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Plasmonic Trapping and Release of Nanoparticles in a Monitoring Environment

Plasmonic Trapping and Release of Nanoparticles in a Monitoring Environment

Published on: April 4, 2017

Plasmonic nanostructures for nano-scale bio-sensing.

Taerin Chung¹, Seung-Yeol Lee, Eui Young Song

¹National Creative Research Center for Active Plasmonics Application Systems, Inter-University Semiconductor Research Center, Seoul National University, Gwanak-Gu Gwanakro 1, Seoul 151-744, Korea. taerinc@gmail.com

Sensors (Basel, Switzerland)

|February 21, 2012

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Localized surface plasmon resonance (LSPR) nanostructures offer sensitive and high-resolution biological detection. This review overviews plasmonic nanostructures for advanced nano-scale sensing applications.

Area of Science:

Nanotechnology
Biophysics
Optical Sensing

Background:

Optical properties of nanostructures are crucial for biological detection.
Localized surface plasmon resonance (LSPR) offers high sensitivity and resolution in sensing.
Nano-scale biological measurements benefit from LSPR-based refractive index sensing.

Purpose of the Study:

To overview various plasmonic nanostructures for biological sensing.
To explain underlying physical phenomena like plasmonic hybridization and Fano resonance.
To provide design guidelines for nanostructures in sensing applications.

Main Methods:

Review of existing literature on plasmonic nanostructures for sensing.
Qualitative descriptions of nanostructure properties.

Keywords:

nanostructure optical sensors plasmonic sensors surface plasmon resonance

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Explanation of physical principles governing plasmonic behavior.

Main Results:

Identification of diverse plasmonic nanostructures as potential sensing components.
Understanding of how plasmonic hybridization and Fano resonance enhance sensing.
Establishment of design considerations for specific wavelength ranges and target materials.

Conclusions:

Plasmonic nanostructures are effective for sensitive nano-scale biological detection.
LSPR-based sensing relies on refractive index changes.
This work provides a foundation for designing advanced plasmonic sensors.