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Updated: Jul 18, 2026

Real-time Monitoring of Ligand-receptor Interactions with Fluorescence Resonance Energy Transfer
Published on: August 20, 2012
Does fluorescence of ANS reflect its binding to PAMAM dendrimer?
D Shcharbin1, M Szwedzka, M Bryszewska
1Department of General Biophysics, University of Lodz, 12/16 Banacha Street, 90-237 Lodz, Poland.
Abstract:
The analysis of binding between cationic PAMAM G5 dendrimer and anionic fluorescent probe using fluorescence and equilibrium dialysis has been made. It was found that at low concentrations of ANS the double fluorimetric titration technique can be successfully used for quantitative analysis of binding of ANS to dendrimer. Based on fluorescence and dialysis data the constants of binding and the number of binding centers were calculated for binding of ANS to PAMAM G5 dendrimer: K(b) is approx. (0.5-1)x10(5)M(-1) and n is (0.5-0.7).

