The Comparative Study of Two Kinds of Nano-Antimicrobials’ Antibacterial Properties

2011 ◽  
Vol 236-238 ◽  
pp. 1824-1827
Author(s):  
Shao Juan Chen ◽  
Zai Li Wang
Keyword(s):  
Staphylococcus Aureus ◽  
Titanium Dioxide ◽  
Candida Albicans ◽  
Quantitative Analysis ◽  
Comparative Study ◽  
Mechanism Of Action ◽  
Inhibitory Concentration ◽  
Antibacterial Properties ◽  
The Comparative Study ◽  
Nano Titanium Dioxide

The thesis selected nano-titanium dioxide compound silver antibacterial and thulium compound nanometer antibacterial as research object, whose application are the widest. Their characters to resist staphylococcus aureus, colon bacillus and Candida albicans were studied by qualitative analysis, quantitative analysis and TEM. The study indicated that nano-titanium dioxide compound silver antibacterial is dissolving antibacterial and thulium compound nanometer antibacterial is non-dissolving antibacterial. These two kinds of antimicrobials both have a minimal inhibitory concentration of the three kinds of bacteria. Different nano-antimicrobials act on bacteria, the changes of bacteria’s shape are different, and this indicates the mechanism of action is different.

A comparative study on the efficacy of different probes to predict the photo-activity of nano-titanium dioxide toward biomolecules

RSC Advances ◽  
2015 ◽  
Vol 5 (109) ◽  
pp. 89559-89568 ◽  
Author(s):  
A. Marucco ◽  
E. Carella ◽  
I. Fenoglio
Keyword(s):  
Titanium Dioxide ◽  
Comparative Study ◽  
Systematic Study ◽  
Living Organisms ◽  
Nano Titanium Dioxide

A systematic study has been performed to select cell-free tests able to predict the photo-activity of nano-TiO2 in living organisms.

scholarly journals A CORPUS-BASED QUANTITATIVE ANALYSIS OF SEVEN ENGLISH VERSIONS OF "SHU DAO NAN" CONCERNING THE HARMONY-GUIDED THREE-LEVEL POETRY TRANSLATION CRITERIA

2020 ◽  
Vol 5 (4) ◽  
Author(s):  
Ying Ting ◽  
Wang Feng
Keyword(s):  
Quantitative Analysis ◽  
Comparative Study ◽  
Quantitative Study ◽  
Poetry Translation ◽  
The Comparative Study

<p>This paper makes a comparative study of seven English versions of "<em>Shu Dao Nan</em>" at the lexical, syntactic and textual levels. It carries out an objective quantitative study on the theory, Harmony-Guided Three-Level Poetry Translation Criteria -- "Harmony-Resemblance in Style, Sense and Poetic Conception-Eight Beauties" criteria, to reveal the styles of different translated versions and to provide reference and inspiration for the comparative study of poetry translation.</p><p> </p><p><strong> Article visualizations:</strong></p><p><img src="/-counters-/edu_01/0629/a.php" alt="Hit counter" /></p>

Antimicrobial Activity of N,N'-bis(decylmethyl)- α,ω-alkanediamine Dioxides [1]

1983 ◽  
Vol 38 (1-2) ◽  
pp. 151-152 ◽  
Author(s):  
Ferdinand Devínsky ◽  
Ivan Lacko ◽  
Ludovít Krasnec ◽  
Dušan Mlynarčík
Keyword(s):  
Escherichia Coli ◽  
Staphylococcus Aureus ◽  
Antimicrobial Activity ◽  
Candida Albicans ◽  
Minimal Inhibitory Concentration ◽  
Inhibitory Concentration

Antimicrobial activity of N,N′-bis(decylmethyl)-α,ω-alkanediamine dioxides determined on Staphylococcus aureus, Escherichia coli, and Candida albicans is presented as minimal inhibitory concentration (MIC). The effect of the length of linking alkylene chain on this activity has been followed.

scholarly journals Preparation of Nanocomposite Alginate Fibers Modified with Titanium Dioxide and Zinc Oxide

Polymers ◽  
2020 ◽  
Vol 12 (5) ◽  
pp. 1040
Author(s):  
Dominik Borkowski ◽  
Izabella Krucińska ◽  
Zbigniew Draczyński
Keyword(s):  
Zinc Oxide ◽  
Titanium Dioxide ◽  
Antibacterial Properties ◽  
Natural Polymers ◽  
Nano Zinc Oxide ◽  
Nano Additives ◽  
Alginate Fibers ◽  
Nano Zinc ◽  
Nano Titanium Dioxide ◽  
Selection Of

Active dressings based on natural polymers are becoming increasingly popular on the market. One of such polymers is alginate, which is characterized by biodegradability, resorbability, has no carcinogenic properties, does not have allergenic or hemostatic properties, and has a confirmed lack of toxicity. However, this polymer does not show biocidal and biostatic properties, therefore the purpose of this research was to select the appropriate conditions for the production of calcium alginate fibers modified with nano titanium dioxide and nano zinc oxide. It was assumed that the presence of nano metal oxide fillers will give antibacterial properties to formed fibers, which were used to form nonwovens. The following article presents a comparative analysis of nonwovens made of alginate fibers, without nano additives, with nonwovens made of alginate fibers containing in their structure 7% titanium dioxide and nonwovens made of alginate fibers containing 2% ZnO. The selection of the nano additive content was determined by the spinning ability of the developed polymer solutions. Based on the results contained in the article, it was found that the introduction of modifiers in the structure of fibers increases the diameter of the fiber pores, which improves the sorption and retention properties of the obtained fibers, and also gives differentiated antibacterial properties to the obtained nonwovens depending on the type of nano additive used. Greater activity against Escherichia coli, Staphylococcus aureus strains and Aspergillus Niger molds was shown in nonwovens made of 2% ZnO modified fibers compared to nonwovens made from TiO2 modified fibers.

Functionally Modified Zeolite Powders for Delivering Antibacterial Performance to Cellulosic Paper

2019 ◽  
Vol 807 ◽  
pp. 141-150
Author(s):  
Lin Yuan ◽  
Xue Ren Qian
Keyword(s):  
Escherichia Coli ◽  
Staphylococcus Aureus ◽  
Candida Albicans ◽  
Sodium Chloride ◽  
Minimum Inhibitory Concentration ◽  
Aspergillus Niger ◽  
Hydrochloric Acid ◽  
Inhibitory Concentration ◽  
Antibacterial Performance ◽  
Cellulosic Paper

Zeolite powders were first treated with hydrochloric acid, then reacted with sodium chloride, and sodium zeolite (Na-Zeolite) powders were obtained. Further Antibacterial zeolite powders were prepared by loading metal ions such as, Ag+ and Zn2+, Ag+ and Cu2+, Zn2+and Cu2+, Ag+ and Cu2+and Zn2+, through ion exchange. The powders were characterized by minimum Inhibitory concentration (MIC), SEM/EDXA and XRD. Antibacterial paper with antibacterial zeolite powders as filler was fabricated. The results demonstrated that MIC of loading (Ag++Zn2+) zeolite was 125ppm against Staphylococcus aureus and Escherichia coli . MIC of loading (Ag++Cu2++Zn2+) zeolite was 62.5ppm against Candida albicans and Aspergillus Niger. By adding 6% of (Ag++Zn2+), (Ag++Cu2+), and (Ag++Cu2++Zn2+) antibacterial zeolite powders, respectively, antibacterial paper were prepared; and the antibacterial rate of these papers against Staphylococcus aureus, Escherichia coli, Candida albicans and Aspergillus Niger for 4h is close to 100%.

Improvement of polypropylene nonwoven fabric antibacterial properties by the direct fluorination

RSC Advances ◽  
2015 ◽  
Vol 5 (55) ◽  
pp. 44545-44549 ◽  
Author(s):  
N. P. Prorokova ◽  
V. A. Istratkin ◽  
T. Yu. Kumeeva ◽  
S. Yu. Vavilova ◽  
A. P. Kharitonov ◽  
...  
Keyword(s):  
Escherichia Coli ◽  
Staphylococcus Aureus ◽  
Candida Albicans ◽  
Antibacterial Properties ◽  
Nonwoven Fabric ◽  
Direct Fluorination

Fluorination of polypropylene nonwoven fabric totally suppresses Staphylococcus aureus and Candida albicans microfungus reproduction and partially – Escherichia coli reproduction.

scholarly journals Comparative Study of Phenolic Compound Antioxidant and Antimicrobial Activities of Fruits Peel and Cladodes from Tunisian Opuntia Stricta

2021 ◽  
Vol 7 (5) ◽  
pp. 1-7
Author(s):  
Lazhar Zourgui ◽  
Keyword(s):  
Staphylococcus Aureus ◽  
Minimum Inhibitory Concentration ◽  
Comparative Study ◽  
Fusarium Oxysporum ◽  
Inhibitory Concentration ◽  
Minimum Bactericidal Concentration ◽  
Antimicrobial Activities ◽  
Bacterial Strains ◽  
Inhibition Zones ◽  
Antioxidant And Antimicrobial Activities

Similarly, the bacterial strains tested were most sensitive to fruit peels than especially against Staphylococcus aureus with inhibition zones (DIZ), minimum inhibitory concentration (MIC) and minimum bactericidal concentration (MBC) values of 15.22±2.14 mm, 4.68 mg/mL and 37.5 mg/mL respectively. However, aqueous extract of cladodes have high antifongical activity particularly against Fusarium oxysporum with DIZ (20±0.2 mm), MIC (4.68mg/mL) and MFC (75 mg/mL) value

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