Applications of Surface Plasmon Resonance for Advanced Studies Involving Nucleic Acids.

Area of Science:

• Biochemistry
• Molecular Biology
• Nanotechnology

Background:

• Surface plasmon resonance (SPR) is a label-free technique for real-time analysis of molecular interactions.
• It measures binding affinities and kinetics using minimal sample quantities.
• SPR is crucial for studying dynamic nucleic acid complexes that are challenging for other methods.

Purpose of the Study:

• To provide a guideline for setting up SPR experiments for nucleic acid interactions.
• To detail methods for nucleic acid immobilization, analyte binding analysis, and kinetic measurements.
• To aid in understanding molecular-level binding mechanisms in nucleic acid nanotechnology.

Main Methods:

• Immobilization of nucleic acids (ligands) onto sensor surfaces using biotin-streptavidin, metal ion-based affinity, or amine coupling.
• Injection of analytes over the immobilized nucleic acids to monitor binding via refractive index changes.
• Analysis of binding kinetics, affinity, and data interpretation.

Main Results:

• Demonstrates the utility of SPR for characterizing nucleic acid interactions with proteins and small molecules.
• Highlights successful applications in nucleic acid-probe immobilization, aptamer studies, and biomolecular interactions.
• Provides a framework for assessing binding affinities and kinetics of nucleic acid complexes.

Conclusions:

• SPR is an effective technique for elucidating nucleic acid binding mechanisms.
• This review facilitates SPR application in nucleic acid research and nanotechnology.
• Future developments in SPR hold promise for advancing the field of nucleic acid studies.