Embedding antimicrobial peptides in hydrogels overcomes their stability problems and opens the door to applications spanning wound healing, cancer therapy, drug delivery, and surgical implants.
7+ application areasAMP hydrogels are being explored across antifungal therapy, wound healing, cancer treatment, bioimaging, nucleic acid delivery, immunomodulation, and surgical implants
What the researchers found
The review consolidates current knowledge on antimicrobial peptide hydrogels, highlighting that hydrogel encapsulation addresses the two main clinical barriers for AMPs: pH-dependent instability and enzymatic degradation in vivo.
A particular focus is placed on reactive oxygen species (ROS) modulation as a key therapeutic mechanism. The authors catalog applications across at least seven biomedical domains — antifungal therapy, wound healing, cancer treatment, bioimaging, nucleic acid delivery, immunomodulation, and surgical implants — demonstrating the versatility of the AMP-hydrogel platform.
Why it matters
Antibiotic resistance is one of the most urgent global health threats. Antimicrobial peptides are a promising alternative, but their fragility has stalled clinical adoption. By mapping out how hydrogel delivery systems solve these stability problems, this review provides a roadmap for translating AMP research into real-world medical products.
How the study worked
This is a comprehensive literature review. The authors synthesized findings from published studies on AMP hydrogel design, synthesis strategies, ROS-related mechanisms of action, and multimodal therapeutic applications. No original experimental data were generated.
What this study cannot tell us
As a review, it does not generate new experimental data. The field it covers is still largely preclinical, so most of the applications discussed have not yet been validated in human clinical trials. The review may also be subject to publication bias toward positive results in the underlying studies.
How to read the evidence
This is a narrative review article that synthesizes existing literature. It provides a broad overview and theoretical framework but does not include original experimental data or systematic meta-analysis.
When this study was published
Published in 2025, this is a very current review capturing the latest developments in a rapidly evolving field.
The bigger picture
This work sits at the intersection of peptide science, materials engineering, and antimicrobial resistance research. As conventional antibiotics lose effectiveness, combination strategies like AMP hydrogels represent a next-generation approach. The review's breadth — from wound dressings to cancer therapy to surgical implants — illustrates how a single peptide-material platform can address multiple unmet medical needs.
Questions still open
- Which specific AMP-hydrogel combinations are closest to entering human clinical trials?
- How do manufacturing costs and scalability compare to conventional antibiotic treatments?
- Can ROS-modulating AMP hydrogels be tuned precisely enough to avoid damaging healthy tissue while fighting infection?
Common questions
Why can't antimicrobial peptides just be used as pills or injections like regular antibiotics?
What role do reactive oxygen species (ROS) play in how these hydrogels fight infections?
Read the original research
Antimicrobial peptide hydrogels: synthesis, ROS regulation mechanism, and multimodal therapeutic applications in drug delivery systems.
Journal of materials chemistry. B, 13(45), 14556-14592
Citation
Cai, Dingjun; Li, Canhong; Zhu, Taifu; Li, Ruiqi; Zhang, Mu; Li, Xiaoling; Liu, Yilong; Dai, Zhifei; Wan, Lei; Lu, Haibin. (2025). Antimicrobial peptide hydrogels: synthesis, ROS regulation mechanism, and multimodal therapeutic applications in drug delivery systems.. Journal of materials chemistry. B, 13(45), 14556-14592. https://doi.org/10.1039/d5tb01846c