Quenched solid-state electrochemiluminescence of gold nanoclusters and the application in the ultrasensitive detection of concanavalin A

Chen, Shihong; Fan, Yu; Zhang, Cong; He, Yanyan; Wei, Shaping

doi:10.1016/j.electacta.2017.01.084

Cited by 19 publications

(6 citation statements)

References 37 publications

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“…Gold nanoclusters (AuNCs) have become a promising material due to their fascinating performance, such as being eco-friendly and having high colloidal stability, superior catalytic activity, unusual photophysical properties, and good biocompatibility. − Although the fluorescent properties of AuNCs have been widely studied, there are only a few papers regarding the AuNC-based ECL sensing platform for analytical application. − The main reasons probably lie in the weak ECL intensity and the unclear mechanism. Thus, finding a way to obtain a strong and efficient ECL signal for AuNCs becomes the key interest for establishing AuNC-based ECL sensors.…”

Section: Introductionmentioning

confidence: 99%

Valence States Effect on Electrogenerated Chemiluminescence of Gold Nanocluster

Peng

Jian

Deng

et al. 2017

ACS Appl. Mater. Interfaces

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This work elucidated the valence states effect on the electrogenerated chemiluminescence (ECL) performance of gold nanocluster (AuNC). The N-acetyl-l-cysteine-AuNCs (NAC-AuNCs) and the electrochemical reduction method for reducing the AuNCs were first employed to this study. Results demonstrate that the electrochemical reduction degree of the AuNCs depended on the reduction potential, and the enhancement of the ECL signals was positively correlated with the reduction degree of AuNCs, which indicated that the valence state of Au plays a vital role in the ECL performance of AuNCs. Furthermore, the proposed method has been successfully extended to the chemical reduction technique and other nanoclusters. Therefore, an excellent AuNC-based ECL method with various advantages, such as simple preparation, lower toxicity, high sensitivity, and Φ, and excellent stability, has been proposed. This approach not only opens up a new avenue for designing and developing ECL device from other functional-metal based NCs, but also extends the huge potential application in the ECL sensing.

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Section: Introductionmentioning

confidence: 99%

Valence States Effect on Electrogenerated Chemiluminescence of Gold Nanocluster

Peng

Jian

Deng

et al. 2017

ACS Appl. Mater. Interfaces

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show abstract

“…NCs can be synthesised in a variety of ways including chemical/photochemical-reduction, etching or template assisted synthesis, [60][61][62] and have been used to detect and quantify a number of analytes such as DNA, 22 enzymes, 63 and dopamine 64 . However, the range of analytes detectable is less than Cd based ECL platforms.…”

Section: Metal Nanoclustersmentioning

confidence: 99%

Evolution of nanomaterial Electrochemiluminescence luminophores towards biocompatible materials

O’Connor

Dennany²,

O’Reilly³

2023

Bioelectrochemistry

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“…26 Chen et al prepared glucose oxidase@ferrocenecarboxylic acid-PtPd nanocubes as quenching tags for solid-state ECL of BAS-AuNCs, achieving sandwiched immunoassay for concanavalin A, a commonly studied lectin. 84 Ahmadi et al fabricated a sandwiched paper-based ECL biosensor using zirconium-MOFs/ Fe 3 O 4 (trimethyl chitosan)/AuNC composites as tracing labels and reduced GO as the immobilization matrix for HbA1c detection, the most important long-term index reflecting the average blood glucose level. 85 Jiang et al reported a hydrogel network composed of AuNCs chelated with divalent cations (i.e., Ca 2+ , Mg 2+ , and Zn 2+ ), exhibiting aggregation-induced ECL (AIECL).…”

Section: Perspective Dalton Transactionsmentioning

confidence: 99%