Results 131 to 140 of about 23,086 (291)

Synthesis and characterization of novel porphyrin Schiff bases

, 2008
Novel porphyrin Schiff bases were synthesized by a simple Schiff base condensation in refluxing toluene between 5-(4-aminophenyl)-10,15,20-triphenylporphyrin (ATTP) 3 and styryl aldehydes 4–6 or p-halobenzaldehydes 7–9.
YUKUN LI, LEI WANG, YAQING FENG, JINQIANG XUE   +3 more
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Therapeutic Applications of Stimuli‐Based Release and Engineering of Extracellular Vesicles

Advanced NanoBiomed Research, EarlyView.
This review summarizes the effects of endogenous and exogenous stimuli, their effects on the natural release of extracellular vesicles, as well as their uptake and release. It also gives an overview of stimuli‐responsive EVs and their therapeutic applications. Extracellular vesicles (EVs), nano‐ to microsized lipid bilayer membrane‐bound particles, are
Gloria Kemunto, Kristen Dellinger
wiley   +1 more source

Steuerung der Rotation eines Guanidiniumkations durch Kation‐π‐Wechselwirkungen

Angewandte Chemie, EarlyView.
Ein Lanthanid‐π‐Container wurde für die Bindung eines Guanidiniumkations in dessen aromatischer Kavität mittels Kation‐π‐Wechselwirkungen verwendet. Röntgenkristallographie und Festkörper‐NMR‐Spektroskopie bei schneller Rotation um den magischen Winkel wurden verwendet, um die zugrundeliegenden Wirt‐Gast‐Interaktionen zu untersuchen.
Hannah Busch, Lennart Günzel, Ettore Bartalucci, Robert Schuster, Christian Zocher, Martin Börner, Chandan K. Das, Florian Taube, Björn Corzilius, Maria Fyta, Matthias Ernst, Berthold Kersting, Thomas Wiegand   +12 more
wiley   +1 more source

Sterisch überfrachtete Alken‐Photo‐Redox‐Schalter auf Basis von Chinolinium/Carben Bausteinen

Angewandte Chemie, EarlyView.
Eine modulare Synthese einer neuen Klasse von Photo‐ und Redox‐Schaltern wird beschrieben, die auf der Kombination von Chinoliniumsalzen und Carbenen basiert. Das photochemische Schalten ermöglicht einen selektiven Wechsel zwischen gefalteten E/Z‐Isomeren, während das elektrochemische Schalten den Wechsel zwischen neutralen, radikalkationischen und ...
Chris Burdenski, Patrick W. Antoni, Marcel E. Baumert, Leonie Ziemann, Samaresh C. Sau, Julian J. Holstein, Maria Castro, Nitin Kumar, Ofer Filiba, Igor Schapiro, Max M. Hansmann   +10 more
wiley   +1 more source

Controlling the Guanidinium Cation Rotation by Cation–π Interactions

Angewandte Chemie International Edition, EarlyView.
A lanthanide π‐container has been employed to trap a guanidinium cation inside the aromatic cavity by cation–π interactions. X‐ray crystallography and solid‐state nuclear magnetic resonance (NMR) spectroscopy at fast magic‐angle spinning (MAS) frequencies have been utilized to probe the underlying host–guest interactions.
Hannah Busch, Lennart Günzel, Ettore Bartalucci, Robert Schuster, Christian Zocher, Martin Börner, Chandan K. Das, Florian Taube, Björn Corzilius, Maria Fyta, Matthias Ernst, Berthold Kersting, Thomas Wiegand   +12 more
wiley   +1 more source

Crosslinking of Linear Polyimines Into Aminal‐Linked Porous Organic Polymers for C2 Hydrocarbon/Methane Separation

Angewandte Chemie International Edition, EarlyView.
Crosslinking of linear polyimines with aromatic diamines via nucleophilic addition converts nonporous polyimine precursors into aminal‐linked porous networks, offering a new strategy for synthesizing porous organic polymers. The resulting materials exhibit high C2 hydrocarbon adsorption capacity, excellent selectivity over CH4, and durable cyclic ...
Xuejie Li, Yayu Yan, Qiaohong Li, Michelle Åhlén, Chao Xu   +4 more
wiley   +1 more source

Overcrowded Alkene Photo‐Redox‐Switches Based on Quinolinium/Carbene Building Blocks

Angewandte Chemie International Edition, EarlyView.
A modular synthesis of a new class of photo‐ and redox‐switches is described based on the combination of quinolinium salts and carbenes. Photochemical switching allows to selectively switch between folded E/Z isomers, while electrochemical switching allows to change between neutral, radical cation and dicationic oxidation states, which are all isolable
Chris Burdenski, Patrick W. Antoni, Marcel E. Baumert, Leonie Ziemann, Samaresh C. Sau, Julian J. Holstein, Maria Castro, Nitin Kumar, Ofer Filiba, Igor Schapiro, Max M. Hansmann   +10 more
wiley   +1 more source

Antimicrobial activities of some schiff bases

, 2006
ANTIMICROBIAL ACTIVITIES OF SOME SCHIFF BASESAysun AYDINLI ESENAnkara UniversityGraduate School of Natural and Applied ScienceDepartment of BiologySupervisor: Prof.Dr.
Esen, Aysun Aydınlı
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Does salinity make a difference—Kidney anatomy of Saimaa (Pusa saimensis) and Baltic ringed seals (Pusa hispida botnica)

The Anatomical Record, EarlyView.
Abstract As habitat salinity markedly differs between the endangered, freshwater‐dwelling Saimaa ringed seal (Pusa saimensis Nordquist, 1899) and the brackish water‐inhabiting Baltic ringed seal (Pusa hispida botnica Gmelin, 1788), we investigated whether this difference has resulted in morphological changes to their kidneys.
Heini Nihtilä, Juha Laakkonen
wiley   +1 more source

Characterization of the extracellular matrix from human and dog umbilical cords

The Anatomical Record, EarlyView.
Abstract The extracellular matrix is important for maintaining tissue morphogenesis and homeostasis; it can also be used as a biomaterial for the production of biological scaffolds. Particularly, the umbilical cord has shown potential in the production of scaffolds for small‐diameter vessels.
Ana Carla Mendonça, Roberta Losi Guembarovski, Carlos Alberto Miqueloto, Alda Fiorina Maria Losi Guembarovski, Caio Garcia Barbosa da Silva, Laís Capelasso Lucas Pinheiro, Phelipe Oliveira Favaron   +6 more
wiley   +1 more source