• 文献标题:   Graphene oxide nanoribbon catalysis of gold nanoreaction and its application to SERS quantitative analysis of ultratrace glucose
  • 文献类型:   Article, Early Access
  • 作  者:   YAO DM, LIU QY, JIANG ZL
  • 作者关键词:   graphene oxide nanoribbon, nanocatalysi, glucose, 4mercaptophenylboronic acid, sers
  • 出版物名称:   CHEMICAL PAPERS
  • ISSN:   2585-7290 EI 1336-9075
  • 通讯作者地址:   Guangxi Normal Univ
  • 被引频次:   1
  • DOI:   10.1007/s11696-019-00947-y EA SEP 2019
  • 出版年:  

▎ 摘  要

Catalysis of four nanostructures, including graphene oxide nanoribbons (GONR), graphene oxide, N-doped carbon quantum dot and Ca-doped carbon quantum dot is examined on the reaction HAuCl4-trisodium citrate to form nanogold (AuNP). GONR exhibited strongest catalysis and appeared a SERS peak at 1615 cm(-1) in the presence of Victoria blue 4R molecular probes in the formed AuNP sol substrate. Upon addition of 4-mercaptophenylboronic acid (MPBA), it adsorbs on GONR to form MPBA-GONR conjugates that caused the SERS peak decreasing due to its catalysis decreasing. Upon addition of glucose, it reacts with MPBA to form MPBA-glucose complex to increase the SERS peak linearly owing to GONR catalysis recovering. The increased SERS signal (Delta I) is linear to glucose concentration in the range of 0.33-5.33 nM, with a detection limit of 0.13 nM. Thus, a new and highly sensitive SERS quantitative analysis method is established for detection of glucose, based on GONR catalytic amplification.