Results 81 to 90 of about 110,104 (297)

Conformational Landscapes in the Ground and Excited States Dictate Circularly Polarized Excimer Emission: A Thermodynamic–Kinetic Interplay in Carbazole Dimer Systems

Angewandte Chemie, EarlyView.
Covalently linked carbazole dimers exhibit intense excimer‐based circularly polarized luminescence (CPL). A simple propylene‐tethered dimer achieves glum ≈ 0.01 in the violet region—among the highest for small organic emitters without heavy atoms. Conformational mapping reveals CPL is governed by thermodynamic/kinetic control of emissive conformers ...
Tomohiro Kujime, Zhe Wang, Tadashi Mori
wiley   +2 more sources

Synthesis and Photocatalytic Performance of TiO2-CNT and Magnetized Fe3O4-TiO2-CNT Multifunctional Hybrids: A Pickering Emulsion Platform for Organic Degradation [PDF]

, 2018
The oil and textile industries produce billions of gallons of wastewater containing toxic, and sometimes carcinogenic or mutagenic, chemicals that often disperse throughout wastewater as suspended oil droplets.
Mason, Erica
core   +1 more source

Bidirectional Photoswitching of a Tailored Azobenzene with Red and Far‐Red Light Involving Triplet Sensitization in an Aqueous System

Advanced Science, EarlyView.
The action spectrum of a tailored azobenzene is shifted toward bio‐optical window through the chemical modification of its singlet and triplet energy levels. Consequently, the bidirectional photo‐switching of azobenzene in physiological conditions is achieved when excited by red and far‐red light, which offers greater tissue penetration.
Mila Miroshnichenko, Helen Hölzel, Edvinas Orentas, Karolis Kazlauskas, Pedro Ferreira, Fabienne Dumoulin, Carles Alcaide, Miquel Solà, Roger Bresolí‐Obach, Santi Nonell, Pankaj Bharmoria, Kasper Moth‐Poulsen   +11 more
wiley   +1 more source

Stimuli‐Responsive Silsesquioxane Nanozymes for Organocatalysis in Water and Prodrug Activation in Cells

Angewandte Chemie, EarlyView.
Amino‐bearing silsesquioxanes are water‐stable nanozymes that exhibit aggregation‐ and disaggregation‐dependent catalysis and can be applied to intracellular prodrug activation for cancer therapy. ABSTRACT Synthetic nanozymes have emerged as promising alternatives to natural enzymes for catalytic and therapeutic applications, yet their limited ...
Rabia Zahid, Ariadna Lázaro, Guillermo Moreno‐Alcántar, María Sancho‐Albero, Pierre Picchetti   +4 more
wiley   +2 more sources

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  

Mechanically Triggered DNA Nanovehicles for Targeted Dual‐Drug Cancer Therapy

Advanced Science, EarlyView.
A mechanically triggered DNA nanovehicle is introduced that co‐releases two anticancer drugs in response to integrin‐mediated cellular forces. Cholesterol‐anchored DNA assemblies undergo force‐induced unfolding at cell–cell junctions, enabling selective, localized dual‐drug activation in cancer cells while minimizing off‐target toxicity in low‐tension ...
Murali Mohana Rao Singuru, Priyanka Bhattacharyya, Mingxu You   +2 more
wiley   +1 more source

The autoignition of cyclopentane and cyclohexane in a shock tube

, 2007
Ignition delay times of cyclohexane-oxygen-argon and cyclopentane-oxygen-argon mixtures have been measured in a shock tube, the onset of ignition being detected by OH radical emission.
Battin-Leclerc, Frédérique, Buda, Frédéric, Fournet, René, Glaude, Pierre-Alexandre, Hakka, Hichem, Sirjean, Baptiste, Warth, Valérie   +6 more
core   +1 more source

A comparative analysis of the UV/Vis absorption spectra of nitrobenzaldehydes. [PDF]

, 2011
In a joint experimental and theoretical study, the UV/Vis absorption spectra of the three isomers (ortho, meta, para) of nitrobenzaldehyde (NBA) were analyzed. Absorption spectra are reported for NBA vapors, cyclohexane and acetonitrile solutions.
Ahlrichs, Aw, Becke, Becke, Bickelhaupt, Christiansen, Coppens, Coppens, Corral, Fernández, Finley, Fonseca Guerra, Galloway, Heinz, Inés Corral, Karlström, King, Konopacka, Kovács, Laimgruber, Laimgruber, Lee, Leticia González, Leyva, Leyva, Malmqvist, Morokuma, Pelliccioli, Perdew, Peter Gilch, Pinchas, Roos, Schmierer, Sengwa, Snijders, te Velde, Thomas Schmierer, Verónica Leyva, Widmark, Ziegler   +39 more
core   +1 more source

Antenna Effect in Halogen‐Containing ZnSm Coordination Compounds: Utilizing Colorimetry for a Room‐Temperature Tunable Ratiometric Molecular Thermometer

Advanced Science, EarlyView.
The ZnSm‐Cl dinuclear molecular complex was synthesized through a simple one‐pot method. ZnL and Sm3+ exhibit complementary temperature‐dependent emission As the temperature increases, a noticeable color difference of ZnSm‐Cl can be observed within the room temperature range of 253‐333 K.
Ye Xia, Yingshan Xue, Feng Pan, Ai Wang, Hong Huang, Zhenxing Li, Bing‐Wu Wang, Song Gao   +7 more
wiley   +1 more source

6-Deoxyhexoses froml-Rhamnose in the Search for Inducers of the Rhamnose Operon: Synergy of Chemistry and Biotechnology [PDF]

, 2016
In the search for alternative non‐metabolizable inducers in the l ‐rhamnose promoter system, the synthesis of fifteen 6‐deoxyhexoses from l ‐rhamnose demonstrates the value of synergy between biotechnology and chemistry.
Estévez, Amalia, Estévez, Ramón J., Fleet, George W. J., Heap, John T., Izumori, Ken, Jenkinson, Sarah F., Kato, Atsushi, Kelly, Ciarán, Liu, Zilei, Marqvorsen, Mikkel H. S., Otero, José M., Wormald, Mark R., Yoshihara, Akihide   +12 more
core   +3 more sources