nanoparticles

Plants can accumulate nanoparticles in tissues

harminka — Wed, 12 Nov 2008 08:00:02 -0600

Researchers at the University of Delaware have provided what is believed to be the first experimental evidence that plants can take up nanoparticles and accumulate them in their tissues.

Engineering Nanoparticles for Maximum Strength

harminka — Tue, 21 Oct 2008 07:10:34 -0500

Because they are riddled with defects, bulk crystalline materials never achieve their ideal strength; nanocrystals, on the other hand, are so small there’s no room for defects. (“Nano” is short for nanometer, a billionth of a meter.)

Gold nanostars outshine the competition

harminka — Thu, 16 Oct 2008 05:47:59 -0500

Novel nanoparticles being tested at the National Institute of Standards and Technology (NIST) have researchers seeing stars. In a recent paper,* NIST scientists used surface-enhanced Raman spectroscopy (SERS) to demonstrate that gold nanostars exhibit optical qualities that make them superior for chemical and biological sensing and imaging.

Use of nanoparticles to deliver treatment for brain, spinal cord injuries

harminka — Thu, 02 Oct 2008 05:26:29 -0500

Purdue University researchers have developed a method of using nanoparticles to deliver treatments to injured brain and spinal cord cells.

Gold, distribute environmentally friendly nanoparticles

harminka — Sat, 27 Sep 2008 04:50:33 -0500

Gold nanoparticles are everywhere. They are used in cancer treatments, automobile sensors, cell phones, blood sugar monitors and hydrogen gas production. However, until recently, scientists couldn't create the nanoparticles without producing synthetic chemicals that had negative impacts on the environment.

Nanoparticles can break on through

harminka — Wed, 17 Sep 2008 07:07:16 -0500

In a finding that could speed the use of sensors or barcodes at the nanoscale, North Carolina State University engineers have shown that certain types of tiny organic particles, when heated to the proper temperature, bob to the surface of a layer of a thin polymer film and then can reversibly recede below the surface when heated a second time.

Production of gold nanorods without the use of cytotoxic additives

harminka — Mon, 08 Sep 2008 09:14:09 -0500

Gold nanoparticles are under consideration for a number of biomedical applications, such as tumor treatment. A German-American research team at Carnegie Mellon University in Pittsburgh, Hunter College in New York, and the RWTH Aachen has now developed a new method for the production of nanoscopic gold rods.

New Pyrex nanoparticle

harminka — Mon, 08 Sep 2008 03:24:28 -0500

Researchers in Switzerland have developed a new method to fabricate borosilicate glass nanoparticles. Used in microfluidic systems, these "Pyrex"-like nanoparticles are more stable when subjected to temperature fluctuations and harsh chemical environments than currently used nanoparticles made of polymers or silica glass.

New disease-fighting nanoparticles look like miniature pastries

harminka — Thu, 31 Jul 2008 00:51:28 -0500

Ultra-miniature bialy-shaped particles — called nanobialys because they resemble tiny versions of the flat, onion-topped rolls popular in New York City — could soon be carrying medicinal compounds through patients' bloodstreams to tumors or atherosclerotic plaques.

Nanoparticle research points to energy savings

harminka — Thu, 24 Jul 2008 08:38:30 -0500

Adding just the right dash of nanoparticles to standard mixes of lubricants and refrigerants could yield the equivalent of an energy-saving chill pill for factories, hospitals, ships, and others with large cooling systems, suggest the latest results from National Institute of Standards and Technology (NIST) research that is pursuing promising formulations.

Quantum dots can penetrate skin through minor abrasions

harminka — Thu, 03 Jul 2008 08:12:52 -0500

Researchers at North Carolina State University have found that quantum dot nanoparticles can penetrate the skin if there is an abrasion, providing insight into potential workplace concerns for healthcare workers or individuals involved in the manufacturing of quantum dots or doing research on potential biomedical applications of the tiny nanoparticles.

New ORNL process brings nanoparticles into focus

harminka — Tue, 24 Jun 2008 03:54:25 -0500

Scientists can study the biological impacts of engineered nanomaterials on cells within the body with greater resolution than ever because of a procedure developed by researchers at the Department of Energy's Oak Ridge National Laboratory.