Effect of cationization on adsorption of silver nanoparticles on cotton surfaces and its antibacterial activity

Abstract

Cotton was cationized by exhaustion method using 3-chloro-2-hydroxypropyl trimethyl ammonium chloride (CHPTAC) as a cation-generating agent. Adsorption of silver nanoparticles on normal and cationized cotton was studied by exhaustion method at temperatures of 80°C and 100°C. Two exhaustion baths were used, containing nanosilver colloidal solutions stabilized by two different stabilizers and various concentrations of silver nanoparticles. Fourier-transform infrared (FT-IR) spectra of normal and cationized samples confirmed the existence of quaternary ammonium groups on cationized cellulose fibers. X-ray diffraction (XRD) patterns showed that crystallinity of the modified cellulose fibers was decreased. Scanning electron microscope (SEM) images revealed that the surface of the modified cotton was rougher than that of normal cotton. In addition, SEM images showed the presence of silver nanoparticles on the surface of treated fabric samples. The amount of silver particles adsorbed on the fabric samples was determined using inductively coupled plasma-optical emission spectrometer. Antibacterial tests were performed against Escherichia coli bacteria as an indication of antibacterial effect of samples. Cationized cotton samples adsorbed more silver nanoparticles and then had greater ability to inhibit bacteria.

Investigation of metal absorption and antibacterial activity on cotton fabric modified by low temperature plasma

“…Silver particles dispersed in aqueous solutions usually have a negative surface charge (Jones 2002;Shateri Khalil-Abad et al 2009) and then create a repulsive force against the cellulose fibers, which inhibits the sedimentation of silver particles on the surface of the fibers. Consequently, silver particle adsorption is much lower on normal cotton than on nitrogen-plasma-treated cotton fibers.…”

“…They found that the addition of chitosan to the CM-cellulose can increase the crosslinking degree and the adsorption capacity of the blend of hydrogels (Zhao and Mitomo 2008). In other research, it was shown that the cationization process using 3-chloro-2-hydroxypropyl trimethyl ammonium chloride (CHPTAC) on cotton fabric caused an increase in the absorption of nanosilver particles on the surface (Shateri Khalil-Abad et al 2009). …”

“…However, some disadvantages, such as high cost, inadequate reactivity, fabric yellowing, excessive fabric tendering and toxicity, were observed with these substances, preventing their industrial application (Shateri Khalil-Abad et al 2009). …”

Durable antibacterial finish on cotton fabric using hydrogel–silver nanocomposite

“…The antibacterial activity of the fabric was tested qualitatively and quantitatively by the disk diffusion method 10,11,20 and reduction of colony forming units (CFU) 16,21,22 of Escherichia coli (Gram-negative bacterium). For disk diffusion method, a mixture of nutrient broth and nutrient agar in 1 L distilled water at pH 7.2 as well as the empty Petri plates were autoclaved.…”

Antibacterial dyeing of polyamide using turmeric as a natural dye

“…Many methods have been reported, such as fluorocarbon repellent finish, chemical binding of heterocyclic N halamine functional group to polyamide, using plasma, or immobilization of antimicrobial metallic nanoparticles on textiles (TiO 2 , Ag, Cu, ZnO, etc.) [5][6][7][8][9][10][11][12][13][14].…”