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 Expert  107629

Expert in Electron Microscope, Light Microscopy, EBEAM Lithography and Nanofabrication, Scanning Electron

Available for your Consulting and Expert Witness Needs

Pennsylvania (PA)
Education Work History Career AccomplishmentsPublicationsConsulting Services Expert Witness

Summary of Expertise:

Listed with other top experts in: 

Expert has extensive experience in designing, implementing, troubleshooting, and interpreting experiments involving novel applications in all fields of biological microscopy (TEM, SEM). He also has expertise in confocal, fluorescence, DIC (Nomarski-Polarized), and other light microscopy techniques. His current work centers around using ebeam lithography to pattern ebeam resists on semiconductor and dielectric materials. He uses FESEM analysis to visualize the results.

He is an expert in cryofixation techniques. His experience includes; high-pressure freezing, plunge, metal mirror, and jet freezing technologies. He has used thin-metal film replication techniques on freeze-fractured surfaces for high resolution TEM studies of emulsions and gels. He has used SEM and cryo-SEM to examine fractured surfaces of food emulsions, paper products, aerogels, dispersions, and powders. Expert utilizes photographic and computerized image analysis and specializes in 3D imaging using confocal and electron microscopes. He is currently involved in cryo-preparation studies for surface compositional analyses of biological materials using TOF-SIMS (time-of-flight secondary ion mass spectrometry). His current research area involves detecting and imagining areas containing small molecules (<500 Dalton molecular weight) on biological and polymeric surfaces. He uses quick-freezing and cryo-techniques to prepare biological materials for direct examination. A liquid metal ion beam is used to direct a pulsed beam of gallium ions at an angle to the sample surface. This beam removes <1% of the top molecular layer from the sample surface. The molecular surface ions are directed into a time-of-flight secondary ion mass spectrometer for mass identification. Simultaneous ion images can be generated for selected molecular and fragment ion species. His research applications include biotechnology, pharmaceutical, food, and agricultural industries.

He is very familiar with tissue fixation, dehydration, and drying for SEM and TEM applications. He also is an expert at negative staining of viruses, bacteria, lipid suspensions, and extracted whole and fractionated cells. His research and use of advanced equipment has a practical effect. He currently has consulting arrangements with several industrial clients.

Expert's current main areas of work lie in electron-beam lithography and field-emission SEM. He conducts research with and for both academic and industrial clients. Expert uses Adobe Photoshop as his main image manipulation software to aid his clients in viewing their microfabricated materials. His microscopy and electron beam experience helps his clients who are interested in starting new nanofabrication research projects.

Expert uses electron beam lithography to pattern electron-beam-sensitive resists for producing nanowires on silicon or modified silicon surfaces. 20-50 nm wide nanowires have been fabricated using ebeam lithography techniques. Expert uses Leitz Ergolux light microscopes coupled with Polaroid digital microscope cameras to capture and manipulate images on Apple PowerPC computers. Adobe Photoshop is his software of choice for handling acquired images.




electron microscopy




electron microscope


electron microscopy sample preparation


electron resist


scanning electron microscopy


surface analysis


tissue fixation


electron-beam lithography


semiconductor mask


semiconductor material processing


semiconductor wafer processing








optical microscopy


3D imaging


confocal microscopy


electron beam



Show Secondary and Basic Areas of Expertise
Expert may consult nationally and internationally, and is also local to the following cities: New York, New York;  Yonkers, New York;  Newark, New Jersey;  Jersey City, New Jersey;  Paterson, New Jersey;  Elizabeth, New Jersey;  Trenton, New Jersey;  Philadelphia, Pennsylvania;  Allentown, Pennsylvania;  and Baltimore, Maryland.

Year   Degree   Subject   Institution  
1983   Ph.D.   Nutritional Sciences   University of Illinois  
1975   B.S.   Microbiology/Chemistry   University of Illinois  

Work History:
Years   Employer   Department   Title   Responsibilities

1998 to


(Undisclosed University)


Department of Engineering Science and Mechanics


Research Associate/Nanofabrication Engineer


Expert's responsibilities include training, mentoring, and supervising PSU graduate students and post-doctoral researchers from the Departments of Electrical Engineering, Physics, Chemistry, and Astronomy. He works with electron beam lithography (Leica EBPG-HR5), and scanning electron microscopy (LEO1530-FESEM) nanofabrication project design, implementation, and evaluation for outside academic and industrial clients. He is involved with light microscopy, e-gun, and thermal metal evaporative coating. He does e-beam photomask production, processing, and resist characterization, as well as nano- and micro-fabrication applications development for semi-conductor, photonic and biological materials.

1995 to 1998


Pennsylvania State University, University Park


Department of Chemistry


Research Associate


Expert's responsibilities included exploratory research on biological and material science samples for elemental and molecular identification and imaging using static time-of-flight secondary ion mass spectrometry (TOF-SIMS), and light- and electron microscopy. Applications included polymers, glasses, doped silicon, plant and fungi physiology and chemistry, mass spectrometry, and chemical imaging. He worked on the development and application of specimen cryopreparative techniques for biological surface analysis using TOF-SIMS. He also performed concomitant cryo LVSEM (low voltage scanning electron microscopy) and FESEM (field emission SEM) analysis. He was also involved with equipment and cryo-accessory design.

1993 to 1995


Medical College of Georgia, Augusta


School of Medicine, Cell Biology and Anatomy


Director of Electron Microscopy


Expert was responsible for overseeing the service and research activities involving electron microscopy applications. He performed management of lab operations and technical service staff, user training, scheduling, and budget administration. The fields of application included cell, neuro-, and molecular biology, immunology, microbiology, pathology, virology, and food science disciplines. He performed cryofixation and freeze-fracture surface replication. He was a consultant on external projects in food ingredient structure and related fields.

1989 to 1993


University of Massachusetts, Amherst


Advanced Microscopy Facility


Senior Microscopist


Expert performed service and research activities involving electron microscopy (EM) applications, user training, and budget administration. He also managed the technical service staff. He conducted user training, advising, research, and technique development in TEM and SEM; fluorescent, confocal, and DIC (Nomarski) microscopy; and high-pressure cryopreparation (Balzers HPM), freeze substitution, and freeze-fracture/etching. He was an independent consultant on external projects involving EM studies in materials and food science fields.

1984 to 1989


University of Illinois, Urbana


Veterinary Medicine Electron Microscopy Facility




Expert was responsible for overseeing the service and research for electron microscopy applications. He performed SEM and TEM research project design and implementation, and maintenance and acquisition of electron microscopes and support equipment. He also conducted user training and technical service staff management. He performed immunology and immunochemistry research on virus-cell interactions using colloidal gold labeling of viral and cytoskeletal antigens. He also did independent consulting involving EM studies in food science and related fields.

2007 to


(Undisclosed University)


Materials Science and Engineering


Microscopy Manager-Central Research Facility


Expert is responsible for the daily operations of a centralized, multi-user Materials Characterization Facility in the College of Engineering. He is mainly working with Scanning Electron Microscopes in both high vacuum and variable pressure modes.

Career Accomplishments:

Expert is an active member of the Microscopy Society of America, the Appalachian Regional Microscopy Society, the Microbeam Analysis Society, the Philadelphia Society for Microscopy, and the American Chemical Society.

Publications and Patents Summary

Expert has 28 publications, including abstracts presented at scientific meetings.

Selected Publications and Publishers  
 - Microscopy Society of America Proceedings  

Consulting Services:
Selected Consulting Examples:
  • Expert has access to the PSU Nanofabrication Cleanroom facility for conducting all phases of nanofabrication research. Equipment includes: a Leica EBPG-HR5 Ebeam lithography system, a LEO1530 FESEM, light microscopes, metal deposition systems for both ebeam and thermal evaporation, reactive ion etch tools, oxide furnaces, and vapor deposition and thin film characterization tools. Clients may either come in as registered users (after proper training) and perform their own research or expert can act as a client's agent and conduct research as a remote project.
Click the green button above to contact Expert for a free initial screening call regarding your expert consulting needs.  Expert is available for consulting to corporate, legal and government clients.  Remember, your initial screening call to speak with Expert is free.

Expert Witness:
Click the green button above to contact Expert for a free initial screening call regarding expert testimony, litigation consulting and support, forensic services, or any related expert witness services.  A few litigation needs include product liability, personal injury, economic loss, intellectual property (patent, trademark, trade secret, copyright), and insurance matters.  Remember, your initial screening call to speak with Expert is free.

Additional Skills and Services:

Expert has been an invited speaker at electron microscopy meetings and has assisted in teaching microscopy short courses and workshops. He frequently attends meetings and workshops to keep abreast of current applications and technologies.

Supplier and Vendor Location and Selection

Expert has experience locating vendors of microscopy-related products and supplies; SEM, TEM, and fluorescence microscopy specimen preparation equipment; and cryo-preparation equipment for electron microscopy. He has access to print materials, personal contacts and the Internet to aid him in vendor selection.


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