A Self-standing Organic Supercapacitor to Power Bioelectronic Devices

Georgios Nikiforidis,David Ohayon,Victor Druet,Sahika Inal,Shofarul Wustoni

doi:10.1021/acsaem.0c01299

Georgios Nikiforidis, David Ohayon + Show 3 more

Open Access

https://doi.org/10.1021/acsaem.0c01299

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Abstract

The last decade has witnessed rapid progress in the development of implantable and wearable bio(chemical) sensors, which allow for real-time, continuous health monitoring. Among different device co...

Highlights

Bioelectronic devices electronically communicate with living systems to detect or control biological events.[1]
The voltage-dependent charging of conjugated polymer films has been exploited in the organic electrochemical transistor (OECT) configuration, where the conjugated polymer constitutes the channel in contact with the electrolyte
Facile, and fast assembly of the device in a stable electrolyte-bearing hydrogel environment and present how this device can be integrated as a power source for small-power bioelectronics

Summary

INTRODUCTION

Bioelectronic devices electronically communicate with living systems to detect or control biological events.[1]. As a result of the volumetric charging of the channel material gated with an electrolyte solution, OECTs are identified with large changes in the channel current for small gate voltage modulations (i.e., high transconductance, gm)[5] and operate within a narrow voltage window (up to ±1 V vs Ag|AgCl).[6] Because of these features, OECTs are ideal for biosensing applications, where the device converts ionic biological signals into an electronic output while amplifying the input signals.[7] OECTs have been used to record physiological signals when interfacing electrically active tissues,[8] detect hormones from the sweat when interfacing the skin,[9] sense minute concentrations of metabolites,[10] ions,[11,12] and proteins,[13] and monitor the integrity of barrier-forming cells.[14]. Focusing on the optimization of an SC for bioelectronic device coupling, this study follows the paradigm of developing green, safe (nontoxic, nonflammable, and no-leakage), and low-cost SCs for low-power bioelectronics

EXPERIMENTAL SECTION

Electrochemical Characterization and Performance

RESULTS AND DISCUSSION

CONCLUSIONS

■ ACKNOWLEDGMENTS

■ REFERENCES