Antimicrobial and water-triggered release characteristics of a copper sulfate-polyvinyl acetate adhesive composite

7th International Conference on Key Engineering Materials

材料科学;工业技术

De Jesus, A.P.O.^1 ; Roxas-Villanueva, R.M.L.^1 ; Herrera, M.U.^1

Institute of Mathematical Sciences and Physics, University of the Philippines, Los Baños, Laguna, Philippines^1

关键词: Anti-microbial activity;    Antimicrobial solutions;    Copper sulfate;    Growth of bacteria;    Saturation time;    Staphylococcus aureus;    Triggered release;    Water-soluble substances;   

Others  :  https://iopscience.iop.org/article/10.1088/1757-899X/201/1/012007/pdf
DOI  :  10.1088/1757-899X/201/1/012007

来源: IOP

【 摘 要 】

Water-triggered release of antimicrobial solutions is advantageous in inhibiting the growth of bacteria and fungi in moist and wet environments. In this study, we fabricated a composite, by mixing polyvinyl acetate adhesive with copper sulfate solution, which exhibits antimicrobial activities against bacteria. Polyvinyl acetate adhesive serves as the binder and water soluble substance while copper sulfate serves as the antimicrobial agent. The composite was coated in an acetate film and air-dried. To monitor the rate of release of copper ions, the composite was submerged in water and the conductivity was measured. The conductivity saturation time was determined. The composite showed antimicrobial activity against Escherichia coli (Gram-negative) and Staphylococcus aureus (Gram-positive).