Synthesis and Characterization of Bis‐1,2,3‐Triazole Ligand and its Corresponding Copper Complex for the Development of Electrochemical Affinity Biosensors - Archive ouverte HAL Access content directly
Journal Articles Chemistry - A European Journal Year : 2021

Synthesis and Characterization of Bis‐1,2,3‐Triazole Ligand and its Corresponding Copper Complex for the Development of Electrochemical Affinity Biosensors

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Hussein Kanso
  • Function : Author
Amani Ben Jrad
  • Function : Author
Wassim Rammal
  • Function : Author
Christian Philouze
  • Function : Author
Fabrice Thomas
Thierry Noguer
  • Function : Author

Abstract

The bis-triazole ligand and its corresponding copper complexes were synthesized and characterized for the first time and proposed as new labels for the development of electrochemical aptasensors. The bis-triazole ligand was prepared from methyl 1,6-heptadiyne-4-carboxylate and 2-(azidomethyl)phenol using classical CuAAC in presence of different copper salts. The X-ray structure of bis-triazole showed a symmetry center (C1). UV-Vis and X-band EPR spectra showed that the coordination capacity of the bis-triazole ligand was improved in the presence of triethylamine due to deprotonation of the triazole and phenolate moieties. After complexation with copper, the obtained complex was successfully attached to an anti-estradiol aptamer through thiol-maleimide coupling, and the resulting labelled aptamer was immobilized on a carbon screen-printed electrode by carbodiimide coupling. The electrochemical response of the resulting sensor was shown to decrease in the presence of estradiol, demonstrating that the developed complexes can be applied for the development of aptasensors.
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hal-03270221 , version 1 (24-06-2021)

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Hussein Kanso, Amani Ben Jrad, Nicolas Inguimbert, Wassim Rammal, Christian Philouze, et al.. Synthesis and Characterization of Bis‐1,2,3‐Triazole Ligand and its Corresponding Copper Complex for the Development of Electrochemical Affinity Biosensors. Chemistry - A European Journal, 2021, ⟨10.1002/chem.202100250⟩. ⟨hal-03270221⟩
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