Front Matter -- Extracellular Matrix Hydrogels from Decellularized Tissues for Biological and Biomedical Applications / Brendan C Jones, Nicola Elvassore, Paolo De Coppi, Giovanni G Giobbe -- Collagen-Based Systems to Mimic the Extracellular Environment / Umber Cheema, Vivek Mudera -- Designing Elastin-Like Recombinamers for Therapeutic and Regenerative Purposes / José Carlos Rodríguez-Cabello, Sara Escalera ☆, Diana Juanes-Gusano ☆, Mercedes Santos, Alessandra Girotti -- Enzyme-Assisted Hydrogel Formation for Tissue Engineering Applications / Sílvia Pérez-Rafael, Eva Ramon, Tzanko Tzanov -- Hierarchical Peptide- and Protein-Based Biomaterials: From Molecular Structure to Directed Self-assembly and Applications / Yinchen Yuan, Yejiao Shi, Helena S Azevedo -- Short Peptide Hydrogels for Biomedical Applications / Priyadarshi Chakraborty, Lihi Adler-Abramovich, Ehud Gazit -- Supramolecular Assemblies of Glycopeptides as Mimics of the Extracellular Matrix / Diana Soares da Costa, Alexandra Brito, Rui L Reis, Iva Pashkuleva -- Supramolecular Assemblies for Cancer Diagnosis and Treatment / Shuang Liu, Bing Xu -- Polyzwitterionic Hydrogels as Wound Dressing Materials / Konstans Ruseva, Elena Vassileva -- Hyaluronan-Based Hydrogels as Modulators of Cellular Behavior / Sara Amorim, Rui L Reis, Ricardo A Pires -- Hydrogel Fibers Produced via Microfluidics / Kongchang Wei, Claudio Toncelli, René M Rossi, Luciano F Boesel -- Embedding Hydrogels into Microfluidic Chips: Vascular Transport Analyses and Drug Delivery Optimization / Ana M Martins, Alexander B Cook, Martina Di Francesco, Maria Grazia Barbato, Sayanti Brahmachari, Martina Pannuzzo, Paolo Decuzzi -- Multifunctional Granular Hydrogels for Tissue-Specific Repair / Rui J Almeida, Ana Fernandes, Vítor M Gaspar, João F Mano -- Injectable Hydrogels as a Stem Cell Delivery Platform for Wound Healing / Qian Xu, A Sigen, Wenxin Wang -- Index