Graphene and graphene oxides: recent advances in chemiluminescence and electrochemiluminescence

Su, Yingying; Lv, Yi

doi:10.1039/c4ra03598d

Cited by 57 publications

(37 citation statements)

References 136 publications

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“…[1][2][3][4][5][6] The unique structure of monolayered graphene provides extraordinary electronic properties and excellent thermal and electrical conductivity. [1][2][3][4][5][6] The unique structure of monolayered graphene provides extraordinary electronic properties and excellent thermal and electrical conductivity.…”

Section: Introductionmentioning

confidence: 99%

Controlling the cooperative self-assembly of graphene oxide quantum dots in aqueous solutions

2015

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Fascinating 3D cooperative self-assembly behavior was observed for 2D graphene oxide quantum dots (GOQDs) in dilute and semi dilute aqueous solutions. In addition the optical properties could be tuned by controlling the supramolecular structures. While the electrostatic interactions between the charged single sheets were assigned as the main secondary interactions that were responsible for the supramolecular fine structures, the concentration, temperature, salt concentration and pH could tune the repulsive/attractive forces and the molecular binding between the GOQD sheets. The morphological studies combined with UV-Vis and fluorescence evaluations proved that after a slow nucleation step, elongation preceded radially by H-aggregate self-association of the GOQD monomers, forming the final porous spheres by radial growth of rods. The quenching properties of the self-associated-assembled GOQDs together with the excitation wavelengths of the GOQD solutions enabled tuning of the fluorescence intensity and color of the final solutions, which could be utilized for e.g. bioimaging and smart spectroscopy. † Electronic supplementary information (ESI) available: DSC and TGA analyses, RAMAN spectroscopy, particle sizes of GOQD solutions, zeta potentials (z) of GOQD solutions, TEM images, UV-Vis transmittance, AFM images and size analysis in the dried state and uorescence spectroscopy. See

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Section: Introductionmentioning

confidence: 99%

Controlling the cooperative self-assembly of graphene oxide quantum dots in aqueous solutions

2015

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“…CL-based chemosensors show superior sensitivity which is ascribed to the avoidance of the noise caused by light scattering and feature simpler setup with lower background emissions in comparison with photoluminescence-sensing systems [55,56]. Compared to traditional liquid-phase CL mostly based on molecular and ion systems, nanometer (nm)-sized particle (NP)-based CL systems improve the sensitivity and the stability, mainly resulting from the large surface area and special structure of nanomaterials; therefore, there were plenty of reports about NP-participated CL reactions [57][58][59][60][61][62] during which NPs were used as catalysts, reductants, luminophors or energy acceptors. Although other carbon nanostructures (graphene, graphene oxide, fullerenes, carbon nanodots, carbon nanotube, carbon nanospheres) have gained quite a lot of attentions in developing CL-based analytical methods and applications in CL systems [63], the investigation of CL behavior of g-C 3 N 4 with different co-reactants or g-C 3 N 4 -assisted CL systems for developing g-C 3 N 4 -based luminescent sensors is still in its infancy, only several published reports involve this topic.…”

Section: Chemiluminescencementioning

confidence: 99%

Recent Advances in Graphitic Carbon Nitride-Based Chemiluminescence, Cataluminescence and Electrochemiluminescence

Song

Zhang

et al. 2017

J. Anal. Test.

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Graphitic carbon nitride (g-C 3 N 4 ) has attracted considerable attention due to its special structure and properties, such as its good chemical and thermal stability under ambient conditions, low cost and non-toxicity, and facile synthesis. Recently, g-C 3 N 4 -based sensors have been demonstrated to be of high interests in the areas of sensing due to the unique optical, electronic and catalytic properties of g-C 3 N 4 . This review focuses on the most salient advances in luminescent sensors based on g-C 3 N 4 , chemiluminescence, cataluminescence and electrochemiluminescence methods are discussed. This review provides valuable information for researchers of related areas and thus may inspire the development of more practical and effective approaches for designing two-dimensional (2D) nanomaterial-assisted luminescent sensors.

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“…18 Such lead-requiring DNAzyme has been isolated in test tubes 19,20 and is highly affinitive for specific metal ions covering 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 33 34 35 36 37 38 39 40 41 42 43 44 45 46 47 48 49 50 51 52 53 54 55 56 57 58 59 60 Pb(II) [21][22][23] , Cu(II) 24 and Zn(II) 25,26 . A typical Pb 2+ -requiring DNAzyme design named "8-17" is consisted of a substrate strand (17DS) and an enzyme strand (17E) [21][22] 31,32 . In addition, the quenching of luminol ECL signal was also studied [33][34][35][36] .…”

Section: Introductionmentioning

confidence: 99%

An “Off–On” Electrochemiluminescent Biosensor Based on DNAzyme-Assisted Target Recycling and Rolling Circle Amplifications for Ultrasensitive Detection of microRNA

et al. 2015

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In this study, an off-on switching of a dual amplified electrochemiluminescence (ECL) biosensor based on Pb(2+)-induced DNAzyme-assisted target recycling and rolling circle amplification (RCA) was constructed for microRNA (miRNA) detection. First, the primer probe with assistant probe and miRNA formed Y junction which was cleaved with the addition of Pb(2+) to release miRNA. Subsequently, the released miRNA could initiate the next recycling process, leading to the generation of numerous intermediate DNA sequences (S2). Afterward, bare glassy carbon electrode (GCE) was immersed into HAuCl4 solution to electrodeposit a Au nanoparticle layer (depAu), followed by the assembly of a hairpin probe (HP). Then, dopamine (DA)-modified DNA sequence (S1) was employed to hybridize with HP, which switching off the sensing system. This is the first work that employs DA to quench luminol ECL signal, possessing the biosensor ultralow background signal. Afterward, S2 produced by the target recycling process was loaded onto the prepared electrode to displace S1 and served as an initiator for RCA. With rational design, numerous repeated DNA sequences coupling with hemin to form hemin/G-quadruplex were generated, which could exhibit strongly catalytic toward H2O2, thus amplified the ECL signal and switched the ON state of the sensing system. The liner range for miRNA detection was from 1.0 fM to 100 pM with a low detection limit down to 0.3 fM. Moreover, with the high sensitivity and specificity induced by the dual signal amplification, the proposed miRNA biosensor holds great potential for analysis of other interesting tumor markers.

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Graphene and graphene oxides: recent advances in chemiluminescence and electrochemiluminescence

Cited by 57 publications

References 136 publications

Controlling the cooperative self-assembly of graphene oxide quantum dots in aqueous solutions

Controlling the cooperative self-assembly of graphene oxide quantum dots in aqueous solutions

Recent Advances in Graphitic Carbon Nitride-Based Chemiluminescence, Cataluminescence and Electrochemiluminescence

An “Off–On” Electrochemiluminescent Biosensor Based on DNAzyme-Assisted Target Recycling and Rolling Circle Amplifications for Ultrasensitive Detection of microRNA

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