David Kirkpatrick

September 28, 2008

Green gold nanotech

The release from Friday:

MU scientists go green with gold, distribute environmentally friendly nanoparticles

Mizzou scientist named as one of the 25 most influential people in radiology

COLUMBIA, Mo. — 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. A new method, created by a University of Missouri research team, not only eliminates any negative environmental impact, but also has resulted in national and international recognition for the lead scientist. The research was published recently in the journal Small.

“I have always believed that nature is smarter and stronger than humankind,” said Kattesh Katti, professor of radiology and physics in MU’s School of Medicine and College of Arts and Science, senior research scientist at the MU Research Reactor, and director of the MU Cancer Nanotechnology Platform. “This new procedure to create nanoparticles is wonderfully simple, yet it will help create very complex components. There is so much to learn from energy generation, chemical and photochemical reactions of plants.”

Katti, who was recently recognized by rt Image magazine as one of the 25 most influential people in radiology, and his research team have formed Greennano Company, a company that is in the beginning stages of producing environmentally friendly gold nanoparticles. The company will focus on the development, commercialization and worldwide supply of gold nanoparticles for medical and technological applications. Katti believes that because of this new process to produce the nanoparticles, researchers are developing other ways to use them.

The MU research team, which was led by Katti, Raghuraman Kannan and Kavita Katti, found that by submersing gold salts in water and then adding soybeans, gold nanoparticles were generated. The water pulls a phytochemical out of the soybean that is effective in reducing the gold to nanoparticles. A second phytochemical from the soybean, also pulled out by the water, interacts with the nanoparticles to stabilize them and keep them from fusing with the particles nearby. This process creates nanoparticles that are uniform in size in a 100-percent green process. No toxic waste is generated.

“I’m very proud to be one among the list of ’25 Most Influential Scientists’ in the world, especially in the company of all time greats and former awardees including: Elias Zerhouni, director of National Institutes of Health (2003); Henry N. Wagner Jr., recognized as the Father of Nuclear Medicine (2004); Henry D. Royal, Peter S. Conti, past presidents of the Society of Nuclear Medicine; and Barry B. Goldberg, pioneer of ultrasound (2007),” Katti said. “This recognition is a tremendous honor and brings a large amount of prestige to our research group, the Departments of Radiology and Physics, the MU Research Reactor Center and the overall research and education enterprise of our University.”

“They all had one thing in common; they possessed the integrity, drive and passion deserving of the title ‘Most Influential,'” said Heather B. Koitzsch, publisher of rt Image. “In this year’s list, you’ll read about people who are changing the face of medicine, associations that are advocating for better patient care, and researchers whose efforts are uncovering new diagnostic techniques. Whether through speaking, campaigning, researching, creating or leading, someone who is “Most Influential” is committed to making things happen in radiology.”

 

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Katti’s research has been funded by the National Cancer Institute in the National Institutes of Health.

3 Comments »

  1. […] Gold nanoparticles are used in myriad products, from cancer treatments, automobile sensors, and cell phones to blood sugar monitors and hydrogen gas production systems. But producing the nanoparticles has been dogged by an environmental concern due to the synthetic chemicals created as a byproduct of the process. A new method, created by a University of Missouri research team, eliminates any negative environmental impact. The breakthrough, published recently in the nanotech journal Small, is being commercialized in a new start-up called Greennano Co. formed by lead researcher Kattesh Katti, MU professor of radiology and physics and director of the school’s Cancer Nanotechnology Platform. The company will focus on the development, commercialization and worldwide supply of gold nanoparticles for medical and technological applications. The MU research team found that by submersing gold salts in water and then adding soybeans, gold nanoparticles were generated. The water pulls a phytochemical out of the soybean that is effective in reducing the gold to nanoparticles. A second phytochemical from the soybean, also pulled out by the water, interacts with the nanoparticles to stabilize them and keep them from fusing with the particles nearby. This process creates nanoparticles that are uniform in size without generating any toxic waste. Go to: David Kirkpatrick […]

    Pingback by U of Missouri scientists develop new "green" method for producing gold nanoparticles | Technology Transfer Tactics — October 1, 2008 @ 12:02 pm

  2. I don’t get it. The common technique of using citrate produces no environmentally unfriendly byproducts either. Making nanoparticles that do not product toxic byproducts is not an issue. There are none. Whether they are made in plants or in a glass jar is completely independent of the class of byproducts that are created. In essence, this is a lot of excitement over a non issue. See http://www.nanopartz.com for more information on a commercial venture that is solving cancer with gold nanoparticles that are produced “green.”

    Comment by Christian Schoen — November 30, 2008 @ 11:58 am

  3. I don’t get it. The common technique of using citrate produces no environmentally unfriendly byproducts either. Making nanoparticles that do not product toxic byproducts is not an issue. There are none. Whether they are made with plant byproducts or citrate is completely independent of the class of byproducts that are created. In essence, this is a lot of excitement over a non issue. See http://www.nanopartz.com for more information on a commercial venture that is solving cancer with gold nanoparticles that are produced “green.”

    Comment by Christian Schoen — November 30, 2008 @ 11:59 am


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