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Method for separating plasma from blood and silanized glass fibres therefor

  • US 4,786,603 A
  • Filed: 03/04/1987
  • Issued: 11/22/1988
  • Est. Priority Date: 07/04/1985
  • Status: Expired due to Term
First Claim
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1. An agent for separating plasma from blood for haemostasiological tests which comprises a layer of glass fibres having bonded to their surfaces a layer of silane molecules of the formula ##STR4## wherein each molecule is bonded at its end oxygen to a surface of a glass fibre in the layer of glass fibres,R1 is C2 -C6 alkylene,X is hydroxyl, C1 -C6 alkoxy, an alkoxy radical having n carbon atoms and up to (n-1) hydroxyl groups in which n is an integer from 1 to 6, or an amino acid or peptide residue;

  • and each of R'"'"'3 and R"3 is C1 -C6 alkyl, an oxygen bridge to the silicon atom of another silane molecule, or an oxygen bridge to a glass surface,said fibres having an average diameter of from 0.2 to 5μ and

    said glass fiber layer having density of 0.1 to 0.5 g./cm3.

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