Novel optical sensing film based on a functional nonwoven nanofibre mat for an easy, fast and highly selective and sensitive detection of tryptamine in beer

Ramón‐Márquez, Teresa; Medina-Castillo, Antonio L.; Gutiérrez, Alberto Fernández; Fernández-Sánchez, Jorge F.

doi:10.1016/j.bios.2015.12.091

Cited by 45 publications

(9 citation statements)

References 47 publications

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“…Au nanoparticle-based (AuNP) colorimetric assays have been used for fast, cost-effective, and accurate analysis in environmental and biological samples [21][22][23][24][25][26]. In those approaches, AuNPs usually functionalized by specific ligands are monodispersed because of electrostatic exclusive force or steric hindrance.…”

Section: Electronic Supplementary Materialsmentioning

confidence: 99%

Visual and photometric determination of histamine using unmodified gold nanoparticles

et al. 2017

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The authors describe a colorimetric approach for on-site monitoring of histamine based on the use of gold nanoparticles (AuNPs) that have a negatively charged surface due to the presence of adsorbed citrate ions. Histamine has two basic functional groups, an aliphatic amino group and an imidazole ring. Under the experimental conditions, the protonated aliphatic amino group drives the imidazole ring into close proximity to the AuNPs due to electrostatic attraction. This accelerates the replacement of citrate ions by the imidazole ring because of the strong affinity between imidazole and AuNPs. As a consequence, the two groups synergistically induce the aggregation of the AuNPs and trigger a visible color change from red to blue. The minimum visually detectable histamine concentration is 1.81 μM, which is comparable to the limit of detection (LOD) of the electrochemical approaches at a signal-to-noise ratio of 3:1. When using absorbance at 522 nm, the LOD is lowered to 38 nM. The method was applied to the determination of histamine in fish samples.

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Section: Electronic Supplementary Materialsmentioning

confidence: 99%

Visual and photometric determination of histamine using unmodified gold nanoparticles

et al. 2017

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“…A commercial electrospun nanofiber mat (Tiss®-Link) was used as a support material for the direct highly selective and sensitive determination of tryptamine (LOD 6 ng/mL, LOQ 19 ng/mL) in beer [33]. Activated vinyl groups on the surface of the mat permit a fast covalent immobilization of tryptamine by means of a Michael-type reaction so to form the transduction system.…”

Section: Luminescence Readoutmentioning

confidence: 99%

Optical sensors for determination of biogenic amines in food

et al. 2020

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This review presents the state-of-the-art of optical sensors for determination of biogenic amines (BAs) in food by publications covering about the last 10 years. Interest in the development of rapid and preferably on-site methods for quantification of BAs is based on their important role in implementation and regulation of various physiological processes. At the same time, BAs can develop in different kinds of food by fermentation processes or microbial activity or arise due to contamination, which induces toxicological risks and food poisoning and causes serious health issues. Therefore, various optical chemosensor systems have been devised that are easy to assemble and fast responding and low-cost analytical tools. If amenable to on-site analysis, they are an attractive alternative to existing instrumental analytical methods used for BA determination in food. Hence, also portable sensor systems or dipstick sensors are described based on various probes that typically enable signal readouts such as photometry, reflectometry, luminescence, surface-enhanced Raman spectroscopy, or ellipsometry. The quantification of BAs in real food samples and the design of the sensors are highlighted and the analytical figures of merit are compared. Future instrumental trends for BA sensing point to the use of cell phone-based fully automated optical evaluation and devices that could even comprise microfluidic micro total analysis systems.

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“…Nanocomposites from metal oxides nanoparticles and polymer nanofiber are of great importance to researcher. Nanofibers from polymers have found various applications in the medical field such as in the detection of biological analytes [4], drug delivery [5], magnetic resonance imaging (MRI) [6], cancer therapy and diagnosis [7,8]. Other applications include; industrial, agricultural, environmental, and waste management.…”

Section: Introductionmentioning

confidence: 99%

Cyclic voltammetry, photocatalytic and antimicrobial comparative studies of fabrication Fe₃O₄ and Fe₃O₄/PAN nanofibers

Mogomotsi

Akinola

Emeka

et al. 2020

Mater. Res. Express

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This study reports the properties of green mediated synthesized iron oxides nanoparticles (Fe 3 O 4 NPs) from peel extracts of pomegranate plant and its polyacrylonitrile/iron oxide composite nanofibers (Fe 3 O 4 /PAN). The following were used to characterize the synthesized nanoparticles and its polymer nanofibers; FT-IR, UV-Visible spectroscopy, scanning electron microscope SEM, TEM and cyclic voltammetry. The antimicrobial activities of synthesized nanoparticles were investigated against selected bacterial pathogens. For the plant extract, FTIR revealed OH characteristics peaks at 3271 cm −1 and 1600 cm −1 while the absorption peaks at 577 and 430 cm 1 showed successful reduction of the precursor to Fe 3 O 4 nanoparticles. The SEM images showed a spherical morphology of Fe 3 O 4 and that of the composite with entrapped Fe 3 O 4 into the PAN nanofibers. Photocatalytic process showed that the synthesized Fe 3 O 4 nanoparticles has degradation efficiency of 71.36% and the nanofibers exhibited efficiency of 22.68% towards methylene blue (MB) dye. However, further kinetic analysis of the degradation process put Fe 3 O 4 /PAN nanofibers (NF) at a better correlation coefficient of 0.9239 than the Fe 3 O 4 nanoparticles. Electrochemical studies using cyclic voltammetry showed that PAN functionalized with Fe 3 O 4 is more electroactive as compared to the other electrodes studied. The anodic peak potential at 599 mV also confirmed the presence of Fe 3 O 4 in the nanocomposite Fe 3 O 4 /PAN. The antimicrobial studies revealed that as the concentration of the green mediated Fe 3 O 4 nanoparticle increases in the composite Fe 3 O 4 /PAN an excellent antimicrobial activity against selected pathogens were observed, showing Fe 3 O 4 nanoparticles potentials to control pathogens of public health significance.

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Novel optical sensing film based on a functional nonwoven nanofibre mat for an easy, fast and highly selective and sensitive detection of tryptamine in beer

Cited by 45 publications

References 47 publications

Visual and photometric determination of histamine using unmodified gold nanoparticles

Visual and photometric determination of histamine using unmodified gold nanoparticles

Optical sensors for determination of biogenic amines in food

Cyclic voltammetry, photocatalytic and antimicrobial comparative studies of fabrication Fe₃O₄ and Fe₃O₄/PAN nanofibers

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Novel optical sensing film based on a functional nonwoven nanofibre mat for an easy, fast and highly selective and sensitive detection of tryptamine in beer

Cited by 45 publications

References 47 publications

Visual and photometric determination of histamine using unmodified gold nanoparticles

Visual and photometric determination of histamine using unmodified gold nanoparticles

Optical sensors for determination of biogenic amines in food

Cyclic voltammetry, photocatalytic and antimicrobial comparative studies of fabrication Fe3O4 and Fe3O4/PAN nanofibers

Contact Info

Product

Resources

About

Cyclic voltammetry, photocatalytic and antimicrobial comparative studies of fabrication Fe₃O₄ and Fe₃O₄/PAN nanofibers