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Related Experiment Video

Updated: Oct 21, 2025

A Silicon-tipped Fiber-optic Sensing Platform with High Resolution and Fast Response

A Silicon-tipped Fiber-optic Sensing Platform with High Resolution and Fast Response

Published on: January 7, 2019

All-in-Fiber Electrochemical Sensing.

I Richard¹, B Schyrr¹, S Aiassa^2,3

¹Institute of Materials, École Polytechnique Fédérale de Lausanne, 1015 Lausanne, Switzerland.

ACS Applied Materials & Interfaces

|September 7, 2021

Summary

This summary is machine-generated.

Researchers developed novel fiber-based electrochemical sensors using thermal drawing. These scalable sensors enable high-throughput analysis and portable diagnostics, advancing electrochemical sensing applications.

Keywords:

electrochemical sensors fiber technology metallic glasses multimaterial fibers thermal drawing

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Area of Science:

Analytical Chemistry
Materials Science
Nanotechnology

Background:

High-throughput printing technologies enable electrochemical sensors but are limited to 2D geometries and larger feature sizes.
Existing methods lack scalability and novel architectures for advanced applications.

Purpose of the Study:

To develop scalable, fiber-based electrochemical sensors with customizable architectures.
To demonstrate the fabrication and performance of these novel electrochemical devices.

Main Methods:

Utilized multimaterial thermal drawing to co-process polymer composites and metallic glass.
Created electroactive and pseudoreference electrodes embedded within an insulating polymer cladding fiber.
Fabricated two configurations: fiber tip sensor and capillary cell sensor.

Main Results:

Successfully fabricated monolithically integrated electrochemical devices with fiber-based architectures.
Demonstrated direct detection and quantification of paracetamol using cyclic voltammetry and chronoamperometry.
Showcased a portable analyzer with an "electrochemical pipet tip" for microliter-volume analysis.

Conclusions:

The thermal drawing technique enables scalable fabrication of novel fiber-based electrochemical sensors.
These sensors offer versatile architectures for efficient electrochemical sensing in various applications.
The developed technology paves the way for advanced personal care and surgical diagnostic tools.