Dear sirs,
I would like to make some tests, implanting a small datalogger under the skin of an animal.
Problem: for this tests, the datalogger needs a hard, biocompatible coating.
Could you recommend a easily available resin that is resistant, and biocompatible, so it could be used under the skin?
Thanks
Cid Teixeira Neto: In general, I would suggest a urethane, silicone/urethane or silicone implant grade material. A lot depends on the details, for instance: how long will it be implanted? Is this subcutaneous or sub-dermal? Will it be in an anatomical location with a lot or little tissue motion? etc. etc.
A couple of potential material suppliers:
DSM - https://www.dsm.com/biomedical/en_US/home.html
Biomerics - https://biomerics.com/materials/medical-polymers-quadra/
Another option for "quick & dirty" - purchase implant grade silicone sheets (plain or reinforced) and glue them together to create a cover for your datalogger:
Precise Medical: https://www.precisemedical.com.au/collections/medical-grade-implantable-silicone-sheeting
Bioplexus: https://www.bioplexus.com/
Dear Cid Teixeira Neto,
The easiest way is to use "Tissue Adhesive glue" such as fibrin glue. They are available, just be careful about degradation time.
Best wishes.
Glass is the safest option for biocompatibility, but it is difficult to manufacture in custom shape. We have used a two-layer coating of medical epoxy and PMMA in our work. You can have a look at the following article:
Article An Injectable System for Subcutaneous Photoplethysmography, ...
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