CChemistry Africa3/24/2026Eco-Designed Polymer–Oxide Nanocomposites: NiO-500 as a Tunable Dielectric Filler for Methyl-Cellulose with Controllable Refractive-Index Dispersion and Band-Gap NarrowingDara M. Aziz·Dilshad Karim Hama·Dyari Mustafa Mamand·Sangar Ali Hassan·Shujahadeen B. Aziz·Jwankar Abdulla Shekh KhdirRead at Chemistry AfricaTagsDielectric materials and actuatorsBiomedical Engineering