Measuring system for measuring molecular electrical properties by consolidation method

Abstract

The invention discloses a measuring system for measuring molecular electrical properties by a consolidation method, wherein a piezoelectric ceramic tube in a vertical cylindrical shape is vertically fixed in the center of a lifting platform, the top and bottom ends of the piezoelectric ceramic tube respectively pass through the top surface and bottom surface of the lifting platform, and a gold probe electrode is disposed at the central position of the bottom end surface of the piezoelectric ceramic tube; a support rod lifts the lifting platform directly above a sample stage, the gold probe electrode is directly located above the sample stage, a rectangular sample slot is arranged at the center of the top surface of the sample stage, and a gold piece is placed in the sample slot. The modules in the system provided by the invention comprise a piezoelectric ceramic tube control module, a linear displacement driver control module, a data acquisition module, a data processing module, an experimental real-time adjustment module and an electrochemical workstation. The measuring system is simple in structure, low in cost, and simple in operation, has the advantages such as immediacy, accuracy, real-time, simple operation and easy learning, and can provide rich molecular internal information at a single molecular level through electrical measurement.

Description

technical field [0001] The invention relates to the technical field of measuring molecular electrical properties, in particular to a measurement system for measuring molecular electrical properties by a consolidation method. Background technique [0002] Single-molecule conductometric measurement technology is an important class of techniques that use electrical methods to measure the electrical properties of single molecules. Single Molecule Detection (SMD) technology is different from general conventional detection technology. What is observed is the individual behavior of a single molecule. Single Molecule Detection technology is widely used in environmental safety, biotechnology, sensors, food safety and other fields. Single-molecule detection has reached the limit of molecular detection, which has been pursued by people for a long time. Compared with traditional analysis methods, single-molecule detection method studies the individual behavior of the system in the non-...

AI Technical Summary

Problems solved by technology

[0003] In recent years, with the development of molecular electronics research, more and more attention has been paid to the electrical properties of single molecules and their measurement methods, such as the use of scanning probe imaging technology to detect molecular electrical properties, atomic force microscopy (AFM) and single-molecule fluorescence. Existing single-molecule conductometric measurement techniques, such as analysis, have complex structures and poor accuracy

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