Modification of polyethersulfone incorporated with polyvinylpyrrolidone - iodine via phase inversion and ultraviolet photo grafting for antibacterial applications

Modification of polyethersulfone incorporated with polyvinylpyrrolidone - iodine via phase inversion and ultraviolet photo grafting for antibacterial applications

Incorporation of antibacterial agents into polymeric membrane is one the widely studied surface modification. Polyethersulfone (PES) membrane incorporated with polyvinylpyrrolidone-iodine (PVP-I) were prepared using phase inversion and UV induced photo-grafting techniques. The modified PES-PVP-I mem...

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Main Author: Devanai, Kannan
Format: Thesis
Language:English
Published: 2012
Subjects:
TP Chemical technology
Online Access:http://eprints.utm.my/id/eprint/33376/1/DevanaiKannanMFKK2012.pdf
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spelling my-utm-ep.333762017-09-25T05:43:12Z Modification of polyethersulfone incorporated with polyvinylpyrrolidone - iodine via phase inversion and ultraviolet photo grafting for antibacterial applications 2012-10 Devanai, Kannan TP Chemical technology Incorporation of antibacterial agents into polymeric membrane is one the widely studied surface modification. Polyethersulfone (PES) membrane incorporated with polyvinylpyrrolidone-iodine (PVP-I) were prepared using phase inversion and UV induced photo-grafting techniques. The modified PES-PVP-I membranes were characterized in term of gravimetric analysis, FT-IR analysis, FESEM analysis, water flux, contact angle, porosity measurement and antibacterial effect against Escherichia coli (E.coli) and Bacillus subtilis (B.subtilis). The high water flux indicated by PES-4 and PES-7 show an improvement by the addition of PVP-I by 52 % to 62% higher compared to original PES membrane. For the UV method, the water flux decline with the increasing of irradiation time by 31 to 35% compared to the commercial original PES membrane. PES-PVP-I membranes with 10 wt% of iodine concentration developed by phase inversion and UV photo-grafting show strong antibacterial properties using halo zone test. The highest inhibition zone of PES-PVP-I membranes produced using UV photo-grafting and phase inversions against E.coli were 2.30cm2 and 1.88cm2 and against B.subtilis were 0.41cm2 and 0.48cm2. The results indicated that both methods used were favorable towards antibacterial properties with high inhibition zone and as well as in the improvement in water flux, contact angle and porosity of PES-PVP-I membranes compared to the original PES. This study shows that PES-PVP-I membrane suitable to be used in wide variety of antibacterial applications. 2012-10 Thesis http://eprints.utm.my/id/eprint/33376/ http://eprints.utm.my/id/eprint/33376/1/DevanaiKannanMFKK2012.pdf application/pdf en public http://dms.library.utm.my:8080/vital/access/manager/Repository/vital:69777?site_name=Restricted Repository masters Universiti Teknologi Malaysia, Faculty of Chemical Engineering Faculty of Chemical Engineering
institution Universiti Teknologi Malaysia
collection UTM Institutional Repository
language English
topic TP Chemical technology
spellingShingle TP Chemical technology
Devanai, Kannan
Modification of polyethersulfone incorporated with polyvinylpyrrolidone - iodine via phase inversion and ultraviolet photo grafting for antibacterial applications
description Incorporation of antibacterial agents into polymeric membrane is one the widely studied surface modification. Polyethersulfone (PES) membrane incorporated with polyvinylpyrrolidone-iodine (PVP-I) were prepared using phase inversion and UV induced photo-grafting techniques. The modified PES-PVP-I membranes were characterized in term of gravimetric analysis, FT-IR analysis, FESEM analysis, water flux, contact angle, porosity measurement and antibacterial effect against Escherichia coli (E.coli) and Bacillus subtilis (B.subtilis). The high water flux indicated by PES-4 and PES-7 show an improvement by the addition of PVP-I by 52 % to 62% higher compared to original PES membrane. For the UV method, the water flux decline with the increasing of irradiation time by 31 to 35% compared to the commercial original PES membrane. PES-PVP-I membranes with 10 wt% of iodine concentration developed by phase inversion and UV photo-grafting show strong antibacterial properties using halo zone test. The highest inhibition zone of PES-PVP-I membranes produced using UV photo-grafting and phase inversions against E.coli were 2.30cm2 and 1.88cm2 and against B.subtilis were 0.41cm2 and 0.48cm2. The results indicated that both methods used were favorable towards antibacterial properties with high inhibition zone and as well as in the improvement in water flux, contact angle and porosity of PES-PVP-I membranes compared to the original PES. This study shows that PES-PVP-I membrane suitable to be used in wide variety of antibacterial applications.
format Thesis
qualification_level Master's degree
author Devanai, Kannan
author_facet Devanai, Kannan
author_sort Devanai, Kannan
title Modification of polyethersulfone incorporated with polyvinylpyrrolidone - iodine via phase inversion and ultraviolet photo grafting for antibacterial applications
title_short Modification of polyethersulfone incorporated with polyvinylpyrrolidone - iodine via phase inversion and ultraviolet photo grafting for antibacterial applications
title_full Modification of polyethersulfone incorporated with polyvinylpyrrolidone - iodine via phase inversion and ultraviolet photo grafting for antibacterial applications
title_fullStr Modification of polyethersulfone incorporated with polyvinylpyrrolidone - iodine via phase inversion and ultraviolet photo grafting for antibacterial applications
title_full_unstemmed Modification of polyethersulfone incorporated with polyvinylpyrrolidone - iodine via phase inversion and ultraviolet photo grafting for antibacterial applications
title_sort modification of polyethersulfone incorporated with polyvinylpyrrolidone - iodine via phase inversion and ultraviolet photo grafting for antibacterial applications
granting_institution Universiti Teknologi Malaysia, Faculty of Chemical Engineering
granting_department Faculty of Chemical Engineering
publishDate 2012
url http://eprints.utm.my/id/eprint/33376/1/DevanaiKannanMFKK2012.pdf
_version_ 1747816146199904256

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