Assay Design and Development

BioAssay Systems' scientists have over 50 years of extensive experience in assay development and have designed over 170 assay kits for research and drug discovery. Clients are welcome to contact us about developing custom assays to meet their specific needs.

An example of a custom assay developed by BioAssay Systems:

Biodegradable Polymers: BioAssay Systems has developed a proprietary ultra-sensitive assay to quantify polylactate polymers such as PLA and PLGA, in tissue samples. BioAssay Systems has successfully performed this assay to measure the degradation of polymer coatings on implanted devices for three different medical device companies. Results from these projects were critical for two CE Mark Approvals and the FDA approval of two medical device Investigational Device Exemption (IDE) applications. Assay details: html  pdf.


PLA figure1

Key Features:
  • Useful to assess remaining polymer coatings on implanted medical devices;
  • Accuracy and sensitivity of the assay are not affected by polymer MW, which will decrease over time after implantation;
  • No requirement to remove tissue from the sample. The polymer on the device and in the tissue are measured together;
  • Depending on the nature of the sample and polymer composition, sensitivity as low as 1 µg is possible.

Questions or quotation? Please submit the online form, or call tech support at 1-510-782-9988 x2.

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Customer Testimonials

Patrick H. Ruane, Ph.D., Director Chemistry XTENT, Inc.
"While developing biodegradable coatings for Drug Eluting Stents I worked with Bob to develop an accurate, precise and sensitive assay for determining the amount of polymer remaining in tissue. It was a pleasure to work with Bob and his team, they are very thorough, they understand the science very well and they always deliver on time and at the right price. I would highly recommend anyone using BioAssay Systems services in the future."

Anh-Dung Le, CEO DermaTec LLC
"The guys at BioAssay Systems know their science! I had to develop a bioassay for our company and Robert was very quick to respond to keep us up to date. They are knowledgeable and very resourceful. They directed us to one of the bulk suppliers that could give us a really good deal on our active ingredient. They keep very detailed records for our research needs. I would recommend working with BioAssay Systems on your assay development projects!"

Paul Abbyad, Ph.D., Assistant Professor, Santa Clara University
"I would like to show my appreciation to the Bioassay Systems service team. We are developing an assay to measure the change in lactate concentration of single cell samples using fluorescent microscopy. The BioAssay Systems team was quite helpful in assisting us to optimize their fluorescent L-Lactate assay kit for our unique experimental set-up. The BioAssay Systems team is always friendly and knowledgeable. We know that we can rely on them for fast and professional service."



BioAssay Systems is committed to producing innovative, high-quality and cost-effective products
and to providing expert technical service to our valued customers