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(A) Calcium measures per hydrogel formulation (n=3–4 per formulation). *Significantly different from 100:0 gels; #significantly different from 95:5 gels. (B) Representative images of PEG-PDMSstar hydrogel sections stained for osteocalcin (blue), SM22α (red), and calcium deposits (brown–black), n=3 sections per sample per gel type. The scale bar in the upper right-hand image equals 40 μm and applies to all images. Color images available online at www.liebertpub.com/tea
