A novel application of quaternary ammonium compounds as antibacterial hybrid coating on glass surfaces

Autores: Muhammad Jawwad Saif|Jamil Anwar|Munawar Ali Munawar
Fuente: Langmuir
25, 377-379
2009

A hybrid coating is prepared on a glass surface by a sol-gel process using tetraethoxysilane (TEOS) and Q4N+-Si(OR)3. Transparent coatings with smooth surfaces were investigated against both Gram-positive (Escherichia coli) and Gram-negative bacteria (Staphylococcus aureus). A rapid decrease of the count for both strains was observed within 72 h.Asignificant correlation has been observed between the concentration ofQ4N+-Si(OR)S and the antibacterial activity which has been thoroughly investigated