Author: tianli

Chemo-enzymatic cascade processes are invaluable due to their ability to rapidly construct high-value products from available feedstock chemicals in a one-pot relay manner. In an article, author is Ai, Jiayi, once mentioned the application of 16545-68-9, Name is Cyclopropanol, molecular formula is C3H6O, molecular weight is 58.0791, MDL number is MFCD19707103, category is alcohols-buliding-blocks. Now introduce a scientific discovery about this category, Recommanded Product: Cyclopropanol.

Highly flexible, self-healable and conductive poly(vinyl alcohol)/Ti3C2Tx MXene film and it’s application in capacitive deionization

Self-healing materials show great application potential in the field of flexible energy storage and wearable devices due to their special properties. Here, a self-healing material, application in Capacitive deionization for the first time is reported, which could autonomously self-healing damaged interfaces. We fabricated that hydrogel (MNH) composites incorporating MXene (Ti3C2Tx) by dynamic poly(vinylalcohol)-based network cross-linked by diol-borate ester bonding. The material fast restores its configuration, mechanical properties, and capacitive performances during after healing and shift different shape in the actual application environment transformation. The MNH electrode has good mechanical properties, self-healing efficiency is as high as 92%, the electrochemical healing properties is of 95.8%. The feasibility of its application in capacitive deionization was proved. The electrode performed a salt adsorption capacity of about 51 mg/g at a current density of 10 mA.g(-1) and a voltage window of 1 V and showed excellent cyclic stability. Our work expands the application scenarios of self-healing materials and provides a promising approach for the development of capacitive deionizing electrodes with good self-healing properties and long life.

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Chemistry is the experimental and theoretical study of materials on their properties at both the macroscopic and microscopic levels. 1606-85-5, Name is 2,2-(But-2-yne-1,4-diylbis(oxy))diethanol, molecular formula is C8H14O4. In an article, author is Yang, Haiping,once mentioned of 1606-85-5, Computed Properties of C8H14O4.

A new insight of lignin pyrolysis mechanism based on functional group evolutions of solid char

To elucidate the mechanism of biomass lignin pyrolysis, the functional group evolution in lignin chars derived at 200-600 degrees C was investigated using two-dimensional perturbation correlation infrared spectroscopy, associated with the properties of the volatile products. Results from 2D-PCIS pointed that the change in the alcohol groups C-OH occurs earlier than that in the carbonyl groups C=O before 250 degrees C, corresponding to the reaction of keto-enol tautomerization: C-OH -> C=O, and the cleavage of bonds and remodeling reactions of the side chains of the benzene rings are synchronous. Besides, the formation of simple substituted benzene structures was earlier than complex substituted benzene structures. Decarbonylation, dehydrogenation and dealkylation were intensified during polycondensation of benzene rings. These findings are significant for achieving an in-depth understanding of lignin pyrolysis.

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Synthetic Route of 627-18-9, Catalysts allow a reaction to proceed via a pathway that has a lower activation energy than the uncatalyzed reaction. 627-18-9, Name is 3-Bromopropan-1-ol, SMILES is OCCCBr, belongs to alcohols-buliding-blocks compound. In a article, author is Liu, Yunjiao, introduce new discover of the category.

Biotransformation of spent coffee grounds by fermentation with monocultures of Saccharomyces cerevisiae and Lachancea thermotolerans aided by yeast extracts

Spent coffee grounds (SCG) is a low-value solid food waste generated from the rising consumption of coffee. There is a need to transform the huge amount of SCG to value-added products such as alcoholic beverages. In this study, monocultures of Saccharomyces cerevisiae Merit and Lachancea thermotolerans Concerto were used to ferment SCG hydrolysates supplemented with yeast extracts. The addition of yeast extracts slightly enhanced the growth of both S. cerevisiae Merit and L. thermotolerans Concerto. In addition, the yeast extracts also increased the production of organic acids (e.g. succinic acid and acetic acid) and volatiles such as 2-phenylethyl alcohol and ethyl esters (e.g. ethyl octanoate and ethyl 2,4-hexadienoate). Furthermore, the supplementation of yeast extracts showed a more significant effect on the performance (e.g. yeast growth) of S. cerevisiae Merit than that on L. thermotolerans Concerto. Our results indicated that the addition of yeast extracts may provide a new strategy to enhance the transformation of SCG into a potential alcoholic beverage with flavor compound complexity.

Synthetic Route of 627-18-9, Enzymes are biological catalysts that produce large increases in reaction rates and tend to be specific for certain reactants and products. I hope my blog about 627-18-9 is helpful to your research.

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Chemo-enzymatic cascade processes are invaluable due to their ability to rapidly construct high-value products from available feedstock chemicals in a one-pot relay manner. In an article, author is Taylor, Steven, once mentioned the application of 6920-22-5, Name is Hexane-1,2-diol, molecular formula is C6H14O2, molecular weight is 118.17, MDL number is MFCD00010737, category is alcohols-buliding-blocks. Now introduce a scientific discovery about this category, Product Details of 6920-22-5.

Substance use and abuse, COVID-19-related distress, and disregard for social distancing: A network analysis

Research shows that there has been a substantial increase in substance use and abuse during the COVID-19 pandemic, and that substance use/abuse is a commonly reported way of coping with anxiety concerning COVID-19. Anxiety about COVID-19 is more than simply worry about infection. Research provides evidence of a COVID Stress Syndrome characterized by (1) worry about the dangers of COVID-19 and worry about coming into contact with coronavirus contaminated objects or surfaces, (2) worry about the personal socioeconomic impact of COVID-19, (3) xenophobic worries that foreigners are spreading COVID-19, (4) COVID-19-related traumatic stress symptoms (e.g., nightmares), and (5) COVID-19-related compulsive checking and reassurance-seeking. These form a network of interrelated nodes. Research also provides evidence of another constellation or syndrome, characterized by (1) belief that one has robust physical health against COVID-19, (2) belief that the threat of COVID-19 has been exaggerated, and (3) disregard for social distancing. These also form a network of nodes known as a COVID-19 Disregard Syndrome. The present study, based on a population-representative sample of 3075 American and Canadian adults, sought to investigate how these syndromes are related to substance use and abuse. We found substantial COVID-19-related increases in alcohol and drug use. Network analyses indicated that although the two syndromes are negatively correlated with one another, they both have positive links to alcohol and drug abuse. More specifically, COVID-19-related traumatic stress symptoms and the tendency to disregard social distancing were both linked to substance abuse. Clinical and public health implications are discussed.

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One of the major reasons for studying chemical kinetics is to use measurements of the macroscopic properties of a system, such as the rate of change in the concentration of reactants or products with time. 6920-22-5, Name is Hexane-1,2-diol, formurla is C6H14O2. In a document, author is Alfayyadh, Aamer A. M., introducing its new discovery. Recommanded Product: Hexane-1,2-diol.

Synthesis and Characterization of Poly (vinyl alcohol) / Fullerene C60 Membrane via Chemical and Radiation Crosslinking

Fullerene C60 (FULL-C60) was used as a nano-filler in the preparation of the chemical-crosslinking polyvinyl alcohol (PVA) by glutaraldehyde (Glut) which is copolymerized with acrylate oligomers, 2carboxyethyl acrylate (CEA) followed by gamma irradiation. The effect of the FULL-C60 content on the gel content and swelling behavior of Glut-(PVA/CEA)-FULL-C60 copolymer hydrogel was investigated. The results revealed an increase in the gel content and a significant reduction in swelling of the nanocomposite material. There are influences for the PVA molecular weight, fullerene content, and absorbed dose on the gel content of the prepared nanocomposite. The irradiation of chemical crosslinked nanocomposites demonstrated approximately a 90% gelation over a range of 50-300 kGy irradiation doses. A scanning electron microscopy (SEM) analysis showed a homogeneous distribution of nanocomposites in the composite matrix. The improvement in the thermal stability of radiation Glut(PVA/CEA) and Glut-(PVA-CEA)-FULL-C60 was evaluated using the thermogravimetric analysis Technique (TGA). The mechanical properties were examined via dynamic mechanical analysis (DMA) which showed significant variation because of the addition of nanocomposites and irradiation doses.

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Chemo-enzymatic cascade processes are invaluable due to their ability to rapidly construct high-value products from available feedstock chemicals in a one-pot relay manner. In an article, author is Doran, Neal, once mentioned the application of 42142-52-9, Name is 3-(Methylamino)-1-phenylpropan-1-ol, molecular formula is C10H15NO, molecular weight is 165.2322, MDL number is MFCD00674078, category is alcohols-buliding-blocks. Now introduce a scientific discovery about this category, Quality Control of 3-(Methylamino)-1-phenylpropan-1-ol.

Post-legalization changes in marijuana use in a sample of young California adults

Introduction: Increasing marijuana use among young adults is a concern due to substantial acute and chronic health risks. More widespread use of marijuana may also lead to increased use of nicotine and tobacco products. California legalized commercial sales of marijuana for recreational use as of January 2018. To our knowledge no studies to date have examined subsequent changes in marijuana use. The goal of this study was to test the hypothesis that marijuana use frequency increased following legalization of recreational sales. We also hypothesized that increased marijuana frequency would predict greater frequency of nicotine/tobacco consumption. Methods: The study was a secondary analysis of a longitudinal study of tobacco use among non-daily cigarette smokers. Participants were 563 young adults (aged 18-24) enrolled in 2015-16 and followed quarterly for 3 years. Results: A piecewise multilevel regression model indicated that marijuana use frequency did not change over time, including following legalization. More frequent use was associated with younger age and identifying as white (ps < 0.001, which did not change after legalization. Marijuana frequency was moderated by sex (p < .001), with women reporting increasing and men decreasing use over time. It was also associated with tobacco use, and particularly with e-cigarette use following legalization (ps < 0.05). Conclusions: Findings suggest legalization of recreational marijuana sales had a negligible overall impact on days of use among young adults, but may have prompted increased interest in marijuana among some, particularly women and e-cigarette users. The continuously evolving landscape around these products indicates that ongoing surveillance is critical. Do you like my blog? If you like, you can also browse other articles about this kind. Thanks for taking the time to read the blog about 42142-52-9, Quality Control of 3-(Methylamino)-1-phenylpropan-1-ol.

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Chemistry is an experimental science, Recommanded Product: 2516-33-8, and the best way to enjoy it and learn about it is performing experiments.Introducing a new discovery about 2516-33-8, Name is Cyclopropylmethanol, molecular formula is C4H8O, belongs to alcohols-buliding-blocks compound. In a document, author is Giteru, Stephen G..

Regular Elucidating the pH influence on pulsed electric fields-induced self-assembly of chitosan-zein-poly(vinyl alcohol)-polyethylene glycol nanostructured composites

Hypothesis: The high incompatibility of bio-based materials such as protein and polysaccharides require a series of modifications to develop stable microstructures effectively. By modifying the density and charge of surface residues, pulsed electric fields processing can improve inter/intramolecular interactions, compatibility, and microstructure of bio-based nanostructured composites. Experiment: In this work, the impact of pulsed electric fields at a specific energy of 60-700 kJ/kg (electric field strength = 1.6 kV/cm) on self-assembly of zein-chitosan-poly(vinyl alcohol)-polyethylene glycol composite dispersion was investigated at pH 4.0, 5.7, and 6.8. Findings: Superior complex coacervated matrices were assembled at pH 4.0 and 5.7 before and after pulsed electric fields treatment at a specific energy of 390-410 kJ/kg. The compact and homogenous behaviour was attributable to pulsed electric fields-induced alteration of functional group interactions in a pH-dependent manner. Irrespective of the pH, very high electric field intensity caused excessive system perturbation leading to severe fragmentation and poor development of coacervates. The crucial insights from this study reveal that the self-assembly behaviour and integration of biopolymer-based sys-tems possessing different local charges can be enhanced by optimising pulsed electric fields processing parameters and the properties of the colloidal systems such as the pH. (c) 2020 Elsevier Inc. All rights reserved.

Balanced chemical reaction does not necessarily reveal either the individual elementary reactions by which a reaction occurs or its rate law. In my other articles, you can also check out more blogs about 2516-33-8. Recommanded Product: 2516-33-8.

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Synthetic Route of 115-70-8, Redox catalysis has been broadly utilized in electrochemical synthesis due to its kinetic advantages over direct electrolysis. The appropriate choice of redox mediator can avoid electrode passivation and overpotential. 115-70-8, Name is 2-Amino-2-ethylpropane-1,3-diol, SMILES is OCC(CC)(N)CO, belongs to alcohols-buliding-blocks compound. In a article, author is Wang, Jie, introduce new discover of the category.

Strong metal-support interaction induced O-2 activation over Au/MNb2O6 (M= Zn2+, Ni2+ and Co2+) for efficient photocatalytic benzyl alcohol oxidative esterification

A series of metal niobates (MNb2O6, M = Zn2+, Ni2+ and Co2+) were prepared from H-niobate precursor under hydrothermal conditions, in which amino groups of L-lysine play an important role. Au nanoparticles were then supported on these niobates by NaBH4 reduction method. More importantly, the strong interaction between Au nanoparticles and ZnNb2O6 generates negatively charged Au which can activate molecular oxygen to form the exclusive high-active peroxide (NbOOAu) species on Au/ZnNb2O6 surface under visible light irradiation, observed in situ by diffuse reflectance infrared Fourier transform spectra (DRIFTS). The optimal NbOOAu species produced on the surface of Au/ZnNb2O6 can remove the H atom of the methylene group (-CH2-) of benzyl alcohol, leading to high photocatalytic activity of Au/ZnNb2O6 compared with Au/NiNb2O6 and Au/CoNb2O6. This modulation of interaction of Au and niobates for the activation of molecular oxygen provides a new prospect for highly selective photocatalytic oxidation reactions.

Synthetic Route of 115-70-8, Each elementary reaction can be described in terms of its molecularity, the number of molecules that collide in that step. The slowest step in a reaction mechanism is the rate-determining step.you can also check out more blogs about 115-70-8.

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The reaction rate of a catalyzed reaction is faster than the reaction rate of the uncatalyzed reaction at the same temperature. 6338-55-2, Name is 2-(2-(2-Aminoethoxy)ethoxy)ethanol, SMILES is NCCOCCOCCO, in an article , author is Lo Piccolo, Ermes, once mentioned of 6338-55-2, Computed Properties of C6H15NO3.

Girdling stimulates anthocyanin accumulation and promotes sugar, organic acid, amino acid level and antioxidant activity in red plum: An overview of skin and pulp metabolomics

Girdling is a widespread agronomic technique to increase the fruit quality characteristics (e.g. size, solid soluble content [SSC] and colour). However, the information on the fruit metabolic changes related to this practice still remains unclear and fragmentary. Moreover, girdling duration and application time may greatly affect the plant/ fruit metabolic responses producing sometimes counterproductive results. Fruit quality, metabolomic and antioxidant analyses were conducted to characterise the effects of two different girdling dates (4- and 2-weeks before the harvest, 4 W and 2 W, respectively) in skin and pulp of red-fleshed plum (Prunus cerasifera var. pissardii). Overall, the pulp metabolism was altered in both 4 W and 2 W Girdling by inducing accumulation of sugars (sucrose and trehalose), sugar alcohols (inositol and xylitol), organic acids (especially some TCA cycle intermediates such as alpha-ketoglutaric, citric, isocitric, fumaric and malic acid), amino acids (beta-alanine and L-proline), anthocyanins and other phenols. In the skin only girdling 4 W showed major significant differences compared to the control increasing the fruit quality characteristics (size, SSC, dry matter and red colour) and showing greater metabolic changes with respect to the controls. Furthermore, the total antioxidant activity was also increased in both skin and pulp respect to other treatment only in Girdling 4 W. This approach could be used with both P. cerasifera plums as well as other red-fleshed fruit species in order to ensure red-fleshed fruits production with a uniform red colouration and higher content of bioactive compounds.

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Chemistry is the experimental and theoretical study of materials on their properties at both the macroscopic and microscopic levels. 5333-42-6, Name is 2-octyldodecan-1-ol, molecular formula is C20H42O. In an article, author is Zhao, Shujun,once mentioned of 5333-42-6, Quality Control of 2-octyldodecan-1-ol.

3D nanoflower-like layered double hydroxide modified quaternized chitosan/polyvinyl alcohol composite anion conductive membranes for fuel cells

To solve the trade-off problem among ionic conductivity, mechanical and chemical stability of anion exchange membranes (AEMs), quaternized chitosan (QCS) was first prepared and then was blended with polyvinyl alcohol (PVA) to improve mechanical strength of QCS. Afterwards, three-dimensional (3D) hierarchical flower-like layered double hydroxides (LDHs) were prepared via one-pot ethylene glycol-assisted solvothermal method, and then were incorporated into QCS/PVA blend matrix to fabricate composite AEMs. By constructing 3D hierarchical structure, the active sites of LDH nanosheets are fully exposed, thus impressive ion conductivity, alkali and fuel resistant ability of LDH nanosheets can be rationally utilized. The composite membrane displayed the maximum OH- conductivity of 25.7 mS cm(-1), which was 48.6 % higher than that of the pristine membrane. Alkaline stability measurement proved that the composite membranes kept residual ionic conductivity of as high as 92 % after immersion in a 2 M KOH for 100 h. Due to the decreased methanol permeability and increased conductivity, the composite membrane with 6% LDHs content exhibited a peak power density of 73 mW cm(-2) at 60 degrees C, whereas the pristine membrane demonstrated only 40 mW cm(-2).

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