Facile synthesis and dopamine sensing application of three component nanocomposite thin films based on polythiophene, gold nanoparticles and carbon nanotubes

Inagaki, Camila S.; Oliveira, Marcela M.; Bergamini, Márcio F.; Marcolino‐Júnior, Luiz H.; Zarbin, Aldo J. G.

doi:10.1016/j.jelechem.2019.03.066

Cited by 32 publications

(12 citation statements)

References 63 publications

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“…LOD of 0.5 and 10 µM were obtained for DA and AA, respectively. This LOD for DA is close to the value reported by Inagaki et al [193] Polyaniline (PANI) has a huge reputation for environmental stability, ease of polymerization, and conductivity. As a result, it endears researchers to adopt it in composite containing an equally conducting CNTs.…”

Section: Cnts Enhanced Electrochemical Da Detection (2019)supporting

confidence: 87%

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Progress in electrochemical detection of neurotransmitters using carbon nanotubes/nanocomposite based materials: A chronological review

et al. 2020

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Neurotransmitters (NTs) are chemical compounds that play an important physiological role in the functioning of central nervous, renal, hormonal, and cardiovascular systems. Their function is to regulate neural interactions by reducing the permeability of gap junctions between adjacent neurons of the same type. The abnormal level may lead to diseases, such as Parkinson's disease, Huntington's disease, Alzheimer's diseases, and other neurological diseases. The devastating health hazards associated with the abnormal presence of NTs in biological systems coupled with the demerits of most modern detection methods necessitates the continuous development of novel electrochemical sensors. Carbon nanotube (CNT)-based sensors, as a result of the large surface area, biocompatibility, and chemical stability supplied by CNTs, have proven to offer massive sensitivity and low limit of detection (LOD). Its significance in sensors applications toward the detection of different group of compounds cannot be overemphasized. There are several review articles on NTs and their determination using different chemically modified electrodes and sensor platform. However, this review highlights the significance of notable NTs and the progress made in the last decade in the design of CNT-based sensors for the detection of common NTs. Secondly, the This is an open access article under the terms of the Creative Commons Attribution License, which permits use, distribution and reproduction in any medium, provided the original work is properly cited.

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Section: Cnts Enhanced Electrochemical Da Detection (2019)supporting

confidence: 87%

“…Inagaki et al synthesized the three component PT/AuNPs/CNT thin film using a single-step reaction. [193] The synthesized film was dispersed on a silicon/glass substrate supported on a rod to obtain an electrode designated PT/AuNPs/CNT. For comparison, PT/AuNPs was fabricated.…”

Section: Cnts Enhanced Electrochemical Da Detection (2019)mentioning

confidence: 99%

Progress in electrochemical detection of neurotransmitters using carbon nanotubes/nanocomposite based materials: A chronological review

et al. 2020

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“…This sensor shows one of the lowest detection limits for DA of 100 pM with linear dynamic range from 1 nM to 300 µM related to an increased surface area, high catalytic activity of AuNP and a superior conductivity of GP and PEDOT:PSS. Moreover, thin polythiophene films composed with gold nanoparticles and carbon nanotubes (PT/Au/CNT) were synthesized by liquid–liquid interfacial reaction [ 120 ]. The construction of this composite required an aqueous mixture of dispersed CNT, HCl, HAuCl 4 .3H 2 O, and thiophene, in a molar relation 1:1 with HAuCl 4 .…”

Section: Electrochemical Sensors Based On Conducting Polymersmentioning

confidence: 99%

Section: Figurementioning

confidence: 99%

Electrochemical Sensors Based on Conducting Polymers for the Aqueous Detection of Biologically Relevant Molecules

et al. 2021

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Electrochemical sensors appear as low-cost, rapid, easy to use, and in situ devices for determination of diverse analytes in a liquid solution. In that context, conducting polymers are much-explored sensor building materials because of their semiconductivity, structural versatility, multiple synthetic pathways, and stability in environmental conditions. In this state-of-the-art review, synthetic processes, morphological characterization, and nanostructure formation are analyzed for relevant literature about electrochemical sensors based on conducting polymers for the determination of molecules that (i) have a fundamental role in the human body function regulation, and (ii) are considered as water emergent pollutants. Special focus is put on the different types of micro- and nanostructures generated for the polymer itself or the combination with different materials in a composite, and how the rough morphology of the conducting polymers based electrochemical sensors affect their limit of detection. Polypyrroles, polyanilines, and polythiophenes appear as the most recurrent conducting polymers for the construction of electrochemical sensors. These conducting polymers are usually built starting from bifunctional precursor monomers resulting in linear and branched polymer structures; however, opportunities for sensitivity enhancement in electrochemical sensors have been recently reported by using conjugated microporous polymers synthesized from multifunctional monomers.

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“…Anionic surfactant-assisted and Cu(II) catalyzed oxidative polymerization of PTh–NPs in aqueous media showed the formation of spherical PTh–NPs [ 24 ]. Recently, coating of polythiophene onto the surface of gold by a biphasic liquid–liquid interfacial polymerization route has been reported [ 25 , 26 ]. In some cases, surfactant-assisted polymerization may add some doped ions onto polymer which, in some cases, may influence on material conductivity or in some other cases may induce some sorts of cytotoxicity.…”

Section: Introductionmentioning

confidence: 99%

NIR-Triggered Hyperthermal Effect of Polythiophene Nanoparticles Synthesized by Surfactant-Free Oxidative Polymerization Method on Colorectal Carcinoma Cells

Bhattarai

Kim

2020

Cells

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In this work, polythiophene nanoparticles (PTh–NPs) were synthesized by a surfactant-free oxidative chemical polymerization method at 60 °C, using ammonium persulphate as an oxidant. Various physicochemical properties were studied in terms of field emission scanning electron microscopy (FESEM), X-ray diffraction (XRD), Fourier transform infra-red (FT-IR) spectroscopy, and differential scanning calorimetry (DSC)/thermogravimetric analysis (TGA). Photothermal performance of the as-synthesized PTh–NPs was studied by irradiating near infra-red of 808 nm under different concentration of the substrate and power supply. The photothermal stability of PTh–NPs was also studied. Photothermal effects of the as-synthesized PTh–NPs on colorectal cancer cells (CT-26) were studied at 100 µg/mL concentration and 808 nm NIR irradiation of 2.0 W/cm2 power. Our in vitro results showed remarkable NIR laser-triggered photothermal apoptotic cell death by PTh–NPs. Based on the experimental findings, it is revealed that PTh–NPs can act as a heat mediator and can be an alternative material for photothermal therapy in cancer treatment.

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Facile synthesis and dopamine sensing application of three component nanocomposite thin films based on polythiophene, gold nanoparticles and carbon nanotubes

Cited by 32 publications

References 63 publications

Progress in electrochemical detection of neurotransmitters using carbon nanotubes/nanocomposite based materials: A chronological review

Progress in electrochemical detection of neurotransmitters using carbon nanotubes/nanocomposite based materials: A chronological review

Electrochemical Sensors Based on Conducting Polymers for the Aqueous Detection of Biologically Relevant Molecules

NIR-Triggered Hyperthermal Effect of Polythiophene Nanoparticles Synthesized by Surfactant-Free Oxidative Polymerization Method on Colorectal Carcinoma Cells

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