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Representative fluorescent images of calcein-AM-labeled INS1 cells encapsulated in 1% Triton-PI pECM hydrogel. Viability assay showed a homogeneous cell distribution throughout the scaffold after 1 (A, B), 4 (C, D), 7 (E, F), and 10 (G, H) days in culture (N). Cell density slightly increased after 7 days (E–H, M), indicative of cell proliferation, and clusters of encapsulated cells were present after 7 (I, J) and 10 (K, L) days. Color images available online at www.liebertpub.com/tec
