2026-04-22T21:58:40Zhttps://uvadoc.uva.es/oai/request
oai:uvadoc.uva.es:10324/558962025-01-13T08:12:15Zcom_10324_966com_10324_952com_10324_894col_10324_967
UVaDOC author Cisnal De La Rica, Ana author Ihmig, Frank R. author Fraile Marinero, Juan Carlos author Pérez Turiel, Javier author Muñoz Martinez, Victor 2022-10-07T12:50:53Z 2022-10-07T12:50:53Z 2019 Sensors, 2019, vol. 19, n. 12, 2725 1424-8220 https://uvadoc.uva.es/handle/10324/55896 10.3390/s19122725 Depending on their use, electrodes must have a certain size and design so as not to compromise their electrical characteristics. It is fundamental to be aware of all dependences on external factors that vary the electrochemical characteristics of the electrodes. When using implantable electrodes, the maximum charge injection capacity (CIC) is the total amount of charge that can be injected into the tissue in a reversible way. It is fundamental to know the relations between the characteristics of the microelectrode itself and its maximum CIC in order to develop microelectrodes that will be used in biomedical applications. CIC is a very complex measure that depends on many factors: material, size (geometric and effectiveness area), and shape of the implantable microelectrode and long-term behavior, composition, and temperature of the electrolyte. In this paper, our previously proposed measurement setup and automated calculation method are used to characterize a graphene microelectrode and to measure the behavior of a set of microelectrodes that have been developed in the Fraunhofer Institute for Biomedical Engineering (IBMT) labs. We provide an electrochemical evaluation of CIC for these microelectrodes by examining the role of the following variables: pulse width of the stimulation signal, electrode geometry and size, roughness factor, solution, and long-term behavior. We hope the results presented in this paper will be useful for future studies and for the manufacture of advanced implantable microelectrodes. eng Atribución 4.0 Internacional Application of a novel measurement setup for characterization of graphene microelectrodes and a comparative study of variables influencing charge injection limits of implantable microelectrodes info:eu-repo/semantics/article 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URL https://uvadoc.uva.es/bitstream/10324/55896/1/Application-novel-measurement-setup.pdf File MD5 b8e5f3d738ba814e0956d1620dfa9969 2959030 application/pdf Application-novel-measurement-setup.pdf