Fabrication of PVA-Silver nanoparticle composite film for elimination of microbial contaminant from effluent

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dc.contributor.authorDutta, Ayantikaen_US
dc.contributor.authorDutta, Purbalien_US
dc.contributor.authorKayal, Tithien_US
dc.contributor.authorRay, Sayonien_US
dc.contributor.authorDutta, Muktaen_US
dc.contributor.authorGhosh, Krittikaen_US
dc.contributor.authorBiswas, Soumien_US
dc.contributor.authorSarkar, Swapnaneelen_US
dc.contributor.authorBera, Aparupaen_US
dc.contributor.authorSaha, Maharghyaen_US
dc.contributor.authorMandal, Kalyanashisen_US
dc.contributor.authorBhar, Anirbanen_US
dc.contributor.authorPaul, Samraten_US
dc.date.accessioned2023-08-09T06:02:02Z
dc.date.available2023-08-09T06:02:02Z
dc.date.issued2022-09
dc.description.abstractThe effluent contains many harmful microbes which should be eliminated before it is discharged into a water body. Silver nanoparticles (AgNPs) being high-quality significance and have a great impact on this research field as it inhibits microbial proliferation and infection. Therefore, it may use for Bioremediation purposes, our laboratory is fascinated by the production of polymer matrix entrapment silver nanoparticles for in situ bio-remediation purposes. The AgNPs was prepared from sawdust by decoction method. The yellowish solution turns into dark brown colour indicating the formation of AgNPs. A sharp SPR (Surface Plasmon Resonance) band formation in UV-vis spectroscopy scan establishes the formation and stability of silver nanoparticles in an aqueous solution. SEM microphotograph indicated roughly spheroidal structure with (63±3) nm average diameters of newly synthesized AgNp. Polyvinyl alcohol (PVA) is eco-friendly and non-toxic to the environment was chosen for the preparation of polymeric matrix. The non-toxic concentration (1 ?g/mL) of AgNp was dispersed into PVA solution followed by cross-linked with maleic acid. PVA- maleic acid is cross-linked by the formation of an ester bond, whereas silver nanoparticles physically entrap into the cross-linked matrix. The silver nanoparticles were released from the matrix nearly after 10 min of swelling of the composite film. In a microbial assay using E. coli agar medium, PVA-AgNp composite film shows the significant killing of microorganisms. Microbial elimination is measured indirectly by pH measurement and dissolved oxygen concentration measurement of the effluent in situ against RO- water, taken as control. The dissolved oxygen concentration from RO water and effluent water was measured on Day “0” followed by treatment and incubation at the BOD chamber. The treatment with PVA-AgNp composite film reduced the BOD Level and increase dissolved oxygen level simultaneously increasing the quality of water.en_US
dc.identifier.affiliationsDepartment of Biotechnologyen_US
dc.identifier.affiliationsDepartment of Chemistry, Brainware University, Barasat, Kolkata-700 125, West Bengal, Indiaen_US
dc.identifier.citationDutta Ayantika, Dutta Purbali, Kayal Tithi, Ray Sayoni, Dutta Mukta, Ghosh Krittika, Biswas Soumi, Sarkar Swapnaneel, Bera Aparupa, Saha Maharghya, Mandal Kalyanashis, Bhar Anirban, Paul Samrat. Fabrication of PVA-Silver nanoparticle composite film for elimination of microbial contaminant from effluent. Indian Journal of Biochemistry & Biophysics. 2022 Sept; 59(9): 936-939en_US
dc.identifier.issn0019-5189
dc.identifier.issn0975-1009
dc.identifier.placeIndiaen_US
dc.identifier.urihttps://imsear.searo.who.int/handle/123456789/221581
dc.languageenen_US
dc.publisherCSIR-NIScPRen_US
dc.relation.issuenumber9en_US
dc.relation.volume59en_US
dc.source.urihttps://doi.org/10.56042/ijbb.v59i9.63978en_US
dc.subjectBioremediationen_US
dc.subjectBOD, Dissolved Oxygenen_US
dc.subjectPVA-AgNp composite filmen_US
dc.subjectSilver nanoparticleen_US
dc.titleFabrication of PVA-Silver nanoparticle composite film for elimination of microbial contaminant from effluenten_US
dc.typeJournal Articleen_US
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