Results 281 to 290 of about 227,350 (349)

Imaging Heterogeneous Patterns of Aminopeptidase N Activity in Hierarchical Tissue Structures Through High‐Resolution Whole‐Organ 3D Mapping

open access: yesAngewandte Chemie, EarlyView.
Enzymes regulate physiological functions, and their abnormal activity is associated with diseases. Here, we present a method for high‐resolution 3D mapping of enzyme activity using tissue clearing and an activity‐based covalent probe. Focusing on aminopeptidase N, we developed ANA‐o‐BODIPY, which records enzyme activity via covalent labeling.
Bo Yi   +10 more
wiley   +1 more source

Access to N‐Monofluoromethylated (Thio)Carbamates, Formamides, Alkynamides, and Related Derivatives

open access: yesAngewandte Chemie, EarlyView.
The first general synthetic access to N‐CH₂F and N‐CHRF carbamates, thiocarbamates, formamides, alkynamides, and related compounds is disclosed. The method involves the direct synthesis of carbamoyl fluoride building blocks from readily available amines, followed by their derivatization. Abstract This work presents the first general synthetic access to
Filip G. Zivkovic   +3 more
wiley   +1 more source

Preparation of Thermally and Photochemically Immobilized N‐type Conjugated Polymer Films via Quantitative Backbone Editing

open access: yesAngewandte Chemie, EarlyView.
A postpolymerization modification (PPM) of n‐type conjugated polymers by nucleophilic aromatic substitution is reported, enabling precise tuning of solubility, ordering, and stability. The method allows the facile introduction of azide groups, which can undergo UV‐ or thermally induced crosslinking, to afford stable, insoluble films with retained ...
Charlotte Rapley   +8 more
wiley   +1 more source

Fast and Autonomous Mannosylated Nanomotors for Dynamic Cancer Cell Targeting

open access: yesAngewandte Chemie, EarlyView.
An enzyme‐loaded nanomotor decorated with mannose polymers shows a synergistic effect with respect to cell targeting. The mannose units interact with mannose receptors (MRs) on the cell surface, whereas the presence of the glycopolymer on the motor surface also leads to a more effective motile behavior in cell medium. Abstract An attractive strategy in
Yuechi Liu   +12 more
wiley   +1 more source

Structural Basis for the Catalytic Mechanism of ATP‐Dependent Diazotase CmaA6

open access: yesAngewandte Chemie, EarlyView.
Several diazotases have been reported in recent years, but the detailed catalytic mechanism is unclear. From X‐ray crystallography and Cryo‐EM analysis, we obtained the structure of a diazotase CmaA6, which synthesizes 3‐diazocoumaric acid. Kinetic analysis and computational analysis indicated that CmaA6 catalyzes diazotization via an unprecedented ...
Seiji Kawai   +5 more
wiley   +1 more source

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