Gestational diabetes mellitus (GDM) is linked to a greater risk of various maternal and fetal complications, including the possibility of long-term metabolic issues in offspring. Our initial research suggests that the Traditional Chinese Medicine formula, Shenling Guchang prescription (SLGP), may have an impact on the gut microbiota. However, the specific mechanisms through which it affects intestinal barrier inflammation in GDM are still not fully understood.
View Article and Find Full Text PDFSpectrochim Acta A Mol Biomol Spectrosc
January 2025
The performance of organic solar cell (OSC) devices has been significantly enhanced by the dramatic evolution of A-D-A type non-fullerene acceptors (NFAs). Nevertheless, the structure-property-performance relationship of NFAs in the OSC device is unclear. Here, the intrinsic design factors of isomeric, fluorination and π-conjunction curtailing on the photophysical properties of benzodi (thienopyran) (BDTP) (named NBDTP-M, NBDTTP-M, NBDTP-F, and NBDTP-F)-based NFAs are discussed.
View Article and Find Full Text PDFA stable crystalline organic porous salt (CPOSs-NXU-1) with 1D apertures has been assembled by the solvothermal method, which shows high-sensitivity "turn-on" fluorescence detection and large-capacity adsorption of As(III) ions in water. The detection limits, saturated adsorption capacity, and removal rate of CPOSs-NXU-1 for As(III) ions in an aqueous solution can reach 74.34Â nm (5.
View Article and Find Full Text PDFSuccessful conversion of CO into C products requires the development of new catalysts that overcome the difficulties in efficient light harvesting and CO-CO coupling. Herein, density functional theory (DFT) is used to assess the photoreduction properties of nitrogen-doped black phosphorus. The geometric structure, redox potential, first step of hydrogenation activation, CO desorption, and CO-CO coupling are systematically calculated, based on which the diatomic nitrogen-doped black phosphorus (N@BP) stands out.
View Article and Find Full Text PDFThe study of aggregate formation and its controllable effect on luminescence behavior has a far-reaching influence in establishing a universal aggregation photophysical mechanism. In this paper, we obtained clusters with different extents of aggregation by heat-induced or light-triggered aggregation of a new polyurethane derivative (). The controllable regulation of multicolor fluorescence of a single (nondoped) polymeric material is realized.
View Article and Find Full Text PDFThe charge transfer mechanism of the g-CN/MoS heterojunction is still disputed. Some regard it as a type I pathway, some regard it as a type II pathway, and still some regard it as a Z-scheme pathway. Especially, the results obtained by density functional theory (DFT) calculations are not totally in agreement.
View Article and Find Full Text PDFA novel Cr-dimeric complex, [CrN(SiPr)(μ-Cl)(THF)] (), has been successfully constructed using a bulky silyl-amide ligand. Single-crystal structure analysis reveals that complex exhibits a binuclear motif, with a CrCl rhombus core, where two equivalent tetra-coordinate Cr centers in the centrosymmetric unit display quasi-square planar geometry. The crystal structure has been well simulated and explored by density functional theory calculations.
View Article and Find Full Text PDFNear-infrared (NIR) emitters are important probes for biomedical applications. Nanoparticles (NPs) incorporating mono- and tetranuclear iridium(iii) complexes attached to a porphyrin core have been synthesized. They possess deep-red absorbance, long-wavelength excitation (635 nm) and NIR emission (720 nm).
View Article and Find Full Text PDFHerein, we report a distinct Cr-Cr sextuple bond with an ultra-short length stabilized by equatorial alkali metals. Bonding analyses indicate that the two desired 4p-pi bonds failed to be formed but the bonding strength is enhanced due to the introduction of alkali metals, weakening the Cr-Cr 4s-4s effect. The Cr-Cr sextuple bond comprises five explicit 3d-3d overlaps and another delocalized σ bond.
View Article and Find Full Text PDFBeach plum (Prunus maritima) is an ornamental plant, famous for its strong salt and drought stress tolerance. However, the poor growth rate of transplanted seedlings has seriously restricted its application in salinized soil. This study investigated the effects of inoculation with arbuscular mycorrhizal fungus (AMF), Funneliformis mosseae, and phosphate-solubilizing fungus (PSF), Apophysomyces spartima, on the growth, nutrient (N, P, and K) uptake, and photosynthesis of beach plum under saline (170Â mM NaCl) and non-saline (0Â mM NaCl) conditions.
View Article and Find Full Text PDFWe report a new type of mechanically sensitive multicolor luminescent oligourethane gel (). The conformation of the oligomeric chains can be controlled by changing the strength of hydrogen bonds. The optical properties of the oligomers are highly dependent on the conformations which vary in response to mechanical stresses and phase transitions.
View Article and Find Full Text PDFComplexes containing odd-electron Be-Be bonds are still rare until now. Hereby, a series of neutral di-beryllium amidinate complexes containing a Be-Be bond were explored theoretically. The complexes with direct chelation with the Be dimer by the bidentate amidinate (AMD) ligands are always corresponding to their global minimum structures.
View Article and Find Full Text PDFDeveloping multifunctional photosensitizers (PSs) is needed to effectively simplify cancer treatment, but it remains a big challenge. Here, two red-emitting AIE-active, donor-acceptor (D-A) PSs with small Δ and their AIE nanoparticles, are rationally designed and synthesized. The NPs exhibit bright red-emission with high quantum yield, appropriate O generation ability and good biocompatibility.
View Article and Find Full Text PDFTwo Ni/Co-substituted sandwich-type germanomolybdates, {[M(NH-trz)(HO)][M(HO)(HGeMoO)]}·nHO (M = Ni (1) and Co (2), n = 10 (1) or 11 (2), NH-trz = 4-amino-1,2,4-triazole), have been obtained under hydrothermal conditions. 1 and 2 represent the first trivacant Keggin germanomolybdates involving unprecedented [α-GeMoO] fragments and {MO} quasi-cubane building units. Both of them exhibit electrocatalytic behaviours for HO reduction and photocatalytic properties for CO conversion.
View Article and Find Full Text PDFZn=Zn double bonded-especially double-π bonded-systems are scarce due to strong Coulomb repulsion caused by the Zn atom's internally crowded d electrons and very high energy of the virtual π orbitals in Zn fragments. It is also rare for Zn atoms to exhibit negative oxidation states within reported Zn-Zn bonded complexes. Herein, we report Zn=Zn double-π bonded octahedral clusters Zn M (M=Li, Na) bridged by four alkali metal ligands, in which the central Zn atom is in a negative oxidation state.
View Article and Find Full Text PDFChem Commun (Camb)
December 2019
On the basis of rational molecular design, the tricolour luminescence switching of an Ir(iii) complex is achieved for the first time. The transformation between two crystalline states and an amorphous state is responsible for the switching behaviour of this complex between blue, green and yellow states. Solvent molecules are shown to play a crucial role in the crystallization and luminescence processes.
View Article and Find Full Text PDFHerein, we presented a series of Be2X4Y2 clusters (X = Li, Na and Y = Li, Na, K) containing Be[triple bond, length as m-dash]Be triple bonds, which were constructed by six alkali metals as electron-donating ligands. By virtue of the electrostatic potential mapping of the precedent Be[double bond, length as m-dash]Be double-Ï€ bonded D4h-Be2X4 clusters, the Be2X4Y2trans-bent geometries and the Be[triple bond, length as m-dash]Be triple bonds inside were both well interpreted. More remarkably, we first identified a perfect classical Be[triple bond, length as m-dash]Be triple bond in D4h-Be2Na4K2 and its Wiberg bond index of Be-Be (WBIBe-Be) reached up to 2.
View Article and Find Full Text PDFThe singlet oxygen (O) generation ability of a photosensitizer (PS) is pivotal for photodynamic therapy (PDT). Transition metal complexes are effective PSs, owing to their high O generation ability. However, non-negligible cellular toxicity, poor biocompatibility, and easy aggregation in water limit their biomedical applications.
View Article and Find Full Text PDFThe symmetry-broken wave function can transform the Σ state of C from the classic double bonding to the quadruple bonding, where the transformed wave functions of ϕ and ϕ are singly occupied by two opposite-spinning electrons. In this article, the effective bond order (EBO) contribution of the fourth bond in C is assessed through the overlap integral between ϕ and ϕ , namely the value (0.60) is the EBO contribution of the fourth bond in the transformed scheme.
View Article and Find Full Text PDFPhys Chem Chem Phys
October 2018
Metal-metal double-π bonding in s-block metals has not been reported until now. The octahedral clusters of Be(μ-X) only possessing degenerate Be-Be double-π bonds were first achieved by an innovative concerted electron-donating strategy from the vertical plane of the Be-Be midpoint using four s-type electron-donating ligands. Moreover, this novel strategy is universal and independent of electronegativity.
View Article and Find Full Text PDFA series of new phosphorescent cyclometalated iridium(iii) complexes which possess aggregation-induced emission enhancement (AIEE) detect 2,4,6-trinitrophenol (TNP) selectively with high quenching constants in aqueous media. The sensing mechanism was systematically investigated by mass spectrometry, H and F NMR spectroscopy. X-ray crystal structure analysis reveals an O-HO interaction between TNP and the ancillary ligand which explains the high selectivity for TNP compared to other nitro-aromatics.
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