asteroza + photosynthesis   52

A Colorful Pallet of B-Phycoerythrin Proteoforms Exposed by a Multimodal Mass Spectrometry Approach: Chem
characterizing cynobacteria photosynthesis pathways, in particular the fancy chemical antennas that make cynobacteria so efficient, might lead to making synthetic analogues with higher efficiency
photosynthesis  chemistry  bilogy  research  technology 
10 days ago by asteroza
Synthetic glycolate metabolism pathways stimulate crop growth and productivity in the field | Science
New synthetic pathway spliced in to override native pathway to improve CO2 capture and reduce accidental O2 capture (and subsequent remediation metabolic cost), for a massive boost in photosynthesis efficiency. But this is for C3 plants, so C4 plants like rice/corn may not work?
C3  plant  GM  GMO  synthetic  photosynthesis  pathway 
january 2019 by asteroza
Cyborg Bacteria Change the Game in Carbon Dioxide Reduction - IEEE Spectrum
tweaked bacteria equipped with cadmium sulfide nanocrystals have superior photosynthesis efficiency, converting sunlight and CO2 into acetic acid, which can be fed to other tweaked E. Coli who can convert acetic acid to butanol.
artificial  photosynthesis  cadmium  sulfide  nanocrystal  bacteria  CO2  fixation  biology  materials  science  research  technology  synthetic  synfuel  biofuel 
august 2017 by asteroza
A synthetic pathway for the fixation of carbon dioxide in vitro | Science
Artificial CO2 fixation cycle (CETCH) made from a combo of 11 enzymes found across animals and plants appears to be 2-3 times faster and 25% more energy efficient than the Calvin cycle, but outputs a weird glyoxylate (which can be further converted to other stuff but...) rather than glucose so now just need to stuff a synthetic bacterium with DNA to build and operate those 11 enzymes to see if it really is better than photosynthesis. Primary boost is replacing RuBisCO with the enzyme ECR for better initial CO2 capture.
synthetic  CO2  carbon  fixation  enzyme  cycle  artificial  photosynthesis  biology  research  technology  optimized  designer  organism  metabolism  Delicious 
november 2016 by asteroza
Photonic multilayer structure of Begonia chloroplasts enhances photosynthetic ef...
Apparently this plant has highly ordered thylakoid tower structure choloroplasts resembling a multilayer photonic crystal, thus implementing slow light techniques to capture more green and red light.
photonic  crystal  high  order  ordered  thylakoid  chloroplast  multilayer  solar  power  biology  physics  slow  light  materials  science  research  photosynthesis  structure  photochemical  propagation  capture  photochemistry  Delicious 
october 2016 by asteroza
Water splitting–biosynthetic system with CO2 reduction efficiencies exceeding photosynthesis | Science
engineered bacteria eat CO2 and H2, output alcohols, so paired with a water cracking catalyst dumping H2 driven by solar panels, can beat natural photosynthesis efficiency
hybrid  biohybrid  symbiotic  artificial  photosynthesis  solar  SolarFuel  biomass  alcohol  biology  materials  science  biosynthetic  electrolysis  catalyst  CO2  carbon  capture  Nocera  Delicious 
june 2016 by asteroza
Amorphous TiO2 coatings stabilize Si, GaAs, and GaP photoanodes for efficient water oxidation
Using electron leaky titanium dioxides as a semiconductor coating that can pass electrons, a possible oxidizing side water photocracker to produce solar fuels.
materials  science  research  technology  artificial  photosynthesis  water  cracking  electrolysis  oxidation  Ti2  leaky  electron  photoanode  nickel  oxide  photocatalyst  solar  fuel  syngas  hydrogen  production  amorphous  Delicious 
june 2014 by asteroza
Panasonic Develops Highly Efficient Artificial Photosynthesis System Generating Organic Materials from Carbon Dioxide and Water | Headquarters News | Panasonic Global
Low efficiency, but interesting single step formic acid production system, and carbon fixing of a sort. Formic acid has been proposed as a hydrogen storage medium as well.
Panasonic  japan  artificial  photosynthesis  nitride  semiconductor  photoelectrode  electrolysis  CO2  carbon  fixing  synthetic  formic  acid  H2C2H  Delicious 
august 2012 by asteroza
.:. Hyper Solar .:.
I think they are basically trying to sell a thin film prismatic lens array with spectrum waveguiding as an aftermarket upgrade to existing solar PV systems. Wait, now they are doing photoelectrochemical hydrogen production with the intent of synthetic natural gas production? Seems they are close to the magical 1.23V open circuit voltage needed for direct solar hydrogen production.
thin  film  optical  solar  concentrator  lens  array  CSP  CPV  addon  hardware  green  energy  PV  photonic  light  routing  separation  photoelectrochemical  nanostructure  artificial  photosynthesis  hydrogen  synthetic  fuel  methane  gas  production  materials  science  research  technology  nanotechnology  direct  high  voltage  cell  STG  Delicious 
february 2011 by asteroza
Solar energy harvesting in the epicuticle of the oriental hornet (Vespa orientalis)
Hornets may have the equivalent of a dye sensitized solar cell embedded in their shell to provide auxiliary power and energy?!?
insect  solar  power  generator  xanthopterin  hornet  biology  electricity  electron  biophysics  physics  materials  science  research  technology  photosynthesis  dye  sensitized  Delicious 
december 2010 by asteroza
Stanford researchers find electrical current stemming from plants
Directly tapping algae cells with piercing gold electrodes to siphon off photosynthesis electrons for power. Scalable? Probably not, unless you can culture the algae cells directly on an electrode grid panel and make them stick.
algae  direct  electron  takeoff  cell  membrane  electrode  photosynthesis  green  energy  power  generator  biology  research  Delicious 
april 2010 by asteroza
Artificial Photosynthesis in Ranaspumin-2 Based Foam - Nano Letters (ACS Publications)
Using frog derived proteins coating a foam structure to produce sugar from water and CO2 directly, no cell or other structures involved. The foam is a high surface area structure to support the carbon fixation and sugar synthesis.
artifical  photosynthesis  enzyme  sugar  production  CO2  nanoscale  photophosphorylation  high  surface  area  foam  structure  protein  Ranaspumin-2  carbon  fixation  suger  synthesis  biofuel  green  energy  biomimicry  engineered  surfactant  Delicious 
march 2010 by asteroza
Slashdot Science Story | One Variety of Sea Slugs Cuts Out the Energy Middleman
A particular sea slug seems to already have a large amount of the DNA required to make chlorophyll, but lacks chloroplasts so has to ingest them by eating algae. Once onboard, you now have an animal with a photosynthetic metablism boost and an alternative energy source for the animal. While it would never be enough to run a human, it would be a nice little boost for people living in the tropics. Possible early genetic treatment for proto-transhumanists, as opposed to that gandollinium nanobot energy source?
sea  slug  animal  plant  hybrid  photosynthesis  solar  energy  metabolism  boost  transhumanism  genetics  DNA  biology  Delicious 
january 2010 by asteroza
Consecutive Thermal H2 and Light-Induced O2 Evolution from Water Promoted by a Metal Complex -- Kohl et al. 324 (5923): 74 -- Science
Okay, if this pans out, this could be huge. An artificial photosynthesis engine to produce hydrogen and oxygen, via a ruthenium metal complex. It's not clear if the hydrogen and oxygen liberation steps must be distinct. Could do a vertical torus pressure vessel half filled with cool water and a rotating catalyst bed ring, moving through pressure seals to separate the upper and lower halfs of the torus. Blast a quarter ring of the exposed exposed upper catalyst with hot water/steam to get a mixed steam/H2 stream, then blast the the other exposed quarter with the light to get O2, that by simple condensation of the stream will yield your hydrogen and oxygen. Dip the catalyst ring back into the cool water to regenerate the catalyst. I suppose there might be some chamber partitioning tricks to keep the oxygen and hydrogen separate.
artificial  photosynthesis  electrolysis  gas  separation  hydrogen  oxygen  water  ruthenium  metal  complex  catalyst  materials  science  research  chemical  process  engineering  thermal  H2  O2  evolution  Delicious 
april 2009 by asteroza

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