Welcome Professor Song Qijun and Associate Professor Wang Chan from the School of Chemical Engineeri

On the afternoon of September 23, at the invitation of Associate Researcher Wang Chuanxi, New Energy Research Institute of Ningbo Institute of Materials, Professor Song Qijun and Associate Professor Wang Chan from the School of Chemistry and Materials Engineering of Jiangnan University came to our institute to conduct academic exchange activities. Academic report on "Research on New Methods of Biosensors Based on Optoelectronic Properties of Nanomaterials".

       Electrochemiluminescence is derived from electrochemistry and chemiluminescence, and is a specific chemiluminescence reaction initiated electrochemically on the electrode surface, including two processes of electrochemistry and chemiluminescence. As a classic ruthenium bipyridine electroluminescence system, when a certain voltage energy is applied to the anode of the working electrode, the divalent ruthenium bipyridine is oxidized to the trivalent ruthenium bipyridine, and the trivalent ruthenium can be oxidized by a strongly reducing ruthenium Ammonia is reduced to divalent ruthenium in an excited state, and the excited ruthenium decays by a fluorescence mechanism and releases energy in the form of photons with a wavelength of 620 nm, realizing the purpose of ultra-sensitive detection of ammonia substances. On this basis, the use of in-situ reduction of nitro compounds further expands the application range of ruthenium bipyridine electrodes. In addition, Professor Song also proposed a solid-phase electroluminescence electrode of iridium complexes, which has achieved good application results in practical biosensing.

       Due to their unique luminescent properties, fluorescent materials have great application potential in real-time biological imaging, photocatalysis, optoelectronic devices, and anti-counterfeiting. According to the current development trend of fluorescent materials, Mr. Wang discussed his research topic and showed us the scientific research results that have been achieved. For example, due to the poor chemical stability of copper nanoclusters, it is very difficult to obtain copper nanoclusters with smaller particle size. Mr. Wang has created a set of methods that can stably synthesize ultra-small particle size copper nanoclusters, and has achieved good results in real-time biological imaging and temperature detection by using its red light emission properties.

      After the report, the participants had an in-depth discussion on the results of scientific research experiments. After the meeting, accompanied by Associate Researcher Wang Chuanxi, Professor Song Qijun and Associate Professor Wang Chan visited the laboratory and test platform of the Institute of New Energy.