Nanomechanical sensors detect cancer from breath
An array of functionalized membrane-type surface stress sensors distinguishes cancer patients from healthy people through a signature response to breath samples.
Apr 23rd, 2014
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Nanotechnology News – Latest Headlines
Disorder on the nanoscale may be responsible for solar-cell efficiency
In the past few years, perovskite solar cells have made large leaps forward in efficiency, recently achieving energy conversion with up to 16 percent efficiency. These simple and promising devices are easy enough to make and are made up of earth abundant materials, but little work has been done to explore their atomic makeup.
Apr 23rd, 2014
Read moreGold nanoparticles help target, quantify breast cancer gene segments in a living cell
Purdue University researchers have developed a way to detect and measure cancer levels in a living cell by using gold nanoparticles with tails of synthetic DNA.
Apr 23rd, 2014
Read moreResearchers make major advances in dye sensitized solar cells
Two groups of researchers have recently advanced the field of solar cells with a cheaper and efficient replacement for platinum and better synthesis of zinc oxide.
Apr 23rd, 2014
Read morePETA science consortium to present hazard testing strategy at nanotoxicology meeting
PETA International Science Consortium will present a non-animal tiered-testing strategy for nanomaterial hazard assessment at the 7th International Nanotoxicology Congress being held in Antalya, Turkey on Apr. 23-26, 2014. The proposed strategy will generate meaningful information on nanomaterial properties and their interaction with biological systems.
Apr 22nd, 2014
Read moreHigh-performance, low-cost paper ultracapacitors built with graphene and carbon nanotubes
Future devices based on technology could bridge gap between batteries and conventional capacitors in portable electronics and hybrid electric vehicles.
Apr 22nd, 2014
Read moreQuantum simulators developed to study inaccessible physical systems
Quantum simulators recreate the behaviour on a microscopic scale of biological and quantum systems and even of particles moving at the speed of light. The exact knowledge of these systems will lead to applications ranging from more efficient photovoltaic cells to more specific drugs. Researchers are working on the design of several of these quantum simulators so they can study the dynamics of complex physical systems.
Apr 22nd, 2014
Read moreNanotechnology researchers demonstrate potential of RNA as heat-resistant polymer material for nanoarchitectures
A team of nanotechnology researchers at the University of Kentucky has discovered new methods to build heat resistant nanostructures and arrays using RNA.
Apr 22nd, 2014
Read moreNanomaterial outsmarts ions
Ions are an essential tool in chip manufacturing, but these electrically charged atoms can also be used to produce nano-sieves with homogeneously distributed pores. A particularly large number of electrons, however, must be removed from the atoms for this purpose. Such highly charged ions either lose a surprisingly large amount of energy or almost no energy at all as they pass through a membrane that measures merely one nanometer in thickness. This discovery is an important step towards developing novel types of electronic components made of graphene.
Apr 22nd, 2014
Read moreLike a hall of mirrors, nanostructures trap photons inside ultrathin solar cells (w/videos)
In the quest to make sun power more competitive, researchers are designing ultrathin solar cells that cut material costs. At the same time they're keeping these thin cells efficient by sculpting their surfaces with photovoltaic nanostructures that behave like a molecular hall of mirrors.
Apr 22nd, 2014
Read moreAchieving higher solar-cell efficiency with zinc-oxide coating
Engineering researchers have achieved the highest efficiency ever in a 9 millimeter-squared solar cell made of gallium arsenide. After coating the cufflink-sized cells with a thin layer of zinc oxide, the research team reached a conversion efficiency of 14 percent.
Apr 22nd, 2014
Read moreCloaked DNA nanodevices survive pilot mission (w/video)
It's a familiar trope in science fiction: In enemy territory, activate your cloaking device. And real-world viruses use similar tactics to make themselves invisible to the immune system. Now scientists have mimicked these viral tactics to build the first DNA nanodevices that survive the body's immune defenses.
Apr 22nd, 2014
Read moreIon beams as nano shotguns
A bullet fired through a block of wood will slow down. In a similar way, ions are decelerated when they pass through a solid material: the thicker the material, the larger the energy loss will be. However, this picture breaks down in ultra-thin target materials, which only consist of a few layers of atoms.
Apr 22nd, 2014
Read moreA new approach to nanoengineering the materials of the future
Researchers have synthesized a new class of macromolecules that self-assemble into various ordered structures with feature sizes smaller than 10 nanometers. Called 'giant surfactants', these large molecules mimic the structural features of small surfactants but have been transformed into functional molecular nanoparticles by being 'clicked' with polymer chains. The resulting materials are unique because they bridge the gap between small molecule surfactants and traditional block copolymers and thus possess an interesting duality in their self-assembly behaviors.
Apr 22nd, 2014
Read moreGrant to investigate how carbon nanotubes in everyday products might affect human health
Researchers at UT Dallas recently received a $459,000, three-year grant from the National Institute of Environmental Health Sciences, part of the National Institutes of Health, to track how multi-walled carbon nanotubes interact with human cells.
Apr 22nd, 2014
Read moreNon-enzyme nanotechnology sensor to detect blood sugar
Carbon nanotubes and iron oxide nanoparticles have been used in the production of the sensor. The sensor is non-enzyme type and it has high repeatability, stability and selectivity.
Apr 22nd, 2014
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