Results 81 to 90 of about 280,815 (357)

Synchronous Modulation of H-bond Interaction and Steric Hindrance via Bio-molecular Additive Screening in Zn Batteries.

Angewandte Chemie
In addressing challenges such as side reaction and dendrite formation, electrolyte modification with bio-molecule sugar species has emerged as a promising avenue for Zn anode stabilization. Nevertheless, considering the structural variability of sugar, a
Wenyi Guo, Liang Xu, Yiwen Su, Liming Zhao, Yifan Ding, Yuhan Zou, Guangping Zheng, Tao Cheng, Jingyu Sun   +8 more
semanticscholar   +1 more source

Is Young's Modulus a Critical Coating Property Determining Fouling‐Release Performance of Marine Coatings?

Advanced Engineering Materials, EarlyView.
The release of foulers from protective marine coatings is determined by several interrelated material properties, including the strength of Young's modulus, the flexibility of chain segments, the surface free energy, and the magnitude of hydrodynamic stress.
Johann C. Schaal, Andreas Brinkmann, Andreas Hartwig   +2 more
wiley   +1 more source

Surface manipulation for prevention of migratory viscous crude oil fouling in superhydrophilic membranes

Nature Communications, 2023
Here, we present a proactive fouling prevention mechanism that endows superhydrophilic membranes with antifouling capability against migratory viscous crude oil fouling. By simulating the hierarchical architecture/chemical composition of a dahlia leaf, a
Yuanyuan Zhao, Xiaobin Yang, Zhongjun Cheng, Cher Hon Lau, Jun Ma, Lu Shao   +5 more
doaj   +1 more source

Controllable Generation of Reactive Oxygen Species on Cyano-Group-Modified Carbon Nitride for Selective Epoxidation of Styrene

The Innovation, 2021
Summary: The controlled generation of reactive oxygen species (ROS) to selectively epoxidize styrene is a grand challenge. Herein, cyano-group-modified carbon nitrides (CNCYx and CN-Ty) are prepared, and the catalysts show better performance in ...
Hao Tan, Peng Kong, Riguang Zhang, Mengting Gao, Meixian Liu, Xianmo Gu, Weifeng Liu, Zhanfeng Zheng   +7 more
doaj   +1 more source

Substrate specificity provides insights into the sugar donor recognition mechanism of O-GlcNAc transferase (OGT). [PDF]

, 2013
O-Linked β-N-acetylglucosaminyl transferase (OGT) plays an important role in the glycosylation of proteins, which is involved in various cellular events.
Chen, Xi, Chen, Yi, Li, Lei, Liu, Pi, Liu, Xiaoyan, Ma, Xiaofeng, Muthana, Musleh M, Sun, Hong, Wang, Peng G, Yan, Hui, Zhang, Lianwen, Zhou, Feng   +11 more
core   +2 more sources

Steric Hindrance and Geometrical Isomerism [PDF]

Nature, 1934
IT is not often that evidence in the form of steric hindrance is available for confirming the configurations of geometrical isomers among ethylenic compounds. The following observations are thus of interest. cis--Dibromocinnamic acid1 (m.p. 100°) esterifies to the extent of only 6 per cent in one hour, and 33 per cent in 16 hours, by the Fischer-Speier
openaire   +1 more source

Exploring Dipolar Dynamics and Ionic Transport in Metal‐Organic Frameworks: Experimental and Theoretical Insights

Advanced Functional Materials, EarlyView.
In this study, the interplay of dipolar dynamics and ionic charge transport in MOF compounds is investigated. Synthesizing the novel structure CFA‐25 with integrated freely rotating dipolar groups, local and macroscopic effects, including interactions with Cs cations are explored.
Ralph Freund, Arthur Schulz, Peter Lunkenheimer, Maryana Kraft, Thomas Bergler, Harald Oberhofer, Dirk Volkmer   +6 more
wiley   +1 more source

Enhancing Optoelectronic Properties in Phthalocyanine‐Based SURMOFs: Synthesis of ABAB Linkers by Avoiding Statistical Condensation with Tailored Building Blocks

Advanced Functional Materials, EarlyView.
A novel phthalocyanine (PC)‐based metal–organic framework (MOFs) is synthesized using ditopic PC linkers obtained through regioselective statistical condensation. The resulting MOF exhibits significant improvements in electronic absorption, thereby enhancing the material's performance in light harvesting and energy conversion.
Lukas S. Langer, Mareen Stahlberger, Xiaojing Liu, Yi Luo, Niklas E. Häußermann, Puja Singhvi, Yidong Liu, Olaf Fuhr, Martin Nieger, Lars Heinke, Thomas Heine, Christof Wöll, Stefan Bräse   +12 more
wiley   +1 more source

Substrates incorporating unnatural amino acids are separately detectable for chymotrypsin and subtilisin with similar specificity

Results in Chemistry, 2023
Protease specificity depends on the three-dimensional structure and sequence of the protease, and each protease plays a different role. Chymotrypsin and subtilisin have similar specificity for recognizing aromatic and hydrophobic amino acid residues ...
Yuuki Yamawaki, Tamaki Kato
doaj   +1 more source

Syntheses and Steric Hindrances in 13β-Isopropylgonanes

Chemical and Pharmaceutical Bulletin, 1965
dl-18, 18-Dimethylestradiol 3-methyl ether (XII), dl-18, 18-dimethyl-19-nortestosterone (II) and their derivatives were synthesized starting from 1-vinyl-6-methoxy-1-tetralol (III) and 2-isopropyl-1, 3-crclopentanedione (IV). The steric effect of the 13-isopropyl group over 17-position was observed in every kind of reactions in this series. Both II and
K, Hiraga, T, Asako, T, Miki
openaire   +2 more sources