ScienceDaily: Engineering and Construction News |
- 'Microbe sniffer' could point way to next-generation bio-refining
- Study helps unlock mystery of high-temp superconductors
- Smashing new look at nanoribbons: Researchers unzip nanotubes by shooting them at 15,000 mph
- Green spaces in cities may increase erosion of building materials such as stone, concrete and steel
- Bio-printing transplantable tissues, organs: Another step closer
- Quantum dots created with single-atom precision
- Silver in the washing machine: Nano-coatings release almost no nano-particles, experts say
- Single-pixel 'multiplex' captures elusive terahertz images
| 'Microbe sniffer' could point way to next-generation bio-refining Posted: 30 Jun 2014 01:40 PM PDT A new biosensor could help optimize bio-refining processes that produce fuels, fine chemicals and advanced materials. It works by sniffing out naturally occurring bacterial networks that are genetically wired to break down wood polymer. "Nature has already invented microbial processes to degrade lignin--the tough polymer in wood and plant biomass that currently stymies industrial bio-refining," says a microbiologist researcher.  |
| Study helps unlock mystery of high-temp superconductors Posted: 30 Jun 2014 01:39 PM PDT Physicists say they have unlocked one key mystery surrounding high-temperature superconductivity. Their research found a remarkable phenomenon in copper-oxide (cuprate) high-temperature superconductors.  |
| Smashing new look at nanoribbons: Researchers unzip nanotubes by shooting them at 15,000 mph Posted: 30 Jun 2014 08:41 AM PDT Scientists have discovered they can unzip nanotubes into graphene nanoribbons without chemicals by firing them at a target at 15,000 miles per hour. Materials scientists discovered that nanotubes that hit a target end first turn into mostly ragged clumps of atoms. But nanotubes that happen to broadside the target unzip into handy ribbons that can be used in composite materials for strength and applications that take advantage of their desirable electrical properties.  |
| Green spaces in cities may increase erosion of building materials such as stone, concrete and steel Posted: 30 Jun 2014 07:31 AM PDT Green spaces in towns and cities need extra consideration as they may be damaging buildings in the area, according to new research. When organic chemicals from trees and vegetation mix with air pollutants the resulting corrosive gas can increase the erosion of building materials, including stone, concrete and steel.  |
| Bio-printing transplantable tissues, organs: Another step closer Posted: 30 Jun 2014 07:31 AM PDT Researchers have made a giant leap towards the goal of 'bio-printing' transplantable tissues and organs for people affected by major diseases and trauma injuries, a new study reports. Scientists have bio-printed artificial vascular networks mimicking the body's circulatory system that are necessary for growing large complex tissues.  |
| Quantum dots created with single-atom precision Posted: 30 Jun 2014 06:45 AM PDT Physicists have used a scanning tunneling microscope to create quantum dots with identical, deterministic sizes. The perfect reproducibility of these dots opens the door to quantum dot architectures completely free of uncontrolled variations, an important goal for technologies from nanophotonics to quantum information processing as well as for fundamental studies.  |
| Silver in the washing machine: Nano-coatings release almost no nano-particles, experts say Posted: 30 Jun 2014 06:33 AM PDT The antibacterial properties of silver-coated textiles are popular in the fields of sport and medicine. Scientists have now investigated how different silver coatings behave in the washing machine, and they have discovered something important: textiles with nano-coatings release fewer nano-particles into the washing water than those with normal coatings.  |
| Single-pixel 'multiplex' captures elusive terahertz images Posted: 29 Jun 2014 11:20 AM PDT In an effort that advances attempts to generate images using terahertz light waves, researchers report that they've developing a single-pixel 'multiplex' device that uses boutique metamaterials to capture images in the terahertz realm, which scientists say could play a crucial role in future medical and security imaging initiatives.  |
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