Nanotechnology Now

Our NanoNews Digest Sponsors





Heifer International

Wikipedia Affiliate Button


android tablet pc

Home > Press > 2008 NanoBio Symposium Preview: Jennifer West

Jennifer West. Speaker at the 2008 NanoBio symposium. Credit: Rice University
Jennifer West. Speaker at the 2008 NanoBio symposium. Credit: Rice University

Abstract:
Clinicians may soon be able to add metallic nanoshells to the arsenal of weapons that they can use to preserve and protect human health. Metallic nanoshells— super tiny spheres composed of layers of differing materials—allow light to safely penetrate deep within tissues to help diagnose or treat disease, says bioengineer Jennifer West. West will discuss her current work with nanoshells at the second annual Johns Hopkins NanoBio Symposium, hosted by the Institute for NanoBioTechnology, on May 1 -2 at the School of Medicine.

2008 NanoBio Symposium Preview: Jennifer West

Baltimore, MD | Posted on April 4th, 2008

West is the Isabel C. Cameron Professor of Bioengineering at Rice University in Houston, Texas. She was previously named one of the world's 100 Top Young Innovators by Technology Review, the innovation magazine of the Massachusetts Institute of Technology, where she earned her undergraduate degree.

Nanoshells have the ability to be "optically tuned," West says. "Depending on their size and composition, we can make them either absorb or scatter light anywhere in the electromagnetic spectrum."

This property of optical tuning means nanoshells can either heat up locally to destroy tumor tissue or reflect light back to improve imaging—or both—over a range of light wavelengths. The materials used for each layer of the nanoshell determine the wavelengths over which the device can be tuned. A typical nanoshell can be fabricated by fusing an outer layer of a biocompatible metal, such as gold, over an inner core of silica, West says, though other materials also are used.

Since the nanoshells typically "tune" over a very narrow range of near infrared light (from 700-900 nanometers in the spectrum), they will neither heat up the water in tissues nor will they be absorbed by hemoglobin in blood or melanin in the skin, West explains, This property prevents the nanoshells from causing collateral damage to the surrounding tissues.

"A light shone from outside the body can pass harmlessly through tissue," West says. "There is such deep penetration of light that this technology can be used for whole breast biopsy and whole brain imaging."

The property of optical tunability also makes nanoshells an excellent tool for detecting viruses and bacteria in whole blood, West adds. Nanoshells with antibodies attached to their surfaces interact with the antigen in question and form clumps. The clumps diffuse the light reflected by the nanoshells, West explains, and one can determine the concentration of whatever is being studied by the degree of diffusion.

West says that she and the inventor of the nanoshell—Naomi Halas, the Stanley C. Moore Professor of Electrical and Computer Engineering and Professor of Chemistry at Rice—are currently working with a Texas firm to commercialize the use of a nanoshell-based medical device for clinical use.

####

About Institute for NanoBioTechnology
The Institute for NanoBioTechnology at Johns Hopkins University is revolutionizing health care by bringing together internationally renowned expertise in medicine, engineering, the sciences, and public health to create new knowledge and groundbreaking technologies.

INBT programs in research, education, outreach, and technology transfer are designed to foster the next wave of nanobiotechnology innovation.

Approximately 155 faculty are affiliated with INBT and are also members of the following Johns Hopkins institutions: Krieger School of Arts and Sciences, Whiting School of Engineering, School of Medicine, Bloomberg School of Public Health, and Applied Physics Laboratory.

For more information, please click here

Contacts:


* Institute for NanoBioTechnology
214 Maryland Hall
3400 North Charles Street
Baltimore, MD 21218

* Email:
* Phone: (410) 516-3423
* Fax: (410) 516-2355

Copyright © Institute for NanoBioTechnology

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

Special UO microscope captures defects in nanotubes: University of Oregon chemists provide a detailed view of traps that disrupt energy flow, possibly pointing toward improved charge-carrying devices October 21st, 2014

Super stable garnet ceramics may be ideal for high-energy lithium batteries October 21st, 2014

Could I squeeze by you? Ames Laboratory scientists model molecular movement within narrow channels of mesoporous nanoparticles October 21st, 2014

Detecting Cancer Earlier is Goal of Rutgers-Developed Medical Imaging Technology: Rare earth nanocrystals and infrared light can reveal small cancerous tumors and cardiovascular lesions October 21st, 2014

Nanomedicine

Detecting Cancer Earlier is Goal of Rutgers-Developed Medical Imaging Technology: Rare earth nanocrystals and infrared light can reveal small cancerous tumors and cardiovascular lesions October 21st, 2014

Design of micro and nanoparticles to improve treatments for Alzheimers and Parkinsons: At the Faculty of Pharmacy of the UPV/EHU-University of the Basque Country encapsulation techniques are being developed to deliver correctly and effectively certain drugs October 20th, 2014

Non-Toxic Nanocatalysts Open New Window for Significant Decrease in Reaction Process October 19th, 2014

European Commission opens the gate towards the implementation of Nanomedicine Translation Hub October 16th, 2014

Announcements

Special UO microscope captures defects in nanotubes: University of Oregon chemists provide a detailed view of traps that disrupt energy flow, possibly pointing toward improved charge-carrying devices October 21st, 2014

Super stable garnet ceramics may be ideal for high-energy lithium batteries October 21st, 2014

Could I squeeze by you? Ames Laboratory scientists model molecular movement within narrow channels of mesoporous nanoparticles October 21st, 2014

Detecting Cancer Earlier is Goal of Rutgers-Developed Medical Imaging Technology: Rare earth nanocrystals and infrared light can reveal small cancerous tumors and cardiovascular lesions October 21st, 2014

Events/Classes

Ucore's McKenzie to Deliver Presentation to Rare Earths Conference in Singapore as Highlight of Fall 2014 Marketplace Schedule October 19th, 2014

Aspen Aerogels, Inc. Schedules Third Quarter 2014 Earnings Release and Conference Call for November 6, 2014 October 17th, 2014

New VDMA Association "Electronics, Micro and Nano Technologies" founded: Inaugural Meeting in Frankfurt/Main, Germany October 15th, 2014

Nanotronics Imaging Releases nSPEC® 3D, Powerful Microscope That Captures 3D Images at Nanoscale, in Lightning Speed: Company Unveils Design at American Chemical Society 2014 International Elastomer Conference October 14th, 2014

Nanobiotechnology

Crystallizing the DNA nanotechnology dream: Scientists have designed the first large DNA crystals with precisely prescribed depths and complex 3D features, which could create revolutionary nanodevices October 20th, 2014

Scientists Map Key Moment in Assembly of DNA-Splitting Molecular Machine: Crucial steps and surprising structures revealed in the genesis of the enzyme that divides the DNA double helix during cell replication October 15th, 2014

DNA nano-foundries cast custom-shaped metal nanoparticles: DNA's programmable assembly is leveraged to form precise 3D nanomaterials for disease detection, environmental testing, electronics and beyond October 10th, 2014

Charged graphene gives DNA a stage to perform molecular gymnastics October 9th, 2014

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







© Copyright 1999-2014 7th Wave, Inc. All Rights Reserved PRIVACY POLICY :: CONTACT US :: STATS :: SITE MAP :: ADVERTISE