Skip to main content

Home/ Groups/ Bobcat Research Institute 2025
11More

Are plants intelligent? It depends on the definition | ScienceDaily - 0 views

  • When leaf beetle larvae eat goldenrod leaves, the plant emits a chemical that informs the insect that the plant is damaged and is a poor source of food. These airborne chemicals, called volatile organic compounds (VOCs), are also picked up by neighboring goldenrod plants, prompting them to produce their own defenses against the beetle larvae. In this way, goldenrod move herbivores on to neighbors, and distribute damage.
    • Sean Nash
       
      Are these VOCs (volatile organic compounds) detectable by us? If not detectable, they can we identify them... and then produce or purchase those chemicals to test their effects on plant responses?
  • start producing defensive compounds that help the plants fight off insect pests.
    • Sean Nash
       
      It seems to me that I remember hydrogen peroxide being one of these signaling chemicals (at least from one part of a plant to another).
  • When no neighbors are present, the plants don't resort to accelerated growth when eaten and the chemical responses to herbivores are markedly different, though they still tolerate quite high amounts of herbivory.
  • ...5 more annotations...
  • Neighboring goldenrod also exhibit intelligence when they perceive VOCs that signal the presence of a pest. "The volatile emission coming from a neighbor is predictive of future herbivory," Kessler said. "They can use an environmental cue to predict a future situation, and then act on that."
  • Applying the concept of intelligence to plants can inspire fresh hypotheses about the mechanisms and functions of plant chemical communication, while also shifting people's thinking about what intelligence really means, Kessler said.
  • "What that means is, the brain in the plant is the entire plant without the need of central coordination," Kessler said.
  • "They can smell out their environment very precisely; every single cell can do it, as far as we know,"
  • André Kessler, Michael B. Mueller. Induced resistance to herbivory and the intelligent plant. Plant Signaling & Behavior, 2024; 19 (1) DOI: 10.1080/15592324.2024.2345985
  •  
    "When goldenrod is eaten by herbivores, it adapts its response based on whether or not another plant is nearby."
7More

Electrified charcoal sponge soaks up CO2 from the air - 0 views

  • With a little bit of electric charge, the sponge-like charcoal material used in household water filters can also capture carbon dioxide from air, researchers report in the journal Nature. The advance could provide a low-cost, efficient route for removing the greenhouse gas from the atmosphere.
  • For the material, the researchers turned to an activated charcoal sponge, a porous substance with a large surface area. The material is commonly found in household purifiers to capture chemicals and toxins from water. Activated charcoal cannot efficiently capture carbon dioxide from air normally. But chemist Alexander Forse and his colleagues proposed that inserting charged, reactive particles into activated charcoal could turn it into a direct air capture sorbent.
  • The researchers charged the activated charcoal cloth in a battery-like setup. They used the cloth like one electrode in a battery, placing it in a solvent solution with an opposite electrode. When they passed electricity through the device, charged hydroxide ions accumulate in the tiny pores of the charcoal cloth.
  • ...2 more annotations...
  • Tests showed that the resulting sorbent material rapidly captured carbon dioxide from ambient air by reacting with hydroxides.
  • One downside to the material is that its performance decreases under humidity. The researchers are working to fix that, and are also to increase the quantity of carbon dioxide that the material can capture.
    • Sean Nash
       
      Seems like a potential engineering challenge to me. I think it would be immediately interesting to figure out more of the detail of what they've done here... and run some quick feasibility tests. Can we easily replicate with available materials? Can we measure the CO2 uptake with simple probes? When testing different versions of the same material, can we compare results with a microscopic examination of the material to potentially correlate a particular construction with better performance? Could we perhaps then suggest best materials for certain circumstances? Could we even create materials that perform better?
  •  
    "When researchers ran a charge through charcoal sponges commonly used in home water filters, they discovered a low-cost, low-energy route to remove CO2 from the air"
6More

New fabric makes urban heat islands more bearable | ScienceDaily - 0 views

  • This year has already seen massive heatwaves around the globe, with cities in Mexico, India, Pakistan and Oman hitting temperatures near or past 50 degrees Celsius (122 degrees Fahrenheit).
  • In tests under the Arizona sun, the material kept 2.3 degrees Celsius (4.1 degrees Fahrenheit) cooler than the broadband emitter fabric used for outdoor endurance sports and 8.9 degrees Celsius (16 degrees Fahrenheit) cooler than the commercialized silk commonly used for shirts, dresses and other summer clothing.
  • "You can save a lot of cooling, electricity and energy costs because this is a passive process," Sui said.
  • ...1 more annotation...
  • Spectrally engineered textile for radiative cooling against urban heat islands. Science, 2024; 384 (6701): 1203 DOI: 10.1126/science.adl0653
    • Sean Nash
       
      I'm not yet convinced of the feasibility of this one, but this might provide a spark for someone. Some types of materials engineering like this is done on a nanoscale, which may not be the best for what we can do... but I believe there is space here for exploring composite materials with different properties to engineer better outcomes than what we're currently dealing with.
  •  
    "With applications in clothing, construction and food storage, the new textile reduces heat from both the sun and thermal radiation from nearby buildings"
2More

Racing drivers blink at the same points when going round a track | New Scientist - 0 views

  • Studying this further could help us better understand conditions where blinking rates change, such as Parkinson’s disease.
  •  
    Not a lot of information in this particular article here, however it does introduce a possible connection to Parkinson's disease. There are multiple links within the article containing a surplus of information around this subject that I will have to research further.
12More

Mysterious Underwater Acoustic World of British Ponds Revealed in New Study | Current S... - 0 views

  • The previously hidden and diverse underwater acoustic world in British ponds has been revealed by a team of researchers at the University of Bristol.
    • Sean Nash
       
      So... my immediate thought is: How cool would it be to do this here? One thing we DO have: PONDS. See if this *sounds* interesting. Get it? ;)
  • Acoustic monitoring has been shown to effectively survey birds and monkeys in rainforests, and marine mammals in the oceans. However, freshwater environments have remained largely unexplored despite their diverse soundscapes.
    • Sean Nash
       
      BOOM. Again, "relatively unexplored" is super exciting verbiage to me. Acoustics. Hydrophones. Is this feasible? Is the equipment affordable? If not, could we borrow one? Dig into it. What are the possibilities?
  • analysis of the audio files revealed clear daily acoustic activity cycles in each pond
    • Sean Nash
       
      Aside from the exploratory surveys you would do just to see "what's out there" and assess what we CAN learn from listening to a pond, you could make it experimental by comparing ponds you've assessed the health of by other means. In other words, do acoustic comparisons between two ponds correlate with what you find by doing a macroinvertebrate sampling? I really LIKE the possibilities in this one!
  • ...3 more annotations...
  • Typically, a nocturnal chorus is made by aquatic insects that compete to attract mates by producing strange scratching sounds as they rub their genitals against their abdomens. During the daytime, however, aquatic plants dominate the underwater orchestra with rhythmic whining and ticking sounds produced as tiny oxygen bubbles are released by plants respiring in the hot sun.
  • Using this acoustic method, the presence of species, and a determination of ecological health, can be inferred simply by listening to the natural world without disturbing the environment or harming the plants and animals within it.
    • Sean Nash
       
      Here is the obvious value proposition if you could work this out.
  • Publication: Jack A. Greenhalgh, et al., Diel variation in insect-dominated temperate pond soundscapes and guidelines for survey design, Freshwater Biology (2023). DOI: 10.1111/fwb.14092.
    • Sean Nash
       
      BEST THING YET: Here is the FULL TEXT of the actual research paper!
    • Sean Nash
       
      Here is the FULL TEXT of the actual research paper!
3More

Regeneron ISEF 2023 - Finalist Project Portal - 0 views

  • Choose a category to begin
    • Sean Nash
       
      This is a really good way to dive into specific categories and explore the projects that made it to this year's ISEF. What I would do is start with what immediately interests you for now... and pick up some tips. You might get ideas for areas/topics to research. You might see creative methods used in various studies. Pay particular attention to the fact that some utilize equipment only available at a university or corporate lab, but... many also feature creative methods done by students at home or in school labs as well! Once you get inside projects that you get ideas from, feel free to save them in Diigo for later, or share really interesting ones with others you think might benefit from seeing it. One final thing: you might also get some tips for elements of their presentation that appeal to you.
  •  
    This is a digital version of a fair- almost like being there
15More

Microwaving an insecticide restores its mosquito-killing power - 0 views

  • Heating an insecticide can give it new life.
    • Sean Nash
       
      Wait... what?
  • Microwaving the insecticide deltamethrin rearranges its crystal structure but doesn’t change its chemical composition. The rearrangement renews deltamethrin’s ability to kill mosquitoes that have become resistant to the insecticide, researchers report April 21 in Malaria Journal.
    • Sean Nash
       
      Seems like potential feasibility
  • The microwave worked just as well, but Kahr cautions that people shouldn’t use the same microwave for heating food and insecticides.
    • Sean Nash
       
      Ha! Oh really??
  • ...6 more annotations...
  • insecticide resistance is a growing problem
  • “There are all kinds of social and cultural things that you could propose from a scientific perspective that wouldn’t be welcomed by a community of homeowners.”
    • Sean Nash
       
      Another positive...
  • It’s not certain that the heat-treated deltamethrin would retain its more potent crystal structure through the net-making process.
  • Kahr’s team is working on incorporating the heat-treated crystal into nets.
  • It is encouraging that heated insecticide killed highly resistant mosquitoes, says Hemingway, who directs the Infection Innovation Consortium, a public-private effort to find new ways to combat infectious diseases. But, she says, “this is not something we can take and use that tomorrow.”
    • Sean Nash
       
      OK.... this is how you can find an opening (not saying THIS ONE is necessarily, but, when you see language like: "we can't really do it just yet," that is a screaming opportunity to see what we MIGHT be able to add to that. We would just want to get early approval from the fair re: hazardous substances. I think we could.
  • Kahr and colleagues previously discovered that heating deltamethrin changed its crystal structure, which let it work faster
  •  
    "Wait, what? Do say more....."
1More

Microplastics found in every semen sample tested by research team - 0 views

  •  
    Yeah... everywhere we look, more and more we're finding out the mess we've made of the planet.
1More

A new study reveals that marine cyanobacteria communicate - 0 views

  •  
    Adding this one less as feasible study inspiration, and more of... this is a huge finding about the most important organisms on the planet as a whole. The more we search, the more we find that organisms communicate. Cooperate even. Trees in a healthy forest communicate and cooperate. And now this. So cool...
12More

Race car drivers tend to blink at the same places in each lap - 2 views

  • The world goes dark for about one-fifth of a second every time you blink, a fraction of an instant that’s hardly noticeable to most people. But for a Formula One race car driver traveling up to 354 kilometers per hour, that one-fifth means almost 20 meters of lost vision
  • People are often thought to blink at random intervals, but researchers found that wasn’t the case for three Formula drivers.
  • the drivers tended to blink at the same parts of the course during each lap, cognitive neuroscientist Ryota Nishizono and colleagues report in the May 19 iScience
    • Sean Nash
       
      Interesting. So, do we do the same thing while driving around town? Could you design a method to record eye blinks as people drive known routes around town? We could simultaneously use the Arduino Science Journal app on the iPhone to also correlate physical data in a moving car like acceleration/deceleration, motion in X, Y, Z directions, etc. I wonder if we could find a correlation in everyday driving that could help from a safety perspective?
  • ...5 more annotations...
  • He was surprised to find almost no literature on blinking behavior in active humans even though under extreme conditions like motor racing or cycling
    • Sean Nash
       
      Ok.... this screams "potential research idea."
  • Nishizono and colleagues mounted eye trackers on the helmets of three drivers and had them drive three Formula circuits
  • Where the drivers blinked was surprisingly predictable, the team found. The drivers had a shared pattern of blinking that had a strong connection with acceleration, such that drivers tended not to blink while changing speed or direction — like while on a curve in the track — but did blink while on relatively safer straightaways.
    • Sean Nash
       
      What sort of implications does this have for driving in key, known, busy interchanges in KC? Could we potentially provide data to show certain stretches of highway need more signage, etc? That could have civil engineering implications.
  • “We think of blinking as this nothing behavior,” he says, “but it’s not just wiping the eyes. Blinking is a part of our visual system.”
  • Nishizono next wants to explore what processes in the brain allow or inhibit blinking in a given moment, he says, and is also interested in how blinking behavior varies among the general population.
    • Sean Nash
       
      While the "brain" part might move beyond our feasibility, the potential of finding real correlations to driving patterns or routes is a completely different spin-off and one that could have really practical suggestive applications for city planners, etc.
2More

Picture this: Snapping photos of our food could be good for us - 0 views

  • Research reveals taking pictures of food isn't just content for our social media feeds, but could be the key to improving people's diets
    • Sean Nash
       
      I just have a gut feeling that, over time, if you knew you were going to photograph every meal, you would tend to eat less, eat more colorful things, and eat more varied things... so that it would make a better photograph. Each of those elements might just lead to healthier meals over time. Very interesting. It is sort of like imposing a metacognitive approach to food selection.
8More

Could the world famous Roman Baths help scientists counter the challenge of antibiotic ... - 0 views

  • Proteobacteria and Firmicutes
    • Sean Nash
       
      If we were able to sample various springs/baths in the midwest could we even culture strains like this, and then what would it take to identify them? You could compare that perhaps to total colony counts on Petri dishes.
  • a detailed examination of the bacterial and archaeal communities found within the waters of the popular tourist attraction in the city of Bath
    • Sean Nash
       
      The Elms is a famous springwater bath locale here in Excelsior Springs, Missouri less than an hour away. Eureka Springs, Arkansas is another area nearby off the top of my head. This also has me asking general questions about other bathing scenarios that would not likely feature ancient microbes, like hot tubs, swimming pools, etc. I wonder about ALL of the variables that go into the conditions of these baths and how that might correlate to total numbers of bacteria as well as differing types. There isn't a TON of microbiology that we can do in the high school lab without help, but I do know that we are generally permitted to work with environmentally-found bacteria (like the little lab we did in the Addie unit).
  • Scientists collected samples of water, sediment and biofilm from locations within the Roman Baths complex including the King's Spring (where the waters reach around 45°C) and the Great Bath, where the temperatures are closer to 30°C.
    • Sean Nash
       
      This means they collected from the water column itself, but also biofilms (which would be found along the edges of containments walls, etc... in addition to sediment found at the bottom of natural spring sources.
  • ...1 more annotation...
  • The samples were then analysed using cutting edge sequencing technology and traditional culturing techniques were employed to isolate bacteria with antibiotic activity.
    • Sean Nash
       
      This obviously would require a significant bit of outside help. However, I'm still not sure we couldn't do more basic work that would be meaningful.
16More

Airplane Noise Exposure May Increase Risk of Chronic Disease | SPH - 0 views

  • people who were exposed to higher levels of noise from aircraft were more likely to have a higher body mass index, an indicator for obesity that can lead to stroke or hypertension. The findings highlight how the environment—and environmental injustices—can shape health outcomes
  • self-reported body mass index (BMI)
  • The study is the first to explore a connection between aircraft noise exposure and obesity nationwide in the United States; past studies on this subject have focused on European populations, and results have varied
    • Sean Nash
       
      It would be interesting to see how these studied varied. I would bet that there are other, stronger factors overlying this effect, and it would be challenging to tease out this signal from other socioeconomic factors, but I very much like this concept.
  • ...8 more annotations...
  • “Prior research has shown that aircraft noise can elevate stress responses and disturb sleep, but there has been mixed evidence of any links with body mass index,” says study lead and corresponding author Matthew Bozigar, assistant professor of epidemiology at OSU and a former postdoctoral associate at SPH. “We were surprised to see a fairly robust link between aircraft noise and higher body mass index among women across the US.”
  • These new findings underscore the role of the environment on one’s risk of chronic disease.
  • Junenette Peters, associate professor of environmental health, and colleagues examined airplane noise exposure and self-reported BMI and other individual characteristics among nearly 75,000 participants living around 90 of the major US airports
  • The team examined aircraft noise levels every five years from 1995 to 2010, using a day-night estimate (DNL) that captures the average noise level over a 24-hour period and applies a 10 dB adjustment for aircraft noise occurring at night, when background noise is low.
    • Sean Nash
       
      I'm sure there are low-powered data loggers that measure dB that we could plant in various places (varying distances from airports (or other things... even just distances from population centers in general). This would allow us to not only work with and search for correlations between data points already collected, but also to generate more specific data on our own. The human data might not necessarily have to be collected by us. The challenge might be just to find databases that have already been collected for various reasons. Much science is done in this way, where instead of generating a ton of data to analyze, the researcher used previously collected data to ask new and interesting questions of.
  • Although the team acknowledges that BMI is a suboptimal metric, the independent and strong association between more aircraft noise exposure and higher BMI that they observed is notable.
  • “We can only hypothesize about why we saw these regional variations, but one reason may relate to the era of regional development, building characteristics, and climate which may affect factors such as housing age, design, and level of insulation,” says Peters. “Regional differences in temperature and humidity may influence behaviors such as window opening, so perhaps study participants living in the West were more exposed to aircraft noise due to open windows or housing type, which allowed more noise to penetrate.”
    • Sean Nash
       
      The really interesting work here would be teasing interesting patterns out of really complex data sets. For example, people living near airports typically live in housing that is less expensive due to the lesser desirability of living in that area. That tends to correlate with lower socio-economic status found near airports. However, this is interesting because the major flightpaths to the KCI airport do not exactly line up in this way. For example, three of the school districts in Missouri that line up with KCI runways (Park Hill Schools - where we live, Platte County Schools, Kearney Schools, Smithville Schools, and the northern part of North Kansas City Schools) are all of a higher than average socioeconomic status than outlying areas closer to the city. This is unusual in major metropolitan areas.
  • Previous data suggest that Black, Hispanic, and low-income populations are disproportionately exposed to aircraft noise. The participants in the NHS study groups were primarily White and of mid-level socioeconomic status. 
    • Sean Nash
       
      Again, this is a bit different than around most airports. The area immediately surrounding KCI is rather white and mid-to-upper SES.
  • “We need to study the potential health impacts of environmental injustices in transportation noise exposures alongside other environmental drivers of poor health outcomes” Bozigar says. “There is a lot more to figure out, but this study adds evidence to a growing body of literature that noise negatively impacts health.”
    • Sean Nash
       
      What other environmental factors can be studied either by direct measurement, or by querying previously-collected data to ask/answer questions about environmental health?
2More

Study shows that opportunity costs influence when people leave social interactions - 1 views

  •  
    I like this sort of research. Do you think a game like this is either build-able or perhaps even getting access to the one they used? Is it open source? Can you track down this paper? I'm wondering about tying it to depression, etc. That might drift into territory they might not approve at this age (especially since all participants have paperwork they have to sign off on, and any participants under 18 have to have the paperwork signed off by a parent. I wonder if you might dig into introversion/extroversion and whether that might have an impact on similar things. Seems like it might.
  •  
    This also makes me think of the UCSD juncos... and how they forage longer in stressful environments due to decreased corticosterone levels....... and how that is a key characteristic allowing them to survive in a human-built environment.
1More

Q. What's the greener building material, fungus or concrete? - 0 views

  •  
    This is more of a broad idea re: the use of living things as building materials - not so much detail in this specific article
59More

Frontiers | Overview of Carbon Capture Technology: Microalgal Biorefinery Concept and S... - 1 views

  • The impending danger of climate change and pollution can now be seen on the world panorama. The concentration of CO2, the most important Green House Gas (GHG), has reached to formidable levels.
    • Sean Nash
       
      OK: Is it an important field of study? Check. Is it timely? Check. Is it feasible? Let's see...
  • (iii) microalgae cultivation
    • Sean Nash
       
      You can instantly tell that there would be a strong math component to this work. You would need to show how your finding scale up to total carbon sequestered via whatever method? Biofuel production perhaps?
  • Furthermore, microalgae can be fed with notorious waste gasses such as CO2 and NOx, SOx from flue gas, inorganic and organic carbon, N, P and other pollutants from agricultural, industrial and sewage wastewater sources so as to provide us with opportunities to transform them into bioenergy, valuable products and forms that cause least harm to the environment
    • Sean Nash
       
      OK, so... you could likely create a biofuel from algae produced via the insertion of CO2 into a bioreactor system (perhaps even test the one you have vs. a creation fo your own to maximize growth with a more powerful set of lights and extensive tubing). Right off the top of my head, I know we can easily access commercial CO2 canisters that are used in aquarium setups to boost plant growth. Fluval makes such canisters. You would have to find out the volume/mass of CO2 contained in one. You'd have to be less concerned with toxins of you are able to choose a different algae for this capture vs. the rather toxic species you worked with last year.
  • ...30 more annotations...
  • The uncomplicated cellular structures and rapid growth of microalgae endow them with CO2 fixation efficiency as higher as 10–50 folds than terrestrial plants
  • Recently, many research studies have come up showing the positive impact of growing microalgae under high concentrations of Ci in the form of pure gaseous CO2, real or simulated flue gas, or soluble carbonate (bicarbonate), reporting increased carbon bio-fixation and biomass productivity
    • Sean Nash
       
      How does the carbon concentration of such things as flue gas (from industry) compare to the levels in a commercially-available CO2 canister? I'm assuming those are lower, but that's OK. You would just need to be able to do the math to compare the ratios. Also, there is nothing that says you couldn't perhaps use multiple canisters to boost the CO2 levels assuming they could survive in whatever concentration you're feeding them with. It does acidify water.
  • Despite such remarkable potential, the production of microalgae for low-value bulk products, such as proteins for food/feed applications, fatty acids for nutraceuticals or bulk products such as biofuels, is heretofore, not economically feasible
    • Sean Nash
       
      So... this asserts that biofuel production (which would already be better than using human food crops such as corn) is not economically feasible. Let's find out WHY it isn't. What do the numbers look like? What is missing? Is there a way to engineer a process that boosts economic feasibility through some innovation?
  • The microalgal biomass majorly constituted of lipids (7–23%), proteins (6–71%) and carbohydrates (5–64%), depending upon the microalgal specie and culture conditions
    • Sean Nash
       
      Start searching for data on the differences of these compounds in algal cultures of various species. Finding the right species in terms of the components produced (though perhaps your process will boost these numbers in some way- verified by testing at a local lab). I would query perplexity to find papers that outline what components are produced by what species.... then you can compare that to the ease of culture of different species.
  • Biofuels from microalgae, production system, conversion technologies, life cycle analyses have been extensively reviewed, hence detailed description is not presented in this review.
    • Sean Nash
       
      This clearly suggests that a TON of work has been done in these areas. The negative? -> Harder to find original work, the positive -> here is a TON of search terms to build up your background knowledge on primary research in these areas. The real creativity in science often stems from finding a unique wrinkle that is embedded in extensive work.
  • the lipid content of common microalgae such as Chlorella, Dunaliella, Isochrysis, Nannochloris, Nannochloropsis, Neochloris, Phaeodactylum, Porphyridium, and Schizochytrium, varies between 20 and 50% of cell dry weight
    • Sean Nash
       
      So, fat production is what is important in biodiesel. That is why a former student of mine utilized kitchen fry oil (used) for the production of biodiesel back in the 90s. Look up the lipid content of each of these species and check that against their toxicity and ease of growing/working with/etc.
  • can be augmented to higher levels by manipulating environmental and other growth factors, process optimization and genetic modifications of the production strain. Nitrogen starvation and salinity stress are known to induce an increase in TAG (triacylglycerol) accumulation and relative content of oleic acid in most of the microalgal species
    • Sean Nash
       
      So, this suggests already some ways in which the lipid content can be augmented via the manipulation of several variables in growth factors. There might ba an angle here.
  • C14:0, C16:0, C18:1, C18:2, and C18:3 fatty acids, yet the relative composition varies from species to species
    • Sean Nash
       
      I'm confident that we can find a local lab that can help us test the length of chain that indicates exactly which fatty acids are being produced and perhaps how that ratio changes based upon some variable in your process.
  • The lipids can be converted into FAMEs (fatty acid methyl esters) via transesterification for biodiesel production.
    • Sean Nash
       
      This is key.... can we convert algal lipids into FAMEs in the lab at school with the help of Harkleroad & Tabor? Find out what all chemical processes are involved. My initial gut feeling i that it isn't an terribly prohibitive process considering how simple biodiesel was to produce in the school lab previously.
  • Furthermore, the residual de-oiled microalgal biomass can be used for animal feed.
    • Sean Nash
       
      Also, a very cool side element to consider. This might help you decide upon an algal species considering the concentration of toxins in various species, etc.
  • The resistance of cell wall to enzyme hydrolysis is one of the prime bottleneck in the Anaerobic digestion (AD) process. The overall economic feasibility of the process depends on the factors affecting AD, microalgal strain, biomass pretreatment, and culture methods (Jankowska et al., 2017). Lately, to make the system economically viable and environmentally sustainable, a closed-loop production scheme is being adopted wherein AD effluents are recycled and used as an input in the first step of AD. Jankowska et al. (2017) have presented a detailed review microalgae’s cultivation, harvesting and pretreatment for AD for biogas production.
    • Sean Nash
       
      This is a fascinating element, and one I know less about. This might be significantly more sophisticated, but that in no way should scare you. Perhaps it isn't that difficult and it would be super fun and challenging to engineer a way to do (or improve) this. (?) However, my initial gut feeling is that working with biogas production would be more difficult than liquid forms.
  • Bioethanol The carbohydrate part (mainly glucose, starch, cellulose, and hemicellulose) of the microalgal dry biomass can be used for transforming into bioethanol via fermentation. Although, microalgae accumulate relatively low quantities of sugars, the absence of lignin from microalgal structure makes them advantageous over other feedstock such as corn, sugarcane, and lignocellulosic biomass (Odjadjare et al., 2015; Jambo et al., 2016). Isochrysis galbana, Porphyridium cruentum, Spirogyra sp., Nannochloropsis oculate, Chlorella sp., are mainly exploited microalgae for the production of carbohydrates
    • Sean Nash
       
      OK, now I'm starting to see where they're going with this specific paper.... they are asserting that you'd have to find a way to separate out all of the components of the produced algal mass to gain value for each component to make it economically feasible. Do you perhaps end up finding that one particular species has both a high lipid profile (for biodiesel) as well as a reasonable carbohydrate profile (for bioethanol)?
    • Sean Nash
       
      I know less about this... is more of a fermentation process and might be a bit more dangerous that biodiesel production. Not sure, just a gut feeling when keeping in mind the safety forms. Something to bookmark.
  • Despite having notable significance, limited number of studies have reported laboratory stage work on the fermentation of microalgae biomass to butanol (Cheng et al., 2015; Gao et al., 2016; Wang et al., 2016).
    • Sean Nash
       
      A huge flag that this is an area ripe for innovation. I don't know much about the feasibility of this.... but it's interesting for sure.
  • Value-Added Products In the context of biorefinery approach, intracellular compounds and metabolites have gained immense importance owing to their high monetary value. Microalgal pigments: chlorophyll a and b, lutein, astaxanthin, β-carotene, phycobilins, C- phycocyanin have found wide application in dyes, cosmetics, food and feed additives, nutraceuticals and pharmaceuticals, as natural colors, bioactive components, anti-oxidants, nutritive and neuro-protective agents (Koller et al., 2014; Begum et al., 2016). Microalgae are also exploited as rich source of amino acids (leucine, asparagine, glutamine, cysteine, arginine, aspartate, alanine, glycine, lysine, and valine), Carbohydrates (β1–3- glucan, amylose, starch, cellulose, and alginates), Vitamins and minerals (vitamin B1, B2, B6, B12, C, and E; biotin, folic acid, magnesium, calcium, phosphate, iodine) that are widely used in Food additives, health supplements and medicine. Microalgae, such as Nannochloropsis, Tetraselmis, and Isochrysis are used for extraction of long chain fatty acids popularly known as the omega fatty acids such as DHA (Docosahexaenoic Acid) and EPA (Eicosapentaenoic Acid), have lately gained prime attention as essential for human brain development and health. Other than these, microalgae are also used for production of Extracellular Polymeric Substances (EPSs) which have many industrial applications and Polyhydroxyalkanoates (PHAs). PHAs can be used for manufacturing bioplastics that are very sought after because of their biodegradability (Markou and Nerantzis, 2013; Koller et al., 2014).
    • Sean Nash
       
      This area is more novel.... and thus, I know the least about the feasibility of this, or our ability to measure the production of such compounds. I know the capability exists in the KC area, but you'd have to establish a relationship with someone who could help with this instrumental analysis.
  • Although many have reported successful utilization of microalgal biomass for the production of bioproducts within a biorefinery framework, the economic feasibility is unrealized and the microalgae biorefinery is way much expensive (’t Lam et al., 2017; Zhou et al., 2017). To attain feasibility and sustainability, both upstream processing (USP) and downstream processing (DSP) need to be efficiently simplified and integrated. The efficiency of the USP is determined by microalgal strain selection, nutrient supply (CO2, N, and P) and culture conditions (temperature, light intensity) (Vanthoor-Koopmans et al., 2013). Whereas, the constraints at the DSP level are mainly characterized by harvesting, cell disruption, and extraction methods. DSP, specifically harvesting accounts for 20–40% of the total production costs and for a multi-product biorefinery, the cost increases to 50–60% (’t Lam et al., 2017).
    • Sean Nash
       
      Managing what is done to the algae PRE growth and POST growth. So many variables here. This is a TON of figure out, but with more variables comes more opportunity if you're willing to learn a broad new area of science (to you).
  • Bioprospecting suitable microalgae is a crucial but time intensive step
  • high throughput screening techniques like 96-well microplate swivel system (M96SS) have made processing upto 768 microalgal samples at the same time, possible
    • Sean Nash
       
      This suggests to me that rather than go down this path of full discovery... can we learn from the extensive work that has already been done here? In other words, your innovation would be less about discovering the right species to use... and more about innovating around the process. (?)
  • mixed diverse community of microalgae, dominated by Desmodesmus spp., could be adapted over a time of many months to survive in 100% flue gas from an unfiltered coal-fired power plant containing 11% CO2
  • Besides stress manipulation and acclimatization, desirable traits of the microalgal strains can be effectively improved by genetic and metabolic engineering/synthetic biology. Lately, genome editing tools such as Clustered Regularly Interspaced Short Palindromic Repeats – CRISPR associated protein 9 (CRISPR-Cas9) and Transcription Activator-Like (TAL) Effector Nucleases (TALEN) are being used in microalgal gene alterations. Moreover, gene-interfering tools, such as CRISPR-dCas9, micro RNA (miRNA), and silence RNA (siRNA) are being explored to alter the gene expression unlike gene modification.
    • Sean Nash
       
      The least "immediately feasible" area of this paper.....
  • Large scale microalgal cultivation and nutrient supply pose huge economic burden. In this context emphasis is being laid on biofilm based attached cultivation rather than aqua-suspend methods that have massive water requirement, low biomass productivity, energy intensive and cannot be easily scaled up
    • Sean Nash
       
      So... the scale is the problem. Methods of growing suspended in water are all I have been thinking of.... even engineering some crazy method of networks of fine, clear tubes full of algae, etc... here they're saying this is a massive challenge and requires a big industrial output to make it economically feasible. The good and the bad? The bad is that you could do a ton fo work that in the end isn't economically feasible for real world use. The good is that optimizing some stage or element of the process could potentially change this calculaton.
  • Centrifugation is the most efficient (>95% efficiency) method for harvesting microalgae
    • Sean Nash
       
      We have a centrifuge. (about a $4000 one, in fact) but it is useful only for small amounts. That doesn't solve the "how do we centrifuge large amounts of algae/water mix to harvest it," but it does allow a scaled-down version for testing small amounts that could be mathematically scaled up.
  • Flocculation is a low-cost alternative. Cationic chemical flocculants and polymeric flocculants are generally used (Brennan and Owende, 2010), but can negatively affect the toxicity of the biomass and output water (Ryan, 2009). Zhou et al. (2012) reported a novel fungi assisted bioflocculation technique, in which a filamentous fungal spores were added to the algal culture under optimized conditions and the pellets were formed after 2 days that can be harvested by simple filtration. Attached culture can also make harvesting simple (Wang et al., 2017).
    • Sean Nash
       
      This whole topic you have stumbled upon (bioengineering of algae as ultimately a way to sequester carbon in an economically-feasible way) is massive in terms of complexity of the entire system. But, subsystems are less complex and more ripe for digging into. The key thing is that this has to be interesting enough to you.... that you are willing to understand ALL of the moving parts so that you would know how your component of the puzzle fits into the broader scope of the work. It is super interesting to me and I do think there are a million variables to choose form here.... once you decide IF this is worth pouring your heart into... it is time to read read read!
  • Microalgae based carbon capture technologies are certainly promising but their successful implementation is still to be realized.
  • But, the prospects of successful commercial deployment lie in unsophisticated innovations in DSP, particularly harvesting, cell disruption and extraction, which can actually cut down the costs at a biorefinery level, along with process integration.
    • Sean Nash
       
      THIS is the sort of thing that should be encouraging. When they say that success lies in "unsophisticated innovations," that should read like: this takes tons of hard work and perseverance, but technically it isn't all that fancy.... to you. This is a good thing.
  • on can
  • . Recent technoeconomic analyses and life-cycle assessments of microalgae-based production systems have suggested that the only possible way for scaling up the production is to completely use the biomass in an integrated biorefinery set-up wherein every valuable component is extracted, processed and valorized.
  • The temperature of the planet has risen by 0.85°C from 1880 to 2012 and it has been forecasted that by the end of this century
  • CCS operate over 3 major steps: CO2 capture, CO2 transportation and CO2 storage.
  • CO2 capture is done from large point sources such as power plants and cement manufacturing plants. The separation and capture of CO2 from other exhaust components is usually done via following methods: (i) chemical absorption; (ii) physical adsorption; (iii) membrane separation; and (iv) cryogenic distillation (Figueroa et al., 2008; Pires et al., 2011, 2012).
  • carbon capture and storage (CCS)
  •  
    I haven't fully finished reading it, but it does seem to be interesting. It may be a rabbit hole I wanna go down.
  •  
    Annotating thoughts for Katherine...
11More

Biodegradation of polyethylene by the marine fungus Parengyodontium album - ScienceDirect - 1 views

  • UV light
    • emmarrogers
       
      If we were to use X or Gamma rays, would that speed up the process?
  • Graphical abstract
    • emmarrogers
       
      Why does it need the 9 day incubation period? Could we lower that
    • emmarrogers
       
      So, could we just do this with a plastic bottle?
  • degradation
  • ...2 more annotations...
  • Other important plastic types afloat in the sea are polypropylene (PP) and to a lesser degree polystyrene (PS) and polyethylene terephthalate (PET).
    • emmarrogers
       
      Does/ Could this fungi degrade these as well
  • Zalerion maritimum (Paço et al., 2017), Alternaria alternata FB1 (Gao et al., 2022) and Rhodotorula mucilaginosa (Vaksmaa et al., 2023a), while Cladosporium halotolerans 6UPA1 was shown to degrade PUR (Zhang et al., 2022).
  •  
    Strange.... when I go to this article, I can see your highlights, but I cannot see your comments. Usually, when I can see those, I can comment back right there as opposed to saving it myself. Grrrr...
  •  
    Super interesting topic (I saw this one last week). The work with isotopes they did here is well beyond feasibility for us, but that doesn't mean there isn't something here that could be done. You'd have to work through the set up of marine environments (tanks) and acquisition of these fungal strains. I'm betting the one they recently recovered from biofilm on plastic trash in the ocean would be super difficult to get our hands on, but they do mention several others that have previously been found to degrade plastics. perhaps those are more easily obtained. (?) Degredation fo plastic by microbes is EXACTLY what the cheater-guy did in lasy year's winning ISEF project, but like this article says, most of this work has been done with bacteria, not eukaryotic organisms like fungi. I also thing the area of biofilms is super interesting. The analysis (beyond weighing the plastic pre/post) is rather instrumental and that might be difficult depending upon our ability to find someone to help us analyze instrumentally. I like the idea, but feasibility is unknown at the moment. You might want to keep reading down this area. It is certainly interesting and important. Keep an eye on feasibility as you go forward.
14More

Frequent mowing puts poisonous weed into survival mode | ScienceDaily - 0 views

  • The taproot went down further
  • More spikes popped out on the stem
  • The flowers became more toxic
  • ...8 more annotations...
  • Although studies have often highlighted weed fitness and defense traits resulting from disturbances like mowing, most were limited to foliar, or leaf, defenses, Kariyat said. That changed when Vasquez and fellow master's biology students at the University of Texas Rio Grande Valley monitored fields of mowed, unmowed and frequently mowed silverleaf nightshade in and around Edinburg, Texas.
  • "Alejandro's question was, 'how do these flowers differ between mowed and unmowed plants?'"
  • "You are trying to mow these plants so that the plants are getting eliminated," Kariyat said. "But what you are actually doing here, you are making them much worse, much stronger."
  • The observations of mowed, unmowed and frequently mowed areas with silverleaf nightshade provide evidence that could prompt further studies by weed scientists on best management practices, Kariyat said.
    • Sean Nash
       
      Again... when you see a callout like this for more research in an area... especially one that might be feasible with some serious planning/organization... you might be on to something.
  • the study does provide more insight into the defensive capabilities of plants pitted against human disturbance
  • "Continuous mowing differentially affects floral defenses in the noxious and invasive weed Solanum elaeagnifolium in its native range."
  • Journal Reference: Alejandro Vasquez, Alexa Alaniz, Robert Dearth, Rupesh Kariyat. Continuous mowing differentially affects floral defenses in the noxious and invasive weed Solanum elaeagnifolium in its native range. Scientific Reports, 2024; 14 (1) DOI: 10.1038/s41598-024-58672-w
  • Solanum ptychanthum or black nightshade, and Solanum carolinense, or Carolina horsenettle, also produce toxic berries and are native to Arkansas.
    • emmarrogers
       
      Could we possibly research different types of weeds similar to the silver Nightshade, like one of these plants?
  •  
    There is a TON of data that can be measured & analyzed in a study like this. Easier to do in a less time-dependent way in the lab, but easier and more realistic (in vivo) to do if you have access to similar fields that are mowed and unmowed to differing extents. So many variables to examine and consider here for how plants may change physiologically based upon how we interact with them. This goes beyond that analogy I always use for fast evolution in Honors Biology: how dandelion populations become shorter based upon frequent mowing. This gets into the physiological responses. Very cool methinks.
7More

Traffic speeds decrease when bike lane is present | ScienceDaily - 0 views

  • Researchers conducting a study at a high-traffic intersection in a Jersey Shore town have found that the installation of a bike lane along the road approaching the convergence reduced driving speeds.
  • "We are giving you more evidence that bike lanes save lives,"
  • The research team started by creating a temporary bike lane on Cookman and Asbury Avenues on the side of the road heading toward the beach, delineating it with orange road cones.
    • Sean Nash
       
      Though you COULD NOT do something this manipulative, you COULD contact municipalities nearby and inquire about current and near-future efforts to install bike lanes... and THEN collect pre-and most traffic data in real-time. This would be quite feasible and super interesting. It would be all about doing the legwork to find where these design changes are being made, and of course the timing of it all.
  • ...3 more annotations...
  • They found that the presence of the delineated bike lane made a difference: a 28 percent reduction in average maximum speeds and a 21 percent decrease in average speeds for vehicles turning right.
  • In addition, drivers moving at a perpendicular angle to the bike lane did not slow down.
  • With pedestrian deaths rising nationally, a study such as this could contribute to the development of new traffic policies or the reversal of older ones, Younes said.
1 - 20 of 78 Next › Last »
Showing 20 items per page