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Optical glucose sensing using ethanolamine-polyborate complexes.

C Toncelli¹, R Innocenti Malini, D Jankowska

¹Empa, Swiss Federal Laboratories for Materials Science and Technology, Laboratory for Biomimetic Membranes and Textiles, Lerchenfeldstrasse 5, CH-9014 St. Gallen, Switzerland. claudio.toncelli@empa.ch luciano.boesel@empa.ch.

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|April 8, 2020

Summary

This summary is machine-generated.

Researchers developed a novel, cost-efficient optical glucose sensor for wound monitoring. This non-enzymatic sensor detects glucose in wound exudates, aiding early detection of chronic wound complications.

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Area of Science:

Biomedical Engineering
Materials Science
Analytical Chemistry

Background:

Effective wound monitoring is crucial for preventing chronic complications and assessing healing.
Glucose in wound exudates is a key biomarker for wound status and infection.
Current glucose detection methods can be costly and inefficient for routine wound monitoring.

Purpose of the Study:

To develop a novel, cost-efficient, non-enzymatic optical glucose sensor for wound monitoring.
To enable early detection of infections and complications in chronic wounds.
To provide an accessible tool for objective assessment of wound healing progression.

Main Methods:

One-step synthesis of polyborate-ethanolamine complexes via thermal treatment.
Characterization of synthesized complexes using NMR spectroscopy (13C, 1H, 11B), analytical ultracentrifugation, and DFT.
Testing of optical sensor performance across a range of glucose concentrations (0-10 mM).

Main Results:

Successfully synthesized novel polyborate-ethanolamine complexes with small hydrodynamic diameters (~0.5 nm).
Demonstrated significant changes in fluorescent emission correlating with glucose concentrations.
Distinguished between glucose levels in healable wounds (5.0-7.6 mM) and chronic wounds (0.3-1.0 mM).

Conclusions:

The developed optical glucose sensor offers a promising, cost-effective solution for non-enzymatic wound monitoring.
This technology can aid in the early diagnosis of wound infections and complications.
The sensor provides objective data to scrutinize delayed epithelization and guide treatment decisions.