Benzotrithiophene-Based Covalent Organic Frameworks with Rhenium Modified for Artificial Photosynthetic CO Reduction.

Although covalent organic framework (COF)-based photocatalysts for CO reduction reaction has been widely reported, there are still some problems such as poor visible-light absorption and low activity to realize the overall reaction of CO reduction by the artificial photosynthesis strategy. Herein, anchoring the Re carbonyl complex Re(CO)Cl in a benzotrithiophene-based COF has been synthesized for artificial photosynthetic CO reduction. The photocatalytic results demonstrate that BTT-bpy-COF-Re exhibits the highest CORR activity, achieving a rate of 110.

Dual Metallosalen-Based Covalent Organic Frameworks for Artificial Photosynthetic Diluted CO Reduction.

Directly converting CO in flue gas using artificial photosynthetic technology represents a promising green approach for CO resource utilization. However, it remains a great challenge to achieve efficient reduction of CO from flue gas due to the decreased activity of photocatalysts in diluted CO atmosphere. Herein, we designed and synthesized a series of dual metallosalen-based covalent organic frameworks (MM-Salen-COFs, M: Zn, Ni, Cu) for artificial photosynthetic diluted CO reduction and confirmed their advantage in comparison to that of single metal M-Salen-COFs.

Carrier confinement activated explicit solvent dynamic of CdS/BiVO/HO and optimized photocatalytic hydrogen evolution performances.

Herein, using an electrophoretic deposition strategy, a S-scheme CdS (cubic)/BiVO (monoclinic) heterostructured photocatalyst is fabricated. The as-synthesized photocatalysts exhibit high carrier separation efficiency, prominent hydrogen evolution ability and high stability. The results of the detailed density functional theory (DFT) prove that the photogenerated electrons and holes are located in BiVO and CdS components, respectively.

Understanding Photocatalytic Overall Water Splitting of β-Ketoamine COFs through the N-C Site Synergistic Mechanism.

Overcoming the sluggish reaction kinetics of the oxygen evolution reaction (OER) is a determining factor for the practical application of photocatalysts for overall water splitting. Two-dimensional covalent organic frameworks (2D-COFs) offer an ideal platform for catalyst design in the field of overall water splitting for their exceptional chemical tunability and high efficiency of light capture. In this work, four β-ketoamine 2D-COFs, consisting of 1,3,5-triformylphloroglucinol (Tp) groups and different linkers with pyridine segments, were constructed and optimized.

Electrochemical Synthesis and Electrocatalytic Oxygen-Evolution Performance of Two-Dimensional NiCo-BPDC Materials.

Metal-organic frameworks (MOFs) have been widely studied as electrocatalysts, and the research strategy to improve their electrocatalytic oxygen evolution reaction (OER) performance is to modify their structure. In this paper, two-dimensional bimetallic MOFs were constructed to improve electrocatalytic OER performance. Using a mild electrochemical method with Ni and Co as metal sources and 4, 4 '-biphenyl dicarboxylic acid (HBPDC) as ligand, two-dimensional NiCo-BPDC was synthesized and then deposited on a carbon cloth electrode.

Integrating Enrichment, Reduction, and Oxidation Sites in One System for Artificial Photosynthetic Diluted CO Reduction.

Artificial photosynthetic diluted CO reduction directly driven by natural sunlight is a challenging, but promising way to realize carbon-resources recycling utilization. Herein, a three-in-one photocatalytic system of CO enrichment, CO reduction and H O oxidation sites is designed for diluted CO reduction. A Zn-Salen-based covalent organic framework (Zn-S-COF) with oxidation and reductive sites is synthesized; then, ionic liquids (ILs) are loaded into the pores.

A new amide from the fruiting bodies of Tricholoma bakamatsutake.

A new amide tricholomine C was isolated from the dried fruiting bodies of Tricholoma bakamatsutake. Its structure was identified by a combination of nuclear magnetic resonance spectroscopic analysis and electronic circular dichroism (ECD) calculations. The ethyl alcohol crude extract and tricholomines A-C from T.

Engineering β-ketoamine covalent organic frameworks for photocatalytic overall water splitting.

Covalent organic frameworks (COFs) are an emerging type of crystalline and porous photocatalysts for hydrogen evolution, however, the overall water splitting activity of COFs is rarely known. In this work, we firstly realized overall water splitting activity of β-ketoamine COFs by systematically engineering N-sites, architecture, and morphology. By in situ incorporating sub-nanometer platinum (Pt) nanoparticles co-catalyst into the pores of COFs nanosheets, both Pt@TpBpy-NS and Pt@TpBpy-2-NS show visible-light-driven overall water splitting activity, with the optimal H and O evolution activities of 9.

Transcriptional profiles of TGF-β superfamily members in the lumbar DRGs and the effects of activins A and C on inflammatory pain in rats.

Signaling by the transforming growth factor (TGF)-β superfamily is necessary for proper neural development and is involved in pain processing under both physiological and pathological conditions. Sensory neurons that reside in the dorsal root ganglia (DRGs) initially begin to perceive noxious signaling from their innervating peripheral target tissues and further convey pain signaling to the central nervous system. However, the transcriptional profile of the TGF-β superfamily members in DRGs during chronic inflammatory pain remains elusive.

Constructing tightly integrated conductive metal-organic framework/covalent triazine framework heterostructure by coordination bonds for photocatalytic hydrogen evolution.

The construction of tightly integrated heterostructures with metal-organic frameworks (MOFs) and covalent organic frameworks (COFs) has been confirmed to be an effective way for improved hydrogen evolution. However, the reported tightly integrated MOF/COF hybrids were usually limited to the covalent connection of COFs with aldehyde groups and NH-MOF via Schiff base reaction, restricting the development of MOF/COF hybrids. Herein, a covalent triazine framework (CTF-1), a subtype of crystalline COFs, was integrated with a conductive two-dimensional (2D) MOF (Ni-CAT-1) by a novel coordinating connection mode for significantly enhanced visible-light-driven hydrogen evolution.

Transcriptional Profiling of TGF-β Superfamily Members in Lumbar DRGs of Rats Following Sciatic Nerve Axotomy and Activin C Inhibits Neuropathic Pain.

Background: Neuroinflammation and cytokines play critical roles in neuropathic pain and axon degeneration/regeneration. Cytokines of transforming growth factor-β superfamily have implications in pain and injured nerve repair processing. However, the transcriptional profiles of the transforming growth factor-β superfamily members in dorsal root ganglia under neuropathic pain and axon degeneration/regeneration conditions remain elusive.

Ethnobiological notes and volatile profiles of two rare Chinese desert truffles.

The production of a distinct profile of volatile organic compounds plays a crucial role in the ecology of hypogeous Ascomycetes, and is also key to their gastronomic relevance. In this study, we explored the aroma components of two rarely investigated Chinese desert truffles, namely and , using headspace solid-phase microextraction (HS-SPME) coupled with gas chromatography-mass spectrometry (GC-MS). Our investigation revealed the significant presence of sulphur-containing volatiles in the aroma of but not in .

Photo-induced synthesis of ternary Pt/rGO/COF photocatalyst with Pt nanoparticles precisely anchored on rGO for efficient visible-light-driven H evolution.

Covalent organic frameworks (COFs) have been recognized as a new type of promising visible-light-driven photocatalysts for H evolution, while it still is a key point to facilitate the separation and transfer of photoinduced charges for further enhancing their activities. In this work, we fabricated a new type of ternary Pt/rGO/COF photocatalysts with Pt cocatalyst precisely anchored on rGO serving as electron collector for largely enhanced H evolution. A series of ternary hybrid materials were obtained via one-pot photoreduction of Pt and GO under visible-light irradiation in a solution the same as photocatalytic H evolution reaction and simultaneous self-assembling of rGO/COF heterostructure.

Deletion of MyD88 adaptor in nociceptor alleviates low-dose formalin-induced acute pain and persistent pain in mice.

The myeloid differentiation factor 88 (MyD88) adaptor mediates signaling by Toll-like receptors and some interleukins (ILs) in neural and non-neuronal cells. Recently, MyD88 protein was found to express in primary sensory neurons and be involved in the maintenance of persistent pain induced by complete Freund's adjuvant, chronic constriction injury and chemotherapy treatment in rodents. However, whether MyD88 in nociceptive neurons contributes to persistent pain induced by intraplantar injection of formalin remains elusive.

Cytokine activin C ameliorates chronic neuropathic pain in peripheral nerve injury rodents by modulating the TRPV1 channel.

Background And Purpose: The cytokine activin C is mainly expressed in small-diameter dorsal root ganglion (DRG) neurons and suppresses inflammatory pain. However, the effects of activin C in neuropathic pain remain elusive.

Experimental Approach: Male rats and wild-type and TRPV1 knockout mice with peripheral nerve injury - sciatic nerve axotomy and spinal nerve ligation in rats; chronic constriction injury (CCI) in mice - provided models of chronic neuropathic pain.

Development of MOF-based heterostructures for photocatalytic hydrogen evolution.

The construction of metal-organic framework (MOF) based heterostructures are a promising strategy to improve the photocatalytic hydrogen evolution activities of MOFs. For the intrinsic porosity, inorganic-organic hybrid nature and structural tunability of MOFs, a wide variety of MOF-based heterostructured photocatalysts with improved hydrogen evolution activities have been fabricated. In this frontier article, we present the latest advances in MOF-based heterostructures for photocatalytic hydrogen evolution.

Continuous and Rapid Synthesis of UiO-67 by Electrochemical Methods for the Electrochemical Detection of Hydroquinone.

Continuous and rapid synthesis of UiO-67 under mild conditions has been achieved by electrochemical methods for the first time. In the reaction system, a zirconium sheet was utilized as electrodes and a metal source for the assembly of UiO-67. High-crystalline UiO-67 with a regular tetrahedral morphology of around 1 μm was obtained within 1.

Tricholomines A and B, two new amides from the fruiting bodies of Tricholoma bakamatsutake.

Two new amides tricholomines A (1) and B (2), along with nine known compounds, were isolated from the dried fruiting bodies of Tricholoma bakamatsutake. Their structures were determined on the basis of extensive spectroscopic analysis or comparison with the data in the literatures. The absolute configuration of 1 was confirmed by single crystal X-ray diffraction analysis.

Mixed-Metal-Cluster Strategy for Boosting Electrocatalytic Oxygen Evolution Reaction of Robust Metal-Organic Frameworks.

Rational construction of mixed metal-organic frameworks (MOFs) has been proved to be an effective way to heighten the electrocatalytic performance for MOFs, while the function of mixed metal clusters in MOFs to the electrocatalytic activity has not been known. For the first time, we present a mixed-metal-cluster strategy to boost electrocatalytic oxygen evolution reaction (OER) performance for MOFs. Heterometal clusters (FeM(μ-O) (CHCOO)(HO), denoted as FeM (M: Co or Ni)), were chosen as the metal source to construct two bimetal PCN-250-FeM.

A new -terphenyl derivative from the fruiting bodies of (L.) P. Karst.

A new -terphenyl, 2',3'-diacetoxy-4,5,5',6',4'',5''-hexahydroxy--terphenyl (), along with 12 known compounds were isolated from the fruiting bodies of (Bankeraceae). Their structures were confirmed on the basis of extensive spectroscopic analysis and comparison with the spectral data in the literature. Compound exhibited weak cytotoxicity against colon cancer SW480 and leukemia HL-60 cell lines, with IC values of 55.

Rapid and Low-Cost Electrochemical Synthesis of UiO-66-NH with Enhanced Fluorescence Detection Performance.

Rapid and low-cost synthesis of metal-organic frameworks (MOFs) are very meaningful for their future practical application. In the present study, a Zr-based ultrastable MOF, UiO-66-NH, was successfully synthesized by electrochemical method using metal Zr as the metal source at room temperature and atmospheric pressure. The effects of the reaction conditions, including the ratio of solvent (electrolyte), the applied voltage and different reaction time, on the crystallinity, morphology, and synthesis rate of the product were fully investigated.

Folic Acid Functionalized Zirconium-Based Metal-Organic Frameworks as Drug Carriers for Active Tumor-Targeted Drug Delivery.

Nanoscale metal-organic frameworks (NMOFs) have proven to be a class of promising drug carriers as a result of their high porosity, crystalline nature with definite structure information, and potential for further functionality. However, MOF-based drug carriers with active tumor-targeting function have not been extensively researched until now. Here we show a strategy for constructing active tumor-targeted NMOF drug carriers by anchoring functional folic acid (FA) molecules onto the metal clusters of NMOFs.