Navigation Links
Rice uses light to remotely trigger biochemical reactions
Date:12/13/2012

through gallons of solvent to make a milligram of product, even if you happen to be able to sell it for a lot of money."

For industry, the potential energy savings alone may make the Rice process worth investigating. "Here we're using 'free' energy," Wong said. "Instead of needing a big boiler to produce steam, you turn on an energy-efficient light bulb, like an LED. Or open a window."

The particle at the center of the process is a gold nanorod about 10 nanometers wide and 30 long that heats up when hit with near-infrared light from a laser. The rods are just the right size and shape to react to light at around 800 nanometers. The light excites surface plasmons that ripple like water in a pool, in this case emitting energy as heat.

Halas' Rice lab is famous for pioneering the use of gold nanoshells (a related material) to treat cancer by targeting tumors with particles that are bulk heated to kill tumors from the inside. The therapy is now in human trials.

The new research takes a somewhat different tack by heating nanoparticles draped with a model thermophilic enzyme, glucokinase, from Aeropyrum pernix. A. pernix is a microbe discovered in 1996 thriving near hot underwater vents off the coast of Japan. At around 176 degrees Fahrenheit, A. pernix degrades glucose, a process necessary to nearly every living thing. The enzyme can be heated and cooled repeatedly.

In their experiments, Blankschien and Pretzer cloned, purified and altered glucokinase enzymes so they would attach to the gold nanoparticles. The enzyme/nanoparticle complexes were then suspended in a solution and tested for glucose degradation. When the solution was heated in bulk, they found the complexes became highly active at 176 degrees, as expected.

Then the complexes were encapsulated in a gel-like bead of calcium alginate, which helps keeps the heat in but is porous enough to allow enzymes to react with materials around it. Under bulk heating,
'/>"/>

Contact: David Ruth
david@rice.edu
713-348-6327
Rice University
Source:Eurekalert  

Page: 1 2 3 4

Related biology news :

1. Dark Ages scourge enlightens modern struggle between man and microbes
2. Lyncean Technologies Inc. sells Compact Light Source to Munich biomedical-imaging research center
3. Study sheds light on how cells transport materials along crowded intercellular highways
4. Potential gene therapy approach to sickle cell disease highlighted at ASH
5. Wildfires light up western Australia
6. Integrated Biometrics Introduces Sherlock The Worlds Lightest, Thinnest, Smallest, Appendix F Mobile ID Fingerprint Sensors
7. Hogging the spotlight: South Farms pig gets international attention
8. Tiny algae shed light on photosynthesis as a dynamic property
9. West coast log exports up slightly in third quarter of 2012
10. Model sheds light on the chemistry that sparked the origin of life
11. Wake Forest Baptist Marks 20th Anniversary of Star Lighting at Annual Ceremony
Post Your Comments:
*Name:
*Comment:
*Email:
Related Image:
Rice uses light to remotely trigger biochemical reactions
(Date:10/29/2014)... German . ... Peter Schlögelhofer at the Max F. Perutz Laboratories (MFPL) ... of Vienna dived into the process of meiosis in ... an inversion of the standard meiotic phases. The researchers ... Nature Communications . , Meiosis is the two-step series ...
(Date:10/29/2014)... October 29, 2014 – Ghrelin is a hormone released ... intake. Alcohol is commonly viewed as a psychoactive substance ... a highly caloric food. , This knowledge, combined ... hypothesis that ghrelin has the potential to stimulate alcohol ... this in humans and found that, as they had ...
(Date:10/28/2014)... North America, Europe and China have published a paper ... Sciences that reveals important details about key transitions ... From strange and exotic algae, mosses, ferns, trees and ... and vegetables we eat and the ornamental plants adorning ... a billion years of history., "Our study generated DNA ...
Breaking Biology News(10 mins):Meiotic cell division 'the other way round' 2Ghrelin stimulates an appetite for drinking alcohol 2New study uses DNA sequences to look back in time at key events in plant evolution 2New study uses DNA sequences to look back in time at key events in plant evolution 3
... replacements, biomaterials have become big business. But scientists pursuing ... How will a biomaterial on the lab bench actually ... the new material or suffer an inflammatory response? And ... , To tackle such questions, researchers at the ...
... mechanisms is the neural machinery that triggers the hungry ... same machinery swings the other way after a hearty ... of the siesta. However, scientists have understood little about ... and other energy-related behaviors. , Now, in an article ...
... of the species known as social amoebas has been plotted ... clues to the evolution of life on earth. , Researchers, ... of York, and biochemist Professor Pauline Schaap, of the University ... 100 or so known species of social amoeba. , ...
Cached Biology News:Finding the right mix: A biomaterial blend library 2New mechanism explains glucose effect on wakefulness 2New mechanism explains glucose effect on wakefulness 3Scientists' cell discovery unearths evolutionary clues 2Scientists' cell discovery unearths evolutionary clues 3
(Date:10/30/2014)... 2014 Global polyvinyl chloride (PVC) demand ... crisis during 2008-2009, especially in North America and Europe. ... is keeping to a growing trend. , The largest ... in the construction segment. In 2013, the key PVC ... sheets and rigid film. Moreover, the PVC was consumed ...
(Date:10/30/2014)... October 30, 2014 SoundConnect ... provider, offers Office 365 end users the key ... complete phone system by adding voice enablement and ... includes Lync Online, a communication tool that includes ... With hosted voice, O365 becomes a comprehensive unified ...
(Date:10/30/2014)... Ottawa, Ontario (PRWEB) October 30, 2014 ... the Spartan RX CYP2C19 System . It detects ... a non-invasive cheek swab. , The Spartan RX CYP2C19 ... medicine that has been approved in Canada. Due to ... that it may be used by healthcare professionals such ...
(Date:10/30/2014)... Grace Century portfolio project, Provia Laboratories ... of the Board, to the National Stem Cell Ethics ... made by the Ministry of Health on behalf of the ... , More than a year after Bahamian Parliament passed the ... Perry Christie said the government has completed the accompanying regulations ...
Breaking Biology Technology:Global Polyvinyl Chloride Demand Is on Upward Trend Now, Says Merchant Research & Consulting in Its Topical Study 2Global Polyvinyl Chloride Demand Is on Upward Trend Now, Says Merchant Research & Consulting in Its Topical Study 3SoundConnect Launches Voice Enablement and Hybrid Audio Conferencing for Office 365 2SoundConnect Launches Voice Enablement and Hybrid Audio Conferencing for Office 365 3Health Canada approves first near-patient DNA test for personalized medicine 2Health Canada approves first near-patient DNA test for personalized medicine 3Grace Century’s Stem Cell Biobank Project Announces Chairman’s Appointment to National Stem Cell Ethics Committee of The Bahamas 2Grace Century’s Stem Cell Biobank Project Announces Chairman’s Appointment to National Stem Cell Ethics Committee of The Bahamas 3
... Bharat Renewable Energy Ltd (BREL) , a ... has initiated a program with SG Biofuels (SGB) ... for the production of biodiesel in India. ... to produce high performing hybrid varieties of Jatropha adapted ...
... at the University of Pittsburgh School of Dental Medicine ... which could lead to novel nanoscale approaches to developing ... the Proceedings of the National Academy of Sciences ... in the body and combines high hardness with resilience, ...
... NeoStem, Inc. (NYSE Amex: NBS ) ... a focus on cell based therapeutics development, today announced ... Research Program (PRMRP) of the Office of the Congressionally ... to be applied towards funding the Company,s VSEL™ Technology. ...
Cached Biology Technology:Bharat Renewable Energy Forms Alliance With SG Biofuels to Deploy Jatropha Hybrids for Biodiesel in India 2NeoStem Announces the Receipt of Over $1,700,000 in DOD Funding for its VSEL™ Technology Being Developed to Treat Osteoporosis 2NeoStem Announces the Receipt of Over $1,700,000 in DOD Funding for its VSEL™ Technology Being Developed to Treat Osteoporosis 3NeoStem Announces the Receipt of Over $1,700,000 in DOD Funding for its VSEL™ Technology Being Developed to Treat Osteoporosis 4
Mouse Wnt-9b Affinity Purified Polyclonal Ab Keywords: Wnt 9b Protein Family: Cancer Stem Cell Markers, Wnt Ligands...
One-step, microplate or cuvet, colorimetric, linear detection range 0.7 mg/dL to 35 mg/dL. Procedure: 5 min....
assays for phosphatase, lipase, nucleoside triphosphatases (ATPase, GTPase etc). HTS and follow up studies for phosphatase inhibitors. Quantitation of phosphate content in protein, lipids, and DNA....
...
Biology Products: