Skip to main content
Log in

Voltammetric studies of glutathione transfer across arrays of liquid–liquid microinterfaces for sensing applications

  • Original Article
  • Published:
Amino Acids Aims and scope Submit manuscript

Abstract

The simple and facilitated transfer of tripeptide glutathione across the water/2-nitrophenyl octhyl ether interface was studied via cyclic voltammetry at interface between two immiscible electrolyte solutions (ITIES). The micro-perforated membrane prepared with a laser with a femtosecond pulse was used for mechanical stabilization of the interface. The method of cyclic voltammetry was used to study the passive and facilitated interfacial transfer of glutathione and its complex with the crown ether dibenzo-18-crown-6 (DB18C6).The glutathione mass transfer mechanism was established and substantiated, the diffusion coefficients, thermodynamic characteristics of interphase transfer and the constant of complexation of the glutathione by DB18C6 were determined. Square wave voltammetry based on facilitated transfer was used for more accurate and sensitive determination of glutathione low detection limit (0.8 μM) with wide linear dynamic range (from 3.0 to 80 μM) was reached. The influence of various potentially interfering ions on the voltammetric determination of glutathione has also been investigated. The method developed was applied to determine glutathione in aqueous solutions and malt extract.

This is a preview of subscription content, log in via an institution to check access.

Access this article

Price excludes VAT (USA)
Tax calculation will be finalised during checkout.

Instant access to the full article PDF.

Fig. 1
Fig. 2
Fig. 3
Fig. 4
Fig. 5
Fig. 6
Fig. 7

Similar content being viewed by others

References

Download references

Acknowledgements

We would like to acknowledge financial support from state assignment of the Russian Federation and RTU MIREA.

Funding

State assignment of the Russian Federation, 0706-2020-0020.

Author information

Authors and Affiliations

Authors

Corresponding author

Correspondence to Leonid Martynov.

Ethics declarations

Conflict of interest

The authors declare that they have no conflict of interest or competing interests.

Consent to participate and publish

This study did not involve people, their data or other personal information.

Research involves humans or animals participant

No humans or animals, their data or biological materials were involved in this study.

Additional information

Handling editor: Z. Cheng.

Publisher's Note

Springer Nature remains neutral with regard to jurisdictional claims in published maps and institutional affiliations.

Rights and permissions

Reprints and permissions

About this article

Check for updates. Verify currency and authenticity via CrossMark

Cite this article

Poklonnov, V., Martynov, L., Astafiev, A. et al. Voltammetric studies of glutathione transfer across arrays of liquid–liquid microinterfaces for sensing applications. Amino Acids 54, 911–922 (2022). https://doi.org/10.1007/s00726-022-03166-0

Download citation

  • Received:

  • Accepted:

  • Published:

  • Issue Date:

  • DOI: https://doi.org/10.1007/s00726-022-03166-0

Keywords

Navigation