Results 51 to 60 of about 11,623 (281)

σ- versus π-Activation of Alkynyl Benzoates Using B(C6F5)3

Molecules, 2015
We have prepared a range of alkynyl benzoates in high yields and have investigated their reactivities with the strong Lewis acid B(C6F5)3. In such molecules both σ-activation of the carbonyl and π-activation of the alkyne are possible. In contrast to the
Alexander Bähr, Lewis C. Wilkins, Kevin Ollegott, Benson M. Kariuki, Rebecca L. Melen   +4 more
doaj   +1 more source

Temporal response to harmonic driving in electroconvection

, 2011
The temporal evolution of the spatially periodic electroconvection (EC) patterns has been studied within the period of the driving ac voltage by monitoring the light intensity diffracted from the pattern.
A. Buka, A. N. Trufanov, H. Amm, L. Kramer, L. Kramer, L. M. Blinov, M. I. Barnik, N. Felici, N. V. Madhusudana, Nándor Éber, P. G. de Gennes, Tibor Tóth-Katona, Ágnes Buka   +12 more
core   +1 more source

Directed assembly via selectively positioned host functionality [PDF]

, 2013
Introduction of distal carboxylic acid groups over two positions at the upper-rim of a di-O-alkylcalix[4]arene provides facile control over coordination polymer or discrete metal-organic capsule formation.
Beavers, Christine M, Cholewa, Piotr P, Dalgarno, Scott J, Teat, Simon J   +3 more
core   +1 more source

Rational Fine‐Tuning of MOF Pore Metrics: Enhanced SO2 Capture and Sensing with Optimal Multi‐Site Interactions

Advanced Functional Materials, EarlyView.
A pore tuning strategy to amplify the multi‐site MOF‐SO2 interactions is proposed to achieve an enhanced trace SO2 capture and chemiresistive sensing in highly stable isostructural DMOFs by annelating benzene rings. This work provides a facile strategy to achieve tailor‐made stable MOF materials for specific multifunctional applications.
Shanghua Xing, Abdulrahman Mohabbat, István Boldog, Jens Möllmer, Marcus Lange, Yulyan Haiduk, Tobias Heinen, Vladimir Pankov, Oliver Weingart, Christoph Janiak   +9 more
wiley   +1 more source

Black raspberry–mediated metabolic changes in patients with familial adenomatous polyposis associated with rectal polyp regression

Food Frontiers
Familial adenomatous polyposis (FAP) patients face an almost certain 100% risk of developing colorectal cancer, necessitating prophylactic colectomy to prevent disease progression. A crucial goal is to hinder this progression.
Yi‐Wen Huang, Hui‐zhi Chen, Ben Niu, Weijie Wu, Haiyan Gao, Jianhua Yu, Li‐Shu Wang   +6 more
doaj   +1 more source

Crystal structures of (±)-(1SR,5SR,6SR,7SR,10SR,11SR,13RS,14SR)-13-hydroxy-7-methoxymethoxy-11,15,18,18-tetramethyl-3-oxo-2,4-dioxatetracyclo[12.3.1.01,5.06,11]octadec-15-en-10-yl benzoate, its 13-epimer and 13-one derivative

Acta Crystallographica Section E: Crystallographic Communications, 2015
The title compounds, C29H38O8·0.25C5H12, (A), C29H38O8, (B), and C29H36O8, (C), are tetracyclic benzoates possessing a taxane skeleton with a fused dioxolane ring as the core structure.
Takeshi Oishi, Keisuke Fukaya, Yu Yamaguchi, Tomoya Sugai, Ami Watanabe, Takaaki Sato, Noritaka Chida   +6 more
doaj   +1 more source

Predicting Atomic Charges in MOFs by Topological Charge Equilibration

Advanced Functional Materials, EarlyView.
An atomic charge prediction method is presented that is able to accurately reproduce ab‐initio‐derived reference charges for a large number of metal–organic frameworks. Based on a topological charge equilibration scheme, static charges that fulfill overall neutrality are quickly generated.
Babak Farhadi Jahromi, Sumukh Shankar Sharadaprasad, Rochus Schmid   +2 more
wiley   +1 more source

Sodium benzoate and potassium sorbate preservatives in food stuffs in Iran [PDF]

, 2015
A high-performance liquid chromatography method was applied for the determination of the levels of benzoate and sorbate in 400 food samples, including pickled cucumbers, canned tomato pastes, sour cherry jams, soft drinks, fruit juices and dairy products
Akbari Azam, M., Amirpour, M., Arman, A., Moradi-Khatoonabadi, Z., Yolmeh, A.   +4 more
core  

Unveiling Multidimensional Physicochemical Design Principles for Tissue Processing Hydrogels

Advanced Functional Materials, EarlyView.
This study establishes a materials‐based design framework for polymer hydrogels in tissue clearing, linking physicochemical properties to performance in tissue processing, labeling, and imaging. By analyzing rheology, swelling, porosity, antibody diffusion, mechanical performance, and thermochemical stability across platforms, this work provides a ...
Sangjae Kim, Siheon Lee, Jinsoo Na, James Sangmin Choo, Inho Kim, Junsang Doh, Jeong‐Yun Sun, Chang Yeol Lee, Juhyuk Park   +8 more
wiley   +1 more source

Sustainable Catalyst‐Free PLG Networks: Recyclability, Biodegradability, and Functional Performance

Advanced Functional Materials, EarlyView.
A catalyst‐additive free covalent adaptable network is developed from star‐shaped poly(lactide‐co‐glycolide) cross‐linked with pyromellitic dianhydride, enabling internal carboxylic acid‐driven transesterification. The resulting biodegradable network exhibits mechanical robustness (Young's modulus ≈1.6 GPa), complete recyclability, rapid biodegradation
Lars Schwarzer, Emilia Fulajtar, Seema Agarwal   +2 more
wiley   +1 more source