Synthesis and characterization of biogenic selenium nanoparticles with antimicrobial properties made byStaphylococcus aureus, methicillin-resistantStaphylococcus aureus(MRSA),Escherichia coli,andPseudomonas aeruginosa

2018 ◽  
Vol 106 (5) ◽  
pp. 1400-1412 ◽  
Author(s):  
David Medina Cruz ◽  
Gujie Mi ◽  
Thomas J. Webster
e-Polymers ◽  
2012 ◽  
Vol 12 (1) ◽  
Author(s):  
Florin Borcan ◽  
Constantin Bolcu ◽  
Nicoleta Filimon ◽  
Geza Bandur

AbstractIn this experimental research, thin polyurethane films containing reactive functional groups (hydroxyl and amino groups) were synthesized. The raw materials used in the synthesis are: a hydroxyl component (Elastoflex W5516/115) and an isocyanate component (semiprepolimer type) based on 4,4'- diphenylmethane-diisocyanate (MDI) or toluene-2,4-diisocyanate (TDI). Two different antibiotics were adsorbed on these films: amikacin and ceftazidime which formed physical bonds with the polyurethane matrix. The films were characterized by SEM, DMA and a culture of Escherichia coli and a counting room was used in order to determine the antimicrobial efficiency.


Polymer ◽  
2011 ◽  
Vol 52 (25) ◽  
pp. 5764-5771 ◽  
Author(s):  
Li Qun Xu ◽  
Chao Huang ◽  
Rong Wang ◽  
Koon-Gee Neoh ◽  
En-Tang Kang ◽  
...  

The Analyst ◽  
2020 ◽  
Vol 145 (4) ◽  
pp. 1457-1465 ◽  
Author(s):  
R. Álvarez-Fernández García ◽  
M. Corte-Rodríguez ◽  
M. Macke ◽  
K. L. LeBlanc ◽  
Z. Mester ◽  
...  

Complementary analytical strategies based on ICP-TQ-MS were used for the detection and characterization of selenium-containing nanoparticles in selenized yeast.


2018 ◽  
Vol 2018 ◽  
pp. 1-8
Author(s):  
Fangfang Cheng ◽  
Bingbing Wang ◽  
Yanzhi Xia

A novel amphipathic chitosan derivative, O-acetyl-chitosan acetic ester (ACHA), was synthesized by the reaction of chitosan with acetic acid in the presence of thionyl chloride. The physicochemical properties of ACHA were characterized by FTIR, 1H NMR, TGA, and XRD. The yield (Y) of ACHA was 79.4%, and the degree of acetylation (DA) of ACHA was 1.04. Compared to CS, ACHA could be dissolved in many organic solvents, deionized water, and aqueous solution. Our results showed that ACHA exhibited a superior antibacterial activity against Escherichia coli, Pseudomonas aeruginosa, and Staphylococcus aureus. These findings indicated that ACHA was preferable for use as antimicrobial agents in wound healing, food preservative, and tissue engineering.


ChemPhysChem ◽  
2019 ◽  
Vol 20 (5) ◽  
pp. 727-735 ◽  
Author(s):  
Tânia E. Sintra ◽  
Miguel Vilas ◽  
Margarida Martins ◽  
Sónia P. M. Ventura ◽  
Ana I. M. C. Lobo Ferreira ◽  
...  

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