HOME >> BIOLOGY >> NEWS
Physics tip sheet #39 - Nov. 17, 2003

1) Ultra-dense data storage from ultra-smooth carbon films
C. Casiraghi et al.
Physical Review Letters (to appear)

Ultra-smooth diamond-like carbon can provide the nanometer-thin corrosion protection layer necessary for ultra-high density magnetic storage devices, report the authors of this paper. As magnetic hard drives increase in density, they need ever-thinner protective carbon films, which must be must be continuous, dense, and free of holes. Until now it was not known whether any material could meet these requirements. The authors demonstrate that the diamond-like carbon, known as tetrahedral amorphous carbon, has the needed smoothness. It could be useful for other applications as well, as it maintains its ultra-smoothness with increasing thickness, unlike other known materials, which get rougher as they get thicker. The paper also develops a theoretical model that shows that the material's extreme smoothness arises from the process of growing the films, in which heat from ions deposited on the surface dissipates, melting and flattening the surface.

Journal article: Available to journalists on request

2) Pond snail brains on a chip
R. Kaul, N. Syed, and P. Fromherz
Physical Review Letters (to appear)

Researchers have used live pond snail nerve cells to implement a basic element of neural memory on a semiconductor chip. The team isolated two neurons from a pond snail and placed them on a silicon chip. They electrically stimulated one cell with a microcapacitor on the chip and recorded the signal transmitted to the other neuron. Repeatedly stimulating the first cell increased the strength of the connection between the cells, just as neurons in the brain strengthen their connections as part of learning and memory formation. The chip may find uses in brain research and drug development, and may eventually lead to neurocomputers with living nerve cells or microchips that could be implanted in th
'"/>

Contact: David Harris
harris@aps.org
301-209-3238
American Physical Society
17-Nov-2003


Page: 1 2 3

Related biology news :

1. Physics gravity model applicable to disease spread
2. Physics tip sheet #42
3. Physics tip sheet #41 - April 5, 2004
4. Physics tip sheet #37
5. Physics tip sheet #36 - July 30, 2003
6. Physics tip sheet #34 - April 1, 2003
7. Physics tip sheet #33 March 28, 2003
8. Physics tip sheet #30 - January 9, 2003
9. Physics tip sheet #29 October 23, 2002
10. Physics tip sheet #21 July 10, 2002
11. Physics tip sheet #20 July 3, 2002

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


(Date:3/30/2017)... , March 30, 2017 Trends, opportunities ... (physiological and behavioral), by technology (fingerprint, AFIS, iris recognition, ... recognition, and others), by end use industry (government and ... immigration, financial and banking, and others), and by region ... , Asia Pacific , and ...
(Date:3/24/2017)... -- The Controller General of Immigration from Maldives Mr. ... have received the prestigious international IAIR Award for the most innovative high ... ... Maldives Immigration Controller ... (small picture on the right) have received the IAIR award for the ...
(Date:3/22/2017)... 21, 2017   Neurotechnology , a provider ... today announced the release of the SentiVeillance ... improved facial recognition using up to 10 surveillance, ... computer. The new version uses deep neural-network-based facial ... it utilizes a Graphing Processing Unit (GPU) for ...
Breaking Biology News(10 mins):
(Date:6/19/2017)... (PRWEB) , ... June 19, 2017 , ... A colony ... among its cells and tissues by delivering pollen and nectar containing nutrients necessary for ... means to stay healthy. , Many recent indicators point to a decline in honey ...
(Date:6/16/2017)... , ... June 16, 2017 , ... ... and analytics solutions, today announced that its Anzo Smart Data Lake® (Anzo ... Technology Solution’ category for the 2017 Software & Information Industry Association (SIIA) CODiE ...
(Date:6/15/2017)... ... June 15, 2017 , ... New resistant soybean ... options for managing Palmer amaranth and other broadleaf weeds resistant to glyphosate. But ... necessary. Auxin herbicides are known to drift and to cause harm to sensitive, ...
(Date:6/15/2017)... PA (PRWEB) , ... June 15, 2017 , ... ... Esther Klein Gallery (EKG) follows an artist’s journey through creative experimentation and interdisciplinary ... 2017 and runs through July 22nd. An opening reception will be held at ...
Breaking Biology Technology:
Cached News: