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Polymeric shells for medical imaging prepared from synthetic polymers, and methods for the use thereof

  • US 5,512,268 A
  • Filed: 06/06/1995
  • Issued: 04/30/1996
  • Est. Priority Date: 03/26/1993
  • Status: Expired due to Term
First Claim
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1. A composition for obtaining in vivo medical diagnostic images, said composition comprising imaging agent(s) substantially completely contained within a polymeric shell;

  • wherein said polymeric shell comprises a biocompatible polymer which is substantially crosslinked by way of disulfide bonds, and wherein said crosslinked polymer is a synthetic polymer,wherein said polymer, prior to crosslinking, has covalently attached thereto sulfhydryl groups or disulfide groups,wherein said disulfide bonds are crosslinked directly, that is, without a crosslinking agent being used.

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