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. 2012 Apr 13;18(13-14):1419–1430. doi: 10.1089/ten.tea.2011.0474

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Copyright 2012, Mary Ann Liebert, Inc.

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FIG. 1. — Scanning electron microscopy micrograph of porous membrane substrates used for supporting human embryonic stem cell (hESC) proliferation and differentiation. Polyethylene terephthalate (PET) (A) and polyester (PE) (B) porous membrane substrates were tested for hESC growth and differentiation. (C) and (D) are Matrigel-coated PET and PE membrane substrates. The pore sizes of the PE and PET membrane are 0.4 and 1 μm, respectively. Scale bars: 1 μm in (A) and (B), 2 μm in (C), and 1 μm in (D).