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Chemcial Industry and Engineering 2017, Vol. 34 Issue (3) :18-23    DOI: 10.13353/j.issn.1004.9533.20151116
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Study on the Capacity of Calcium Alginate Sponge with or Without Silver Nanoparticles
Wang Kang, Hao Yanli
School of Chemical Engineering and Technology, Tianjin University, Tianjin 300072, China

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Abstract 

Porous calcium alginate (ALG-Ca) sponges with or without silver nanoparticles (AgNPs) were prepared by tailoring hydrogel to incorporate enough air and internal gelling method. The experiment result was as follows: ALG-Ca wet sponge was disposed by using absolute ethyl alcohol to accelerate the process of drying and remain the porous structure to achieve ALG-Ca desiccated sponge, then ALG-Ca sponge with excellent flexibility was obtained through impregnating ALG-Ca desiccated sponge into alcohol-glycerol aqueous solution. Moreover, ALG-Ca sponges were immerged into AgNO3 solution, then impregnated into alcohol-glycerol aqueous and dried at 80 ℃ to prepare AgNPs-loaded ALG-Ca sponges. The change of water solution including various alcohol and glycerol has an influence on the liquid absorption, liquid preservation and mechanical properties of Ca-ALG sponges. AgNPs-loaded ALG-Ca sponges showed good antibacterial capability against both Staphylococcus aureus and Escherichia coli.

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Wang Kang
Hao Yanli
Keywordsalginate;   sponges;   silver nanoparticles;   antibacterial capability     
Received 2015-11-17;
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Wang Kang, Hao Yanli.Study on the Capacity of Calcium Alginate Sponge with or Without Silver Nanoparticles[J]  Chemcial Industry and Engineering, 2017,V34(3): 18-23
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