发明名称 |
Microfluidic devices with porous membranes for molecular sieving, metering, and separations |
摘要 |
Microfluidic devices with porous membranes for molecular sieving, metering, and separation of analyte fluids. In one aspect, a microfluidic device includes a substrate having input and output microfluidic channel sections separated by a porous membrane formed integral to the substrate. In another aspect, the porous membrane may comprise a thin membrane that is sandwiched between upper and lower substrate members. The microfluidic device may include one or a plurality of porous membranes. In one embodiment, a plurality of porous membranes having increasingly smaller pores are disposed along portions of a microfluidic channel. In another embodiment, a cascading series of upper and lower channels are employed, wherein each upper/lower channel interface is separated by a respective porous membrane. In another aspect, a porous membrane is rotatably coupled to a substrate within a microfluidic channel via a MEMS actuator to enable the porous membrane to be positioned in filtering and pass-through positions.
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申请公布号 |
US2004053422(A1) |
申请公布日期 |
2004.03.18 |
申请号 |
US20020246049 |
申请日期 |
2002.09.17 |
申请人 |
CHAN SELENA;SUNDARARAJAN NARAYAN;BERLIN ANDREW A.;YAMAKAWA MINEO |
发明人 |
CHAN SELENA;SUNDARARAJAN NARAYAN;BERLIN ANDREW A.;YAMAKAWA MINEO |
分类号 |
G01N37/00;B01D61/02;B01D61/14;B01D61/18;B01D61/20;B01D69/02;B01D71/02;B01J19/00;B01L3/00;B81B1/00;(IPC1-7):G01N1/10 |
主分类号 |
G01N37/00 |
代理机构 |
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代理人 |
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主权项 |
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地址 |
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