Young-Jin Kim, Mitsuhiro Ebara, and Takao Aoyagi
http://onlinelibrary.wiley.com/doi/10.1002/anie.201204139/full
Nanofibrous webs were made by electrospinning copolymer of NIPAAm and
benzophenone, which can photocrosslink the nanofibers into a
temperature-responsive web. Upon heating to 37C, the web is open for the
cells (normal human dermal fibroblasts) and cooling to 4C, encapsulates
the cells. Re-heating to 37C releases the trapped cells, and this
cooling and re-heating process can be repeated to release more cells. A
live/dead assay and MTT viabiltiy assay shows the cells are living and
can proliferate.
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