Smart Microneedles in Lab Tests Deliver Hydrogen for Post-Surgery Pain
Sustained-Release Photothermal Microneedles for Postoperative Incisional Analgesia and Wound Healing via Hydrogen Therapy
Research hubs: Brain & Nervous System · Skin & Dermatology System
This research was done on cells or tissue in a lab, not in people or animals.
- Evidence type
- Laboratory study (cells or tissue)
- Authors
- Aining Zhang, Xue Jiang, Bingrui Xiong, Jiayi Chen, Xin Liu, Siyuan Wang, Bofu li, Mian Peng, Wei Li
- Journal
- Advanced Science
- Year
- 2025
- PMID
- 40548456
- Study Type
- Rat
- Delivery
- Gas (Sustained Release)
- Dose
- sustained-release via photothermal microneedles for up to 5 days
- Duration
- 5 days
- Outcome
- Positive
- Peer Reviewed
- Yes
- Cited by
- 15 (OpenAlex, as of November 2026)
- Country
- China
TL;DR
Researchers developed a new type of skin patch with tiny needles that can release pain relief medication and hydrogen gas to help manage pain and heal wounds after surgery.
Key Finding
Microneedles delivering sustained hydrogen therapy provided pain relief for up to 5 days in rats while simultaneously promoting wound healing at surgical incision sites.
Summary
Researchers developed a new type of microneedle patch (tiny needle-like structures) that delivers hydrogen gas and pain medication directly through the skin at surgical wound sites. In rat studies, the patch released hydrogen continuously for up to 5 days and reduced pain while also helping wounds heal faster, especially in the acidic environment created by fresh surgical cuts.
Practical Takeaway
This is early-stage research conducted only in rats, so it's not yet clear if this approach would work safely or effectively in humans. The study does suggest hydrogen may have dual benefits for pain and healing, but much more research—including human trials—would be needed before this technology could be used clinically.
Abstract (excerpt)
Effective management of postoperative pain and wound healing presents significant challenges in clinical settings, driving the need for innovative therapeutic approaches. The analgesic and wound healing effects of hydrogen (H2) have gradually been recognized; however, the lack of efficient hydrogen…