Iranian Journal of Textile Nano-bio Modification
Volume:2 Issue: 1, Mar 2023

Oily compounds threat people’s health and aquatic life due to their toxic nature. In this project, surfactant grafted functionalized mesoporous silica nanofiber with the aim of separating the oil spillage was synthesized. Firstly, the electrospun mesoporous silica nanofiber was functionalized by [3-(2, 3- Epoxypropoxy)-propyl]-trimethoxysilane in an alkali condition. Secondly, the 4-nonylphenol as a surfactant was grafted onto the surface of functionalized mesoporous silica nanofiber. The grafting yield of surfactant on the surface of functionalized mesoporous silica nanofiber was evaluated. Then by using the BET analysis, the nanofibre surface area was investigated, and finally, optimum conditions with respect to the grafting yield of 4-nonylphenol and BET analysis were reported. In order to characterize the synthesized nanofibers, FTIR, SEM, and AFM analyses were used. The pore size distribution of synthesized nanofibers was investigated by the BJH method.The results showed that the [3-(2, 3- Epoxypropoxy)-propyl]-trimethoxysilane and surfactant were attached to the nanofiber surface through the covalent linkages. SEM images exhibited the deposition of a dense layer on the surface of grafted nanofibers. Moreover, AFM analysis revealed that the surface of the nanofiber became rough after the functionalization and grafting processes. In order to evaluate the superhydrophobic properties of nanofibers, contact angle analyses were investigated. The synthesized absorbent showed a high absorption capacity of 128.1 and 102.3 g/g for heavy motor oil and diesel fuel, respectively. The absorbed oil was easily removed by vacuum filtration and the nanofiber could be reused for several cycles while keeping high absorption capacity

The main objective of present work was improvement in flame retardancy (FR) of polyester fabric using modified clay as green flame retardant. Achieving mentioned purpose, first polyester fabric was alkaline treated then nanoclay was modified with chitosan to form organo-clay and used as FR finish to coat samples. The water absorption and bending resistance of pristine polyester, alkaline and modified clay-treated polyester were also measured to investigate physical properties of samples. Modified clay and surface treated polyester fabrics were characterized using X-ray diffraction (XRD), Fourier Transform Infrared spectrometer (FTIR/ATR) and scanning electron microscopy (SEM). It was concluded that chitosan- modified clay treatment has improving effect on flame retardancy of polyester samples through increase in limiting oxygen index (LOI), char yield and decrease in melt dripping while burning.Key Words: chitosan, nanoclay, polyester, alkaline treatment, Flame retardancy

Based on healthy properties of gelatin, strengthening it for using as multi functional material is essential. In this paper nano scaffold of gelatin was doped with nano zinc oxide (ZnO) (with different percent) and electrospun. The morphology of obtained nano scaffold was study by Field Emission Scanning Electron Microscope (F E S E M) and elemental mapping proved the present and distribution of nano zinc oxide (ZnO) in scaffold. Also, X ray Fluorescence (XRF) test was done to confirm the amount of used nano material. The anti bacterial property of the obtained scaffold was investigated against both gram negative and gram positive bacteria (Shigella and Staphylococcus Aureus respectively) and the results show that the nano scaffold has more than 96% anti bacterial property. On the other hands, the anti inflammatory effect of nano scaffold was investigated on rats and the results illustrated that nano scaffold is effective for edema decrease.

Clothing has been with humans in sync with human civilization, and the development of societies and civilizations has drastically changed it. Clothing reflects the culture of the people ofa country and region and can be a means of cultural invasion and influence of other cultures. Iran has a history as old as the history of its people. Cultural richness can be found in any region of this country. The diverse clothing can be seen in different regions of Iran by looking at different tribes, cities, and provinces of the country. Besides, traditional Iranian clothes represent the art and culture of their region. Today, traditional clothes are less popular among people than in the past due to the societies urbanization . So, clothing designers are obliged to present new designs to the market that match the taste and fashion of present generation. In this study, women's vests and shirts are designed by combining the clothing of Central American women, Panama, called Mola, and the traditional clothing of Iranian women. It can be argued that the resulting designs are diverse and can inspire new ideas in the minds of the audience and clothing designers. According to the results, modern traditional arts can be integrated with Iranian traditional arts and new ideas and suitable clothes can be introduced to the audience if it is based on a correct understanding of clothing and fabric design.Clothing has been with humans in sync with human civilization, and the development of societies and civilizations has drastically changed it. Clothing reflects the culture of the people ofa country and region and can be a means of cultural invasion and influence of other cultures. Iran has a history as old as the history of its people. Cultural richness can be found in any region of this country. The diverse clothing can be seen in different regions of Iran by looking at different tribes, cities, and provinces of the country. Besides, traditional Iranian clothes represent the art and culture of their region. Today, traditional clothes are less popular among people than in the past due to the societies urbanization . So, clothing designers are obliged to present new designs to the market that match the taste and fashion of present generation. In this study, women's vests and shirts are designed by combining the clothing of Central American women, Panama, called Mola, and the traditional clothing of Iranian women. It can be argued that the resulting designs are diverse and can inspire new ideas in the minds of the audience and clothing designers. According to the results, modern traditional arts can be integrated with Iranian traditional arts and new ideas and suitable clothes can be introduced to the audience if it is based on a correct understanding of clothing and fabric design.

In this study, a new finishing technique is introduced through treatment of wool fabric with reduced graphene oxide/ZnO nanocomposite. Graphene oxide was coated on to wool fabric by dipping the fabric in graphene oxide solution and drying in an oven. The nanocomposite was synthesized on wool fabric in a single step by reduction of zinc acetate and graphene oxide with sodium hydroxide in the impregnation bath. The homogenous distribution of the reduced graphene oxide/zinc oxide nanocomposite on the fiber surface was confirmed by field emission scanning electron microscopy (FE-SEM), Energy-dispersive X-ray spectroscopy (EDS) and X-ray mapping. X-ray diffraction patterns proved the presence of zinc oxide nanoparticles on the treated wool fabric. Also, the defect analysis based on X-ray photoelectron spectroscopy (XPS) established the composition of the nanocomposite. Other characteristics of treated fabrics such as antibacterial activity, photo-catalytic self-cleaning, electrical resistance, ultraviolet (UV) blocking activity and cytotoxicity were also assessed. The treated wool fabrics possess significant antibacterial activity and photo-catalytic self-cleaning property by degradation of methylene blue under sunlight irradiation. Moreover, this process has no negative effect on cytotoxicity of the treated fabric even reduces electrical resistance and improves UV blocking activity.