Chung Ang University Sep 10 2025 Neurological diseases affect millions worldwide, and the need for long-term patient-friendly treatments has never been greater. While needle-based injections are the standard for most therapies, regular drug injections can often be painful and inconvenient. Microneedles-which are tiny, micron-sized needle systems- have emerged as a promising alternative to conventional needles and offer a pain free way to deliver medicines. However, most existing microneedles