Simultaneous monitoring of quantum dots and their assembly and disassembly with PreScission protease using capillary electrophoresis with fluorescence detection |
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| Authors: | Jianhao Wang Jinchen Li Jianpeng Wang Li Liu Jinping Li Haifang Qin Shumin Ding Minli Fu Junling Ji Pengju Jiang Lin Qiu |
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| Affiliation: | 1. School of Pharmaceutical Engineering and Life Science, Changzhou University, Changzhou, Jiangsu, P. R. China;2. Institute of Pharmaceutical and Environmental Engineering, Changzhou Vocational Institute of Engineering, Changzhou, Jiangsu, P. R. China;3. Changzhou Meisheng Biomaterials Co., Ltd, Changzhou, Jiangsu, P. R. China |
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| Abstract: | A novel assay was developed for the simultaneous monitoring of quantum dots and their assembly and disassembly with PreScission protease using capillary electrophoresis with fluorescence detection. Quantum dots and PreScission protease were injected into a capillary sequentially, then mixed and assembled via a thioether bond upon coupling to glutathione S‐transferase tag inside the capillary. The in‐capillary assembly was influenced by the molar ratio and the time interval of injection. Furthermore, the simultaneous monitoring of quantum dots and their assembly with PreScission protease and glutathione induced disassembly was achieved by adjusting the sampling sequence and the time interval of injection. More importantly, the in‐capillary assay could be also applied to the online detection of glutathione. |
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| Keywords: | Capillary electrophoresis Glutathione Glutathione S‐transferase tag Quantum dots |
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