Fig. 7.

Labelled morphological features observed in attached human dermal fibroblasts in Fig. 6 a) filopodia (white arrows) extending from the cells to the substrate in EDC-NHS crosslinked samples b) ventral stress fibres (blue arrows) visible on the genipin and TG2 crosslinked films. White scale bar on images corresponds to 10 m. Fibres of genipin crosslinked collagen also auto-fluoresce (green arrow) in the phalloidin channel. (For interpretation of the references to colour in this figure legend, the reader is referred to the Web version of this article.)