Nanoparticles of activated natural zeolite on textiles for protection and therapy

Abstract

Activated natural zeolite clinoptilolite is microporous hydrated aluminosilicates crystals with well-defined structures containing AlO 4 and SiO 4 tetrahedral linked through the common oxygen atoms. It is to point out that zeolites act as strong adsorbents and ion-exchangers but having many other useful properties. Due to its cationexchange ability, zeolites have catalytic properties and, for that, multiple uses in medicine and industry, agriculture, water purification and detergents. Zeolites are nontoxic substance, excellent for UVR and microbes protection, for proteins and small molecules such as glucose adsorption. In this paper its positive effect on the metabolism of living organisms and its anticancerogenic, antiviral, antimetastatic and antioxidant effect. The activity of natural zeolite as natural immunostimulator was presented as well as its help in healing wounds. Therefore, the present paper is an attempt to modify cotton (by mercerization) and polyester (by alkaline hydrolysis) fabrics for summer clothing with addition of natural zeolite nanoparticles for achieving UV and antibacterial protective textiles.

Thermal, Mechanical and Optical Features of Aluminosilicate-Coated Cotton Textiles via the Crosslinking Method

“…As can be seen from the curves, zeolites significantly enhanced the absorption ability of UV-rays (reflectance values are lower in comparison to the reference sample). The stronger the UV absorption intensity of the zeolite-modified textiles, the higher the UV protection ability was; which is in good agreement with the UPF results disclosed additionally in Figure 7, as well as with the findings of the study accomplished by [16]. besides the above-mentioned, as could be perceived from Figure 5b, at 1708 cm −1 and 1239 cm −1 on account of the carbonyl stretching and N-H vibrations of -CO-NH-R bonds [27], which were formed as a result of successful high-temperature crosslinking between adjacent cellulose chains and the mDMDHEU.…”

“…It was evident from Figure 8 that the untreated cotton had UPF 3.4, indicating a non-ratable UV protection level. After the applications of 5 and 30 g/L of zeolite particles during the pad-drythermofix procedure, the fabric UPFs increased exceedingly, as expected from the literature [16], i.e., up to values of 24.4 (30 g/L Z at pH 11), and 27.3 (30 g/L Z@mDMDHEU at pH 11), meaning good to very good UV protective properties with regard to ASTM guidelines for labelling UV-protective clothing (ASTM D 6603), which was in good agreement with the above-presented DRS profiles in the UV region (Figure 6). Although the achieved UPFs of all the zeolite-modified/washed samples were lower than the value of 55 declared as excellent protection (UPF 50+), the gained results confirmed that zeolites impart functionality to cellulose fabrics against the transmittance of harmful solar UV rays.…”

“…Further employment of dyestuffs/printing pigments and finishing agents could also improve the UPFs, as is well-documented [1,16].…”

Activated and Micronized Zeolite in the Modulation of Cellular Oxidative Stress in Mexican Smokers: A Randomized Clinical Trial

“…Zeolites are a group of aluminosilicates that exhibit diverse biological activities and have found uses as adjuvant therapy in anticancer therapy, adjuvant for vaccines, treatment of heartburn, and as antidiarrheal agents [8][9][10][11][12][13][14][15][16][17] . Natural zeolites are hydrated porous volcanic microcrystals formed mainly of AlO 4 and SiO 4 , which have defined shapes resulting from tetrahedral building blocks connected through O 2 atoms.…”

Light Conversion and Scattering in UV Protective Textiles

“…of fibre, fabric surface and construction, type and concentration of dyestuff, fluorescent whitening agent (FWA), UV-B protective agents, as well as nanoparticles, if applied [6,[13][14][15][16][17][18][19][20][21][22][23][24][25][26][27][28][29][30][31][32].…”