Structural features and antimicrobial activity of hydrogels obtained by the sol–gel method from silicon, zinc, and boron glycerolates

2020 ◽  
Vol 95 (3) ◽  
pp. 682-692
Author(s):  
Tat’yana G. Khonina ◽  
Nikolay V. Kungurov ◽  
Natal’ya V. Zilberberg ◽  
Natal’ya P. Evstigneeva ◽  
Muza М. Kokhan ◽  
...  
2018 ◽  
Vol 89 (1) ◽  
pp. 284-294 ◽  
Author(s):  
M. Soria-Castro ◽  
S. C. De la Rosa-García ◽  
P. Quintana ◽  
S. Gómez-Cornelio ◽  
A. Sierra-Fernandez ◽  
...  

2012 ◽  
Vol 66 (4) ◽  
Author(s):  
Renata Rychtáriková ◽  
Stanislav Šabata ◽  
Jiří Hetflejš ◽  
Gabriela Kuncová

AbstractMesoporous organosilica-porphyrin composites were obtained by entrapment of 5,10,15,20-tetraphenylporphyrin (TPP) and 5,10,15,20-tetrakis(1-methyl-4-pyridinio)porphyrin (TMPyP) into three polysilsesquioxanes prepared by the sol-gel method from 1,2-bis(triethoxysilyl)ethane, 1,6-bis(triethoxysilyl)hexane, and 1,8-bis(triethoxysilyl)octane. The materials were characterised by their texture and optical properties (fluorescence and absorbance) and by light-induced antimicrobial activity against E. coli BL21(DE3) (pET16bDsRed) strain.


2014 ◽  
Vol 2014 ◽  
pp. 1-8 ◽  
Author(s):  
Simona Liliana Iconaru ◽  
Patrick Chapon ◽  
Philippe Le Coustumer ◽  
Daniela Predoi

In this work, the preparation and characterization of silver doped hydroxyapatite thin films were reported and their antimicrobial activity was characterized. Silver doped hydroxyapatite (Ag:HAp) thin films coatings substrate was prepared on commercially pure Si disks by sol-gel method. The silver doped hydroxyapatite thin films were characterized by various techniques such as Scanning electron microscopy (SEM) with energy Dispersive X-ray attachment (X-EDS), Fourier transform infrared spectroscopy (FT-IR), and glow discharge optical emission spectroscopy (GDOES). These techniques have permitted the structural and chemical characterisation of the silver doped hydroxyapatite thin films. The antimicrobial effect of the Ag:HAp thin films onEscherichia coliandStaphylococcus aureusbacteria was then investigated. This is the first study on the antimicrobial effect of Ag:HAp thin films obtained by sol-gel method. The results of this study have shown that the Ag:HAp thin films withxAg=0.5are effective againstE. coliandS. aureusafter 24 h.


2019 ◽  
Vol 4 (2) ◽  
pp. 51-54
Author(s):  
Mamta Sharma ◽  
S.S. Tomar

In this paper, we report the synthesis of a highly photocatalytic titanium dioxide nanoparticles bondedwith azobenzene and cotton by simple sol-gel method. The synthesized azobenzene based titania nanoparticles coated cotton fibers were characterized using UV-visible and SEM and reported their antimicrobial activity. It was observed that the presence of titanium dioxide bonded with azobenzene effectively prevents both the cotton fibers from getting contaminated.


2010 ◽  
Vol 51 (2) ◽  
pp. 322-326 ◽  
Author(s):  
K. I. Shefer ◽  
D. A. Yatsenko ◽  
S. V. Tsybulya ◽  
É. M. Moroz ◽  
E. Yu. Gerasimov

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