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3 results about "Scanning electrochemical microscopy" patented technology
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Scanning electrochemical microscopy (SECM) is a technique within the broader class of scanning probe microscopy (SPM) that is used to measure the local electrochemical behavior of liquid/solid, liquid/gas and liquid/liquid interfaces. Initial characterization of the technique was credited to University of Texas electrochemist, Allen J. Bard, in 1989. Since then, the theoretical underpinnings have matured to allow widespread use of the technique in chemistry, biology and materials science. Spatially resolved electrochemical signals can be acquired by measuring the current at an ultramicroelectrode (UME) tip as a function of precise tip position over a substrate region of interest. Interpretation of the SECM signal is based on the concept of diffusion-limited current. Two-dimensional raster scan information can be compiled to generate images of surface reactivity and chemical kinetics.
A method for testing the interface reaction kinetics of a Bi electrode of a Li-Bi battery
This invention relates to the field of electrochemical technology, and more particularly to a method for testing the reaction kinetics at the Bi electrode interface in Li-Bi batteries. The dual-probe measurement system constructed in this invention works collaboratively on a precise three-dimensional positioning platform of a shared scanning electrochemical microscope. One probe maps the electrochemical activity distribution on the electrode surface, visually reflecting the spatial location of low-activity phases, while the other Hg probe simultaneously records the Li content in the corresponding region. + Concentration or diffusion coefficient. This "functionally complementary, spatially synchronized" measurement mode can integrate observed electrochemical data, interfacial electrochemical activity, and Li... + The migration dynamics are directly related, thus providing experimental evidence for revealing the true rate-limiting steps in the phase transition process, enabling a more comprehensive and three-dimensional analysis of complex electrode processes, and making up for the limitations of single signal measurement.
Owner:WUCHUANG INTELLIGENT RESERVE (WUHAN) TECHNOLOGY CO LTD
A system and method for real-time dynamic in-situ detection of cell microdomain impedance based on scanning electrochemical microscopy
This invention belongs to the field of bioelectrochemical detection and cell interface characterization technology, specifically relating to a real-time dynamic in-situ detection system and method for cell micro-region impedance based on scanning electrochemical microscopy. The system includes: a conductive substrate electrode, a SECM probe, a cell culture module, a multi-channel electrochemical workstation, and a control system and imaging software. By precisely scanning near the cell surface using the SECM probe, impedance response signals are acquired simultaneously with the application of alternating excitation signals, enabling real-time dynamic in-situ detection of impedance in micro-regions on the surface of living cells, achieving sub-micron spatial resolution. This invention integrates impedance detection and electrochemical detection functions, enabling label-free, non-invasive continuous monitoring during cell culture, providing a novel high-resolution, multi-parameter synchronous acquisition analytical platform for cell physiological state research, drug screening, and pathological mechanism analysis.
Owner:XI AN JIAOTONG UNIV