PIPages
Labs

Jeremy Gilbert

Clemson University, SC·Biomedical Engineering

Metals implanted in the body are usually meant to stay intact. But what happens when one slowly breaks down?

Fields

Biomedical Engineering

Materials Science

Engineering

Topics

biomaterials

degradable metals

biodegradable alloys

Grants
1 known grant, through Feb 2027

What they work on

  1. Assess the cytocompatibility of tin-silver (Sn-Ag) alloy, meaning whether it harms cells, by exposing cultured cells to a range of concentrations of its corrosion products.
  2. Characterize the interface between Sn-Ag and surrounding tissue in a 26-week rat implant model, measuring blood metal ion levels, whole-body effects and fibrous tissue ingrowth.
  3. Compare Sn-Ag alone and joined with another medical alloy against other medical alloys, to judge its potential as a degradable metal that anchors fibrous tissue to implants.

More about the research

The question arises from Essure, a coil device placed in the fallopian tubes for permanent birth control, which was withdrawn from the market after patient complaints rose sharply. Part of the device was held together with a tin-silver (Sn-Ag) solder. This metal alloy had never been implanted in the body before, and almost nothing had been published on how it behaves there.

Why it matters

Hundreds of thousands of women have received Essure implants containing a tin-silver solder whose behavior in the body was barely studied. This work could help explain the problems some of these women experienced. Because the corroding alloy binds strongly to fibrous tissue, it might also be developed into implants that need to attach firmly to tendons or ligaments, such as in limb reconstruction after osteosarcoma, a bone cancer.

Known grants

From NIH and NSF research grants. Labs often have other funding we can't see.

Tin-Silver Alloy as a Degradable Biomaterial: Biocompatibility Assessment

NIH · Mar 2025 – Feb 2027

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The school

Clemson University: 19 labs on PI Pages, $339M a year on research, 297 research doctorates a year.

More about Clemson University

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