ArticleJournal of nanobiotechnology2026
Wireless flexible patch based on ultrasound-responsive SenA@ZIF-8 release for on-demand medication of periodontitis.
Article in Journal of nanobiotechnology, 2026. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Not yet cited in PubMed.
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Abstract
Periodontitis is a prevalent chronic inflammatory disease that causes progressive periodontal tissue loss and systemic complications. However, conventional therapies often remove biofilms without fully resolving inflammation or regenerating tissue. Here, we report a flexible wireless ultrasonic patch loaded with ZIF-8 nanoparticles containing the anti-inflammatory antioxidant senkyunolide A (SenA@ZIF-8) for on-demand drug release. A piezoelectric transducer converts 1 MHz ultrasound into ≈ 10 V, 9 mA electrical output, heating a tridecanoic acid phase-change matrix to ≈ 43 °C to trigger SenA@ZIF-8 release. In vitro, SenA@ZIF-8 was biocompatible and outperformed free SenA in protecting periodontal ligament stem cells from H₂O₂-induced oxidative damage: it reduced intracellular ROS levels and restored the activity of antioxidant enzymes. In macrophages, ZIF-8 loading enhanced intracellular SenA uptake and markedly suppressed LPS-induced proinflammatory mediator expression while promoting M2 marker expression. In a rabbit model of ligature-induced periodontitis, repeated ultrasonic-triggered SenA@ZIF-8 delivery markedly reduced periodontal inflammation. Micro‑computed tomography (Micro-CT) and histology showed that the device-treated sites exhibited the greatest alveolar bone regeneration and collagen deposition, accompanied by minimal inflammation. This innovative MOF-based ultrasonic patch can relieve oxidative stress and inflammation through minimally invasive, precise, and on-demand drug delivery, thereby promoting periodontal regeneration. This approach has significant translational potential as an adjunct therapy to improve periodontal treatment outcomes and patient compliance.
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