Jump to main content
Jump to site search

Issue 22, 2016
Previous Article Next Article

A paper-based in vitro model for on-chip investigation of the human respiratory system

Author affiliations

Abstract

Culturing cells at the air–liquid interface (ALI) is essential for creating functional in vitro models of lung tissues. We present the use of direct-patterned laser-treated hydrophobic paper as an effective semi-permeable membrane, ideal for ALI cell culture. The surface properties of the paper are modified through a selective CO2 laser-assisted treatment to create a unique porous substrate with hydrophilic regions that regulate fluid diffusion and cell attachment. To select the appropriate model, four promising hydrophobic films were compared with each other in terms of gas permeability and long-term strength in an aqueous environment (wet-strength). Among the investigated substrates, parchment paper showed the fastest rate of oxygen permeability (3 times more than conventional transwell cell culture membranes), with the least variation in its dry and wet tensile strengths (124 MPa and 58 MPa, remaining unchanged after 7 days of submersion in PBS).The final paper-based platform provides an ideal, robust, and inexpensive device for generating monolayers of lung epithelial cells on-chip in a high-throughput fashion for disease modelling and in vitro drug testing.

Graphical abstract: A paper-based in vitro model for on-chip investigation of the human respiratory system

Back to tab navigation
Please wait while Download options loads

Supplementary files

Publication details

The article was received on 07 Jul 2016, accepted on 26 Sep 2016 and first published on 27 Sep 2016


Article type: Communication
DOI: 10.1039/C6LC00866F
Citation: Lab Chip, 2016,16, 4319-4325
  •   Request permissions

    A paper-based in vitro model for on-chip investigation of the human respiratory system

    R. Rahimi, S. S. Htwe, M. Ochoa, A. Donaldson, M. Zieger, R. Sood, A. Tamayol, A. Khademhosseini, A. M. Ghaemmaghami and B. Ziaie, Lab Chip, 2016, 16, 4319
    DOI: 10.1039/C6LC00866F

Search articles by author