Rapid, Portable, Multiplexed Detection of Bacterial Pathogens Directly from Clinical Sample Matrices
Related Experiment Video
Updated: Nov 4, 2026
One-day Workflow Scheme for Bacterial Pathogen Detection and Antimicrobial Resistance Testing from Blood Cultures
Published on: July 9, 2012
Christopher R Phaneuf1, Betty Mangadu2, Matthew E Piccini3,4
1Biotechnology and Bioengineering, Sandia National Laboratories, Livermore, CA 94551, USA. crphane@sandia.gov.
Insights
A new portable microfluidic device enables rapid, simultaneous detection of multiple bacterial pathogens causing childhood enteric and diarrheal diseases using minimal stool samples.
Area of Science:
- Medical diagnostics
- Microfluidics
- Infectious disease research
Background:
- Enteric and diarrheal diseases cause over half a million childhood deaths annually in developing economies.
- Rapid and accurate pathogen detection is crucial for effective treatment and control.
Purpose of the Study:
- To develop a portable, microfluidic platform for simultaneous, multiplexed detection of bacterial enteric pathogens.
- To enable fast and sensitive immunoassays directly from complex clinical samples like stool.
Main Methods:
- Development of a portable microfluidic platform.
- Application of sensitive immunoassays for pathogen detection.
- Utilized minimal sample volume (1 µL) for multiplexed analysis.
Main Results:
- Simultaneous, multiplexed detection of four key bacterial pathogens was achieved.
- Assays were performed directly from stool samples with minimal preparation.
- Detection was completed in under 20 minutes.
Conclusions:
- The developed microfluidic platform offers a rapid, sensitive, and portable solution for diagnosing enteric and diarrheal diseases.
- This technology has the potential to significantly impact childhood mortality in resource-limited settings.
Abstract:
Enteric and diarrheal diseases are a major cause of childhood illness and death in countries with developing economies. Each year, more than half of a million children under the age of five die from these diseases. We have developed a portable, microfluidic platform capable of simultaneous, multiplexed detection of several of the bacterial pathogens that cause these diseases. This platform can perform fast, sensitive immunoassays directly from relevant, complex clinical matrices such as stool without extensive sample cleanup or preparation. Using only 1 µL of sample per assay, we demonstrate simultaneous multiplexed detection of four bacterial pathogens implicated in diarrheal and enteric diseases in less than 20 min.
More Related Videos
11:09Multiplex Detection of Bacteria in Complex Clinical and Environmental Samples using Oligonucleotide-coupled Fluorescent Microspheres
Published on: October 23, 2011
11:00High-throughput Detection of Respiratory Pathogens in Animal Specimens by Nanoscale PCR
Published on: November 28, 2016
Related Concept Videos
01:25Rapid Identification of Pathogens
01:24Automated Microbial Diagnostics