Results 61 to 70 of about 40,178 (259)

Preparative separation of C19-diterpenoid alkaloids from Aconitum carmichaelii Debx by pH‑zone-refining counter-current chromatography

Química Nova, 2013
The technique of pH-zone-refining counter-current chromatography was successfully applied to preparatively separate three C19-diterpenoid alkaloids from the crude extracts of Aconitum carmichaelii for the first time using a two-phase solvent system of ...
Dahui Liu, Xikai Shu, Xiao Wang, Lei Fang, Luqi Huang, Xingjun Xi, Zhenjia Zheng   +6 more
doaj   +1 more source

Nucleation‐Controlled Reconstruction of CuOx for Selective CO2 Electroreduction

Advanced Functional Materials, EarlyView.
The ratio of oxygen vacancies (Ov) and exposed Cu2O (111)/(200) of CuOx precatalyst is modulated by nucleation control of Cu(OH)2 precursor. Low Ov ratio and high ratio of Cu2O (111)/(200) in slow‐nucleated CuOx reconstructs to high‐coordinated oxide‐derived copper (OD‐Cu) during electrochemical CO2 reduction reaction (CO2RR) and exhibits enhanced ...
Ying Ying Ch'ng, Zhipeng Ma, Ming Zhang, Shujie Zhou, Varun Kundi, Priyank Vijaya Kumar, Wenyu Zhong, Yuwei Yang, Jitraporn Vongsvivut, Qinfen Gu, Xiaoxuan Luo, Lixue Jiang, Rahman Daiyan, Zhaojun Han, Rose Amal   +14 more
wiley   +1 more source

Preparative Separation of Spirobisnaphthalenes from Endophytic Fungus Berkleasmium sp. Dzf12 by High-Speed Counter-Current Chromatography

Molecules, 2013
High-speed counter-current chromatography (HSCCC) was applied for the first time for the preparative separation of spirobisnaphthalenes from a crude extract of the endophytic fungus Berkleasmium sp.
Ligang Zhou, Youliang Peng, Mingan Wang, Yan Mou, Chao Luo, Ruiya Luo, Shiqiong Lu, Tijiang Shan   +7 more
doaj   +1 more source

Dual‐Site Ru Single‐Atoms and RuP Nanoclusters on N, P, and B Co‐Doped Porous Carbon for Efficient Alkaline HER and AEM Water Electrolysis

Advanced Functional Materials, EarlyView.
Ru single atoms and RuP nanoclusters are co‐anchored in N, P, and B co‐doped porous carbon nanospheres via in situ carbonization/phosphidation of a boronate polymer precursor. RuP activates water, while nearby Ru single atoms accelerate H2 formation through H* transfer. The catalyst delivers low overpotential and high durability in alkaline HER and AEM
Xiaohong Wang, Juguo Dai, Dongxu Li, Jianghua Wu, Hucheng Fu, Yiting Xu, Xueqiang Qi, Qian Xue, Yanbin Shen, Xiaoqing Pan, Conghui Yuan, Shuifen Xie, Andreu Cabot, Lizong Dai   +13 more
wiley   +1 more source

LC/MS Guided Isolation of Alkaloids from Lotus Leaves by pH-Zone-Refining Counter-Current Chromatography

Molecules, 2011
The traditional methods used in natural product separation primarily target the major components and the minor components may thus be lost during the separation procedure.
Rui-Lin Hu, Zhang-Fa Yang, Yuan-Jiang Pan, Xiao-Jing Dai, Cui-Rong Sun, Xia Xu   +5 more
doaj   +1 more source

Effects of Molecular Designs and Double‐Network Morphologies for Bioadhesive Semiconductors

Advanced Functional Materials, EarlyView.
This study establishes molecular‐to‐mesoscale design rules for bioadhesive semiconducting polymers (BASCs). It identifies how side‐chain length, double‐network formation, and film thickness modulate adhesion strength and electronic performance, providing insight into the rational design of intrinsically adhesive semiconductors for stable and efficient ...
Zhichang Liu, Nan Li, Yuqing Chen, Naisong Shan, Shinya Wai, Jie‐Hao Chen, Aidan Ziaja, Shrayesh N. Patel, Sihong Wang   +8 more
wiley   +1 more source

Preparative Separation of Sulfur-Containing Diketopiperazines from Marine Fungus Cladosporium sp. Using High-Speed Counter-Current Chromatography in Stepwise Elution Mode

Marine Drugs, 2015
High-speed counter-current chromatography (HSCCC) was successively applied to the separation of three sulfur-containing diketopiperazines (DKPs) (including two new compounds cladosporin A (1) and cladosporin B (3), and a known compound haematocin (2 ...
Binbin Gu, Yanying Zhang, Lijian Ding, Shan He, Bin Wu, Junde Dong, Peng Zhu, Juanjuan Chen, Jinrong Zhang, Xiaojun Yan   +9 more
doaj   +1 more source

4D‐Printable Poly(Thio)urethane Photoresins With Reactive Oxygen Species Responsiveness and Anti‐Inflammatory Functionality

Advanced Functional Materials, EarlyView.
This work introduces UV‐curable poly(thio)urethane (PSU) thermosets as 4D printable scaffolds responsive to oxidative stress. PSU networks with 100 wt.% polypropylene glycol (PPG) effectively suppress inflammatory markers in microglial cells to basal values.
Xabier Lopez de Pariza, Lolita Arévalo‐Lagos, Louise Breloy, Oihane Varela, Aitor Larrañaga, Juan F. Cadavid‐Vargas, Olaia Garagarza‐Goienetxea, Melissa Moya‐Granados, Vanessa Bagnarello, Haritz Sardon, Miryam Criado‐Gonzalez   +10 more
wiley   +1 more source

A novel and high-efficient method for the preparation of heat-stable antifungal factor from Lysobacter enzymogenes by high-speed counter-current chromatography. [PDF]

Front Microbiol, 2023
Sun W, Tang B, Dong L, Xu J, Zhao Y, Liu F.   +5 more
europepmc   +1 more source

Photo‐Controlled Antibacterial Drug Release From DASA‐Coated Silica Particles for Improved Treatment of Wound Infections

Advanced Functional Materials, EarlyView.
Synthesis and characterization of light‐responsive donor–acceptor Stenhouse adducts (DASA)‐coated chlorhexidine‐loaded silica nanoparticles. Such a controllable drug‐delivery system enables the release of the antimicrobial drug on demand and in consecutive cycles, thereby maintaining the concentration within the therapeutic window.
Michèle Clerc, Flavia Zuber, Lea Oberhänsli, Yvonne Elbs‐Glatz, Maria M. Miguel, Vera M. Kissling, Qun Ren, Markus Rottmar, Luciano F. Boesel, Giorgia Giovannini   +9 more
wiley   +1 more source