Navigation Links
Study shows nanoshells ideal as chemical nanosensors

are ball-shaped and consist of a core of non-conducting glass that is covered by a metallic shell, typically either gold or silver. The metal shell "captures" passing light and focuses it, a property that directly leads to the enormous Raman enhancements observed. Furthermore, nanoshells can be "tuned" to interact with specific wavelengths of light by varying the thickness of their shells. This tunability allows for the Raman enhancements to be optimized for specific wavelengths of light. Discovered by Halas at Rice in the 1990s, nanoshells are already being developed for applications including cancer diagnosis, cancer therapy, diagnosis and testing for proteins associated with Alzheimer's disease, drug delivery and rapid whole-blood immunoassay. In the current study, Halas and former graduate student Joseph B. Jackson, now with Nanospectra Biosciences, Inc., created thin films of nanoshells deposited atop plates of glass. Films with various densities were studied, as were films containing both silver and gold nanoshells. Through painstaking analysis, Halas and Jackson showed that the nanoshells' 10 billion-fold increase in Raman effect was due entirely to the interactions of light with individual nanoshells. This is markedly different from the pattern exhibited by pure gold or silver nanoparticle films. In that case, the Raman enhancement is an aggregate effect, due to the presence of localized "junctions" or "hot spots" between metallic regions of the metallic film substrate. The finding that individual nanoshells can vastly enhance the Raman effect opens the door for biosensor designs that use a single nanoshell, something that could prove useful for engineers who are trying to probe the chemical processes within small structures such as individual cells, or for the detection of very small amounts of a material, like a few molecules of a deadly biological or chemical agent.
'"/>

Source:Eurekalert


Page: 1 2

Related biology news :

1. Novel Asthma Study Shows Multiple Genetic Input Required; Single-gene Solution Shot Down
2. Emory Study Tests Bone Marrow Stem Cells to Improve Circulation in Legs
3. UCLA Study Shows One-Third of Drug Ads in Medical Journals Do Not Contain References Supporting Medical Claims
4. Study Demonstrates Gene Expression Microarrays are Comparable and Reproducible
5. Study Links Ebola Outbreaks To Animal Carcasses
6. Breakthrough Microarray-based Technology for the Study of Cancer
7. NYU Study Reveals How Brains Immune System Fights Viral Encephalitis
8. Study finds more than one-third of human genome regulated by RNA
9. Leukemia Drug Breakthrough Study In New England Journal Of Medicine
10. Study identifies predictors of HIV drug resistance in patients beginning triple therapy
11. New Study from Affymetrix Laboratories Points to Changing View of How Genome Works
Post Your Comments:
*Name:
*Comment:
*Email:
TAG: Study shows nanoshells ideal chemical nanosensors

(Date:7/2/2015)... 25, 2015 Research and ... "Next Generation Biometrics Market by Application, Technology, Function ... to their offering. The next generation biometrics ... at a CAGR of 17.9% between 2015 and 2020 ... for the market. Safran SA ( ...
(Date:6/29/2015)... 2015 Research and Markets( ... "Latin America Biomedical Sensors Market - Growth, Trends & ... The Latin America Biomedical Sensors market is estimated at ... over the period 2014-2020 The near future ... genetic formulation of each individual. These sensors can be ...
(Date:6/25/2015)... N.J. , June 25, 2015  TAKE Solutions ... a patent by the United States Patent and Trademark ... Standardization". This process leverages TAKE Solutions, Clinical Accelerators to ... over 50% (when compared to standardization without the accelerators), ... At the heart of ...
Breaking Biology News(10 mins):Next Generation Biometrics Market 2015 - Global Forecast to 2020 with Safran, NEC, 3M Cogent, Fujitsu & Suprema Dominating the $24 Billion Market 2Next Generation Biometrics Market 2015 - Global Forecast to 2020 with Safran, NEC, 3M Cogent, Fujitsu & Suprema Dominating the $24 Billion Market 3Latin America Biomedical Sensors Market Report 2015-2020 2TAKE Solutions Awarded Patent By USPTO 2
... new and environmentally friendly process for producing biodiesel fuel ... pounds of poultry industry waste that accumulate annually in ... the July 22 issue of ACS, Journal of ... In the study Mano Misra, Susanta Mohapatra, Narasimharao Kondamudi, ...
... Applying biological molecules from cell membranes to the ... the very basics of cell-to-cell interaction. Two ... biophysicist and colleagues suggest that putting lipids and ... lead to new classes of self-assembling materials for ...
... defective mitochondrial protein called MCLK1 produce elevated amounts of ... according to a study in this week,s JBC these ... longer than normal mice. Mitochondrial oxidative stress is ... reactive oxygen species produced by mitochondria while they make ...
Cached Biology News:New windows opened on cell-to-cell interactions 2New windows opened on cell-to-cell interactions 3
(Date:7/7/2015)... ... 07, 2015 , ... CSM, a leading clinical trial supply company, today announced ... has an extensive background in financial management and accounting, bringing over 20 years of ... role, Morse will oversee all financial areas of the company to both strengthen CSM’s ...
(Date:7/6/2015)... ... July 06, 2015 , ... ... recently hosted their 2015 bi-annual Pain Management Medical Advisory Board meeting in Palm ... Biosciences’ executive Research and Development team to discuss new clinical practice and research ...
(Date:7/6/2015)... Calif. , July 6, 2015  Viveve Medical, Inc. ... that Patricia Scheller , Viveve,s Chief Executive Officer, and ... live at VirtualInvestorConferences.com on July 9, 2015. , ... 2015 , , , , TIME:     , ... LINK: , , , http://tinyurl.com/viveve   , ...
(Date:7/3/2015)... WIEN , July 3, ... Tiedemiehet voivat hakea verkossa osoitteessa  ... for Open Innovation in Science" ... Ludwig Boltzmann Gesellschaftin (LBG) tekemän, ... tutkimuksen mukaan terveystieteiden kaksi suurinta ...
Breaking Biology Technology:CSM Appoints Michael Morse as Vice President of Finance 2Proove Biosciences Gathers Key Opinion Leaders in Pain Management for Medical Advisory Board Meeting in Palm Springs, California 2Proove Biosciences Gathers Key Opinion Leaders in Pain Management for Medical Advisory Board Meeting in Palm Springs, California 3Viveve to Webcast Live at VirtualInvestorConferences.com 2Viveve to Webcast Live at VirtualInvestorConferences.com 3Maailman ensimmäinen tiedemiesten koulutukseen suunniteltu avoimen innovaation ohjelma käynnistyy 2Maailman ensimmäinen tiedemiesten koulutukseen suunniteltu avoimen innovaation ohjelma käynnistyy 3
... - Oncothyreon Inc. (Nasdaq: ONTY ) announced ... Officer, will present at the 5th Annual JMP Securities ... 2010, at 10:30 a.m. Eastern Time. A ... be accessible by visiting the Oncothyreon website www.oncothyreon.com ...
... 27 Cellectis bioresearch, the specialist in genome customization ... announce the launch of its e-store, with approximately one ... new functional and intuitive website. Launched in ... of targeted integration kits, which offer a simple, effective ...
... Inspire MD Announce the MASTER (MGUARD for Acute ST Elevation Reperfusion)... -- TCT 2010, WASHINGTON, September 24, ... ... if (typeof(lpUnit)==,undefined,) var lpUnit=,PRN,; --> ... BitlyCB.alertResponse = function(data) { var s = ,; var first_result; // Results are keyed by longUrl, so ...
Cached Biology Technology:Cellectis Bioresearch Announces Availability of Research Kits Through New Online E-Store 2Cellectis Bioresearch Announces Availability of Research Kits Through New Online E-Store 3Inspire MD Announce the MASTER (MGUARD for Acute ST Elevation Reperfusion) Randomized Trial in TCT2010. Study Chairman Will be Dr. Gregg Stone 2Inspire MD Announce the MASTER (MGUARD for Acute ST Elevation Reperfusion) Randomized Trial in TCT2010. Study Chairman Will be Dr. Gregg Stone 3Inspire MD Announce the MASTER (MGUARD for Acute ST Elevation Reperfusion) Randomized Trial in TCT2010. Study Chairman Will be Dr. Gregg Stone 4Inspire MD Announce the MASTER (MGUARD for Acute ST Elevation Reperfusion) Randomized Trial in TCT2010. Study Chairman Will be Dr. Gregg Stone 5Inspire MD Announce the MASTER (MGUARD for Acute ST Elevation Reperfusion) Randomized Trial in TCT2010. Study Chairman Will be Dr. Gregg Stone 6Inspire MD Announce the MASTER (MGUARD for Acute ST Elevation Reperfusion) Randomized Trial in TCT2010. Study Chairman Will be Dr. Gregg Stone 7
...
Normal Hamster Serum...
... The P5T Series Short Stroke Thrust ... stroke applications where mounting envelopes are limited ... wear bands and internal bumpers provide millions ... applications., Choice of composite bushings or ...
Alkaline Phosphatase (E. coli C75), 100 units. Removes 5'-phosphates from DNA. Category: Nucleotides & Enzymes & Biochemicals, Modifying Enzymes, Alkaline Phosphatases....
Biology Products: