Silicone

also: Polysiloxanes

Chemistry: Polymers that include any inert, synthetic compound made up of repeating units of siloxane, which is a chain of alternating silicon atoms and oxygen atoms, frequently combined with carbon and/or hydrogen.

In implants it is used for glaucoma drain, cochlear prosthesis, ear tubes, breast implants, hernia mesh and intrauterine devices (IUD).

Silicone is used in microfluidics, seals, gaskets, shrouds, and other applications requiring high biocompatibility.
The gel form is used in breast implants, testicle implants, pectoral implants and some other medical uses.

Polydimethylsiloxane (PDMS) has been used as the hydrophobic block of amphiphilic synthetic block copolymers used to form the vesicle membrane of polymersomes.