12 Current news about the topic polystyrene


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What the Smell Can Tell

The degradation status of modern polymeric museum artifacts can be classified by their smell


Breath analysis in disease diagnostics is a promising research field, and the advances in instrumentation allows the accurate detection of metabolites. But not only the health status of patients, but also the preservation status of museum artifacts could be monitored. Heritage science researchers ...


Now in 3-D: Video of virus-sized particle trying to enter cell


Tiny and swift, viruses are hard to capture on video. Now researchers at Princeton University have achieved an unprecedented look at a virus-like particle as it tries to break into and infect a cell. The technique they developed could help scientists learn more about how to deliver drugs via ...


Smartphone 'microscope' can detect a single virus

Your smartphone now can see what the naked eye cannot: A single virus and bits of material less than one-thousandth of the width of a human hair.


Aydogan Ozcan, a professor of electrical engineering and bioengineering at the UCLA Henry Samueli School of Engineering and Applied Science, and his team have created a portable smartphone attachment that can be used to perform sophisticated field testing to detect viruses and bacteria without ...


Icy exposure creates armored polymer high tech foams


Chemists and engineers at the University of Warwick have found that exposing particular mixtures of polymer particles and other materials to sudden freeze-drying can create a high-tech armored foam that could be used for a number of purposes, including a new range of low power room temperature ...


ECHA recommends strict control for seven substances of very high concern


The European Chemicals Agency recommends that seven chemical substances of very high concern should not be used without specific authorisation. Three of the recommended substances are classified as toxic to reproduction, one as carcinogenic and three fulfil the criteria for being persistent, ...


Using light to move and trap DNA molecules


A major goal of nanotechnology research is to create a "lab on a chip," in which a tiny biological sample would be carried through microscopic channels for processing. This could make possible portable, fast-acting detectors for disease organisms or food-borne pathogens, rapid DNA sequencing and ...


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Spectral imager for detecting bruised fruit


The apricots on display in the supermarket look fresh when they have just arrived, but some will have developed bruises by the next day. Hyperspectral imaging allows these fruit to be identified in advance, but is expensive. Now there is a cheaper version of the technique. Peaches, apricots and ...


MIT gel changes color on demand

Material could lead to fast, inexpensive sensors


MIT researchers have created a new structured gel that can rapidly change color in response to a variety of stimuli, including temperature, pressure, salt concentration and humidity. Among other applications, the structured gel could be used as a fast and inexpensive chemical sensor, says Edwin ...


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New DNA-Based Technique For Assembly of Nano- and Micro-sized Particles


Scientists at the U.S. Department of Energy's Brookhaven National Laboratory have developed a new method for controlling the self-assembly of nanometer and micrometer-sized particles. The method, based on designed DNA shells that coat a particle's surface, can be used to manipulate the structure ...


Side-to-side shaking of nanoresonators throws off impurities


Tiny vibrating silicon resonators are of intense interest in nanotechnology circles for their potential ability to detect bacteria, viruses, DNA and other biological molecules. Cornell researchers have demonstrated a new way to make these resonators vibrate "in the plane" - that is, side to side ...


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