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Recent Advances in Electrochemical Immunosensors
Benoît Piro1, Steeve Reisberg2
1University Paris Diderot, Sorbonne Paris Cité, ITODYS, UMR 7086 CNRS, 15 rue J-A de Baïf, 75205 Paris CEDEX 13, France. piro@univ-paris-diderot.fr.
Sensors (Basel, Switzerland)
|April 8, 2017
Summary
Recent advances in immunosensors utilize nanomaterials for faster, sensitive detection of biomarkers and pollutants. These developments improve device performance for clinical diagnostics and environmental monitoring.
Area of Science:
- Electrochemistry
- Nanotechnology
- Analytical Chemistry
Background:
- Growing demand for rapid, sensitive, and portable detection devices in clinical diagnostics and environmental monitoring.
- Need for improved signal amplification strategies to meet realistic performance requirements.
Purpose of the Study:
- To review recent advances in immunosensor technology, focusing on signal amplification and substrate materials.
- To systematically compare analytical performances of various immunosensor components and detection principles.
Main Methods:
- Review of literature from 2012 to early 2017 focusing on immunosensor development.
- Analysis of signal amplification techniques including enzymatic reactions and nanomaterials.
- Comparison of different electrode substrates: classical, carbon-based nanostructures, nanoparticles, and ionic liquids.
Main Results:
- Nanomaterials like carbon nanotubes, graphene, metallic nanoparticles, and magnetic beads significantly enhance immunosensor performance.
- Various substrates, including advanced carbon materials and ionic liquids, offer improved collection, binding, and transduction capabilities.
- Chronological and principle-based comparison of analytical performances highlights key advancements.
Conclusions:
- Recent progress in nanomaterials and substrate engineering has substantially improved immunosensor capabilities.
- These advancements are crucial for achieving the sensitivity and portability required for effective clinical diagnostics and environmental monitoring.
- The field continues to evolve, driven by the integration of novel materials and amplification strategies.