Navigation Links
Princeton engineers make breakthrough in ultra-sensitive sensor technology
Date:3/21/2011

Princeton researchers have invented an extremely sensitive sensor that opens up new ways to detect a wide range of substances, from tell-tale signs of cancer to hidden explosives.

The sensor, which is the most sensitive of its kind to date, relies on a completely new architecture and fabrication technique developed by the Princeton researchers. The device boosts faint signals generated by the scattering of laser light from a material placed on it, allowing the identification of various substances based on the color of light they reflect. The sample could be as small as a single molecule.

The technology is a major advance in a decades-long search to identify materials using Raman scattering, a phenomena discovered in the 1920s by an Indian physicist, Chandrasekhara Raman, where light reflecting off an object carries a signature of its molecular composition and structure.

"Raman scattering has enormous potential in biological and chemical sensing, and could have many applications in industry, medicine, the military and other fields," said Stephen Y. Chou, the professor of electrical engineering who led the research team. "But current Raman sensors are so weak that their use has been very limited outside of research. We've developed a way to significantly enhance the signal over the entire sensor and that could change the landscape of how Raman scattering can be used."

Chou and his collaborators, electrical engineering graduate students, Wen-Di Li and Fei Ding, and post-doctoral fellow, Jonathan Hu, published a paper on their innovation in February in the journal Optics Express. The research was funded by the Defense Advance Research Projects Agency.

In Raman scattering, a beam of pure one-color light is focused on a target, but the reflected light from the object contains two extra colors of light. The frequency of these extra colors are unique to the molecular make-up of the substance, providing a potentially powerfu
'/>"/>

Contact: Chris Emery
cemery@princeton.edu
609-258-4597
Princeton University, Engineering School
Source:Eurekalert  

Page: 1 2 3

Related biology technology :

1. Princeton scientists find an equation for materials innovation
2. Princeton scientists find unusual electrons that go with the flow
3. Online Systems Engineering Master's Program Attracts Engineers from Fortune 500 Firms
4. NC State engineers discover nanoparticles can break on through
5. Engineers aim to solve burning computer problem
6. Virginia Tech engineers identify conditions that initiate erosion
7. Techstreet Launches BuildingBlocks Utility for Industry Standards Saving Time and Increasing Productivity for Engineers
8. Virginia Tech engineers investigate energy independent monitoring system for bridges
9. New Educational Website Celebrates the Accomplishments of Engineers
10. Engineers tune a nanoscale grating structure to trap and release a variety of light waves
11. UB engineers prove that carbon nanotubes are superior to metals for electronics
Post Your Comments:
*Name:
*Comment:
*Email:
Related Image:
Princeton engineers make breakthrough in ultra-sensitive sensor technology 
(Date:1/22/2015)... (PRWEB) January 22, 2015 The laboratory ... that has witnessed a number of technological advancements due ... regulatory requirements, growing need to integrate healthcare systems, and ... ease challenges in system integration. Key players in the ...
(Date:1/22/2015)... Pipette.com has added the Eppendorf Centrifuge ... of Eppendorf products. , The Eppendorf Centrifuge 5424/5424 R ... R and receive the following:, ,     Free ... Eppendorf Reference 2 ,     3 Free boxes ...
(Date:1/22/2015)... 2015 Controlled Substance Compliance Services (CSCS), ... companies check the legal requirements around using controlled substances ... , As their international operations expand and become ... solutions built as a result of the first phase ...
(Date:1/22/2015)... NEW BRUNSWICK , Nueva Jersey , 22 ... Award for Biomedical Research abre hoy su llamada ... las personas cuya investigación científica ha hecho, o tiene ... de la salud humana. Las nominaciones se aceptarán hasta ...
Breaking Biology Technology:Laboratory Information Management Systems Market is Expected to Reach $1,323.6 Million by 2019 - New Research Report by MarketsandMarkets 2Laboratory Information Management Systems Market is Expected to Reach $1,323.6 Million by 2019 - New Research Report by MarketsandMarkets 3Laboratory Information Management Systems Market is Expected to Reach $1,323.6 Million by 2019 - New Research Report by MarketsandMarkets 4Eppendorf Announces Promotional Bundle Which Includes: Eppendorf Centrifuge 5424, 3-Pack of Pipettes, and Tips - Available Now at Pipette.com 2Global Compliance Service for Controlled Substances to Expand to China 2El Dr. Paul Janssen Award for Biomedical Research emite su llamada a los nominados para 2015 2El Dr. Paul Janssen Award for Biomedical Research emite su llamada a los nominados para 2015 3El Dr. Paul Janssen Award for Biomedical Research emite su llamada a los nominados para 2015 4
... ... of the prestigious eHealthcare Leadership Award given annually to organizations representing the best web ... ... leading provider of clinical trials information, received its fifth consecutive eHealthcare Leadership Award and ...
... GUANGZHOU, China, Nov. 11 /PRNewswire-Asia/ -- China ... "the Company"), a leading,developer and distributor of prescription ... nutritional and dietary supplements, and,medical devices and medical ... call at 10:00 a.m. Eastern Time on Monday, ...
... Pa., Nov. 9 /PRNewswire-Asia-FirstCall/ -- BMP Sunstone,Corporation (Nasdaq: BJGP ) ... quarter ended September 30, 2009. , , Third ... to $33.6 million from $30.5 million in the prior year, ... particularly in, licensed products;, ...
Cached Biology Technology:CenterWatch Honored a Fifth Consecutive Year for Best Healthcare Content 2China Medicine Announces Conference Call to Discuss Third Quarter 2009 Results 2China Medicine Announces Conference Call to Discuss Third Quarter 2009 Results 3BMP Sunstone Reports Third Quarter 2009 Financial Results 2BMP Sunstone Reports Third Quarter 2009 Financial Results 3BMP Sunstone Reports Third Quarter 2009 Financial Results 4BMP Sunstone Reports Third Quarter 2009 Financial Results 5BMP Sunstone Reports Third Quarter 2009 Financial Results 6BMP Sunstone Reports Third Quarter 2009 Financial Results 7BMP Sunstone Reports Third Quarter 2009 Financial Results 8BMP Sunstone Reports Third Quarter 2009 Financial Results 9BMP Sunstone Reports Third Quarter 2009 Financial Results 10BMP Sunstone Reports Third Quarter 2009 Financial Results 11BMP Sunstone Reports Third Quarter 2009 Financial Results 12
(Date:1/22/2015)... - Today, FindBiometrics, the leading source of biometrics industry news, interviews ... design. "When we launched FindBiometrics 12 years ago ... , founder and CEO of FindBiometrics. "Now it,s maturing very ... key players on a very broad scale.  We are known ...
(Date:1/22/2015)... 20, 2015 NXT-ID, Inc. (NASDAQ: NXTD and NXTDW) ... on the recent success of the Wocket™ smart wallet at CES 2015 ... wallet was named as one of the "11 Hot Products at CES" ... Launched At CES So Far" by Newseveryday.com and "The top 10 gadgets ...
(Date:1/22/2015)... , Jan. 22, 2015   EyeLock, Inc. , a market ... appointed Steve Gerber to the new role of ... responsible for leading development of mobile platforms and wearable solutions ... success and innovation in the semiconductor industry to his role ...
Breaking Biology News(10 mins):Identity Industry Leading Publication Debuts New Look As Biometrics Hit Mainstream 2CES Response for NXT-ID's Wocket Smart Wallet Kicks Off 2015 2CES Response for NXT-ID's Wocket Smart Wallet Kicks Off 2015 3EyeLock Names Steve Gerber as Senior Vice President of Mobile and Wearables 2
... new mechanism of infection for the most fatal bee ... which can kill entire colonies of bees. Every year, ... beekeepers all over the world. The only control measure ... of infection (pathogenic mechanism) was originally thought to be ...
... 1 Stinger Systems, Inc. (OTC,Bulletin Board: STIY), ... had reached a settlement agreement with the Securities ... settled the matter without admitting or,denying wrongdoing and ... Systems, Inc. also said that no fines or ...
... of physical oceanographers including a researcher from Scripps Institution ... oxygen-poor regions of tropical oceans are expanding as the ... and other marine organisms can live or enter in ... by Lothar Stramma from the Leibniz Institute of Marine ...
Cached Biology News:Bees disease -- 1 step closer to finding a cure 2Oxygen depletion: A new form of ocean habitat loss 2
... HVJ (hemagglutinating virus of Japan, also named ... tool for transfection of molecules by means ... for siRNA (RNAi), Protein, Oligo, cDNA, Antibodies, ... in vivo. GenomONE-Neo EX has a high ...
... DTT White solid. ... Purity: ≥99% by titration. ... Absorbance: (100 mM, 280 nm):≤0.05. ... or H 2 O. RTECS ...
... White solid.. PACKAGED UNDER INERT GAS. Cyclizes as ... "driven" to completion. A protective agent for SH ... many other preparations. Blocks the lethal and hypnotic ... Contaminants: Heavy metals: ≤1 ppm. ...
... highest precision, more user-friendliness and absolute reliability ... the definition of the Mastercycler ep system. ... research has been developing dynamically. The same ... Systems. To keep pace with these ...
Biology Products: