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Exploring ion mobility mechanisms in poly indolequinone polymers: a case study on black soldier fly melanin

M Ambrico Orcid Logo, Bernard Mostert Orcid Logo, P F Ambrico Orcid Logo, J Phua Orcid Logo, S Mattiello Orcid Logo, R Gunnella Orcid Logo

Journal of Physics D: Applied Physics, Volume: 57, Issue: 26, Start page: 265303

Swansea University Author: Bernard Mostert Orcid Logo

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DOI (Published version): 10.1088/1361-6463/ad3765

Abstract

Black soldier fly (BSF) melanin is a new supply of the brown-black pigment eumelanin. Given that eumelanin is a model bioelectronic material for applications such as medical devices and sensors, understanding BSF melanin's electrical properties is important to confirm its viability as an advanc...

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Published in: Journal of Physics D: Applied Physics
ISSN: 0022-3727 1361-6463
Published: IOP Publishing 2024
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URI: https://cronfa.swan.ac.uk/Record/cronfa67143
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Presented here is a systematic, hydration dependent alternating current study of BSF melanin utilising both H2O and D2O vapours. There is a clear difference between the vapours, enabling a thorough analysis including Nyquist plots with model circuit analysis, broad band dielectric spectroscopic modelling as well as applying the Trukhan model to understand free ion concentration and mobility changes as a function of hydration. We find that BSF melanin behaves similarly to previous reports on synthetic systems, and the analysis here sheds additional light on potential charge transport changes. 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spelling v2 67143 2024-07-17 Exploring ion mobility mechanisms in poly indolequinone polymers: a case study on black soldier fly melanin a353503c976a7338c7708a32e82f451f 0000-0002-9590-2124 Bernard Mostert Bernard Mostert true false 2024-07-17 BGPS Black soldier fly (BSF) melanin is a new supply of the brown-black pigment eumelanin. Given that eumelanin is a model bioelectronic material for applications such as medical devices and sensors, understanding BSF melanin's electrical properties is important to confirm its viability as an advanced material. Presented here is a systematic, hydration dependent alternating current study of BSF melanin utilising both H2O and D2O vapours. There is a clear difference between the vapours, enabling a thorough analysis including Nyquist plots with model circuit analysis, broad band dielectric spectroscopic modelling as well as applying the Trukhan model to understand free ion concentration and mobility changes as a function of hydration. We find that BSF melanin behaves similarly to previous reports on synthetic systems, and the analysis here sheds additional light on potential charge transport changes. Significantly, a key finding is that there are two different mobility mechanisms for ion transport depending on hydration. Journal Article Journal of Physics D: Applied Physics 57 26 265303 IOP Publishing 0022-3727 1361-6463 BSF/melanin, hydration, mobility, circular economy 5 7 2024 2024-07-05 10.1088/1361-6463/ad3765 COLLEGE NANME Biosciences Geography and Physics School COLLEGE CODE BGPS Swansea University Another institution paid the OA fee M A aknowledges the CNR-Short Term Mobility program 2021 Prot.0052594/230721; M A and P F A acknowledge the Italian Ministry of University and Research (MUR) PONa3_00369 SISTEMA; This work has been funded by Italian Ministry of University and Research (MUR), PRIN MUSSEL- 2017YJMPZN MUSSEL. R G acknowledges the European Union—NextGenerationEU under the Italian Ministry of University and Research (MUR) National Innovation Ecosystem grant ECS00000041—VITALITY—Spoke 9. For A B M: 'This work was also supported by the UKRI Research Partnerships Investment Fund through the Centre for Integrative Semiconductor Materials.' 2024-07-31T22:00:13.7222657 2024-07-17T11:31:31.5666299 Faculty of Science and Engineering School of Biosciences, Geography and Physics - Physics M Ambrico 0000-0002-0568-6860 1 Bernard Mostert 0000-0002-9590-2124 2 P F Ambrico 0000-0002-2455-6949 3 J Phua 0009-0002-1763-0861 4 S Mattiello 0009-0000-9601-4703 5 R Gunnella 0000-0003-4739-6375 6 67143__30918__9d496f8d39244baca02176efd74efeaf.pdf Ambrico2024.pdf 2024-07-17T11:34:13.8654181 Output 2376119 application/pdf Version of Record true Original content from this work may be used under the terms of the Creative Commons Attribution 4.0 licence. Any further distribution of this work must maintain attribution to the author(s) and the title of the work, journal citation and DOI. true eng https://creativecommons.org/licenses/by/4.0/
title Exploring ion mobility mechanisms in poly indolequinone polymers: a case study on black soldier fly melanin
spellingShingle Exploring ion mobility mechanisms in poly indolequinone polymers: a case study on black soldier fly melanin
Bernard Mostert
title_short Exploring ion mobility mechanisms in poly indolequinone polymers: a case study on black soldier fly melanin
title_full Exploring ion mobility mechanisms in poly indolequinone polymers: a case study on black soldier fly melanin
title_fullStr Exploring ion mobility mechanisms in poly indolequinone polymers: a case study on black soldier fly melanin
title_full_unstemmed Exploring ion mobility mechanisms in poly indolequinone polymers: a case study on black soldier fly melanin
title_sort Exploring ion mobility mechanisms in poly indolequinone polymers: a case study on black soldier fly melanin
author_id_str_mv a353503c976a7338c7708a32e82f451f
author_id_fullname_str_mv a353503c976a7338c7708a32e82f451f_***_Bernard Mostert
author Bernard Mostert
author2 M Ambrico
Bernard Mostert
P F Ambrico
J Phua
S Mattiello
R Gunnella
format Journal article
container_title Journal of Physics D: Applied Physics
container_volume 57
container_issue 26
container_start_page 265303
publishDate 2024
institution Swansea University
issn 0022-3727
1361-6463
doi_str_mv 10.1088/1361-6463/ad3765
publisher IOP Publishing
college_str Faculty of Science and Engineering
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hierarchy_top_id facultyofscienceandengineering
hierarchy_top_title Faculty of Science and Engineering
hierarchy_parent_id facultyofscienceandengineering
hierarchy_parent_title Faculty of Science and Engineering
department_str School of Biosciences, Geography and Physics - Physics{{{_:::_}}}Faculty of Science and Engineering{{{_:::_}}}School of Biosciences, Geography and Physics - Physics
document_store_str 1
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description Black soldier fly (BSF) melanin is a new supply of the brown-black pigment eumelanin. Given that eumelanin is a model bioelectronic material for applications such as medical devices and sensors, understanding BSF melanin's electrical properties is important to confirm its viability as an advanced material. Presented here is a systematic, hydration dependent alternating current study of BSF melanin utilising both H2O and D2O vapours. There is a clear difference between the vapours, enabling a thorough analysis including Nyquist plots with model circuit analysis, broad band dielectric spectroscopic modelling as well as applying the Trukhan model to understand free ion concentration and mobility changes as a function of hydration. We find that BSF melanin behaves similarly to previous reports on synthetic systems, and the analysis here sheds additional light on potential charge transport changes. Significantly, a key finding is that there are two different mobility mechanisms for ion transport depending on hydration.
published_date 2024-07-05T22:00:14Z
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