Results 31 to 40 of about 43,522 (243)

Nanoporous Crystalline Composite Aerogels with Reduced Graphene Oxide

Molecules, 2020
High-porosity monolithic composite aerogels of syndiotactic polystyrene (sPS) and poly(2,6-dimethyl-1,4-phenylene oxide) (PPO) containing reduced graphene oxide (r-GO) were prepared and characterized.
Christophe Daniel, Baku Nagendra, Maria Rosaria Acocella, Esther Cascone, Gaetano Guerra   +4 more
doaj   +1 more source

ENTRAPMENT OF LIPASE B FROM CANDIDA ANTARCTICA IN TAILORED SOL-GEL MATRICES FOR THE SYNTHESIS OF BENZYL DECANOATE – IMPORTANCE OF USING AN ADDITIVE

Studia Universitatis Babes-Bolyai Chemia, 2023
Benzyl decanoate was successfully synthesized by the direct esterification of decanoic acid with benzyl alcohol mediated by lipase B from Candida antarctica immobilized by entrapment in a sol-gel matrix in a solvent-free system, using a ternary mixture ...
Larisa STELEA, Anna Maria TĂRTĂREANU, Adrian-Ioan DUDU   +2 more
doaj   +1 more source

Phase Engineering of Atomically Precise Nanoclusters (APNCs) of Gold and Beyond

Advanced Materials, EarlyView.
Engineering the structural phase of materials is of paramount importance for both fundamental research and practical applications. In this Review, we summarize the recent progress in controlling the phases of atomically precise nanoclusters (APNCs) of gold, silver and copper, as well as bimetallic systems. The phase‐enabled material properties of APNCs
Yitong Wang, Avirup Sardar, Weijie Ji, Zhongyu Liu, Rongchao Jin   +4 more
wiley   +1 more source

Comparative Study for the Effect of Fixative Material Type and Perfume Formulation Parameters on the Fixation time of Local Formulated Perfume with Brand Perfumes [PDF]

Engineering and Technology Journal, 2016
The effect of type of fixative material and the perfume formulation parameters (Concentration of ethyl alcohol, percentage of perfume and the percentage of the fixative used) were studied to determine the optimum conditions give perfume with high ...
Alaa D. Jawad Al-Bayati
doaj   +1 more source

True Closed‐Loop Recyclable Hydrogels Enabled by Imine Boronic Ester Crosslinking

Advanced Materials, EarlyView.
Subtle molecular differences in imine boronic ester crosslinkers profoundly influence hydrogel properties. 2‐formylphenylboronic acid crosslinkers form previously undisclosed 3‐amino‐benzoxaborole heterocycles, enhancing elasticity despite lower crosslinking density compared to their 4‐formylphenylboronic acid counterparts.
Jenna A. King, Joshua M. Litterio, Sean P. Larmore, Steven A. Lopez, Klaus Schmidt‐Rohr, Diego M. Alzate‐Sánchez   +5 more
wiley   +1 more source

Highly Enantio‐ and Diastereoselective Synthesis of Tetrahydrofuran Frameworks via Chiral Lewis Acid‐Catalyzed Formal [3+2] Cycloaddition of Allylsilanes

Angewandte Chemie, EarlyView.
The first catalytic asymmetric formal [3+2] cycloaddition of allylsilanes delivers cis‐2,5‐disubstituted tetrahydrofuran‐3‐ones that serve as versatile intermediates for the synthesis of diverse bioactive scaffolds. ABSTRACT A formal [3+2] cycloaddition via cyclization/1,2‐hydride shift initiated by nucleophilic attack of allylsilanes has been ...
Hosung Lee, Dong Kyu Kim, Pingshan Xin, Jin Won Lee, Terim Seo, Do Hyun Ryu   +5 more
wiley   +2 more sources

Quantifying primary oxidation products in the OH-initiated reaction of benzyl alcohol [PDF]

Atmospheric Chemistry and Physics
Benzyl alcohol is found in many volatile chemical products (VCPs) including a number of personal care products and industrial solvents. We report here on the products of the gas-phase oxidation of benzyl alcohol by OH and its dependence on nitric oxide (
R. S. Buenconsejo, S. M. Charan, J. H. Seinfeld, J. H. Seinfeld, P. O. Wennberg, P. O. Wennberg   +5 more
doaj   +1 more source

3D Printing of Soft Robotic Systems: Advances in Fabrication Strategies and Future Trends

Advanced Robotics Research, EarlyView.
Collectively, this review systematically examines 3D‐printed soft robotics, encompassing material selections, function integration, and manufacturing methodologies. Meanwhile, fabrication strategies are analyzed in order of increasing complexity, highlighting persistent challenges with proposed solutions.
Changjiang Liu, Bin Cui, Xumin Huang, Xiaoyu (Rayne) Zheng, T. Thang Vo‐Doan, Ruirui Qiao   +5 more
wiley   +1 more source

Heterobimetallic Janus Catalysts for the One‐Pot Synthesis of Polar‐Apolar Block Copolymers

Angewandte Chemie, EarlyView.
Heterobimetallic Janus catalysts act as bifunctional initiators, combining two distinct polymerisation mechanisms in one pot to deliver well‐defined apolar‐polar block copolymers. Combining Earth abundant Ti and Al catalysts for respective α‐olefin and lactone polymerisation, the orthogonal activity is enabled by unprecedented initiation from a Ti ...
Raju Chambenahalli, Gary S. Nichol, Jennifer A. Garden   +2 more
wiley   +2 more sources

Drug-induced epigenetic changes produce drug tolerance. [PDF]

PLoS Biology, 2007
Tolerance to drugs that affect neural activity is mediated, in part, by adaptive mechanisms that attempt to restore normal neural excitability. Changes in the expression of ion channel genes are thought to play an important role in these neural ...
Yan Wang, Harish R Krishnan, Alfredo Ghezzi, Jerry C P Yin, Nigel S Atkinson   +4 more
doaj   +1 more source