Utilize este identificador para referenciar este registo:
https://hdl.handle.net/1822/76674
Título: | Flexible TiCux thin films with dual antimicrobial and piezoresistive characteristics |
Autor(es): | Ferreira, Armando Fernandes, Margarida Maria Macedo Souza, Arthur L. R. Correa, Marcio A. Lanceros-Méndez, S. Vaz, F. |
Palavras-chave: | Antimicrobial Gauge factor Titanium-copper Pressure sensing PVD-GLAD |
Data: | 16-Fev-2022 |
Editora: | American Chemical Society |
Revista: | ACS Applied Bio Materials |
Citação: | Ferreira, Armando; Fernandes, Margarida; Souza, Arthur L. R.; Correa, Marcio A.; Lanceros-Mendez, Senentxu; Vaz, Filipe, Flexible TiCux thin films with dual antimicrobial and piezoresistive characteristics. ACS Applied Bio Materials, 5(3), 1267-1272, 2022 |
Resumo(s): | The eradication of microorganisms from high traffic surfaces to prevent either viral or bacterial infections represents an urgent need, mainly in the scope of the present pandemic scenario. In this context, this work explores the dual functionality of titaniumcopper thin films as pressure elements with antimicrobial properties, aiming for the implementation of touch and sensing capabilities in high traffic surfaces. Copper was employed as the antibacterial agent within a titanium matrix. The films geometry and deposition parameters were varied in order to optimize antimicrobial and piezoresistive response. A considerable antimicrobial response has been obtained, increasing the copper amount (from 23 to 63 at. %) in the titanium matrix, leading to an outstanding 8 log10 CFU bacterial reduction in the case of Escherichia coli. Moreover, for the same amount of copper, the piezoresistive sensibility of the thin films increases up to a maximum gauge factor of 5.18 ± 0.09, which indicates an adequate electromechanical behavior for sensing applications. Our findings demonstrate the best combined antimicrobial and piezoresistive characteristics for the films with a Cu content of 63 at. %, indicating a potential use of these films for electromechanical sensor applications. |
Tipo: | Artigo |
URI: | https://hdl.handle.net/1822/76674 |
DOI: | 10.1021/acsabm.1c01273 |
ISSN: | 2576-6422 |
Versão da editora: | https://doi.org/10.1021/acsabm.1c01273 |
Arbitragem científica: | yes |
Acesso: | Acesso restrito UMinho |
Aparece nas coleções: | CEB - Publicações em Revistas/Séries Internacionais / Publications in International Journals/Series |
Ficheiros deste registo:
Ficheiro | Descrição | Tamanho | Formato | |
---|---|---|---|---|
document_55348_1.pdf Acesso restrito! | 502,08 kB | Adobe PDF | Ver/Abrir |