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An optimized, sensitive and stable reduced graphene oxide-gold nanoparticle-luminol-H2O2 chemiluminescence system and its potential analytical application

ISSN号：1674-1056
期刊名称：《中国物理B：英文版》
时间：0
分类：O657.3[理学—分析化学;理学—化学] O241.82[理学—计算数学;理学—数学]
作者机构：[1]Key Laboratory of Luminescence and Optical Information, Ministry of Education, Institute of Optoelectronic Technology, Beijing Jiaotong University, Beijing 100044, China, [2]School of Science, China University of Petroleum, Beijing 102249, China
相关基金：Project supported by the National Key Basic Research Program, China （Grant Nos. 2011CB932700 and 2011CB932703）, the National Natural Science Foun- dation of China （Grant Nos. 61378073, 61335006, 91123025, and 61077044）, and the Beijing Natural Science Fund Project, China （Grant No. 4132031 ）.

作者：王闻硕[1], 何大伟[1], 王继红[2], 段嘉华[1], 彭洪尚[1], 吴洪鹏[1], 富鸣[1], 王永生[1], 张希清[1]

关键词：化学发光体系, 高稳定性, 氧化石墨, 鲁米诺, 纳米金, 氧化物, 金纳米粒子, 纳米复合材料, graphene, nanoparticles, chemiluminescence, biosensers

中文摘要：

The chemiluminescence(CL) performance of luminol is improved using reduced graphene oxide/gold nanoparticle(rGO–AuNP) nano-composites as catalyst. To prepare this catalyst, we propose a linker free, one-step method to insitu synthesize rGO–AuNP nano-composites. Various measurements are utilized to characterize the resulting rGO–AuNP samples, and it is revealed that rGO could improve the stability and conductivity. Furthermore, we investigate the CL signals of luminal catalyzed by rGO–AuNP. Afterwards, the size effect of particle and the assisted enhancement effect of rGO are studied and discussed in detail. Based on the discussion, an optimal, sensitive and stable rGO–AuNP-luminon–H2O2CL system is proposed. Finally, we utilize the system as a sensor to detect hydrogen peroxide and organic compounds containing amino, hydroxyl, or thiol groups. The CL system might provide a more attractive platform for various analytical devices with CL detection in the field of biosensors, bioassays, and immunosensors.

英文摘要：

The chemiluminescence （CL） performance of luminol is improved using reduced graphene oxide/gold nanoparticle （rGO-AuNP） nano-composites as catalyst. To prepare this catalyst, we propose a linker free, one-step method to in- situ synthesize rGO-AuNP nano-composites. Various measurements are utilized to characterize the resulting rGO-AuNP samples, and it is revealed that rGO could improve the stability and conductivity. Furthermore, we investigate the CL signals of luminal catalyzed by rGO-AuNP. Afterwards, the size effect of particle and the assisted enhancement effect of rGO are studied and discussed in detail. Based on the discussion, an optimal, sensitive and stable rGO-AuNP-luminon- H202 CL system is proposed. Finally, we utilize the system as a sensor to detect hydrogen peroxide and organic compounds containing amino, hydroxyl, or thiol groups. The CL system might provide a more attractive platform for various analytical devices with CL detection in the field of biosensors, bioassays, and immunosensors.