Related Experiment Video
Updated: May 20, 2026

Microwave-assisted Functionalization of Polyethylene glycol and On-resin Peptides for Use in Chain Polymerizations and Hydrogel Formation
Published on: October 29, 2013
Study on the preparation, characterization, and antibacterial properties of keggin POMs functionalized carrageenan
Anxing Wang1,2, Mengqi Wang1,2, Yu Zhang1,2
1Collaborative Innovation Center for Chemistry and Life Sciences, Anhui University of Applied Technology, Hefei, 230011, China.
Abstract:
A composite antimicrobial film (Carrageenan/Polyoxometalate, Carr/POM) was prepared by doping Keggin-type polyoxometalate Na3PW12O40 into carrageenan using the casting method. The mechanical properties, thermal stability, surface morphology, structure, antimicrobial activity and biodegradability of the films were systematically investigated. The results showed that the incorporation of Na3PW12O40 enhanced the water resistance of the carrageenan film and significantly impacted the surface morphology and crystal structure of the film. In antibacterial tests, the Carr/POM film exhibited strong bactericidal activity against Staphylococcus aureus(S.aureus), with the Carr/POM-4 film demonstrating the strongest inhibitory effect, corresponding to an inhibition zone diameter of 10.58 mm.In addition, the Carr/POM films showed excellent biodegradability, with complete decomposition occurring in soil within approximately one week.These findings suggest that the prepared films possess excellent antimicrobial properties against foodborne pathogenic microorganisms, making them promising candidates for further application in the field of food packaging.
Related Concept Videos
Special Staining Techniques
Peptidoglycan Synthesis
Inhibitors of Gram-positive Cell Wall Synthesis

