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 Expert  107704

Expert in Free and Antioxidant Radical Chemistry and Biology

Available for your Consulting and Expert Witness Needs

Iowa (IA)
Education Work History Career AccomplishmentsPublicationsConsulting Services Expert Witness

Summary of Expertise:

Listed with other top experts in: 

Expert [BET-ner] has over 20 years of experience with nearly all aspects of CW-EPR. He was a pioneer in the use of EPR spin trapping to study free radical chemistry, especially its application to free radical biochemistry and free radical related problems of human health. He has either set up or assisted with the set up of four different EPR laboratories. He is very knowledgeable of EPR.

Expert has had considerable experience with biological oxidants and antioxidants. He has investigated the chemistry and biochemistry of both small molecule antioxidants, such as ascorbate and tocopherol, and antioxidant enzymes. His present research deals with the fundamental antioxidant chemistry of vitamins C and E (ascorbate and tocopherol). He is also working with thiols such as glutathione. He has experience with antioxidant enzymes such as catalase, glutathione peroxidase, and superoxide dismutase.

Expert has considerable experience in the study of various oxygen-centered free radicals such as superoxide, hydroxyl radical, and peroxyl free radicals. His research has dealt with the fundamental chemistry of these radical species. It has also dealt with how they interact to cause biological oxidations such as lipid peroxidation.

Expert has been a pioneer in the study of free radical chemistry of biologically related free radicals. He was at the forefront of the study of iron and chelating agents in this chemistry. He continues to be active in this area of research.

Expert has expertise in the photosensitized production of singlet oxygen and free radicals. These studies have involved promazine and chlorpromazine and riboflavin. They also include work on hematoporphyrin derivative, a photosensitizer being tested for the treatment of cancer. Expert has used EPR spin trapping as well as laser flash photolysis in these studies.

Expert has over 15 years of experience in research on cellular lipid peroxidation processes. He has developed new approaches to detect the free radicals associated with cellular lipid peroxidation. He has also investigated how ascorbate, tocopherol and nitric oxide interact to serve as cellular antioxidants.

Expert has developed new ways to detect and quantitate nitric oxide. A major current research focus is on the mechanisms by which nitric oxide serves as a cellular and tissue antioxidant.


electron paramagnetic resonance spectroscopy


electron paramagnetic resonance


biological antioxidant


ascorbic acid




superoxide dismutase


oxygen radical biochemistry


free radical chemistry


free radical biochemistry


free radical


chelating agent




lipid oxidation


nitric oxide

Show Secondary and Basic Areas of Expertise
Expert may consult nationally and internationally, and is also local to the following cities: Cedar Rapids, Iowa;  Davenport, Iowa;  Waterloo, Iowa;  Iowa City, Iowa;  and Dubuque, Iowa.

Year   Degree   Subject   Institution  
1976   Ph.D.   Chemistry   (Undisclosed University)  
1969   M.S.   Chemistry   (Undisclosed University)  
1967   B.A.   Chemistry   University of Northern Iowa  

Work History:
Years   Employer   Department   Title   Responsibilities

1988 to


(Undisclosed University)


College of Medicine/ESR Facility


Director and Professor


Expert is a Professor in the Free Radical and Radiation Biology Graduate Program. He directs the Electron Spin Resonance Core Facility, and conducts research on the role of free radicals and antioxidants in health and disease.

1988 to 1988


National Institutes of Health/NIEHS


Laboratory Molecular Biophysics


Senior Expert


He performed research on the fundamental chemical biology of free radicals and antixoidants.

1985 to 1987


GSF Research Institute, Germany


Institute for Radiation Biology


Fulbright Fellow/Guest Scientist


Expert was a Fulbright Scholar and visiting scientist, conducting research on the kinetics of free radical reactions.

1984 to 1985




Laboratory Molecular Biophysics


Senior Expert


He conducted research on the fundamental chemical biology of free radicals and antixoidants.

1978 to 1984


Wabash College




Assistant Professor of Chemistry


He taught courses in undergraduate chemistry.

Career Accomplishments:

Expert is a member of the Society for Free Radical Biology and Medicine. He is immediate Past President of that organization. He is also a member of the International Society for Free Radical Research, the American Society for Photobiology, the Radiation Research Society, and the American Chemical Society.

Professional Appointments

Expert serves on the editorial board of Free Radical in Biology Medicine as well as Archives Biochemistry and Biophysics.


Expert was a Fulbright Scholar in Germany at the GSF Research Institute from 1985-1987. He received the Master Teacher Award from the Oxygen Society, 1999-present. Three of his research papers were honored as "Citation Classics" by the Institute for Scientific Information. He is Immediate Past President of the Society for Free Radical Biology and Medicine. He also was honored as a large volume blood donor.

Publications and Patents Summary

Expert has published over 100 technical papers in his field.

Selected Publications and Publishers  
 - Free Radical Biology & Medicine  
 - Biological Chemistry  
 - As an Invited Review in Archives of Biochemistry and Biophysics  

Government Experience:
Years   Agency   Role   Description
1984 to 1988   NIH/NIEHS   Senior Visiting Scientist   Expert conducted research on the role of free radicals and antioxidants in health.

Consulting Services:
Recent Client Requests:
  • Expert in validation of testing device for free radicals.
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.

International Experience:
Years   Country / Region   Summary
1985 to 1987   Germany   Expert conducted research as a Fulbright Scholar at the GSF, a German Federal Research Institute.

Additional Skills and Services:
Supplier and Vendor Location and Selection

Expert has experience locating vendors of: data acquisition with EPR spectroscopy services; maintenance services for EPR spectroscopy.

He has personal contacts in this field to aid in vendor location.


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