Determination of antioxidant capacity of capsule loaded textiles

In this study, microcapsules containing α-Tocopherol (α-TP) have been prepared by complex coacervation technique and applied to cotton fabric by padding method. Characterization of the capsules is determined by scanning electron microscopy, thermogravimetric analysis, fourier transform infrared spectroscopy and particle size measurement. Yield of microencapsulation process is found in the range of 41.63 - 62.20%. Antioxidant capacity of capsule loaded textiles has been examined according to DPPH free radical scavenging method, and α-TP existence in ethyl cellulose capsules is found as 65.218 - 330.722 µM. α-TP activity in capsule treated fabric is determined as 61.73 µg. Presence of the capsules on fabric and also α-TP activity has been found to remain effective even after twenty washes at 40°C

Micro- and nano-encapsulation of limonene and permethrin for mosquito repellent finishing of cotton textiles

TURKOGLU, Gizem Ceylan/0000-0001-5809-0916; Erkan, Gokhan/0000-0002-2239-9556WOS: 000519929100004The aim of this study was to prepare mosquito repellent textiles. To compare bio-based and synthetic mosquito repellent agents, limonene and permethrin were encapsulated with ethyl cellulose shell. Coacervation was employed, which is a simple and reproducible method for the encapsulation with high production efficiency. Morphological assessment showed that the capsules had smooth surfaces and their shape was spherical. the homogenous size distribution of the capsules was supported by laser diffraction analysis. the capsules showed narrow size distribution and the mean particle size of the optimum formulations for limonene and permethrin was 1 and 1.3 mu m, respectively. the size of the produced capsules was considered suitable for textile applications. the FTIR spectra revealed the similarity of the chemical structure of capsules with shell material. Cotton fabrics were treated separately with limonene and permethrin capsules by padding method. the presence of capsules on the fabrics was determined after 20 washing cycles. Insecticide activity was evaluated against common house mosquitoes (Culex pipiens), with respect to cone bioassay of World Health Organization (WHO). Mosquitoes were tended to stay away from treated fabrics, and mortality rates of mosquitos were noted as 41% and 54% for limonene and permethrin, respectively. Although efficacy of fabrics decreased with increasing washing, the fabrics still showed repellency after 20 washing cycles. This study showed that the developed product might be used as an alternative to the other products in the market for avoiding mosquito-borne diseases

Determination of antioxidant capacity of capsule loaded textiles

189-195In this study, microcapsules containing α-Tocopherol (α-TP) have been prepared by complex coacervation technique and applied to cotton fabric by padding method. Characterization of the capsules is determined by scanning electron microscopy, thermogravimetric analysis, fourier transform infrared spectroscopy and particle size measurement. Yield of microencapsulation process is found in the range of 41.63 - 62.20%. Antioxidant capacity of capsule loaded textiles has been examined according to DPPH free radical scavenging method, and α-TP existence in ethyl cellulose capsules is found as 65.218 - 330.722 µM. α-TP activity in capsule treated fabric is determined as 61.73 µg. Presence of the capsules on fabric and also α-TP activity has been found to remain effective even after twenty washes at 40°C

Determination of antioxidant capacity of capsule loaded textiles

WOS: 000405059100010In this study, microcapsules containing alpha-Tocopherol (alpha-TP) have been prepared by complex coacervation technique and applied to cotton fabric by padding method. Characterization of the capsules is determined by scanning electron microscopy, thermogravimetric analysis, fourier transform infrared spectroscopy and particle size measurement. Yield of microencapsulation process is found in the range of 41.63 - 62.20%. Antioxidant capacity of capsule loaded textiles has been examined according to DPPH free radical scavenging method, and alpha-TP existence in ethyl cellulose capsules is found as 65.218 - 330.722 mu M. alpha-TP activity in capsule treated fabric is determined as 61.73 mu g. Presence of the capsules on fabric and also alpha-TP activity has been found to remain effective even after twenty washes at 40 degrees C.Organik Kimya Sanayi ve Tic. A.S. [00783.STZ.2011-1]; Ministry of Science, Industry and Technology, Republic of TurkeyMinistry of Science, Industry & Technology - Turkey [00783.STZ.2011-1]Authors thankfully acknowledge funding support (00783.STZ.2011-1) by Organik Kimya Sanayi ve Tic. A.S. and, Ministry of Science, Industry and Technology, Republic of Turkey