Related Experiment Video
Updated: Aug 21, 2026

06:43
In Vivo Proximity Biotinylation for Protein Interaction Studies in Paramecium tetraurelia
Published on: September 12, 2025
A regioregular polyalkylthiophene bearing covalently-linked biotin, and its interaction with avidin in solution and
Fouzi Mouffouk1, Simon J Higgins, Stewart J Brown
1Department of Chemistry, University of Liverpool, UK.
Abstract:
A regioregular copolymer of 3-hexylthiophene and 3-(6-hydroxyhex-1-yl)thiophene has been functionalised with biotin hydrazide; binding of avidin to the biotin moieties causes drastic changes to the absorption spectrum of the polymer in solution, and to the electrochemistry and conductivity of the polymer in thin films.

