Portable system for transient response of ultrathin organic electrochemical transistor arrays

Minghui Zhu; Kieran M Holmes-Martin; Faezeh Arab Hassani

doi:10.1109/EMBC58623.2025.11251755

Portable system for transient response of ultrathin organic electrochemical transistor arrays

Minghui Zhu
, Kieran M Holmes-Martin
, Faezeh Arab Hassani^*

^*Corresponding author for this work

Research output: Chapter in Book/Report/Conference proceeding › Conference Contribution (Conference Proceeding)

34 Downloads (Pure)

Abstract

Organic electrochemical transistors (OECTs) have been used for various applications in health monitoring due to their built-in amplification and biocompatibility. This work establishes a straightforward fabrication process for an ultrathin and flexible OECT array. The array’s OECTs achieve peak transconductance values of 4.7 mS to 5.1 mS and ON-OFF current ratios of 201 to 243. A portable system is developed for easy transient characterization of OECTs in response to stimulation signals with a frequency range of 1-10 Hz and magnitudes of 5-100 mV, removing the need for bulky specialized characterization equipment. Clinical Relevance— This study presents the development of an ultrathin OECT array and a portable characterization system that offers convenient and reliable transient testing before in vivo recording of biopotential signals.

Original language	English
Title of host publication	47th Annual International Conference of the IEEE Engineering in Medicine and Biology Society (EMBC)
Publisher	Institute of Electrical and Electronics Engineers (IEEE)
Pages	1-5
Number of pages	5
Volume	2025
ISBN (Electronic)	9798331586188
ISBN (Print)	9798331586195
DOIs	https://doi.org/10.1109/EMBC58623.2025.11251755
Publication status	Published - 3 Dec 2025
Event	47th Annual International Conference of the IEEE Engineering in Medicine and Biology Society - Copenhagen, Denmark Duration: 14 Jul 2025 → 17 Jul 2025 https://embc.embs.org/2025/

Publication series

Name	Annual International Conference of the IEEE Engineering in Medicine and Biology Society (EMBC)
ISSN (Print)	2375-7477
ISSN (Electronic)	2694-0604

Conference

Conference	47th Annual International Conference of the IEEE Engineering in Medicine and Biology Society
Abbreviated title	EMBC 2025
Country/Territory	Denmark
City	Copenhagen
Period	14/07/25 → 17/07/25
Internet address	https://embc.embs.org/2025/

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10.1109/EMBC58623.2025.11251755

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Accepted author manuscript, 888 KBLicence: CC BY

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Zhu, M., Holmes-Martin, K. M., & Arab Hassani, F. (2025). Portable system for transient response of ultrathin organic electrochemical transistor arrays. In 47th Annual International Conference of the IEEE Engineering in Medicine and Biology Society (EMBC) (Vol. 2025, pp. 1-5). (Annual International Conference of the IEEE Engineering in Medicine and Biology Society (EMBC)). Institute of Electrical and Electronics Engineers (IEEE). https://doi.org/10.1109/EMBC58623.2025.11251755

Zhu, Minghui ; Holmes-Martin, Kieran M ; Arab Hassani, Faezeh. / Portable system for transient response of ultrathin organic electrochemical transistor arrays. 47th Annual International Conference of the IEEE Engineering in Medicine and Biology Society (EMBC). Vol. 2025 Institute of Electrical and Electronics Engineers (IEEE), 2025. pp. 1-5 (Annual International Conference of the IEEE Engineering in Medicine and Biology Society (EMBC)).

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abstract = "Organic electrochemical transistors (OECTs) have been used for various applications in health monitoring due to their built-in amplification and biocompatibility. This work establishes a straightforward fabrication process for an ultrathin and flexible OECT array. The array{\textquoteright}s OECTs achieve peak transconductance values of 4.7 mS to 5.1 mS and ON-OFF current ratios of 201 to 243. A portable system is developed for easy transient characterization of OECTs in response to stimulation signals with a frequency range of 1-10 Hz and magnitudes of 5-100 mV, removing the need for bulky specialized characterization equipment. Clinical Relevance— This study presents the development of an ultrathin OECT array and a portable characterization system that offers convenient and reliable transient testing before in vivo recording of biopotential signals.",

author = "Minghui Zhu and Holmes-Martin, \{Kieran M\} and \{Arab Hassani\}, Faezeh",

year = "2025",

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booktitle = "47th Annual International Conference of the IEEE Engineering in Medicine and Biology Society (EMBC)",

address = "United States",

note = "47th Annual International Conference of the IEEE Engineering in Medicine and Biology Society, EMBC 2025 ; Conference date: 14-07-2025 Through 17-07-2025",

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Zhu, M, Holmes-Martin, KM & Arab Hassani, F 2025, Portable system for transient response of ultrathin organic electrochemical transistor arrays. in 47th Annual International Conference of the IEEE Engineering in Medicine and Biology Society (EMBC). vol. 2025, Annual International Conference of the IEEE Engineering in Medicine and Biology Society (EMBC), Institute of Electrical and Electronics Engineers (IEEE), pp. 1-5, 47th Annual International Conference of the IEEE Engineering in Medicine and Biology Society, Copenhagen, Denmark, 14/07/25. https://doi.org/10.1109/EMBC58623.2025.11251755

Portable system for transient response of ultrathin organic electrochemical transistor arrays. / Zhu, Minghui; Holmes-Martin, Kieran M; Arab Hassani, Faezeh.
47th Annual International Conference of the IEEE Engineering in Medicine and Biology Society (EMBC). Vol. 2025 Institute of Electrical and Electronics Engineers (IEEE), 2025. p. 1-5 (Annual International Conference of the IEEE Engineering in Medicine and Biology Society (EMBC)).

Research output: Chapter in Book/Report/Conference proceeding › Conference Contribution (Conference Proceeding)

TY - GEN

T1 - Portable system for transient response of ultrathin organic electrochemical transistor arrays

AU - Zhu, Minghui

AU - Holmes-Martin, Kieran M

AU - Arab Hassani, Faezeh

PY - 2025/12/3

Y1 - 2025/12/3

N2 - Organic electrochemical transistors (OECTs) have been used for various applications in health monitoring due to their built-in amplification and biocompatibility. This work establishes a straightforward fabrication process for an ultrathin and flexible OECT array. The array’s OECTs achieve peak transconductance values of 4.7 mS to 5.1 mS and ON-OFF current ratios of 201 to 243. A portable system is developed for easy transient characterization of OECTs in response to stimulation signals with a frequency range of 1-10 Hz and magnitudes of 5-100 mV, removing the need for bulky specialized characterization equipment. Clinical Relevance— This study presents the development of an ultrathin OECT array and a portable characterization system that offers convenient and reliable transient testing before in vivo recording of biopotential signals.

AB - Organic electrochemical transistors (OECTs) have been used for various applications in health monitoring due to their built-in amplification and biocompatibility. This work establishes a straightforward fabrication process for an ultrathin and flexible OECT array. The array’s OECTs achieve peak transconductance values of 4.7 mS to 5.1 mS and ON-OFF current ratios of 201 to 243. A portable system is developed for easy transient characterization of OECTs in response to stimulation signals with a frequency range of 1-10 Hz and magnitudes of 5-100 mV, removing the need for bulky specialized characterization equipment. Clinical Relevance— This study presents the development of an ultrathin OECT array and a portable characterization system that offers convenient and reliable transient testing before in vivo recording of biopotential signals.

U2 - 10.1109/EMBC58623.2025.11251755

DO - 10.1109/EMBC58623.2025.11251755

M3 - Conference Contribution (Conference Proceeding)

C2 - 41336463

SN - 9798331586195

VL - 2025

T3 - Annual International Conference of the IEEE Engineering in Medicine and Biology Society (EMBC)

SP - 1

EP - 5

BT - 47th Annual International Conference of the IEEE Engineering in Medicine and Biology Society (EMBC)

PB - Institute of Electrical and Electronics Engineers (IEEE)

T2 - 47th Annual International Conference of the IEEE Engineering in Medicine and Biology Society

Y2 - 14 July 2025 through 17 July 2025

ER -

Zhu M, Holmes-Martin KM, Arab Hassani F. Portable system for transient response of ultrathin organic electrochemical transistor arrays. In 47th Annual International Conference of the IEEE Engineering in Medicine and Biology Society (EMBC). Vol. 2025. Institute of Electrical and Electronics Engineers (IEEE). 2025. p. 1-5. (Annual International Conference of the IEEE Engineering in Medicine and Biology Society (EMBC)). doi: 10.1109/EMBC58623.2025.11251755

Portable system for transient response of ultrathin organic electrochemical transistor arrays

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