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2,807 results on '"Chen, Hong‐Yuan"'

102. Three new hasubanan-type alkaloids from the Stephania longa.

Author

Lin, Rong-Xiao, Fan, Lixia, Chen, Xin, Wu, Jundi, Liu, Zheng, Liu, Fang, Yang, An-Ping, Xia, Chenglai, Liu, Hui, and Chen, Hong-Yuan

Subjects
ALKALOIDS, X-ray crystallography, ANTI-infective agents
Abstract

Three new hasubanan-type alkaloids, stephalonine Q (1), stephalonine R (2) and stephalonine S (3), together with four known alkaloids, isolonganone (4), eletefine (5), aurantiamide (6), N-cinnamoyltyramine (7), were isolated from the whole plant of Stephania longa. Their structures were identified by NMR, HR-ESI-MS, CD methods and x-ray crystallography, as well as by comparison with the literature data. All isolated compounds were evaluated for their antimicrobial activities against five bacteria in vitro. Compound 5 displayed inhibitory activity against only S. aureus, with an MIC value of 50 μg/mL. [ABSTRACT FROM AUTHOR]

Published
2023
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103. Interface Engineering of Copper Nanocluster Assemblies with White‐Light Emission.

Author

Wang, Zhong‐Xia, Gao, Hang, Li, Xiao‐Qiong, Jia, Yi‐Lei, Wang, Ting, Cheng, Qiu‐Yue, Kang, Bin, Chen, Hong‐Yuan, and Xu, Jing‐Juan

Subjects
SURFACE chemistry, DENSITY functional theory, MASS spectrometry, COPPER
Abstract

Construction of white‐light emitters is of great importance in practical applications but is challenging for metal nanoclusters. Herein, arginine (Arg)‐mediated copper nanoclusters (Cu NCs) assemblies with white‐light emission (WLE) are reported for the first time. The multidentate ligand, Arg, not only effectively tailors the high stability and locally‐excited emission (LES) of aqueous phase Cu NCs, but also bridges 1‐naphthalenol methylcarbamate (NMC) to generate a blue emitter via through‐space interactions (TSIs), resulting in a stable mixed light. Density functional theory calculation and mass spectrum further confirm that Arg can allow for the formation of strong hydrogen‐bonds with the ligand 2,4‐diaminotoluene of Cu NCs, and formation of TSIs‐based complexes with NMC. More importantly, pure white‐light emission (WLE) with Commission Internationale de L'Eclairagecoordination (0.30, 0.31) is observed by regulating the ratio between Arg and the interfacial ligand of NMC. The findings not only provide a new perspective for the construction of WLE emitters via interface modification chemistry but also open a window to gain insight into the mechanism of interface engineering. [ABSTRACT FROM AUTHOR]

Published
2023
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113. Smart Nanosensitizers for Activatable Sono‐Photodynamic Immunotherapy of Tumors by Redox‐Controlled Disassembly

Author

Liu, Lingjun, primary, Zhang, Junya, additional, An, Ruibing, additional, Xue, Qi, additional, Cheng, Xi, additional, Hu, Yuxuan, additional, Huang, Zheng, additional, Wu, Luyan, additional, Zeng, Wenhui, additional, Miao, Yinxing, additional, Li, Jie, additional, Zhou, Yu, additional, Chen, Hong‐Yuan, additional, Liu, Hong, additional, and Ye, Deju, additional

Published
2023
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136. Silicon Nanowires

Author

He, Yao, Fan, Chunhai, Chen, Hong-Yuan, Kretsinger, Robert H., editor, Uversky, Vladimir N., editor, and Permyakov, Eugene A., editor

Published
2013
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149. A Nanopore‐Based Saccharide Sensor

Author

Zhang, Shanyu, primary, Cao, Zhenyuan, additional, Fan, Pingping, additional, Wang, Yuqin, additional, Jia, Wendong, additional, Wang, Liying, additional, Wang, Kefan, additional, Liu, Yao, additional, Du, Xiaoyu, additional, Hu, Chengzhen, additional, Zhang, Panke, additional, Chen, Hong‐Yuan, additional, and Huang, Shuo, additional

Published
2022
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