Nanotechnology Now

Our NanoNews Digest Sponsors

Heifer International

Wikipedia Affiliate Button

Home > Press > New instrument keeps an 'eye' on nanoparticles

This is an optical microscope image of the microfluidic channel (light pattern) and sensing electrode (gold) of the analyzer. Nanoparticles are suspended in a fluid flow through the channel, and are detected individually as they pass through the sensing volume.

Credit: J.L. Fraikin and A.N. Cleland, UCSB
This is an optical microscope image of the microfluidic channel (light pattern) and sensing electrode (gold) of the analyzer. Nanoparticles are suspended in a fluid flow through the channel, and are detected individually as they pass through the sensing volume.

Credit: J.L. Fraikin and A.N. Cleland, UCSB

Abstract:
Precision measurement in the world of nanoparticles has now become a possibility, thanks to scientists at UC Santa Barbara.

The UCSB research team has developed a new instrument capable of detecting individual nanoparticles with diameters as small as a few tens of nanometers. The study will be published on line this week by Nature Nanotechnology, and appear in the April print issue of the journal.

New instrument keeps an 'eye' on nanoparticles

Santa Barbara | Posted on March 6th, 2011

"This device opens up a wide range of potential applications in nanoparticle analysis," said Jean-Luc Fraikin, the lead author on the study. "Applications in water analysis, pharmaceutical development, and other biomedical areas are likely to be developed using this new technology." The instrument was developed in the lab of Andrew Cleland, professor of physics at UCSB, in collaboration with the group of Erkki Ruoslahti, Distinguished Professor, Sanford-Burnham Medical Research Institute at UCSB.

Fraikin is presently a postdoctoral associate in the Marth Lab at the Sanford-Burnham Medical Research Institute's Center for Nanomedicine, and in the Soh Lab in the Department of Mechanical Engineering at UC Santa Barbara.

The device detects the tiny particles, suspended in fluid, as they flow one by one through the instrument at rates estimated to be as high as half a million particles per second. Fraikin compares the device to a nanoscale turnstile, which can count -- and measure -- particles as they pass individually through the electronic "eye" of the instrument.

The instrument measures the volume of each nanoparticle, allowing for very rapid and precise size analysis of complex mixtures. Additionally, the researchers showed that the instrument could detect bacterial virus particles, both in saline solution as well as in mouse blood plasma.

In this study, the researchers further discovered a surprisingly high concentration of nanoparticles present in the native blood plasma. These particles exhibited an intriguing size distribution, with particle concentration increasing as the diameter fell to an order of 30 to 40 nanometers, an as-yet unexplained result.

####

For more information, please click here

Contacts:
Gail Gallessich

805-893-7220

Copyright © University of California - Santa Barbara

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

High-speed FM-AFM and simulation reveal atomistic dissolution processes of calcite in water July 28th, 2017

Atomic movies may help explain why perovskite solar cells are more efficient: SLAC's ultrafast 'electron camera' captures surprising atomic motions in these next-generation materials July 28th, 2017

Triple-layer catalyst does double duty: Rice, University of Houston produce robust catalyst to split water into hydrogen, oxygen July 28th, 2017

Arrowhead Pharmaceuticals to Webcast Fiscal 2017 Third Quarter Results July 27th, 2017

Living computers: RNA circuits transform cells into nanodevices July 27th, 2017

Imaging

Atomic movies may help explain why perovskite solar cells are more efficient: SLAC's ultrafast 'electron camera' captures surprising atomic motions in these next-generation materials July 28th, 2017

Discoveries

High-speed FM-AFM and simulation reveal atomistic dissolution processes of calcite in water July 28th, 2017

Atomic movies may help explain why perovskite solar cells are more efficient: SLAC's ultrafast 'electron camera' captures surprising atomic motions in these next-generation materials July 28th, 2017

Triple-layer catalyst does double duty: Rice, University of Houston produce robust catalyst to split water into hydrogen, oxygen July 28th, 2017

First Capacitive Transducer with 13nm Gap July 27th, 2017

Announcements

High-speed FM-AFM and simulation reveal atomistic dissolution processes of calcite in water July 28th, 2017

Atomic movies may help explain why perovskite solar cells are more efficient: SLAC's ultrafast 'electron camera' captures surprising atomic motions in these next-generation materials July 28th, 2017

Triple-layer catalyst does double duty: Rice, University of Houston produce robust catalyst to split water into hydrogen, oxygen July 28th, 2017

Physicists gain new insights into nanosystems with spherical confinement: Enormous potential for the targeted delivery of pharmaceutical agents and the creation of tailored nanoparticles July 27th, 2017

Tools

Atomic movies may help explain why perovskite solar cells are more efficient: SLAC's ultrafast 'electron camera' captures surprising atomic motions in these next-generation materials July 28th, 2017

Phenom-World Launches Phenom Pro and ProX Generation 5 SEMs at Microscopy & Microanalysis Conference USA: The excellent performance in a wide range of applications offers a serious alternative to floor model SEMs July 26th, 2017

The School of Materials at the University of Manchester utilise Debenís mechanical stages to characterise structure and behaviour at the micro- and nano- scale July 25th, 2017

Scientists announce the quest for high-index materials: All-dielectric nanophotonics: The quest for better materials and fabrication techniques July 22nd, 2017

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