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Updated: Feb 3, 2026
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A Microfluidic Chip for the Versatile Chemical Analysis of Single Cells
Published on: October 15, 2013
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Smart Hydrogel Microfluidics for Single-Cell Multiplexed Secretomic Analysis with High Sensitivity
Myat Noe Hsu1,2,3, Shih-Chung Wei2,3, Song Guo2
1NUS Graduate School for Integrative Sciences and Engineering, National University of Singapore, Singapore, 117456, Singapore.
Small (Weinheim an Der Bergstrasse, Germany)
|October 19, 2018
Summary
This study introduces a novel smart hydrogel biosensor platform for sensitive, high-throughput detection of single-cell protein secretions. The technology reveals cellular secretion heterogeneity, aiding in understanding health and disease.
Area of Science:
- Biomedical Engineering
- Cell Biology
- Biochemistry
Background:
- Secreted proteins are crucial for cellular functions, impacting health and disease.
- Cellular heterogeneity necessitates sensitive measurement of low-abundance protein secretions from individual cells.
- Understanding single-cell activities requires precise analysis of secreted biomolecules.
Purpose of the Study:
- To develop an integrated platform for sensitive detection of single-cell secretions.
- To enable high-throughput analysis of cellular secretion heterogeneity.
- To provide a flexible tool for precise biological assays of clinically relevant proteins.
Main Methods:
- Development of smart hydrogel immunosensors encapsulated within droplets with single cells.
- Utilizing temperature-induced hydrogel volume phase transition for analyte concentration.
- Immunoassay for capturing and detecting target secreted proteins.
Main Results:
- Demonstrated distinct heterogeneity in live cell secretions from over 6000 cells within 1 hour.
- Successfully detected low-abundance secretions like interleukin-6, interleukin-8, and monocyte chemoattractant protein-1.
- Validated the platform with both suspended (HL60) and adherent (MCF7, MDA-MB-231) cell lines.
Conclusions:
- The smart hydrogel platform enables sensitive and high-throughput single-cell secretion analysis.
- This technology accurately captures cellular heterogeneity in protein secretion.
- The flexible platform is a novel tool for precise biological assays of various clinically relevant secretions.
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