The document describes the synthesis of several composite samples using cucamelon powder extract. Sample preparation involved extracting cucamelon powder for 5 hours at 80°C, filtering the extract, and preparing 0.04M solutions by adding C-Tab and zinc acetate. The solutions were treated using hydrothermal and centrifugation methods. Separate sections describe preparing silver nitrate, copper acetate, and silver nitrate-doped composites by adding the corresponding metal salts to the cucamelon extract in solution and treating in an autoclave.