- Richard D. Leapman
Richard D. Leapman, Ph. D (born on Dec. 6th, 1950) is an English
physicist, and current scientific director of National Institute of Biomedical Imaging and Bioengineering(NIBIB), since October 2006 [http://www.nih.gov/news/pr/oct2006/nibib-17.htm] NIH news] and a chief of the [http://www.nibib.nih.gov/Research/Intramural/LBPS/SSF#staff laboratory] of bioengineering and physical science. Dr. Leapman's research interests are in the development and application of quantitative [electron microscopy] and the application of novel nanoscaleimaging methods to solve problems in structural and cellular biology.
Dr. Leapman has been particularly active in developing the techniques of
electron energy loss spectroscopy(EELS) and scanning transmission electron microscopy(STEM) to provide an unprecedented high spatial resolution for nanoanalysis of biological structures. Dr. Leapman has devised new methods for quantifying both elemental and chemical information obtained from inelastic electron scattering, a research area in which he has over one hundred publications [http://www.nibib.nih.gov/Research/Intramural/lbps/publicationspage2#ssfr] Selected publications ] . Recently, Dr. Leapman has extended the techniques of energy filtered transmission electron microscopy(EFTEM) and STEM and combined them with a known technique of tomographyto obtain three-dimensional structural and compositional information of cellular components.
Dr. Leapman obtained his Ph.D. in physics from the
University of Cambridge, England. He serves on the editorial boards of [http://www.blackwellpublishing.com/journal.asp?ref=0022-2720&site=1 "the journal of microscopy"] and "nanotechnology" and on peer review panels.
Chen KG, Valencia JC, Lai B, Zhang G, Paterson JK, Rouzaud F, Berens W, Wincovitch SM, Garfield SH, Leapman RD, Hearing VJ, Gottesman MM. Melanosomal sequestration of cytotoxic drugs contributes to the intractability of malignant melanomas. Proc Natl Acad Sci U S A. 2006 Jun 27;103(26):9903-7.
Petkova AT, Leapman RD, Guo Z, Yau WM, Mattson MP, Tycko R. Self-propagating, molecular-level polymorphism in Alzheimer's beta-amyloid fibrils. Science. 2005 Jan 14;307(5707):262-5.
Leapman RD, Kocsis E, Zhang G, Talbot TL, Laquerriere P. Three-dimensional distributions of elements in biological samples by energy-filtered electron tomography. Ultramicroscopy. 2004 Jul;100(1-2):115-25
Leapman RD, Gallant PE, Reese TS, Andrews SB. Phosphorylation and subunit organization of axonal neurofilaments determined by scanning transmission electron microscopy. Proc Natl Acad Sci U S A. 1997 Jul 22;94(15):7820-4.
National Institute of Biomedical Imaging and Bioengineering
National Institutes of Health
* [http://www.nih.gov NIH homepage]
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* [http://www.nih.gov/news/radio/nihpodcast.htm NIH Podcast]
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