News tagged with porous silicon
Coming Soon: Improved Lithium Ion Batteries?
Nov 19, 2008 |
4.6 / 5 (33) |
1
(PhysOrg.com) -- Rechargeable lithium ion batteries provide portable devices that require a lot of energy, such as mobile telephones, digital cameras, and notebook computers, with power. However, their capacity, and thus ...
Search results for porous silicon
Nanoscale Cubes and Spheres
Nanotechnology / Nanomaterials
Jan 03, 2007 |
3.9 / 5 (13) |
0
Porous nano-objects with defined sizes and structures are particularly interesting, for example, as capsules for enzymes, a means of transport for pharmaceutical agents, or building blocks for larger nanostructures.
Scientists synthesize graphene-like material: Polymer with honeycomb structure
Nanotechnology / Nanomaterials
Nov 19, 2009 |
4.4 / 5 (12) |
1
Two-dimensional carbon layers, so-called graphenes, are regarded as a possible substitute for silicon in the semiconductor industry. The electronic properties of these layers can be varied by "building in" ...
In 'novel playground,' metals are formed into porous nanostructures
Nanotechnology / Nanomaterials
Jun 27, 2008 |
4.9 / 5 (21) |
2
For 5,000 years or so, the only way to shape metal has been to "heat and beat." Even in modern nanotechnology, working with metals involves carving with electron beams or etching with acid.
Increasing Electric Car Battery Performance
Nanotechnology / Nanomaterials
Sep 23, 2009 |
4.5 / 5 (20) |
10
(PhysOrg.com) -- Researchers have found that by replacing conventional graphite electrodes with silicon nanotube electrodes, lithium-ion batteries can store 10 times more charge.
Researchers form metal nanoparticles into porous structures
Nanotechnology / Nanomaterials
Jun 27, 2008 |
4.3 / 5 (10) |
1
For 5,000 years or so, the only way to shape metal has been to "heat and beat." Even in modern nanotechnology, working with metals involves carving with electron beams or etching with acid.
Fast Protease Assay Using Nanoengineered Photonic Crystals
Nanotechnology / Nanomaterials
Aug 07, 2006 |
4 / 5 (5) |
0
Proteases are a family of enzymes that play a central role in cellular metabolism and are key players in many diseases, including cancer. Conventional assays for protease activity are often slow – most take up to 24 hours ...
Safer nanoparticles spotlight tumors, deliver drugs
Nanotechnology / Bio & Medicine
Feb 22, 2009 |
4.8 / 5 (6) |
1
(PhysOrg.com) -- Small is promising when it comes to illuminating tiny tumors or precisely delivering drugs, but many worry about the safety of nano-scale materials. Now a team of scientists has created miniscule ...
Breakthrough in efficiency for dye-sensitized solar cells
Jun 29, 2008 |
4.8 / 5 (50) |
0
In a paper published in the journal Nature Materials, EPFL professor Michael Graetzel, Shaik Zakeeruddin and colleagues from the Changchun Institute of Applied Chemistry at the Chinese Academy of Sciences have achieved a reco ...
Microscopic sea creatures provide foundation for gas sensors, other devices
Mar 09, 2007 |
4.2 / 5 (13) |
0
The three-dimensional shells of tiny ocean creatures could provide the foundation for novel electronic devices, including gas sensors able to detect pollution faster and more efficiently than conventional devices.
Time Lens Speeds Up Optical Data Transmission
Sep 28, 2009 |
4.8 / 5 (15) |
7
(PhysOrg.com) -- Researchers at Cornell University have developed a device called a "time lens" which is a silicon device for speeding up optical data. The basic components of this device are an optical-fiber ...
List of search results for porous silicon
