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The desire for sport products with enhanced performance and efficiency has been known for many years and nanotechnology has opened new routes for the production of functional sportswear. The objective of this paper is presenting an overview on applications of nanotechnology in different sport sections with the main emphasis on sport flooring, clothing and shoes. Some of the important features imparted into sport apparels by nanotechnology are also thoroughly discussed. Following the current trend sportswear of all types will experience the nanotechnology revolution, in the near future.

The chemical and physical effects of ultrasound with a frequency above 16kHz, higher than the audible frequency of the human ear, have proven to be a useful tool for variety of systems ranging from the application of ultrasound in environmental remediation to the cooperation of ultrasound waves with chemical processing regarding as sonochemistry. Ultrasound opened up new advances in textile wet processing including desizing, scouring, bleaching, dyeing, printing and finishing and also nanoprocessing including nanopretreatment, nanodyeing, nanoprinting and nanofinishing. Use of ultrasound appears to be a promising alternative technique to reduce energy, chemicals and time involved in various operations. Over the past years there has been an enormous effort on using sonochemistry for the synthesis of nanomaterials on various textile materials. In situ sonosynthesis of nanoparticles and nanocomposites on different textiles is a pioneering approach driving future investigations. With such wide range of applications and vast ever increasing publications, the objective of this paper is presenting a comprehensive review on ultrasound application in textile from early time to now by the main emphasis on the sonosynthesis of nanomaterials outlining directions toward future research.

A polyester fabric with durable photo-, bio-, and magneto-activities was prepared in a single-step process. In the proposed method alkali hydrolysis of polyester fabric was carried out along with the synthesis of the TiO 2 /Fe 3 O 4 /Ag nanocomposite, which enhanced the surface activity and nanoparticles adsorption, and produced ethylene glycol for reducing silver nitrate into nano-silver. The uniform distribution of the nanocomposite on the fiber surface was confirmed by FESEM and EDX. The fabrics showed an excellent photoactivity toward degradation of Methylene Blue under sunlight irradiation. The treated samples showed reasonable saturation magnetization and excellent antibacterial activity against Staphylococcus aureus and Escherichia coli. The tensile properties of the treated samples were enhanced as compared to the untreated fabric. Moreover, a central composite design based on response surface methodology was applied to study the influence of Fe 2+ /TiO 2 and Ag/TiO 2 molar ratio in the prepared nanocomposite, and the appropriate molar ratios for the best photoactivity were obtained.

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In this research, the effect of CO 2 laser on various properties of polyester fabric specially dyeing was studied. Three disperse dyes of red, yellow, and blue were used and irradiation was performed before and after dyeing. To evaluate the color changes due to laser treatment, CIELAB DE Ã ab color difference values were calculated. The morphology of the irradiated surfaces was examined by scanning electron microscopy. Other properties including color fastness, bending rigidity, wettability, and crystal size were also examined. The results revealed that laser treatment had an increasing effect on the color difference value. Among the three laser parameters examined in this work, laser power had the strongest effect. While no significant color fastness improvement with low laser intensity was observed, high-intensity laser irradiation increased the light and rubbing fastness. Properties such as wettability and bending rigidity were negatively affected by an increase in laser intensity.

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