1. Quaternized trimethyl functionalized chitosan based antifungal membranes for drinking water treatment.
- Author
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Tabriz A, Ur Rehman Alvi MA, Khan Niazi MB, Batool M, Bhatti MF, Khan AL, Khan AU, Jamil T, and Ahmad NM
- Subjects
- Antifungal Agents chemical synthesis, Antifungal Agents chemistry, Aspergillus niger drug effects, Chitosan chemical synthesis, Chitosan chemistry, Fusarium drug effects, Hydrophobic and Hydrophilic Interactions, Permeability, Polymers chemistry, Porosity, Quaternary Ammonium Compounds chemical synthesis, Quaternary Ammonium Compounds chemistry, Sulfones chemistry, Water Purification instrumentation, Wettability, Antifungal Agents pharmacology, Chitosan pharmacology, Drinking Water microbiology, Membranes, Artificial, Quaternary Ammonium Compounds pharmacology
- Abstract
Chitosan was functionalized to synthesize Quaternized N-trimethyl chitosan (TMC) and incorporated in polyethersulfone (PES) polymer to fabricate membranes for enhanced antifungal activity and water treatment. The TMC was synthesized from chitosan via reductive alkylation and methylation. The effect of concentration of chitosan and TMC on the properties of functionalized PES membranes was investigated. The membrane with the lowest concentration of TMC 5% (w/w) resulted in the largest average pore size than the PES membrane without chitosan or TMC. The surface wettability was enhanced as contact angle was reduced from 90° to 57° by increasing concentration of TMC to 15% (w/w). The resultant membranes exhibited improved water hydrophilicity, permeability and inhibition against fungal species. The functionalized membranes had shown noticeable antifungal activity against Aspergillus niger in the case of 15% TMC with 72% antifungal activity and 15% chitosan with 63% antifungal activity against Fusarium solani., (Copyright © 2018. Published by Elsevier Ltd.)
- Published
- 2019
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