Results 31 to 40 of about 921 (148)

Lichtgesteuerte Konstruktion und Zerstörung: Schaltung zwischen zwei unterschiedlich zusammengesetzten käfigartigen Komplexen [PDF]

, 2022
Wir berichten über zwei regioisomere Diazocinliganden1 und 2, die beide mit violettem und grünem Lichtzwischenden E- undZ Konfigurationen geschaltet werden können. Die Selbstorganisationder vier Spezies(1-Z,1-E,2-Z,2-E) mit CoII-Ionen wurde nach Änderung
Herges, Rainer, Hugenbusch, Daniel, Lehr, Marc, McConnell, Anna J., von Glasenapp, Jan‐Simon   +4 more
core   +1 more source

Photoschaltbare Peptide als molekulare Werkzeuge zur Kodierung von Strukturordnung und ‐Unordnung in intrazellulären Aggregaten

Angewandte Chemie, Volume 138, Issue 3, 16 January 2026.
Wir präsentieren ein photoschaltbares Peptid‐Konjugat, das eine isomerabhängige Selbstassemblierung aufweist: Das planare trans‐Isomer bildet geordnete Nanofibrillen, während das nicht‐planare cis‐Isomer ungeordnete Aggregate ausbildet.
Julian Link, Luca Burg, Sarah Chagri, Ha‐Chi Nguyen, David Y.W. Ng, Bart Jan Ravoo, Tanja Weil   +6 more
wiley   +1 more source

A Platform for the Development of Highly Red‐Shifted Azobenzene‐Based Optical Tools

Angewandte Chemie, Volume 137, Issue 32, August 4, 2025.
Our platform is built on a combination of chemical synthesis, NMR, UV–vis, and quantum chemical studies. The dfdc azobenzene scaffold provides efficient photoswitching with red light and the ability to fine‐tune relaxation times. A TD‐DFT‐based workflow allows the in silico design of photoswitches with properties tailored to desired applications.
Kyra Lützel, Henryk Laqua, Manjima B. Sathian, Benedikt Nißl, Judit Katalin Szántó, Christina‐Anna Senser, Gökcen Savasci, Lars Allmendinger, Bilal Kicin, Vincent Ruf, Dominik Kammerer, Theobald Lohmüller, Konstantin Karaghiosoff, Ahmed M. Ali, Ursula Storch, Michael Mederos y Schnitzler, Christian Ochsenfeld, David B. Konrad   +17 more
wiley   +2 more sources

Photoswitchable Peptides as Molecular Tools to Encode Structural Order and Disorder in Intracellular Assemblies

Angewandte Chemie International Edition, Volume 65, Issue 3, 16 January 2026.
We present a photoswitchable peptide conjugate which exhibits isomerism‐dependent self‐assembly: the planar trans‐isomer assembles into well‐ordered nanofibers while the non‐planar cis‐isomer yields disordered aggregates. Our study offers a direct visualization on the effects of structure formation inside living cells.
Julian Link, Luca Burg, Sarah Chagri, Ha‐Chi Nguyen, David Y.W. Ng, Bart Jan Ravoo, Tanja Weil   +6 more
wiley   +1 more source

Long-range photoinduced charge separation in tröger bases D/A dyads [PDF]

, 2019
Tröger´s base (and its derivatives) are compounds comprised of two aromatic (or polyaromatic) rings bridged by a diazocine aliphatic cycle. We report herein the photophysical properties of two series of novel Tröger´s bases (TB) asymmetrically ...
Chesta, Carlos Alberto, Dusso, Diego, Lanza Castronuovo, Priscila Ailin, Montejano, Hernan Alfredo, Moyano, Elizabeth Laura, Parise, Alejandro Ruben, Ramírez, Cristina L., Vera, Domingo Mariano Adolfo   +7 more
core   +1 more source

Synthetic Photoswitchable Neurotransmitters Based on Bridged Azobenzenes [PDF]

, 2019
Photoswitchable neurotransmitters of ionotropic kainate receptors were synthesized by tethering a glutamate moiety to disubstituted C2-bridged azobenzenes, which were prepared through a novel methodology that allows access to diazocines with higher ...
Alibés, Ramon, Busqué, Félix, Cabré, Gisela, Egea, David, Garrido Charles, Aida, González Lafont, Àngels, Gorostiza Langa, Pablo Ignacio, Herges, Rainer, Hernando, Jordi, Langbehn, Daniel, Lluch, José M., Moormann, Widukind   +11 more
core   +3 more sources

Photopharmacology beyond azobenzene photoswitches

Responsive Materials, Volume 3, Issue 4, November 2025.
Photopharmacology is advancing beyond traditional azobenzene photoswitches by developing new photoresponsive molecules with improved thermal stability, efficiency, and long‐wavelength activation, enhancing their potential for precise biomedical applications.
Huichao Guo, Jinghong Dai, Long Deng, Zhiwei Zhang, He Tian, Junji Zhang   +5 more
wiley   +1 more source

Harnessing Negative Photochromism in Styryl Cyanines for Light‐Modulated Proton Transport

Angewandte Chemie, Volume 137, Issue 28, July 7, 2025.
We show how photo switchable styryl cyanines undergo an extremely efficient photochemical ring‐closing reaction upon irradiation. Furthermore, substituents on the ring and the nature of their surroundings can be used to tune their chemistry, kinetics, and photochemical properties. Finally, we demonstrate how these molecules can be used as smart dopants
Gianni Pacella, Maria Nabatova, Yuxuan Zhang, David Picconi, Roza R. Weber, Shirin Faraji, Giuseppe Portale   +6 more
wiley   +2 more sources

In-vitro antioxidant activities of the fruits peel of citrus macroptera Mont. Var. Annamensis [PDF]

, 2015
In-vitro antioxidant activities of the fruit peels of Citrus macroptera were studied in the present work. Ferric reducing antioxidant power (FRAP) and 2,2-diphenyl-1-picrylhydrazyl (DPPH) radical scavenging assays were performed to evaluate the ...
Basar, Norazah, Md. Othman, Siti Nur Atiqah, Sarker, Satyajit D.   +2 more
core  

Racemic 1,2,3,4,7,8,9,10-octa­fluoro-6H,12H-5,11-methano­dibenzo[b,f][1,5]diazo­cine: an octa­fluorinated analogue of Tröger’s base [PDF]

, 2008
The title compound, C15H6F8N2, possesses a non-crystal­lographic twofold axis. The dihedral angle between the two benzene rings is 98.4 (2)°.
Artacho, Christophe M. L. Vande Velde, Delphine Didier, Dolensky, Faroughi, Farrugia, Farrugia, Frank Blockhuys, Macrae, Prelog, Sergey Sergeyev, Sergeyev, Sheldrick, Spek, Spielman, Tröger, Valík, Wilcox, Zabrodsky   +18 more
core   +3 more sources