Synthesis of a Novel Zwitterionic Hypercrosslinked Polymer for Highly Efficient Iodine Capture from Water.

Cationic porous organic polymers have a unique advantage in removing radioactive iodine from the aqueous phase because iodine molecules exist mainly in the form of iodine-containing anions. However, halogen anions will inevitably be released into water during the ion-exchange process. Herein, we reported a novel and easy-to-construct zwitterionic hypercrosslinked polymer (7AIn-PiP)-containing cationic pyridinium-type group, uncharged pyridine-type group, pyrrole-type group, and even an electron-rich phenyl group, which in synergy effectively removed 94.

Structural and Photodynamic Studies on Nitrosylruthenium-Complexed Serum Albumin as a Delivery System for Controlled Nitric Oxide Release.

How to deliver nitric oxide (NO) to a physiological target and control its release quantitatively is a key issue for biomedical applications. Here, a water-soluble nitrosylruthenium complex, [(CH)N][RuCl(5cqn)(NO)] (H5cqn = 5-chloro-8-quinoline), was synthesized, and its structure was confirmed with H NMR and X-ray crystal diffraction. Photoinduced NO release was investigated with time-resolved Fourier transform infrared and electron paramagnetic resonance (EPR) spectroscopies.

Synthesis, Biomacromolecular Interactions, Photodynamic NO Releasing and Cellular Imaging of Two [RuCl(qn)(Lbpy)(NO)]X Complexes.

Two light-activated NO donors [RuCl(qn)(Lbpy)(NO)]X with 8-hydroxyquinoline (qn) and 2,2'-bipyridine derivatives (Lbpy) as co-ligands were synthesized (Lbpy = 4,4'-dicarboxyl-2,2'-dipyridine, X = Cl and Lbpy = 4,4'-dimethoxycarbonyl-2,2'-dipyridine, X = NO), and characterized using ultraviolet-visible (UV-vis) spectroscopy, Fourier transform infrared (FT-IR) spectroscopy, nuclear magnetic resonance (H NMR), elemental analysis and electrospray ionization mass spectrometry (ESI-MS) spectra. The [RuCl(qn)(Lbpy)(NO)]NO complex was crystallized and exhibited distorted octahedral geometry, in which the Ru-N(O) bond length was 1.752(6) Å and the Ru-N-O angle was 177.

Structure, photodynamic reaction and DNA photocleavage properties of a nitrosyl iron-sulfur cluster (MeN)[FeS(NO)]: A DFT calculation and experimental study.

Density functional theory calculations were performed on the structure of the nitrosyl iron-sulfur cluster (MeN)[FeS(NO)]. The IR spectra were assigned and the electronic ground-state properties in different solvents were analyzed. Dynamic conversion of [FeS(NO)] was analyzed quantitatively using the time-resolved IR spectra in different solvents.

The first synthesis of Bi self-doped BiMoO-BiMoO composites and their excellent photocatalytic performance for selective oxidation of aromatic alkanes under visible light irradiation.

We report the synthesis of Bi self-doped BiMoO-BiMoO composites with heterostructures by a one-step method using BiMoO as precursor. Among them, BiMoO-BiMoO shows excellent selectivity as well as recyclability in the oxidation of aromatic alkanes to aldehydes under visible light irradiation.

Non-Covalent Fluorescent Labeling of Hairpin DNA Probe Coupled with Hybridization Chain Reaction for Sensitive DNA Detection.

An enzyme-free signal amplification-based assay for DNA detection was developed using fluorescent hairpin DNA probes coupled with hybridization chain reaction (HCR). The hairpin DNAs were designed to contain abasic sites in the stem moiety. Non-covalent labeling of the hairpin DNAs was achieved when a fluorescent ligand was bound to the abasic sites through hydrogen bonding with the orphan cytosine present on the complementary strand, accompanied by quench of ligand fluorescence.