CEPAVE   05420
CENTRO DE ESTUDIOS PARASITOLOGICOS Y DE VECTORES
Unidad Ejecutora - UE
congresos y reuniones científicas
Título:
Microencapsulated essential oils for mosquito repellent finishing of textiles
Autor/es:
M. M. MIRÓ SPECOS; JUAN J. GARCIA; E. MUTTIS; P. MARINO; L. G. HERMIDA
Lugar:
Mulhouse
Reunión:
Congreso; 11 th World textile conference; 2011
Resumen:
Microcapsules containing mosquito repellent essential oil were prepared by complex coacervation and applied to fabrics. Two essential oils, citronella and citriodiol were encapsulated and applied to fabrics by padding or spradying. The presence of microcapsules on textiles was assessed by scanning electron microscopy. Repellent activity was monitored by exposure to Aedes aegypti mosquitoes of a human hand and arm covered with the treated fabrics. Cotton fabrics padded with microencapsulated citronella presented 80 % repellency for two weeks, while repellency for fabrics padded with microencapsulated citriodiol was higher than 95 % after more than a month. Both citronella and citriodiol treated fabrics stored in semi-hermetic bags retained 100 % repellency for more than six month. The repellent effect could be recharged on fabrics by spraying a suspension of microcapsules on it, prolonging the protection against mosquito bites. These repellent fabrics may constitute an alternative for the control of disesases such as dengue and yellow fever caused by vectors in rural areas of developing countries.