Related Experiment Video
Updated: Oct 19, 2025
09:16
Rapid Fluorescence-based Characterization of Single Extracellular Vesicles in Human Blood with Nanoparticle-tracking Analysis
Published on: January 7, 2019
10.0K
High-Throughput Single-Cell Extracellular Vesicle Secretion Analysis on a Desktop Scanner without Cell Counting.
Fengjiao Zhu1,2, Yahui Ji1, Linmei Li1
1Department of Biotechnology, Dalian Institute of Chemical Physics, Chinese Academy of Sciences, Dalian 116023, China.
Analytical Chemistry
|September 22, 2021
Summary
A new, low-cost method uses a home scanner for high-throughput single-cell extracellular vesicle (EV) secretion analysis. This affordable technology enables direct comparison of EV phenotypes and secretion rates, advancing health and disease research.
Area of Science:
- Biotechnology
- Cell Biology
- Nanotechnology
Background:
- Single-cell extracellular vesicle (EV) analysis offers insights into cellular heterogeneity and intercellular communication in health and disease.
- Current methods are limited by expensive and bulky instrumentation, hindering widespread adoption.
Purpose of the Study:
- To develop a cost-effective, high-throughput platform for single-cell EV secretion analysis using accessible technology.
- To enable direct quantification and comparison of EV secretion from different cell types and phenotypes.
Main Methods:
- Integration of gold nanoparticle-enhanced silver staining with Poisson distribution analysis.
- Utilization of a standard home-use scanner for data acquisition, eliminating the need for cell counting.
- Development of titration curves from population samples for single-cell EV quantification.
Main Results:
- Successful high-throughput single-cell EV secretion analysis using a home scanner.
- Comparable results to immunofluorescence methods for oral squamous cell carcinoma and patient-derived primary cells.
- Quantification of secreted EVs per cell, enabling direct comparison of secretion numbers and rates between EV phenotypes.
Conclusions:
- The developed platform is simple, affordable, and easy to operate.
- This technology has the potential to become a widely accessible tool for basic and clinical research in EV biology.
- Facilitates deeper understanding of non-genetic cellular heterogeneity through EV-mediated intercellular communication.
