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Relative fluorescent intensity of α-actinin and vinculin for cells on the substrates. Sections of cardiac cells expressing vinculin and α-actinin proteins on the different substrates are shown. Fluorescence intensity profiles depict the area of the line drawn in the merged images. The arrows show well-defined mature focal adhesions. Scale bar: 10 μm (reproduced with permission from Bajaj et al.16). Color images available online at www.liebertpub.com/teb
