Nanogallery
Nano-news Nanogallery
TODAY OCTOBER 27, 2021
2008-03-02

Making gold nanoparticles using gold salts, soybeans and water

Making gold nanoparticles using gold salts, soybeans and water

COLUMBIA, Mo. - University of Missouri scientist Kattesh Katti discovered how to make gold nanoparticles using gold salts, soybeans and water. Katti research has garnered attention worldwide and the environmentally-friendly discovery could have major applications in several disciplines.

Gold nanoparticles are tiny pieces of gold, so small they cannot be seen by the naked eye. They were first produced and studied by Michael Faraday, circa 1847. Researchers now 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.

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."




Making gold nanoparticles using gold salts, soybeans and water

  All news
Related news:
  • Casimir force is used to cancel out an effect that brings nanomachines to a standstill
  • Superconducting agreement signed
  • ultra-thin electricity-conducting wires produced by postdoctoral researcher Subrata Kundu and associate professor Hong Liang
  • Transistor history in pictures on BBC
  • The transistor at 60: It's hard even to think of a single invention that is responsible for as much change
  • The cylindrical superstructures are composed of silver nanoparticles with V-shaped amphiphilic arms. The short rod-like and spherical assemblies are made of gold nanoparticles with the same V-shaped amphiphilic arms.  The self-assembly occurs upon slow addition of water to solution of nanoparticles in organic solvent called tetrahydrofuran. The resulting mixture is then dialyzed against pure water in order to remove organic solvent and obtain a pure aqueous solution of the superstructures (they remain in water without any precipitation, just like micelles).
    Nanowerk Nanotechnology Portal
    http://www.nanowerk.com

    Nanohedron
    http://www.nanohedron.com

    Biomolecules
    http://perso.curie.fr/Simon.Sc..


    Nano-news | Nanosuperconductors | Nanofabrication | Nanophenomena | Journals | Web directory | contacts

    20042012 Copyright by Nanogallery.info
    Design by UpMrk