▎ 摘　　要

NOVELTY - Polycationic peptide conjugated graphene-metal nanocomplex has a general molecular structure of G, M, S and R, which is graphene, noble metal nanoparticle, thio containing amine compound and polycationic peptide, where the nanocomplex is provided in presence of graphene, metal nanoparticle and polycationic functional group, and black to reddish brown in color, and comprises metal nanoparticles of 1100 nm, and exhibits sparingly solubility in water and polar solvent, insolubility in nonpolar organic solvent, net positive charge, adsorptive property, and polycationic feature. USE - The polycationic peptide conjugated graphene-metal nanocomplex is useful for providing antifouling, and antibacterial effects (claimed) with respect to Gram-negative, and Gram-positive bacteria such as Escherichia coli, Pseudomonas aeruginosa, Staphylococcus aureus, and Bacillus subtilis. The nanocomplex is also used in leather industry for designing smart materials, and treating, and purifying wastewater by removing both cations and anions from water. ADVANTAGE - The polycationic peptide conjugated graphene-metal nanocomplex is sparingly soluble in water as well as other polar solvent, and insoluble in nonpolar organic solvents, is simple to perform and cost-effective, does not require any toxic and highly flammable organic solvents, high temperature, pressure, expensive chemicals and sophisticated equipment/instrument, has enhanced performance and stability, and prevents adhesion of bacteria. DETAILED DESCRIPTION - Polycationic peptide conjugated graphene-metal nanocomplex has a general molecular structure of G, M, S and R, which is graphene, noble metal nanoparticles, thio containing amine compounds and polycationic peptide, where the nanocomplex in presence of graphene, metal nanoparticle and polycationic functional group, and black to reddish brown in color, comprises a metal nanoparticles of 1100 nm, and further exhibits a sparingly solubility in water as well as other polar solvent, insolubility in nonpolar organic solvents, stability at pH of 2-10, and a temperature of 4-40 degrees C for three months, net positive charge at a pH of 1-7, adsorptive property towards cations and anions, and polycationic feature of the peptide. The structure cannot be drawn because it is illegible in the original patent specification. An INDEPENDENT CLAIM is included for process for preparing polycationic peptide conjugated graphene-metal nanocomplex.