asteroza + nanoparticle   99

OSA | Laser coloration of metals in visual art and design
Some sort of way of using a single laser to multicolor metal coloring using not just classic laser oxidation or periodic grating, but also some sort of subwavelength nanoparticle surface treatment
laser  oxidation  periodic  grating  subwavelength  nanoparticle  surface  treament  metal  coloring  color  materials  science  research  technology 
27 days ago by asteroza
Home - 24M
Using mag fields to align magnetic nanoparticles in an electrode to improve electron paths, for higher peak battery output.
materials  science  research  technology  battery  energy  storage  lithium  ion  magnetic  nanoparticle  alignment  electrode  electron  path  management  peak  discharge 
october 2018 by asteroza
In situ tribochemical formation of self-lubricating diamond-like carbon films - ScienceDirect
So rubbing palladium-gold alloys in teh presence of carbon containing stuff makes very slippery diamond-like carbon films without an expensive plasma furnace, and might be suitable for mass production use
palladium  gold  nanoparticle  amorphous  diamond  carbon  film  nanocomposite  lubricant  materials  science  research  technology  tribochemical  production  process 
august 2018 by asteroza
The optical duality of tellurium nanoparticles for broadband solar energy harvesting and efficient photothermal conversion | Science Advances
Putting the tellurium nanoparticles directly in the water sounds like a bad plan for an industrial process, but this might lead to a better solid absorber for a thermal receiver?
tellurium  nanoparticle  broadband  solar  absorber  materials  science  research  technology  nanophotonic  photothermal  water  evaporation  seawaer  thermal  desalination  distillation 
august 2018 by asteroza
IFEs batteriforskere har knekt batteri-kode: Kan revolusjonere rekkevidde og levetid — IFE
SiliconX, aka IFE silicon alloy, a silicon nanoparticle composite, might be a future battery anode
batery  anode  materials  science  research  technology  SiliconX  silicon  nanoparticle  composite  IFE  alloy 
july 2018 by asteroza
Enrichment of molecular antenna triplets amplifies upconverting nanoparticle emission | Nature Photonics
apparently the lanthanide was upconverting 3 IR photons into a single visible light photon, but also seems to self destruct.
frequency  converter  upconverter  nanoparticle  organic  dye  lanthanide  doping  UCNP  materials  science  research  technology 
april 2018 by asteroza
New boat hull antifouling paint using ceramic nanoparticles to make a surface so smooth that barnacles can bare stick, and even if they do you can wipe them off with a sponge
marine  antifouling  paint  polythiourethane  ceramic  particle  nanoparticle  materials  science  research  technology  germany  EU 
december 2017 by asteroza
Geometric Design of Scalable Forward Scatterers for Optimally Efficient Solar Transformers - Kim - 2017 - Advanced Materials - Wiley Online Library
Mimicking iridocyte cells on clam mantles to make lightpath pillars to feed algae clusters with light, with implications for algae bioreactors using piped light for making biofuels.
iridocyte  biomimicry  nanoparticle  microbead  pillar  materials  science  optical  research  technology 
november 2017 by asteroza
Product selectivity in plasmonic photocatalysis for carbon dioxide hydrogenation...
Rhodium nanoparticles bombarded by UV can selectively produce mostly methane from CO2 and H2, rather than producing half methane and half CO.
rhodium  nanoparticle  plasmonic  UV  photocatalyst  synfuel  methane  CH4  production  materials  science  research  technology  Delicious 
february 2017 by asteroza
SIJTechnology – 超微細インクジェット、ピエゾ方式インクジェット、コーティング装置などの塗布技術による、超微細パターニングやコーティング技術をご提...
Appears to use metal nanoparticles in a liquid droplet inkjet process. Metal nanoparticles can apparently melt at room temperature, so this printer operates in ambient atmosphere/temperature
japan  metal  3D  printer  fabber  inkjet  nanoparticle  picoliter  droplet  conductive  ink  Delicious 
december 2016 by asteroza
High thermal conductivity in polaritonic SiO2 nanoparticle beds - Materials Hori...
A heat transfer material that electrically insulates, apparently the surface phonon effect starts at 50C, so easy to use with electronics.
silicon  dioxide  SiO2  nanoparticle  packed  particle  bed  thermal  conductor  surface  phonon  polariton  macroscopic  heat  transfer  ethylene  glycol  cooling  Delicious 
july 2016 by asteroza
From tunable core-shell nanoparticles to plasmonic drawbridges: Active control o...
Electric voltage induced color changes in silver nanoparticle infused glass, effectively making active stained glass.
silver  nanoparticle  plasmon  tuning  optics  materials  science  research  technology  active  color  change  glass  reversible  switching  Delicious 
june 2016 by asteroza
Laser-assisted direct ink writing of planar and 3D metal architectures
Basically a freeform 3D printer like a solidoodle, using silver nanoparticle ink, and weird tuned lasers to solidify nozzle output.
3D  printing  fabbing  echnique  silver  nanoparticle  ink  laser  solidification  materials  science  freeform  research  technology  metal  Delicious 
may 2016 by asteroza
High-rate aluminium yolk-shell nanoparticle anode for Li-ion battery with long cycle life and ultrahigh capacity : Nature Communications : Nature Publishing Group
Interesting trick of using an alumina oxide nanoparticle, converting the outer layer to titanium oxide, and thus creating a nanoparticle anode with a squishy center that can handle expansion stress from battery cycling.
nanocomposite  nanoparticle  titanium  oxide  shell  aluminum  yolk  materials  science  research  technology  nanotechnology  high  performance  battery  anode  Delicious 
august 2015 by asteroza
Macroscale superlubricity enabled by graphene nanoscroll formation
So right now this only works with amorphous diamond surfaces, but couple this with that diamond bearing coating that was recently announced, and you might have something good here.
diamond  nanoparticle  encapsulation  nanoscroll  roll  ball  low  friciton  materials  science  research  technology  nanotechnology  graphene  Delicious 
june 2015 by asteroza
Dr.Hilonga is creating semi-customized nanoparticle based final stage water filters for water purification in rural Tanzania. His premise is that one-size-fits-all filter designs are somewhat inappropriate, and should be more tailored to the local conditions/contamination. These are not emergency filters but fixed installation home/business/school/community water purification systems, so local conditions can be determined in advance.
tanzania  nanofilter  water  purification  filter  business  materials  science  research  technology  nanotechnology  nanoparticle  tailored  customized  custom  HydrAid  biosand  Delicious 
june 2015 by asteroza
Passive radiative cooling below ambient air temperature under direct sunlight : Nature : Nature Publishing Group
Interesting mixed material which re-emits heat at atmospheric IR transparency windows, effectively becoming a passive cooler. So an external radiator on earth covered with this paint can get pretty cool.
photonic  radiative  cooling  solar  radiator  mirror  selective  thermal  emitter  materials  science  research  technology  passive  hafnium  silicon  dioxide  tuned  cooler  nanoparticle  layer  IR  infrared  transparency  window  atmospheric  green  paint  surface  treatment  Delicious 
december 2014 by asteroza
eLux Medical NanoLipo
Still in animal trials, using gold nanoparticle injections that resonate when exposed to near-IR, one can melt/liquify fat directly without excessively damaging surrounding tissue, then suck that out via conventional liposuction needle. This would be lower temperature than existing external laser liposuction, where they try to liquify near surface fat cells with a near-IR laser array held against the skin.
health  medicine  cosmetic  surgery  gold  nanoparticle  IR  fat  melting  liposuction  NanoLipo  Delicious 
june 2014 by asteroza
Neutron Absorber Material | Holtec International
New nanoparticle based metal matrix composite basket for spent fuel rods, with such high thermal conductivity that spent fuel can be stuffed into a dry cask after only 3 years in a cooling pond.
Metamic  Metamic-HT  high  temperature  aluminum  boron  carbide  metal  matrix  composite  neutron  absorber  spent  fuel  rod  basket  dry  cask  waste  storage  nuclear  materials  science  research  technology  nanotechnology  powder  metallurgy  nanoparticle  alumina  alloy  dispersoid  Delicious 
december 2013 by asteroza
Could the humble sea urchin hold the key to carbon capture? - Press Office - Newcastle University
So they obviously patented this but, if they plan on bubbling flue gases through a water column (which has a big energy cost due to increased back pressure on the power production system), one problem is sourcing the dissolved calcium for the water column, and the other is the catalyst recover. Nickel nanoparticles seem to be recoverable via magnetic separation, but during the calcium carbonate production process, wouldn't the catalysts get trapped in the carbonate itself, requiring you to ball mill grind the carbonate outputs of the system to recover the catalyst? The other problem is getting that calcium into the water column itself. Easy way would be relatively clean seawater, and keep cycling in fresh seawater into the column as the calcium gets depleted. But inland, you won't have a convenient body of water with usable calcium content. So how would you go about seeding the column then?
water  calcium  carbonate  nanoparticle  carbon  column  capture  nickel  mineralization  CO2  CCS  Delicious 
february 2013 by asteroza
Nickel nanoparticles catalyse reversible hydration of carbon dioxide for mineralization carbon capture and storage - Catalysis Science & Technology (RSC Publishing)
Interesting research related to carbon capture. Scientists set out to better understand carbonic acid creation, and needed a catalyst for speeding up experiments. Chance discovery of high surface area nickel on Sea Urchin exoskeletons led to the discovery that nickel nanoparticles catalyze the formation of calcium carbonate from dissolved CO2 and calcium in water, mimicking a carbonic anhydrase enzyme but without the pH limitations . It appears the process leads to direct calcium carbonate, without much carbonic acid byproducts. It may be possible to do this via a seawater column bubbling flue gas with suspended nickel nanoparticles, since the nickel particles can be separated magnetically (though wouldn't that require grinding the recovered carbonate?)
calcium  water  technology  CO2  research  science  carbonate  materials  nanoparticle  carbon  capture  nickel  column  mineralization  CCS  catalyst  nanotechnology  Delicious 
february 2013 by asteroza
Keeping ship hulls free of marine organisms - Research News December 2012 - Topic 3
Interesting antifouling setup using variable low power current electrolysis of seawater via conductive hull paint to create changing local pH values, which annoys biofouling marine organisms enough to keep them from attaching themselves. Really useful for fiberglass yachts potentially, which frequently feature solar panels, though how that will change the corrosion aspects of other metal parts like propellers will be an issue.
balance  pH  coating  surface  technology  boat  yacht  ship  marine  paint  hull  nanoparticle  nanocomposite  conductive  biofouling  antifouling  electrochemical  Fraunhofer  Delicious 
december 2012 by asteroza
Solar Vapor Generation Enabled by Nanoparticles - ACS Nano (ACS Publications)
Really weird solar steam generation using wideband visible light absorbing nanoparticles suspended in water. Apparently, you get local vapor production on the surface of the nanoparticle. Because of the small surface area relative to the energy involved, and the size of the particle being below the wavelength, it causes unusual steam generation. It seems it's possible to create steam without heating the entirety of the liquid volume.
vapor  nanotechnology  technology  research  science  materials  steam  solar  nanoparticle  carbon  metal  Delicious 
november 2012 by asteroza
Phys. Rev. Lett. 109, 126806 (2012): Cloaking Core-Shell Nanoparticles from Conducting Electrons in Solids
Could this potentially be used as a high temperature superconductor alternative (or at least a super high conductivity material with very low resistance), since if you trick the electrons into believing that there is nothing hindering them, there might be no resistance?
electricity  nanotechnology  technology  research  science  naterials  effect  cloaking  electron  nanoparticle  shell  core  Delicious 
october 2012 by asteroza
Spray On Kit
Apparently this is the real deal, a nanoparticle/nanocapacitor suspension paint. A spray on paint kit to create either a conformal antenna or to enhance an existing antenna. They painted a tree and were able to send VHF signals 14 miles. Boosting existing antennas is anywhere from 10% to 40% (40% was 20dBm for an iPhone 3 test). The videos also talk about potential uses in other EMF applications, such as (?AC) electric motor windings.
surface  aftermarket  spray  coating  antenna  booster  paint  conformal  military  communications  technology  iPhone  kit  nanoparticle  particle  suspension  colloid  capacitor  nanocapacitor  materials  science  research  nanotechnology  Delicious 
february 2012 by asteroza
Copper hexacyanoferrate battery electrodes with long cycle life and high power : Nature Communications : Nature Publishing Group
High cycle durability cathode material, if matched with a hydrated potassium ion aqueous electrolyte. Still searching for a suitable anode though. May be suitable for grid energy storage due to ease of manufacturing and cost.
copper  hexacyanoferrate  crystalline  crystal  nanoparticle  nanocrystal  high  voltage  cathode  electrode  materials  science  research  technology  nanotechnology  energy  storage  battery  chemistry  Delicious 
december 2011 by asteroza
tripleO · Home
Basically, you treat a surface with a light acid wash to clean pores and microfeatures on a surface and positively charge them, then put the tripleO paint on, where the nanoparticle emulsion is negatively charged, causing the nanoparticle to seek and bond to the microfeatures, effectively filling them and making the overall surface smoother, providing a drag reduction. Apparently for EasyJet, they may be getting up to 2% drag reduction on their airplanes for almost no weight gain using this paint.
tripleO  surface  coating  drag  reduction  nanoparticle  emulsion  protectant  materials  science  research  technology  nanotechnology  Delicious 
february 2011 by asteroza
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