HOME >> BIOLOGY >> NEWS
Story tips from the Department of Energy's Oak Ridge National Laboratory, January 2007

NANOSCIENCE -- Atom-scale switch . . .

?

ORNL researchers performing basic research have discovered a carbon nanotube-based system that functions like an atom-scale switch. Their approach is to perform first-principles calculations on positioning a molecule inside a carbon nanotube to affect the electronic current flowing across it. The result is an electrical gate at the molecular level: In one position, the molecular gate is open, allowing current through; in another position, the gate is closed, blocking the current. In a silicon chip, the gate is a silicon oxide barrier within the structure of the chip. In the ORNL model, the gate is a short molecule --encapsulated inside the carbon nanotube-- that is about one nanometer in size, or three orders of magnitude smaller than a silicon chip. The paper is slated to appear in the Feb 2 Physical Review Letters.

[Contact: Bill Cabage, (865) 574-4399; cabagewh@ornl.gov]

ENERGY -- Microbial cost savings . . .

A tiny microbe may hold the key to simpler, lower-cost production of ethanol from biomass sources such as trees, grasses and cornstalks. Oak Ridge National Laboratory researchers are studying a bacterium known as Clostridium thermocellum, which has the ability to both degrade cellulose -- cellulose makes up the cell walls of plants -- into sugars and then ferment these sugars into alcohol, or ethanol. Today's production methods involve a costly, multi-step, enzyme-and-yeast-based process that would price the fuel at more than $2.20 per gallon. A group of ORNL researchers headed by Jonathan Mielenz is studying gene expression in this microbe to determine how these enzymatic functions are performed, revealing strategies for further reducing the cost of ethanol production. Within five years, researchers hope to demonstrate their process enhancements on an industrial scale.

[Contact: Larisa Brass, (865) 574-4163;

Contact: Ron Walli
wallira@ornl.gov
865-576-0226
DOE/Oak Ridge National Laboratory
18-Jan-2007


Page: 1 2 3

Related biology news :

1. Story tips from the US Department of Energys Oak Ridge National Laboratory, August 2007
2. Story tips from the Department of Energys Oak Ridge National Laboratory
3. Story ideas from Molecular & Cellular Proteomics
4. Story ideas from the Journal of Lipid Research
5. Story ideas from the Journal of Biological Chemistry
6. Story ideas from the Journal of Lipid Research
7. Story tips from the Department of Energys Oak Ridge National Laboratory, April 2007
8. Story tips from the Department of Energys Oak Ridge National Laboratory, March 2007
9. Story tips from the Department of Energys Oak Ridge National Laboratory
10. Story tips from the Department of Energys Oak Ridge National Laboratory, November 2006
11. Story tips from the Department of Energys Oak Ridge National Laboratory, October 2006

Post Your Comments:
*Name:
*Comment:
*Email:


(Date:5/28/2020)... INDIANAPOLIS (PRWEB) , ... May 27, 2020 , ... ... of hc1 Workforce Advisor™ , a solution that uniquely combines lab testing ... to help employers systematically support the ongoing health and safety of employees returning ...
(Date:5/26/2020)... ... May 26, 2020 , ... ... software solutions for biopharmaceutical R&D, today announced that Gritstone Oncology, Inc., a ... (TCR)-mimetic bispecific T cell engagers and TCR-based therapeutics, has implemented Genedata ...
(Date:5/21/2020)... , ... May 19, 2020 ... ... leading software-as-a-service (SaaS) provider of operations management solutions, today introduced BioMed to ... provides a cloud-based platform for connecting the people and systems around biomedical ...
Breaking Biology News(10 mins):
(Date:6/11/2020)... GREENBELT, Md. (PRWEB) , ... June 09, 2020 ... ... announced today the release of the NEON Micro-Tracer Solution, a highly ... to the COVID-19 virus in the workplace. Contact tracing, a core disease control ...
(Date:6/3/2020)... ... June 03, 2020 , ... ... applications of biofeedback. In the next installment, Dr. Inna Khazan will discuss the ... learn to bring their attention to the feelings, thoughts, and emotions they are ...
(Date:5/30/2020)... ... 29, 2020 , ... Medrio, Inc., the leading provider of ... enabled Cytovale, Inc., a medical technology company dedicated to revolutionizing diagnostics for conditions ... patient in (FPI) in just seven days. The Cytovale technology will allow patients ...
(Date:5/28/2020)... ... May 28, 2020 , ... Genedata, ... release of Genedata Screener ® 17.0, the latest version of its enterprise ... in-vitro screening assay technologies. Genedata will host a webinar on June 10, 2020, ...
Breaking Biology Technology:
Cached News: