STAR Protocols (Mar 2023)

Quantify permeability using on-a-chip models in high-throughput applications

  • Camilla Soragni,
  • Tessa Vergroesen,
  • Nynke Hettema,
  • Gwenaëlle Rabussier,
  • Henriëtte L. Lanz,
  • Sebastian J. Trietsch,
  • Leon J. de Windt,
  • Chee P. Ng

Journal volume & issue
Vol. 4, no. 1
p. 102051

Abstract

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Summary: Traditionally, to quantify permeability of a biological barrier, the initial slope is used, based on the assumption of sink condition (concentration of the donor is constant, and the receiver increases less than 10%). With on-a-chip barrier models, this assumption fails in cell-free or leaky conditions, which requires the use of the exact solution. To encounter a time delay from performing the assay and acquiring the data, we present a protocol with the exact equation modified to incorporate a time offset. : Publisher’s note: Undertaking any experimental protocol requires adherence to local institutional guidelines for laboratory safety and ethics.

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