bluuebunny/crossref_metadata_2025_split huggingface dataset:
Preparation of a high‐performance magnetic molecularly imprinted sensor for SERS detection of cyfluthrin in river
Authors: Wang Yan , Li Hongji , Wang Xiaonan , Wang Zirun , Wang Mingchao , Li Yue , Wang Qingwei 
Published: March 2019

AbstractA novel magnetic molecularly imprinted sensor (Fe3O4/GO/Ag‐MIPs) was successfully synthesized. Combining with the technique of surface‐enhanced Raman scattering (SERS), it could be applied to detect cyfluthrin (LC). Herein, GO and Ag particles were anchored on the surface of the Fe3O4@SiO2 to obtain the composite (Fe3O4/GO/Ag), which was prepared as a SERS substrate. Then, the Fe3O4/GO/Ag‐MIPs (FGA‐MIPs) prepared by precipitation polymerization was evaluated as the SERS imprinted sensor for selective detection of LC from aqueous medium. The morphology and structural properties of FGA‐MIPs were characterized by a series of modern analysis measurements. The results proved that FGA‐MIPs possessed wonderful magnetic separation, sensitive SERS detection, and selectivity. Under optimal conditions, it exhibited a good linear relationship (R2 = 0.9926) between the Raman shift (at 1,004 cm−1) and the concentration of LC among 10−3–10−8 mol/L, and the limit of detection was 10−8 mol/L. Meanwhile, the selective experiment indicated that this material owned specific selectivity to the template molecules. Thus, the result of this experiment demonstrated that the FGA‐MIPs was a highly sensitive and selective sensor material in the field of LC detection, and it provided a new approach to other residual pyrethroid detection in the environment water.
Quantitative Ultrasound Imaging to Assess Skeletal Muscles in Adults with Multiple Sclerosis: A Feasibility Study
Authors: Gao Jing , Memmott Benjamin , Poulson Jonathan , Harmon Bryce , Hammond Chris 
Published: March 2019

ObjectivesThe aim of this study was to assess the feasibility of quantitative ultrasound imaging (QUI) in assessing the biceps brachii muscle and gastrocnemius muscle in adults with multiple sclerosis (MS).MethodsFrom May to October 2018, we prospectively performed B‐mode ultrasound imaging and ultrasound strain elastography of the biceps brachii muscle and gastrocnemius muscle in 24 patients with MS and 10 age‐matched healthy volunteers. ImageJ (https://imagej.nih.gov/ij) was used to assess the muscle pixel intensity in grayscale images. Using 2‐dimensional speckle‐tracking software, we estimated the muscle axial peak strain (maximum deformation) produced by manual compression with an ultrasound transducer and the muscle longitudinal peak strain (maximum displacement) produced by passive elbow and ankle movements. Muscle QUI parameters used in the study included the mean pixel intensity, axial peak strain ratio (SR = muscle strain/subcutaneous tissue strain), and longitudinal peak SR. Statistical analyses included 1‐way analysis of variance and a post hoc test to examine the differences in QUI parameters among 3 groups (1, affected muscle in patients with MS; 2, unaffected muscle in patients with MS; and 3, healthy muscle in controls) and, in all paired groups, an unpaired t test to compare the muscle SR in patients with MS with a Modified Ashworth Scale (MAS) score of 1 or higher to those with an MAS score of 0.ResultsThe mean age of the 24 patients with MS was 43 years, and all patients and volunteers were female. We observed a significant difference in QUI parameters among the affected muscle in MS, unaffected muscle in MS, and healthy muscle in all paired groups and in patients with MS between an MAS score of 1 or higher and an MAS score of 0 (all P < .05). Interobserver and intraobserver variability in performing QUI was good (intraclass correlation coefficients >0.75).ConclusionsOur results suggest that QUI is feasible to assess muscle echogenicity and mechanical behaviors in adult MS.
The photokinetics of phenothiazine dyes with titanium trichloride in different solvents
Authors: Nadeem Syed Muhammad Saqib , Saeed Rehana 
Published: March 2019

AbstractThe kinetic parameters of photoinduced electron transfer reaction of two phenothiazine dyes, methylene blue and methylene green with titanium trichloride, were determined in water and different aqueous‐alcoholic solvents at different acidities by using a specially designed optical system. The rate of photoinduced electron transfer reaction was measured by determining the quantum yield of the reaction. The methylene green had a higher reactivity as compared to methylene blue with titanium trichloride. The graphical analysis showed that the reaction of dye with titanium trichloride follows pseudo–first‐order kinetics. A reaction mechanism was proposed by considering the different excited states of dye and their possible interaction with the solvent and titanium trichloride. The different steps in the reaction mechanism were taken into consideration for deriving rate equations, which were used to determine the different rate constants in the reaction mechanism in different solvents.
Role of Na2CO3 on an AISI 330 austenitic stainless steels oxidation at 900°C
Authors: Buscail Henri , Issartel Christophe , Riffard Fréderic , Perrier Sébastien , Rabaste Francoise , Poble Olivier , Combe Cécile 
Published: March 2019

AbstractThis study shows the influence of sodium carbonate coatings on the austenitic AISI 330 (Fe–35Ni–19Cr–1.3Si) oxidized during 48 hr at 900°C. The N2‐5 vol% H2 gaseous environment was used to simulate industrial heat treatment conditions. Silica scale formation is promoted by low oxygen‐containing gaseous environments and the high alloy silicon content. On this alloy, an amorphous silica scale is formed after the blank material oxidation. It indicates that silicon is free to diffuse in the alloy and forms a silica scale at the internal interface. On Na2CO3‐coated specimens, no silica scale is formed. Then, sodium combines with silicon to form amorphous glass particles. A comparison has been performed with results obtained on a AISI 330Cb niobium containing alloy in the same oxidizing conditions. It is then concluded that sodium carbonate coatings could only favor silica formation on niobium containing alloy due to a reaction between sodium and niobium.
Conjugated Linoleic Acid Ameliorates High Fructose‐Induced Hyperuricemia and Renal Inflammation in Rats via NLRP3 Inflammasome and TLR4 Signaling Pathway
Authors: Tan Jianyang , Wan Liping , Chen Xiaofang , Li Xiaolei , Hao Xiaoxu , Li Xiaofei , Li Jian , Ding Hong 
Published: March 2019

ScopeConjugated linoleic acid (CLA), a bioactive substance predominantly found in ruminant products, improves insulin resistance and exhibits anti‐inflammatory activity. The chief objective of the study is to investigate the effects and potential mechanisms of CLA on high fructose‐induced hyperuricemia and renal inflammation.Methods and resultsHyperuricemia and renal inflammation are induced in rats by 10% fructose. Hyperuricemia, insulin resistance, and renal inflammation are evaluated. CLA potently ameliorates fructose‐induced hyperuricemia with insulin resistance and significantly reduces the levels of inflammation factors in serum and kidney. It reverses fructose‐induced upregulation of glucose transporter 9 (GLUT9) and urate transporter 1 (URAT1) in the kidney. Moreover, CLA dramatically inhibits the activation of the nucleotide‐binding oligomerization domain–like receptor family pyrin domain‐containing 3 (NLRP3) inflammasome. Additionally, CLA suppresses toll‐like receptor 4 (TLR4)/myeloid differentiation factor 88 (MyD88) signaling activation to inhibit nuclear factor‐kB (NF‐kB) signaling in the kidney of fructose‐fed rats.ConclusionCLA ameliorates hyperuricemia along with insulin resistance and renal inflammatory, which may be associated with the suppression of renal GLUT9 and URAT1 in fructose‐fed rats. Its molecular mechanism may be related to the inhibition of NLRP3 inflammasome and TLR4/MyD88 signaling pathway. Therefore, CLA may be a promising candidate for preventing fructose‐induced hyperuricemia and renal inflammation.