Iranians add properties to cotton with nanobiotechnology

November 27, 2013 (Iran)

Iranian researchers from Islamic Azad University, Ardebil Branch, in association with their colleagues from Amir Kabir University of Technology presented a new and simple method for the completion of the process of production of cotton-based goods by using nanobiotechnology.    The method enables the production of cotton fibers with antibacterial and antifungal properties, and the clothes do not cause any side effect on human’s body due to their very low toxicity.   The aim of the research was to present a new and simple method forthe completion of textile products by using biotechnology and nanotechnology at the same time. To this end, enzymes such as cellulase, laccase and their mixture in addition to nanoclay were used in the completion of antibacterial cotton products painted by indigo, and the antibacterial and antifungal properties of the final product were investigated.   Results showed that the cotton fiber produced through this method has antibacterial and antifungal properties and it has high compatibility with human’s skin. In addition, since nanoclay was used in the bleaching and washing processes, the final product is bright and beautiful.   High softness and flexibility due to the elimination of lint from the surface of the product are among other desirable properties of the product. Because the three processes bleaching, enzyme washing, and antibacterial treatment occur at the same time, the consumed amount of energy is reduced by using this method.   Apart from the promising role of the modified nanoclay in the elimination of microorganisms, they act as adsorbent and therefore less polluted wastewater is created. Therefore, the presented method can be considered a simple and effective method to benefit from desirable and multipurpose properties in cotton fabrics.

Iran Nanotechnology Initiative Council