Results 201 to 210 of about 344,103 (291)

In‐situ‐Konstruktion von Imidazopyridinium‐Fluoreszenzlabels für Biokonjugationen

open access: yesAngewandte Chemie, EarlyView.
Durch Chromophor‐Engineering von Isochinolinaldehyden entstehen TICT‐basierte fluorogene Farbstoffe für die In Situ Markierung unterschiedlicher (Bio‐)Moleküle mit großen Stokes‐Verschiebungen, die mit der Zellbildgebung kompatibel sind. ZUSAMMENFASSUNG Einfache, effiziente Transformationen fluorogenen Charakters, die unter biokompatiblen Bedingungen ...
Dongchen Du   +7 more
wiley   +1 more source

Porous Phenazine‐bridged Tetraoxa[8]Circulenes for Selective Gold Recovery and Heterogeneous Catalysis

open access: yesAngewandte Chemie, EarlyView.
Gold recycling from electronic waste using porous materials is an emerging concept to reduce the environmental impact of gold mining. In this work, we report the synthesis of a highly porous phenazine‐derived tetraoxa[8]circulene polymer and its utilization in gold capture and heterogeneous catalysis.
Patrick W. Fritz   +4 more
wiley   +1 more source

Decoding Carbon Dot Purity by Nuclear Magnetic Resonance

open access: yesAngewandte Chemie, EarlyView.
NMR spectroscopy tracks the removal of molecular and oligomeric impurities in carbon dots, enabling a (semi)quantitative evaluation of their purity through integrated peak analysis. ABSTRACT Carbon dots (CDs) have attracted increasing attention in recent years and have been widely explored in many fields.
Yalei Hu, Alberto Bianco
wiley   +1 more source

Intermolecular Electrophilic Germylation Using GeCl4 and Al2Cl6

open access: yesAngewandte Chemie, EarlyView.
While electrophilic aromatic substitution is well‐established for carbon and silicon‐based electrophiles, it is extremely underdeveloped for germanium. Herein we report the first effective intermolecular Germa–Friedel–Crafts reaction. The process can be modified to enable selective synthesis of the mono‐ or the di‐aryl germane derivatives, ArGeCl3 and ...
Justyna Łosiewicz   +4 more
wiley   +1 more source

Self‐Limiting Polymerization‐Induced Crystallization‐Driven Self‐Assembly (SL‐PI‐CDSA) Enables Templated Synthesis of Chiral Plasmonic, Hybrid 2D Hexagonal Assemblies

open access: yesAngewandte Chemie, EarlyView.
This work details the rapid generation (t ≤ 5 min) of size‐tunable, ultralow dispersity (Ð ≤ 1.01) 2D hexagonal nanosheets by self‐limiting polymerization‐induced crystallization‐driven self‐assembly (SL‐PI‐CDSA) of modular and templating poly(aryl isocyanide) block copolymers, with functions that permit post‐polymerization modifications. Specifically,
Randall A. Scanga   +13 more
wiley   +1 more source

Discovery of potent bisindole-based pyrazolopyridine derivatives as topoisomerase inhibitors: DNA damage induction and synergistic antileukemic activity. [PDF]

open access: yesFront Pharmacol
Eldehna WM   +11 more
europepmc   +1 more source

Thermally Controlled Chiral Supramolecular Polymorphism in Water

open access: yesAngewandte Chemie International Edition, EarlyView.
Using an amphiphilic oligo(phenyleneethynylene) derivative, we establish LCST‐coupled chirality as a strategy to regulate thermoresponsive supramolecular polymorphism in water. At room temperature, AggI forms discrete assemblies that transform into elongated helical fibers (AggII) near the LCST and subsequently to sheet‐like structures (AggIII) at ...
Zulema Fernández   +6 more
wiley   +1 more source

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