Synthesis and Characterization of a Nata De Coco Plasmonic Film Incorporating Zinc Nanoparticles as A Cuvette-Type Sensor Chip for Diazinon Pesticide Detection H. Fitra, A. H. Watoni, L.O.A.N. Ramadhan, L. O. Kadidae, Imran ., Alimin, C. Baskar, I. W. Sutapa International Journal of Acta Material Vol. 3 No. 1 2026