ORCID Profile
0000-0003-2880-1152
Current Organisation
University of Bristol
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Publisher: IOP Publishing
Date: 12-1995
Publisher: Springer Science and Business Media LLC
Date: 11-2015
DOI: 10.1038/527009A
Publisher: SAGE Publications, Inc.
Date: 2015
Publisher: Wiley
Date: 10-03-2016
Abstract: A new approach to synthesize self-doped colloidal Cu3-x P NCs with controlled size and localized surface plasmon resonance absorption is reported. These Cu3-x P NCs show ultrafast exciton dynamics and huge optical nonlinearities due to plasmonic resonances, which afford the first demonstration of plasmonic Cu3-x P NCs as simple, effective, and solution-processed nonlinear absorbers for high-energy Q-switched fiber laser.
Publisher: Springer Science and Business Media LLC
Date: 02-1979
DOI: 10.1038/277548A0
Publisher: Spektrum Akademischer Verlag
Date: 2010
Publisher: Elsevier BV
Date: 07-2000
Publisher: Royal Society of Chemistry (RSC)
Date: 1992
DOI: 10.1039/FD9929300281
Publisher: Elsevier BV
Date: 05-1982
Publisher: Springer Science and Business Media LLC
Date: 02-2013
DOI: 10.1038/494430B
Publisher: Elsevier BV
Date: 1991
Publisher: Royal Society of Chemistry (RSC)
Date: 1993
DOI: 10.1039/FT9938900817
Publisher: IOP Publishing
Date: 2011
Publisher: AIP Publishing
Date: 08-02-2002
DOI: 10.1063/1.1431588
Abstract: Explicit atom molecular dynamics simulations were used in conjunction with the thermodynamic integration method to calculate hydration free energies for short n-alkane molecules, up to C5H12. The OPLS all-atom parameter set [Kaminski et al., J. Phys. Chem. 98, 13077 (1994)] was used to represent the n-alkanes, together with the TIP3P water model [Jorgensen et al., J. Chem. Phys. 79, 926 (1983)]. The approach of Beutler et al. [Chem. Phys. Lett. 222, 529 (1994)] was used to avoid singularities in nonbonded interaction potentials that can otherwise be problematical with this technique. Electrostatic interactions were treated using a cutoff radius of 0.9 nm, and a functional form that was shifted and scaled smoothly to zero. The values obtained for the solvation free energies were of similar accuracy to those from previously published simulations, but were systematically about 2 kJ mol−1 higher than experimental values. However, the calculated free energies of transformation for the reaction CnH2n+1(aq)→Cn+1H2n+4(aq), show a considerably improved agreement over previous values, and reproduce well the experimental trend versus n. The merits of the thermodynamic integration technique are discussed in relation to the popular thermodynamic perturbation method.
Publisher: Elsevier BV
Date: 03-1989
Publisher: Springer Science and Business Media LLC
Date: 02-2015
DOI: 10.1038/518035A
Publisher: IOP Publishing
Date: 12-2013
Publisher: Elsevier BV
Date: 07-1982
Publisher: Elsevier
Date: 1981
Publisher: Springer Science and Business Media LLC
Date: 22-04-2015
DOI: 10.1038/520436A
Publisher: Royal Society of Chemistry (RSC)
Date: 1986
DOI: 10.1039/DC9868100063
Publisher: University of Illinois Press
Date: 10-2011
Publisher: Elsevier BV
Date: 11-1979
Publisher: Elsevier BV
Date: 08-1975
DOI: 10.1016/0009-3084(75)90062-6
Abstract: Benzene solutions of purified egg lecithin, with small amounts of water added, have been examined by 60 MGz and 100 MHz NMR spectroscopy, infrared spectrophotometry and phase contrast microscopy. The transverse relaxation times of the water, N-methyl and O--H protons are dependent on water concentration. This dependence changes sharply for the water proton at a level of one water molecule per lecithin monohydrate molecule. These results do not fully agree with those reported by other workers. Four mathematical models are examined which could account for the behaviour of the water protons. Models which assume a constant transverse relaxation time for water protons above a level of one water molecule per lecithin molecule cannot predict the behaviour observed. It is sufficient to assume that water protons above this concentration have a single relaxation time which is a linear function of water concentration. The added water associates primarily with the phosphate in the lecithin head group. Above nine water molecules per lecithin monohydrate molecule free water is present in the system.
Publisher: Royal Society of Chemistry (RSC)
Date: 1977
DOI: 10.1039/CS9770600025
Publisher: Royal Society of Chemistry (RSC)
Date: 1986
DOI: 10.1039/DC9868100339
Publisher: Elsevier BV
Date: 10-1998
Publisher: Elsevier BV
Date: 12-1980
Publisher: Elsevier BV
Date: 06-1996
Publisher: Springer New York
Date: 2013
Publisher: Elsevier BV
Date: 10-1987
Publisher: Elsevier BV
Date: 04-1992
Publisher: IOP Publishing
Date: 08-1971
Publisher: Royal Society of Chemistry (RSC)
Date: 1986
DOI: 10.1039/DC9868100257
Publisher: American Astronomical Society
Date: 17-05-2018
Publisher: Royal Society of Chemistry (RSC)
Date: 1986
DOI: 10.1039/DC9868100137
Publisher: Springer Science and Business Media LLC
Date: 11-2014
DOI: 10.1038/515492F
Publisher: Wiley
Date: 20-01-2015
Publisher: Wiley
Date: 03-2018
Abstract: A semiconductor p-n junction typically has a doping-induced carrier depletion region, where the doping level positively correlates with the built-in potential and negatively correlates with the depletion layer width. In conventional bulk and atomically thin junctions, this correlation challenges the synergy of the internal field and its spatial extent in carrier generation/transport. Organic-inorganic hybrid perovskites, a class of crystalline ionic semiconductors, are promising alternatives because of their direct badgap, long diffusion length, and large dielectric constant. Here, strong depletion in a lateral p-n junction induced by local electronic doping at the surface of in idual CH
Publisher: Springer Science and Business Media LLC
Date: 2012
DOI: 10.1038/481029D
Publisher: Elsevier BV
Date: 1993
DOI: 10.1016/0267-6605(93)90048-C
Abstract: As there are only a finite number of materials suitable for orthopaedic reconstruction, considerable effort has been devoted recently to investigating ways of altering the surface chemistry of prosthetic materials without altering their bulk properties. Ion beam implantation is one such technique which is appropriate for orthopaedic reconstructive materials. This paper investigates the early effect of ion beam modification on cellular attachment of bone derived cells using a prototype device which measures the strength of attachment of in idual cells to a silicon substratum. The results point to several conclusions. (1) There is no evidence that ion beam implantation with nitrogen, phosphorus, manganese or magnesium produces increased adhesion of human bone derived cells. (2) Surface etching with hydrofluoric acid, electron bombardment and thermal oxidation increases the strength of attachment between cells and substrata. (3) There is a correlation between wettability and rate of cellular attachment to oxygen implanted substrata during the first 2 h after cellular seeding. However, the increase in cellular attachment cannot be entirely explained by the change in critical surface tension or via increased fibronectin attachment to the substrata.
Publisher: Springer Science and Business Media LLC
Date: 04-1986
DOI: 10.1038/320526A0
Publisher: Elsevier BV
Date: 12-1981
Publisher: Elsevier BV
Date: 04-1981
Publisher: Royal Society of Chemistry (RSC)
Date: 1986
DOI: 10.1039/DC9868100249
Publisher: Improbable Research Inc.
Date: 11-2001
Publisher: Elsevier BV
Date: 05-1979
Publisher: Royal Society of Chemistry (RSC)
Date: 1993
DOI: 10.1039/FT9938902567
Publisher: Springer Science and Business Media LLC
Date: 04-1981
DOI: 10.1038/290575A0
Location: United Kingdom of Great Britain and Northern Ireland
No related grants have been discovered for Len Fisher.