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Updated: Mar 22, 2026

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

Dispersion and shape engineered plasmonic nanosensors.

Hyeon-Ho Jeong^1,2, Andrew G Mark¹, Mariana Alarcón-Correa^1,3

¹Max Planck Institute for Intelligent Systems, Heisenbergstrasse 3, 70569 Stuttgart, Germany.

Nature Communications

|April 20, 2016

Summary

This summary is machine-generated.

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Researchers enhanced localized surface plasmon resonance (LSPR) biosensor sensitivity by engineering chiral nanoparticle dispersion. This breakthrough offers improved refractive index sensitivity and figures of merit for advanced biosensing applications.

Area of Science:

Nanotechnology
Plasmonics
Biosensing

Background:

Localized surface plasmon resonance (LSPR) biosensors offer modular, low-cost sensing.
Current LSPR biosensors face limitations in sensitivity and figures of merit (FOMs).

Purpose of the Study:

To enhance the sensitivity and FOMs of LSPR biosensors.
To introduce a novel approach using engineered material dispersion functions.

Main Methods:

Engineering the material dispersion function of chiral nanoparticles.
Utilizing dispersion and shape engineering of nanoparticles.
Analyzing polarization-dependent extinction spectra.

Main Results:

Achieved remarkable refractive index sensitivities of 1,091 nm/RIU at 921 nm.

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Utilization of Plasmonic and Photonic Crystal Nanostructures for Enhanced Micro- and Nanoparticle Manipulation

Utilization of Plasmonic and Photonic Crystal Nanostructures for Enhanced Micro- and Nanoparticle Manipulation

Published on: September 27, 2011

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Last Updated: Mar 22, 2026

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

Colloidal Synthesis of Nanopatch Antennas for Applications in Plasmonics and Nanophotonics

Colloidal Synthesis of Nanopatch Antennas for Applications in Plasmonics and Nanophotonics

Published on: May 28, 2016

Utilization of Plasmonic and Photonic Crystal Nanostructures for Enhanced Micro- and Nanoparticle Manipulation

Utilization of Plasmonic and Photonic Crystal Nanostructures for Enhanced Micro- and Nanoparticle Manipulation

Published on: September 27, 2011

Obtained FOMs exceeding 2,800 RIU(-1).

Demonstrated polarization-dependent extinction with bipolar peaks and nulls for precise refractive index tracking.

Showcased sensitivity to surface-specific binding events via biotin-avidin coupling.

Conclusions:

Engineered chiral nanoparticles significantly boost LSPR biosensor performance.
The developed sensing modality provides strong optical contrast in complex biological media.
This technique holds promise for sensitive detection of biomolecular interactions.