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 Expert  721986

Expert in Immunoreagents, Clinical Reagents, Surfactant Science

Available for your Consulting and Expert Witness Needs

New York (NY)
Education Work History Career AccomplishmentsPublicationsConsulting Services Expert Witness

Summary of Expertise: Listed with other top experts in: 
Expert developed, created and adapted immunoassays for flagship auto analyzers. Using a variety of surfactants, he engineered reagents, controls and calibrators for immunoassays of thyroids (T3, FT3, T4 and FT4), reproductive hormones (FSH, LH, hCG and prolactin), anemia (B12 and folate), steroids (progesterone, estradiol and testosterone) and therapeutic drugs (vancomycin, tobramycin, dilantin and digoxin). He developed biological microemulsions by solubilizing high concentrations of lipids (cholesterol and tryglyceride). These formulations were optically-clear solutions, which were used as standards and controls in auto analyzers. He used surfactants to enhance the activity of antibodies in immunoassays. Under Expert's direction, new surfactants were introduced to enhance the proteolytic enzyme activity for cholesterol/triglyceride reagents. He prepared a liposome formulation using a new surfactant to maintain the integrity of liposome in solutions. He used surfactant-based formulations to clear lipemic serum samples. Expert engineered a dry blend formulation for clinical reagents using solid surfactants. He has prepared cleansing solutions for wetting and cleaning surfaces such as glass, Teflon, Tygon, nylon and polymers. An array of surfactants was used to solubilize dyes, drugs and peptides. Expert prepared ancillary reagents using surfactants to maintain the integrity of blood components used in hematology, clinical and immuno-analyzers. In association with others, Expert developed phase diagrams, theories of stability of emulsions, microemulsions, foams and electrostatic influences on dyes in surfactant solutions. He developed and modified immuno- and clinical reagents. He has used various techniques, such as contact angles, surface/interfacial tension, viscosity, electrical potential measurement, polarography, IR, HPLC, GC, and gel chromatography to analyze the surfactant solutions. Expert is an expert in surfactant applications in clinical, immunological and hematology reagents. He was involved with the development of reagent formulations for use on automated analyzers. A snapshot of some of the important contributions in the use of surfactants in clinical, immuno- and hematology reagents that Expert has made during his 25 years in the field are described below. The aforementioned projects have benefited by Expert's involvement due to his broad background of surface active agents in the clinical testing sciences. He possesses exceptional knowledge and skills in the application of surfactants and reagent formulations designed to improve reagent performance, interfacial interactions and system hydraulic performance. By virtue of extending the science of surfactants to practical applications in biological formulations and interfaces, Expert became an individual with unique knowledge and experience. Over the course of his professional career, he has gained significant experience in the troubleshooting of critical problems in clinical science.

In addition to Expert's technical knowledge in the application of surfactants in clinical reagents, he has extensive experience in control system development. He has developed control systems for clinical chemistry methods, as well as product development requirements (PDRS). He has analyzed R&D method performance data to develop specifications, test methods and shelf life claims. He is familiar with product development under GMP and the PACE® (Product And Cycle-Time Excellence) guidelines.








enzyme immunoassay


enzyme-linked immunosorbent assay


clinical laboratory


clinical laboratory equipment




antigen-antibody interaction


non-ionic surfactant






colloid and interface chemistry


contact angle measurement


interfacial tension measurement




surfactant chemistry


clinical chemistry


blood chemistry


surface chemistry


polymer surface chemistry


block copolymer surfactant application




chemical research and development

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;  Bridgeport, Connecticut;  New Haven, Connecticut;  Hartford, Connecticut;  and Philadelphia, Pennsylvania.

Often requested
with this expert:

Surfactant Chemistry
Colloids & Polymers
Lubricants, Metalworking Fluid Formulations, Fluid...
Pharmaceutical and Biopharmaceutical Product Development,...

Year   Degree   Subject   Institution   Honors
1970   Ph.D.   Chemical Engineering (Biosurfactant Chemistry)   Indian Institute of Science [Bangalore, India]   Highest Honors
1967   Ph.D.   Physical Chemistry   University of Roorkee [Roorkee, India]   Highest Honors
1963   M.S.   Surface and Colloid Chemistry   Aligarh University [Aligarh, India]   Highest Honors

Work History:
Years   Employer   Department   Title   Responsibilities

2001 to





Independent Consultant


1990 to 2001


Bayer Corporation


Diagnostics Division


Senior Staff Scientist


While with Bayer, Expert was responsible for modifying immuno reagents for Bayer autoanalyzers.

1982 to 1990




Health Care Group


Project Scientist


At Revlon, he was responsible for the development of liposome- and latex-based immuno reagents for HIV and TDM.

1976 to 1982


Technicon Instruments Corporation


Research and Development


Senior Scientist


Expert was responsible for modifying clinical chemistry reagents for SMA, SMAC and Chem-1.

1974 to 1976


Virginia Polytechnic Institute


Department of Chemical Engineering


Research Associate


Expert worked on tautomeric catalysis and hollow fiber enzyme reactors under an NIH grant.

1973 to 1974


University of Wisconsin at Madison


School of Pharmacy




He studied the electrostatic effect on dyes in surfactant solutions.

1970 to 1973


Swedish Institute for Surface Chemistry


Research and Development


Group Leader


With the Swedish Institute, Expert developed theories for emulsions, microemulsions and foams using surfactant phase diagrams.

Career Accomplishments:

Expert belongs to the American Chemical Society (ACS), American Association of Clinical Chemistry (AACC), Westchester Chemical Society, American Oil Chemist Society [North Eastern Section], and the Indian Association of Clinical Chemists.

Professional Appointments

He served as Chairman and Board of Directors of the American Chemical Society (Westchester), the American Oil Chemist Society and the Indian Association of Clinical Chemists. Dr. Ahman has also served as Chairman of the "New Horizons In Surfactant Chemistry Symposium," American Oil Chemist Society, North East Division.


He received the Bayer 1993 Science Achievement Award, CSIR scholarships of India, a Swedish Academy of Sciences Scholarship, a NIH Scholarship and Grant for Research, and Technicon Patent Awards.

Publications and Patents Summary

He has eight patents and 27 publications in different fields of surface and colloid chemistry.

Selected Publications and Publishers  
 - U.S. Patent and Trademark Office  
 - Journal of the American Chemical Society  
 - Journal of Physical Chemistry  
 - Liquid Crystals & Ordered Fluids Part III  
 - Journal of the American Oil Chemists' Society  

Consulting Services:
Selected Consulting Examples:
  • Expert has devoted his time to working on free T4 immunoassay development using a nonionic surfactant, which resulted in improved precision of an assay for immuno auto-analyzers.
  • He has also researched latex micro-particles immunoassays for TDM- attached antibodies to detect the presence of therapeutic drugs in serum samples.
  • Expert has contributed to work on liposome-based assays suitable for flow systems. He introduced new surfactants to maintain the integrity of liposome in flow systems.
  • He made a significant contribution to the clearing agent for lipemic serum samples --Expert developed a reagent to improve optical measurement viability.
  • In the area of cholesterol/triglyceride reagents (surfactant-enhanced enzyme), he improved reagents to reduce cost.
Recent Client Requests:
  • Surfactant expert for consulting on Production of and removal of foam.
  • Hcg expert for consulting on hcg IVD - essential manufacturing and product data required to audit manufacturer.
  • Expert for consulting on Evaluation of contract medical device manufacturer.
  • Expert in Ceramic Powder Foaming.
  • Expert for consulting on experience formulator of defoamers/ anti-foam agents.
  • Expert chemist SURFACTANT for consulting on a Leak Detector.
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:
Recent Litigation Client Requests:
  • Expert in pharmaceuticals.
  • Expert for consulting on Inquiry.
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.

Language Skills:
Foreign Language   Description
Hindi   Expert is proficient in the Hindi language.
Urdu   He is proficient in Urdu.
German   He is knowledgable of technical German.


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