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Bacteria-infected wounds are enormous clinical obstacles and cause huge burdens to patients and society. Recently, many biomaterials are designed to treat bacterial infected wounds. Among various biomaterials, antibacterial hydrogels are one of the most recommended groups due to their ability to load antibacterial drugs and cover wounds while maintaining a moist environment. In this review, we present the progress in antibacterial hydrogels for bacteria-infected wound treatment. We first summarize the pathophysiology of bacteria-infected wounds, which demonstrates the clinical manifestations and offers clinical therapy projects. Afterwards, we describe the different morphologies of antibacterial hydrogels. Then, we focus on the various practical applications and therapeutic effects of antibacterial hydrogels. At last, the recent problems and outlook of antibacterial hydrogels for bacteria-infected wound healing are summarized. We hope this review can inspire the development of bacteria-infected wound treatment and the related biomedical fields.

Spinal cord injury (SCI), which causes irreversible damage in both sensory and motor function, is considered an insurmountable challenge in the field of medicine. The previous researchers have developed many kinds of biomaterials for SCI, and spinal cord conduits (SCCs) are an important classification for bridging spinal cord tissues while performing their corresponding functions. In this review, we first describe the original sources of the different polymers that determine the properties of the different SCCs. Afterwards, we focus on the different types of crosslinking methods used for preparing SCCs. Then, various practical applications and therapeutic effects of SCCs are summarized and discussed. Finally, we conclude the existing limitations of current SCCs. We hope that this paper will serve as a further inspiration for the development of SCCs in future.