Factbites
 Where results make sense
About us   |   Why use us?   |   Reviews   |   PR   |   Contact us  

Topic: James Fraser Stoddart


Related Topics

In the News (Mon 4 Jun 12)

  
  Frasers and Tweedies of Tweeddale
The younger brother of Sir Richard Fraser was Sir Alexander Fraser of Corntoun, progenitor of the Frasers of Corntoun, Kinmundie and Muchalls (Lords Fraser).
1296), progenitor of the Frasers of Fruid, Tain, Munlochy, Phopachy, Dunballoch, Newton, Kingillie and Fanellan.
James Tweedie was ordered out of the Kingdoms of Scotland and England and ‘to remain abroad for three years, or during his Majesty’s pleasure, and the parties in dispute should take each other by the hands and bind themselves for the orderly behaviour of themselves, their kin and followers’.
www.electricscotland.com /webclans/minibios/f/frasers_tweedies.htm   (1900 words)

  
 Molecular electronics - Wikipedia, the free encyclopedia
In particular, the development of the scanning tunneling microscope (STM) and later the atomic force microscope (AFM) have facilitated manipulation of single-molecule electronics.
A collaboration of researchers at HP and UCLA, led by James Heath, Fraser Stoddart, R. Stanley Williams, and Philip Kuekes, has developed molecular electronics based on rotaxanes and catenanes.
Work is also being done on the use of single-wall carbon nanotubes as field-effect transistors.
en.wikipedia.org /wiki/Molecular_electronics   (523 words)

  
 C&EN: NEWS OF THE WEEK - STICKING THINGS TO CARBON NANOTUBES
Fraser Stoddart and James R. Heath of the University of California, Los Angeles, has tackled this problem by producing bundles of SWNTs that appear to have a conjugated polymer helically wrapped around them [Angew.
That's good because Heath, Stoddart, and their coworkers plan to graft molecular switches onto the polymer and then assemble the wrapped nanotubes, which serve as nanowires, into crossbar lattices in which switches are located between individual crossed nanowires.
Stoddart is enthusiastic about the polymer approach, but he also thinks that Dai's pyrene-based "sticky labels" could benefit the UCLA project as an alternative way to attach molecular switches to nanotube wires.
pubs.acs.org /cen/topstory/7919/7919notw9.html   (677 words)

  
 Giving Molecular Computer Chemistry a Bit of Spin
This was announced in Hot Paper #3 and came from the groups of J. Fraser Stoddart and James Heath based in the Department of Chemistry and Biochemistry at the University of California at Los Angeles, and its appearance in the list is an indication of how important this area of chemistry has become.
The [2]catenane was anchored to the lower electrode by negatively charged phospholipids and the upper electrodes were deposited using electron-beam evaporation, first of a 0.5 micron layer of titanium and then a 10 micron layer of aluminium.
Fraser Stoddart has been active in molecular electronics for many years and began his research into this area when he was at the University of Sheffield, England, in the 1970s.
www.sciencewatch.com /march-april2002/sw_march-april2002_page5.htm   (858 words)

  
 Foresight Update 42 Page 2
Fraser Stoddart, reported it has succeeded in using a molecule to create an electronic switch that can be reconfigured — turned on and off, and on again — like a transistor.
Stoddart came to UCLA from England's University of Birmingham, where he was head of the school of chemistry and professor of organic chemistry.
Now we have taken another class of Fraser's molecules and demonstrated that they may be repeatedly switched on and off over reasonably long periods of time in a solid-state device under normal laboratory conditions.
www.foresight.org /Updates/Update42/Update42.2.html   (2555 words)

  
 Juniata College Campus News   (Site not responding. Last check: 2007-10-21)
James Fraser Stoddart, Saul Winstein Professor of Organic Chemistry at the University of California in Los Angeles, will present "Can a Molecular Computer Be Built?" at 8:15 p.m., Wednesday, Nov. 8 in Alumni Hall of the Brumbaugh Science Center on the Juniata College campus.
Stoddart was born in Edinburgh, Scotland in the early 1940’s.
Stoddart has received many awards and fellowships including the Hope Prize in Chemistry, the Carbohydrate Chemistry Award of The Chemical Society, and the International Izatt-Christensen Award in macrocyclic chemistry.
services.juniata.edu /news/index.php?SHOWARTICLE+240   (217 words)

  
 J. Fraser Stoddart and James Heath, Chemistry [UCLA Spotlight]   (Site not responding. Last check: 2007-10-21)
Fraser Stoddart and James Heath, Chemistry [UCLA Spotlight]
Spotlight: J. Fraser Stoddart and James Heath, Chemistry
The team, led by chemists James Heath, J. Fraser Stoddart and postdoctoral scholar Pat Collier, recently overcame a major hurdle to the creation of molecular computers, which promise to be cheaper, smaller and more efficient than today's silicon-based computers.
www.ucla.edu /spotlight/archive/html_2000_2001/fac_0800_heathstod.html   (345 words)

  
 Getting In On the Ground Floor   (Site not responding. Last check: 2007-10-21)
In the latter category are molecular switches developed by researchers in the labs of UCLA’s Fraser Stoddart and James Heath, the Gilloon Professor and Professor of Chemistry at Caltech.
The switches are based on structures called rotaxanes, invented in Stoddard’s lab, in which a ring-shaped molecule slides back and forth on a molecular shaft like a washer on a bolt; in lieu of a nut, the shaft’s ends bulge.
But the speed at which they flip depends on what they’re in, Stoddart says—what happens instantaneously in solution can take 10 minutes in the solid state, allowing the switches to be used as memory elements.
pr.caltech.edu /periodicals/eands/articles/LXVII4/groundfloor.html   (625 words)

  
 UCLA's James R. Heath: From Buckyballs to Moletronics
The latest idea, and one of the most intriguing, is known as molecular computers, or moletronics, in which single molecules serve as switches, "quantum wires" a few atoms thick serve as wiring, and the hardware is synthesized chemically from the bottom up.
In the summer of 1999, University of California, Los Angeles chemists James R. Heath and J. Fraser Stoddart and their collaborators published an architecture demonstration of such a computer in Science (see C.P. Collier, et al.
He is one of the rare scientists to participate in two potential revolutions before the age of 40.
www.sciencewatch.com /jan-feb2001/sw_jan-feb2001_page3.htm   (1120 words)

  
 HeathComps2004
James R. Heath, “Wires, Switches, and Wiring: A Route Toward a Chemically Assembled Electronic Nanocomputer,” Pure Appl.
Pease, J. Jeppesen, J. Fraser Stoddart, Yi Luo, C. Collier, and J. Heath, “Switching Devices Based on Interlocked Molecules,” Acc.
James R. Heath, Mike Phelps, Leroy Hood, "NanoSystems Biology," Molecular Imaging and Biology, Vol.
www.acad.carleton.edu /curricular/CHEM/faculty/tferrett/heath.html   (319 words)

  
 Marketplace for August 18, 2000
Stoddart: "Just imagine the desktop or the laptop that you have in front of you going into the size of a teardrop or a grain of salt."
Stoddart: "Of course, we still have to interact with it, so it's still going to have a size that human beings can relate to, but nonetheless, it will allow us to increase the power of computing with much less consumption of energy, and it would just be really cool."
James Ellenbogen of Mighter, a non-profit research outfit, says the global economy of the 21st century depends on continuing developments in what's called nano-technology."
marketplace.publicradio.org /shows/2000/08/18_mpp.html   (1524 words)

  
 UCLA team reports advance in molectronics - Nanodot   (Site not responding. Last check: 2007-10-21)
In an article published in the 18 August 2000 issue of Science, the U.C.L.A. team, led by James Heath and J.Fraser Stoddart, says it has succeeded in using a molecule to create an electronic switch that can be reconfigured -- turned on and off, and on again -- like a transistor.
Previous research had produced molecular switches that could change their state only once -- on to off, or vice versa -- or could operate only for a limited time or at very low temperatures.
James Heath was involved in this previous work, in collaboration with Stan Williams at Hewlett-Packard Labs.
nanodot.org /article.pl?sid=00/08/18/150212   (355 words)

  
 UCLA Patents
Peptide-based compounds containing four invariant cysteine residues which have been optionally oxidized to contain two intramolecular disulfide bonds, or modified forms where the cysteines are replaced are useful as preservatives and in preventing, treating, or ameliorating viral or microbial infection in animals and plants, and in inactivating endotoxin.
A single-electron solid state electronic device is characterized by organically functionalized nanometer size metal and metal alloy nanocrystal active elements.
The invention involves volatile and non-volatile solid state molecular switching devices which are electrically addressable and may be used in memory cells, routing circuits, inverters and field programmable devices which may or may not be designed to exhibit diode behavior.
www.research.ucla.edu /patents/patents01/patents.htm   (3475 words)

  
 Posters on the Hill
The Ames test results of the parent PA compared with the nitrosamine derivatives gives us an insight of the actual mode of action of the PA's.This research will help answer questions to the fundamental cause of mutagenicity and mode of action of these PAs.
The replication of the virus that causes the autoimmune deficiency disease (AIDS) is controlled by the HIV protease enzyme.
Researchers at the Eastman Kodak vacuum coating laboratory are interested in characterizing plasmas used in industrial processes, such as the manufacture of photographic film.
www.cur.org /poh/2002/poh2002abstract.asp   (14639 words)

  
 2004 Papers   (Site not responding. Last check: 2007-10-21)
J.O. Jeppesen, C. Collier, J.R. Heath, Y. Luo, K.A. Nielsen, J. Perkins, J. Fraser Stoddart, and E. Wong, “Artificial Molecular Devices Based on Tetrathiafulvalene”, J.
Steuerman, H.-R. Tseng, A. Peters, A. Flood, J. Jeppesen, K.A. Nielsen, J. Stoddart*, and J. Heath, “Molecular Mechanical Switch-Based Solid-State Electrochromic Devices,” Angew.
Amar H. Flood, Andrea J. Peters, Scott A. Vignon, David W. Steuerman, Hsian-Rong Tseng, Seogshin Kang, James R. Heath,* and J. Fraser Stoddart, “The Role of Physical Environment on Molecular Electromechanical Switching,” Chemistry A European Journal, 10, 6558 (2004).
www.its.caltech.edu /~heathgrp/papers/Paperfiles/2004/2004.htm   (279 words)

  
 ACS Organic Division, 2005 Fall Newsletter   (Site not responding. Last check: 2007-10-21)
James Fraser Stoddart and Ken Houk, Faculty Advisors
James Flack Norris Award in Physical Organic Chemistry sponsored by the Northeastern Section, ACS to Professor Martin Saunders, Yale University.
The results of each ballot shall be determined by those votes returned (envelope provided) to the Secretary-Treasurer's office: Dr. James H. Rigby, Department of Chemistry, Wayne State University, Detroit, MI 48202 no later than December 15, 2005.
www.organicdivision.org /newsletter_fall_2005.html   (1527 words)

  
 2000 Papers   (Site not responding. Last check: 2007-10-21)
Iris Weitz*, Jennifer Sample*, Ryan Ries, Eileen Spain, and James R. Heath, “Josephson Coupled Quantum Dot Artificial Solids,” J.Phys.Chem.
Eric W. Wong, Charles P. Collier, Martin Bĕhloradský, Françisco M. Raymo, J. Fraser Stoddart, and James R. Heath, “Fabrication and Transport Properties of Single-Molecule Thick Electrochemical Junctions,” J.
C.P. Collier, G. Mattersteig, Y. Li, E. Wong, K. Beverly, J. Sampaio, F. Raymo, J.F. Stoddart, and J. Heath, “A [2]-Catenane Based Solid-State Electronically Reconfigurable Switch,” Science, 289, 1172-75 (2000).
www.its.caltech.edu /~heathgrp/papers/Paperfiles/2000.htm   (176 words)

  
 UCLA Today: 000829 chemists
     The team, led by chemists James Heath, J. Fraser Stoddart and postdoctoral scholar Pat Collier, recently overcame a major hurdle to the creation of molecular computers, which promise to be cheaper, smaller and more efficient than today's silicon-based computers.
     "Now we have taken another class of Fraser's molecules and demonstrated that they may be repeatedly switched on and off over reasonably long periods of time in a solid-state device under normal laboratory conditions.
     "When I joined UCLA's faculty three years ago, if someone had asked me how far off molecular computing was, I would have said on a scale of a quarter-of-a-century," said Stoddart.
www.today.ucla.edu /2000/000829chemists.html   (337 words)

  
 SCI-BITES: Hot Paper in Chemistry
by Charles P. Collier, Gunter Mattersteig, Eric W. Wong, Yi Luo, Kristen Beverly, Jose Sampaio, Francisco M Raymo, J. Fraser Stoddart, James R. Heath, Science, 289(5482):1172-5, 18 August 2000.
Read the interview with James R. Heath from the Science Watch
SOURCE: Hot Papers Database (Available from the ISI Research Services Group in a CD-ROM version containing data on hundreds of highly cited papers published during the last two years.
www.in-cites.com /research/2002/january_21_2002-3.html   (342 words)

  
 2003 Foresight Conference on Molecular Nanotechnology
Poster session: Poster size for the poster session is 4 feet x 4 feet [122 cm x 122 cm]
James T. Spencer, Department of Chemistry, Syracuse University
Fraser Stoddart, University of California at Los Angeles
www.foresight.org /Conferences/MNT11   (1451 words)

  
 The Impact of Emerging Technologies: Molecular Computing - Technology Review   (Site not responding. Last check: 2007-10-21)
Synthesizing arrays of carbon nanotubes that can act as both wires and electronic devices
Stanley Williams, Philip Kuekes (HP); Fraser Stoddart, James Heath (UCLA)
Chemically assembling arrays of reconfigurable switches for memory and logic; goal is to build a molecular computer
www.technologyreview.com /articles/00/05/rotman0500.asp?p=4   (527 words)

  
 nanomix.com - News Room - Publications
ELECTRONIC DETECTION OF THE ENZYMATIC DEGRADATION OF STARCH by Dr. Alexander Star, Dr. George Grüner, Dr. J.
Fraser Stoddart, Vikram Joshi, Tzong-Ru Han and M. Virginia P. Altoe.
NONCOVALENT SIDE-WALL FUNCTIONALIZATION OF SINGLE-WALLED CARBON NANOTUBES by Alexander Star, Yi Liu, Kevin Grant, Ludek Ridvan, J. Fraser Stoddart, David W. Steuerman, Michael R. Diehl, Akram Boukai, and James R. Heath
www.nano.com /news/archives/publications.html   (488 words)

Try your search on: Qwika (all wikis)

Factbites
  About us   |   Why use us?   |   Reviews   |   Press   |   Contact us  
Copyright © 2005-2007 www.factbites.com Usage implies agreement with terms.