Colloidal sized metal-polysaccharide particles

Details Colloidal sized metal-polysaccharide particles Colloidal sized metal-polysaccharide particles

1985-01-14

1988-05-17

Waddell, Frederick E.

Drug, bio-affecting and body treating compositions

Radionuclide or intended radionuclide containing; adjuvant...

Molecular bilayer structure

424132, 424147, 424493, 514 6, 514 59, 128653, 536 51, G01N 100, G01N 2500, G01N 3100

Patent

active

047447605

ABSTRACT:
Colloidal sized particles comprising metal particle coated with a water soluble polysaccharide derivative. The derivative is such that when it is not coating the metal, it has at least one, and preferably a number, of pendant functional groups each of which has a positive charge in aqueous solution. The metal is preferably selected from the group consisting of gold, platinum, and silver, whereas the polysaccharide may usefully be selected from the group consisting of dextran and mannan. The particles can be used as markers for biologically active molecules, or for separating different types of such molecules.

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