Globally, burns pose a significant health concern, impairing the skin’s normal function and elevating the risk of bacterial infection. Traditional burn dressings often fail to deliver the anticipated therapeutic benefits. Hence, there is an urgent need to develop an ideal wound dressing that exhibits satisfactory antibacterial properties, biocompatibility, and the ability to expedite burn wound healing. Here, we prepared chitosan-based hydrogel (CS/GP), and then loaded copper-tin -sulfur (Cu₃SnS₄) synthesized by hydrothermal method into the hydrogel to construct a new hydrogel dressing (CS/GP/Cu₃SnS₄). In vitro antibacterial tests demonstrated that the CS/GP/Cu₃SnS₄ hydrogel dressing exhibits considerable antibacterial properties, achieving an antibacterial rate exceeding 95% after 4 h of contact with Staphylococcus aureus (S. aureus) and Escherichia coli (E. coli). Additionally, CCK-8 and live/dead cell staining experiments confirmed the dressing’s good biocompatibility. Furthermore, in vivo experiments confirmed that the CS/GP/Cu₃SnS₄ hydrogel dressing demonstrates superior wound healing performance compared to the control group. In conclusion, the CS/GP/Cu₃SnS₄ hydrogel shows potential application prospects as a burn wound dressing.

Mesoporous bioglass (MBG) with excellent osteointegration, osteoinduction, and biodegradability is a promising material for bone regeneration. However, its clinical application is hindered by complex processing and a lack of personalization, low mechanical strength, and uncontrollable degradation rate. In this study, we developed a double-bond-functionalized photocurable mesoporous bioglass (PMBG) sol that enabled ultrafast photopolymerization within 5 s. By further integrating nanosized tricalcium phosphate (TCP) particles through three-dimensional (3D) printing technology, we fabricated personalized and highly porous PMBG/TCP biphasic scaffolds. The mechanical properties and degradation behavior of the scaffolds were regulated by varying the amount of TCP doping. In vitro and in vivo experiments verified that PMBG/TCP scaffolds slowly released SiO44- and Ca2+, forming a vascularized bone regeneration microenvironment within the fully interconnected pore channels of the scaffold. This microenvironment promoted angiogenesis and accelerated bone tissue regeneration. Overall, this work demonstrates the solution to the problem of complex processing and lack of personalization in bioglass scaffolds, and the developed PMBG/TCP biphasic scaffold is an ideal material for bone regeneration applications with broad clinical prospects.