News tagged with titanium
Porphyrin Dimers Increase Efficiency of Dye-Sensitized Solar Cells
Oct 30, 2009 |
4.5 / 5 (12) |
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(PhysOrg.com) -- Porphyrins are most commonly thought of as the pigment in red blood cells, but now scientists have found that porphyrins can also be used to increase the efficiency of an inexpensive type ...
Easing Atmospheric CO2 Levels Using Nanotubes and Sunlight
Nanotechnology / Nanomaterials
Feb 16, 2009 |
4 / 5 (23) |
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(PhysOrg.com) -- Researchers at The Pennsylvania State University have determined a way to use arrays of nanotubes in a solar-based process to convert carbon dioxide and water into methane and other hydrocarbon ...
Nanoparticles used in common household items caused genetic damage in mice
Nanotechnology / Bio & Medicine
Nov 16, 2009 |
4.8 / 5 (24) |
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Titanium dioxide (TiO2) nanoparticles, found in everything from cosmetics to sunscreen to paint to vitamins, caused systemic genetic damage in mice, according to a comprehensive study conducted by researchers at UCLA's Jonsson ...
Argonne 'homegrown' hybrid solar cell aims for low-cost power
Nanotechnology / Nanomaterials
Nov 10, 2009 |
4.3 / 5 (12) |
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(PhysOrg.com) -- Scientists at the U.S. Department of Energy’s (DOE) Argonne National Laboratory have refined a technique to manufacture solar cells by creating tubes of semiconducting material and then "growing" ...
Carbonized TiO2 nanotubes with semimetallic properties increase the efficiency of methanol fuel cells
Nanotechnology / Nanomaterials
Sep 08, 2009 |
4.5 / 5 (2) |
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(PhysOrg.com) -- Mention of nanotubes usually means carbon nanotubes. But not all tiny tubes are made of carbon. For example, layers made of nanoscopic titanium dioxide have proven to be useful materials for biotechnology, ...
Building better bone replacements with bacteria
Sep 07, 2009 |
4.3 / 5 (3) |
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Bacteria that manufacture hydroxyapatite (HA) could be used to make stronger, more durable bone implants. Professor Lynne Macaskie from the University of Birmingham this week (7-10 September) presented work to the Society ...
Nanotech particles affect brain development in mice
Nanotechnology / Bio & Medicine
Jul 28, 2009 |
4.6 / 5 (7) |
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Maternal exposure to nanoparticles of titanium dioxide (TiO2) affects the expression of genes related to the central nervous system in developing mice. Researchers writing in BioMed Central's open access journal Particle an ...
Nano-sandwich Triggers Novel Electron Behavior
May 04, 2009 |
3.9 / 5 (14) |
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(PhysOrg.com) -- A material just six atoms thick in which electrons appear to be guided by conflicting laws of physics depending on their direction of travel has been discovered by a team of physicists at the University of ...
Discovery of an Unexpected Boost for Solar Water-Splitting Cells
Nanotechnology / Nanomaterials
Apr 22, 2009 |
5 / 5 (22) |
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(PhysOrg.com) -- A research team from Northeastern University and the National Institute of Standards and Technology has discovered, serendipitously, that a residue of a process used to build arrays of titania ...
Dancing 'adatoms' help chemists understand how water molecules split
Mar 16, 2009 |
4.4 / 5 (8) |
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Single oxygen atoms dancing on a metal oxide slab, glowing brighter here and dimmer there, have helped chemists better understand how water splits into oxygen and hydrogen. In the process, the scientists have visualized a ...
Engineers develop novel method for accelerated bone growth
Nanotechnology / Bio & Medicine
Jan 30, 2009 |
4.5 / 5 (8) |
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Engineers at the University of California at San Diego have come up with a way to help accelerate bone growth through the use of nanotubes and stem cells. This new finding could lead to quicker and better recovery, for example, ...
Santa's Sleigh: Researcher Explains Science Behind St. Nick's Christmas Magic
15 hours ago |
5 / 5 (7) |
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(PhysOrg.com) -- Santa skeptics have long considered St. Nick’s ability to deliver toys to the world’s good girls and boys in the course of one night a scientific impossibility. But new research shows that ...
Replacing Platinum in Fuel Cell Technology
Oct 20, 2009 |
2.8 / 5 (5) |
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(PhysOrg.com) -- One of the biggest hindrances to the development of fuel cell technology is its cost. In order to work properly, polymer electrolyte fuel cells require a catalyst. So far, though, the most ...
Titanium Dioxide Nanoparticles Catalyze Brain Tumor Death
Nanotechnology / Bio & Medicine
Sep 24, 2009 |
5 / 5 (5) |
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(PhysOrg.com) -- Scientists from the U.S. Department of Energy’s (DOE) Argonne National Laboratory and the University of Chicago Medical Center’s Brain Tumor Center have developed a way to target brain cancer cells using ...
Truth Is Stranger Than Science: Discovering true properties of metal oxides
Sep 17, 2009 |
5 / 5 (4) |
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(PhysOrg.com) -- To successfully compete in a global marketplace, manufacturers continually search for better materials: faster drying and less hazardous paint, longer-lasting sunscreen, and faster computers. ...
