Copper(I) oxide nanospheres decorated with graphene quantum dots display improved electrocatalytic activity for enhanced luminol electrochemiluminescence

Yan, Yuting; Liu, Qian; Dong, Xiaopeng; Hao, Nan; Chen, Saibo; You, Tianyan; Mao, Hanping; Wang, Kun

doi:10.1007/s00604-016-1784-9

Cited by 12 publications

(8 citation statements)

References 45 publications

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“…Because of the versatility and simplified instruments, ECL as a promising analytical approach has already attracted extensive attention in recent decades, especially for detection of small molecules. [96][97][98][99][100][101][102][103][104][105][106][107][108][109] Determination of glucose is of importance given that its concentration is essential for medical diagnostics and associated with many diseases. Therefore, Tian et al fabricated a glucose sensor based on the quenching effect of H 2 O 2 produced by the enzymatic oxidation of glucose.…”

Section: Small Molecule Sensingmentioning

confidence: 99%

Carbon-based dots for electrochemiluminescence sensing

Chen

Cao

et al. 2020

Mater. Chem. Front.

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Section: Small Molecule Sensingmentioning

confidence: 99%

Carbon-based dots for electrochemiluminescence sensing

Chen

Cao

et al. 2020

Mater. Chem. Front.

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“…With this, the calculated value of an LOD was around 0.005 µmol L −1 . Yan and colleagues proposed an in situ methodology for synthesizing GQDs implanted with the nanospheres of Cu2O [208]. The characterization of this nanomaterial was achieved by XRD, TEM as well as X-ray photoelectron spectroscopy.…”

Section: Electrochemiluminescence-based Gqd-sensorsmentioning

confidence: 99%

“…The assynthesized N-GQDs with GO as the immobilization support possessed excellent ECL behavior i.e., a 3.8-fold higher ECL response than simply using N-GQDs, and also led to a decreased ECL onset potential by 200 mV. This ECL sensor could identify PCP concentration in a linear range, i.e., from Yan and colleagues proposed an in situ methodology for synthesizing GQDs implanted with the nanospheres of Cu 2 O [208]. The characterization of this nanomaterial was achieved by XRD, TEM as well as X-ray photoelectron spectroscopy.…”

Section: Electrochemiluminescence-based Gqd-sensorsmentioning

confidence: 99%

Applications of Graphene Quantum Dots in Biomedical Sensors

Mansuriya

Altıntaş

2020

Sensors

158

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Due to the proliferative cancer rates, cardiovascular diseases, neurodegenerative disorders, autoimmune diseases and a plethora of infections across the globe, it is essential to introduce strategies that can rapidly and specifically detect the ultralow concentrations of relevant biomarkers, pathogens, toxins and pharmaceuticals in biological matrices. Considering these pathophysiologies, various research works have become necessary to fabricate biosensors for their early diagnosis and treatment, using nanomaterials like quantum dots (QDs). These nanomaterials effectively ameliorate the sensor performance with respect to their reproducibility, selectivity as well as sensitivity. In particular, graphene quantum dots (GQDs), which are ideally graphene fragments of nanometer size, constitute discrete features such as acting as attractive fluorophores and excellent electro-catalysts owing to their photo-stability, water-solubility, biocompatibility, non-toxicity and lucrativeness that make them favorable candidates for a wide range of novel biomedical applications. Herein, we reviewed about 300 biomedical studies reported over the last five years which entail the state of art as well as some pioneering ideas with respect to the prominent role of GQDs, especially in the development of optical, electrochemical and photoelectrochemical biosensors. Additionally, we outline the ideal properties of GQDs, their eclectic methods of synthesis, and the general principle behind several biosensing techniques.

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“…[13][14][15][16][17] Carbon quantum dots (CQDs), as a new nanomaterial with excellent stability, well biological compatibility and good aqueous solubility, are regarded as new candidates for luminescent materials. [18][19][20][21][22] It have been anticipated to overtake previous pioneers in many elds. 23 Up to now, various carbon source had been used for the preparation of CQDs, i.e., activated carbon, carbon nanotubes (CNTs), biomass, organic molecular and even metal organic frameworks (MOFs), but, preparing CQDs with controllable element composition remains a huge challenge.…”

Section: Introductionmentioning

confidence: 99%