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

enhance the outgoing Raman signal.

The Chou's team named their new sensor "disk-coupled dots-on-pillar antenna-array" or D2PA, for short.

So far, the chip is a billion times (109) more sensitive than was possible without SERS boosting of Raman signals and the sensor is uniformly sensitive, making it more reliable for use in sensing devices. Such sensitivity is several orders of magnitude higher than the previously reported.

Already, researchers at the U.S. Naval Research Laboratory are experimenting with a less sensitive chip to explore whether the military could use the technology pioneered at Princeton for detecting chemicals, biological agents and explosives.

In addition to being far more sensitive than its predecessors, the Princeton chip can be manufactured inexpensively at large sizes and in large quantities. This is due to the easy-to-build nature of the sensor and a new combination of two powerful nanofabrication technologies: nanoimprint, a method that allows tiny structures to be produced in cookie-cutter fashion; and self-assembly, a technique where tiny particles form on their own. Chou's team has produced these sensors on 4-inch wafers (the basis of electronic chips) and can scale the fabrication to much larger wafer size.

"This is a very powerful method to identify molecules," Chou said. "The combination of a sensor that enhances signals far beyond what was previously possible, that's uniform in its sensitivity and that's easy to mass produce could change the landscape of sensor technology and what's possible with sensing."


'/>"/>

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:7/25/2014)... July 25, 2014 According to a ... Drugs Market - Global Industry Analysis, Size, Share, Growth, ... drugs market is estimated at USD 161,056.5 million in ... of 10.1% from 2014 to 2020, to reach an ... The biological drugs market is witnessing a significant growth ...
(Date:7/25/2014)... Lawrence Livermore scientists Charles Westbrook and William Pitz ... The World's Most Influential Scientific Minds ." , Westbrook ... were identified by analyzing citation data over the last ... work (2002-2012 and 2012-2013). The two were selected from ... , "This recognition is a great honor for Charlie ...
(Date:7/25/2014)... At the request of the AMA, the ... for the public comment period (Docket No. FAA-2014-0396) for ... established by Congress as part of the FAA Modernization ... the new deadline for comments as September 23, 2014. ... published in the Federal Register on July 25, 2014, ...
(Date:7/24/2014)... RIDGE, Tenn., July 24, 2014 -- A novel combination ... the Department of Energy,s Oak Ridge National Laboratory an ... for its unusual physical and electrochemical properties. , ... how oxygen affects the surface of a perovskite manganite, ... behavior. The new avenue to understand surface behavior could ...
Breaking Biology Technology:Biological Drugs Market: Global Industry Analysis, Size, Share, Growth, Trends and Forecast 2014 - 2020 2Biological Drugs Market: Global Industry Analysis, Size, Share, Growth, Trends and Forecast 2014 - 2020 3Scientists Burst onto Influential List for Combustion Research 2Scientists Burst onto Influential List for Combustion Research 3Scientists Burst onto Influential List for Combustion Research 4FAA Grants Comment Extension at the Request of AMA 2ORNL study reveals new characteristics of complex oxide surfaces 2
... 2011 Operational and Financial Results ... ... --> ... var first_result; // Results are keyed by longUrl, so we need to grab the first one. for (var r ...
... Nov. 11, 2010 StemCyte, Inc., one of the ... companies, is proud to announce that the Company has ... U.S. Internal Revenue Service,s Qualifying Therapeutic Discovery Project (QTDP) ... fewer than 250 employees. The Patient Protection ...
... (Nasdaq: ARAY ), a global leader in the ... to present at the Lazard Capital Markets, Healthcare Conference in ... a.m. ET/7:30 a.m. PT. A live webcast of ... page of the Company,s Web site at http://www.accuray.com . ...
Cached Biology Technology:YM BioSciences Reports Fiscal First Quarter 2011 Operational and Financial Results 2YM BioSciences Reports Fiscal First Quarter 2011 Operational and Financial Results 3YM BioSciences Reports Fiscal First Quarter 2011 Operational and Financial Results 4YM BioSciences Reports Fiscal First Quarter 2011 Operational and Financial Results 5YM BioSciences Reports Fiscal First Quarter 2011 Operational and Financial Results 6YM BioSciences Reports Fiscal First Quarter 2011 Operational and Financial Results 7YM BioSciences Reports Fiscal First Quarter 2011 Operational and Financial Results 8YM BioSciences Reports Fiscal First Quarter 2011 Operational and Financial Results 9YM BioSciences Reports Fiscal First Quarter 2011 Operational and Financial Results 10YM BioSciences Reports Fiscal First Quarter 2011 Operational and Financial Results 11YM BioSciences Reports Fiscal First Quarter 2011 Operational and Financial Results 12YM BioSciences Reports Fiscal First Quarter 2011 Operational and Financial Results 13YM BioSciences Reports Fiscal First Quarter 2011 Operational and Financial Results 14StemCyte Awarded $488,950 for Advanced Therapeutic Applications of Umbilical Cord Blood Stem Cells from the Qualifying Therapeutic Discovery Project (QTDP) 2Accuray Incorporated to Speak at Seventh Annual Lazard Capital Markets' Healthcare Conference 2
(Date:7/24/2014)... Bhavani Iyer, O.D., a low vision specialist at The ... Medical School, has been awarded a grant to help ... with eyeglasses, medication or surgery. , Even with corrective ... at best. However, there are a variety of low ... to help offset their vision loss. , Iyer is ...
(Date:7/24/2014)... experts gathered at NJIT this week for an all-day ... U.S. Environmental Protection Agency (EPA) to dredge toxic sediment ... , The EPA has called the plan, which proposes ... capping sections of the riverbed, one of the largest ... be dredged and disposed off-site. , "We need to ...
(Date:7/24/2014)... To reduce fire hazard in the United States, wildland ... woody shrubs and suppressed trees (ladder fuels). These ... periods of low fire danger in order to dispose ... hazardous air pollutants, managers often cover all or part ... referred to as agricultural plastic, in order to keep ...
Breaking Biology News(10 mins):UTHealth Dr. Bhavani Iyer awarded low vision grant 2Experts Weigh the Pros and Cons of a $1.7 Billion EPA Cleanup Plan for the Passaic River at an NJIT 2Study gives new perspective on agricultural plastic, debris burning, and air quality 2
... to the growing list of genetic variants that determine ... by Cell Press on December 30 in the ... previously unknown variants associated with height and might provide ... Although environmental variables can impact attained adult height, ...
... large quantities of nitrate-rich fertilizer to realize optimal ... to balance the amount of nitrogen needed for ... leach into ground and surface waters. Increased interest ... to identify genotypes that have a characteristic called ...
... producers have traditionally relied heavily on hand thinning, a ... increasing labor costs and a limited workforce, peach and ... such as string thinners to minimize the need for ... promising results when it was evaluated in four U.S. ...
Cached Biology News:Large-scale analysis identifies new genetic alterations associated with height 2Improving nitrogen use efficiency lessens environmental impact 2Hybrid string blossom thinner tested in peach orchards 2
Preparation Note: Prepared by method of Wimmer, E., et al., Biochemistry, 7, 2623 (1968). Quality Clarifier: Acceptor Activity: approx. 1000 picomoles phenylalanine per A 260 unit (not determined b...
... which is based on a new flow-through technology, ... in situ hybridization of tissues on microscope slide ... study of gene expression, in situ hybridization (ISH) ... can be used to validate and confirm results ...
... Array Analyst Software has been optimized for ... algorithms allow the software to quickly and ... each well of an ELISA plate or ... Analyst Software has been customized to incorporate ...
... products feature a dual strength adhesive system which ... use. The adhesives on either side of the ... adheres to the glass has an easy release ... coverslip, forms a stronger bond. This means that ...
Biology Products: