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Translating Extracellular Electron Transfer Activities with Organic Electrochemical Transistors

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A catalytically active oscillator made from small organic molecules.

Matthijs Ter Harmsel¹, Oliver R Maguire², Sofiya A Runikhina¹

¹Stratingh Institute for Chemistry, University of Groningen, Groningen, the Netherlands.

|September 6, 2023

Summary

Researchers developed a novel small molecule oscillator that can catalyze chemical reactions without disrupting its own timing. This advancement enables synthetic oscillators to perform dual functions, paving the way for complex applications.

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Area of Science:

Chemical Oscillations
Synthetic Biology
Catalysis

Background:

Oscillatory systems are fundamental to biological processes like metabolism and circadian rhythms.
Synthetic chemical oscillators are used in analytical and biomedical fields.
Integrating secondary functions with oscillators is challenging due to potential interference.

Purpose of the Study:

To develop a synthetic oscillator capable of catalyzing an independent reaction without compromising its oscillation.
To explore the potential of dual-function oscillators in advanced applications.

Main Methods:

A novel small molecule oscillator was designed and implemented in a flow system.
The oscillator's ability to catalyze an independent reaction in situ was investigated.
The impact of catalysis on the oscillator's time-keeping properties was assessed.

Main Results:

The small molecule oscillator successfully catalyzed an independent chemical reaction.
Sustained oscillations were observed in the product concentration.
The catalyzed reaction rate increased specifically during peak concentration phases of the oscillator.

Conclusions:

Synthetic oscillators can be augmented with periodic catalytic action.
This dual functionality enhances the utility of oscillators beyond simple pacemakers.
Potential applications include automated synthesis, polymerization, and periodic drug delivery.