ABSTRACT
This work is a critical preventive study for providing a healthy life and enhancing people's safety at work in which introduces of highly efficient and durable UV-protection and antibacterial textiles. With this aim, ZnO nanoparticles are in situ synthesized on the modified cotton fabric to produce the multifunctional fabrics. Herein, the cotton fabric is oxidized by periodate and then treated by 4-aminobenzoic acid ligand (PABA). The modified cotton fabrics are characterized via X-ray powder diffraction, Fourier-transform infrared spectroscopy-attenuated total reflectance, scanning electron microscope, X-ray photoelectron spectroscopy, and thermogravimetric analysis. Moreover, the anti-bacterial, UV-protection, hydrophilicity, and mechanical properties of samples are investigated. The results show that pre-oxidization cotton fabric provides better active sites for the treatment with PABA. Then, PABA treatment provides significant sites for the growth of the ZnO nanoparticles and maintains cross-linking property between oxidized cellulosic fibers and the ZnO nanoparticles which improves the formation and durability of ZnO nanoparticles. The simultaneous sample treatment with ZnO and PABA had synergistic effects on UV protection, stability, and mechanical properties. Moreover, the ZnO PABA oxidized cotton fabrics show excellent UV-protection and significant antibacterial efficacy after 20 washing cycles and 100 abrasion cycles, which can be used in advanced protective textiles.
Subject(s)
4-Aminobenzoic Acid/chemistry , Cellulose/chemistry , Cotton Fiber , Sunscreening Agents , Textiles , Zinc Oxide/chemistry , Anti-Bacterial Agents/chemistry , Anti-Bacterial Agents/pharmacology , Escherichia coli/drug effects , Metal Nanoparticles/chemistry , Staphylococcus aureus/drug effects , Ultraviolet Rays/adverse effectsABSTRACT
This work describes in situ synthesis and application of the zinc glutamate Bio Metal-Organic Framework (BioMOF) supported on cellulose fabrics as a dual material for nitric oxide (NO) and 5-fluorouracil (5FU) controlled delivery for wound and/or skin cancer therapy. In situ synthesis of BioMOF on the cotton fabric was successfully achieved and the incorporation of NO and 5FU was studied. We have observed that BioMOF doped with FeII metal ions has a beneficial impact on NO incorporation. The products obtained were analyzed with X-ray powder diffraction (XRPD), Fourier-Transform Infrared Spectroscopy-Attenuated Total Reflectance (FTIR-ATR), Field Emission Scanning Electron Microscopy (FESEM), Diffuse Reflectance UV-Vis-NIR spectrometer, X-Ray pHotoelectron Spectroscopy (XPS), Thermogravimetric Analysis (TGA), N2 adsorption analysis, Transition UV-Visible spectroscopy, and Gas Chromatography-Mass Spectroscopy (GC-MS). Moreover, antibacterial and anticancer activity in melanoma skin cell was carried out in order to prove the biological activity of the drug-loaded BioMOF on treated cellulose fabrics. These studies are indicative of the potential of BioMOF@cellulose fabric composites for the controlled delivery of bioactive molecules on the wound and/or cancer.
Subject(s)
Anti-Bacterial Agents/administration & dosage , Antineoplastic Agents/administration & dosage , Bandages , Cellulose/analogs & derivatives , Metal-Organic Frameworks/chemical synthesis , Animals , Anti-Bacterial Agents/pharmacology , Antineoplastic Agents/pharmacology , Cell Line, Tumor , Cell Survival/drug effects , Cotton Fiber , Drug Liberation , Iron/chemistry , Mice , Staphylococcus aureus/drug effects , Zinc/chemistryABSTRACT
In this study, the effect of using folic acid on the in situ synthesis process of nanostructures has been investigated. Folic acid, as a biotemplate for synthesis of Cu2 O/ZnO, was used to improve the reducing and stabilizing the ability of cotton fabric and avoid agglomeration of the particles. Scanning electron microscopy images revealed that using folic acid caused the formation of particles with smaller sizes on the cotton fabric and X-ray diffraction confirmed the same crystalline pattern of nanoparticles in comparison with the previous synthesis process. The effect of using this biotemplate on different properties of treated fabrics including UV-protection effect, hydrophilicity, crease recovery angle, softness, thickness and mechanical properties has been evaluated. The folic acid had a great influence on UV-protection effect, in synthesis procedure, decreasing the droplet absorption time, bending length and improving the wrinkle resistance and mechanical properties. Interestingly, the higher tensile strength of the treated cotton fabrics proved the incorporation of nanoparticles into the cotton fibers. An in situ, green and rapid method can be provided by using folic acid for the synthesis of the nanostructures with controlled size.