In vivo monitoring of cerebral glucose with an updated on-line electroanalytical system

Anal Bioanal Chem. 2019 Sep;411(23):5929-5935. doi: 10.1007/s00216-019-02002-x. Epub 2019 Jul 23.

Abstract

Because cerebral species involve rapid events, increasing the temporal resolution to realize in vivo near-real-time measurements is desirable. Here, we aimed to improve the low resolution of our previous on-line electroanalytical system by decreasing the dead volume and reducing molecular dispersion. This updated system has advantages of elevated time resolution and accelerated analysis for on-line monitoring of glucose versus the previous system. Finally, this new system was successfully applied to continuous measurement of cerebral glucose in vivo during global ischemia/reperfusion events. This study is expected to offer a reliable on-line analytical platform for continuous monitoring of important species associated with fast physiological and pathological events in vivo. Graphical abstract.

Keywords: Electroanalytical; Glucose; In vivo; Microdialysis.

MeSH terms

  • Animals
  • Biosensing Techniques / instrumentation
  • Brain / metabolism*
  • Brain Chemistry
  • Electrochemical Techniques / instrumentation*
  • Equipment Design
  • Glucose / analysis
  • Glucose / metabolism*
  • Male
  • Microdialysis / instrumentation*
  • Rats, Sprague-Dawley

Substances

  • Glucose