This work reports on the application of solar-activated photocatalytic thin films that
allow the controlled-release of volatile agents (e.g., insecticides, repellents) from the interior of
adsorbed polymeric microcapsules. In order to standardize the tests,a quantification of the
inherent controlled-release of a particular volatile agent is determined by gas chromatography
coupled to mass spectroscopy, so that an application can be offered to a wide range of supports
from various industrial sectors, such as in textiles (clothing, curtains, mosquito nets). This
technology takes advantage of the established photocatalytic property of titanium dioxide
(TiO2) for the use as an active surface/site to promote the controlled-release of a specific vapor
(volatile agentfrom within the aforementioned microcapsules.Portuguese FCT COMPETE scientific
programs, with references NANO/NTec-CA/0046/2007 and PTDC/CTM-NAN/119979/201