Results 171 to 180 of about 36,459 (348)
Aggregate, EarlyView.Crystals of chiral AIEgens exhibit achiral solvent‐induced CPL sign inversion with good optical waveguide properties, while the same helical structure and molecular chirality are retained in the crystalline state. Nonbonding interactions between the cocrystallized solvent molecules and AIEgens affect the θμ,m (S1 → S0) of electric and magnetic ...
Xiaofei Niu +13 more
wiley +1 more source
Natural Products and BioprospectingFifteen novel carbazole alkaloids, euchrestifolines A–O (1–15), were obtained from Murraya euchrestifolia. Their structures were elucidated by spectroscopic analysis, Mosher’s ester, calculated ECD, and transition metal complex ECD methods.
Yue-Mei Chen +8 more
doaj +1 more source
Phototherapy via Modulation of β‐Amyloid in Combating Alzheimer's Disease
Aggregate, EarlyView.This review introduces the light‐regulated Aβ aggregation, highlighting four applications: photodynamic therapy (PDT), photothermal therapy (PTT), photopharmacology, and photobiomodulation (PBM) systems. It also summarizes the current issues and proposes the prospects of photo‐induced modulation of Aβ aggregation and clearance as a therapeutic strategy
Yunhua Zhang +4 more
wiley +1 more source
Angewandte Chemie, EarlyView.A small molecule ligand undergoes traceless, reversible photocrosslinking to PreQ1 RNA aptamer in a selective manner, dependent on both the RNA sequence/structure and ligand chemical structure. A caged mRNA construct incorporating the PreQ1 aptamer and an eGFP or p53 coding sequence remained translationally repressed until exposure to 302 nm light ...
Shaifaly Parmar +5 more
wiley +2 more sources
Impact of Host–Emitter Interactions on Light Amplification in Laser Dyes
Aggregate, EarlyView.A new organic semiconductor laser material, QSBCz, based on stilbene tetramer, is presented. Compared to high‐performance laser material with stilbene dimer, BSBCz, increased conjugation contributes to enhancing radiative rate constant and gain cross‐section.
Masashi Mamada +7 more
wiley +1 more source
Peripheral Engineering of Multiple‐Resonance Framework Targeting Efficient Organic Lasers
Angewandte Chemie, EarlyView.Rational peripheral engineering of multiple‐resonance cores is shown to be critical for modulating molecular interactions, excited‐state dynamics, and lasing performance. Extending π–conjugation by introducing phenyl groups induces severe aggregation and broadens the excited‐state absorption (ESA), whereas unconjugated tert‐butyl groups suppress ...
Tuul Tsagaantsooj +6 more
wiley +2 more sources
Aggregate, EarlyView.A goal‐oriented MOF design strategy is proposed to realize the ultra‐sensitive and specific detection of sarin/DCP through the rotation restricted emission mechanism. The hydrogen bonding and hydrophobic interaction between the CTTB ligand and DCP efficiently lead to a dramatic change in molecular configuration, significantly enhancing the fluorescence
Cong Lyu +6 more
wiley +1 more source
Angewandte Chemie, EarlyView.A monomeric alumylene stabilized by two donor ligands (phosphine and NHC) has been successfully synthesized. This alumylene complex exhibits an enhanced nucleophilic character and a preserved ambiphilic reactivity compared to the monoligated complex. As a consequence, its oxidation by N2O proceeds even at −90 °C, allowing the synthesis of an acceptor ...
José Miguel León Baeza +8 more
wiley +2 more sources
Angewandte Chemie, EarlyView.We present the first general synthetic strategy for accessing N(CF3)(CF2H) amines, which display a 2000‐fold increase in stability over N‐CF3 amines. The compounds are synthesized through a desulfurization–fluorination of N‐CF3 thioformamides. Abstract With poor metabolic stability being a major cause of failure in drug development, there is a pressing
Gina Wycich +3 more
wiley +2 more sources