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2024-12-31 Iacopino, Daniela Quinn, Aidan J. Vaughan, Eoghan Horizon 2020 2023-09-27T10:47:29Z 2023-09-27T10:47:29Z 2023 2023 The fabrication of laser-induced graphene (LIG) allows rapid, inexpensive patterning of electrode designs onto various substrates. LIG is a material whose properties can be tuned by altering the fabrication process, to suit the desired application. In this thesis, LIG materials were developed using a low-power hobbyist visible laser system, for electrochemical sensing applications. Polyimide (PI) was studied initially as a precursor, with the resultant LIG electrodes showing excellent electrochemical properties. Then LIG electrodes were bio-modified for the sensitive detection of Interleukin 6. Bioplastic precursors, as an alternative to PI, were explored as a potential route to green-LIG devices. Chitosan-based sheets were graphitised, and the properties of this LIG were investigated. The electron transfer rates at such electrodes are promising for future device applications. Finally, cork is used as a LIG precursor. Electrochemical cork-LIG sensors showed remarkable properties, with rapid electron transfer rates and a low detection limit for Tyrosine and dopamine. The results contained in this thesis present fast, inexpensive and eco-friendly options for LIG electrochemical sensor development. Not peer reviewed Accepted Version application/pdf Vaughan, E. 2023. Laser-induced graphene for electrochemical sensing applications. PhD Thesis, University College Cork. 164 https://hdl.handle.net/10468/15034 en University College Cork info:eu-repo/grantAgreement/EC/H2020::IA/814496/EU/Active & intelligent PAckaging materials and display cases as a tool for preventive conservation of Cultural Heritage./APACHE © 2023, Eoghan Vaughan. https://creativecommons.org/publicdomain/zero/1.0/ Electrochemistry Laser-induced graphene Material science Sustainable materials Electrochemical sensors Laser-induced graphene for electrochemical sensing applications Doctoral thesis Doctoral PhD - Doctor of Philosophyinfo:eu-repo/semantics/openAccess