{"id":{"repo_id":"uiuc","oai_identifier":"oai:www.ideals.illinois.edu:2142/99246"},"canonical_url":"https://search.dev.ndltd.org/etd/uiuc/oai:www.ideals.illinois.edu:2142/99246","repository":{"repo_id":"uiuc","name":"University of Illinois - Urbana-Champaign","base_url":"https://www.ideals.illinois.edu/oai-pmh"},"display":{"title":"A universal miniaturized electrochemical sensing platform and its applications","abstract":"We have developed a portable universal miniaturized electrochemical sensing platform, which integrates with a microelectronic sensor strip, that can perform various electrochemical and impedance sensing measurements. This sensing platform works as a miniaturized potentiostat that supports a number of potential waveforms such as cyclic voltammetry (CV) and differential pulse voltammetry (DPV), which are the foundations of modern electrochemical research. This thesis first explains the theoretical basis and physical implementation of the sensing system, which covers design of hardware, embedded system and sensing algorithm. The circuit hardware principle is based on the three-electrode system widely used in electrochemistry experiments. Then the thesis discloses several real electrochemical applications that can be conducted using the sensing platform, which include measuring nitrate concentration and counting number of white blood cells. This inexpensive, portable device is also suitable for a variety of other applications, ranging from instant food/water quality examination to long-period environmental monitoring. We tested this lab-on-chip sensing platform under different circumstances and confirmed the results with other commercial analytic testing methods. Even with strip variation and external noise, the sensing platform discussed in this thesis can still produce a fairly accurate result.","abstract_html":"We have developed a portable universal miniaturized electrochemical sensing platform, which integrates with a microelectronic sensor strip, that can perform various electrochemical and impedance sensing measurements. This sensing platform works as a miniaturized potentiostat that supports a number of potential waveforms such as cyclic voltammetry (CV) and differential pulse voltammetry (DPV), which are the foundations of modern electrochemical research. This thesis first explains the theoretical basis and physical implementation of the sensing system, which covers design of hardware, embedded system and sensing algorithm. The circuit hardware principle is based on the three-electrode system widely used in electrochemistry experiments. Then the thesis discloses several real electrochemical applications that can be conducted using the sensing platform, which include measuring nitrate concentration and counting number of white blood cells. This inexpensive, portable device is also suitable for a variety of other applications, ranging from instant food/water quality examination to long-period environmental monitoring. We tested this lab-on-chip sensing platform under different circumstances and confirmed the results with other commercial analytic testing methods. Even with strip variation and external noise, the sensing platform discussed in this thesis can still produce a fairly accurate result.","abstract_has_math":false,"creators":["Zhou, Xiangfei"],"institution":"University of Illinois at Urbana-Champaign","degree_name":"M.S.","degree_level":"Thesis","degree_discipline":"Electrical & Computer Engr","degree_department":null,"school":null,"contributors":["Liu, Gang"],"advisors":[],"committee_chairs":[],"committee_members":[],"year":2018,"date_issued":"2018-03-13T15:25:32Z","date_published":"2018-03-13T15:25:32Z","updated_at":"2026-07-22T22:24:37Z","subjects":["Biosensor","Portable devices","Electrochemical sensing","Nitrate concentration","White blood cell counting"],"languages":["en"],"rights":["Copyright 2017 Xiangfei Zhou"],"rights_urls":[],"identifier_entries":[]},"links":{"outbound_url":"http://hdl.handle.net/2142/99246","outbound_label":"Handle","outbound_source":"dc:identifier"},"metadata_groups":[{"id":"people","label":"People","entries":[{"key":"dc:contributor","label":"Contributor","values":["Liu, Gang"]},{"key":"dc:creator","label":"Author","values":["Zhou, Xiangfei"]}]},{"id":"academic_context","label":"Academic Context","entries":[{"key":"dc:date","label":"Dc Date","values":["2018-03-13T15:25:32Z","2020-03-14T09:15:22Z","2017-12-06","2017-12"]},{"key":"dc:type","label":"Dc Type","values":["text"]},{"key":"thesis:degree_discipline","label":"Discipline","values":["Electrical & Computer Engr"]},{"key":"thesis:degree_level","label":"Degree Level","values":["Thesis"]},{"key":"thesis:degree_name","label":"Degree Name","values":["M.S."]},{"key":"thesis:institution_name","label":"Thesis Institution Name","values":["University of Illinois at Urbana-Champaign"]}]},{"id":"subjects_keywords","label":"Subjects and Keywords","entries":[{"key":"dc:subject","label":"Dc Subject","values":["Biosensor","Portable devices","Electrochemical sensing","Nitrate concentration","White blood cell counting"]}]},{"id":"language_rights","label":"Language and Rights","entries":[{"key":"dc:language","label":"Dc Language","values":["en"]},{"key":"dc:rights","label":"Dc Rights","values":["Copyright 2017 Xiangfei Zhou"]}]},{"id":"identifiers","label":"Identifiers","entries":[{"key":"dc:identifier","label":"Identifier","values":["http://hdl.handle.net/2142/99246"]}]},{"id":"additional","label":"Additional Metadata","entries":[{"key":"dc:description","label":"Description","values":["We have developed a portable universal miniaturized electrochemical sensing platform, which integrates with a microelectronic sensor strip, that can perform various electrochemical and impedance sensing measurements. This sensing platform works as a miniaturized potentiostat that supports a number of potential waveforms such as cyclic voltammetry (CV) and differential pulse voltammetry (DPV), which are the foundations of modern electrochemical research. This thesis first explains the theoretical basis and physical implementation of the sensing system, which covers design of hardware, embedded system and sensing algorithm. The circuit hardware principle is based on the three-electrode system widely used in electrochemistry experiments. Then the thesis discloses several real electrochemical applications that can be conducted using the sensing platform, which include measuring nitrate concentration and counting number of white blood cells. This inexpensive, portable device is also suitable for a variety of other applications, ranging from instant food/water quality examination to long-period environmental monitoring. We tested this lab-on-chip sensing platform under different circumstances and confirmed the results with other commercial analytic testing methods. Even with strip variation and external noise, the sensing platform discussed in this thesis can still produce a fairly accurate result.","Submission published under a 24 month embargo labeled 'U of I Access', the embargo will last until 2019-12-01","The student, Xiangfei Zhou, accepted the attached license on 2017-12-06 at 14:39.","The student, Xiangfei Zhou, submitted this Thesis for approval on 2017-12-06 at 14:44.","This Thesis was approved for publication on 2017-12-06 at 16:01.","DSpace SAF Submission Ingestion Package generated from Vireo submission #11887 on 2018-03-13 at 09:57:35","Made available in DSpace on 2018-03-13T15:25:32Z (GMT). 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This sensing platform works as a miniaturized potentiostat that supports a number of potential waveforms such as cyclic voltammetry (CV) and differential pulse voltammetry (DPV), which are the foundations of modern electrochemical research. This thesis first explains the theoretical basis and physical implementation of the sensing system, which covers design of hardware, embedded system and sensing algorithm. The circuit hardware principle is based on the three-electrode system widely used in electrochemistry experiments. Then the thesis discloses several real electrochemical applications that can be conducted using the sensing platform, which include measuring nitrate concentration and counting number of white blood cells. This inexpensive, portable device is also suitable for a variety of other applications, ranging from instant food/water quality examination to long-period environmental monitoring. We tested this lab-on-chip sensing platform under different circumstances and confirmed the results with other commercial analytic testing methods. Even with strip variation and external noise, the sensing platform discussed in this thesis can still produce a fairly accurate result.","Submission published under a 24 month embargo labeled 'U of I Access', the embargo will last until 2019-12-01","The student, Xiangfei Zhou, accepted the attached license on 2017-12-06 at 14:39.","The student, Xiangfei Zhou, submitted this Thesis for approval on 2017-12-06 at 14:44.","This Thesis was approved for publication on 2017-12-06 at 16:01.","DSpace SAF Submission Ingestion Package generated from Vireo submission #11887 on 2018-03-13 at 09:57:35","Made available in DSpace on 2018-03-13T15:25:32Z (GMT). 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