Month: March 2021

In an article, author is Petropolis, Nicholas P., once mentioned the application of 615-36-1, Category: bromides-buliding-blocks, Name is 2-Bromoaniline, molecular formula is C6H6BrN, molecular weight is 172.0225, MDL number is MFCD00007632, category is bromides-buliding-blocks. Now introduce a scientific discovery about this category.

The Interaction of Glymes with Surfactant Micelles

The critical micelle concentrations (CMC) values and counterion dissociation (alpha values) have been determined for a number of mixed micellar systems consisting of two typical ionic surfactants and glycol ethers (glymes) as cosurfactants, namely diethylene glycol dimethyl ether, diethylene glycol diethyl ether, triethylene glycol dimethyl ether, and tetraethylene glycol dimethyl ether. Conductance experiments were used to determine the CMC and alpha values of the mixed micelles as a function of glyme concentration in the aqueous mixed solvent. Favorable interactions between sodium dodecyl sulfate micelles and glyme cosurfactants were deduced from the decreases in the CMC values and the large increase in the alpha values of these systems as a function of increasing glyme concentration in the mixed solvents. In contrast to the anionic surfactant/glyme systems, in general, there appeared to be little favorable interactions between the surfactant and glymes when micelles of the cationic surfactant dodecyltrimethylammonium bromide were formed in water/glyme solvent systems containing an increasing amount of the glymes. The interaction of glymes with the surfactant micelles was examined closely via C-13 nuclear magnetic resonance (NMR) chemical shifts for both surfactant and glyme carbons; these chemical shifts changes were interpreted in terms of the distribution and the localization of the glymes in the aggregates. Finally, partition constants, determined from two-dimensional diffusion-oriented spectroscopy (2D-DOSY) experiments, were used to calculate thermodynamic quantities of transfer of the glymes between the bulk phase and the self-assembled aggregates. All these results are interpreted in terms of the key contributions that both the glyme ethoxylated groups and alkyl endgroups make to the hydrophobic interactions.

If you are interested in 615-36-1, you can contact me at any time and look forward to more communication. Category: bromides-buliding-blocks.

In an article, author is Qiao, Zhan-Ping, once mentioned the application of 111-83-1, Formula: C8H17Br, Name is 1-Bromooctane, molecular formula is C8H17Br, molecular weight is 193.1246, MDL number is MFCD00000276, category is bromides-buliding-blocks. Now introduce a scientific discovery about this category.

Solid-liquid equilibria for the ternary systems of RbX + CdX2 + H2O (X = Cl, Br) at T=298.15 K and the thermodynamic properties of the new solid compounds

Solid-liquid equilibria in the ternary systems RbX + CdX2 + H2O (X = Cl, Br) at T = 298.15 K and under 101.3 kPa were investigated by the method of isothermal solution saturation, and the corresponding phase diagrams were constructed. It was found that there were five crystallization regions corresponding to CdCl2 center dot 2.5H(2)O, RbCd(2)Cl5 center dot H2O, RbCdCl3, Rb4CdCl6 and RbCl in the system (RbCl + CdCl2 + H2O). Four crystallization regions corresponding to CdBr2 center dot 4H(2)O, RbCdBr3, Rb4CdBr6 and RbBr were found in the system (RbBr + CdBr2 + H2O). The new solid compounds RbCdCl3, RbCdBr3 and Rb4CdBr6 were congruently soluble in water, and new double salts RbCd2Cl5 center dot H2O and Rb4CdCl6 were incongruently soluble in water. The new solid-phase compounds RbCd2Cl5 center dot H2O, RbCdCl3, Rb4CdCl6, RbCdBr3 and Rb4CdBr6 were characterized by chemical analysis, XRD and TG-DTG techniques. The standard molar enthalpies of solution of RbCd2Cl5 center dot H2O, RbCdCl3, Rb4CdCl6, RbCdBr3 and Rb4CdBr6 in water were measured to be (20.74 +/- 0.16) k J.mol(-1), (28.00 +/- 0.39) kJ.mol(-1), (96.56 +/- 0.50) kJ.mol(-1), (35.38 +/- 0.33) kJ.mol(-1) and (110.64 +/- 0.62) kJ. mol(-1) by microcalorimetry in the condition of infinite dilution, and their standard molar enthalpies of formation were determined to be-(1545.3 +/- 0.6) kJ.mol(-1),-(856.5 +/- 0.7) kJ.mol(-1),-(2180.1 +/- 1.3) kJ.mol(-1),-(727.1 +/- 0.7) kJ.mol(-1) and-(1920.5 +/- 1.3) kJ.mol(-1), respectively. (c) 2020 Elsevier Ltd.

If you are interested in 111-83-1, you can contact me at any time and look forward to more communication. Formula: C8H17Br.

Reference of 2067-33-6, Children learn through play, and they learn more than adults might expect. Science experiments are a great way to spark their curiosity, 2067-33-6, Name is 5-Bromopentanoic acid, SMILES is O=C(O)CCCCBr, belongs to bromides-buliding-blocks compound. In a article, author is Akbari, Ali, introduce new discover of the category.

The comparison of antibacterial activities of CsPbBr3 and ZnO nanoparticles

All-inorganic cesium lead bromide (CsPbBr3) perovskite nanoparticles and ZnO nanoparticles were synthesized. The structure, optical properties and the morphology of synthesized nanoparticles were fully characterized using X-ray diffraction (XRD), UV/Vis spectroscopy and transition electron microscopy (TEM). A comparative study was carried out to investigate the antibacterial activity of ZnO and CsPbBr3 perovskite nanoparticles toward Gram-negative, rod-shaped Escherichia coli O157:H7 bacteria cells. Experimental results showed that the antibacterial activity of CsPbBr3 nanoparticles was better than that of ZnO nanoparticles.

Reference of 2067-33-6, 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 2067-33-6.

A catalyst don’t appear in the overall stoichiometry of the reaction it catalyzes, but it must appear in at least one of the elementary reactions in the mechanism for the catalyzed reaction. 3433-80-5, Name is 2-Bromobenzyl bromide, molecular formula is C7H6Br2. In an article, author is Wang, Chenyang,once mentioned of 3433-80-5, Name: 2-Bromobenzyl bromide.

A dual promotion strategy of interface modification and ion doping for efficient and stable carbon-based planar CsPbBr3 perovskite solar cells

Carbon-based all-inorganic cesium lead bromide (CsPbBr3) halide perovskite solar cells (PSCs) have attracted tremendous attention owing to their low cost, simplified preparation, and outstanding stability even under harsh conditions. However, the CsPbBr3 perovskite always suffers from an undesirable crystallization and film morphology with incomplete coverage and numerous grain boundaries. Herein, a novel dual promotion strategy combining interface modification with ion doping is proposed to achieve highly efficient and stable carbon-based planar CsPbBr3 PSCs. A thin CsBr modified layer was first inserted between the compact TiO2 (c-TiO2) and PbBr2 layers, wherein the crystallization of PbBr2 can be enhanced and then assist the growth of perovskite grains can be provided, so that CsPbBr3 films can reduce pinhole generation and accelerate carrier extraction, and decrease the hysteresis effect. Then an appropriate cobalt (Co2+) ion is doped into the CsPbBr3 film, which not only increases the grain size with decreasing grain boundary, but also ameliorates the energy level and recombination. Consequently, the champion power conversion efficiency (PCE) of the CsPbBr3 PSCs reaches up to 8.67% with an increment of about 30%. Moreover, the best-performing PSC without encapsulation also displays excellent humidity and thermal stability, maintaining above 98% of its initial PCE in an air atmosphere after 100 days, and over 95% under heat treatment at 85 degrees C after 600 hours, respectively. This study provides a promising route to boost the performance of all-inorganic perovskite solar cells.

Interested yet? Keep reading other articles of 3433-80-5, you can contact me at any time and look forward to more communication. Name: 2-Bromobenzyl bromide.

The reaction rate of a catalyzed reaction is faster than the reaction rate of the uncatalyzed reaction at the same temperature. COA of Formula: C10H13Br, 3972-65-4, Name is 1-Bromo-4-(tert-butyl)benzene, SMILES is CC(C1=CC=C(Br)C=C1)(C)C, in an article , author is Lezov, A. A., once mentioned of 3972-65-4.

Surface active monomers: from micellar solution properties to molecular characteristics

Hydrodynamic methods and light scattering were used in the studies of solutions of a surface active monomer 11-acryloyloxyundecyltrimethylammonium bromide (AUTA-Br) and its polymers in 0.05 M NaCl. Aqueous solutions of AUTA-Br monomer in the concentration range of 4 to 16 CMC contain individual molecules and near-spherical AUTA-Br aggregates. The pAUTA-Br polymers possess rather high equilibrium rigidity (11.8 nm). This high value of equilibrium rigidity found for pAUTA-Br macromolecules is apparently caused by two factors: the presence of a bulky side substituent in each AUTA-Br monomer unit and incomplete suppression of electrostatic interactions between neighboring monomer units in the backbone.

But sometimes, even after several years of basic chemistry education, it is not easy to form a clear picture on how they govern reactivity! 3972-65-4, you can contact me at any time and look forward to more communication. COA of Formula: C10H13Br.

In an article, author is Keshavarz, Mojtaba, once mentioned the application of 685-87-0, Computed Properties of C7H11BrO4, Name is Diethyl 2-bromomalonate, molecular formula is C7H11BrO4, molecular weight is 239.06, MDL number is MFCD00009138, category is bromides-buliding-blocks. Now introduce a scientific discovery about this category.

The role of S100B and nitric oxide in the apoptotic action of pentylenetetrazole on astrocytes

Introduction: Astrocyte, S100B and nitric oxide may have a role in the pathogenesis and treatment of epilepsy. However, the effects of nitric oxide and S100B on the gliotoxic effects of chemical convulsants such as pentylenetetrazole (PTZ) is unknown. Therefore, we aimed to evaluate the effects of S100B and nitric oxide on gliotoxicity of PTZ in a 1321NI1 astrocytic culture. Methods: The 1321N1 astrocytes were exposed to PTZ (40mM), arundic acid (50 mu M) or both of them for 24h. In addition, we poured L-arginine (100 or 500 mu M), N-nitro-L-arginine methyl ester (100 or 500 mu M), 7-nitroindazole (30 or 100 mu M) and aminoguanidine (50 or 100 mu M) to the culture media contained PTZ, arundic acid or both of them and incubated for 24h. Cell viability was measured by the methylthiazolyldiphenyl-tetrazolium bromide reagent and the S100B protein level was measured using an enzyme-linked immunosorbent assay. Results: There was a negative correlation between cell viability in astrocytes and the intracellular S100B levels. PTZ decreased cell viability, but it increased the intracellular S100B levels. Arundic acid, N-nitroarginine methyl ester, 7-nitroindazole and aminoguanidine reversed the PTZ effects on cell viability and intracellular S100B levels. Adding the L-arginine to PTZ plus arundic acid reduced the modulatory effects of arundic acid on PTZ. Conclusion: Nitric oxide and S100B have a role in gliotoxicity of PTZ in cell culture. Arundic acid suppresses PTZ-induced S100B elevation and gliotoxicity possibly by modulation of the nitric oxide pathway.

If you are interested in 685-87-0, you can contact me at any time and look forward to more communication. Computed Properties of C7H11BrO4.

Chemistry is traditionally divided into organic and inorganic chemistry. The former is the study of compounds containing at least one carbon-hydrogen bonds. 3296-90-0, Name is Dibromoneopentyl Glycol, molecular formula is C5H10Br2O2, belongs to bromides-buliding-blocks compound, is a common compound. In a patnet, author is Chen, Niannian, once mentioned the new application about 3296-90-0, SDS of cas: 3296-90-0.

One-dimensional polymeric iodoplumbate hybrids with lanthanide complex cations: syntheses, crystal structures, and photoelectric and photocatalytic properties

New iodoplumbate hybrids with lanthanide complexes [La(DMF)(8)]Pb3I9 (1) and [Ln(DMF)(8)]Pb5I13 (Ln = Sm (2), Gd (3)) (DMF = N,N-dimethylformamide) were prepared using octakis complex cations [Ln(DMF)(8)](3+) formed in situ as structure directing agents by volatilizing at room temperature. The polymeric 1-D [Pb3I9](n)(3n-) anion in compound 1 is constructed by PbI6 octahedral units via face-sharing featuring a waved chain structure, while the 1-D [Pb5I13](n)(3n-) anion in 2 and 3 is composed of PbI6 units via both edge-sharing and face-sharing. The compounds 1-3 show steep band gaps at 3.02, 2.61, and 2.57 eV, respectively, indicating potential semiconducting properties. They exhibit catalytic activities in the photodegradation of organic pollutants like crystal violet (CV) and methylene blue (MB). Compounds 2 and 3 are more effective than 1 in the photocatalytic degradation of CV, which are related to their intensity of the photocurrent response. The photocurrent response, cyclic voltammetry measurements and photocatalytic mechanism investigation for compound 2 show that OH radical and h(+) hole are the main reactive species in the degradation experiment of CV.

We¡¯ll also look at important developments in the pharmaceutical industry because understanding organic chemistry is important in understanding health, medicine, 3296-90-0. The above is the message from the blog manager. SDS of cas: 3296-90-0.

In an article, author is Motamedi, Zahra, once mentioned the application of 143-15-7, Name is 1-Bromododecane, molecular formula is C12H25Br, molecular weight is 249.2309, MDL number is MFCD00000225, category is bromides-buliding-blocks. Now introduce a scientific discovery about this category, Application In Synthesis of 1-Bromododecane.

Combined Effects of Protocatechuic Acid and 5-Fluorouracil on p53 Gene Expression and Apoptosis in Gastric Adenocarcinoma Cells

Objectives: This study evaluated the combined effects of protocatechuic acid (PCA) and 5-fluorouracil (5-FU) on gastric adenocarcinoma (AGS) cells. Materials and Methods: The 3-(4,5-dimethylthiazol-2-yl)-2,5-diphenyltetrazolium bromide assay, colony formation assay, flow cytometry technique, real-time quantitative polymerase chain reaction, and Western blotting were used to investigate cytotoxic effects, colony formation, apoptosis, p53 gene expression, and Bcl-2 protein level in AGS cells treated with 5-FU and PCA. Results: Our results demonstrated that PCA (500 mu M) alone or in combination with 5-FU (10 mu M) inhibited AGS cell proliferation, inhibited a colony formation, and increased apoptosis compared with untreated control cells. Moreover, the combined 5-FU/PCA exposure led to upregulation of p53 and downregulation of Bcl-2 protein when compared to the untreated control cells. Conclusion: The results demonstrate that the combined 5-FU/PCA may promote antiproliferative and pro-apoptotic effects with the inhibition of colony formation in AGS cells. The mechanisms by which the combined 5-FU/PCA exposure exerts its effects are associated with upregulation of p53 gene expression and downregulation of Bcl-2 level. Therefore, the combination of 5-FU with PCA not only could be a promising approach to potentially reduce the dose requirements of 5-FU but also could promote apoptosis via p53 and Bcl-2 signaling pathways.

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A catalyst don’t appear in the overall stoichiometry of the reaction it catalyzes, Formula: C18H37Br, but it must appear in at least one of the elementary reactions in the mechanism for the catalyzed reaction. 112-89-0, Name is 1-Bromooctadecane, molecular formula is C18H37Br. In an article, author is Shull, Timothy E.,once mentioned of 112-89-0.

Inhibition of Fusarium oxysporum f. sp. nicotianae Growth by Phenylpropanoid Pathway Intermediates

Fusarium wilt in tobacco caused by the fungus Fusarium oxysporum f. sp. nicotianae is a disease-management challenge worldwide, as there are few effective and environmentally benign chemical agents for its control. This challenge results in substantial losses in both the quality and yield of tobacco products. Based on an in vitro analysis of the effects of different phenylpropanoid intermediates, we found that the early intermediates trans-cinnamic acid and para-coumaric acid effectively inhibit the mycelial growth of F. oxysporum f. sp. nicotianae strain FW316F, whereas the downstream intermediates quercetin and caffeic acid exhibit no fungicidal properties. Therefore, our in vitro screen suggests that trans-cinnamic acid and para-coumaric acid are promising chemical agents and natural lead compounds for the suppression of F. oxysporum f. sp. nicotianae growth.

If you¡¯re interested in learning more about 112-89-0. The above is the message from the blog manager. Formula: C18H37Br.

Chemistry is the experimental and theoretical study of materials on their properties at both the macroscopic and microscopic levels. 2635-13-4, Name is 5-Bromobenzo[d][1,3]dioxole, molecular formula is C7H5BrO2. In an article, author is Wu, Shuang,once mentioned of 2635-13-4, Name: 5-Bromobenzo[d][1,3]dioxole.

Thermodynamic modeling of the MBr-BaBr2 (M = Alkali metals) systems

The complete thermodynamic optimizations of MBr-BaBr2 (M = Li, Na, K, Rb, Cs) systems were performed based on thermodynamic principles using CALPHAD approach. In this work, the existence of BaBr2-based solid solubility was firstly evaluated according to the corresponding liquid curves in available literature by the limiting liquidus slope equation and ideal liquid curve. The liquid enthalpy of mixing for LiBr-BaBr2 binary system was calculated via empirical prediction method. The Gibbs energy of liquid molten mixtures were modeled by the substitutional solution model (SSM) and the associate solution model (ASM), while that of the double salts were processed into stoichiometric compounds based on the Neumann-Kopp technique. The thermodynamic database with a series of thermodynamic properties and phase equilibria data of investigated systems were successfully established by optimizing model parameters. The simulated results could provide theoretical guidance and technical support, as well as applying in the design for the multi-components eutectic materials by combination with the binary alkali metal bromide systems.

If you¡¯re interested in learning more about 2635-13-4. The above is the message from the blog manager. Name: 5-Bromobenzo[d][1,3]dioxole.