Surface Plasmon Resonance Aptasensors: Emerging Design and Deployment Landscape.

Area of Science:

• Biomedical Engineering
• Analytical Chemistry
• Molecular Biology

Background:

• Surface Plasmon Resonance (SPR) biosensors detect biomolecular interactions via changes in refractive index at metal-dielectric interfaces.
• Traditional SPR biosensors often use antibodies, but aptamers offer advantages in stability and specificity.
• Aptamers are rationally designed oligonucleotide biomolecules with high affinity for diverse targets.

Purpose of the Study:

• To review the literature on SPR biosensors utilizing aptamers (SPR aptasensors).
• To provide expert commentary on the current state and future potential of SPR aptasensors.
• To highlight applications in drug discovery, disease diagnosis, and monitoring.

Main Methods:

• Review of scientific literature on SPR biosensor technology and aptamer applications.
• Analysis of SPR principles including evanescent wave propagation and plasmonic excitation.
• Discussion of aptamer design and their integration into SPR sensor platforms.

Main Results:

• SPR aptasensors enable label-free, real-time monitoring of biomolecular interactions.
• Aptamers provide high specificity and affinity, overcoming limitations of traditional antibody probes.
• The integration of aptamers significantly enhances the capabilities of SPR biosensing.

Conclusions:

• SPR aptasensors represent a powerful tool for advancing drug discovery and disease diagnostics.
• The field is rapidly evolving with promising clinical and industrial prospects.
• Further development of SPR aptasensors will enhance real-time kinetic characterization and targeted detection.