Background Three-dimensional (3D) hydrogel-based stem cell therapies contribute to improved healing efficacy in treating illnesses, and determining the perfect mechanical strength from the hydrogel is normally important for healing success. a 3D hydrogel scaffold. Electronic supplementary materials The online edition of this content (doi:10.1186/s13550-014-0061-3) contains supplementary materials, which is open to authorized users. bioluminescence imaging,… Continue reading Background Three-dimensional (3D) hydrogel-based stem cell therapies contribute to improved healing