期刊
JOURNAL OF BIOSCIENCE AND BIOENGINEERING
卷 127, 期 5, 页码 641-646出版社
SOC BIOSCIENCE BIOENGINEERING JAPAN
DOI: 10.1016/j.jbiosc.2018.10.019
关键词
Microfluidics; Organ-on-a-chip; Cell-based assay; Glass; Polydimethylsiloxane; Absorption; Cell culture; Flow control
The use of organ-on-a-chip (OOC) devices is a promising alternative to existing cell-based assays and animal testing in drug discovery. A rapid prototyping method with polydimethylsiloxane (PDMS) is widely used for developing OOC devices. However, because PDMS tends to absorb small hydrophobic molecules, the loss of test compounds in cell based assays and increases in background fluorescence during observation often lead to biased results in cell-based assays. To address this issue, we have fabricated a glass-based OOC device and characterized the medium flow and molecular absorption properties in comparison with PDMS-based devices. Consequently, we revealed that the glass device generated a stable medium flow, restricted the absorption of small hydrophobic molecules, and showed enhanced cell adhesiveness. This glass device is expected to be applicable to precise cell-based assays to evaluate small hydrophobic molecules, for which PDMS devices cannot be applied because of their absorption of small hydrophobic molecules. (C) 2018, The Society for Biotechnology, Japan. All rights reserved.
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