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Researchers developed a birefringent in-channel chitosan micromembrane that can sense and control microflows using a simple cross-polarizer and calibration curve.

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What they did

System
not_BES

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Abstract

We report a flow sensitive birefringent in-channel chitosan micromembrane. Using a simple cross-polarizer and a calibration curve, the membrane functions as a flow rate meter, which also works as a feedback element for a flow control system.

Key findings

  • The membrane is sensitive to flow rates and can be used as a flow rate meter.
  • The membrane can also be used as a feedback element for a flow control system.
  • The use of a cross-polarizer and calibration curve enables the membrane to function as a flow sensor and controller.

Keywords

PolarizerBirefringenceChannel (broadcasting)Volumetric flow rateCalibrationFlow (mathematics)

Identifiers

DOI
10.1039/d3lc00985h
Journal
Lab on a Chip
Year
2024