Validation of UV–Vis spectrophotometric and colorimetric methods to quantify methotrexate in plasma and rat skin tissue: Application to in vitro release, ex vivo and in vivo studies from dissolving microarray patch loaded pH-sensitive nanoparticle

Nur Qadri Febrianti, Muhamad Gilang Ramadhan Tunggeng, Indianty Dwi Ramadhany, Rangga Meidianto Asri, Yulia Yusrini Djabir, Andi Dian Permana