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:11/12/2019)... GREEN, Ohio (PRWEB) , ... ... ... Engineered Products , a global leader in the design and manufacturer of ... selection of seating and adjustable footrests compliant with Healthier Hospital Initiative guidelines. ...
(Date:11/11/2019)... ... November 11, 2019 , ... ... microbial identification, played a key role in the award-winning study “Next Generation Sequencing ... Rothman Institute. The molecular diagnostic laboratory processed samples using Next Generation DNA Sequencing ...
(Date:11/6/2019)... (PRWEB) , ... November 06, 2019 , ... ... that Donald Stanski, MD, a senior pharmaceutical industry executive with expertise in clinical ... simulation for drug and disease strategic data analytics, has joined the firm as ...
Breaking Biology News(10 mins):
(Date:11/5/2019)... ... November 05, 2019 , ... Focal Healthcare , ... for its Fusion Bx 2.0 prostate fusion biopsy solution. By combining information from ... 2.0 will give urologists across Europe the ability to perform targeted transrectal and ...
(Date:11/2/2019)... NEW YORK (PRWEB) , ... October 31, 2019 ... ... just been released by pharma artificial intelligence pioneer tellic. drug360 brings tellic’s ... data. This new tool allows researchers to quickly uncover relationships between genes, diseases, ...
(Date:10/29/2019)... ... October 29, 2019 , ... Modality Solutions, ... sponsorship and cold chain validation workshop at the Biomanufacturing World Summit (BMWS19) Conference, ... California. , The Biomanufacturing World Summit brings together pharmaceutical executives, cutting-edge ...
(Date:10/22/2019)... N.J. (PRWEB) , ... October 22, 2019 , ... Catalent, ... Clinical Supply Services and Drug Product Technologies Integration, will participate in a panel session ... Conference (HPCLC), to be held at the Gwen Hotel, Chicago, on Oct. 28-30, 2019. ...
Breaking Biology Technology:
Cached News: