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Science

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Nanotechnology, Environment, Human Health

When It Comes to Risk, Not All Nanomaterials Are Created Equal

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The size, type, and dispersion of nanomaterials could all play a role in how these materials impact human health and the environment, according to two groups of researchers at Rensselaer Polytechnic Institute. In new studies, the teams found that while carbon nanotubes inhibited growth in mammalian cells, they sustained the growth of commonly occurring bacteria.

Science

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Nanotechnology, LED, Lighting, Electrodes, Carbon, Nanotubes, Magnetic, Nanowires

ORNL Helps Develop Next-generation LEDs

Nanotechnology may unlock the secret for creating highly efficient next-generation LED lighting systems, and exploring its potential is the aim of several projects centered at Oak Ridge National Laboratory.

Science

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Diabetes, Biosensors, Glucose, Nanotechnology, Biotechnology, Nanotubes

Novel Biosensor Capable of Almost Real-time Detection of Glucose

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Researchers at the University of Arkansas have fabricated and tested a novel biosensor that detects glucose close to real time and with much greater sensitivity than other comparable, biocompatible sensors.

Science

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Nanotechnology

Controlling the Movement of Water Through Nanotube Membranes

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By fusing wet and dry nanotechnologies, researchers at Rensselaer Polytechnic Institute have found a way to control the flow of water through carbon nanotube membranes with an unprecedented level of precision. The research could inspire technologies designed to transform salt water into pure drinking water almost instantly, or to immediately separate a specific strand of DNA from the biological jumble.

Science

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Nanotechnology, Meets, Biology

Nanotechnology Meets Biology and DNA Finds Its Groove

The object of fascination for most is the DNA molecule. But in solution, DNA, the genetic material that hold the detailed instructions for virtually all life, is a twisted knot, looking more like a battered ball of yarn than the famous double helix. To study it, scientists generally are forced to work with collections of molecules floating in solution, and there is no easy way to precisely single out individual molecules for study.

Science

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Nanotechnology, Nanofibers, Fiber, Technion, Israel, Polymer, Strong, Fabric, Mechanical, Engineering, Zussman, Gendelman, Russell, Berrie, Nanotechnology, Institute

Mighty Nanofibers Could Mean Stronger, Lighter Materials

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Bigger may be better, but tinier is stronger. So say scientists at the Technion-Israel Institute of Technology, who have shown that tiny polymer nanofibers become much stronger when their diameters shrink below a certain size. Their research could make possible stronger fabrics that use less material.

Science

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Science, Engineering, Health

Researchers Probe Health and Safety Impacts of Nanotechnology

University of Florida engineering student Maria Palazuelos is working on nanotechnology, but she's not seeking a better sunscreen, tougher golf club or other product "” the focus of many engineers in the field.

Medicine

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Nanoparticles, Medicine, drug, Delivery, Mucus

Coated Nanoparticles Solve Sticky Drug-delivery Problem

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The layers of mucus that protect sensitive tissue throughout the body have an undesirable side effect: they can also keep helpful medications away. To overcome this hurdle, researchers have found a way to coat nanoparticles with a chemical that helps them slip through this sticky barrier.

Science

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Nanomaterials, Nanotechnology, Environment, Pollution, Nanotubes, Chemistry

Nanomaterials Vulnerable to Dispersal in Natural Environment

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Laboratory experiments with a type of nanomaterial that has great promise for industrial use show significant potential for dispersal in aquatic environments -- especially when natural organic materials are present, according to research led by the Georgia Institute of Technology.

Science

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Perchlorate, Nitrates, Anions, Chemistry, Nanotechnology, Remediation, Pollution, Oregon, Pacific Northwest Laboratory

A Nano Design Adjustment May Help Find, Clear Some Water Contaminants

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Experiments designed to test discrepancies in theoretical computational chemistry have turned up a barely two-angstrom difference that may lead to a new approach to locate and remove dangerous toxins such as perchlorate and nitrates from the environment.







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