Nanotechnology Now

Our NanoNews Digest Sponsors





Heifer International

Wikipedia Affiliate Button


DHgate

Home > Press > A Golden Levitating Act

Hamsa Sridhar ‘12 is conducting research at the School of Engineering and Applied Sciences that seeks to levitate gold-coated micro-particles. The research made the front cover of the journal Nature. By Sirui Li.
Hamsa Sridhar ‘12 is conducting research at the School of Engineering and Applied Sciences that seeks to levitate gold-coated micro-particles. The research made the front cover of the journal Nature. By Sirui Li.

Abstract:
Hamsa Sridhar '12 works with levitating gold on a regular basis—but the work is neither magical nor costly.

By Sirui Li, Contributing Writer

A Golden Levitating Act

Cambridge, MA | Posted on March 5th, 2010

Sridhar, a joint physics and mathematics concentrator, is the only undergraduate researcher involved in a project at the School of Engineering and Applied Sciences that seeks to levitate certain micro-particles coated with a thin layer of gold.

Under the direction of Applied Physics Professor Federico Capasso, Sridhar has to devise feasible ways to coat the micro-particle with gold and magnetic materials.

Before entering the nanofabrication facility at SEAS to coat the micro-particles in gold in her routine procedure, Sridhar must undergo a number of security measures: she has her iris scanned, and she swathes herself in a complete outfit that includes booties—which go on first, she said—and a white suit.

Sridhar—who placed first in the 2007 Intel Science Talent Search as a high schooler—said that her interest in nanotechnology blossomed last summer, when she participated in the National Nanotechnology Infrastructure Network Research Experience for Undergraduates Program, which offers hands-on nanoscience and technology research experience.

Describing nanotechnology as "the hub of science" and a field with "a lot of potential and promise," Sridhar said that she is passionate about the field because "all the new technologies are moving towards" nanotechnology.

"Hamsa has been great," said SEAS student David N. Woolf, who is also a research assistant for the project. "She is hardworking and self-sufficient."

The SEAS project made a breakthrough last year, when researchers proved the existence of repulsive inter-molecular forces, which had previously only existed in theory without empirical basis.

The application of certain materials to the micro-particles causes a shift from attractive to repulsive inter-molecular forces, thus permitting the particles to levitate in a fluid, Sridhar explained.

With further exploration, the researchers hope that their work will help significantly reduce quantum-scale friction in nano devices—but more research and experimentation remain before the project's findings can be applied to an actual nano device, Sridhar said.

Video here: www.thecrimson.com/section/media/

####

For more information, please click here

Copyright © Harvard University

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

Multi-million pound project to use nanotechnology to improve safety September 4th, 2015

Magnetic wormhole connecting 2 regions of space created for the first time: The device could have applications in medicine, opening up ways to make MRIs more comfortable for patients September 4th, 2015

Tongfang Global and QD Vision Partner to Bring Wide Color Gamut to Global Television Lines: Color IQTM quantum dots help boost company’s focus on superior color reproduction September 3rd, 2015

QEOS and GLOBALFOUNDRIES to Offer Industry’s First CMOS Platform for MillimeterWave Markets: GLOBALSOLUTIONSSM Partnership will enable next-generation wireless technologies for applications in IoT, 5G and automotive September 3rd, 2015

Physics

Magnetic wormhole connecting 2 regions of space created for the first time: The device could have applications in medicine, opening up ways to make MRIs more comfortable for patients September 4th, 2015

NEMS

Quantum states in a nano-object manipulated using a mechanical system August 3rd, 2015

Investigation of Mechanical Behavior of Heterogeneous Nanostructures in Iran July 13th, 2015

Weighing -- and imaging -- molecules one at a time April 28th, 2015

Scientists join forces to reveal the mass and shape of single molecules April 27th, 2015

Possible Futures

Magnetic wormhole connecting 2 regions of space created for the first time: The device could have applications in medicine, opening up ways to make MRIs more comfortable for patients September 4th, 2015

Silk bio-ink could help advance tissue engineering with 3-D printers September 2nd, 2015

Sediment dwelling creatures at risk from nanoparticles in common household products August 13th, 2015

Harris & Harris Group Reports Financial Statements as of June 30, 2015, and Announces a Stock Repurchase Program August 10th, 2015

Academic/Education

Sustainable nanotechnology center September 1st, 2015

National Science Foundation Selects SUNY Poly CNSE for Expanded $2.1M Northeast Advanced Technological Education Center: NSF Center Locates to NanoCollege in Support of Flourishing Tech Industry in NYS September 1st, 2015

Announcing Oxford Instruments and School of Physics signing a Memorandum of Understanding August 26th, 2015

Kwansei Gakuin University in Hyogo, Japan, uses Raman microscopy to study crystallographic defects in silicon carbide wafers August 25th, 2015

MEMS

STMicroelectronics Keynotes on the Next MEMS Wave at MIG Conference Asia September 2nd, 2015

Iranian Scientists Create Best Conditions for Synthesis of Gold Nanolayers July 23rd, 2015

Robust new process forms 3-D shapes from flat sheets of graphene June 23rd, 2015

Slip sliding away: Graphene and diamonds prove a slippery combination June 10th, 2015

Discoveries

Magnetic wormhole connecting 2 regions of space created for the first time: The device could have applications in medicine, opening up ways to make MRIs more comfortable for patients September 4th, 2015

QEOS and GLOBALFOUNDRIES to Offer Industry’s First CMOS Platform for MillimeterWave Markets: GLOBALSOLUTIONSSM Partnership will enable next-generation wireless technologies for applications in IoT, 5G and automotive September 3rd, 2015

Making nanowires from protein and DNA September 3rd, 2015

Making fuel from light: Argonne research sheds light on photosynthesis and creation of solar fuel September 3rd, 2015

Announcements

Multi-million pound project to use nanotechnology to improve safety September 4th, 2015

Magnetic wormhole connecting 2 regions of space created for the first time: The device could have applications in medicine, opening up ways to make MRIs more comfortable for patients September 4th, 2015

Making nanowires from protein and DNA September 3rd, 2015

Making fuel from light: Argonne research sheds light on photosynthesis and creation of solar fuel September 3rd, 2015

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