Promotes Follicle Growth Through the PI3K/AKT Signaling Pathway In Vivo and In Vitro in Rat.

The development status of follicles determines the menstrual cycle and estrogen levels, which is crucial to women's health. is a natural product for both medicine and food, which has "estrogenic effect". However, few studies have systematically elaborated its mechanism of action.

Robust nanoparticles growth in the interior of porous sponges for efficient dye adsorption and emulsion separation.

Emulsified oils and dye contaminants already pose a huge threat to global ecosystems and human health. It is a significant research topic to develop efficient, rapid, versatile methods for emulsion separation and dye adsorption. The membrane material modified with common methods only modified the outer surface of the membrane, while the interior is hardly fully decorated.

A cucurbit[8]uril based supramolecular assembly and its potential applications for the removal of dye and antibiotic from an aqueous medium.

CB[8]-based supramolecular assembly, , 2CB[8]·[ZnCl]·4HO (1) (CB[8] = cucurbit[8]uril), was synthesized under solvothermal condition in the presence of [ZnCl] anions as a structure inducer. 1 was applied as a high-efficiency absorbent to remove the commonly used dye amaranth (AMR) and an antibacterial drug of broad-spectrum sulfadiazine sodium (SFZ) from the aqueous solution. It showed an excellent removal rate and could remove 96.

Porous organic framework membranes based on interface-induced polymerisation: design, synthesis and applications.

Porous organic frameworks (POFs) are novel porous materials that have attracted much attention due to their extraordinary properties, such as high specific surface area, tunable pore size, high stability and ease of functionalisation. However, conventional synthesised POFs are mostly large-sized particles or insoluble powders, which are difficult to recycle and have low mass transfer efficiencies, limiting the development of their cutting-edge applications. Therefore, processing POF materials into membrane structures is of great significance.

Molecular structures of 1-hydroxyethane-1,1-diphosphonic acid for removing calcium sulfate scale under different pH conditions.

As an important descaling agent, 1-hydroxyethane-1,1-diphosphonic acid (HEDP) is capable of dissolving calcium sulfate scale when the pH of HEDP solution is adjusted from acidic to weakly alkaline. The molecular structures of Ca-HEDP complexes were determined to understand the impact of pH on the dissolution of calcium sulfate scale. The structures of the complexes revealed that the two phosphonic acid groups and the hydroxyl group of HEDP each provide one O atom to coordinate with the Ca ion to form a stable three-coordinate configuration under alkaline conditions.

Preparation of graphitized carbon by the corn straw liquefaction method.

Corn straw-based graphitized carbon was prepared by carbonization and a catalyzed graphitization method using corn straw as the raw material and catalytic liquefaction technology. A mixture of polyethylene glycol (PEG200) compounded with glycerol in the mass ratio of 7 : 3 was used as the liquefied agent, meanwhile 0.3 g of hydroxydiethylidene glycolic acid acted as the liquefied catalyst.

Photo-enhanced growth of lead halide perovskite crystals and their electro-optical properties.

Organic-inorganic hybrid perovskites have attracted much attention for opto-electronic applications due to their low trap density, strong light absorption, and superior charge transport performance. Generally, the high efficiency of perovskite electro-optical thin films depends on their high-quality perovskite single crystals. In this work, the external illumination is applied on the perovskite single crystals growing in solution.

Improved hydrogen evolution performance by engineering bimetallic AuPd loaded on amino and nitrogen functionalized mesoporous hollow carbon spheres.

A highly efficient heterogeneous catalyst was synthesized by delicate engineering of NH-functionalized and N-doped hollow mesoporous carbon spheres (NH-N-HMCS), which was used for supporting AuPd alloy nanoparticles with ultrafine size and good dispersion (denoted as AuPd/NH-N-HMCS). Without using any additives, the prepared AuPd/NH-N-HMCS catalytic formic acid dehydrogenation possesses superior catalytic activity with an initial turnover frequency value of 7747 mol H per mol catalyst per h at 298 K. The excellent performance of AuPd/NH-N-HMCS derives from the unique hollow mesoporous structure, the small particle sizes and high dispersion of AuPd nanoparticles and the modified Pd electronic structure in the AuPd/NH-N-HMCS composite, as well as the synergistic effect of the modified support.

Copolymerization of 1,3-butadiene with phenyl/phenethyl substituted 1,3-butadienes: a direct strategy to access pendant phenyl functionalized polydienes.

Copolymerization of 1,3-butadiene with various types of phenyl substituted 1,3-butadiene derivatives, including ()-1-phenyl-1,3-butadiene (PBD), 1-phenethyl-1,3-butadiene (PEBD), 1-(4-methoxylphenyl)-1,3-butadiene (-MEPBD), 1-(2-methoxylphenyl)-1,3-butadiene (-MEPBD) and 1-(4-,-dimethylaminophenyl)-1,3-butadiene (-DMPBD), by using a coordination polymerization system of CpTiCl/MAO is reported herein. Comonomers PBD and PEBD can be copolymerized with 1,3-butadiene in a large range of comonomer feed ratios (0-44.6% for PBD, 0-30.

High coercivity PrFeB magnetic nanoparticles by a mechanochemical method.

NdFeB nanoparticles are widely used because of their outstanding hard magnetic properties. In fact, PrFeB has higher magneto-crystalline anisotropy than NdFeB, which makes Pr-Fe-B a promising magnetic material. However, the chemical synthesis route to PrFeB nanoparticles is challenging because of the higher reduction potential of Pr, as well as the complex annealing conditions.

A one-pot synthesis of AgBr/AgPO composite photocatalysts.

In this study, an AgBr/AgPO (ABAP) photocatalyst has been prepared a facile one-pot anion-exchange method. SEM, XRD, XPS and UV-Vis DRS characterization techniques are carried out to study the structural and physicochemical characteristics of the AgBr/AgPO composites. The ABAP photocatalyst exhibited outstanding photocatalytic capability for the photodegradation of rhodamine B (RhB) under visible light irradiation.

Enantioselective difunctionalization of alkenes by a palladium-catalyzed Heck/borylation sequence.

A palladium catalyzed enantioselective Heck/borylation reaction of alkene-tethered aryl iodides was realized, delivering a variety of 2,3-dihydrobenzofuranyl boronic esters in high yield with excellent enantioselectivity. Asymmetric synthesis of chromane boronic ester, indane boronic ester and indoline boronic ester was also accomplished. The protocol offers an efficient access to the corresponding chiral benzocyclic boronic esters, which are notably important chemical motifs in synthetic transformations.

Copper-catalyzed [3 + 1] cyclization of cyclopropenes/diazo compounds and bromodifluoroacetamides: facile synthesis of α,α-difluoro-β-lactam derivatives.

We have developed a novel copper-catalyzed cyclization of cyclopropenes/diazo compounds and bromodifluoroacetamides, efficiently synthesizing a series of α,α-difluoro-β-lactams in moderate to excellent yields under mild reaction conditions. This reaction represents the first example of [3 + 1] cyclization for the synthesis of β-lactams utilizing a metal carbene intermediate as the C1 synthon.

Palladium/Xu-Phos-catalyzed asymmetric carboamination towards isoxazolidines and pyrrolidines.

An efficient palladium-catalyzed enantioselective carboamination reaction of -Boc--homoallyl-hydroxylamines and -Boc-pent-4-enylamines with aryl or alkenyl bromides was developed, delivering various substituted isoxazolidines and pyrrolidines in good yields with up to 97% ee. The reaction features mild conditions, general substrate scope and scalability. The obtained products can be transformed into chiral 1,3-aminoalcohol derivatives without erosion of chirality.

Correction: In-chain functionalized syndiotactic 1,2-polybutadiene by a Ziegler-Natta iron(iii) catalytic system.

[This corrects the article DOI: 10.1039/C9RA06499K.].

Correction: Exploring the antifouling effect of elastic deformation by DEM-CFD coupling simulation.

[This corrects the article DOI: 10.1039/C9RA06761B.].

Fabrication of microcapsule-type composites with the capability of underwater self-healing and damage visualization.

Inspired by biology, underwater self-healing polymer composites with damage-healing visible agents were successfully designed and prepared. The healing agents, same as epoxy resin matrices, were encapsulated and embedded into a matrix that contained fluorescent latent curing agents. The results of investigation on healing properties revealed that the fluorescent latent curing agents and the microcapsules in the matrix play two roles.

Synthetic scheme to improve the solid content of biodegradable waterborne polyurethane by changing the association relationships of hydrophilic fragments.

A synthetic method was developed to prepare biodegradable waterborne polyurethanes (BHPUs) with a high solid content by introducing different molecular weights of poly(ethylene glycol) (PEG) into poly(ε-caprolactone) (PCL)-based polyurethanes. PCL is a semi-crystalline polymer that can be degraded in lipase to prepare biodegradable waterborne polyurethanes. The biodegradability of BHPUs was evaluated, and the results showed that BHPU samples could be degraded in a solution of phosphate-buffered saline (PBS)/lipase but not in PBS.

Theoretical perspective on the electronic structure and photophysical properties for a series of mixed-carbene tris-cyclometalated iridium(iii) complexes.

The electronic structure and photophysical properties of four mixed-carbene tris-cyclometalated iridium(iii) complexes have been theoretically investigated by the density functional theory (DFT) and time-dependent density functional theory (TDDFT) methods. The effect of varying the main ligand by introducing different ring structures on the photophysical properties of the studied complexes has been explored. All studied complexes have slightly distorted octahedral geometries.

Size-Independent Transmembrane Transporting of Single Tetrahedral DNA Nanostructures.

DNA nanostructures have attracted considerable attention as drug delivery carriers. However, the transmembrane kinetics of DNA nanostructures remains less explored. Herein, the dynamic process of transporting single tetrahedral DNA nanostructures (TDNs) is monitored in real time using a force-tracing technique based on atomic force microscopy.

A photo-assisted rechargeable battery: synergy, compatibility, and stability of a TiO/dye/CuS bifunctional composite electrode.

Herein, we present a simple and novel approach to fabricate a bifunctional compatible electrode, which has functionalities of photoelectric conversion and energy storage. The integrated photo-assisted rechargeable battery of the two-electrode system demonstrates potential reduction and impressive performance enhancement with the assistance of illumination. Such a structure of a bifunctional compatible electrode provides more possibilities to develop more practical photo rechargeable battery.

Exploring the antifouling effect of elastic deformation by DEM-CFD coupling simulation.

The influence of elastic deformation and elastic modulus on the release of adhered bacteria was investigated in this paper. Four silicone elastomers (SE) with different elastic moduli and one rigid polystyrene sheet were prepared to verify the antifouling effect of elastic deformation. The SE film has an elastic deformation effect under the stimulus of fluid medium, which makes the surface unstable.

The synergetic effect of a structure-engineered mesoporous SiO-ZnO composite for doxycycline adsorption.

The design and synthesis of an efficient adsorbent for antibiotics-based pollutants is challenging due to the unique physicochemical properties of antibiotics. The development of a mesoporous SiO-ZnO composite is a novel way to achieve excellent adsorption efficiency for doxycycline hydrochloride (DOX) in aqueous solutions due to the engineered highly open mesoporous structure and the ZnO-modified framework. Unlike the traditional method of obtaining mesoporous composites by post-synthesis techniques, the novel one-step method developed in this study is both effective and environment-friendly.

In-chain functionalized syndiotactic 1,2-polybutadiene by a Ziegler-Natta iron(iii) catalytic system.

Copolymerization of 1,3-butadiene with four 1-substituted 1,3-diene comonomers bearing amino and alkyoxy groups by a Ziegler-Natta iron(iii) catalytic system to access in-chain functionalized syndiotactic 1,2-polybutadiene is reported herein. The polar comonomer content can be easily regulated by varying the comonomer loadings or polymerization conditions, affording functionalized syndiotactic 1,2-polybutadiene with different amounts of functionalities. The incorporation of a polar comonomer showed little influence on the 1,2-content and stereoregularity of the resulting polymers, giving a 1,2-structure as high as ∼85% and an pentad of 81.