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May 06, 2025, 05:31

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This review by Liu and He provides a comprehensive exploration of intelligent hydrogel-based dressings for diabetic wound management. Chronic diabetic wounds, characterized by impaired or delayed healing due to multiple physiological disruptions, demand innovative solutions. The authors systematically categorize hydrogels into natural, synthetic, and composite types, dissecting their structural and functional mechanisms while highlighting their clinical potential. Below is a critical analysis of the article’s strengths, limitations, and future implications. The article is well-organized, progressing logically from the pathophysiology of diabetic wounds to hydrogel design, responsiveness mechanisms, applications, and future challenges. This structure helps readers understand the progression from fundamental biological science to clinical findings in translational studies. The integration of materials science, nanotechnology, and biotechnology is a highlight. For instance, the discussion on composite hydrogels incorporating silver nanoparticles or conductive polymers demonstrates how hybrid materials enhance antibacterial efficacy and mimic bioelectrical environments. The inclusion of emerging technologies like 3D printing and real-time monitoring systems reflects a forward-thinking approach. The authors bolster their claims with recent preclinical and clinical studies (e.g., phase 4 trials of Fitostimoline and SANTYL hydrogels). References to advanced functionalities, such as glucose-responsive insulin release or photothermal antibacterial activity, are supported by robust experimental data, lending credibility to the proposed applications. The emphasis on personalized precision medicine aligns with current trends in healthcare. The concept of hydrogels adapting to wound microenvironment changes (pH, temperature, biomarkers) for tailored drug delivery represents a paradigm shift from traditional "one-size-fits-all" therapies. The article does have some limitations. In terms of clinical translation challenges, while the article acknowledges barriers like high costs and biocompatibility concerns, it lacks actionable strategies for overcoming these hurdles. For example, cost reduction could be addressed through scalable manufacturing techniques or public-private partnerships, yet these solutions are only briefly mentioned. Certain sections, particularly those detailing chemical cross-linking mechanisms or nanomaterial interactions, may alienate non-specialist readers. Simplifying jargon or incorporating analogies (e.g., comparing hydrogel networks to "smart sponges") could improve accessibility. In addition, long-term biocompatibility and potential side effects of nanomaterials (e.g., silver nanoparticle toxicity) are underexplored. A discussion on regulatory pathways or post-market surveillance would strengthen the clinical relevance of the review. For future direction of dressings development, combining hydrogel dressings with wearable sensors or AI-driven diagnostics could enable closed-loop systems for real-time wound management. For instance, hydrogels equipped with IoT-enabled sensors might autonomously adjust drug release based on cloud-analyzed biomarker data. Exploring eco-friendly materials (e.g., biodegradable polymers) and energy-efficient production methods would address environmental concerns. Additionally, cost-benefit analyses comparing hydrogel dressings to standard care could incentivize healthcare adoption. Future studies should prioritize patient feedback to improve usability, such as optimizing hydrogel adhesion for mobility or reducing dressing change frequency. Ethnographic studies on patient adherence could inform design modifications. In conclusion, Liu and He’s review underscores the transformative potential of intelligent hydrogels in diabetic wound care, bridging scientific innovation with clinical needs. By addressing microenvironmental challenges through responsive drug delivery, antibacterial action, and tissue regeneration, these materials represent a leap toward personalized medicine. However, translating laboratory success to bedside application requires tackling economic, technical, and regulatory barriers. Future efforts must prioritize interdisciplinary collaboration, patient-centric design, and sustainable scaling to unlock the full promise of intelligent hydrogels. This article serves as both a foundational reference and a call to action for researchers, clinicians, and policymakers to reimagine diabetic wound management.

First, thank you very much for your professional comments on the article published in World Journal of Diabetes. Second, we read your comments with great interest. You are welcome to format your valuable comments into a Letter to the Editor and submit it online to World Journal of Diabetes at https://www.f6publishing.com. There are no restrictions on the number of words, figures (color, B/W) or authors for a Letter to the Editor. In addition, the article processing charge will be exempted for this Letter to the Editor. As with all articles published by the Baishideng Publishing Group, the Letter to the Editor will be published online after completing peer review. The guidelines for a Letter to the Editor can be found at: https://www.wjgnet.com/bpg/GerInfo/219. Finally, we look forward to receiving your high-quality Letter to the Editor, which will promote academic communication and lead the development of this discipline.