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Updated: Jun 28, 2025

A Microfluidic Chip for the Versatile Chemical Analysis of Single Cells

A Microfluidic Chip for the Versatile Chemical Analysis of Single Cells

Published on: October 15, 2013

Highly Multiplexing, Throughput and Efficient Single-Cell Protein Analysis with Digital Microfluidics.

Linfeng Cai¹, Li Lin¹, Shiyan Lin¹

¹The MOE Key Laboratory of Spectrochemical Analysis & Instrumentation, the Key Laboratory of Chemical Biology of Fujian Province, State Key Laboratory of Physical Chemistry of Solid Surfaces, Collaborative Innovation Center of Chemistry for Energy Materials, Department of Chemical Biology, Department of Chemical Engineering, College of Chemistry and Chemical Engineering, Xiamen University, Xiamen, 361005, China.

|April 12, 2024

Summary

This summary is machine-generated.

A novel digital microfluidics protein sequencing (DMF-Protein-seq) method enables high-throughput, single-cell protein analysis. This DNA-based approach enhances cellular phenotype investigation and drug monitoring capabilities.

Keywords:

digital microfluidics protein detection sequencing single cell

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Area of Science:

Biotechnology
Molecular Biology
Cell Biology

Background:

Proteins are vital for cellular functions, making sensitive detection crucial for understanding cellular phenotypes.
Existing protein analysis methods can be limited in throughput and cell utilization.

Purpose of the Study:

To develop a high-throughput, high-multiplexing protein sequencing method using digital microfluidics.
To enable single-cell protein analysis with high efficiency and accuracy.

Main Methods:

Developed a digital microfluidics protein sequencing (DMF-Protein-seq) system using DNA-tagged antibodies and cell barcodes.
Implemented a split-and-pool strategy on the digital microfluidics chip for enhanced throughput.
Utilized a low-adsorbed hydrophobic surface and isolated reaction spaces for high cell utilization.

Main Results:

The DMF-Protein-seq system achieved high multiplexing, throughput, and cell utilization (>90%).
Detected approximately 1800 cells simultaneously per experimental run with high mapping reads (>90%).
Successfully transformed protein information into DNA sequencing readouts for single-cell analysis.

Conclusions:

The proposed DMF-Protein-seq method offers a sensitive and efficient platform for single-cell protein analysis.
This technology has significant potential for cell classification and drug monitoring based on protein expression.
The integration of digital microfluidics and DNA sequencing overcomes previous throughput limitations.