Estimation of binding constants by capillary electrophoresis

Area of Science:

• Analytical Chemistry
• Biochemistry
• Physical Chemistry

Background:

• Capillary electrophoresis (CE) is a powerful separation technique.
• Measuring binding constants is crucial in drug discovery and development.
• Affinity CE offers a sensitive method for studying molecular interactions.

Purpose of the Study:

• To review recent advancements in affinity capillary electrophoresis for binding constant estimation.
• To discuss mathematical models and experimental considerations for accurate measurements.
• To highlight novel methodologies and recent applications in the field.

Main Methods:

• Review of mathematical equations for 1:1 binding stoichiometry.
• Discussion of experimental considerations for affinity CE.
• Introduction of advanced techniques like partial filling and multiple-step ligand injection.

Main Results:

• Recent trends in affinity CE for binding constant determination are presented.
• The review synthesizes methodologies and applications from the last three years.
• Key experimental factors influencing accuracy are detailed.

Conclusions:

• Affinity CE is a valuable tool for quantifying binding constants.
• Recent methodologies enhance the accuracy and scope of CE-based binding studies.
• This review provides a comprehensive overview of current practices and future directions.