2026-10-13T02:37:38Zhttps://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

Parra de la Parra, Sandra de la Miguel, Álvaro Fernández Pampín, Natalia Rumbo Lorenzo, Carlos García Pérez, José Miguel Arnáiz Alonso, Ana Trigo López, Miriam 2024-07-05T09:27:40Z 2024-07-05T09:27:40Z 2024-02-07 1944-8244 http://hdl.handle.net/10259/9346 10.1021/acsami.3c17919 1944-8252 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. This work was supported by the Regional Government of Castilla y León (Junta de Castilla y León), the Ministry of Science and Innovation MICIN and the European Union NextGenerationEU/PRTR, and the Spanish Agencia Estatal de Investigación (State Research Agency). We also gratefully acknowledge the financial support provided by Fondo Europeo de Desarrollo Regional-European Regional Development Fund (FEDER, ERDF) and Regional Government of Castilla y León-Consejería de Educación, Junta de Castilla y León (Grant BU025P23). Author M. Trigo-López received Grant PID2019-108583RJ-I00, and author J. M. García received Grant PID2020-113264RB-I00, both funded by MCIN/AEI/10.13039/501100011033. Ana Arnaiz and Álvaro Miguel received funding from Ministerio de Universidades-European Union in the frame of NextGenerationEU RD 289/2021 (Universidad Politécnica de Madrid) and Grant CA1/RSUE/2021-00409 by the Universidad Autónoma de Madrid, respectively. application/pdf eng ACS Publications ACS Applied Materials & Interfaces. 2024, V. 16, n. 7, p. 9293-9302 https://doi.org/10.1021/acsami.3c17919 Atribución 4.0 Internacional http://creativecommons.org/licenses/by/4.0/ info:eu-repo/semantics/openAccess Aramids High-performance polymers Advanced functionalities Bactericide Textile Química analítica Polímeros Química orgánica Chemistry, Analytic Polymers Chemistry, Organic High-Performance Aramids with Intrinsic Bactericide Activity info:eu-repo/semantics/article info:eu-repo/semantics/publishedVersion ACS Applied Materials & Interfaces 16 7 9293 9302