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

• Type: Article in International Scientific Journal
• Date: 2023

Authors

Barros, MA (Author) Other; Seabra, CL (Author) Other; Sampaio, M.J. (Author) FEUP; Nunes, C (Author) Other; Claudia G Silva (Author) FEUP; Salette Reis (Author) FFUP; Joaquim Luís Faria (Author) FEUP

Journal

Title: Applied Surface Science

Vol. 629

ISSN: 0169-4332

Publisher: Elsevier

Indexing

ISI Web of Knowledge - 4 Citations

Scopus - 4 Citations

Associated Projects

ClimActiC - ClimActiC - CidadaniaPeloClima: Criando Pontes entre Cidadania e Ciência para a Adaptação Climática

LA LSRE-LCM - Financiamento Plurianual 2020-2023 para a Unidade LA LSRE-LCM Laboratório de Processos de Separação e Reacção - Laboratório de Catálise e Materiais

Other information

Authenticus ID: 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.

Language: English

Type (Professor's evaluation): Scientific

No. of pages: 12