Month: March 2021

The reaction rate of a catalyzed reaction is faster than the reaction rate of the uncatalyzed reaction at the same temperature. Formula: C7H5BrO2, 2635-13-4, Name is 5-Bromobenzo[d][1,3]dioxole, SMILES is BrC1=CC=C(OCO2)C2=C1, in an article , author is Requejo, Patricia F., once mentioned of 2635-13-4.

Study of Liquid-Liquid Equilibrium of Aqueous Two-Phase Systems Based on Ethyl Lactate and Partitioning of Rutin and Quercetin

Two ethyl lactate (EL)-based aqueous two-phase systems (ATPSs) were studied at T = 298.15 K and atmospheric pressure. Sodium tartrate and potassium sodium tartrate organic salts have been used to form biphasic systems. To assess the phase splitting, binodal curves and tie-lines were obtained experimentally by the cloud point method and a technique, which consist of the density and refractive index, respectively. Binodal curves were fitted with the Merchuk equation obtaining a good fit. Moreover, modeling with the universal quasichemical thermodynamic equation was carried out to accurately represent the two-biphasic systems. Furthermore, experimental binodal curves obtained in this work and literature results for the same systems and for systems with EL and other salts were analyzed regarding their similarity. Finally, the application of the adopted ATPS in the partitioning of two flavonoids, rutin and quercetin, was studied in terms of the partition coefficients and the percentage of extraction. Rutin and quercetin showed better affinity to the EL-rich phase, evidencing that the use of the proposed ATPS may be a successful technique in the biotechnological industry for the separation of each flavonoid.

But sometimes, even after several years of basic chemistry education, it is not easy to form a clear picture on how they govern reactivity! 2635-13-4, you can contact me at any time and look forward to more communication. Formula: C7H5BrO2.

Reactions catalyzed within inorganic and organic materials and at electrochemical interfaces commonly occur at high coverage and in condensed media, causing turnover rates to depend strongly on interfacial structure and composition, 344-04-7, Name is 1-Bromo-2,3,4,5,6-pentafluorobenzene, SMILES is FC1=C(Br)C(F)=C(F)C(F)=C1F, in an article , author is Hou, Junjun, once mentioned of 344-04-7, Formula: C6BrF5.

Sub-10 nm Polyamide Nanofiltration Membrane for Molecular Separation

To separate small molecules from the solvent with high permeability and selectivity, the membrane process is thought to be highly effective with much lower energy consumption when compared to the traditional thermal-based separation process. To achieve high solvent permeance, a sub-10 nm thick polyamide nanofiltration membrane was synthesized through interfacial polymerization of ethidium bromide (EtBr) and trimesoyl chloride (TMC). Thanks to the extremely low solubility of the EtBr monomer in the organic phase, the polymerization process was strictly limited at the interface of the water and hexane, leading to an ultrathin polyamide membrane with a thickness down to sub-10 nm. When used in nanofiltration, these ultrathin membranes display ultrafast water permeation of 40 liter per square meter per hour per bar (L m(-2) h(-1) bar(-1)), and a high Congo red rejection rate of 93 %. This work demonstrates a new route to synthesize ultrathin polyamide membranes by the traditional interfacial polymerization.

Interested yet? Read on for other articles about 344-04-7, you can contact me at any time and look forward to more communication. Formula: C6BrF5.

Reactions catalyzed within inorganic and organic materials and at electrochemical interfaces commonly occur at high coverage and in condensed media, causing turnover rates to depend strongly on interfacial structure and composition, 393-36-2, Name is 4-Bromo-3-(trifluoromethyl)aniline, SMILES is C1=C(N)C=CC(=C1C(F)(F)F)Br, in an article , author is Ngaha, Marcel Cedric Deussi, once mentioned of 393-36-2, SDS of cas: 393-36-2.

Indigo Carmine and 2,6-Dichlorophenolindophenol Removal Using Cetyltrimethylammonium Bromide-Modified Palm Oil Fiber: Adsorption Isotherms and Mass Transfer Kinetics

In the present work, the usefulness of cetyltrimethylammonium bromide-modified palm oil fiber (CTAB-modified POF) for the removal of indigo carmine (IC) and 2,6-dichlorophenolindophenol (2,6-DCPIP) from aqueous solutions was investigated. Raw, NaOH-treated, and CTAB-modified POF were characterized by Fourier-transform infrared (FT-IR) spectroscopy, elemental analysis, thermogravimetric-hyperdifferential scanning calorimetric (TG-HDSC) analysis, X-ray diffraction (XRD), and scanning electron microscopy (SEM). The adsorption studies of IC and 2,6-DCPIP were performed in batch mode using CTAB-modified POF. The results showed that equilibrium was attained after a contact time of 30 minutes for IC and 20 minutes for 2,6-DCPIP. The maximum capacity of adsorption was obtained at pH = 2. The capacity of adsorption considerably increased with modified biosorbents and with increasing initial concentration of dyes. The ionic strength favors the increasing adsorption capacity of IC and does not affect the adsorption capacity of 2,6-DCPIP. The percentage of adsorption increased with increasing mass of the biosorbents. The nonlinear regression of adsorption isotherms showed that Freundlich (r(2) = 0.953; chi 2 = 4.398) and Temkin (r(2) = 0.986; chi 2 = 1.196) isotherms are most appropriate to describe the adsorption of IC and 2,6-DCPIP on CTAB-modified POF, respectively. The maximum adsorption capacities determined by the Langmuir isotherm were 275.426 and 230.423 mu mol center dot g(-1) for IC and 2,6-DCPIP, respectively. The linear regression of adsorption kinetics was best described by the pseudo-second-order model (R-2 >= 0.998). The diffusion mechanism showed that external mass transfer is the main rate controlling step. Desorption of the two dyes is favorable in the alkaline medium.

Interested yet? Read on for other articles about 393-36-2, you can contact me at any time and look forward to more communication. SDS of cas: 393-36-2.

Synthetic Route of 95-56-7, 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. 95-56-7, Name is 2-Bromophenol, SMILES is OC1=CC=CC=C1Br, belongs to bromides-buliding-blocks compound. In a article, author is Kianmehr, Ebrahim, introduce new discover of the category.

Nickel(II)- and Silver(I)-Catalyzed C-H Bond Halogenation of Anilides and Carbamates

ortho-C-H bond halogenation of anilides and N-aryl carbamates using easily available N-halosuccinimides (NXS) as the active halogenation reagent in the presence of nickel or silver catalyst has been developed. This method provides a new approach to 2-haloanilides and carbamates, which may serve as starting materials for the synthesis of pharmaceutically and biologically active compounds.

Synthetic Route of 95-56-7, Because enzymes can increase reaction rates by enormous factors and tend to be very specific, typically producing only a single product in quantitative yield, they are the focus of active research.you can also check out more blogs about 95-56-7.

Reference of 3433-80-5, Catalysts allow a reaction to proceed via a pathway that has a lower activation energy than the uncatalyzed reaction. 3433-80-5, Name is 2-Bromobenzyl bromide, SMILES is BrC1=CC=CC=C1CBr, belongs to bromides-buliding-blocks compound. In a article, author is Buchner, Magnus R., introduce new discover of the category.

A Second Modification of Beryllium Bromide: beta-BeBr2

The synthesis of a second beryllium bromide modification, beta-BeBr2, was accomplished through recrystallization of alpha-BeBr2 from benzene in the presence of cyclo-decamethylpentasiloxane. This phase was analyzed via single-crystal X-ray diffraction and IR and Raman spectroscopy as well as density functional theory calculations. This enabled a comparison to alpha-BeBr2 and the alpha and beta phases of beryllium chloride and iodide.

Reference of 3433-80-5, Consequently, the presence of a catalyst will permit a system to reach equilibrium more quickly, but it has no effect on the position of the equilibrium as reflected in the value of its equilibrium constant.I hope my blog about 3433-80-5 is helpful to your research.

Related Products of 2746-25-0, Catalysts allow a reaction to proceed via a pathway that has a lower activation energy than the uncatalyzed reaction. 2746-25-0, Name is 1-(Bromomethyl)-4-methoxybenzene, SMILES is COC1=CC=C(CBr)C=C1, belongs to bromides-buliding-blocks compound. In a article, author is Sood, Ashwani Kumar, introduce new discover of the category.

Interactions in the mixed micelles of monomeric and gemini surfactants: Influence of some co-solvents as a function of temperature

Mixed micellar behavior of a series of m-2-m cationic gemini surfactants (where m= 10, 12 and 14) with monomeric surfactants (dodecyltrimethylammonium bromide, tetradecyltrimethylammonium bromide and cetyltrimethylammonium bromide) has been studied in aqueous and in aqueous n-propanol, n-butanol, tertiary butanol, propylene glycol and glycerol solutions using conductivity, surface tension, viscosity and dynamic light scattering techniques at 298.15, 308.15 and 318.15 K, respectively. In mixtures of 10-2-10 with monomeric surfactants, the synergistic interactions increase with the chain length of monomeric surfactants whereas the mixtures with 12-2-12 and 14-2-14 exhibit the opposite trends. However, the synergistic interactions decrease with the increase in temperature of all the mixtures. The thermodynamic and surface parameters have been evaluated and the influence of the variations in hydrophobic chain length of the surfactants and the type of the co-solvent on these parameters has been discussed. The hydrodynamic diameter increases with the chain length of the surfactants. (C) 2015 The Authors. Published by Elsevier B.V. on behalf of King Saud University.

Related Products of 2746-25-0, The reactant in an enzyme-catalyzed reaction is called a substrate. Enzyme inhibitors cause a decrease in the reaction rate of an enzyme-catalyzed reaction.I hope my blog about 2746-25-0 is helpful to your research.

Children learn through play, and they learn more than adults might expect. Science experiments are a great way to spark their curiosity, Computed Properties of C8H5Br766-96-1, Name is 1-Bromo-4-ethynylbenzene, SMILES is C1=C(C=CC(=C1)Br)C#C, belongs to bromides-buliding-blocks compound. In a article, author is Hu, Xu, introduce new discover of the category.

Effects of silica nanoparticle on the solution properties of hydrophobically associating polymer based on acrylamide and beta-cyclodextrin

Synthesis of a novel beta-cyclodextrin-functionalized hydrophobically associating polyacrylamide named ASM was carried out using acrylamide (AM), cetyl dimethyl allyl ammonium bromide (SD-16) and modified beta-cyclodextrin (M-beta-CD) via free-radical copolymerization. Effective characterization methods, including FT-IR, H-1 NMR and TGA, were adopted to evaluate ASM. Influences of SiO2 nanoparticle (nanoSiO(2)) on ASM solution properties were evaluated. The results showed that the addition of nano-SiO2 significantly increased the temperature resistance, salt tolerance and shear resistance of the ASM solution. It was found that ASM/SiO2 composite had 1.5 times higher viscosity than ASM in the range of 25 -90 degrees C. The FT-IR data confirmed that the formation of hydrogen bond between silanol groups at surface of nano-SiO2 and amide group, hydroxyl group of M-beta-CD in ASM molecule contributed to the improved performance. What s more, viscoelastic test indicated that nano-SiO2 remarkably facilitated the crosslinks among polymer molecules and enhanced the elasticity of ASM/SiO2 composite. Based on the enhanced oil recovery tests, the oil recovery could remarkably enhance 10.08% for composite versus only 6.56% for ASM. (C) 2019 Elsevier B.V. All rights reserved.

Note that a catalyst decreases the activation energy for both the forward and the reverse reactions and hence accelerates both the forward and the reverse reactions. you can also check out more blogs about 766-96-1. Computed Properties of C8H5Br.

Related Products of 577-19-5, As an important bridge between the micro and macro material world, chemistry is one of the main methods and means for humans to understand and transform the material world. 577-19-5, Name is 1-Bromo-2-nitrobenzene, SMILES is O=[N+](C1=CC=CC=C1Br)[O-], belongs to bromides-buliding-blocks compound. In a article, author is Tauzin, Arthur, introduce new discover of the category.

The aggregation and micellization of ionic surfactants in aqueous solution detected using surface-confined redox and ion-pairing reactions

This article describes the use of a redox-induced ion-pairing reaction confined to an electrode surface to detect the micellar aggregation of ionic surfactants in water. Cyclic voltammetry characterizes the Faradaic response of self-assembled monolayers (SAMs) of ferrocenyldodecanethiolate on gold in aqueous solutions of the sodium salts of the anionic surfactants n-decyl sulfate, n-decyl sulfonate, and taurodeoxycholate, the bromide salt of the cationic surfactant decyltrimethylammonium, and the sodium salt of the azo dye Orange II. These electrolytes present different aggregation behaviors in water. The cyclic voltammograms indicate that the surfactant and dye anions and the bromide counteranion of the cationic decyltrimethylammonium pair with the electrogenerated SAM-bound ferrocenium. The voltammetric signatures are sensitive to the concentration and aggregation state of the ions in solution. The concentration dependence of the apparent redox potential (E degrees'(SAM)) presents the same features observed by potentiometry using surfactant ion-selective or bromide electrodes, indicating that E degrees'(SAM) tracks the activity of the unaggregated or free surfactant, dye or bromide anions in solution. The formation of micellar aggregates above the critical micelle concentration (cmc) causes the free anion activity to deviate from the molar concentration of added surfactant, resulting in a break in the plot of E degrees'(SAM) versus the logarithm of the surfactant concentration. The quantity of surfactant anions associated to the oxidized SAM increases with the solute concentration and plateaus out at concentrations > cmc. These findings point to the potential application of ferrocene-terminated SAMs to the investigation of ionic micelle-forming systems and the determination of their cmc’s. (C) 2019 Elsevier Ltd. All rights reserved.

Related Products of 577-19-5, The reactant in an enzyme-catalyzed reaction is called a substrate. Enzyme inhibitors cause a decrease in the reaction rate of an enzyme-catalyzed reaction.I hope my blog about 577-19-5 is helpful to your research.

Chemistry is traditionally divided into organic and inorganic chemistry. The former is the study of compounds containing at least one carbon-hydrogen bonds. 98475-07-1, Name is Methyl 2-(bromomethyl)-3-nitrobenzoate, molecular formula is C9H8BrNO4, belongs to bromides-buliding-blocks compound, is a common compound. In a patnet, author is Su, X-F, once mentioned the new application about 98475-07-1, Category: bromides-buliding-blocks.

MiR-16 inhibits hepatocellular carcinoma progression by targeting FEAT through NF-kappa B signaling pathway

OBJECTIVE: MicroRNA-16 (miR-16) expression has been proved to take part in the initiation and development of several cancers, including hepatocellular carcinoma (HCC). However, its role and its molecular mechanism in HCC cells remain unclear. Our study aimed to elucidate miR-16 probable role and potential mechanism in HCC cells. PATIENTS AND METHODS: MiR-16 expression in HCC was measured by Real Time-Polymerase Chain Reaction (RT-PCR). MiR-16 mimic or inhibitor was applied to increase or decrease miR-16 expression in Huh7 cells separately. The cell viability was measured by MTT (3-(4,5-dimethylthiazol-2-yl)-2.5-diphenyl tetrazolium bromide). The invaded cells and migrated cells were detected by the transwell assay. The epithelial-mesenchymal transition (EMT) and the nuclear factor-kappa B (NF-kappa B) were performed using Western blot. The tumor growth was measured via xenograft tumor formation assay. Moreover, bioinformatical methods and luciferase reporter assay were carried out to confirm the miR-16 target gene. RESULTS: MiR-16 expression was downregulated in HCC tissues and cells. Furthermore, the increasing miR-16 expression was suppressed. whereas the decreasing miR-16 expression promoted cell proliferation, invasion, and migration in Huh7 cells. Moreover, miR-16 targeted FEAT in regulating HCC progression. FEAT was associated with a poor prognosis of HCC patients. Especially. miR-16 suppressed EMT and NF-kappa B pathway in HCC and inhibited the tumor growth in vivo. CONCLUSIONS: We stated that miR-16 suppressed HCC cell progression by targeting FEAT and inhibiting EMT and NF-kappa B pathway. MiR-16 may be clinically utilized as a factor for the clinical diagnosis and prognosis of HCC.

We¡¯ll also look at important developments in the pharmaceutical industry because understanding organic chemistry is important in understanding health, medicine, 98475-07-1. The above is the message from the blog manager. Category: bromides-buliding-blocks.

The reaction rate of a catalyzed reaction is faster than the reaction rate of the uncatalyzed reaction at the same temperature. 539-74-2, Name is Ethyl 3-bromopropanoate, SMILES is CCOC(=O)CCBr, in an article , author is Wang, Guimei, once mentioned of 539-74-2, Name: Ethyl 3-bromopropanoate.

Near-infrared squaraine fluorescent probe for imaging adenosine 5 ‘-triphosphate in live cells

Adenosine 5’-triphosphate (ATP), as a molecular currency for intracellular energy transfer, not only participates in various physiological activities, but also involves in various pathological processes of living cells. Therefore, the establishment of a simple, rapid, sensitive and accurate ATP analysis method is of great significance for the study of its physiological functions. In this work, we rationally design a near-infrared phenylboronic acid group-functionalized dicyanovinyl squaraine (SQ- PBA3), with which a supramolecular assembly was constructed for fluorescent imaging of ATP. In PBS buffer, SQ-PBA3 changes self-assembly when adding cetyltrimethyl ammonium bromide (CTAB) deriving fluorescence response of SQ-PBA3 to ATP with the maximum emission at 700 nm, due to the specificity of phenylboronic acid to diols and the multiple electrostatic interactions between SQ PBA3, ATP and CTAB molecules. Meanwhile, the probe was successfully applied to monitor intracellular ATP level in MCF-7 cells with high sensitivity and selectivity.

Interested yet? Read on for other articles about 539-74-2, you can contact me at any time and look forward to more communication. Name: Ethyl 3-bromopropanoate.