Graphene–polyamidoamine dendrimer–Pt nanoparticles hybrid nanomaterial for the preparation of mediatorless enzyme biosensor

Araque, Elena; Arenas, Christian B.; Gamella, María; Reviejo, A.J.; Villalonga, Reynaldo; Pingarrón, José M.

doi:10.1016/j.jelechem.2014.01.016

Cited by 46 publications

(20 citation statements)

References 32 publications

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“…Rely on their large numbers of terminal functional groups, PAMAM can greatly increase the quantity of attached various biomolecules such as antibody, enzyme, or aptamer, and consequently improve sensitivity of detection (Akter, Jeong, Lee, Choi, & Rahman, 2017;Malvano, Albanese, Pilloton, & Matteo, 2017;Miodek, Omrani, Khoder, & Youssoufi, 2016). Meanwhile, it was also extensively applied in electrochemical sensor in order to additionally amplify the sensitivity and reach a low detection limit through association with others conductive nanomaterials such as AuNPs, Ag nanoparticles, grapheme, and so on (Araque et al, 2014;Karadag, Geyik, Demirkol, Ertas, & Timur, 2013;Ning, Zhang, & Zheng, 2014). However, to the best of our knowledge, it has rarely been used as a sensitization medium in lateral flow strip for the signal-enhancement process (Shen, Xu, Gurung, Yang, & Liu, 2013).…”

Section: Introductionmentioning

confidence: 99%

A signal-enhanced lateral flow strip biosensor for ultrasensitive and on-site detection of bisphenol A

Peng

Kang

Pang

et al. 2017

Food and Agricultural Immunology

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A signal-enhanced lateral flow strip biosensor has been constructed for ultrasensitive and on-site visual detection of bisphenol A (BPA). The signal amplification principle is based on the capacity of binding a large number of antibody-assembled gold nanoparticle (AuNP-antibody) conjugates of the poly amidoamine (PAMAM), which bears a multitude of amino groups. This signal-enhanced method could achieve BPA detection at 10 ppb based on naked eye visual observation, which represents an at least 50-fold improvement of the sensitivity of a traditional method without PAMAM. Moreover, good linearity was observed in the range from 2 to 100 ppb after quantitative analysis using the ImageJ software. This signal amplification method could be adopted as a potential generous technique in different fields. ARTICLE HISTORY

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Section: Introductionmentioning

confidence: 99%

A signal-enhanced lateral flow strip biosensor for ultrasensitive and on-site detection of bisphenol A

Peng

Kang

Pang

et al. 2017

Food and Agricultural Immunology

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“…These carbon nanomaterials showing a planar two-dimensional morphology can be prepared at relative low cost and easily functionalized with a variety of chemical groups. Graphene and its oxidized derivative can be also combined with other materials and compounds, such as polymers, ceramics, metal and metal oxides nanostructures, etc., to yield novel composite or hybrid adducts with improved or new chemical and physical properties [11][12][13]. In this regard, the synergistic effect between graphene and metal oxide nanostructures in hybrid nanomaterials have opened new possibilities to design electrochemical biosensors with desired properties and behaviors [14].…”

Section: Introductionmentioning

confidence: 99%

Reduced graphene oxide-Sb2O5 hybrid nanomaterial for the design of a laccase-based amperometric biosensor for estriol

Cincotto

Canevari

Machado

et al. 2015

Electrochimica Acta

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Reduced graphene oxide-Sb2O5 hybrid nanomaterial for the design of a laccase-based amperometric biosensor for estriol, Electrochimica Acta http://dx. AbstractA novel reduced graphene oxide/Sb2O5 hybrid nanomaterial was prepared by a one-pot reaction process. The nanomaterial was characterized by different spectroscopic, microscopic and electrochemical techniques, demonstrating that the graphene sheets were doped with a Sb2O5 thin film. A glassy carbon electrode coated with the hybrid material was further employed as support for the covalent immobilization of laccase to develop an electrochemical biosensor for estriol. The enzyme biosensor showed high sensitivity (275 mA/M) and fast analytical response (4 s) for the hormone, with a limit of detection of 11 nM in the range of 25 nM to 1.03 µM. The biosensor showed high selectivity for the analytical detection of estriol.

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“…Due to their inertness, platinum NPs (PtNPs) are the principal metal NPs alternative for anodic current measurement and have been applied to formaldehyde [28], neurotransmitters [29], glucose [30], uric acid [31], and As(III) determination [32]. …”

Section: Introductionmentioning

confidence: 99%

Effect of Nanoparticles on Modified Screen Printed Inhibition Superoxide Dismutase Electrodes for Aluminum

Barquero-Quirós

Arcos‐Martínez

2016

Sensors

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A novel amperometric biosensor for the determination of Al(III) based on the inhibition of the enzyme superoxide dismutase has been developed. The oxidation signal of epinephrine substrate was affected by the presence of Al(III) ions leading to a decrease in its amperometric current. The immobilization of the enzyme was performed with glutaraldehyde on screen-printed carbon electrodes modifiedwith tetrathiofulvalene (TTF) and different types ofnanoparticles. Nanoparticles of gold, platinum, rhodium and palladium were deposited on screen printed carbon electrodes by means of two electrochemical procedures. Nanoparticles were characterized trough scanning electronic microscopy, X-rays fluorescence, and atomic force microscopy. Palladium nanoparticles showed lower atomic force microscopy parameters and higher slope of aluminum calibration curves and were selected to perform sensor validation. The developed biosensor has a detection limit of 2.0 ± 0.2 μM for Al(III), with a reproducibility of 7.9% (n = 5). Recovery of standard reference material spiked to buffer solution was 103.8% with a relative standard deviation of 4.8% (n = 5). Recovery of tap water spiked with the standard reference material was 100.5 with a relative standard deviation of 3.4% (n = 3). The study of interfering ions has also been carried out.

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Graphene–polyamidoamine dendrimer–Pt nanoparticles hybrid nanomaterial for the preparation of mediatorless enzyme biosensor

Cited by 46 publications

References 32 publications

A signal-enhanced lateral flow strip biosensor for ultrasensitive and on-site detection of bisphenol A

A signal-enhanced lateral flow strip biosensor for ultrasensitive and on-site detection of bisphenol A

Reduced graphene oxide-Sb2O5 hybrid nanomaterial for the design of a laccase-based amperometric biosensor for estriol

Effect of Nanoparticles on Modified Screen Printed Inhibition Superoxide Dismutase Electrodes for Aluminum

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