Nanotechnology Now

Our NanoNews Digest Sponsors

Heifer International

Wikipedia Affiliate Button


DHgate

Home > Press > Argonne chemist wins AWIS Innovator Award for nanoparticle research

Abstract:
The Chicago chapter of the Association for Women in Science (AWIS) granted its third annual Innovator Award to Tijana Rajh, group leader of the Nanobio Interfaces research group at Argonne National Laboratory's Centre for Nanoscale Materials. The award honours contributions to science in the Chicagoland area. Rajh received the award for her work studying semiconductor nanoparticles, a field with applications from solar power to cancer research.

Argonne chemist wins AWIS Innovator Award for nanoparticle research

Argonne, IL | Posted on July 21st, 2009

Rajh cites Marion Thurnauer, a longtime Argonne scientist and former director of the Chemistry Division, as her mentor. 'At the time she was hired at Argonne, and for the next eight years, she was the only female Ph.D. staff member of Argonne's Chemistry Division,' Rajh said. 'That experience prompted her to encourage broader searches for women to be represented in the Argonne job candidate pool.'

Rajh herself grew up in Yugoslavia, where, she says, it was more common for women to have careers in science. A friend of her mother's brought Rajh to visit her workplace, a scientific institution much like Argonne. 'I fell in love with it,' Rajh said. 'There was absolutely no question what I was going to do with my life. And then when I came here,' she added, smiling, 'I was hooked.'

While finishing her undergraduate physical chemistry degree at the University of Belgrade, a professor invited her to join a research project attempting to split water into hydrogen and oxygen molecules for fuel purposes. She didn't know it, but it was the jumping-off point for a long career studying semiconductor nanoparticles - tiny particles made from materials which form the heart of modern electronics. Their photoactivity and stability is exactly what makes them good for many uses, from pollutant cleanup to medical imaging.

Rajh and the research team noticed that the particles of the same chemical composition appeared in different colours as researchers shrunk them smaller and smaller. Nanoparticles can change colour, and other characteristics, with size: a quirk useful for many applications. 'When you see it for the first time, it's so amazing,' Rajh said. Together with her advisor Olga Micic and collaborator Art Nozik at the National Renewable Energy Laboratory, she authored one of the first three papers ever written about colloidal quantum dots (1985).

Thurnauer recruited Rajh in 1994, where she began studying how to use nanoparticles in a variety of applications: to remove heavy metal pollutants from the environment, write data to nanocircuits in computers, and link nanoparticles with biological materials.

For example, Rajh works with particles made of the semiconductor titanium dioxide (TiO2), which is white. When combined with organic compounds such as vitamin C or dopamine, which are also white, nanoparticles turn a brilliant red - indicating that the two materials are interacting at the molecular level. This discovery allowed her and her team to electronically link TiO2 particles with DNA and other biological molecules, opening a whole new dimension of possibilities. One of the team members, Elena Rozhkova, is working to apply the particles to cancer treatment. 'She marks glioma cancer cells with TiO2 particles,' Rajh explained, 'and doctors could use light of a certain energy to destroy only those marked cells, leaving healthy brain cells intact.'

At the core, though, Rajh loves basic science the best. 'I love research, it's so cool,' she said. 'It's like a puzzle. There's a problem, and you look at it and start making connections, and very slowly the whole picture opens up.'

Rajh received her Ph.D. in 1986 from the University of Belgrade in Yugoslavia. Prior to working at CNM, she joined Argonne's Chemistry Division in 1996 and has been a prolific researcher, co-authoring six papers in 2008 alone.

She is the third scientist to be recognised by the Association for Women in Science Chicago Area Chapter, a nonprofit organisation dedicated to advancing women in the field of science. The group formed in 1971 and has since expanded nationwide. Chapters advocate for women in all scientific fields, publicise women's achievements, and hold educational workshops for students. The Innovator Award recognises achievements in science in the Chicagoland area.

####

About Argonne National Laboratory
Argonne National Laboratory brings the world's brightest scientists and engineers together to find exciting and creative new solutions to pressing national problems in science and technology. The nation's first national laboratory, Argonne conducts leading-edge basic and applied scientific research in virtually every scientific discipline. Argonne researchers work closely with researchers from hundreds of companies, universities, and federal, state and municipal agencies to help them solve their specific problems, advance America's scientific leadership and prepare the nation for a better future. With employees from more than 60 nations, Argonne is managed by UChicago Argonne, LLC for the U.S. Department of Energy's Office of Science.

For more information, please click here

Contacts:
Louise Lerner
(630) 252-5526


Steve McGregor
Media Relations Manager
Phone 630/252-5580
FAX 630/252-5274

Copyright © Argonne National Laboratory

If you have a comment, please Contact us.

Issuers of news releases, not 7th Wave, Inc. or Nanotechnology Now, are solely responsible for the accuracy of the content.

Bookmark:
Delicious Digg Newsvine Google Yahoo Reddit Magnoliacom Furl Facebook

Related News Press

News and information

Chemical cages: New technique advances synthetic biology February 10th, 2016

New thin film transistor may lead to flexible devices: Researchers engineer an electronics first, opening door to flexible electronics February 10th, 2016

Making sense of metallic glass February 9th, 2016

Electron's 1-D metallic surface state observed: A step for the prediction of electronic properties of extremely-fine metal nanowires in next-generation semiconductors February 9th, 2016

Possible Futures

Chemical cages: New technique advances synthetic biology February 10th, 2016

New thin film transistor may lead to flexible devices: Researchers engineer an electronics first, opening door to flexible electronics February 10th, 2016

Electron's 1-D metallic surface state observed: A step for the prediction of electronic properties of extremely-fine metal nanowires in next-generation semiconductors February 9th, 2016

Scientists create laser-activated superconductor February 8th, 2016

Nanomedicine

Nanoparticle therapy that uses LDL and fish oil kills liver cancer cells February 9th, 2016

Leading bugs to the death chamber: A kinder face of cholesterol February 8th, 2016

UTHealth research looks at nanotechnology to help prevent preterm birth February 7th, 2016

Scientists take key step toward custom-made nanoscale chemical factories: Berkeley Lab researchers part of team that creates new function in tiny protein shell structures February 6th, 2016

Announcements

Chemical cages: New technique advances synthetic biology February 10th, 2016

New thin film transistor may lead to flexible devices: Researchers engineer an electronics first, opening door to flexible electronics February 10th, 2016

Superconductivity: Footballs with no resistance - Indications of light-induced lossless electricity transmission in fullerenes contribute to the search for superconducting materials for practical applications February 9th, 2016

SUNY Poly and GLOBALFOUNDRIES Announce New $500M R&D Program in Albany To Accelerate Next Generation Chip Technology: Arrival of Second Cutting Edge EUV Lithography Tool Launches New Patterning Center That Will Generate Over 100 New High Tech Jobs at SUNY Poly February 9th, 2016

Environment

Scientists have put a high precision blood assay into a simple test strip: Researchers have developed a new biosensor test system based on magnetic nanoparticles February 3rd, 2016

Herbal Extracts Applied to Synthesize Titanium Dioxide Nanoparticles January 28th, 2016

FLEXcon shares insights on developments and safety guidelines in nanotechnology: FLEXcon hosted New England Nanotechnology Association event, discussing latest industry activities and innovations January 25th, 2016

Highly efficient heavy metal ions filter January 25th, 2016

Energy

New thin film transistor may lead to flexible devices: Researchers engineer an electronics first, opening door to flexible electronics February 10th, 2016

Canadian physicists discover new properties of superconductivity February 8th, 2016

Host-guest nanowires for efficient water splitting and solar energy storage February 7th, 2016

February 4th, 2016

Nanobiotechnology

Chemical cages: New technique advances synthetic biology February 10th, 2016

Nanoparticle therapy that uses LDL and fish oil kills liver cancer cells February 9th, 2016

Leading bugs to the death chamber: A kinder face of cholesterol February 8th, 2016

UTHealth research looks at nanotechnology to help prevent preterm birth February 7th, 2016

Solar/Photovoltaic

Host-guest nanowires for efficient water splitting and solar energy storage February 7th, 2016

Simplifying solar cells with a new mix of materials: Berkeley Lab-led research team creates a high-efficiency device in 7 steps January 29th, 2016

An alternative to platinum: Iron-nitrogen compounds as catalysts in graphene January 28th, 2016

Scientists provide new guideline for synthesis of fullerene electron acceptors January 28th, 2016

NanoNews-Digest
The latest news from around the world, FREE




  Premium Products
NanoNews-Custom
Only the news you want to read!
 Learn More
NanoTech-Transfer
University Technology Transfer & Patents
 Learn More
NanoStrategies
Full-service, expert consulting
 Learn More











ASP
Nanotechnology Now Featured Books




NNN

The Hunger Project







Car Brands
Buy website traffic