Related Experiment Video
Updated: Apr 12, 2026
06:00
Author Spotlight: Development of a Smartphone-Enhanced Paper-Based Device for Rapid Dengue NS1 Detection
Published on: January 26, 2024
2.3K
Medically relevant assays with a simple smartphone and tablet based fluorescence detection system.
Piotr Wargocki1, Wei Deng2, Ayad G Anwer3
1ARC Centre of Excellence in Nanoscale Biophotonics, Macquarie University, North Ryde 2109, NSW, Australia. piotr.wargocki@mq.edu.au.
Sensors (Basel, Switzerland)
|May 27, 2015
Summary
This study introduces a simple, portable smartphone-based bioassay platform for fluorescent assays. The device achieves sensitive detection of collagenase and trypsin, showing potential for point-of-care medical diagnostics.
Area of Science:
- Biomedical Engineering
- Analytical Chemistry
- Medical Diagnostics
Background:
- Conventional biomedical sensors often require specialized add-ons.
- Cell phones and smartphones offer potential for reconfiguration into biomedical sensor devices.
Purpose of the Study:
- To develop a simple, portable, and cost-effective smartphone-based bioassay platform.
- To enable fluorescent assays in solution for various diagnostic applications.
Main Methods:
- A system comprising a tablet, polarizer, smartphone camera, and dark box was designed.
- The tablet screen served as the excitation source for fluorescent assays in a well plate.
- Smartphone camera captured fluorescence emission after light separation by a polarizer.
Main Results:
- The platform successfully quantified collagenase (lowest concentration 3.75 µg/mL) and trypsin (lowest amount 930 pg).
- Assay results were comparable to those obtained using a standard microplate reader.
- The device demonstrated sensitivity suitable for clinical diagnostics.
Conclusions:
- The developed smartphone-based bioassay platform is a viable tool for sensitive and portable biochemical analysis.
- This technology holds promise for point-of-care diagnostics of conditions like arthritis, cystic fibrosis, and pancreatitis.
