Dr. Dawang Zhao Presents Detachable Microneedle Patch for Alopecia at 2025 Hong Kong Scholars Annual Conference
Dr. Dawang Zhao attended the 2025 Hong Kong Scholars Annual Conference, held on May 26 at City University of Hong Kong (CityU). He presented a detachable microneedle patch for alopecia, composed of a dissolvable hyaluronic acid layer and a biodegradable poly(propylene glycol-co-lactide) dimethacrylate (PPG-co-LA-DMA) matrix. This system enables sustained release of exosomes derived from adipose-derived stem cells, promoting macrophage M2 polarization and activating WNT signaling pathways. The technology offers a scalable, patient-friendly approach for treating immune-mediated hair loss and holds strong promise for clinical translation.