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Enhanced antifungal activity of novel cationic chitosan derivative bearing triphenylphosphonium salt via azide-alkyne click reaction
- Source :
- International Journal of Biological Macromolecules. 165:1765-1772
- Publication Year :
- 2020
- Publisher :
- Elsevier BV, 2020.
-
Abstract
- As one of the most promising biopolymers for a variety of potential applications, chitosan has attracted much attention because of its unique biological, chemical, and physical properties. The functionalization of chitosan has been adopted to synthesize novel chitosan derivatives with improved water-solubility and excellent biological activities. In this paper, chitosan was functionalized with a triphenylphosphonium group by means of the copper (I) catalyzed azide-alkyne “click” reaction and has been investigated as potential polymer for agricultural antifungal biomaterial. The influence of chemical modification on the structural characteristics and water-solubility of chitosan was investigated by FTIR spectroscopy, 1H NMR spectroscopy, elemental analysis, and UV–vis spectrum. Furthermore, the antifungal property of target chitosan derivative against four plant threatening fungal pathogens was evaluated and in vitro investigation demonstrated that triphenylphosphonium salt incorporated chitosan backbone had excellent antifungal property compared with chitosan and intermediate chitosan derivative. Notably, target chitosan derivative displayed relatively strongest antifungal effect with over 80% inhibitory index against Botrytis cinerea at 1.0 mg/mL. The results of a detailed antifungal study indicated that cationic chitosan derivative bearing 1,2,3-triazole and triphenylphosphonium moieties provided a promising platform for preparation of novel cationic antifungal biomaterials in the field of agriculture.
- Subjects :
- Azides
Antifungal Agents
Proton Magnetic Resonance Spectroscopy
Alkyne
Microbial Sensitivity Tests
macromolecular substances
02 engineering and technology
Biochemistry
Chitosan
03 medical and health sciences
chemistry.chemical_compound
Organophosphorus Compounds
Structural Biology
Cations
Spectroscopy, Fourier Transform Infrared
Molecular Biology
030304 developmental biology
chemistry.chemical_classification
0303 health sciences
Chemistry
Fungi
technology, industry, and agriculture
Cationic polymerization
Water
Chemical modification
Biomaterial
General Medicine
equipment and supplies
021001 nanoscience & nanotechnology
Combinatorial chemistry
carbohydrates (lipids)
Solubility
Alkynes
Click chemistry
Surface modification
Click Chemistry
Azide
0210 nano-technology
Subjects
Details
- ISSN :
- 01418130
- Volume :
- 165
- Database :
- OpenAIRE
- Journal :
- International Journal of Biological Macromolecules
- Accession number :
- edsair.doi.dedup.....280bcf7a511c81b0dc47ce1d423d63bf