NDLI: Bioactive Carboxymethyl Cellulose (CMC)-Based Films Modified with Melanin and Silver Nanoparticles (AgNPs)-The Effect of the Degree of CMC Substitution on the In Situ Synthesis of AgNPs and Films' Functional Properties.

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Bioactive Carboxymethyl Cellulose (CMC)-Based Films Modified with Melanin and Silver Nanoparticles (AgNPs)-The Effect of the Degree of CMC Substitution on the In Situ Synthesis of AgNPs and Films' Functional Properties.

Content Provider	Europe PMC
Author	Macieja, Szymon Środa, Bartosz Zielińska, Beata Roy, Swarup Bartkowiak, Artur Łopusiewicz, Łukasz
Editor	Piozzi, Antonella Francolini, Iolanda
Copyright Year	2022
Abstract	Green synthesis of nanoparticles for use in food packaging or biomedical applications is attracting increasing interest. In this study, the effect of the degree of substitution (0.7, 0.9 and 1.2) of a carboxymethylcellulose polymer matrix on the synthesis and properties of silver nanoparticles using melanin as a reductant was investigated. For this purpose, the mechanical, UV-Vis barrier, crystallinity, morphology, antioxidant and antimicrobial properties of the films were determined, as well as the color and changes in chemical bonds. The degree of substitution effected noticeable changes in the color of the films (the L* parameter was 2.87 ± 0.76, 5.59 ± 1.30 and 13.45 ± 1.11 for CMC 0.7 + Ag, CMC 0.9 + Ag and CMC 1.2 + Ag samples, respectively), the UV-Vis barrier properties (the transmittance at 280 nm was 4.51 ± 0.58, 7.65 ± 0.84 and 7.98 ± 0.75 for CMC 0.7 + Ag, CMC 0.9 + Ag and CMC 1.2 + Ag, respectively) or the antimicrobial properties of the films (the higher the degree of substitution, the better the antimicrobial properties of the silver nanoparticle-modified films). The differences in the properties of films with silver nanoparticles synthesized in situ might be linked to the increasing dispersion of silver nanoparticles as the degree of CMC substitution increases. Potentially, such films could be used in food packaging or biomedical applications.
Journal	International Journal of Molecular Sciences [Int J Mol Sci]
Volume Number	23
DOI	10.3390/ijms232415560
PubMed Central reference number	PMC9779376
Issue Number	24
PubMed reference number	36555199
e-ISSN	14220067
Language	English
Publisher	Molecular Diversity Preservation International (MDPI)
Publisher Date	2022-12-08
Access Restriction	Open
Subject Keyword	melanin carboxymethyl cellulose bioactive films silver nanoparticles antimicrobial green synthesis
Content Type	Text
Resource Type	Article
Subject	Physical and Theoretical Chemistry Molecular Biology Spectroscopy Catalysis Computer Science Applications Medicine Inorganic Chemistry Organic Chemistry

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