Mg-Doped Cu Catalyst for Electroreduction of CO to Multicarbon Products: Lewis Acid Sites Simultaneously Promote *CO Adsorption and Water Dissociation.

The electroreduction of CO to valuable fuels or high-value chemicals by using sustainable electric energy provides a promising strategy for solving environmental problems dominated by the greenhouse effect. Copper-based materials are the only catalysts that can convert CO into multicarbon products, but they are plagued by high potential, low selectivity, and poor stability. The key factors to optimize the conversion of CO into multicarbon products are to improve the adsorption capacity of intermediates on the catalyst surface, accelerate the hydrogenation step, and improve the C-C coupling efficiency.

Enhancing local K adsorption by high-density cube corners for efficient electroreduction of CO to C products.

Reducing carbon dioxide (CO) to high value-added chemicals using renewable electricity is a promising approach to reducing CO levels in the air and mitigating the greenhouse effect, which depends on high-efficiency electrocatalysts. Copper-based catalysts can be used for electroreduction of CO to produce C products with high added value, but suffer from poor stability and low selectivity. Herein, we propose a strategy to enhance the field effect by varying the cubic corner density on the surface of CuO microspheres for improving the electrocatalytic performance of CO reduction to C products.

Activation of mitochondrial DNA-mediated cGAS-STING pathway contributes to chronic postsurgical pain by inducing type I interferons and A1 reactive astrocytes in the spinal cord.

Chronic postsurgical pain (CPSP) is increasingly recognized as a public health issue. Recent studies indicated the innate immune pathway of cyclic guanosine monophosphate-adenosine monophosphate synthase (cGAS)-stimulator of interferon genes (STING) was involved in pain regulation. However, the detailed mechanisms remain unclear.

Regulating the kinetics of zinc-ion migration in spinel ZnMnO through iron doping boosted aqueous zinc-ion storage performance.

Spinel ZnMnO with a three-dimensional channel structure is one of the important cathode materials for aqueous zinc ions batteries (AZIBs). However, like other manganese-based materials, spinel ZnMnO also has problems such as poor conductivity, slow reaction kinetics and structural instability under long cycles. Herein, ZnMnO mesoporous hollow microspheres with metal ion doping were prepared by a simple spray pyrolysis method and applied to the cathode of aqueous zinc ion battery.

InBi Bimetallic Sites for Efficient Electrochemical Reduction of CO to HCOOH.

Formic acid is receiving intensive attention as being one of the most progressive chemical fuels for the electrochemical reduction of carbon dioxide. However, the majority of catalysts suffer from low current density and Faraday efficiency. To this end, an efficient catalyst of In/Bi-750 with InO nanodots load is prepared on a two-dimensional nanoflake Bi O CO substrate, which increases the adsorption of CO due to the synergistic interaction between the bimetals and the exposure of sufficient active sites.

Sciatic Nerve Block Combined with Flurbiprofen Inhibits Spinal Cord Inflammation and Improves Postoperative Pain in Rats with Plantar Incision.

Background And Purpose: Peripheral nerve block is often used to relieve postoperative pain. But the effect of nerve block on inflammatory response is not fully understood. Spinal cord is the primary center of pain processing.

Synergistic Acid Hydrogen Evolution of Neighboring Pt Single Atoms and Clusters: Understanding Their Superior Activity and Mechanism.

The hydrogen evolution reaction (HER) involves two-step elementary reactions, providing an opportunity to establish dual-site synergistic catalysts. This work demonstrates carbon-supported Pt single atoms and clusters (Pt-NPC) as an efficient catalyst for acidic HER, which exhibits an ultralow Tafel slope of 12.5 mV/dec and an overpotential of 24 mV at 10 mA/cm with an ultralow platinum content of 3.

Metal-Organic Framework-Derived BiIn Bimetallic Oxide Nanoparticles Embedded in Carbon Networks for Efficient Electrochemical Reduction of CO to Formate.

Bismuth-based catalysts exhibit excellent activity and selectivity for the electroreduction of carbon dioxide (CO). However, single-component bismuth-based catalysts are not satisfactory for the electrochemical reduction of CO to formic acid, mainly due to their high hydrogen production, low electrical conductivity, and small catalytic current density. Herein, we used a coordination strategy to recombine Bi and In at the molecular level to form Bi/In bimetallic metal-organic frameworks (MOFs), which were then calcined to obtain MOF-derived Bi/In bimetallic oxide nanoparticles embedded in carbon networks.

Crystal structure of bis-{2-[bis-(2-hy-droxy-eth-yl)amino]-ethanol-κ(3) O,N,O'}zinc terephthalate.

In the title salt, [Zn(C6H15NO3)2](C8H4O4), the Zn(II) cation, located on a centre of inversion, is coordinated by four O atoms and two N atoms from two tridentate 2-[bis-(2-hy-droxy-eth-yl)amino]-ethanol (BHEA) ligands, giving rise to a slightly distorted octa-hedral geometry. The terephthalate dianion, located about a centre of inversion, is not coordinated to Zn(II) but is connected through O-H⋯O contacts with [Zn(BHEA)2](2+) cations, leading to a three-dimensional crystal structure.

Crystal structure of bis-{μ-4,4'-[1,3-phenyl-enebis(-oxy)]dibenzoato-κ(4) O,O':O'',O'''}bis[(1,10-phenanthroline-κ(2) N,N')zinc(II)] dihydrate.

Two 4,4'-[1,3-phenyl-enebis(-oxy)]dibenzoate anions bridge two 1,10-phenanthroline-chelated Zn(II) cations about a center of inversion to generate the dinuclear title compound, [Zn2(C20H12O6)2(C12H8N2)2]·2H2O. The geometry about the Zn(II) atom is a distorted octa-hedron. In the crystal, the mol-ecules are connected by classical O-H⋯O hydrogen bonds, weak C-H⋯O hydrogen bonds and C-H⋯π inter-actions, forming a three dimensional network.

Association between pelvic organ prolapse and stress urinary incontinence with collagen.

The aim of the present study was to investigate the ultrastructure and content of collagen in uterosacral ligaments and paraurethral tissues in patients with pelvic organ prolapse (POP) and stress urinary incontinence (SUI), analyzing the association between POP and collagen dysfunction. The study comprised three groups: Control, POP and POP with SUI (n=30 per group). Histological characteristics of collagen fiber were observed and the diameters were measured using light and electron microscopy to determine the Type I and Type III collagen content of the main ligament in the urethral specimens.

Poly[hexa-aqua-(μ9-cyclo-hexane-1,2,3,4,5,6-hexa-carboxyl-ato)trimanganese(II)].

The asymmetric unit of the title compound, [Mn3(C12H6O12)(H2O)6] n , comprises one Mn(II) ion, one third of a cyclo-hexane-1,2,3,4,5,6-hexa-carboxyl-ate anion and two aqua ligands. The anion is completed by application of a -3 axis. The Mn(II) ion is six-coordinated by six O atoms from two aqua ligands and three different cyclo-hexa-carboxyl-ate anions in an octa-hedral geometry.

2',6'-Bis(4-carb-oxy-phen-yl)-4,4'-bipyridin-1-ium nitrate 0.25-hydrate.

In the title compound, C(24)H(17)N(2)O(4) (+)·NO(3) (-)·0.25H(2)O, the central pyridine ring of the 2',6'-bis-(4-carb-oxy-phen-yl)-4,4'-bipyridin-1-ium cation is almost coplanar with one benzene ring [dihedral angle = 1.03 (5)°], while it makes dihedral angles of 9.

catena-Poly[[zinc-bis-(μ-2-sulfido-1H-benzimidazol-3-ium-5-carboxyl-ato)-κO:S;κS:O] trihydrate].

In the title compound, {[Zn(C(8)H(5)N(2)O(2)S)(2)]·3H(2)O}(n), the Zn(II) atom, lying on a twofold rotation axis, is four-coordinated by two S atoms and two O atoms from four 2-sulfido-1H-benzimidazol-3-ium-5-carboxyl-ate (H(2)mbidc) ligands in a distorted tetra-hedral geometry. Two H(2)mbidc ligands bridge two Zn(II) atoms, generating a double-chain along [[Formula: see text]01]. Adjacent chains are linked by N-H⋯O and O-H⋯O hydrogen bonds, forming a three-dimensional supra-molecular network.

3-(Pyridin-4-ylmeth-oxy)phenol.

In the title compound, C(12)H(11)NO(2), the phenolic ring is inclined at an angle of 32.70 (1)° with respect to the pyridine ring. In the crystal, inter-molecular O-H⋯N hydrogen bonds link the mol-ecules into C(11) chains along [001].

Poly[diaqua-bis-[μ-1-hy-droxy-2-(imidazol-3-ium-1-yl)ethane-1,1-diyldiphospho-nato]tricopper(II)].

In the title coordination polymer, [Cu(3)(C(5)H(7)N(2)O(7)P(2))(2)(H(2)O)(2)](n), one Cu(II) atom is five-coordinated by five O atoms from three 1-hy-droxy-2-(imidazol-3-ium-1-yl)ethane-1,1-diyldiphospho-nate (L) ligands in a distorted square-pyramidal geometry. The other Cu(II) atom, lying on an inversion center, is six-coordinated in a distorted octa-hedral geometry by four O atoms from two L ligands and two O atoms from two water mol-ecules. The five-coordinated Cu(II) atoms are linked by phospho-nate O atoms of the L ligands, forming a polymeric chain.

catena-Poly[[[aqua-(pyridine-4-carboxyl-ato-κN)silver(I)]-μ-hexa-methyl-ene-tetra-amine-κN:N'] dihydrate].

In the title compound, {[Ag(C(6)H(4)NO(2))(C(6)H(12)N(4))(H(2)O)]·2H(2)O}(n), the Ag(I) atom shows a distorted triangular pyramidal geometry,, formed by two N atoms from two hexa-methyl-ene-tetra-amine (hmt) ligands and one N atom from a pyridine-4-carboxyl-ate (4-pdc) ligand and one water mol-ecule. The hmt ligands bridge the Ag atoms, forming a chain along [001]. The carboxyl-ate group of the 4-pdc ligand is uncoordinated.

A novel parallel interpenetrating two-dimensional (4,4) network: poly[[mu2-1,4-bis(imidazol-1-ylmethyl)benzene](mu2-naphthalene-1,4-dicarboxylato)zinc(II)].

In the title coordination compound, [Zn(C(12)H(6)O(4))(C(14)H(14)N(4))](n), the two Zn(II) centers exhibit different coordination environments. One Zn(II) center is four-coordinated in a distorted tetrahedral environment surrounded by two carboxylate O atoms from two different naphthalene-1,4-dicarboxylate (1,4-ndc) anions and two N atoms from two distinct 1,4-bis(imidazol-1-ylmethyl)benzene (1,4-bix) ligands. The coordination of the second Zn(II) center comprises two N atoms from two different 1,4-bix ligands and three carboxylate O atoms from two different 1,4-ndc ligands in a highly distorted square-pyramidal environment.

catena-Poly[[[aqua-(1,10-phenanthro-line)zinc(II)]-μ-3,3'-(p-phenyl-ene)di-acrylato] hemihydrate].

In the title compound, {[Zn(C(12)H(8)O(4))(C(12)H(8)N(2))(H(2)O)]·0.5H(2)O}(n), each Zn(II) atom is six-coordinated by two N atoms from one 1,10-phenanthroline (phen), three carboxyl-ate O atoms from two different L ligands [H(2)L = 3,3'-(p-phenyl-ene)diacrylic acid] and one water mol-ecule in a distorted octa-hedral environment. The two L dianions are situated across inversion centres and bridge neighbouring Zn(II) centres, yielding a chain propagating parallel to [100].

catena-Poly[[[aqua-(pyrazino[2,3-f][1,10]phenanthroline)cadium(II)]-μ-4,4'-ethyl-enedibenzoato] N,N-dimethyl-formamide hemisolvate].

In the title compound, [Cd(C(16)H(10)O(4))(C(14)H(8)N(4))(H(2)O)]·0.5C(3)H(7)NO, the Cd(II) atom is six-coordinated by two N atoms from one pyrazino[2,3-f][1,10]phenanthroline ligand, three carboxyl-ate O atoms from two different 4,4'-ethyl-enedibenzoate ligands, and one water mol-ecule in a distorted octa-hedral environment. The two 4,4'-ethyl-enedibenzoate dianions are located on inversion centres bridging two neighboring Cd(II) centres.