Wavelength-Controlled Dynamic Metathesis: A Light-Driven Exchange Reaction Between Disulfide and Diselenide Bonds

Fuqiang Fan, Shaobo Ji, Chenxing Sun, Cheng Liu, Ying Yu, Yu Fu and Huaping Xu Angew. Chem. Int. Ed., 2018, 57, 16426-16430. Though wavelength-controlled dynamic processes have been well developed, they mostly consist of light-triggered isomerization or the cleavage/formation of molecular connections. Control over dynamic metathesis reactions by different light wavelengths, which would be useful in controllable dynamic chemistry, has rarely been studied. Herein, taking advantage of the different bond energies of disulfide bonds and diselenide bonds, we realized a wavelength-driven exchange r...
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Selenium-Containing Polymers: Perspectives toward Diverse Applications in Both Adaptive and Biomedical Materials

Jiahao Xia, Tianyu Li, Chenjie Lu and Huaping Xu Macromolecules, 2018, 51, 7435-7455 Selenium is a semimetallic element lying in group XVI of the periodic table with its chemical properties resembling sulfur. But owing to its relatively low electronegativity and large atomic radius compared with sulfur, selenium also shows unique properties. This feature endows selenium-containing compounds with high reactivity and sensitivity. Although organic selenium chemistry has been developing very fast, the successful introduction of selenium into polymer science is rather scarce. Fortunately, we ...
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Gamma radiation responsive side-chain tellurium-containing polymer for cancer therapy

Fuqiang Fan, Shiqian Gao, Shaobo Ji, Yu Fu, Pengpeng Zhang and Huaping Xu  Mater. Chem. Front., 2018, 2, 2109-2115 The combination of chemotherapy and radiotherapy could not only enhances cancer treatment efficacy, but also shortens the period of the overall treatment and relieves the negative emotions of the patients during the remedy. Here, we presented a novel strategy for coordinating the chemotherapy drug CDDP with a tellurium-containing polymer, which restrained the tumour cytotoxicity of these two portions. After low dose γ-radiation, CDDP departed from the coordination complexes, and...
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Non-metal-Heteroatom-Doped Carbon dots: Synthesis and Property

Feng Li, Dayong Yang and Huaping Xu Chem. Eur. J., 2019, 25, 1165-1176 Carbon dots (CDs) are new materials with capability in bioimaging, optical device, catalysis, and many other fields. Their advantages, such as ease of large‐scale preparation, low cost of precursor, highly tunable photoluminescence, satisfactory biocompatibility, and photostability against photobleaching, make them competitive alternatives to conventional semiconductor‐based quantum dots and organic dyes. In order to overwhelm other luminescent materials in applications, their functionalities are still needed to impro...
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Xu group attended the 31st CCS Congress

31st CCS Congress
On Mar. 5th – 8th 2018, Prof. Huaping Xu and Lu Wang, Tianyu Li, Jiahao Xia, Chenxing Sun and Cheng Liu attended the 31st CCS Congress held in Hangzhou, Zhejiang. Prof. Huaping Xu gave an invited presentation of “Dynamic Chemistry of Selenium” on Mar. 6th. Lu Wang gave poster presentation on Mar. 6th. Tianyu Li, Jiahao Xia and Chenxing Sun gave poster presentation on Mar. 7th, respectively. Lu Wang received “Best Poster Award”.
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