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Published on: August 19, 2020
Artificial Intelligence-Supported Colorimetric Multibiomarker Sensor to Enable Critical Neonatal Monitoring
Alejandra Castelblanco1,2, Elisabetta Ruggeri3, Giusy Matzeu3
1Computational Health Center, Helmholtz Center Munich, Neuherberg 85764 Germany.
ACS Sensors
|May 28, 2026
Summary
A new noninvasive, AI-powered wearable sensor uses colorimetric analysis of body fluids to monitor vital signs in newborns. This silk-based patch tracks temperature, pH, sodium, and glucose, offering a less invasive alternative for neonatal care.
Area of Science:
- Biomedical Engineering
- Wearable Technology
- Neonatal Monitoring
Background:
- Current neonatal monitoring methods are often invasive, costly, and uncomfortable.
- There is a critical need for noninvasive, real-time monitoring solutions for vulnerable neonates.
Purpose of the Study:
- To develop and validate a noninvasive, AI-supported multibiomarker sensor for critically ill preterm neonates.
- To enable real-time tracking of key physiological parameters through colorimetric analysis of body fluids.
Main Methods:
- A silk-based wearable patch with twelve colorimetric inks was developed.
- The sensor tracks temperature, pH, sodium, and glucose via colorimetric analysis of transepidermal fluid.
- Deep learning algorithms were employed for precise quantification of colorimetric responses.
Main Results:
- The sensor demonstrated high precision and reproducibility in clinically relevant neonatal ranges.
- AI-based quantification achieved high-precision estimates for all monitored biomarkers.
- The sensor maintained performance under various challenging clinical conditions, including humidity and movement.
Conclusions:
- This noninvasive, AI-supported sensor offers a promising new approach for intensified monitoring in neonatal intensive care.
- The miniaturized, wearable design and robust performance cater to the critical needs of high-risk infant populations.
- Transepidermal fluid analysis via this sensor opens new avenues for noninvasive clinical monitoring.

