Green Synthesis of Silver Nanoparticles for Preparation of Gelatin Films with Antimicrobial Activity

Silver nanoparticles were successfully synthesized using aqueous extract and AgNO as a precursor. UV-Vis showed a distinct absorption peak at 424 nm attributed to silver nanoparticles due to their surface plasmon resonance. Atomic absorption analysis reflected an increase in the concentration of nan...

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Bibliographic Details
Published in:Polymers 2022-08, Vol.14 (17), p.3453
Main Authors: Pérez-Marroquín, Xóchitl A, Aguirre-Cruz, Gabriel, Campos-Lozada, Gieraldin, Callejas-Quijada, Graciela, León-López, Arely, Campos-Montiel, Rafael G, García-Hernández, Laura, Méndez-Albores, Abraham, Vázquez-Durán, Alma, Aguirre-Álvarez, Gabriel
Format: Article
Language:English
Subjects:
Antimicrobial agents
Antioxidants
Biodegradation
Biopolymers
Cancer
Environmental impact
Food packaging
Food safety
Functional groups
Gelatin
Nanomaterials
Nanoparticles
Nanotechnology
Photomicrographs
Proteins
Silver
Silver nitrate
Synthesis
Zeta potential
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Summary:Silver nanoparticles were successfully synthesized using aqueous extract and AgNO as a precursor. UV-Vis showed a distinct absorption peak at 424 nm attributed to silver nanoparticles due to their surface plasmon resonance. Atomic absorption analysis reflected an increase in the concentration of nanoparticles in relation to the progress of the synthesis, obtaining a peak concentration value of 15.7 mg/L at 50 min. The FTIR spectra revealed the characteristic functional groups of phytomolecules involved in the silver-ion binding process, such as R-O-H (3335 cm O=C-OH (2314 cm ) and C-C=C (1450 cm ). At 50 min, zeta potential showed the stability of the nanoparticles with the value of -21.73 mV. TEM micrographs revealed the formation of spherical nanoparticles with an average size of about 85.77 nm. Furthermore, films incorporated with nanoparticles exhibited a Tg from 66.42 °C to 73.71 °C and Tm at 103.31 °C. Films from the G22 formulation presented excellent antibacterial properties inhibiting the growth of . aqueous extract could be a low-cost, eco-friendly, and efficient reducing and capping agent for the synthesis of nanometric-sized Ag particles. Gelatin films with nanoparticles are expected to have high potential as an active food packaging system.
ISSN:2073-4360
2073-4360
DOI:10.3390/polym14173453