Results 51 to 60 of about 1,031,429 (341)

Design of Efficient and Mechanically Robust Anion Exchange Membrane for Water Electrolysis Achieved by Chemically Crosslinked Elastomers using Polyfluorene‐Based Conjugated Polymers

Advanced Functional Materials, EarlyView.
High‐performance SEBS‐PFB AEM is developed by crosslinking SEBS‐amine with polyfluorene‐based crosslinker containing benzene spacer. With the superior electrochemical and mechanical properties, SEBS‐PFB enabled an AEMWE single cell to achieve a high current density of 14.0 A cm−2 at 2.0 V and 80 °C in 1 m KOH, using a PtRu/C cathode and Ni2Fe anode ...
Hyun Soo Kwon, Jaeho Byeon, Chulhee Lim, Jinseok Park, Jaejoon Lee, Jaeyoung Choi, Tae Hoon Kim, Jinwoo Lee, Bumjoon J. Kim   +8 more
wiley   +1 more source

Diastereo-divergent synthesis of chiral hindered ethers via a synergistic calcium(II)/gold(I) catalyzed cascade hydration/1,4-addition reaction

Nature Communications
Hindered ethers are ubiquitous in natural products and bioactive molecules. However, developing an efficient method for the stereocontrolled synthesis of all stereoisomers of chiral hindered ethers is highly desirable but challenging.
Xiangfeng Lin, Xia Mu, Hongqiang Cui, Qian Li, Zhaochi Feng, Yan Liu, Guohui Li, Can Li   +7 more
doaj   +1 more source

Methylated Flavonols from Amomum koenigii J.F.Gmel. and Their Antimicrobial and Antioxidant Activities

Biochemistry Research International, 2020
Methylated flavonols form a special group with modulating biological activities in comparison with kaempferol and quercetin. The present study isolated ten compounds including two kaempferol methyl ethers: 5-hydroxy-3,7,4′-trimethoxyflavone (1), 3 ...
Minh Giang Phan, Thi Viet Huong Do, Quoc Binh Nguyen   +2 more
doaj   +1 more source

Alloevodionol methyl ether

Acta Crystallographica Section E Structure Reports Online, 2001
The crystal structure determination of one of the substituted α-chromene components isolated in the hexane extraction of the fruit of the indigenous Australian tree Melicope ellyrana, the methyl ether of the known compound alloevodionol, is reported.
Smith, Graham, Wang, Ertong, Bartley, John, Bott, Raymond   +3 more
openaire   +2 more sources

Reconfigurable Magnetic Soft Microrobot for Acoustically Triggered Targeted Bacterial Sterilization

Advanced Functional Materials, EarlyView.
Reconfigurable magnetic soft microrobots integrate in situ‐grown piezoelectric zinc oxide nanorods that produce reactive oxygen species upon acoustic excitation. Combining magnetically guided transport with thermally induced planar reconfiguration, the microrobots achieve targeted delivery and enhanced bacterial sterilization through efficient on ...
Quan Gao, Fan Li, Jiajie Gao, Elric Zhang, Yingdong Su, Ni Qin, Hao Ye, Josep Puigmartí, Giuseppe Cantarella, Simone Schuerle, Jiang Wu, Bradley J. Nelson, Salvador Pané   +12 more
wiley   +1 more source

Final Report on the Safety Assessment of PPG-2 Methyl Ether, PPG-3 Methyl Ether, and PPG-2 Methyl Ether Acetate [PDF]

International Journal of Toxicology, 2009
PPG-2 methyl ether, PPG-3 methyl ether, and PPG-2 methyl ether acetate are used in cosmetics as fragrance ingredients and/or solvents at concentrations of 0.4% to 2%. Propylene glycol ethers are rapidly absorbed and distributed throughout the body when introduced by inhalation or oral exposure, but the inhalation toxicity of PPG-2 methyl ether vapor ...
Valerie, Robinson, Wilma F, Bergfeld, Donald V, Belsito, Curtis D, Klaassen, James G, Marks, Ronald C, Shank, Thomas J, Slaga, Paul W, Snyder, F Alan, Andersen   +8 more
openaire   +2 more sources

Solvent‐Free Bonding Mechanisms and Microstructure Engineering in Dry Electrode Technology for Lithium‐Ion Batteries

Advanced Functional Materials, EarlyView.
Dry electrode technology revolutionizes battery manufacturing by eliminating toxic solvents and energy‐intensive drying. This work details two promising techniques: dry spray deposition and polymer fibrillation. How their unique solvent‐free bonding mechanisms create uniform microstructures for thicker, denser electrodes, boosting energy density and ...
Yuhao Liang, Hao Long, Zimo Huang, Ting He, Xueming Chen, Meng Li, Hao Chen, Shanqing Zhang   +7 more
wiley   +1 more source

Efficient Synthesis of a Range of 1-Hydroxy-2-(1-Alkyloxymethyl)-9,10-Anthraquinone Derivatives [PDF]

Iranian Journal of Chemistry & Chemical Engineering, 1995
Five new 1-hydroxy-2-(1-alkyloxymethyl)-9,10-Anthraquinones (9a-e) have been prepared. Selective nitration of 2-methyl-9,10-anthraquinone, reduction to the corresponding amine, diazotization and treatment by sulfuric acid solution afforded the 1-hydroxy ...
Hashem Sharghi, Ali Forghaniha
doaj  

Mesoporous Carbon Thin Films with Large Mesopores as Model Material for Electrochemical Applications

Advanced Functional Materials, EarlyView.
Mesoporous carbon thin films possessing 70 nm mesopores are prepared on titanium substrates by soft templating of resol resins with a self‐synthesized poly(ethylene oxide)‐block‐poly(hexyl acrylate) block copolymer. A strategy to avoid corrosion of the metal substrate is presented, and the films are extensively characterized in terms of morphology ...
Lysander Q. Wagner, Joshua Schober, Pascal Dippell, Chantal Glatthaar, Smail Mekhilef, David Schäfer, Hannes Hergert, Marcus Rohnke, Matthias T. Elm, Bernd M. Smarsly   +9 more
wiley   +1 more source

Profiling of volatile compounds in four Egyptian date cultivars

Пищевые системы
Volatile compound plays an important role in consumers’ satisfaction and influences further consumption of the date fruit. Thus, the study analyzed the volatile compounds of three date fruit cultivars: Barhy, Samani, Zaghloul at khalal stage of ripeness (
T. G. Abedelmaksoud, M. A. Hassan, M. T. M. Assous, A. E. R. M. Khalaf-Allah   +3 more
doaj   +1 more source