Active microvalves and passive microvalves in microfluidic chips. (A) Typical structure of active microvalve: sliding arm. PDMS structures contain a guiding channel and a fluidic channel and were bonded to a planar PDMS surface. (B) Pinch valve operating (IMAGE)

Beijing Institute of Technology Press Co., Ltd

Active microvalves and passive microvalves in microfluidic chips. (A) Typical structure of active microvalve: sliding arm. PDMS structures contain a guiding channel and a fluidic channel and were bonded to a planar PDMS surface. (B) Pinch valve operating

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Active microvalves and passive microvalves in microfluidic chips. (A) Typical structure of active microvalve: sliding arm. PDMS structures contain a guiding channel and a fluidic channel and were bonded to a planar PDMS surface. (B) Pinch valve operating principle. (C) Phase change microvalve operating principle. (D) Hot bubble microvalve operating principle.

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Space: Science & Technology

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