Sonochemical coating of Prussian Blue for the production of smart bacterial-sensing hospital textiles

Ferrer-Vilanova, Amparo; Alonso, Yasmine; Dietvorst, Jiri; Pérez-Montero, Marta; Rodríguez‐Rodríguez, Rosalía; Ivanova, Kristina; Tzanov, Tzanko; Vigués, Núria; Mas, Jordi; Guirado, Gonzalo; Muñoz-Berbel, Xavier

doi:10.1016/j.ultsonch.2020.105317

Cited by 26 publications

(25 citation statements)

References 44 publications

(24 reference statements)

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“…Here, 720 nm is the wavelength specific to the absorbance of PB. 31 , 34 Captured bacteria on the filter paper were detected by colorimetric analysis. After the filtration step, filter papers were dipped into 5 mL of a solution containing 625 μL each of 2.5 mM ammonium ferric citrate and 0.625 mM potassium hexacyanoferrate in MH media (referred to as PB solution).…”

Section: Methodsmentioning

confidence: 99%

“…Our previous work has shown that using simply visible light illumination, provided by an artificial light source, the iron molecules uncouple from the citrate, freeing it for Prussian blue formation. 31 , 33 , 34 If incubated with selected concentrations of antibiotics, bacterial susceptibility and/or resistance could also be determined with the same protocol. The sepsis kit is tested in the bacterial suspension of E. coli ATCC 25922 and Staphylococcus capitis ( Staph ) in a culture medium and blood.…”

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confidence: 99%

“…The bond between iron and citrate cannot be spontaneously broken by the presence of ferrocyanide or bacteria but requires light activation. Our previous work has shown that using simply visible light illumination, provided by an artificial light source, the iron molecules uncouple from the citrate, freeing it for Prussian blue formation. ,, If incubated with selected concentrations of antibiotics, bacterial susceptibility and/or resistance could also be determined with the same protocol. The sepsis kit is tested in the bacterial suspension of E.…”

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confidence: 99%

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Toward Rapid Detection of Viable Bacteria in Whole Blood for Early Sepsis Diagnostics and Susceptibility Testing

et al. 2021

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Sepsis is a serious bloodstream infection where the immunity of the host body is compromised, leading to organ failure and death of the patient. In early sepsis, the concentration of bacteria is very low and the time of diagnosis is very critical since mortality increases exponentially with every hour after infection. Common culture-based methods fail in fast bacteria determination, while recent rapid diagnostic methods are expensive and prone to false positives. In this work, we present a sepsis kit for fast detection of bacteria in whole blood, here achieved by combining selective cell lysis and a sensitive colorimetric approach detecting as low as 10 3 CFU/mL bacteria in less than 5 h. Homemade selective cell lysis buffer (combination of saponin and sodium cholate) allows fast processing of whole blood in 5 min while maintaining bacteria alive (100% viability). After filtration, retained bacteria on filter paper are incubated under constant illumination with the electrochromic precursors, i.e., ferricyanide and ferric ammonium citrate. Viable bacteria metabolically reduce iron(III) complexes, initiating a photocatalytic cascade toward Prussian blue formation. As a proof of concept, we combine this method with antibiotic susceptibility testing to determine the minimum inhibitory concentration (MIC) using two antibiotics (ampicillin and gentamicin). Although this kit is used to demonstrate its applicability to sepsis, this approach is expected to impact other key sectors such as hygiene evaluation, microbial contaminated food/beverage, or UTI, among others.

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Section: Methodsmentioning

confidence: 99%

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confidence: 99%

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confidence: 99%

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Toward Rapid Detection of Viable Bacteria in Whole Blood for Early Sepsis Diagnostics and Susceptibility Testing

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“…Wool and silk as well as cotton and flax, as protein- and cellulose- based natural fibres respectively, are mostly used in apparels and home furnishings due to their unique advantages, including biocompatibility, biodegradability, and hydrophilicity [ 101 ]. With the increasing demand for high-performance materials, to be used besides apparel and home-furnishing applications, also for the technical textiles market [ 102 , 103 , 104 ], thermoplastic synthetic fibres are also extensively used. Polyester, polyamide, acrylic, and even to some extent polypropylene, have dominated the fibre market since the mid-1990s when they overtook cotton volumes [ 49 ].…”

Section: Flame-retardant Coatingsmentioning

confidence: 99%

Nanostructured Surface Finishing and Coatings: Functional Properties and Applications

et al. 2021

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This review presents current literature on different nanocomposite coatings and surface finishing for textiles, and in particular this study has focused on smart materials, drug-delivery systems, industrial, antifouling and nano/ultrafiltration membrane coatings. Each of these nanostructured coatings shows interesting properties for different fields of application. In this review, particular attention is paid to the synthesis and the consequent physico-chemical characteristics of each coating and, therefore, to the different parameters that influence the substrate deposition process. Several techniques used in the characterization of these surface finishing coatings were also described. In this review the sol–gel method for preparing stimuli-responsive coatings as smart sensor materials is described; polymers and nanoparticles sensitive to pH, temperature, phase, light and biomolecules are also treated; nanomaterials based on phosphorus, borates, hydroxy carbonates and silicones are used and described as flame-retardant coatings; organic/inorganic hybrid sol–gel coatings for industrial applications are illustrated; carbon nanotubes, metallic oxides and polymers are employed for nano/ultrafiltration membranes and antifouling coatings. Research institutes and industries have collaborated in the advancement of nanotechnology by optimizing conversion processes of conventional materials into coatings with new functionalities for intelligent applications.

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“…Wool and silk as well as cotton and flax, as protein-and cellulose-based natural fibres respectively, are mostly used in apparels and home furnishings, due to their unique advantages, including biocompatibility, biodegradability, and hydrophilicity [97]. With the increasing demand for highperformance materials, to be used besides apparel and home-furnishing applications, also for the technical textiles market [98][99] [100], thermoplastic synthetic fibres are also extensively used. Polyester, polyamide, acrylic, and even to some extent polypropylene, have dominated the fibre market since the mid-1990s when they overtook cotton volumes [43].…”

Section: Flame Retardant Coatingsmentioning

confidence: 99%

Nanostructured Surface Finishing and Coatings: Functional Properties and Applications

Ielo

Giacobello

Sfameni

et al. 2021

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This review presents current literature on different nanocomposites coatings and surface finishing for different substrates (such as textiles, concrete, plastics, stones, metals and so on). In particular, this study is focused on smart materials, drug delivery systems, and industrial, antifouling and nano/ultrafiltration membrane coatings. Each of these nanostructured coatings shows interesting properties for different fields of application. In this review, particular attention is paid to the synthesis and the consequent physico-chemical characteristics of each coating and, therefore, to the different parameters that influence the substrate deposition process. Several techniques used in the characterization of these surface finishing coatings are also described. In this review, the sol-gel and polymerization method for preparing stimuli-responsive coatings as smart sensor materials is described; functional polymers and nanoparticles sensitive to pH, temperature, phase, light and biomolecules are also treated. Finally, nanomaterials based on phosphorus, borates, hydroxy carbonates and silicones are used and described as flame retardant coatings; organic/inorganic hybrid sol-gel coatings for industrial applications are illustrated, together with functional nanofiller (carbon nanotubes, metallic oxides, etc.) and polymers employed for nano/ultrafiltration membrane and antifouling coatings. In the last decades, several research institutes and industries have collaborated for the advancement of nanotechnology by optimizing conversion processes of conventional materials into coatings with new functionalities for intelligent, innovative, eco-sustainable and advanced applications.

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Sonochemical coating of Prussian Blue for the production of smart bacterial-sensing hospital textiles

Cited by 26 publications

References 44 publications

Toward Rapid Detection of Viable Bacteria in Whole Blood for Early Sepsis Diagnostics and Susceptibility Testing

Toward Rapid Detection of Viable Bacteria in Whole Blood for Early Sepsis Diagnostics and Susceptibility Testing

Nanostructured Surface Finishing and Coatings: Functional Properties and Applications

Nanostructured Surface Finishing and Coatings: Functional Properties and Applications

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