TY - JOUR
T1 - Assessment of antimicrobial activity of nanosized Ag doped TiO2 colloids
AU - Yaşa, Ihsan
AU - Lkhagvajav, Natsag
AU - Koizhaiganova, Meruyert
AU - Çelik, Erdal
AU - Sari, Özcan
PY - 2012/7
Y1 - 2012/7
N2 - In the present research, the antimicrobial effects of nanosized silver (Ag) doped TiO2 colloidal solutions prepared using a sol-gel technique were investigated. In order to determine the solution characteristics, the turbidity, viscosity and pH of the colloidal solutions were measured. Differential thermal analysis-thermogravimetry equipment was used to determine the chemical structures and reaction types of the films formed from these solutions. The morphology of Ag doped TiO2 nanoparticles was evaluated by atomic force microscopy. The disc diffusion method was employed to explore antimicrobial activity, and the Broth Microdilution method was used to obtain MIC values of nanosized Ag doped TiO2 colloidal solutions against the test microorganisms Escherichia coli, Staphylococcus aureus,Candida albicans, Bacillus subtilis, and Salmonella typhimurium. It was found that the silver doped TiO2 nanoparticles inhibited the growth and multiplication of the test microorganisms, including the fungus C. albicans. Antimicrobial activity was observed against all tested microorganisms at a very low concentration of 1. 125-2. 81 μg/ml of nano silver in 1-25 % Ag-TiO2 solutions.
AB - In the present research, the antimicrobial effects of nanosized silver (Ag) doped TiO2 colloidal solutions prepared using a sol-gel technique were investigated. In order to determine the solution characteristics, the turbidity, viscosity and pH of the colloidal solutions were measured. Differential thermal analysis-thermogravimetry equipment was used to determine the chemical structures and reaction types of the films formed from these solutions. The morphology of Ag doped TiO2 nanoparticles was evaluated by atomic force microscopy. The disc diffusion method was employed to explore antimicrobial activity, and the Broth Microdilution method was used to obtain MIC values of nanosized Ag doped TiO2 colloidal solutions against the test microorganisms Escherichia coli, Staphylococcus aureus,Candida albicans, Bacillus subtilis, and Salmonella typhimurium. It was found that the silver doped TiO2 nanoparticles inhibited the growth and multiplication of the test microorganisms, including the fungus C. albicans. Antimicrobial activity was observed against all tested microorganisms at a very low concentration of 1. 125-2. 81 μg/ml of nano silver in 1-25 % Ag-TiO2 solutions.
KW - Ag doped TiO colloids
KW - Antimicrobial activity
KW - MIC value
KW - Nanoparticles
KW - Sol-gel
UR - http://www.scopus.com/inward/record.url?scp=84862327374&partnerID=8YFLogxK
U2 - 10.1007/s11274-012-1061-y
DO - 10.1007/s11274-012-1061-y
M3 - Article
C2 - 22806159
AN - SCOPUS:84862327374
SN - 0959-3993
VL - 28
SP - 2531
EP - 2539
JO - World Journal of Microbiology and Biotechnology
JF - World Journal of Microbiology and Biotechnology
IS - 7
ER -