Chinese Journal of Applied Chemistry ›› 2024, Vol. 41 ›› Issue (1): 128-136.DOI: 10.19894/j.issn.1000-0518.230035

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Small Molecule Recognition Based Photoelectrochemical Sensor for Histidine Detection

Cui-Cui YANG, Xiao-Xue YE()   

  1. College of Chemistry and Chemical Engineering,College of Health Science and Engineering,Hubei University,Wuhan 430072,China
  • Received:2023-02-22 Accepted:2023-05-18 Published:2024-01-01 Online:2024-01-30
  • Contact: Xiao-Xue YE
  • About author:yexxchem@hubu.edu.cn
  • Supported by:
    the National Natural Science Foundation of China(22276047)

Abstract:

Abnormal change of histidine (His) level in serum may be associated with various diseases, making the detection of His clinically significant. Photoelectrochemical (PEC) sensing has the potential to be a promising clinical detection method due to its high sensitivity, simple operation, low cost, and ease of miniaturization. However, to date, PEC sensing for His detection has not been reported due to the lack of suitable recognition mechanisms. In this study, we construct a PEC sensing interface using a small molecule probe as the recognition unit, and the selectivity of the sensor is improved through a specific reaction between the probe and His. The developed (PEC) sensor has good selectivity, stability, and reproducibility, which can be used for the quantitative detection of His in biological samples.

Key words: Photoelectrochemical sensing, Histidine, Small molecular probes

CLC Number: