Eradication of Gram-negative bacteria by reusable carbon nitride-coated cotton under visible light

• Tipo: Artigo em Revista Científica Internacional
• Data: 2023

Autores

Barros, MA (Autor) Outra; Seabra, CL (Autor) Outra; Sampaio, M.J. (Autor) FEUP; Nunes, C (Autor) Outra; Claudia G Silva (Autor) FEUP; Reis, S (Autor) Outra; Faria, JL (Autor) Outra

Revista

Título: Applied Surface Science

Vol. 629

ISSN: 0169-4332

Editora: Elsevier

Indexação

ISI Web of Knowledge - 4 Citações

Scopus - 3 Citações

Outras Informações

ID Authenticus: P-00Y-B6Q

DOI: 10.1016/j.apsusc.2023.157311

Abstract (EN): A metal-free graphitic carbon nitride (GCN-T) photocatalyst obtained through a microwave-assisted technique was immobilised on cotton fabrics by an exhaustion method. Coated-cotton with only 0.81 % (w/w) of GCN-T (CO/GCN-T) presented effective antimicrobial properties against pathogenic bacteria, P. aeruginosa and E. coli, eradicating the retained bacteria after 60 min of direct irradiation with visible light. The self-cleaning activity of CO/GCN-T samples was also proved for the degradation of Rhodamine B (RhB) stains after 60 min of irradiation with a cost-effective Light Emitting Diode (LED) (lambda max = 417 nm). In addition, CO/GCN-T did not hinder the growth of commensal skin bacteria Staphylococcus spp. and presented non-cytotoxicity to skin cell lines, such as fibroblasts (L929) and keratinocytes (HaCaT), so it can be stated that these textiles are promising for applications in direct contact with the skin. Therefore, these are relevant findings since a textile substrate, with the ability to remove or eliminate harmful microorganisms, is an asset for the healthcare area.

Idioma: Inglês

Tipo (Avaliação Docente): Científica

Nº de páginas: 12