Water-soluble cationic chitosan derivative to improve pigment-based inkjet printing and antibacterial properties for cellulose substrates

2012 ◽  
Vol 125 (3) ◽  
pp. 1674-1680 ◽  
Author(s):  
Guangjiu Bu ◽  
Chaoxia Wang ◽  
Shaohai Fu ◽  
Anli Tian
Keyword(s):  
Inkjet Printing ◽  
Antibacterial Properties ◽  
Water Soluble ◽  
Chitosan Derivative ◽  
Cellulose Substrates

Comparative Evaluation of the Sterilization Effect of Six Kinds of Commercial Disinfectants against Four Pathogenic Bacteria

2021 ◽  
Author(s):  
Wenxia Wang ◽  
Xiaoting Liang ◽  
Junxia Zheng ◽  
Qi He
Keyword(s):  
Sodium Hypochlorite ◽  
Peracetic Acid ◽  
Pathogenic Bacteria ◽  
Antibacterial Effect ◽  
Antibacterial Properties ◽  
Water Soluble ◽  
Absolute Ethanol ◽  
Dilution Method ◽  
Clostridium Sporogenes ◽  
Sterilization Effect

Abstract In this work, we systematically investigate the sterilization effect of six kinds of commonly used commercial disinfectants, including the DuPont Virkon disinfectant, peracetic acid disinfectant, sodium hypochlorite, bromogeramine disinfectant, water-soluble allicin, and absolute ethanol, against the Escherichia coli, Staphylococcus aureus, Monilia albican and Clostridium sporogenes. The inhibition zone was used to qualitatively determine the antibacterial effects of the six disinfectants, and then the minimum two-fold dilution method was used to quantitatively determine the minimum inhibitory concentration and minimum bactericidal concentration of the six disinfectants on the four pathogens. The result illustrated that the antibacterial effect of peracetic acid disinfectant is the best, and clostridium sporogenes is the most sensitive to it, followed by bromogermine disinfectant, which can inhibit the four pathogenic bacteria at the concentration recommended by the manufacturer. The antibacterial effect of DuPont Virkon disinfectant, sodium hypochlorite, water-soluble allicin and absolute ethanol is not as good as expected, and cannot inhibit the four kinds of pathogenic bacteria at the recommended concentration. In summary, the antibacterial effect of peracetic acid disinfectant is the strongest, followed by the bromogermine disinfectant, DuPont Virkon disinfectant, sodium hypochlorite and water-soluble allicin. The absolute ethanol exhibits the worst antibacterial properties.

Study on the Antibacterial Performance of the Antibacterial Shutter Blades

2013 ◽  
Vol 815 ◽  
pp. 333-338
Author(s):  
Ming Li Liu ◽  
Chun Feng Li ◽  
Yun Long Wang ◽  
Kai Lu ◽  
Jiu Yin Pang ◽  
...  
Keyword(s):  
Antibacterial Agent ◽  
Antibacterial Agents ◽  
Drug Loading ◽  
Antibacterial Properties ◽  
Water Soluble ◽  
Single Factor ◽  
Antibacterial Performance ◽  
Loading Amount ◽  
Single Factor Experiment ◽  
Impregnation Solution

This study used Ag-embedded nanoTiO2, xylan and water-soluble Chitosan as antibacterial agents, respectively prepared shutter blades through the treating solution of the different concentration and the different drug loading amount of the poplar veneer. Through a single factor experiment, this paper analyzes that the different antibacterial agent, concentration of antibacterial agent and the drug loading amount have an effect on the antibacterial properties of the shutter blades. The results show that the order of antibacterial performance of the shutter blades impregnated antibacterial agents is the Ag-embedded nanoTiO2, Chitosan, Xylan. Comprehensiv-ely thought the antibacterial properties and economic index, the optimal concentration of the Ag-embedded nanoTiO2 impregnation solution is 1%.

scholarly journals Selective chelating precipitation of palladium metal from electroplating wastewater using chitosan and its derivative

2020 ◽  
Vol 38 (3-4) ◽  
pp. 113-126
Author(s):  
Qiaoling Xie ◽  
Gaojie Liang ◽  
Tao Lin ◽  
Fuming Chen ◽  
Dandan Wang ◽  
...  
Keyword(s):  
Fourier Transform ◽  
Photoelectron Spectroscopy ◽  
Water Soluble ◽  
Optimum Conditions ◽  
Chitosan Derivative ◽  
Aqua Regia ◽  
Electroplating Wastewater ◽  
X Ray ◽  
Approach Method ◽  
Palladium Metal

A study on selective chelating precipitation of palladium metal from real electroplating wastewater using chitosan and its water-soluble derivative was conducted. The pH parameter, the concentrations of chitosan and its water-soluble derivative and the chelating precipitation time were experimentally investigated, and the optimum conditions were determined. The results revealed that both chitosan and its water-soluble derivative acted as chelating precipitation agents. Rapid chelating precipitation occurred when chitosan was added to real electroplating wastewater containing the chitosan derivative, thereby improving removal efficiency of palladium in different forms up to 95% under the optimum condition of 0.2 g/L chitosan and 0.16 mg/L derivative at pH 2.5. Then, dissolution experiments showed that chelating precipitation products could be dissolved in aqua regia. Additionally, selective chelating precipitation of palladium by chitosan and its derivative was characterized using X-ray photoelectron spectroscopy and Fourier transform infrared spectroscopy. Thus, it can be concluded that the combined utilization of chitosan and its water-soluble derivative is a promising approach method for the removal of different forms of palladium from real electroplating wastewater.

Synthesis of N-[(3'-Hydroxy-2',3'-dicarboxy)- ethyl]chitosan:A New, Water-Soluble Chitosan Derivative

1995 ◽  
Vol 28 (26) ◽  
pp. 8865-8867 ◽  
Author(s):  
James V. Gruber ◽  
Venceslav Rutar ◽  
Jagdeesh Bandekar ◽  
Peter N. Konish
Keyword(s):  
Water Soluble ◽  
Chitosan Derivative

Green and facile synthesis of water-soluble ZnS quantum dots nanohybrids using chitosan derivative ligands

2014 ◽  
Vol 16 (7) ◽  
Author(s):  
Fábio P. Ramanery ◽  
Alexandra A. P. Mansur ◽  
Fernanda G. L. M. Borsagli ◽  
Herman S. Mansur
Keyword(s):  
Quantum Dots ◽  
Water Soluble ◽  
Chitosan Derivative ◽  
Facile Synthesis

Preparation and characterization of water-soluble chitosan derivative by Michael addition reaction

2010 ◽  
Vol 47 (5) ◽  
pp. 696-699 ◽  
Author(s):  
Mingyan Jiang ◽  
Kemin Wang ◽  
John F. Kennedy ◽  
Jun Nie ◽  
Qiang Yu ◽  
...  
Keyword(s):  
Michael Addition ◽  
Addition Reaction ◽  
Water Soluble ◽  
Michael Addition Reaction ◽  
Chitosan Derivative

scholarly journals Development of a quaternized chitosan with enhanced antibacterial efficacy

2013 ◽  
Vol 11 (3) ◽  
pp. 410-418 ◽  
Author(s):  
Gurpreet Kaur Khaira ◽  
Rashmi Kumariya ◽  
Manmohan Chibber ◽  
Moushumi Ghosh
Keyword(s):  
Water Soluble ◽  
Ammonium Compound ◽  
Escherichia Coli O157 ◽  
Waterborne Pathogens ◽  
Chitosan Derivative ◽  
Quaternized Chitosan ◽  
Short Contact Time ◽  
Ldh Activity ◽  
Low Dosage ◽  
Cell Supernatant

The antibacterial activity of a water-soluble chitosan derivative prepared by chemical modification to quaternary ammonium compound N,N,N-trimethylchitosan (TC) was investigated against four selected waterborne pathogens: Aeromonas hydrophila ATCC 35654, Yersinia enterocolitica ATCC 9610, Listeria monocytogenes ATCC 19111 and Escherichia coli O157:H7 ATCC 32150. An inactivation of 4 log CFU/ml of all waterborne pathogens was noted for the quaternized chitosan as compared with chitosan over a short contact time (30 min) and low dosage (4.5 ppm) at ambient temperature. A marked increase in glucose level, protein content and lactate dehydrogenase (LDH) activity was observed concurrently in the cell supernatant to be a major bactericidal mechanism. The results suggest that the TC derivative may be a promising commercial substitute for acid-soluble chitosan for rapid and effective disinfection of water.

scholarly journals Properties of Cotton Fabric Modified with a Chitosan Quaternary Ammonium Salt Nanoparticle

2018 ◽  
Vol 26 (4(130)) ◽  
pp. 116-121 ◽  
Author(s):  
Wei Zhang ◽  
Xinlan Dai ◽  
Jinjie Zhou
Keyword(s):  
Cotton Fabric ◽  
Ammonium Salt ◽  
Quaternary Ammonium ◽  
Quaternary Ammonium Salt ◽  
Cellulose Fibre ◽  
Water Soluble ◽  
Chitosan Derivative ◽  
Covalent Bonds ◽  
Wrinkle Resistance ◽  
Alkaline Conditions

In this study, a novel fibre-reactive nanoparticle was synthesised in three steps. First a water-soluble chitosan derivative, N-[(2-hydroxy-3-trimethylammonium)propyl] chitosan chloride (short for HTCC), was prepared by reacting chitosan with 2,3-epoxypropyltrimethylammonium chloride. Second the HTCC was further modified by reacting it with N-(hydroxymethyl)- acrylamide to prepare a fibre-reactive chitosan derivative, O-methyl acrylamide quaternary ammonium salt of chitosan (short for NMA-HTCC), which can form covalent bonds with cellulose fibre under alkaline conditions. Thirdly NMA-HTCC nanoparticles were prepared by the ionotropic gelation reaction method. The particle size and TEM researches indicated that the globular NMA-HTCC nanoparticle with a size distribution of 15 - 50 nm was successfully prepared and presented good dispersity and stability. Then the NMA-HTCC nanoparticle was used for the textile finishing of cotton fabric. The modified cotton fabric demonstrated excellent durable wrinkle-resistance and antibacterial activity against Staphylococcus aureus and Escherichia coli, even after 50 repeated launderings. Moreover the shrinkage-resistance of the modified cotton fabric was distinctly improved, and the contact angle was slightly larger, while the whiteness and mechanical properties had not changed in an obvious way.

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