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

作者：Wang Wen-Shuo; He Da-Wei^*; Wang Ji-Hong; Duan Jia-Hua; Peng Hong-Shang; Wu Hong-Peng; Fu Ming; Wang Yong-Sheng; Zhang Xi-Qing

来源：Chinese Physics B, 2014, 23(4): 048103.

DOI：10.1088/1674-1056/23/4/048103

• graphene
• nanoparticles
• chemiluminescence
• biosensers

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-luminonH(2)O(2) 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.

• 出版日期2014-4
• 单位北京交通大学; 中国石油大学（北京）