Room temperature stable agarose solutions

Details Room temperature stable agarose solutions Room temperature stable agarose solutions

2011-08-30

2011-08-30

Crane, Lawrence E (Department: 1623)

Organic compounds -- part of the class 532-570 series

Organic compounds

Carbohydrates or derivatives

C536S112000, C536S123120, C536S124000

Reexamination Certificate

active

08008476

ABSTRACT:
The present invention provides methods for making porous crosslinked polysaccharide hydrogel coated structures. The methods include impregnating a porous substrate with a room temperature stable aqueous polysaccharide solution containing, water, a polysaccharide having a concentration in the aqueous solution from about 0.1% to about 20%, a gel-inhibiting agent having a concentration in the aqueous solution from about 18 to about 54%, and an anionic fluorosurfactant having a concentration in the aqueous solution from about 0.001% to about 10% by total weight of the aqueous solution. Followed by evaporating the water from the polysaccharide coating; and exposing the dehydrated polysaccharide coating to a gelling agent form a porous polysaccharide hydrogel coated substrate. The hydrogel coated substrate is exposed to a crosslinking agent to form a porous crosslinked polysaccharide hydrogel coated substrate.

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