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Latest Nanoparticle Stories

2013-02-18 13:13:21

Artificial atoms and bonds provide a new set of building blocks for future materials Northwestern University's Chad A. Mirkin, a world-renowned leader in nanotechnology research and its application, has developed a completely new set of building blocks that is based on nanoparticles and DNA. Using these tools, scientists will be able to build -- from the bottom up, just as nature does -- new and useful structures. Mirkin will discuss his research in a session titled "Nucleic...

2013-02-12 17:11:39

New design uses silicon nanoparticles to improve capacity and recharge more quickly Researchers at USC have developed a new lithium-ion battery design that uses porous silicon nanoparticles in place of the traditional graphite anodes to provide superior performance. The new batteries–which could be used in anything from cell phones to hybrid cars–hold three times as much energy as comparable graphite-based designs and recharge within 10 minutes. The design, currently under a...

2013-02-06 16:11:20

Two of the most widely used nanoparticles (NPs) accumulate in soybeans – second only to corn as a key food crop in the United States – in ways previously shown to have the potential to adversely affect the crop yields and nutritional quality, a new study has found. It appears in the journal ACS Nano. Jorge L. Gardea-Torresdey and colleagues cite rapid increases in commercial and industrial uses of NPs, the building blocks of a nanotechnology industry projected to put $1...

2013-02-06 13:00:54

Metals contained in nanoparticles can enter into the food chain Scientists have, for the first time, traced the nanoparticles taken up from the soil by crop plants and analyzed the chemical states of their metallic elements. Zinc was shown to dissolve and accumulate throughout the plants, whereas the element cerium did not dissolve into plant tissue. The results contribute to the controversial debate on plant toxicity of nanoparticles and whether engineered nanoparticles can enter into the...

2013-01-28 14:16:45

Every day scientists learn more about how the world works at the smallest scales. While this knowledge has the potential to help others, it's possible that the same discoveries can also be used in ways that cause widespread harm. A new article in the journal Nanomedicine, born out of a Federal Bureau of Investigation workshop held at the University of Notre Dame in September 2012, tackles this complex "dual-use" aspect of nanotechnology research. "The rapid pace of breakthroughs in...

2013-01-28 12:10:03

Towards a new generation of optoelectronic nanomaterials By achieving the synthesis of a novel nanohybrid structure by means of the pulsed laser ablation (PLA) technique, Professor My Ali El Khakani and his team paved the way for a new generation of optoelectronic materials. The combination of carbon nanotubes and lead sulfide (PbS) nanoparticles was performed using an effective and relatively simple process that offers considerable latitude for creating other nanohybrids for a variety of...

Move Over Enterprise, Scientists Have Their Own Tractor Beam Now
2013-01-28 04:21:30

redOrbit Staff & Wire Reports - Your Universe Online A small scale version of the “tractor beam” used by the starship Enterprise to tow other vessels on the television show Star Trek has been crafted by engineers from Scotland and the Czech Republic. The device, which is detailed in the latest edition of the journal Nature Photonics, was built by scientists at the University of St. Andrews and the Institute of Scientific Instruments (ISI) and allows a beam of light to...

Chemical Interactions With Cell Membranes Can Be Changed With Modifications Of A Nanoparticle
2013-01-24 14:42:12

Syracuse University Researchers at Syracuse University´s Department of Biomedical and Chemical Engineering at L.C. Smith College of Engineering and Computer Science are studying the toxicity of commonly used nanoparticles, particles up to one million times smaller than a millimeter that could potentially penetrate and damage cell membranes. In a recent article published along with cover art in the leading journal Langmuir entitled “Effects of nanoparticle charge and shape...


Word of the Day
call-note
  • The call or cry of a bird or other animal to its mate or its young.
'Call-note' is newer than 'bird-call,' which originally referred to 'an instrument for imitating the note of birds' but now also refers to 'the song or cry of a bird.'
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