Question: Suggest surface modification ways for following cases a) grafting on polymer matrix b) making alumina surface more hydrophobic c) coating hydrophilic surface with ionic head

Suggest surface modification ways for following cases a) grafting on polymer matrix b) making alumina surface more hydrophobic c) coating hydrophilic surface with ionic head surfactant d) fluorescence dye containing highly ordered surface on gold substrate e) layer-by-layer PEI-Heparin coating on a substrate

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