Fabrication and characterization of a biocompatible hybrid film based on silver nanoparticle/ethyl cellulose polymer

• Published in: Cellulose (London) Vol. 28; no. 14; pp. 9227 - 9240
• Main Authors: Reyes-Melo, Martín Edgar, Miranda-Valdez, Isaac Yair, Puente-Córdova, Jesús Gabino, Camarillo-Hernández, Carlos Adrián, López-Walle, Beatriz
• Format: Journal Article
• Language: English
• Published: Dordrecht Springer Netherlands 01.09.2021; Springer Nature B.V
• Subjects: Actuators; Biocompatibility; Bioorganic Chemistry; Cellulose; Ceramics; Chemistry; Chemistry and Materials Science; Composites; Dielectric properties; Ethyl cellulose; Fourier transforms; Glass; Glass transition temperature; Image transmission; Modulus of elasticity; Morphology; Nanoparticles; Natural Materials; Optical properties; Organic Chemistry; Original Research; Physical Chemistry; Polymer Sciences; Reducing agents; Silver; Stabilizers (agents); Sustainable Development; Polymer hybrid film; Dynamic mechanical analysis; Dynamic dielectric analysis; Ethyl cellulose; Silver nanoparticle
• ISSN: 0969-0239; 1572-882X
• DOI: 10.1007/s10570-021-04066-4

This work deals with a green route to fabricate a biocompatible hybrid film composed of silver nanoparticles (AgNPs) and ethyl cellulose (EC). The hybrid film (AgNP/EC), with a thickness of 30 μm, was obtained by synthesizing in situ AgNPs in EC. EC was used as a reducing agent of silver ions and stabilizing agent of AgNPs. The structural, optical, mechanical, and dielectric properties of the AgNP/EC film were characterized; the results were compared to a reference EC film. From transmission electron microscopy (TEM) images, AgNPs of quasi-spherical morphology (average size ~ 1.94 nm) embedded in the EC matrix of the hybrid film were identified. The UV–visible absorbance spectrum of the AgNP/EC film showed three peaks associated with the presence of AgNPs in the EC matrix. Through Fourier transform infrared spectroscopy (FTIR), a band at 1588 cm −1 was assigned to the interaction between carboxyl groups of EC and AgNPs. Compared to the EC film, the mechanical and dielectric dynamic analyses evidenced for the AgNP/EC film an increment of the glass transition temperature and storage elastic modulus. But the dielectric permittivity of AgNP/EC film decreases slightly with respect to EC film. Due to its properties the AgNP/EC film can be considered as an important material with potential applications for the design of sensors and actuators in biological systems. Graphic abstract