A hybrid 3D printed and paper-based microfluidic platform for investigating the cell's apoptosis and intracellular cross-talk.

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ID: 93176
2020
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Abstract
In this paper, we firstly proposed a novel hybrid 3-dimensional (3D) printed and paper-based microfluidic platform and applied it for investigating the cell's apoptosis and intracellular cross-talk. The fabrication of 3D printed microfluidic chip is much easier than PDMS chip and can be applied in many common labs without soft-lithogrophy fabrication equipment. Moreover, 3D printed can be perfectly combined with paper-based chips which can provide 3D scaffold for cell culture and analysis. In addition, the paper chips can be disposable after using and it greatly reduce the experimental cost. We integrated "Christmas Tree" structure in the top layer of the 3D printed microfluidic chip to generate continuous concentration gradient, and the bottom layer contained paper-based chips as cell culture area. The two-layer structure allows the concentration gradient forming layer to be separated from the cell culture layer, which can simplify the planting of cells in the microfluidic chip and make sure the cells stay in the culture chambers and don't clog the microfluidic channels. Applying this hybrid platform we examined the effect of H2S on cancer cells. Continuous exposure to low concentration of H2S inhibited cancer cell SMMC-7721 proliferation by inducing cell apoptosis. We also found that two gaseous molecules H2S and NO have cross-talk in cancer cells, they formed bioactive intermediate polysulfides in cancer cells. It is expected that this novel hybrid 3D printed and paper-based microfluidic platform has widespread application prospects in cell's investigation.
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liu2020aacs Use this key to autocite in the manuscript while using SciMatic Manuscript Manager or Thesis Manager
Authors Liu, Ping;Li, Bowei;Fu, Longwen;Huang, Yan;Man, Mingsan;Qi, Ji;Sun, Xiyan;Kang, Qi;Shen, Dazhong;Chen, Lingxin;
Journal ACS sensors
Year 2020
DOI
10.1021/acssensors.9b02205
URL
Keywords
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