Enzymatically attenuated in situ release of silver ions to combat bacterial biofilms: a feasibility study

2008 ◽  
Vol 18 (1) ◽  
pp. 25-29 ◽  
Author(s):  
H. Ben-Yoav ◽  
A. Freeman
Keyword(s):  
Feasibility Study ◽  
Silver Ions ◽  
Bacterial Biofilms

scholarly journals Feasibility Study of Transparency Estimation in Lake Nakaumi by SGLI using in-situ Spectral Reflectance Data

2009 ◽  
Vol 65 (1) ◽  
pp. 1046-1050
Author(s):  
Yuji SAKUNO ◽  
Yasushi MIYAMOTO ◽  
Toshiaki KOZU ◽  
Toyoshi SHIMOMAI ◽  
Tsuneo MATSUNAGA ◽  
...  
Keyword(s):  
Feasibility Study ◽  
Spectral Reflectance ◽  
Lake Nakaumi ◽  
Reflectance Data

Silver Ions Release from Antibacterial Chitosan Films Containing in Situ Generated Silver Nanoparticles

2012 ◽  
Vol 61 (1) ◽  
pp. 260-267 ◽  
Author(s):  
Gracia López-Carballo ◽  
Laura Higueras ◽  
Rafael Gavara ◽  
Pilar Hernández-Muñoz
Keyword(s):  
Silver Nanoparticles ◽  
Silver Ions ◽  
Chitosan Films

Formation and dispersal of bacterial biofilms in vivo and in situ

1993 ◽  
Vol 74 ◽  
pp. 67S-78S ◽  
Author(s):  
P. Gilbert ◽  
D.J. Evans ◽  
M.R.W. Brown
Keyword(s):  
Bacterial Biofilms

scholarly journals Enhanced Antibacterial Activity of Silver Doped Titanium Dioxide-Chitosan Composites under Visible Light

Materials ◽  
2018 ◽  
Vol 11 (8) ◽  
pp. 1403 ◽  
Author(s):  
Jie Li ◽  
Bing Xie ◽  
Kai Xia ◽  
Yingchun Li ◽  
Jing Han ◽  
...  
Keyword(s):  
Particle Size ◽  
Antibacterial Activity ◽  
Titanium Dioxide ◽  
Visible Light ◽  
Silver Ions ◽  
Antibacterial Activities ◽  
Nano Tio2 ◽  
Inverse Emulsion ◽  
Potential Applications

Nano titanium dioxide (TiO2) with photocatalytic activity was firstly modified by diethanolamine, and it was then doped with broad spectrum antibacterial silver (Ag) by in situ method. Further, both Ag doped TiO2-chitosan (STC) and TiO2-chitosan (TC) composites were prepared by the inverse emulsion cross-linking reaction. The antibacterial activities of STC composites were studied and their antibacterial mechanisms under visible light were investigated. The results show that in situ doping and inverse emulsion method led to good dispersion of Ag and TiO2 nanoparticles on the cross-linked chitosan microsphere. The STC with regular particle size of 1–10 μm exhibited excellent antibacterial activity against E. coli, P. aeruginosa and S. aureus under visible light. It is believed that STC with particle size of 1–10 μm has large specific surface area to contact with bacterial cell wall. The increased antibacterial activity was attributed to the enhancement of both electron-hole separations at the surface of nano-TiO2 by the silver ions under the visible light, and the synergetic and sustained release of strong oxidizing hydroxyl radicals of nano-TiO2, together with silver ions against bacteria. Thus, STC composites have great potential applications as antibacterial agents in the water treatment field.

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