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Film for biosensors and preparation method

  • US 10,321,864 B2
  • Filed: 04/04/2014
  • Issued: 06/18/2019
  • Est. Priority Date: 01/02/2014
  • Status: Active Grant
First Claim
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1. An implantable biosensor, comprising the following functional layers:

  • an anti-interference layer, an enzyme layer, a regulation layer and a biocompatibility layer,wherein the functional layers are produced from an organosilicon polymer, and raw materials of the organosilicon polymer comprising;

    100 parts by weight of at least one active organosilane, wherein the active organosilane comprises one or more functional groups;

    at least one curing agent;

    from 0 to 100 parts by weight of at least one hydrophilic copolymer, wherein the hydrophilic copolymer is a hydrophilic polymer with one or more functional groups; and

    from 0 to 20 parts by weight of at least one modifier; and

    from 0 to 10 parts by weight of at least one filler;

    wherein the curing agent is a chain extender with two degrees of functionality or a cross-linking agent with three or more functional groups, and the amount of the curing agent is determined as follows;

    if the curing agent is a chain extender, the number of moles of the curing agent functional groups is the sum of the number of moles of the functional groups of the active organosilane and the number of moles of the functional groups of the hydrophilic copolymer, andif the curing agent is a cross-linking agent, the number of moles of the curing agent functional groups is 1.05 to 1.20 times the sum of the number of moles of the functional groups of the active organosilane and the number of moles of the functional groups of the hydrophilic copolymer.

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