Academic Background
B.S., Worcester Polytechnic Institute, 1971
M.S. University of New Hampshire, 1974
Ph.D. University of New Hampshire, 1975
Postdoctoral Research Associate, Worcester Polytechnic Institute, 1976
Postdoctoral Research Associate, Pennsylvania State University, 1976-1978
Research Associate, Oak Ridge National Laboratory, 1978-1979
Research Associate, Columbia University, 1979-1982
Senior Research Associate, Brookhaven National Laboratory, 1982-1985
Assistant Biophysicist, Brookhaven National Laboratory, 1985-1987
Associate Biophysicist, Brookhaven National Laboratory, 1987-1988
Assistant Research Scientist, University of Michigan, 1988-1990
Senior Research Associate, University of Colorado, 1990-1995
Image Analysis Specialist, Micro Video Instruments, 1995-1999
Director of the Digital Imaging Core Facility
High Resolution Multi-mode Digital Microscopy and Image Analysis
My current research interest is to collaborate with other
researchers at the Univ. of Mass. Medical School to determine structure function
relationships in biological systems by acquiring high resolution light microscope images of
cellular organelles which are specifically labeled with fluorescent probes. The facilities
of the digital imaging core facility allows the researcher to acquire a 3-D thru - focus
image series at a single or at multiple wavelengths or to acquire time lapse images or high
resolution 2-D images. Digital deconvolution algorithms can be used to remove out-of-focus
haze from the 3-D image sets and 3-D volume rendering of the resulting images allows spatial
relationships between cellular organelles and probes to be determined. Image averaging and
other image analysis techniques can also be applied, when appropriate, to extract the maximum
amount of information from the data.
The Digital Imaging Core Facility was established by the University of Massachusetts
Medical School Research Council in 1997 and is hosted by the Department of Pharmacology and
Molecular Toxicology in room S7-105. The facility is available to all on campus researchers
for a modest fee. The facility consists of an Olympus IX-70 inverted light microscope, a
Roper Scientific high resolution, thinned, back-illuminated cooled CCD digital camera, a
Sutter filter wheel and shutter and a PZT piezoelectric focus drive . The shutter, filter
wheel, focus drive and digital camera are controlled by a PC running the Metamorph image
acquisition and analysis software package. A separate Metamorph workstation is available for
off-line image analysis. There are also 3 SGI workstations available for digital
deconvolution to remove out of focus haze and for 3-D volume rendering. Digital
deconvolution is performed using the exhaustive photon reassignment (EPR) algorithm developed
by the Biomedical Imaging Group under the direction of the late Dr. Frederick Fay. A
Condonics Dye sublimation printer and an Opal film recorder (slide maker) are also available
to users of the facility.
