Multi-material digital light processing bioprinting of hydrogel-based microfluidic chips.
Multi-material digital light processing bioprinting of hydrogel-based microfluidic chips.
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DOI:
10.1088/1758-5090/ac2d78
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发表时间:
2021-11-24
期刊:
影响因子:
9
通讯作者:
中科院分区:
文献类型:
--
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Recent advancements in digital-light-processing (DLP)-based bioprinting and hydrogel engineering have enabled novel developments in organs-on-chips. In this work, we designed and developed a multi-material, DLP-based bioprinter for rapid, one-step prototyping of hydrogel-based microfluidic chips. A composite hydrogel bioink based on poly-ethylene-glycol-diacrylate (PEGDA) and gelatin methacryloyl (GelMA) was optimized through varying the bioprinting parameters such as light exposure time, bioink composition, and layer thickness. We showed a wide range of mechanical properties of the microfluidic chips for various ratios of GelMA:PEGDA. Microfluidic features of hydrogel-based chips were then tested using dynamic flow experiments. Human-derived tumor cells were encapsulated in the 3D bioprinted structures to demonstrate their bioactivity and cell-friendly environment. Cell seeding experiments then validated the efficacy of the selected bioinks for vascularized micro-tissues. Our biofabrication approach offers a useful tool for the rapid integration of micro-tissue models into organs-on-chips and high-throughput drug screening platforms.
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影响因子:
4.9
作者:
Browning, M. B.;Cereceres, S. N.;Luong, P. T.;Cosgriff-Hernandez, E. M.
通讯作者:
Cosgriff-Hernandez, E. M.
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通讯作者:
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影响因子:
19
作者:
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通讯作者:
Ingber, Donald E.
影响因子:
3.4
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通讯作者:
Tanter, M.