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N-halamines from rice straw
Faculty
Science
Year:
2012
Type of Publication:
Article
Pages:
209-217
Authors:
Ahmed, Abd El-Shafey I, Cavalli, Gabriel, Bushell, Michael E, Wardell, John N, Hay, John N
DOI:
10.1007/s10570-011-9606-z
Journal:
CELLULOSE SPRINGER
Volume:
19
Research Area:
Materials Science; Polymer Science
ISSN
ISI:000298994600020
Keywords :
Bioactive materials, Cellulose, N-halamine, Bacteria, Cross-linking
Abstract:
The cellulosic part of rice straw was modified to develop N-halamine derivatives for disinfection. The process involved cross-linking of the cellulosic material with amino/amide/imide containing compounds; cyclic and acyclic. The structures of the prepared materials were identified using FTIR and solid state (13)CNMR. The modified materials were halogenated to form N-halamines and the antimicrobial activity of each evaluated against examples of Gram-positive (Staphylococcus aureus) and Gram-negative bacteria (Escherichia coli) using a variety of methods; agar plate, blended agar, stirred flask and in columns. One of the N-halamines achieved a 9 log reduction against both E. coli and S. aureus in 4 h. In addition, no S. aureus growth was recorded on agar plates blended with 0.5 g of this same material.
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