Navigation Links
Gold nanostar shape of the future
Date:11/6/2008

DURHAM, N.C. Rods, cones, cubes and spheres move aside. Tiny gold stars, smaller than a billionth of a meter, may hold the promise for new approaches to medical diagnoses or testing for environmental contaminants.

While nanoparticles have been the rage across a wide spectrum of sciences, a new study by Duke University bioengineers indicates that of all the shapes studied to date, stars may shine above all the rest for certain applications.

The key is light, and how that light reflects off the particles. Compared to the other shapes, nanostars can dramatically enhance the reflected light, the Duke scientists found. This increases their potential usefulness as a tracer, label, or contrast agent.

Since the researchers also found that the size and shape of the nanostars affect the spectrum of reflected light, they believe that these tiny nanostars can also be "tuned" to identify particular molecules or chemicals.

"To our knowledge, this is the first report of the development and use of gold nanostars as labels for molecular detection and description of their controlled synthesis with different sizes and shapes" said Chris Khoury, lead author of a paper published on-line in the Journal of Physical Chemistry. Khoury is a graduate student in biomedical engineering working in the laboratory of senior researcher Tuan Vo-Dinh, R. Eugene and Susie E. Goodson Distinguished Professor of Biomedical Engineering and director of The Fitzpatrick Institute for Photonics at Duke.

In the Duke experiments, the nanostars were used in conjunction with a phenomena first described in the 1970s known as surface-enhanced Raman scattering (SERS). When light, usually from a laser, is shined on a sample, the target molecule vibrates and scatters back in its own unique light, often referred to as the Raman scatter. However, this Raman response is extremely weak. When the target molecule is coupled with a metal nanoparticle or nanostruct
'/>"/>

Contact: Richard Merritt
richard.merritt@duke.edu
919-660-8414
Duke University
Source:Eurekalert

Page: 1 2 3

Related biology technology :

1. Superbugs, shapes and nanotechnology
2. Sol-gel inks produce complex shapes with nanoscale features
3. Halogen Customers Shape Industry-Leading Employee Performance and Talent Management Solution
4. Foldable and stretchable, silicon circuits conform to many shapes
5. ShapeGrabber and Nikon Instruments Inc. Announce Distribution Agreement
6. Tiny refrigerator taking shape to cool future computers
7. Metals shape up with a little help from friends
8. UltraShape Appoints Assaf Eyal as President & CEO
9. Amoena Helps Women Re-shape Their Lives After Breast Cancer Surgery
10. Novel Angiogenic Drugs, Including a Future Blockbuster from Genzyme, Could Revolutionize Treatment of Peripheral Arterial Disease
11. Advancements in Population Age and Technology Drive Future of Orthopedic Materials Market
Post Your Comments:
*Name:
*Comment:
*Email:
(Date:4/16/2015)... and OSAKA, Japan ... Cell Research Application (CiRA) of Kyoto University and ... they will work together to develop clinical applications ... as heart failure, diabetes mellitus, neurological disorders and ... Cell Applications" (T-CiRA) is designed to expedite multiple ...
(Date:4/16/2015)... Irvine, CA (PRWEB) April 16, 2015 ... in the Buzz of BIO Contest for ... Industry Organization (BIO), the 2015 BIO International Convention will ... in Philadelphia, Pennsylvania. During the Buzz of BIO contest, ... like to see present at the conference. The community ...
(Date:4/16/2015)... April 16, 2015 OncoTAb, ... Charlotte (UNC Charlotte) spin-out company, announced today the ... Ph.D., M.D., as Chief Operating Officer (COO). Cooper ... experience in developing clinical diagnostic and biotechnology platforms ... disease. , Cooper’s extensive career transcends the field ...
(Date:4/16/2015)... 2015  RegeneRx Biopharmaceuticals, Inc. (OTCQB: RGRX) ("the ... venture with G-treeBNT (ReGenTree LLC) has retained Ora, ... for the orphan disorder, neurotrophic keratopathy (NK), and ... syndrome (DES) in the U.S.  Both trials will ... year.  Each of these eye disorders was being ...
Breaking Biology Technology:CiRA and Takeda Enter 10-year Collaboration on iPS Cell Research 2CiRA and Takeda Enter 10-year Collaboration on iPS Cell Research 3Proove Bisociences to Participate in the Buzz of BIO at the 2015 BIO International Convention 2Proove Bisociences to Participate in the Buzz of BIO at the 2015 BIO International Convention 3OncoTAb Names Dr. David L. Cooper as COO 2RegeneRx JV Retains Ora, Inc. to Conduct Phase 3 Trial for NK and Phase 2b/3 Trial for Dry Eye Syndrome in U.S. 2RegeneRx JV Retains Ora, Inc. to Conduct Phase 3 Trial for NK and Phase 2b/3 Trial for Dry Eye Syndrome in U.S. 3RegeneRx JV Retains Ora, Inc. to Conduct Phase 3 Trial for NK and Phase 2b/3 Trial for Dry Eye Syndrome in U.S. 4RegeneRx JV Retains Ora, Inc. to Conduct Phase 3 Trial for NK and Phase 2b/3 Trial for Dry Eye Syndrome in U.S. 5
... Research Group plc (AIM:,PRG) announces the appointment of ... Resources. Mr. Keenen will be responsible for setting ... the,effectiveness of Premier Research,s people and organization in ... McCall, COO, commented: "We are very pleased to ...
... biometrics access control ... approved products list for airports, TORONTO, Sept. 18 /PRNewswire-FirstCall/ ... control technology, today announced,that its V-Station MIFARE V9.50 has been ... TSA,s "Biometrics for,Access Control" Qualified Products List (QPL). Products ...
... BOSTON, Sept. 18 PAREXEL Consulting, a,business unit ... a leading global,life sciences consultancy serving the bio/pharmaceutical ... strengthening its Good Manufacturing,Practice (GMP) capabilities in Europe ... European Union (EU) directives in areas such as,manufacturing ...
Cached Biology Technology:Premier Research Appoints Global Head of Human Resources 2Bioscrypt's V-Station MIFARE Placed on Transportation Security Administration's Qualified Products List 2Bioscrypt's V-Station MIFARE Placed on Transportation Security Administration's Qualified Products List 3Parexel Consulting Strengthens Good Manufacturing Practice Capabilities in Europe 2Parexel Consulting Strengthens Good Manufacturing Practice Capabilities in Europe 3Parexel Consulting Strengthens Good Manufacturing Practice Capabilities in Europe 4Parexel Consulting Strengthens Good Manufacturing Practice Capabilities in Europe 5Parexel Consulting Strengthens Good Manufacturing Practice Capabilities in Europe 6
(Date:3/20/2015)... , March 20, 2015 NXT-ID, Inc. (NASDAQ: ... authentication company focused on the growing mobile commerce market, ... is one of the products featured in 2015 "I ... at 11:00 PM EST on the DIY Network.   ... Las Vegas , site of the 2015 ...
(Date:3/19/2015)... , March 19, 2015  NXT-ID, Inc. (NASDAQ: ... company focused on the growing mobile commerce market, announces its ... a news clip that aired this week on ... . In a segment "The Next Great Thing", ... ,a new way to pay, and ,a really big breakthrough ...
(Date:3/17/2015)... MINNETONKA, Minn. , March 17, 2015 /PRNewswire/ ... sciences technology company specializing in clinical study management ... will be in attendance at ARENA,s Outsourcing in ... Cary, NC.  This event provides an excellent forum ... company,s easy-to-use, flexible and affordable software-as-a-service (SaaS) eClinical ...
Breaking Biology News(10 mins):NXT-ID's Wocket Biometric Smart Wallet to Air on "I Want That" International CES Special 2NXT-ID's Wocket Biometric Smart Wallet to Air on "I Want That" International CES Special 3NXT-ID's Wocket Smart Wallet Featured on Fox News Segment, "The Next Great Thing" 2NXT-ID's Wocket Smart Wallet Featured on Fox News Segment, "The Next Great Thing" 3Connect With MedNet Solutions At Outsourcing In Clinical Trials Southeast 2
... -- Reseachers at The Ohio State University have ... an effective method for preserving the important genetic diversity ... geranium, are some of the most popular flowers the ... Society listed more than 3,000 varieties of geranium in ...
... -- Two common dietary molecules found in legumes ... effects of radiation, researchers from the University of ... both human skin cells and a skin cancer-prone ... the damaging radiation found in sunlight, the team ...
... scientists today announced the results of a systematic effort ... worlds leading cause of cancer deaths. Appearing in the ... the research provides a comprehensive view of the abnormal ... 50 genomic regions that are frequently gained or lost ...
Cached Biology News:'TRAP' preserves genetic properties of popular geranium 2Antioxidants could provide all-purpose radiation protection 2Antioxidants could provide all-purpose radiation protection 3Genome study charts genetic landscape of lung cancer 2Genome study charts genetic landscape of lung cancer 3
...
... Gene expression profiling allows a high-throuput ... that naturally occuring or artifitially induced changes ... in that system can be detected, studied, ... a broad range of genes at a ...
Rabbit polyclonal to Esa1 ( Abpromise for all tested applications)....
RORgamma (S-14)...
Biology Products: