Sonochemical coating of Prussian Blue for the production of smart bacterial-sensing hospital textiles
Ferrer-Vilanova, Amparo (Institut de Microelectrònica de Barcelona)
Alonso, Yasmine (Universitat Autònoma de Barcelona. Departament de Química)
Dietvorst, Jiri (Institut de Microelectrònica de Barcelona)
Pérez-Montero, Marta (Universitat Internacional de Catalunya)
Rodríguez-Rodríguez, Rosalía (Universitat Internacional de Catalunya)
Ivanova, Kristina (Universitat Politècnica de Catalunya)
Tzanov, Tzanko (Universitat Politècnica de Catalunya)
Vigués, Núria (Universitat Autònoma de Barcelona. Departament de Genètica i de Microbiologia)
Mas Gordi, Jordi (Universitat Autònoma de Barcelona. Departament de Genètica i de Microbiologia)
Guirado López, Gonzalo (Universitat Autònoma de Barcelona. Departament de Química)
Muñoz Berbel, Xavier (Institut de Microelectrònica de Barcelona)

Date:	2021
Abstract:	In healthcare facilities, environmental microbes are responsible for numerous infections leading to patient's health complications and even death. The detection of the pathogens present on contaminated surfaces is crucial, although not always possible with current microbial detection technologies requiring sample collection and transfer to the laboratory. Based on a simple sonochemical coating process, smart hospital fabrics with the capacity to detect live bacteria by a simple change of colour are presented here. Prussian Blue nanoparticles (PB-NPs) are sonochemically coated on polyester-cotton textiles in a single-step requiring 15 min. The presence of PB-NPs confers the textile with an intensive blue colour and with bacterial-sensing capacity. Live bacteria in the textile metabolize PB-NPs and reduce them to colourless Prussian White (PW), enabling in situ detection of bacterial presence in less than 6 h with the bare eye (complete colour change requires 40 h). The smart textile is sensitive to both Gram-positive and Gram-negative bacteria, responsible for most nosocomial infections. The redox reaction is completely reversible and the textile recovers its initial blue colour by re-oxidation with environmental oxygen, enabling its re-use. Due to its simplicity and versatility, the current technology can be employed in different types of materials for control and prevention of microbial infections in hospitals, industries, schools and at home.
Grants:	Ministerio de Economía y Competitividad CTQ2015-65439-R Agencia Estatal de Investigación PID2019-106171RB-I00 European Commission 72085
Rights:	Aquest document està subjecte a una llicència d'ús Creative Commons. Es permet la reproducció total o parcial, la distribució, i la comunicació pública de l'obra, sempre que no sigui amb finalitats comercials, i sempre que es reconegui l'autoria de l'obra original. No es permet la creació d'obres derivades.
Language:	Anglès
Document:	Article ; recerca ; Versió publicada
Subject:	Sonochemical coating ; Smart textiles ; Bacterial detection ; Prussian Blue ; Metabolic indicators ; Hospital acquired infections
Published in:	Ultrasonics sonochemistry, Vol. 70 (January 2021) , art. 105317, ISSN 1873-2828

DOI: 10.1016/j.ultsonch.2020.105317
PMID: 32891882

9 p, 6.6 MB

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Research literature > UAB research groups literature > Research Centres and Groups (research output) > Experimental sciences > Group in Electrochemistry, Photochemistry and Organic Reactivity (GEFRO)
Articles > Research articles
Articles > Published articles