G - Physics – 01 – N
Patent
G - Physics
01
N
G01N 27/30 (2006.01) B05C 5/02 (2006.01) C12Q 1/00 (2006.01)
Patent
CA 2529378
The present application concerns a reagent coating mass which can be used in slot-die-coating of flat support materials in the manufacturing processes of test strips. Advantageously, the reagent mass of the invention exhibits certain superior rheological properties such as viscosity, surface tension and thixotropy. The reagent typically comprises an enzyme, a redox radiator and viscosity modifiers and thickeners, eg. Xanthan gum, silica, caboxy methyl cellulose, and surfactants to yield between 70 and 130 mPa.s and a surface tension between 30 and 50 nM/m. The reagent mass is preferably used to coat thin, narrow and homogeneous stripes of reagent material onto flat web material.
L'invention concerne une masse de revêtement réactive qui peut être utilisée dans le couchage à filière plate de matières de support plates pour la fabrication de bandelettes réactives. La masse réactive de l'invention présente avantageusement certaines propriétés rhéologiques supérieures telles que la viscosité, la tension superficielle et la thixotropie. La masse réactive est préférablement utilisée pour coucher des bandelettes minces, étroites et homogènes de substance réactive sur des bandes plates.
Mosoiu Dan
Wilsey Christopher D.
F.hoffmann-La Roche Ag
Norton Rose Or S.e.n.c.r.l. S.r.l./llp
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