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Impact of kilobar pressures on ultrafast triazene and thiacyanine photodynamics
Very short fluorescence lifetimes evidence ultrafast deactivation of photoexcited molecules. To unveil the underlying mechanism for two compounds exhibiting (sub)picosecond emission dynamics, we combine femtosecond fluorescence upconversion with high-pressure liquid-phase spectroscopy. For the triaz...

Growth of nanodroplets on a still microfiber under flow conditions
Surface droplets in the microscale are of great interest for their relevance in broad droplet-based technologies. Derived from the Ouzo effect, the solvent exchange process is a simple bottom-up approach to produce surface nano-/micro-droplets by the nucleation and growth mechanism. The oil oversatu...

Preparation and reactivity of half-sandwich dioxygen complexes of ruthenium
Dioxygen complexes [Ru(η5-C5Me5)(η2-O2){P(OEt)3}2]BPh4 (1) and [Ru(η5-C5Me5)(η2-O2)(PPh3){P(OR)3}]BPh4 (2, 3) [R = Me (2), Et (3)] were prepared by allowing chloro-complexes RuCl(η5-C5Me5)[P(OEt)3]2 and RuCl(η5-C5Me5)(PPh3)[P(OR)3] to react with air (1 atm) in the presence of NaBPh4. Substitution of...

Structural and homotop optimization of neutral Al–Si nanoclusters
The geometry and stability of aluminum–silicon alloys up to 13 atoms are investigated using electronic structure methods. The results agree well with available experimental data, while also predicting new potential candidates for detection. The exploration of the potential energy hypersurface of suc...

Towards Mapping Electrostatic Interactions between Kdo2-Lipid A and Cationic Antimicrobial Peptides via Ultraviolet Photodissociation Mass Spectrometry
Cationic antimicrobial peptides (CAMPs) have known to act as multi-modal weapons against Gram-negative bacteria. As a new approach to investigate the nature of the interactions between CAMPs and the surfaces of bacteria, native mass spectrometry and two MS/MS strategies (ultraviolet photodissociatio...

A novel 3-hydroxychromone fluorescence probe for hydrogen sulfide based on an excited-state intramolecular proton transfer mechanism
Hydrogen sulfide (H2S) is a signaling gasotransmitter that plays important roles in modulating the functions of different systems. We have designed and synthesized a 3-hydroxychromone-based fluorescence probe A for H2S detection. Probe A is based on a H2S-induced thiolysis reaction as well as an exc...

Hydrogel electrodeposition based on bipolar electrochemistry
Bipolar electrochemistry has attracted great interest for applications based on sensing, electrografting, and electrodeposition, because the technique enables electrochemical reactions to be induced at multiple bipolar electrodes (BPEs) with only a single power supply. However, there are only a few ...

Glutathione-responsive homodithiacalix[4]arene-based nanoparticles for selective intracellular drug delivery
Glutathione-responsive, paclitaxel-loaded nanoparticles based on homodithiacalix[4]arene were successfully developed, exhibiting selective drug release in cancer cells....

A simple and versatile strategy for realizing bright multicolor mechanoluminescence
Multicolor mechanoluminescence(ML) is first realized by using the stable organic blue ML emitter N-henylcarbazole as host matrix. It is claimed that a good ML host should have a moderate melting point and can dissolve or disperse organic dyes but maintain high ML activity and crystallinity. This str...

Chemical separation and MC-ICPMS analysis of U, Th, Pa and Ra isotope ratios of carbonates
Diagenetic alteration of fossil reef corals may have severe effects on the reliability of 230Th/U-ages. The widely applied criteria introduced to test for the reliability of coral 230Th/U-ages are often not sufficient to identify all altered ages. The combination of 230Th/U- with 231Pa/U-dating has ...

Nitrogen enriched polytriazine as metal-free heterogeneous catalyst for the Knoevenagel reaction in mild condition
Nitrogen enriched (52 wt %) nanoporous polytriazine with high specific surface area up to 850 m2 g-1 is synthesized by an ultrafast (30 min reaction time) microwave assisted route using inexpensive precursors cyanuric chloride and melamine at 400 W. The metal-free highly electron rich material is us...

Drastic rearrangement of self-assembled hydrogen-bonded tapes in a molecular crystal
A 2 : 1 hydrogen-bonded crystal of 2-pyrrolidone and chloranilic acid shows structural phase transitions accompanied by the drastic rearrangement of hydrogen-bonded tapes. Such a phenomenon is attributed to the selective and directional character of hydrogen bonds....

Production of Dynamic Lipid Bilayers Using the Reversible Thiol-Thioester Exchange Reaction
Thiol lysolipids undergo thiol-thioester exchange with two phenyl thioester-functionalized tails to produce phospholipid structures that assemble into liposomes with differences in exchange rates, temperature sensitivity, permeability, and continued exchange behavior. This in situ formation reaction...

Synthesis of Poly(L-lactide)/[small beta]-cyclodextrin/citrate Networks Modified Hydroxyapatite and its Biomedical Properties
Hydroxyapatite (HA) was modified by chelation of citric acid and Ca on the surface of HA, followed by the cross-linking between the hydroxyl groups of β-cyclodextrin (β-CD) and citrate, and then further in situ ring-opening polymerization of L-lactide over the hydroxyl groups. The modification of HA...

Recent advances in the annulation of Morita–Baylis–Hillman adducts
In this review, we summarize some of the most recent advances in the construction of cyclic compounds from the annulation of Morita–Baylis–Hillman (MBH) adducts, which have demonstrated their importance by possessing diverse functional groups. Significant examples including [3 + 2], [3 + 3], [3 + 4]...


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