Results 101 to 110 of about 140,146 (333)

Atropselective syntheses of (-) and (+) rugulotrosin A utilizing point-to-axial chirality transfer [PDF]

, 2015
Chiral, dimeric natural products containing complex structures and interesting biological properties have inspired chemists and biologists for decades.
A Zask, Anne C. Meister, B Franck, BB Liau, BH Lipshutz, CA Broka, CE Müller, CF Nising, DA Evans, F Guo, G Bringmann, G Bringmann, G Xu, GA Molander, GP Moss, H Kikuchi, H Kikuchi, J Clayden, JM Wilson, John A. Porco, K-S Masters, KC Nicolaou, LC Konkol, LF Tietze, LF Tietze, LF Tietze, M Stewart, MC Kozlowski, NC Bruno, NZ Burns, PS Steyn, R Martin, Richard P. Johnson, Robert J. Capon, RS Coleman, S Huang, S Little, S Masamune, Sarah L. Skraba-Joiner, SR LaPlante, T Gensch, T Hamada, T Qin, T Qin, T Wezeman, TE Barder, Tian Qin, VB Birman, W Tang, X Shen, Y Zhou, Y Zhou, YS Park, Zeinab G. Khalil   +53 more
core   +2 more sources

Thermo‐Responsive Tri‐State Photonic Crystals

Advanced Science, EarlyView.
Tri‐state photonic crystals combine thermochromic structural color, fluorescence, and afterglow via far‐field absorption tuning, bypassing the efficiency‐lifetime trade‐off of TS‐FRET. This enables dynamic, high‐capacity anti‐counterfeiting with tunable optical states.
Yuewei Zheng, Jinqing Chen, Wanqi Mo, Wei Hong   +3 more
wiley   +1 more source

Tratamiento de miasis oral con Ivermectina notificación de tres casos causados por Cochliomyia Hominivorax (COQUEREL)

Revista Facultad de Odontología Universidad de Antioquia, 1998
Myiasis is the infestation of the body tissues of man and animals by the larvae of Diptera (Two winged flies). It has been observed in differents areas of humans, but is uncommon in the oral cavity.
Francisco Levi Duque-Serna , Rafael Valderrama-Hernández , Jorge Alonso González-Robledo   +2 more
doaj  

Host-selected mutations converging on a global regulator drive an adaptive leap towards symbiosis in bacteria [PDF]

, 2017
Host immune and physical barriers protect against pathogens but also impede the establishment of essential symbiotic partnerships. To reveal mechanisms by which beneficial organisms adapt to circumvent host defenses, we experimentally evolved ...
Cooper, Vaughn S., Coyle, Matthew, Donner, Rachel A., Foxall, Randi L., Pankey, Molly Sabrina, Perry, Lauren A., Schuster, Brian M., Ster, Ian M., Whistler, Cheryl A.   +8 more
core   +3 more sources

Interfacial Roughness‐Reinforced Magnetic Nanosheet Colloidal Gels for Stable Embolization and Magnetothermal Therapy of Hepatic Tumor

Advanced Science, EarlyView.
A rough‐interface reinforcement strategy is implemented to construct nanosheet‐mica‐based magnetic colloidal hydrogels with enhanced mechanical robustness and injectability. These hydrogels achieve stable vascular embolization and effective magnetothermal performance, offering synergistic therapeutic benefits in hepatic tumor treatment.
Xingyu Liu, Sheng Chen, Yonghong Song, Bing Chen, Xu Yan, Rui Qiu, Jinlong Hu, Baoqiang Cao, Hanye Xing, Tao Zhou, Liang Dong, Yang Lu   +11 more
wiley   +1 more source

Crystal structure of 5-O-benzoyl-2,3-O-isopropylidene-d-ribono-1,4-lactone

Acta Crystallographica Section E: Crystallographic Communications, 2017
In the title compound, C15H16O6, obtained from the acylation reaction between 2,3-O-isopropylidene-d-ribono-1,4-lactone and benzoyl chloride, the known absolute configuration for the lactone moiety of the ester substituent has been confirmed.
Adailton J. Bortoluzzi, Gustavo P. Silveira, Marcus M. Sá   +2 more
doaj   +1 more source

The phenazine pyocyanin is a terminal signalling factor in the quorum sensing network of Pseudomonas aeruginosa [PDF]

, 2006
Certain members of the fluorescent pseudomonads produce and secrete phenazines. These heterocyclic, redox-active compounds are toxic to competing organisms, and the cause of these antibiotic effects has been the focus of intense research efforts.
Dietrich, Lars E. P., Newman, Dianne K., Petersen, Ashley, Price-Whelan, Alexa, Whiteley, Marvin   +4 more
core   +1 more source

CO2‐DBU‐Triggered Photoredox‐Catalyzed Direct α‐C‐H Alkylation of Alcohols

Advanced Science, EarlyView.
An efficient photoinduced and metal‐free method is developed for direct α‐C–H monoalkylation of alcohols utilizing the CO2‐DBU system as the hydrogen bond acceptor (HBA) in the presence of H2O, allowing for selective functionalization of alcohols with a broad substrate scope.
Zeyu Zhang, Zongchang Han, Yuhao Shang, Han‐Shi Hu, Jun Li, Chanjuan Xi   +5 more
wiley   +1 more source

Efficient Red Light–Driven Singlet Oxygen Photocatalysis with an Osmium‐Based Coulombic Dyad

Angewandte Chemie, EarlyView.
Red light‐absorbing bichromophores with straightforward preparation and superior photocatalytic activity were developed. Spectroscopic studies provided deep insights into the intra‐ion‐pair energy transfer key step and the novel approach. Abstract Photoactive osmium complexes are widely used sensitizers for the generation of singlet oxygen because they
Matthias Schmitz, Robert Naumann, Katja Heinze, Christoph Kerzig   +3 more
wiley   +2 more sources

Stereodivergent, Diels-Alder-initiated organocascades employing α,β-unsaturated acylammonium salts: scope, mechanism, and application. [PDF]

, 2017
Chiral α,β-unsaturated acylammonium salts are novel dienophiles enabling enantioselective Diels-Alder-lactonization (DAL) organocascades leading to cis- and trans-fused, bicyclic γ- and δ-lactones from readily prepared dienes, commodity acid chlorides ...
Abbasov, Mikail E, Hudson, Brandi M, Romo, Daniel, Tantillo, Dean J   +3 more
core   +2 more sources