Computational (DFT) and experimental analysis of green-synthesized TiO₂ NPs: Characterizations and sustainable approach for photocatalytic and biomedical applications - Md. Rasel Islam; Md. Sihabul Islam Arpon; Kazi Mamunur Rahman Rifat; Pabitro Prosad Mondal; Md. Abdul Momin; Md. Faruk Hasan (Next Nanotechnology, 2026)