Navigation Links
Purdue's gold nanorods brighten future for medical imaging

Researchers at Purdue University have taken a step toward developing a new type of ultra-sensitive medical imaging technique that works by shining a laser through the skin to detect tiny gold nanorods injected into the bloodstream.

In tests with mice, the nanorods yielded images nearly 60 times brighter than conventional fluorescent dyes, including rhodamine, commonly used for a wide range of biological imaging to study the inner workings of cells and molecules.

Findings are detailed in a research paper that appeared online last week in Proceedings of the National Academy of Sciences. The paper was written by researchers in Purdue's Weldon School of Biomedical Engineering and the Department of Chemistry.

The nanorods might be used to develop an advanced medical imaging tool for the early detection of cancer, said Ji-Xin Cheng (pronounced Gee-Shin), an assistant professor of biomedical engineering.The gold rods are about 20 nanometers wide and 60 nanometers long, or roughly 200 times smaller than a red blood cell.

Gold nanorods represent a possible way to overcome barriers in developing advanced medical imaging techniques that use light to analyze blood vessels and underlying tissues.

"One obstacle is that light in the visible spectrum does not pass through tissue very well," said Alexander Wei, an associate professor of chemistry who worked with Cheng and other Purdue researchers, including Philip S. Low, a professor of chemistry.

Imaging methods might be developed using laser pulses in longer wavelengths of light, beyond the visible range in a region of the spectrum called near infrared.

"There is a window of light in the near infrared, wavelengths from about 800 to 1,300 nanometers, which could be harnessed for new imaging technologies," Wei said.

Tiny gold rods with a certain "aspect ratio" of length to width shine brightly when illuminated by light in this spectral region. The gold nanorods are ideal
'"/>

Source:Purdue University


Page: 1 2

Related biology news :

1. HIV vaccine trial breaks ground for future research
2. Prozac for future Plants on Mars
3. Plants reveal a secret and bring researchers nearer a cleaner future
4. Report focuses on challenges to unlocking future promise of vaccines
5. Researchers make long DNA wires for future medical and electronic devices
6. New U. of Colorado at Boulder flu chip may help combat future epidemics, pandemics
7. Understanding the oceans microbes is key to the Earths future
8. Tastier tomatoes in the future?
9. Stable polymer nanotubes may have a biotech future
10. Food-crop yields in future greenhouse-gas conditions lower than expected
11. Brighter future for giant panda?
Post Your Comments:
*Name:
*Comment:
*Email:
TAG: Purdue gold nanorods brighten future for medical imaging

(Date:4/24/2014)... Initial treatment for a brain infection caused by fungus could ... due to study by University of Liverpool scientists. , ... often fatal but are relatively neglected in medical research. ... Africa, Australasia and South East Asia and mainly affect people ... people a year. , The University research team has tested ...
(Date:4/24/2014)... Researchers from North Carolina State University and the University ... new ultrasound device that could help identify arterial plaque ... causing heart attack or stroke. , At issue is ... age. Some types of plaque are deemed "vulnerable," meaning ... artery wall and cause heart attack or stroke. , ...
(Date:4/24/2014)... home from Iraq and Afghanistan, post-traumatic stress disorder (PTSD) ... and the culture at-large. Estimates indicate that as many ... Afghanistan suffer from PTSD. New research from the University ... on how PTSD is linked to other diseases in ... has implications beyond the impact of the psychiatric disorder ...
Breaking Biology News(10 mins):Treatment for deadly yeast disease reduced to 3 days 2New ultrasound device may add in detecting risk for heart attack, stroke 2New study links inflammation in those with PTSD to changes in microRNA 2New study links inflammation in those with PTSD to changes in microRNA 3
... 2013 -- In January 2012, the United States Department ... make school lunches more nutritious, which included requiring schools ... either a fruit or vegetable with their purchased lunch. ... healthier lunches. In a new study scheduled for ...
... TAMPA, Florida (Feb. 21, 2013) Cardiovascular disease specialists at ... Research Institute affiliated with the University of South Florida announced ... testing a novel gene therapy for the treatment of heart ... regeneration of heart tissue by encouraging the body to deploy ...
... tissue and organ transplantation for diseases that are caused ... ethical discussions surrounding human embryonic stem cells, a lot ... (iPS cells). However, before this technique can be applied ... safety and efficacy of such iPS cells. VIB scientists ...
Cached Biology News:Smarter lunchrooms make lunch choices child's play 2New therapy for heart failure may enhance body's stem cell response at cardiovascular injury site 2New therapy for heart failure may enhance body's stem cell response at cardiovascular injury site 3Cell therapy a little more concrete thanks to VIB research 2
(Date:1/15/2014)... , Jan. 15, 2014 TaiGen Biotechnology Company, Limited ... agreement with R-Pharm, a leading Russian pharmaceutical company, to ... Russian Federation , Turkey ... States (CIS). Nemonoxacin is a novel antibiotic for the treatment ...
(Date:1/14/2014)... Jan. 14, 2014  3D Communications, a leading provider of strategic communications ... and media events in the United States ... Virginia Cox , JD, is returning to the firm,s ... re-joins 3D after more than two years of service as ...
(Date:1/14/2014)... and BETHESDA, Md. , Jan. 14, ... with two institutes from the National Institutes of Health ... bringing safer, more effective treatments to patients on a ... for Advancing Translational Sciences (NCATS) and the National Eye ...
(Date:1/14/2014)... Rockville, MD (PRWEB) January 14, 2014 ... dedicated to developing innovative information technology solutions for ... other health care stakeholders, announced today the signing ... the US Food and Drug Administration (FDA). ...
Breaking Biology Technology:TaiGen Biotechnology Signed Exclusive License Agreement with R-Pharm for Nemonoxacin (Taigexyn(R)) 2TaiGen Biotechnology Signed Exclusive License Agreement with R-Pharm for Nemonoxacin (Taigexyn(R)) 3TaiGen Biotechnology Signed Exclusive License Agreement with R-Pharm for Nemonoxacin (Taigexyn(R)) 4Former FDA Associate Commissioner Returns To 3D Communications 2Organovo Announces Collaboration with National Institutes of Health 2Organovo Announces Collaboration with National Institutes of Health 3Global Record Systems Announces Research Collaboration Agreement with FDA to Create a Novel “Big Data” Paradigm for Collection of Patient Safety and Outcomes Information 2
... Amylin Pharmaceuticals,Inc. (Nasdaq: AMLN ) will webcast its ... on Monday, April 21, 2008 at 8:30 a.m. ET/5:30,a.m. ... will lead the call. On the same date pre-market, ... 2008., The call will be webcast live through ...
... 15 Excalibur, the new,international investment house launched ... of PIramed to Roche., (Photo: http://www.newscom.com/cgi-bin/prnh/20080415/301189 ... Roche for $185 million means a ,very substantial,cash ... fund created by Sir,Christopher five years ago., ...
... CALGARY, April 15 /PRNewswire-FirstCall/ - Oncolytics Biotech Inc.,(TSX: ... by Dr. Anders,Kolb of the Nemours Center for ... for Pediatric Sarcomas" was,presented today at the American ... is being held in San Diego, California from,April ...
Cached Biology Technology:Amylin Pharmaceuticals to Webcast First Quarter Results 2Excalibur Celebrates PIramed Sale With 'Substantial Cash Return' to Investors 2Oncolytics Biotech Inc. Collaborators Present Reovirus Research for Pediatric Sarcomas at AACR Annual Meeting 2
... purified from egg white. The extinction coefficient , ... in 10 mM phosphate-buffered saline, pH ... sodium azide and 50% glycerol. Avidin (from egg ... is purified by molecular sieving and ...
Request Info...
Request Info...
... CELLection Dynabeads (4.5 m) coated with the ... EpCAM and DNase Releasing Buffer. For ... tumour cells directly from blood, bone marrow ... enriched from bone marrow. Enriched cells are ...
Biology Products: