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Table 1 Permeability coefficients for metabolites and oxygen (PmO 2 ) in presence of a polyamide membrane (pore size 0.2 μm) with and without mucus layer (200 μm) (n = 2)

From: The HMI™ module: a new tool to study the Host-Microbiota Interaction in the human gastrointestinal tract in vitro

Polyamide membrane FITC dextran Oxygen
  4 kDa 20 kDa 150 kDa  
With mucus 2.4 ± 10−6 2.5 ± 10−7 7.1 ± 10−9 2.5 ± 10−4
Without mucus 5.6 ± 10−6 4.1 ± 10−7 6.5 ± 10−7 NDa
  1. aND = not determined.
  2. Data are expressed as cm sec−1. The permeation coefficient was lower in presence of the mucus and with the increase of the FITC dextran kDa.