PhD Thesis: Development of an Electrochemical Measurement at the Limits for Biosensor Applicati[...]

Organisation/Company CNRS Department Laboratoire d'analyse et d'architecture des systèmes Research Field Engineering Physics Technology Researcher Profile First Stage Researcher (R1) Application Deadline 16 Mar 2026 - 23:59 (UTC) Country France Type of Contract Temporary Job Status Full-time Hours Per Week 35 Offer Starting Date 1 Oct 2026 Is the job funded through the EU Research Framework Programme? Not funded by a EU programme Is the Job related to staff position within a Research Infrastructure? No Offer Description

The PhD thesis will take place in Toulouse within the MPN team at LAAS-CNRS, which offers a fabrication platform (cleanroom) and an electrical characterization platform (GHz VNA access), along with associated engineering support. Development of an Electrochemical Measurement at the Limits for Biosensor Applications Previous work has demonstrated the potential of electrochemical measurement using high-frequency (GHz) techniques, achieving faradaic current resolutions on the order of attoamperes (10^-18 A) [1-3]. It has also been shown that measurement based on faradaic shot noise is possible [4]. The challenge now is to transfer these techniques to a chip-compatible measurement system using a coplanar waveguide architecture, assess their sensitivities, evaluate the possibilities of combining them, and test them with real biological samples—going beyond simple proof-of-concept demonstrations on electrochemical entities without biological function. 1. Grall, S. et al. Attoampere Nanoelectrochemistry. Small 17, 2101253 (2021). 2. Awadein, M. et al. Nanoscale electrochemical charge transfer kinetics investigated by electrochemical scanning microwave microscopy. Nanoscale Adv. 10.1039.D2NA00671E (2022) doi:10.1039/D2NA00671E. 3. Awadein, M. et al. Electrochemical Scanning Microwave Microscopy Reveals Ion Intercalation Dynamics and Maps Active Sites in 2D Catalyst. Small 2500043 (2025) doi:10.1002/smll.202500043. 4. Grall, S. et al. Electrochemical Shot Noise of a Redox Monolayer. Phys. Rev. Lett. 130, 218001 (2023).

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