Yihu Wang

Conflicts of Interest The authors declare no conflicts of interest. Data Availability Statement The data that support the findings of this study are available from the corresponding author upon reasonable request.

Gelatin had been widely used in the fields of food, cosmetics, biomedicine, etc. However, bacterial infection remained a critical threat in these fields and had serious risks to human health and life. Unfortunately, gelatin lacked inherent antibacterial properties, which limited its broader applications. Although several strategies had been developed to synthesize modified gelatin with antibacterial properties, it was still a challenge to prepare antibacterial gelatin at low cost.