Jiahao Xia, Peng Zhao, Ke Zheng, Chenjie Lu, Shouchun Yin and Huaping Xu Angew. Chem. Int. Ed., 2019, 131, 552-556. Surface modification is an important technique in fields, such as, self‐cleaning, surface patterning, sensing, and detection. The diselenide bond was shown to be a dynamic covalent bond that can undergo a diselenide metathesis reaction simply under visible light irradiation. Herein we develop this diselenide dynamic chemistry into a versatile surface modification method with a fast response and reversibility. The diselenide bond could be modified onto various substrates, su...

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...

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 ...

Shaobo Ji and Huaping Xu Sci. China Chem., 2018, 10.1007/s11426-018-9352-x  

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...

Xu, H.*; Chen, X.* and Kaplan, D.* ACS Biomaterials Science & Engineering, 2018, 4, 1926-1927