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Sensors 2017, 17(9), 2134;

Development of a Textile Nanocomposite as Naked Eye Indicator of the Exposition to Strong Acids

Instituto Interuniversitario de Investigación de Reconocimiento Molecular y Desarrollo Tecnológico, 46022 Valencia, Spain
CIBER de Bioingeniería, Biomateriales y Nanomedicina (CIBER-BBN), 46022 Valencia, Spain
Departamento de Química Inorgánica, Universitat de València, Doctor Moliner 50, Burjassot, 46100 Valencia, Spain
Author to whom correspondence should be addressed.
Received: 23 August 2017 / Revised: 11 September 2017 / Accepted: 12 September 2017 / Published: 16 September 2017
(This article belongs to the Section Chemical Sensors)
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Chemical burns, mainly produced by acids, are a topic of concern. A new sensing material for the detection of strong acids able to be incorporated into textiles has been developed. The material is prepared by the covalent attachment of 2,2′,4,4′,4″-pentamethoxy triphenyl methanol to a mesoporous material which further is included in a nitro resin to obtain a colourless composite. The response of this composite to diverse acid solutions was tested showing the appearance of an intense purple colour (with a colour difference higher than 160) that can be monitored by the naked eye or could be easily digitised to feed an instrumental sensor. Reversibility and resistance to washing cycles were studied with positive results. Finally, the response of the sensing composite to acid vapours was assayed, observing a colour change similar to that found in solution. View Full-Text
Keywords: sensor; indicator; mesoporous material; colour; strong acid; textile sensor; indicator; mesoporous material; colour; strong acid; textile

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Pallás, I.; Marcos, M.D.; Martínez-Máñez, R.; Ros-Lis, J.V. Development of a Textile Nanocomposite as Naked Eye Indicator of the Exposition to Strong Acids. Sensors 2017, 17, 2134.

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