Macro- and microstructural tracking of ageing-related changes of papaverine hydrochloride-loaded electrospun nanofibrous buccal sheets
Keywords: ارتو پوزیترونیم; FTIR spectroscopy; Fourier transform infrared spectroscopy; HPC; hydroxypropyl cellulose; o-Ps; ortho-positronium; PVA; poly(vinyl alcohol); PALS; positron annihilation lifetime spectroscopy; SEM; scanning electronmicroscopy; Papaverine-hydrochloride; Nan