Pore-selective silver (Ag)-functionalized honeycomb-patterned (HCP) polystyrene (PS) films were fabricated via a modified breath figure method using an interfacial chemical reaction and its application for an antibacterial film using the role of micro-trapping pit was systematically studied. PS polymer solution containing ferrocene which acts as a reducing agent was cast under humid conditions containing silver nitrate (AgNO3) to induce an interfacial chemical reaction between ferrocene and AgNO3 at the water droplet/polymer solution interface. The antibacterial activity of the film against Escherichia coli and Staphylococcus aureus was assessed by the micro-dilution method and crystal violet assay. The study of BF for a functional HCP film by accompanying an interfacial chemical reaction for the poreselective Ag functionalization shows that specific metal or inorganic materials could be poreselectively functionalized by a similar method under various conditions, thus potentially giving the HCP films various applications.
Do Sung Huh is working as a Professor of Department of Chemistry, Inje University, South Korea. He completed PhD in Korea Advanced Science and Technology (1989).
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