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Title: Development of antimicrobial cotton fabric using vitex negundo coleus amboinicus and gloriosa superba
Researcher: Gobalakrishnan M
Guide(s): Saravanan D
Keywords: Engineering and Technology
Engineering Chemical
Cotton fabrics
University: Anna University
Completed Date: 2019
Abstract: Cotton, the most dominant natural fibre used in apparels due to its newlinecomfort properties. Cotton is easily attacked by microbes and cause problems newlineincluding skin diseases, unpleasant odours, colour stains, colour fading, newlinestrength loss, clammy feel, cross infections and discomfort to the wearers. newlineAntimicrobial agents are applied on cotton fabrics to avoid the newlineproliferation of microbes. Various synthetic antimicrobial agents are applied newlineto cotton and its blends. But these synthetic antimicrobial agents many a time newlineare not environmentally safe.Various natural medicinal herbs have proven antimicrobial newlineproperties, but these natural sources have very limited wash durability in newlinedirect methods of applications.In this work, the medicinal plants, Vitex negundo, Coleus newlineamboinicus, Gloriosa superba, Cyperus rotundus, Pithecellobium dulce, newlineAcalypha indica and Clitoria ternatea were used to study the antimicrobial newlineactivities in terms of zone inhibition, bacterial reduction percentage. Out of newlineseven medicinal herbal sources, three herbal sources Vitex negundo, Coleus newlineamboinicus and Gloriosa superba were found suitable for antimicrobial newlineactivities.Four different solvents, methanol, ethanol, benzene and aqueous newlinesolution were used to extract the active ingredients from the herbal sources to newlinestudy the effect of antimicrobial activities against four microbes, S.simulans, newlineS.xylosus, B.subtilis, and S.epidermidis. The methanolic extracts showed good newlineantimicrobial activity against all the four microbes.The selected herbals, Vitex negundo, Coleus amboinicus and newlineGloriosa superba were extracted and the extracts were encapsulated newline(microencapsules and nanoencapsules) by coacervation method. The particle newlinesizes of the nanoencapsules were in the range of 120-200 nm.The herbal extracts were applied on 100% cotton plain woven fabrics by exhaust, microencapsulation and nanoencapsulation methods newline newline
Pagination: xxv i, 160p.
Appears in Departments:Faculty of Technology

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02_certificates.pdf969.02 kBAdobe PDFView/Open
03_abstracts.pdf15.21 kBAdobe PDFView/Open
04_acknowledgements.pdf13.11 kBAdobe PDFView/Open
05_contents.pdf41.24 kBAdobe PDFView/Open
06_listofabbreviations.pdf8.84 kBAdobe PDFView/Open
07_chapter1.pdf92.93 kBAdobe PDFView/Open
08_chapter2.pdf1.59 MBAdobe PDFView/Open
09_chapter3.pdf255.82 kBAdobe PDFView/Open
10_chapter4.pdf222.33 kBAdobe PDFView/Open
11_chapter5.pdf1.67 MBAdobe PDFView/Open
12_chapter6.pdf1.43 MBAdobe PDFView/Open
13_chapter7.pdf1.19 MBAdobe PDFView/Open
15_references.pdf446.38 kBAdobe PDFView/Open
16_listofpublications.pdf22.16 kBAdobe PDFView/Open
80_recommendation.pdf115.61 kBAdobe PDFView/Open

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