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Novel biocide based on cationic derivative of psyllium: surface modification and antibacterial activity

dc.contributor.authorPal, Pinki
dc.contributor.authorBanerjee, Aparna
dc.contributor.authorSoren, Karuna
dc.contributor.authorChakraborty, Priyanka
dc.contributor.authorPandey, Jay P.
dc.contributor.authorSen, Gautam
dc.contributor.authorBandopadhyay, Rajib
dc.date.accessioned2023-03-21T20:10:11Z
dc.date.available2023-03-21T20:10:11Z
dc.date.issued2019
dc.identifier.urihttp://repositorio.ucm.cl/handle/ucm/4535
dc.description.abstractTo circumvent the problems (such as volatilization, photolytic decomposition, chemical instability, easy permeability through the skin) associated with low molecular weight antimicrobial agents, our strategy employed graft copolymerization of cationic monomer with the polymeric substrate viz. psyllium husk. The surface graft concentration of quaternary ammonium ion on psyllium was optimized by measuring the extent of grafting in the microwave-induced process. The surface modification of graft copolymers was evident by different physico–chemical techniques like 13C nuclear magnetic resonance (NMR), Fourier-transform infrared spectroscopy (FTIR), scanning electron microscope (SEM), X-ray diffractometer (XRD), differential scanning calorimetry (DSC), Thermo gravimeteric analysis (TGA), and viscometric study. The synthesized water soluble product resulted good antibacterial activity against Gram positive Staphylococcus aureus and Bacillus anthracis but failed to produce any antibacterial activity against Gram negative Salmonella typhi and Escherichia coli. The reason to failure has been explained on the basis of differences in the electrokinetic property between Gram-positive and Gram-negative bacteria. Optimum minimum inhibitory concentration (MIC) for the polymeric grade which showed good biocidal effect evaluated by both zone of inhibition and absorbance is found at 1000 µg/ml.es_CL
dc.language.isoenes_CL
dc.rightsAtribución-NoComercial-SinDerivadas 3.0 Chile*
dc.rights.urihttp://creativecommons.org/licenses/by-nc-nd/3.0/cl/*
dc.sourceJournal of Polymers and the Environment, 27, 1178-1190es_CL
dc.subjectDADMACes_CL
dc.subjectCationic graft copolymeres_CL
dc.subjectBiocidees_CL
dc.subjectMinimum inhibitory concentrationes_CL
dc.titleNovel biocide based on cationic derivative of psyllium: surface modification and antibacterial activityes_CL
dc.typeArticlees_CL
dc.ucm.facultadFacultad de Ciencias Agrarias y Forestaleses_CL
dc.ucm.indexacionScopuses_CL
dc.ucm.indexacionIsies_CL
dc.ucm.urisibib2.ucm.cl:2048/login?url=https://link.springer.com/article/10.1007/s10924-019-01419-wes_CL
dc.ucm.doidoi.org/10.1007/s10924-019-01419-wes_CL


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Atribución-NoComercial-SinDerivadas 3.0 Chile
Excepto si se señala otra cosa, la licencia de la publicación se describe como Atribución-NoComercial-SinDerivadas 3.0 Chile