No Cover Image

E-Thesis 286 views 215 downloads

An Electrochemical Biosensor for Sensitive in-situ Detection of Methyl-isoborneol (MIB) in Water / JOSHUA PEARCE

Swansea University Author: JOSHUA PEARCE

Abstract

2-Methylisoborneol (MIB) is an naturally occurring, odour producing compound which generates mass complaints due to its occurrence in drinking water. Removal and detection techniques are currently limited in the field due to the low detection level to the human nose being as low as 25ng/L. Current d...

Full description

Published: Swansea University, Wales, UK 2025
Institution: Swansea University
Degree level: Master of Research
Degree name: MSc by Research
Supervisor: Wei, Z.
URI: https://cronfa.swan.ac.uk/Record/cronfa70398
first_indexed 2025-09-18T13:54:25Z
last_indexed 2025-09-19T14:52:59Z
id cronfa70398
recordtype RisThesis
fullrecord <?xml version="1.0"?><rfc1807><datestamp>2025-09-18T14:54:21.5356235</datestamp><bib-version>v2</bib-version><id>70398</id><entry>2025-09-18</entry><title>An Electrochemical Biosensor for Sensitive in-situ Detection of Methyl-isoborneol (MIB) in Water</title><swanseaauthors><author><sid>634aa05674c88b851d198d62f879e088</sid><firstname>JOSHUA</firstname><surname>PEARCE</surname><name>JOSHUA PEARCE</name><active>true</active><ethesisStudent>false</ethesisStudent></author></swanseaauthors><date>2025-09-18</date><abstract>2-Methylisoborneol (MIB) is an naturally occurring, odour producing compound which generates mass complaints due to its occurrence in drinking water. Removal and detection techniques are currently limited in the field due to the low detection level to the human nose being as low as 25ng/L. Current detection techniques consist of Gas Chromatography &#x2013; Mass Spectrometry (GC/MS) which can struggle at detection levels such as this. This project will explore the potential of a sensing method which has both isolated selectivity to the target compound and has the ability for in-situ detection using an electrochemical biosensor, capable through the use of molecularly imprinted polymer (MIP) technology. The Brunner-Emmet-Teller (BET)nitrogen adsorption analysis, Raman spectroscopy and Scanning ElectronMicroscopy (SEM) were all used to characterize the sensor, while Cyclic voltammetry (CV) and Electrochemical impedance spectroscopy (EIS) were both used to analyse the electrochemical behaviour of the sensor. Ideal polymer conditions were found to be 10mL using a drop casting method, followed by a 48hour period in an oven at 40&#xB0;C, with a sensor using a graphene, diacetone alcohol (DAA) and polydopamine (PDA) recipe was used on a Kapton polyimide tape. A template removal and reintroduction period of 25 minutes was found to be optimal, with the removal solution being a 1% ethanol mix with deionised water. Using the calibration curve from EIS testing, an LOD value of 1.45ng/L and LOQ value of 4.39ng/L were calculated.</abstract><type>E-Thesis</type><journal/><volume/><journalNumber/><paginationStart/><paginationEnd/><publisher/><placeOfPublication>Swansea University, Wales, UK</placeOfPublication><isbnPrint/><isbnElectronic/><issnPrint/><issnElectronic/><keywords>Electrochemical, Biosensor, MIB, Water, Detection</keywords><publishedDay>23</publishedDay><publishedMonth>7</publishedMonth><publishedYear>2025</publishedYear><publishedDate>2025-07-23</publishedDate><doi/><url/><notes/><college>COLLEGE NANME</college><CollegeCode>COLLEGE CODE</CollegeCode><institution>Swansea University</institution><supervisor>Wei, Z.</supervisor><degreelevel>Master of Research</degreelevel><degreename>MSc by Research</degreename><degreesponsorsfunders>Welsh Water, M2A</degreesponsorsfunders><apcterm/><funders>Welsh Water, M2A</funders><projectreference/><lastEdited>2025-09-18T14:54:21.5356235</lastEdited><Created>2025-09-18T14:49:04.3514602</Created><path><level id="1">Faculty of Science and Engineering</level><level id="2">School of Engineering and Applied Sciences - Materials Science and Engineering</level></path><authors><author><firstname>JOSHUA</firstname><surname>PEARCE</surname><order>1</order></author></authors><documents><document><filename>70398__35132__2c9b06ea91a54e1fbaec6e06656f3b3a.pdf</filename><originalFilename>2025_Pearce_J.final.70398.pdf</originalFilename><uploaded>2025-09-18T14:53:17.9364316</uploaded><type>Output</type><contentLength>1964013</contentLength><contentType>application/pdf</contentType><version>E-Thesis &#x2013; open access</version><cronfaStatus>true</cronfaStatus><documentNotes>Copyright: The author, Joshua Pearce, 2025</documentNotes><copyrightCorrect>true</copyrightCorrect><language>eng</language></document></documents><OutputDurs/></rfc1807>
spelling 2025-09-18T14:54:21.5356235 v2 70398 2025-09-18 An Electrochemical Biosensor for Sensitive in-situ Detection of Methyl-isoborneol (MIB) in Water 634aa05674c88b851d198d62f879e088 JOSHUA PEARCE JOSHUA PEARCE true false 2025-09-18 2-Methylisoborneol (MIB) is an naturally occurring, odour producing compound which generates mass complaints due to its occurrence in drinking water. Removal and detection techniques are currently limited in the field due to the low detection level to the human nose being as low as 25ng/L. Current detection techniques consist of Gas Chromatography – Mass Spectrometry (GC/MS) which can struggle at detection levels such as this. This project will explore the potential of a sensing method which has both isolated selectivity to the target compound and has the ability for in-situ detection using an electrochemical biosensor, capable through the use of molecularly imprinted polymer (MIP) technology. The Brunner-Emmet-Teller (BET)nitrogen adsorption analysis, Raman spectroscopy and Scanning ElectronMicroscopy (SEM) were all used to characterize the sensor, while Cyclic voltammetry (CV) and Electrochemical impedance spectroscopy (EIS) were both used to analyse the electrochemical behaviour of the sensor. Ideal polymer conditions were found to be 10mL using a drop casting method, followed by a 48hour period in an oven at 40°C, with a sensor using a graphene, diacetone alcohol (DAA) and polydopamine (PDA) recipe was used on a Kapton polyimide tape. A template removal and reintroduction period of 25 minutes was found to be optimal, with the removal solution being a 1% ethanol mix with deionised water. Using the calibration curve from EIS testing, an LOD value of 1.45ng/L and LOQ value of 4.39ng/L were calculated. E-Thesis Swansea University, Wales, UK Electrochemical, Biosensor, MIB, Water, Detection 23 7 2025 2025-07-23 COLLEGE NANME COLLEGE CODE Swansea University Wei, Z. Master of Research MSc by Research Welsh Water, M2A Welsh Water, M2A 2025-09-18T14:54:21.5356235 2025-09-18T14:49:04.3514602 Faculty of Science and Engineering School of Engineering and Applied Sciences - Materials Science and Engineering JOSHUA PEARCE 1 70398__35132__2c9b06ea91a54e1fbaec6e06656f3b3a.pdf 2025_Pearce_J.final.70398.pdf 2025-09-18T14:53:17.9364316 Output 1964013 application/pdf E-Thesis – open access true Copyright: The author, Joshua Pearce, 2025 true eng
title An Electrochemical Biosensor for Sensitive in-situ Detection of Methyl-isoborneol (MIB) in Water
spellingShingle An Electrochemical Biosensor for Sensitive in-situ Detection of Methyl-isoborneol (MIB) in Water
JOSHUA PEARCE
title_short An Electrochemical Biosensor for Sensitive in-situ Detection of Methyl-isoborneol (MIB) in Water
title_full An Electrochemical Biosensor for Sensitive in-situ Detection of Methyl-isoborneol (MIB) in Water
title_fullStr An Electrochemical Biosensor for Sensitive in-situ Detection of Methyl-isoborneol (MIB) in Water
title_full_unstemmed An Electrochemical Biosensor for Sensitive in-situ Detection of Methyl-isoborneol (MIB) in Water
title_sort An Electrochemical Biosensor for Sensitive in-situ Detection of Methyl-isoborneol (MIB) in Water
author_id_str_mv 634aa05674c88b851d198d62f879e088
author_id_fullname_str_mv 634aa05674c88b851d198d62f879e088_***_JOSHUA PEARCE
author JOSHUA PEARCE
author2 JOSHUA PEARCE
format E-Thesis
publishDate 2025
institution Swansea University
college_str Faculty of Science and Engineering
hierarchytype
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 Engineering and Applied Sciences - Materials Science and Engineering{{{_:::_}}}Faculty of Science and Engineering{{{_:::_}}}School of Engineering and Applied Sciences - Materials Science and Engineering
document_store_str 1
active_str 0
description 2-Methylisoborneol (MIB) is an naturally occurring, odour producing compound which generates mass complaints due to its occurrence in drinking water. Removal and detection techniques are currently limited in the field due to the low detection level to the human nose being as low as 25ng/L. Current detection techniques consist of Gas Chromatography – Mass Spectrometry (GC/MS) which can struggle at detection levels such as this. This project will explore the potential of a sensing method which has both isolated selectivity to the target compound and has the ability for in-situ detection using an electrochemical biosensor, capable through the use of molecularly imprinted polymer (MIP) technology. The Brunner-Emmet-Teller (BET)nitrogen adsorption analysis, Raman spectroscopy and Scanning ElectronMicroscopy (SEM) were all used to characterize the sensor, while Cyclic voltammetry (CV) and Electrochemical impedance spectroscopy (EIS) were both used to analyse the electrochemical behaviour of the sensor. Ideal polymer conditions were found to be 10mL using a drop casting method, followed by a 48hour period in an oven at 40°C, with a sensor using a graphene, diacetone alcohol (DAA) and polydopamine (PDA) recipe was used on a Kapton polyimide tape. A template removal and reintroduction period of 25 minutes was found to be optimal, with the removal solution being a 1% ethanol mix with deionised water. Using the calibration curve from EIS testing, an LOD value of 1.45ng/L and LOQ value of 4.39ng/L were calculated.
published_date 2025-07-23T05:32:35Z
_version_ 1856986945168605184
score 11.096191

Similar Items