Fluorinated silica microchannel surfaces

Details Fluorinated silica microchannel surfaces Fluorinated silica microchannel surfaces

2005-03-15

2005-03-15

Lefkowitz, Edward (Department: 2855)

Measuring and testing

Volume or rate of flow

Expansible chamber

Reexamination Certificate

active

06865939

ABSTRACT:
A method for surface modification of microchannels and capillaries. The method produces a chemically inert surface having a lowered surface free energy and improved frictional properties by attaching a fluorinated alkane group to the surface. The coating is produced by hydrolysis of a silane agent that is functionalized with either alkoxy or chloro ligands and an uncharged C3-C10fluorinated alkane chain. It has been found that the extent of surface coverage can be controlled by controlling the contact time from a minimum of about 2 minutes to a maximum of 120 minutes for complete surface coverage.

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patent: 6727182 (2004-04-01), Akahori et al.
Gelest Inc. Product Bulletin, 2001.

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