Superior Antibacterial Activity of Zinc Oxide/Graphene Oxide Composites Originating from High Zinc Concentration Localized around Bacteria

2014 ◽  
Vol 6 (4) ◽  
pp. 2791-2798 ◽  
Author(s):  
Yan-Wen Wang ◽  
Aoneng Cao ◽  
Yu Jiang ◽  
Xin Zhang ◽  
Jia-Hui Liu ◽  
...  
Keyword(s):  
Zinc Oxide ◽  
Antibacterial Activity ◽  
Graphene Oxide ◽  
Zinc Concentration ◽  
High Zinc ◽  
High Zinc Concentration ◽  
Oxide Composites

Improved photodegradation performance of zinc oxide/carbon nanotubes/reduced graphene oxide composites

2019 ◽  
Vol 27 (8) ◽  
pp. 619-625 ◽  
Author(s):  
Yanzhen Huang ◽  
Xinling Hu ◽  
Yingjiang Qian ◽  
Shaofeng Huang ◽  
Dongxu Li
Keyword(s):  
Carbon Nanotubes ◽  
Zinc Oxide ◽  
Graphene Oxide ◽  
Reduced Graphene Oxide ◽  
Reduced Graphene ◽  
Oxide Composites

scholarly journals Graphene oxide decorated with zinc oxide nanoflower, silver and titanium dioxide nanoparticles: fabrication, characterization, DNA interaction, and antibacterial activity

RSC Advances ◽  
2019 ◽  
Vol 9 (7) ◽  
pp. 3704-3714 ◽  
Author(s):  
Nagi El-Shafai ◽  
Mohamed E. El-Khouly ◽  
Maged El-Kemary ◽  
Mohamed Ramadan ◽  
Ibrahim Eldesoukey ◽  
...  
Keyword(s):  
Zinc Oxide ◽  
Antibacterial Activity ◽  
Titanium Dioxide ◽  
Graphene Oxide ◽  
Titanium Dioxide Nanoparticles ◽  
Dna Interaction

The fabrication, characterization, and antibacterial activity of novel nanocomposites based on graphene oxide (GO) nanosheets decorated with silver, titanium dioxide nanoparticles, and zinc oxide nanoflowers were examined.

scholarly journals Antibacterial Property of Composites of Reduced Graphene Oxide with Nano-Silver and Zinc Oxide Nanoparticles Synthesized Using a Microwave-Assisted Approach

2019 ◽  
Vol 20 (21) ◽  
pp. 5394 ◽  
Author(s):  
Yi-Huang Hsueh ◽  
Chien-Te Hsieh ◽  
Shu-Ting Chiu ◽  
Ping-Han Tsai ◽  
Chia-Ying Liu ◽  
...  
Keyword(s):  
Zinc Oxide ◽  
Antibacterial Activity ◽  
Graphene Oxide ◽  
Reductase Activity ◽  
Chemical Reduction ◽  
Membrane Integrity ◽  
Zno Nps ◽  
Nano Silver ◽  
E Coli ◽  
Microwave Assisted

Graphene oxide (GO) composites with various metal nanoparticles (NPs) are attracting increasing interest owing to their broad scope in biomedical applications. Here, microwave-assisted chemical reduction was used to deposit nano-silver and zinc oxide NPs (Ag and ZnO NPs) on the surface of reduced GO (rGO) at the following weight percentages: 5.34% Ag/rGO, 7.49% Ag/rGO, 6.85% ZnO/rGO, 16.45% ZnO/rGO, 3.47/34.91% Ag/ZnO/rGO, and 7.08/15.28% Ag/ZnO/rGO. These materials were tested for antibacterial activity, and 3.47/34.91% Ag/ZnO/rGO and 7.08/15.28% Ag/ZnO/rGO exhibited better antibacterial activity than the other tested materials against the gram-negative bacterium Escherichia coli K12. At 1000 ppm, both these Ag/ZnO/rGO composites had better killing properties against both E. coli K12 and the gram-positive bacterium Staphylococcus aureus SA113 than Ag/rGO and ZnO/rGO did. RedoxSensor flow cytometry showed that 3.47/34.91% Ag/ZnO/rGO and 7.08/15.28% Ag/ZnO/rGO decreased reductase activity and affected membrane integrity in the bacteria. At 100 ppm, these two composites affected membrane integrity more in E. coli, while 7.08/15.28% Ag/ZnO/rGO considerably decreased reductase activity in S. aureus. Thus, the 3.47/34.91% and 7.08%/15.28% Ag/ZnO/rGO nanocomposites can be applied not only as antibacterial agents but also in a variety of biomedical materials such as sensors, photothermal therapy, drug delivery, and catalysis, in the future.

scholarly journals High Zinc Concentration in Common Carp Viscera

1974 ◽  
Vol 40 (5) ◽  
pp. 509-509 ◽  
Author(s):  
Sen Shyong JENG ◽  
Hsiu Wan Lo
Keyword(s):  
Common Carp ◽  
Zinc Concentration ◽  
High Zinc ◽  
High Zinc Concentration
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