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Updated: Jul 17, 2025

Real Time Measurements of Membrane Protein:Receptor Interactions Using Surface Plasmon Resonance SPR
Published on: November 29, 2014
Using surface plasmon resonance, capillary electrophoresis and diffusion-ordered NMR spectroscopy to study drug
Alena Libánská1, Tomáš Špringer2, Lucie Peštová2
1Institute of Macromolecular Chemistry, Czech Academy of Sciences, Prague, Czech Republic.
Abstract:
Nanomedicines, including polymer nanocarriers with controlled drug release, are considered next-generation therapeutics with advanced therapeutic properties and reduced side effects. To develop safe and efficient nanomedicines, it is crucial to precisely determine the drug release kinetics. Herein, we present application of analytical methods, i.e., surface plasmon resonance biosensor technology (SPR), capillary electrophoresis, and 1H diffusion-ordered nuclear magnetic resonance spectroscopy, which were innovatively applied for drug release determination. The methods were optimised to quantify the pH-triggered release of three structurally different drugs from a polymer carrier. The suitability of these methods for drug release characterisation was evaluated and compared using several parameters including applicability for diverse samples, the biological relevance of the experimental setup, method complexity, and the analysis outcome. The SPR method was the most universal method for the evaluation of diverse drug molecule release allowing continuous observation in the flow-through setting and requiring a small amount of sample.
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