Using microwave irradiation to catalyze the in-situ manufacturing of silver nanoparticles on cotton fabric for antibacterial and UV-protective application

Abstract

Antibacterial and UV-protective cotton fabrics were produced with an in-situ synthesis of silver nanoparticles using trisodium citrate as reductive agent and microwave irradiation for starting the synthesis reaction. The creation of silver nanoparticles with different morphologies such as quasi-spherical and cubic nanoparticles was confirmed by the SEM images. The EDS pattern of the loaded sample confirmed the uniform silver loading on the surface of cotton fibers as well as their crystal structure was approved by the X-ray diffraction pattern. Increasing reaction temperature (80, 100, 120, and 140°C) caused a significant decrease up to 75% in the average diameter of nanoparticles and narrowing the size distribution. Also, increasing amounts of trisodium citrate (0, 100, 200, and 400 ppm) in the synthesizing solution resulted in a decrease up to of 59% in the average diameter and prevented agglomeration of nanoparticles. The FTIR spectra confirmed that the highest absorbed water in the loaded cotton samples was achieved in the highest concentration of trisodium citrate. The antibacterial properties of loaded cotton samples significantly depended on the reaction temperature as well as trisodium citrate concentration. The loaded cotton fabrics showed active antibacterial properties with inhibition zones of 16-18.5 mm against the Gram-positive Staphylococcus aureus and the Gram-negative Escherichia coli. Moreover, the prepared AgNP cotton fabrics demonstrated excellent UV-rays blocking properties with a high rate of ultraviolet protection factor value.

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“…The NPs seemed to be spherical in SEM pictures. The findings revealed that the NPs finished cotton fabric has a wash fastness of ten washes (Poortavasoly and Montazer 2014;Ullah et al 2014;Barani and Mahltig 2020;Boomi et al 2020;Čuk et al 2021). 20 nm.…”

Development of antibacterial and UV protective cotton fabrics using plant food waste and alien invasive plant extracts as reducing agents for the in-situ synthesis of silver nanoparticles

“…Cotton fibres are inherently nutritious and hydrophilic and therefore provide an excellent environment for the growth of bacteria and fungi (Ravindra et al 2010), and they do not in themselves have an effective barrier to UV radiation, especially when undyed or dyed in light shades (Czajkowski and Paluszkiewicz 2008). Silver nanoparticles (AgNP) applied on cotton have been found to play an important role in developing protective properties against pathogenic bacteria (Bachir and Abouni 2015;Ibrahim et al 2020;Khalil et al 2014; Barani and Mahltig 2020) and UV radiation (Rao et al 2019;Aladpoosh et al 2014). The application of AgNP on cotton fabrics can be carried out in two-step or one-step processes.…”

Silver Nanoparticles Stabilized by Oligomeric Hyperbranched Ionic Liquid: Structure and Antimicrobial Properties

“…Such changes in the spectrum of AgNP indicate the adsorption of carbonyl groups and imidazolium cations on their surface [23] and the formation of complexes of the "guest-host" type between HB-OIL and silver ions. In addition, there are intense absorption bands at 1418 cm -1 and 1575 cm -1 in the spectrum of AgNP, which are related to symmetric and asymmetric valence vibrations of carboxylate anions of trisodium citrate [24], which partially overlap with such valence vibrations of C-C bonds of the aromatic component and deformational vibrations of C-H bonds of methyl and methylene groups of HB-OIL. This indicates the presence of trisodium citrate adsorbed on the surface of the synthesized AgNP and that formed complexes with silver ions.…”