Results 51 to 60 of about 122,535 (318)

Oxidative aromatization of olefins with dioxygen catalyzed by palladium trifluoroacetate [PDF]

, 2008
Molecular oxygen can replace sacrificial olefins as the hydrogen acceptor in the palladium trifluoroacetate catalyzed dehydrogenation of cyclohexene and related cyclic olefins into aromatics.
Bercaw, John E., Hazari, Nilay, Labinger, Jay A.   +2 more
core  

Upconversion Nanoparticles Embedded Photonic Contact Lens for Transepithelial Corneal Crosslinking Using Hyaluronate – Riboflavin Conjugate

Advanced Functional Materials, EarlyView.
A minimally invasive, transepithelial corneal cross‐linking (TE‐CXL) approach is presented using upconversion nanoparticles (UCNPs)‐loaded contact lenses (UCLs), after topical delivery of hyaluronate–riboflavin conjugates. The NIR‐to‐UV/blue light conversion by UCNPs in a UCL can activate riboflavin for TE‐CXL, resulting in the biomechanical strength ...
Gibum Lee, Inhoo Choi, Anara Molkenova, Yengwoo Son, Seungmin Yang, Mina Kwon, Tae‐Im Kim, Ki Su Kim, Sei Kwang Hahn   +8 more
wiley   +1 more source

Oxidation of Cyclohexane to Cylohexanol and Cyclohexanone Over H₄[a-SiW₁₂O₄₀]/TiO₂ Catalyst

Indonesian Journal of Chemistry, 2016
Oxidation of cyclohexane to cyclohexanol and cyclohexanone was carried out using H4[a-SiW12O40]/TiO2 as catalyst. In the first experiment, catalyst H4[a-SiW12O40]/TiO2 was synthesized and characterized using FTIR spectroscopy and X-Ray analysis.
Aldes Lesbani, Fatmawati Fatmawati, Risfidian Mohadi, Najma Annuria Fithri, Dedi Rohendi   +4 more
doaj   +1 more source

Antitumor Profile of Carbon-Bridged Steroids (CBS) and Triterpenoids

Marine Drugs, 2021
This review focuses on the rare group of carbon-bridged steroids (CBS) and triterpenoids found in various natural sources such as green, yellow-green, and red algae, marine sponges, soft corals, ascidians, starfish, and other marine invertebrates.
Valery M. Dembitsky, Tatyana A. Gloriozova, Vladimir V. Poroikov   +2 more
doaj   +1 more source

Universal Ratios of Characteristic Lengths in Semidilute Polymer Solutions

, 2002
We use experimental and simulation data from the literature to infer five characteristic lengths, denoted $\xi_s$, $\xi_f$, $\xi_\Pi$, $\xi_\phi$, and $\xi_D$ of a semidilute polymer solution.
Huang, Jung-Ren, Witten, T. A.
core   +3 more sources

Liquid crystalline properties of unsymmetrically substituted phthalocyanines: structural features leading to nematic mesophase materials [PDF]

, 2014
A novel homologous series of four 1,4,8,11,15,18-hexakis(pentyl)-22-methyl-25-hydroxyalkylphthalocyanine derivatives with the hydroxyalkyl chain varying from hydroxynonyl through to hydroxydodecyl has been synthesized to investigate the role of the ...
Bryant, Geoffrey, Cambrier, Isabelle, Cammidge, Andy, Cook, Mike, Garland, Andrew   +4 more
core   +1 more source

Electroactive Liquid Crystal Elastomers as Soft Actuators

Advanced Functional Materials, EarlyView.
Electroactive liquid crystal elastomers (eLCEs) can be actuated via electromechanical, electrochemical, or electrothermal effects. a) Electromechanical effects include Maxwell stress, electrostriction, and the electroclinic effect. b) Electrochemical effects arise from electrode redox reactions.
Yakui Deng, Min‐Hui Li
wiley   +1 more source

Trispyrazolylborate Ligands Supported on Vinyl Addition Polynorbornenes and Their Copper Derivatives as Recyclable Catalysts [PDF]

, 2019
Polynorbornenes prepared by vinyl addition poly- merization and bearing pendant alkenyl groups serve as skeletons to support trispyrazolylborate ligands (Tpx) built at those alkenyl sites.
Albéniz Jiménez, Ana Carmen, Beltrán de Heredia Rentería, Juan, Díaz Requejo, María del Mar, Molina de la Torre, Jesús Ángel, Pérez Ortega, Ignacio, Pérez, Pedro J., Rodríguez, Manuel R.   +6 more
core   +2 more sources

Photo‐Switching Thermal and Lithium‐Ion Conductivity in Azobenzene Polymers

Advanced Functional Materials, EarlyView.
Light‐responsive azobenzene polymers control thermal and ionic transport simultaneously through structural transitions. UV illumination disrupts π–π stacking, converting crystalline trans states to amorphous cis configurations. Thermal conductivity drops from 0.45 to 0.15 W·m−1·K−1 while Li+ diffusivity increases 100 fold. This dual transport switching
Jaeuk Sung, Jungwoo Shin, Qiujie Zhao, Minjee Kang, Christopher Evans, Cecilia Leal, Paul V. Braun, David G. Cahill   +7 more
wiley   +1 more source

Construction of a Chemical Kinetic Model of Five-Component Gasoline Surrogates under Lean Conditions

Molecules, 2022
The requirements for improving the efficiency of internal combustion engines and reducing emissions have promoted the development of new combustion technologies under extreme operating conditions (e.g., lean combustion), and the ignition and combustion ...
Chao Yang, Zhaolei Zheng
doaj   +1 more source