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Various authors. Anal Bioanal Chem. 2002;372:233–332. Anon. Obituary. Biosens Bioelectron. 2020;163:112207. Nakamura H. Current status of water environment and their microbial biosensor techniques—part II: recent trends in microbial biosensor development. Anal Bioanal Chem. 2018;410:3967–89. CAS Article Google Scholar Lagarde F, Jaffrezic-Renault N. Cell-based electrochemical biosensors for water quality assessment. Anal Bioanal Chem. 2011;400:947–64. CAS Article Google Scholar Nakamura H, Karube I. Current research activities in biosensors. Anal Bioanal Chem. 2003;377:446–68. CAS Article Google Scholar Download references Open Access funding enabled and organized by Projekt DEAL. Institute for Analytical Biochemistry, University of Potsdam, Karl-Liebknecht-Str., 14476, Potsdam, Germany Frieder W. Scheller Institute of Technical Biochemistry, University of Stuttgart, Allmandring 31, 70569, Stuttgart, Germany Rolf Schmid You can also search for this author in PubMed Google Scholar You can also search for this author in PubMed Google Scholar Correspondence to Rolf Schmid. The authors declare that there are no conflicts of interest. Springer Nature remains neutral with regard to jurisdictional claims in published maps and institutional affiliations. Open Access This article is licensed under a Creative Commons Attribution 4.0 International License, which permits use, sharing, adaptation, distribution and reproduction in any medium or format, as long as you give appropriate credit to the original author(s) and the source, provide a link to the Creative Commons licence, and indicate if changes were made. The images or other third party material in this article are included in the article's Creative Commons licence, unless indicated otherwise in a credit line to the material. If material is not included in the article's Creative Commons licence and your intended use is not permitted by statutory regulation or exceeds the permitted use, you will need to obtain permission directly from the copyright holder. To view a copy of this licence, visit http://creativecommons.org/licenses/by/4.0/. Reprints and Permissions Scheller, F.W., Schmid, R. A tribute to Isao Karube (1942–2020) and his influence on sensor science. Anal Bioanal Chem (2020). https://doi.org/10.1007/s00216-020-02946-5 Download citation Received: 01 September 2020 Accepted: 07 September 2020 Published: 18 September 2020 DOI: https://doi.org/10.1007/s00216-020-02946-5