Abstract：
:The phenomenon of light-induced cell detachment is reported. Mouse calvaria-derived, pre-osteoblastic (MC3T3-E1) cells were cultured on a TiO(2) nanodot-coated quartz substrate. After 20 min of UV365 illumination, over 90% of the cells would detach from the surface. Moreover, intact cell sheets could be obtained in the same way. It was found that the as-obtained cells showed good viability, and could be used for further culture processes and other applications. Also, biocompatibility and safety characterizations indicated that the use of TiO(2) nanodots and UV365 illumination was safe for such cell detachment. It is suggested that adsorbed extracellular matrix proteins play key roles in developing cell sheets and ensuring biocompatibility. The present light-induced cell detachment method demonstrates a promising way for rapid cell/cell sheet harvesting.
journal_name
Biomaterialsjournal_title
Biomaterialsauthors
Hong Y,Yu M,Weng W,Cheng K,Wang H,Lin Jdoi
10.1016/j.biomaterials.2012.09.043subject
Has Abstractpub_date
2013-01-01 00:00:00pages
11-8issue
1eissn
0142-9612issn
1878-5905pii
S0142-9612(12)01051-4journal_volume
34pub_type
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