Physical and Mechanical Characterization of a Functionalized Cotton Fabric with Nanocomposite Based on Silver Nanoparticles and Carboxymethyl Chitosan Using Green Chemistry

Abstract

Cotton is the most widely used natural fiber for textiles but its innate capacity to absorb moisture, retain oxygen, and high specific surface area make it more prone to microbial contamination, becoming an appropriate medium for the growth of bacteria and fungi. In recent years, the incorporation of silver nanoparticles in textile products has been widely used due to their broad-spectrum antibacterial activity and low toxicity towards mammalian cells. The aim of the current study is to synthesize and characterize a nanocomposite based on silver nanoparticles and carboxymethyl chitosan (AgNPs-CMC), which was utilized to provide a functional finish to cotton fabric. The scanning electron microscope (SEM) to produce a scanning transmission electron microscope (STEM) image showed that the nanocomposite presents AgNPs with a 5–20 nm size. The X-ray diffraction (XRD) analysis confirmed the presence of silver nanoparticles. The concentration of silver in the functionalized fabric was evaluated by inductively coupled plasma optical emission spectrometry (ICP-OES), which reported an average concentration of 13.5 mg of silver per kg of functionalized fabric. SEM showed that silver nanoparticles present a uniform distribution on the surface of the functionalized cotton fabric fibers. On the other hand, by infrared spectroscopy, it was observed that the functionalized fabric variation (compared to control) had a displaced peak of intensity at 1594.32 cm−1, corresponding to carboxylate anions. Similarly, Raman spectroscopy showed an intense peak at 1592.84 cm−1, which corresponds to the primary amino group of carboxymethyl chitosan, and a peak at 1371.5 cm−1 corresponding to the carboxylic anions. Finally, the physical and mechanical tests of tensile strength and color index of the functional fabric reported that it was no different (p ˃ 0.05) than the control fabric. Our results demonstrate that we have obtained an improved functionalized cotton fabric using green chemistry that does not alter intrinsic properties of the fabric and has the potential to be utilized in the manufacturing of hospital garments.

Green Synthesis of a Novel Silver Nanoparticle Conjugated with Thelypteris glandulosolanosa (Raqui-Raqui): Preliminary Characterization and Anticancer Activity

“…Our research group has previously synthesized and characterized functionalized cotton fabric with silver nanoparticles and carboxymethyl chitosan (AgNPs-CMC) [131,132]. The nanocomposite obtained from the complex [Ag (NH 3 ) 2 ] + was synthesized under similar conditions and verified the formation of silver nanoparticles [131]. Our results, as characterized by Dynamic Light Scattering (DLS) for AgNO 3 , revealed a monodisperse distribution of the nanocomposite with an average hydrodynamic size of 166.7 nm [131].…”

“…Our results, as characterized by Dynamic Light Scattering (DLS) for AgNO 3 , revealed a monodisperse distribution of the nanocomposite with an average hydrodynamic size of 166.7 nm [131]. Fourier Transformation Infrared spectroscopy (FT-IR) demonstrated the inhibition of spec-tral bands at 879 and 723 cm −1 indicating the presence of AgNPs in the nanocomposite [131]. Scanning electron microscopy (SEM) demonstrated that the silver nanoparticles were spherical in shape and between 5 and 20 nm [131].…”

“…The nanocomposite obtained from the complex [Ag (NH 3 ) 2 ] + was synthesized under similar conditions and verified the formation of silver nanoparticles [131]. Our results, as characterized by Dynamic Light Scattering (DLS) for AgNO 3 , revealed a monodisperse distribution of the nanocomposite with an average hydrodynamic size of 166.7 nm [131]. Fourier Transformation Infrared spectroscopy (FT-IR) demonstrated the inhibition of spec-tral bands at 879 and 723 cm −1 indicating the presence of AgNPs in the nanocomposite [131].…”

“…Fourier Transformation Infrared spectroscopy (FT-IR) demonstrated the inhibition of spec-tral bands at 879 and 723 cm −1 indicating the presence of AgNPs in the nanocomposite [131]. Scanning electron microscopy (SEM) demonstrated that the silver nanoparticles were spherical in shape and between 5 and 20 nm [131]. The functionalized fabric evaluated using X-ray diffraction (XRD) analysis further confirmed the presence of silver nanoparticles [132].…”

“…Our research group has previously synthesized and characterized functionalized cotton fabric with silver nanoparticles and carboxymethyl chitosan (AgNPs-CMC) [131,132]. The nanocomposite obtained from the complex [Ag (NH 3 ) 2 ] + was synthesized under similar conditions and verified the formation of silver nanoparticles [131].…”