Ultrastructural, Morphological, and Antifungal Properties of Micro and Nanoparticles of Chitosan Crosslinked with Sodium Tripolyphosphate

Recent studies have demonstrated the antibacterial effect of micro and nanoparticles of chitosan (CS) crosslinked with sodium tripolyphosphate (TPP), and incorporating metallic ions, bringing that the size, shape, and zeta potential are related to the antimicrobial potential. However, there are few...

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Bibliographic Details
Published in:Journal of polymers and the environment 2013-12, Vol.21 (4), p.971-980
Main Authors: Cota-Arriola, Octavio, Cortez-Rocha, Mario Onofre, Ezquerra-Brauer, Josafat Marina, Lizardi-Mendoza, Jaime, Burgos-Hernández, Armando, Robles-Sánchez, Rosario Maribel, Plascencia-Jatomea, Maribel
Format: Article
Language:English
Subjects:
Applied sciences
Aspergillus parasiticus
Chemistry
Chemistry and Materials Science
Chitosan
Crosslinking
Environmental Chemistry
Environmental Engineering/Biotechnology
Exact sciences and technology
Fungi
Industrial Chemistry/Chemical Engineering
Infrared radiation
Infrared spectroscopy
Materials Science
Nanoparticles
Natural polymers
Original Paper
Phosphates
Physicochemistry of polymers
Polymer Sciences
Sodium
Spores
Starch and polysaccharides
Synergistic effect
Zeta potential
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Summary:Recent studies have demonstrated the antibacterial effect of micro and nanoparticles of chitosan (CS) crosslinked with sodium tripolyphosphate (TPP), and incorporating metallic ions, bringing that the size, shape, and zeta potential are related to the antimicrobial potential. However, there are few studies on the antifungal activity and the effect of TPP on the antimicrobial potential. Micro and nanoparticles were prepared from CS by ionotropic gelation with TPP, and structurally characterized by transmission and scanning electron spectroscopy, and Fourier transformed infrared spectroscopy. Depending on the concentration of CS and TPP, spherical particles were obtained from 80 nm to 20 μm. Subsequently, particles were evaluated for their antifungal potential against Aspergillus parasiticus assessing radial growth, spore germination, and morphological changes. An increase in the antifungal potential compared with CS in solution was observed, inhibiting the development of the fungus causing clear morphological changes in both, hyphae and spores. Particle size and the availability of functional groups of CS/TPP (amino group and phosphate), suggest a possible synergistic effect between CS and TPP.
ISSN:1566-2543
1572-8919
1572-8900
DOI:10.1007/s10924-013-0583-1