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פותח על ידי קלירמאש פתרונות בע"מ -
Durable contact active antimicrobial materials formed by a one-step covalent modification of polyvinyl alcohol, cellulose and glass surfaces
Year:
2013
Authors :
גרניט, רינה
;
.
זקין, ורדה
;
.
יפרמוב, טטיאנה
;
.
פוברנוב, ילנה
;
.
שמש, משה
;
.
Volume :
112
Co-Authors:
Poverenov, E., Department of Food Quality and Safety, Agricultural Research Organization, The Volcani Center, Bet-Dagan 50250, Israel
Shemesh, M., Department of Food Quality and Safety, Agricultural Research Organization, The Volcani Center, Bet-Dagan 50250, Israel
Gulino, A., Department of Chemistry, University of Catania, And INSTM UdR of Catania, Viale Andrea Doria 6, Catania 95125, Italy
Cristaldi, D.A., Department of Chemistry, University of Catania, And INSTM UdR of Catania, Viale Andrea Doria 6, Catania 95125, Italy
Zakin, V., Department of Food Quality and Safety, Agricultural Research Organization, The Volcani Center, Bet-Dagan 50250, Israel
Yefremov, T., Department of Food Quality and Safety, Agricultural Research Organization, The Volcani Center, Bet-Dagan 50250, Israel
Granit, R., Department of Food Quality and Safety, Agricultural Research Organization, The Volcani Center, Bet-Dagan 50250, Israel
Facilitators :
From page:
356
To page:
361
(
Total pages:
6
)
Abstract:
In this work we have applied a direct covalent linkage of quaternary ammonium salts (QAS) to prepare a series of contact active antimicrobial surfaces based on widely utilized materials. Formation of antimicrobial polyvinyl alcohol (PVA-QAS), cellulose (cellulose-QAS) and glass (glass-QAS) surfaces was achieved by one step synthesis with no auxiliary linkers. The X-ray photoelectron spectroscopy (XPS) revealed tridentate binding mode of the antimicrobial agent. The antimicrobial activity of the prepared materials was tested on Bacillus cereus, Alicyclobacillus acidoterrestris, Escherichia coli and Pseudomonas aeruginosa. Active site density of the modified materials was examined and found to correlate with their antimicrobial activity. Stability studies at different pH values and temperatures confirmed that the linkage of the bioactive moiety to the surface is robust and resistant to a range of pH and temperatures. Prolonged long-term effectiveness of the contact active materials was demonstrated by their repeated usage, without loss of the antimicrobial efficacy. © 2013 Elsevier B.V.
Note:
Related Files :
covalent bond
Materials
microorganisms
Surface properties
Synthesis
עוד תגיות
תוכן קשור
More details
DOI :
10.1016/j.colsurfb.2013.07.032
Article number:
Affiliations:
Database:
סקופוס
Publication Type:
מאמר
;
.
Language:
אנגלית
Editors' remarks:
ID:
32178
Last updated date:
02/03/2022 17:27
Creation date:
17/04/2018 01:08
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Scientific Publication
Durable contact active antimicrobial materials formed by a one-step covalent modification of polyvinyl alcohol, cellulose and glass surfaces
112
Poverenov, E., Department of Food Quality and Safety, Agricultural Research Organization, The Volcani Center, Bet-Dagan 50250, Israel
Shemesh, M., Department of Food Quality and Safety, Agricultural Research Organization, The Volcani Center, Bet-Dagan 50250, Israel
Gulino, A., Department of Chemistry, University of Catania, And INSTM UdR of Catania, Viale Andrea Doria 6, Catania 95125, Italy
Cristaldi, D.A., Department of Chemistry, University of Catania, And INSTM UdR of Catania, Viale Andrea Doria 6, Catania 95125, Italy
Zakin, V., Department of Food Quality and Safety, Agricultural Research Organization, The Volcani Center, Bet-Dagan 50250, Israel
Yefremov, T., Department of Food Quality and Safety, Agricultural Research Organization, The Volcani Center, Bet-Dagan 50250, Israel
Granit, R., Department of Food Quality and Safety, Agricultural Research Organization, The Volcani Center, Bet-Dagan 50250, Israel
Durable contact active antimicrobial materials formed by a one-step covalent modification of polyvinyl alcohol, cellulose and glass surfaces
In this work we have applied a direct covalent linkage of quaternary ammonium salts (QAS) to prepare a series of contact active antimicrobial surfaces based on widely utilized materials. Formation of antimicrobial polyvinyl alcohol (PVA-QAS), cellulose (cellulose-QAS) and glass (glass-QAS) surfaces was achieved by one step synthesis with no auxiliary linkers. The X-ray photoelectron spectroscopy (XPS) revealed tridentate binding mode of the antimicrobial agent. The antimicrobial activity of the prepared materials was tested on Bacillus cereus, Alicyclobacillus acidoterrestris, Escherichia coli and Pseudomonas aeruginosa. Active site density of the modified materials was examined and found to correlate with their antimicrobial activity. Stability studies at different pH values and temperatures confirmed that the linkage of the bioactive moiety to the surface is robust and resistant to a range of pH and temperatures. Prolonged long-term effectiveness of the contact active materials was demonstrated by their repeated usage, without loss of the antimicrobial efficacy. © 2013 Elsevier B.V.
Scientific Publication
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