Navigation Links
Tiny probes shine brightly to reveal the location of targeted tissues
Date:11/20/2012

ty boost from surface-enhanced Raman scattering, or SERS, is potentially huge. "It's well-known that if you sandwich Raman reporters between two plasmonic materials, such as gold or silver, you are going to see dramatic Raman enhancement," Singamaneni says.

Originally his team tried to create intense electromagnetic hot spots by sticking smaller particles onto a larger central particle, creating core-satellite assemblies that look like daisies.

"But we realized these assemblies are not ideal for bioimaging," he says, "because the particles were held together by weak electrostatic interactions and the assemblies were going to come apart in the body."

Next they tried using something called Click chemistry to make stronger covalent bonds between the satellites and the core.

"We had some success with those assemblies," Singamaneni says, "but in the meantime we had started to wonder if we couldn't make an electromagnetic hot spot within a single nanoparticle rather than among particles.

"It occurred to us that if we put Raman reporters between the core and shell of a single particle could we create an internal hotspot."

That idea worked like a charm.

A rainbow of probes carefully dispensing drugs?

The next step, says Singamaneni, is to test BRIGHTS in vivo in the lab of Sam Achilefu, PhD, professor of radiology in the School of Medicine.

But he's already thinking of ways to get even more out of the design.

Since different Raman reporter molecules respond at different wavelengths, Singamaneni says, it should be possible to design BRIGHTS targeted to different biomolecules that also have different Raman reporters and then monitor them all simultaneously with the same light probe.

And he and Gandra would like to combine BRIGHTS with a drug container of some kind, so that the containers could be tracked in the body and the drug and released only when it reached the target tis
'/>"/>

Contact: Diana Lutz
dlutz@wustl.edu
314-935-5272
Washington University in St. Louis
Source:Eurekalert  

Page: 1 2 3

Related biology news :

1. The shape of things to come: NIST probes the promise of nanomanufacturing using DNA origami
2. Not-so-precious: Stripping gold from AFM probes allows better measurement of picoscale forces
3. Rice University researchers optimize photoluminescent probes to study DNA and more
4. New study shines light on barriers to diabetes care in NYC Bangladeshi community
5. Research reveals first evidence of hunting by prehistoric Ohioans
6. Studies reveal structure of EV71, a virus causing childhood illnesses
7. Researchers reveal how a single gene mutation leads to uncontrolled obesity
8. Study reveals how monarch butterflies recolonize northern breeding range
9. Circadian rhythms have profound influence on metabolic output, UCI study reveals
10. Unexpected discovery reveals a new mechanism for how the cerebellum extracts signal from noise
11. Ancient civilizations reveal ways to manage fisheries for sustainability
Post Your Comments:
*Name:
*Comment:
*Email:
Related Image:
Tiny probes shine brightly to reveal the location of targeted tissues
(Date:7/2/2015)... DUBLIN , June 25, 2015 ... the addition of the "Next Generation Biometrics Market ... to 2020" report to their offering. ... $24.4 Billion by 2020, at a CAGR of 17.9% ... is the leading application for the market. Safran ...
(Date:6/26/2015)... 26, 2015 ATL Technology, LLC, a top provider ... in single use solutions, headquartered in Springville, Utah ... California corporation with locations in ... Jose, Costa Rica ). This acquisition will ... with ATL Technology,s existing facility in Costa ...
(Date:6/24/2015)... YORK , June 24, 2015 This ... market, over the next six years. It contains an ... the industry, along with their impact from the short, ... It also discusses the industry, market, and technology trends ... that the need of concerned authorities to efficiently manage ...
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 3ATL Technology Announces Acquisition of MedConx, Inc. and Expanded Global Footprint 2Automatic Identification System Market by Class, by Platform, by Application and by Geography - Global Forecasts & Analysis to 2014 - 2020 2
... have an edge in keeping a healthier balance between the ... before reaching menopause. Premenopausal women are known to have ... afterward their risks are essentially the same as men, says ... at the Medical College of Georgia. The reason appears ...
... populations of Canada,s southern Rockies are a more distinct ... study by University of Calgary researchers that is shedding ... In a study published in the current issue ... Environmental Design PhD candidate Byron Weckworth and his research ...
... (Jan. 28, 2009) Virginia Commonwealth University researchers have ... in regulating mitochondria, the energy-producing machines of cells. This ... new treatments for heart disease to boost energy in ... of cancer. In the study, published online Jan. ...
Cached Biology News:Researchers may have found why women have an edge on salt-sensitive hypertension 2Mountain caribou's ancient ancestry revealed 2
(Date:7/29/2015)... (Q2 2015: +14% CER / 20% of sales) led the regional performance in ... , as well as solid contributions from Korea, India ... Middle East / Africa (Q2 2015: ... , Turkey and the United Kingdom ... excluding U.S. HPV sales, on demand across all customer classes. The top seven ...
(Date:7/29/2015)... ... July 29, 2015 , ... G-CON Manufacturing, Inc., ... of their 2nd generation cell therapy POD® design. The 2nd generation portfolio not ... represents a new POD® design. , “G-CON first offered our miniPOD CT ...
(Date:7/29/2015)... July 29, 2015  Therapath Neuropathology ( www.Therapath.com ... partnerships with VA and Military Medical centers both ... Density (ENFD) and Sweat Gland Nerve Fiber Density ... ( https://therapath.com/skin ). Demonstration of ... (ENFD) on punch skin biopsy is a highly ...
(Date:7/29/2015)... , July 29, 2015 /PRNewswire/ - RepliCel Life Sciences ... regenerative medicine company, is pleased to announce that the ... (RCI-02) have been locked.  Prototypes for industrial and ... for an application for CE mark clearance to ... in 2016. (Photo: http://photos.prnewswire.com/prnh/20150729/248373 ...
Breaking Biology Technology:QIAGEN Reports Results for Second Quarter and First Half of 2015 2QIAGEN Reports Results for Second Quarter and First Half of 2015 3QIAGEN Reports Results for Second Quarter and First Half of 2015 4QIAGEN Reports Results for Second Quarter and First Half of 2015 5QIAGEN Reports Results for Second Quarter and First Half of 2015 6QIAGEN Reports Results for Second Quarter and First Half of 2015 7QIAGEN Reports Results for Second Quarter and First Half of 2015 8QIAGEN Reports Results for Second Quarter and First Half of 2015 9QIAGEN Reports Results for Second Quarter and First Half of 2015 10G-CON Manufacturing Launches Their 2nd Generation Cell Therapy Cleanroom POD® 2G-CON Manufacturing Launches Their 2nd Generation Cell Therapy Cleanroom POD® 3Neuropathology services for VA and Military health systems 2RepliCel Life Sciences Unveils Innovative Dermal Injector Prototype 2RepliCel Life Sciences Unveils Innovative Dermal Injector Prototype 3RepliCel Life Sciences Unveils Innovative Dermal Injector Prototype 4RepliCel Life Sciences Unveils Innovative Dermal Injector Prototype 5
... Oct. 19 The US and European medical technology ... in 2009 but managed to improve overall net income ... financial discipline. While medtech has fared better than many ... put increasing strain on the industry,s long-standing business model. ...
... time scientists have been able to watch nanoparticles grow ... the foundation of nanotechnology and their performance depends on ... able to develop ways to control conditions under which ... range of applications including solar-cell technology and chemical and ...
... Neurocrine Biosciences, Inc. (Nasdaq: NBIX ) announced ... financial results after the Nasdaq market closes on Thursday, October ... and webcast to discuss its financial results and provide a ... Eastern Time (5:30 a.m. Pacific Time). Participants can ...
Cached Biology Technology:Medtech Industry Successfully Weathering Challenges of Economic Downturn 2Medtech Industry Successfully Weathering Challenges of Economic Downturn 3Medtech Industry Successfully Weathering Challenges of Economic Downturn 4Medtech Industry Successfully Weathering Challenges of Economic Downturn 5Breakthrough in nanocrystals growth 2
BD BioCoat BD MatrigelTM Matrix 100 mm Culture Dishes for hepatocytes, tissue-culture treated polystyrene with a uniform application of MATRIGEL Matrix....
...
... internal standard for the quantification of 5-OxoETE ... is a polyunsaturated keto acid formed by ... It stimulates cytosolic calcium levels in neutrophils ... selectively stimulates the migration and degranulation of ...
... a 10.0 kb Autographa californica (AcNPV) polyhedrin ... AcNPV polyhedrin promoter and two AcNPV p10 ... a Sma I cloning site, followed by ... inverted polyhedrin promoter has been inserted containing ...
Biology Products: