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1.发明公开SURFACES, INCLUDING MICROFLUIDIC CHANNELS, WITH CONTROLLED WETTING PROPERTIES 审中-公开微流体通道容纳区域具有受控的润湿性能
公开(公告)号：EP2271581A1
公开(公告)日：2011-01-12
申请号：EP09724102.0
申请日：2009-02-11
CPC分类号： F16L9/14 , B01F3/0807 , B01F13/0062 , B01J2219/00619 , B01J2219/00635 , B01J2219/00637 , B01L3/502707 , B81B2201/058 , B81B2203/0338 , B81C1/00206
摘要： The present invention generally relates to coating materials, including photoactive coating materials. In some aspects of the invention, a sol-gel is provided that can be formed as a coating on a microfluidic channel. One or more portions of the sol-gel can be reacted to alter its hydrophobicity, in some cases. For instance, in one set of embodiments, a portion of the sol-gel may be exposed to light, such as ultraviolet light, which can be used to induce a chemical reaction in the sol-gel that alters its hydrophobicity. In one set of embodiments, the sol-gel can include a photoinitiator, that upon exposure to light, produces radicals. Optionally, the photoinitiator may be conjugated to a silane or other material within the sol-gel. The radicals so produced may be used to cause a polymerization reaction to occur on the surface of the sol-gel, thus altering the hydrophobicity of the surface. In some cases, various portions may be reacted or left unreacted, e.g., by controlling exposure to light (for instance, using a mask). Such treated surfaces within a microfluidic channel may be useful in a wide variety of applications, for instance, in the creation of emulsions such as multiple emulsions.
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