Novel Covalent Triazine Framework for High-Performance CO Capture and Alkyne Carboxylation Reaction.

Carbon dioxide capture and conversion have attracted extreme enthusiasm from the scientific community owing to global warming and environmental problems. However, conversion of CO under atmospheric pressure is of great challenge because of the inertness of CO. Herein, we present a novel covalent triazine framework (CTF-DCE) prepared via ZnCl-catalyzed ionothermal trimerization reaction of di(4-cyanophenyl)ethyne, which displays a high Brunauer-Emmett-Teller surface area of 1355 m g and an excellent CO capture capacity of 191 mg/g at 273 K/1 bar.

Molecular characterization and new genotypes of Enterocytozoon bieneusi in minks (Neovison vison) in China.

Microsporidiosis is an emerging and opportunistic disease, and Enterocytozoon bieneusi is the main cause of this disease in humans. Little information is available on prevalence and genotyping of E. bieneusi in minks.

Phosphodiesterase-5 inhibitors in Chinese tonic liquors by liquid chromatography coupled with quadrupole time of flight mass spectrometry.

Chinese tonic liquor is an important dietary supplement in daily use, but it often happens that illicitly adulterated drugs in Chinese tonic liquor could lead to food safety issues. In this survey, an analytical method consisting of a liquid chromatography-quadrupole-time of flight mass spectrometer (LC-Q-TOF-MS), coupled with quick easy cheap effective rugged safe (QuEChERS) pretreatment, was established for identification of phosphodiesterase type 5 enzyme (PDE-5) inhibitors in Chinese tonic liquors. 86 PDE-5 inhibitors were qualitatively analysed by employing information dependent acquisition mass spectrometry (IDA-MS) in comparison with the accurate mass of the protonated molecular ion, isotopic pattern, library and chemical formula.

Patient-derived avian influenza A (H5N6) virus is highly pathogenic in mice but can be effectively treated by anti-influenza polyclonal antibodies.

Highly pathogenic avian influenza A (H5N6) virus has been circulating in poultry since 2013 and causes sporadic infections and fatalities in humans. Due to the re-occurrence and continuous evolution of this virus subtype, there is an urgent need to better understand the pathogenicity of the H5N6 virus and to identify effective preventative and therapeutic strategies. We established a mouse model to evaluate the virulence of H5N6 A/Guangzhou/39715/2014 (H5N6/GZ14), which was isolated from an infected patient.

Toxoplasma gondii and Neospora caninum in Tolai Hares (Lepus tolai) Intended for Human Consumption in China: Seroprevalence, DNA Detection, and Genotyping.

Currently, there is no information available on the detection of Toxoplasma gondii and Neospora caninum in the tissues of Tolai hares in China. This study aimed to investigate the prevalence of these protozoan parasites in Tolai hares obtained from Shandong province, eastern China, between January 2016 and June 2017. Serum and brain tissue samples of 358 Tolai hares were obtained and detected for the presence of antibody and parasite DNAs by serodiagnosis and polymerase chain reaction (PCR), respectively.

Seasonal variations in body melanism and size of the wolf spider (Araneae: Lycosidae).

Variations in species morphology and life-history traits strongly correlate with geographic and climatic characteristics. Most studies on morphological variations in animals focus on ectotherms distributed on a large geographic scale across latitudinal and/or altitudinal gradient. However, the morphological variations of spiders living in the same habitats across different seasons have not been reported.

3D mesoporous CuFeO as a catalyst for photo-Fenton removal of sulfonamide antibiotics at near neutral pH.

Increasing the amount of surface active sites of the material may be a feasible way to improve the efficiency ofthe generation of Fe in the photo-Fenton process. In this work, a simple synthesis method was adopted to synthesize 3D ordered mesoporous CuFeO with large specific surface areaby using ferric nitrate and copper nitrate as the precursor and KIT-6 as the template. The synthesized materials were characterized by nitrogen adsorption-desorption, XRD, TEM, FT-IR and UV-vis DRS.

[Rapid screening of 24 tranquillizer drugs in fish and fishery products by ultra-high performance liquid chromatography-quadrupole/electrostatic field orbitrap high resolution mass spectroscopy].

A method was developed for the simultaneous determination of 24 tranquillizer drugs in fish and fishery products using ultra-high performance liquid chromatography-quadrupole/electrostatic field orbitrap high resolution mass spectrometry (UPLC-Q-Orbitrap HRMS). The samples were extracted with acetonitrile. Then, the extracts were concentrated, dissolved by 50% (v/v) methanol aqueous solution, cleaned up with hexane saturated by acetonitrile.

[Rapid determination of 25 drug residues in aquatic products by ultra performance liquid chromatography-quadrupole/electrostatic field orbitrap high resolution mass spectrometry].

An ultra performance liquid chromatography-quadrupole/electrostatic field orbitrap high resolution mass spectrometry (UPLC-Q Orbitrap HRMS) method was developed for the rapid screening of 25 drug residues in aquatic products by the application of a novel enhanced matrix removal of lipids (EMR-Lipid). The samples were extracted with acetonitrile, cleaned-up with EMR-Lipid, and salted out with 3.0 g sodium chloride and 3.

The first complete genome sequence of narcissus latent virus from Narcissus.

The complete sequence of a narcissus virus isolated from the Netherlands (Narv-NL) was determined to be 8172 nucleotides in length with an open reading frame encoding for 2624 amino acids. Phylogenetic analysis indicates that Narv-NL is clustered with high confidence among representative members from the genus Macluravirus, including artichoke latent virus (ArLV) and Chinese yam necrotic mosaic virus (CYNMV). Sequence analyses indicated Narv-NL shares 67%-69% nucleotide and 51%-68% amino acid sequence identity with ArLV and CYNMV either in the complete ORF or the coat protein (CP) gene, whereas it had 81%-99 % nucleotide and 80%-99 % amino acid sequence identity with the corresponding CP sequences of narcissus latent virus (NLV) isolates, suggesting that Narv-NL is a member of NLV.

[Determination of 64 veterinary drug residues in aquatic products by ultra-high performance liquid chromatography-quadrupole/electrostatic field orbitrap high-resolution mass spectrometry].

A method has been developed for the simultaneous determination of 64 veterinary drugs in aquatic products using ultra-high performance liquid chromatography-quadrupole/electrostatic field orbitrap high-resolution mass spectrometry. The samples were extracted with an acetonitrile/water mixture (80/20, v/v), cleaned up by normal hexane saturated with acetonitrile and primary secondary amine (PSA) adsorbent, quantified with external standard method. The drugs were analyzed in full scan/data dependent mass spectrum 2 (Full MS/ddMS) Top 1 mode.

[Rapid determination of 55 fungicides in siraitia grosvenoriis by QuEChERS and high performance liquid chromatography-tandem mass spectrometry].

A method for the determination of 55 fungicides in siraitia grosvenoriis by QuEChERS and high performance liquid chromatography-tandem mass spectrometry (HPLC-MS/MS) was established. The samples were extracted with acetonitrile containing 1%(v/v) acetic acid, then dehydrated by anhydrous magnesium sulfate and purified by anhydrous sodium sulfate, -propyl ethylenediamine (PSA) and C18. Then, 95% (v/v) acetonitrile aqueous solution (organic phase) and water (aqueous phase), both containing 0.

n. sp. (Nematoda: Longidorinae) from the Rhizosphere of Japanese (Thunb.), a Cryptic Species Related to Williams, 1961.

n. sp., isolated in Ningbo, China, from the rhizosphere of (Thunb.

Culture-Free Detection of Crop Pathogens at the Single-Cell Level by Micro-Raman Spectroscopy.

The rapid and sensitive identification of invasive plant pathogens has important applications in biotechnology, plant quarantine, and food security. Current methods are far too time-consuming and need a pre-enrichment period ranging from hours to days. Here, a micro-Raman spectroscopy-based bioassay for culture-free pathogen quarantine inspection at the single cell level within 40 min is presented.

Qualitative analysis of flavors and fragrances added to tea by using GC-MS.

A precise identification method was developed to identify the flavors and fragrances added to tea matrix artificially using gas chromatography with mass spectrometry and gas chromatography with quadrupole time-of-flight mass spectrometry. The proposed method was based on the corresponding "three-column retention indices, two exact mass numbers, one mass spectrum matching degree" database of 40 kinds of common flavors and fragrances. The intraday and the interday relative standard deviation of the retention indices were less than 0.

Study of chest injuries to 3-year-old child occupants seated in impact shield and 5-point harness CRSs.

Objective: The objective of this study was to investigate whether the 5-point harness or the impact shield child restraint system (CRS) or both have the potential to cause chest injuries to children. This is determined by examining whether the loading to the chest reaches the internal organ injury threshold for children.

Method: The chest injury risk to a child occupant in a CRS was investigated using Q3 dummy tests, finite element (FE) simulations (Q3 dummy and human models), and animal tests.

[Determination of three tranquillizer residues in animal foods by QuEChERS-high performance liquid chromatography-tandem mass spectrometry].

A method for simultaneous determination of chlorpromazine, diazepam and metolazone residues in porcine muscle, fish, liver and kidney was developed using QuEChERS and HPLC-MS/MS technique. The samples were extracted with ethyl acetate and cleaned up with C, -propylethylendiamine (PSA) and NH sorbents after using NaSO as dehydrating agent. The analytes were separated by a special C column, Atlantis T3, and gradiently eluted with a mixed solution of 5 mmol/L formic acid and acetonitrile at a flow rate of 0.

Phylogeny, Pathogenicity, and Transmission of H5N1 Avian Influenza Viruses in Chickens.

We analyzed five H5N1 avian influenza viruses (AIVs) isolated from different birds in 2012 in China. Based on whole-genome sequences, we divided the viruses into four genotypes. The DKE26, GSE43, and DKE53 viruses belonged to Genotypes 1-3, respectively.

Chloroplast Genomic Resource of Paris for Species Discrimination.

Paris is famous in China for its medicinal value and has been included in the Chinese Pharmacopoeia. Inaccurate identification of these species could confound their effective exploration, conservation, and domestication. Due to the plasticity of the morphological characteristics, correct identification among Paris species remains problematic.

MD simulation study of the diffusion and local structure of n-alkanes in liquid and supercritical methanol at infinite dilution.

The diffusion coefficients of 14 n-alkanes (ranging from methane to n-tetradecane) in liquid and supercritical methanol at infinite dilution (at a pressure of 10.5 MPa and at temperatures of 299 K and 515 K) were deduced via molecular dynamics simulations. Values for the radial distribution function, coordination number, and number of hydrogen bonds were then calculated to explore the local structure of each fluid.

Residue behaviors and dietary risk assessment of dinotefuran and its metabolites in Oryza sativa by a new HPLC-MS/MS method.

In this study, we developed a new method to detect dinotefuran and its metabolites (UF and DN) in Oryza sativa (Rice) by HPLC-MS/MS in multiple reaction monitoring (MRM) modes. The recovery rates for dinotefuran, UF and DN were 82.3-85.

Enhancing growth of Chlamydomonas reinhardtii and nutrient removal in diluted primary piggery wastewater by elevated CO supply.

The coupling of primary piggery wastewater as a culture medium with elevated CO aeration is thought to be an economically feasible option for the cultivation of microalgae. However, little information is available regarding the photosynthetic characteristics of microalgae and nutrient removal from wastewater at different CO concentrations. It was found that elevated CO aeration provided sustained growth at CO concentrations ranging from 5% to 15% and performed best with 5% CO aeration in primary piggery wastewater for Chlamydomonas reinhardtii growth.

Isolation and phylogenetic study of Rift Valley fever virus from the first imported case to China.

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