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Updated: May 20, 2026
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A Label-free Technique for the Spatio-temporal Imaging of Single Cell Secretions
Published on: November 23, 2015
Towards a high-throughput label-free detection system combining localized-surface plasmon resonance and microfluidics
Yi Zhang1, Yunfang Tang, Yi-Heui Hsieh
1CAS Key Lab for Biological Effects of Nanomaterials and Nanosafety, National Center for Nanoscience and Technology, Beijing, 100190, China.
Lab on a Chip
|July 10, 2012
Summary
This study introduces an integrated platform for multiplexed, label-free protein analysis using localized-surface plasmon resonance (LSPR) and microfluidic chips. The developed optical bench enables quantitative detection with a standard UV-Vis spectrophotometer, improving assay throughput.
Area of Science:
- Biotechnology
- Analytical Chemistry
- Nanotechnology
Background:
- Protein analysis is crucial in diagnostics and research.
- Current methods can be time-consuming and require labels.
- Multiplexed and label-free detection offers significant advantages.
Purpose of the Study:
- To develop an integrated platform for multiplexed, label-free protein analysis.
- To utilize localized-surface plasmon resonance (LSPR) with microfluidic chips.
- To enable quantitative protein detection using a standard UV-Vis spectrophotometer.
Main Methods:
- Fabrication of an integrated microfluidic chip.
- Integration of localized-surface plasmon resonance (LSPR) sensing.
- Development of an optical bench for UV-Vis spectrophotometer detection.
- Implementation of a label-free assay for protein quantification.
Main Results:
- Successful integration of LSPR and microfluidics for protein analysis.
- Demonstration of multiplexed detection capabilities.
- Achieved quantitative protein analysis without the need for labels.
- Improved assay throughput compared to conventional methods.
Conclusions:
- The integrated LSPR-microfluidic platform provides a powerful tool for efficient protein analysis.
- The developed system enables sensitive and quantitative detection.
- This approach offers a streamlined workflow for multiplexed biomarker discovery and diagnostics.
