2026-05-14T10:51:02Zhttps://riubu.ubu.es/oai/request

oai:riubu.ubu.es:10259/93462024-07-06T00:05:14Zcom_10259_4313com_10259_5086com_10259_2604com_10259_6168col_10259_4314col_10259_6169

00925njm 22002777a 4500 dc Parra de la Parra, Sandra de la author Miguel, Álvaro author Fernández Pampín, Natalia author Rumbo Lorenzo, Carlos author García Pérez, José Miguel author Arnáiz Alonso, Ana author Trigo López, Miriam author 2024-02-07 Aramids, renowned for their high-performance attributes, find applications in critical fields such as protective equipment, aerospace components, and industrial filters. However, challenges arise in scenarios in which frequent washing is impractical, leading to bacterial proliferation, especially in textiles. This study outlines a straightforward and scalable method for preparing aramid-coated textiles and films endowed with inherent bactericidal activity, achieved by reacting parent aramids with vanillin. The functionalization of the aramids with bactericide moieties not only preserved the high-performance characteristics of commercial aramids but also improved their crucial mechanical properties. Tensile tests revealed an increase in Young’s modulus, up to 50% compared to commercial m-aramid, accompanied by thermal performance comparable to commercial m-aramids. The evaluation of these coated textiles as bactericidal materials demonstrated robust effectiveness with A parameters (antibacterial activity) of 4.31 for S. aureus and 3.44 for K. pneumoniae. Reusability tests (washing the textiles in harsh conditions) underscored that the bactericide-coated textiles maintain their performance over at least 5 cycles. Regarding practical applications, tests performed with reconstructed human epidermis affirmed the nonirritating nature of these materials to the skin. The distinctive qualities of these metal-free intrinsic bactericidal aramids position them as ideal candidates for scenarios demanding a synergy of high performance and bactericidal properties. Applications such as first responders’ textiles or filters stand to benefit significantly from these advanced materials. 1944-8244 http://hdl.handle.net/10259/9346 10.1021/acsami.3c17919 1944-8252 Aramids High-performance polymers Advanced functionalities Bactericide Textile High-Performance Aramids with Intrinsic Bactericide Activity