Watch the beat of heart muscle cells in a 3-D Life Hydrogel:

A suspension of freshly prepared cells from chicken embryo heart was embedded in 3-D Life Dextran Hydrogels modified with RGD Peptide and crosslinked with matrix metalloprotease-cleavable CD-Link. Aggregated heart muscle cells are surrounded by fibroblasts. Heart muscle cells courtesy of Dr. Udo Kraushaar (NMI Reutlingen, Electrophysiology Group, Germany).