Boron Nitride Quantum Dots as Efficient Coreactant for Enhanced Electrochemiluminescence of Ruthenium(II) Tris(2,2′-bipyridyl),Analytical Chemistry

当前位置： X-MOL 学术 › Anal. Chem. › 论文详情

Our official English website, www.x-mol.net, welcomes your feedback! (Note: you will need to create a separate account there.)

Boron Nitride Quantum Dots as Efficient Coreactant for Enhanced Electrochemiluminescence of Ruthenium(II) Tris(2,2′-bipyridyl)
Analytical Chemistry ( IF 6.7 ) Pub Date : 2018-01-12 00:00:00 , DOI: 10.1021/acs.analchem.7b04428
Huanhuan Xing _{1,

2} , Qingfeng Zhai ₁ , Xiaowei Zhang ₁ , Jing Li ₁ , Erkang Wang ₁

Affiliation

In the present work, an enhanced and stable anodic electrochemiluminescence (ECL) was observed from a suspension of boron nitride quantum dots (BNQDs) and Ru(bpy)₃²⁺, which had a 400-fold enhancement compared with individual Ru(bpy)₃²⁺. Interestingly, different from the previous research on BNQDs as a type of optical probe, BNQDs were demonstrated as an efficient coreactant of Ru(bpy)₃²⁺-based ECL for the first time and confirmed by collecting the ECL spectra. The amino-bearing groups and the electrocatalytic effect of the BNQDs endowed them as potential coreactants for ECL of Ru(bpy)₃²⁺, and the possible mechanism of the electrode surface reaction was discussed. Several factors including electrode material, the pH of the buffer solution, and the amount of BNQDs were investigated and also further confirmed the role of the BNQDs in the proposed Ru(bpy)₃²⁺/BNQDs system. On the basis of the quenching effect between the excited state of Ru(bpy)₃²⁺ and the oxidation form of DA in the ECL system of Ru(bpy)₃²⁺/BNQDs, the ECL sensing platform for DA was successfully established. The proposed ECL system with the outstanding ECL efficiency may hold great potential in the bioanlysis because of the biocompatibility and good stability of BNQDs.

中文翻译：

氮化硼量子点作为增强钌（II）Tris（2,2'-联吡啶）电化学发光的有效共反应剂

在本工作中，从氮化硼量子点（BNQDs）和Ru（bpy）₃²⁺的悬浮液中观察到增强和稳定的阳极电化学发光（ECL），与单个Ru（bpy）相比，该悬浮液具有400倍的增强₃²⁺。有趣的是，与先前对BNQDs作为一种光学探针的研究不同，BNQDs首次被证明是基于Ru（bpy）₃²⁺的ECL的有效共反应剂，并通过收集ECL光谱得到证实。含氨基的基团和BNQDs的电催化作用使它们成为Ru（bpy）₃^2+的ECL的潜在共反应物。讨论了电极表面反应的可能机理。研究了电极材料，缓冲溶液的pH值和BNQD的数量等因素，并进一步证实了BNQD在拟议的Ru（bpy）₃²⁺ / BNQDs系统中的作用。上的吡啶钌的激发态之间的淬灭效应的基础₃²⁺和DA的在吡啶钌的ECL系统的氧化形式₃²⁺ / BNQDs，所述感测ECL为DA平台成功建立。所提出的具有优异ECL效率的ECL系统由于BNQD的生物相容性和良好的稳定性可能在生物分析中具有巨大的潜力。

更新日期：2018-01-12

点击分享查看原文

点击收藏

阅读更多本刊最新论文本刊介绍/投稿指南11