(Bio)electroanalytical Applications of Carbon Nanoparticles

Szot, Katarzyna; Opałło, Marcin

doi:10.1002/elan.201500478

Cited by 10 publications

(5 citation statements)

References 82 publications

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“…159 It has to be noted however, that in the case of electrochemical sensors, next to CQDs and GQDs, carbon nanoparticles (CNPs), not discussed here, have found wider use and the readers are referened to some of the papers on this topic. 18,19,78,[160][161][162][163][164][165][166][167][168] CQDs are now seen as crucial components in high performing electrochemical sensors as witnessed by the vast literature of the last 5 years summarized partially in Table 2. They can be used as a multivalent redox species using cyclic voltammetry and differential puls voltammetry (DPV) measurements as exemplified by Shinde and Pillai 169 who showed a sequential, single-electron charging process of GQDs encapsulated in dodecylamine of about 2.2-3 nm in size.…”

Section: Electrochemical Sensorsmentioning

confidence: 99%

“…Nanodiamonds are made up of a diamond core and are with a sp 2 carbon shell and/or different surface functional groups. 17 Carbon nanoparticle (CNPs) 18,19 encompass a panel of nanomaterials including carbon black, amorphous carbon, carbon soot, carbon dots (C-dots) and core-shell nanocarbons, with no real scientific consensus on the term describing them. Carbon black, for example, is the generic name of carbon particles which are produced by incomplete combustion of gaseous or liquid hydrocarbons.…”

Section: Introductionmentioning

confidence: 99%

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Carbon-based quantum particles: an electroanalytical and biomedical perspective

et al. 2019

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Section: Electrochemical Sensorsmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

Carbon-based quantum particles: an electroanalytical and biomedical perspective

et al. 2019

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“…Compositions of the NPs may range from metals (gold, 43 copper, 44 silver, 45 iron, 46 titanium dioxide 47 etc.) to carbon 48 or even polymers. 49 Generally, NPs can present characteristic properties such as optical, electronic, magnetic, chemical, mechanical, and catalytic.…”

Section: Nanoparticlesmentioning

confidence: 99%

Nanobiosensors in diagnostics

Chamorro-Garcia

Merkoçi

2016

Nanobiomedicine

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Medical diagnosis has been greatly improved thanks to the development of new techniques capable of performing very sensitive detection and quantifying certain parameters. These parameters can be correlated with the presence of specific molecules and their quantity. Unfortunately, these techniques are demanding, expensive, and often complicated. On the other side, progress in other fields of science and technology has contributed to the rapid growth of nanotechnology. Although being an emerging discipline, nanotechnology has raised huge interest and expectations. Most of the enthusiasm comes from new possibilities and properties of nanomaterials. Biosensors (simple, robust, sensitive, cost-effective) combined with nanomaterials, also called nanobiosensors, are serving as bridge between advanced detection/diagnostics and daily/routine tests. Here we review some of the latest applications of nanobiosensors in diagnostics field.

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“…The attractiveness of carbon nanoparticles (CNPs) for the construction of electrochemical sensors comes from the confluence of interesting properties such as the electrocatalytic activity, the possibility of functionalization or doping, the ease of synthesis using environmentally friendly methods and the relatively low production costs. In the particular case of biosensors, it should be also mentioned the ability for biomolecules immobilization and the demonstrated electron shuttle between electrode substrates and adsorbed biomolecules . Although there is a wide variety of CNPs and several have found application in the development of optical sensors by exploiting the properties of light interaction with these nanomaterials, there are still very few applications in the field of immunosensors and, in particular, in the area of electrochemical immunosensors.…”

Section: Carbon Nanoparticlesmentioning

confidence: 99%

Uncommon Carbon Nanostructures for the Preparation of Electrochemical Immunosensors

et al. 2016

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1IntroductionCarbon nanomaterials such as single-or multi-walled nanotubes and grapheneh ave been extensively used as electrode modifiers in the preparation of electrochemical sensors andb iosensors.E lectrode nanostructuration with these carbon materials allows preparing scaffolds with improved conductivity and selectivity and with enhanced ability for the immobilization of biomolecules. In addition, carbon nanomaterials can be used to designs uitable strategies for signala mplificationt hus leading to significant improvements in sensitivity.M ore recently,a part from the above mentioned carbon nanomaterials,o ther forms of carbon nanoforms have emergeda sn ovel nanostructuration tools suitable to be employed also in the preparation of novel electrochemical sensors and biosensor designs achieving improved analytical performance. Carbon nanohorns,d ouble-walled carbon nanotubes,f ullerene (C60), carbon nanoparticles,a nd graphene quantum dots are examples of thesen ovel nanomaterials whose particular characteristics make them appropriate for the constructiono fb ioelectrochemical devices.I nt his review article,t he use of these carbon nanomaterials in the particular field of electrochemical immunosensors preparation is reviewed.Thea bove mentioned, so called, uncommon carbon nanomaterials have been employed in the designo fe lectrochemical immunoassays in order to enhance their analytical performance both from the standpoint of attain am ore effective and simple immobilization of immunoreagents as to get betterd etection limits.A si tw ill be commentedb elow,t his analytical enhancementc an be achieved by taking advantage of somes pecific properties of these materialss uch as the ability of carbon nanohornst o provide numerous surface confined carboxylg roups for covalent binding, or the excellent capability of fullerene (C60) to accelerate electron transfer,a sw ell as its ability for combination with other materials to improve biocompatibility or water solubility.A lthough there are other carbon nanomaterials which have been scarcely explored for applications in electrochemical biosensing, only those of these nanomaterials that have demonstrated already their usefulness for the preparation of electrochemical immunosensors have been considered in this article. 2Carbon NanohornsSingle-walled carbon nanohorns,S WCNHs (or simply CNHs) are ar elatively new type of carbon allotrope.O ne single CNH consists of au nique horn-shaped graphene sheet with al ength of 40-50 nm and ad iameter ranging between 2a nd 5nm ( Figure 1a) [1].C NHs are prepared by vaporizing pure graphite rods via CO 2 laser ablation without usinga ny metalc atalysts.T hus,a ni mportant advantage of this materials over i.e.c arbon nanotubes is that CNHs are essentially metal-free [2, 3] and can be used directly without post-treatment. Typically,C NHs assembles to form nanostructures similar to dahlia flowers composed of several units (Figure 1b) with ad iameter near from 100 nm [4,5].T he special properties of CNHs derive from the high conductivity...

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(Bio)electroanalytical Applications of Carbon Nanoparticles

Cited by 10 publications

References 82 publications

Carbon-based quantum particles: an electroanalytical and biomedical perspective

Carbon-based quantum particles: an electroanalytical and biomedical perspective

Nanobiosensors in diagnostics

Uncommon Carbon Nanostructures for the Preparation of Electrochemical Immunosensors

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