nanotechnology.com articles ~~ 03-10-2008 thru 03-22-2008 MOST RECENT NEWS
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2008-03-22 Nanotube photovoltaics under scrutiny 2008-03-22 Carbon nanotubes beat copper nanowire for next-gen transistors 2008-03-22 Scripps Scientists Spin Out Nanotech Imaging Business 2008-03-22 NCSU wins nanotechnology grant 2008-03-22 Nanotechnology makes clean, efficient conductor 2008-03-21 TTNA joint briefing with Aussie Nanotechnology alliance 2008-03-21 Nanotube photovoltaics under scrutiny 2008-03-21 Novel nanoparticle synthesis techniques could lead to growing functional devices out of solution 2008-03-21 Biohybrid nanocontainers with controlled permeability 2008-03-21 Cheap, Efficient Thermoelectrics 2008-03-21 Nanoscience will change the way we think about the world 2008-03-21 Substantial improvement in essential cheap solar cell process 2008-03-20 Nanotechnology makes clean, efficient conductor 2008-03-20 Researchers achieve dramatic increase in thermoelectric efficiency 2008-03-20 Tiny buckyballs squeeze hydrogen like giant Jupiter 2008-03-19 New nanoparticle catalyst brings fuel-cell cars closer to showroom 2008-03-19 Tiny Brain-Like Transistor Controls Nanobots 2008-03-18 Metal strength tested at the nanoscale 2008-03-18 A High Power Laser Zap to Nanotechnology 2008-03-18 Nanophotonic switch device for routing light on a chip scale 2008-03-17 New E-textiles "grown" in makeshift washing machine 2008-03-17 Better Graphene Transistors 2008-03-15 Carbon Nanotubes Help Fix Bones 2008-03-14 Carbon nanotubes outperform copper nanowires as interconnects 2008-03-12 Single-crystal semiconductor wire built into an optical fiber 2008-03-12 Tiny Brain-Like Transistor Controls Nanobots 2008-03-12 Nano-scale structures made from DNA: study 2008-03-12 Nanomaterials show unexpected strength under stress 2008-03-12 Nanotubes Show Their Strengths in Polymer Fibres 2008-03-10 Handheld DNA detector 2008-03-10 Thinner, stronger and more flexible research 2008-03-10 Silver Nanoparticles Deadly to Bacteria 2008-03-10 Measurement technique probes surface structure of gold nanocrystals 2008-03-10 All done with mirrors: Microscope tracks nanoparticles in 3-D
Breakthroughs in nanotechnology on edge of 'knowledge frontier'
University of Missouri scientist Kattesh Katti recently discovered how to make gold nanoparticles using gold salts, soybeans and water. Katti’s research has garnered attention worldwide and the environmentally-friendly discovery could have major applications in several disciplines.
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Gold nanoparticles are tiny pieces of gold, so small they cannot be seen by the naked eye. Researchers believe gold nanoparticles will be used in cancer detection and treatment, the production of “smart” electronic devices, the treatment of certain genetic eye diseases and the development of “green” automobiles.
While the nanotechnology industry is expected to produce large quantities of nanoparticles in the near future, researchers have been worried about the environmental impact of typical production methods. Commonly, nanoparticles have been produced using synthetic chemicals. Katti’s process, which uses only naturally occurring elements, could have major environmental implications for the future. Since some of the chemicals currently used to make nanoparticles are toxic to humans, Katti’s discovery also could open doors for additional medical fields. Having a 100-percent natural “green” process could allow medical researchers to expand the use of the nanoparticles.
“Typically, a producer must use a variety of synthetic or man-made chemicals to produce gold nanoparticles,” said Katti, professor of radiology and physics in the School of Medicine and College of Arts and Science at MU, senior research scientist at the MU Research Reactor (MURR) and director of the University of Missouri Cancer Nanotechnology Platform. “To make the chemicals necessary for production, you need to have other artificial chemicals produced, creating an even larger, negative environmental impact. Our new process only takes what nature has made available to us and uses that to produce a technology already proven to have far-reaching impacts in technology and medicine.”
The new discovery has created a large positive response in the scientific community. Researchers from as far away as Germany have commented on the discovery’s importance and the impact it will have in the future.
“Dr. Katti’s discovery sets up the beginning of a new knowledge frontier that interfaces plant science, chemistry and nanotechnology,” said Herbert W. Roesky, a professor and world-renowned chemist from the University of Goettingen in Germany.
Katti and his long-time collaborator and colleague, Raghuraman Kannan, assistant professor of radiology, sowed the seeds of Nanomedicine at MU through their groundbreaking discoveries in 2004. MU now has an internationally recognized research program in nanomedicine. The research was funded by grants from the National Cancer Institute and the National Institutes of Health.
Katti’s research in the field of nanomedicine, biomedicine, cancer diagnostics/therapeutics and optical imaging have earned him numerous awards and recognition. The latest honor bestowed upon Katti is the “Outstanding Missourian” award, which he will receive Tuesday, March 4 in Jefferson City. The award is presented as “acknowledgement of the most accomplished citizens of the state of Missouri” and for making an “outstanding contribution to his state or nation.” He is scheduled to receive the award at the beginning of the morning session of the Missouri House of Representatives.
In a recent interview, he expressed his gratefulness for the recognition, but attributes much of the credit to others, including his wife, Kavita Katti, who is a senior research chemist at MU, and his parents in India who supported him in his education.
“I feel excited about the recognition, and I attribute my selection to our institution, my research group and my collaborators,” Katti said. “This award is the culmination of several factors, including departmental leadership, a plethora of outstanding collaborators at MU, the deans and, of course, the chancellor. A faculty member could not possibly succeed just by his or her own efforts. We have been very blessed with this team effort. I am very excited to receive this recognition. I think it speaks highly of our school and of our nanomedicine program.”
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