Category: 109-64-8

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. 109-64-8, Name is 1,3-Dibromopropane, molecular formula is C3H6Br2. In an article, author is Wang, Xiaozhe,once mentioned of 109-64-8, SDS of cas: 109-64-8.

The thermal stability of FAPbBr(3) nanocrystals from temperature-dependent photoluminescence and first-principles calculations

The temperature dependence of FAPbBr(3) perovskite nanocrystals (PNCs) is investigated experimentally by steady-state and time-resolved photoluminescence (PL) spectroscopies. With the temperature increase, photon energies of line width and emission peak become larger due to stronger exciton-phonon coupling. Furthermore, theoretical calculations of first-principles simulations are used to estimate comparatively the thermal stability of typical FAPbBr(3) PNCs. It is found that the PL peaks of PNCs slightly change with increasing temperature below 175 K and then blueshift steeply decreases rapidly till 400 K, which is related to phase transition from orthorhombic to tetragonal and cubic phase. The simulated results show the PL and the crystal structure of FAPbBr(3) are largely dependent on the temperature. With higher temperature, the photon energy of the PL peak becomes larger, and the calculated band gap of FAPbBr(3) is about 2.15 eV at 80 K, which is in good agreement with the experimental results. It is confirmed that temperature-dependent PL is composed of a band-edge exciton state and trapping state emission. The results obtained will be of certain significance to further expand other hybrid organometal perovskite materials.

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109-64-8, Name is 1,3-Dibromopropane, molecular formula is C3H6Br2, Computed Properties of C3H6Br2, belongs to bromides-buliding-blocks compound, is a common compound. In a patnet, author is Zhang, Yujie, once mentioned the new application about 109-64-8.

Upregulation of lncRNA H19 promotes nasopharyngeal carcinoma proliferation and metastasis in let-7 dependent manner

The aim of this study is to analyse the expression status of long non-coding RNA (lncRNA) H19 in nasopharyngeal carcinoma and to unravel its oncogenic properties at molecular level. The abundance of H19, let-7a, b, g, i and HRAS was quantified by real-time PCR. Cell viability was measured by the 3-(4,5-dimethylthiazol-2-yl)-2,5-diphenyltetrazolium bromide method. Cell proliferation was evaluated by the cell counting. Cell migration and cell invasion were determined using transwell chamber and scattering colony formation. Tumour progression was monitored in xenograft tumour model and tail vein injection was adopted for lung metastasis assessment. Luciferase reporter assay was employed to interrogate the potential regulatory action of let-7 genes on H19 expression. The endogenous HRAS protein was quantified by western blotting. H19 was aberrantly over-expression in nasopharyngeal carcinoma, which intimately associated with poorer prognosis. H19-deficency significantly inhibited cell viability and suppressed cell proliferation. Furthermore, both migrative and invasive capacity were compromised by H19 knockdown. H19-silencing remarkably delayed xenograft tumour progression and lung metastasis. Mechanistically, H19 competitively sponged let-7 genes and therefore up-regulated HRAS, which consequently contributed to its oncogenic activity in nasopharyngeal carcinomas. Our study uncovered the oncogenic properties of H19 in nasopharyngeal carcinoma and highlighted the H19-let-7-HRAS signalling axis underlying the incidence and metastasis of this disease.

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In an article, author is Utami, Diah Tri, once mentioned the application of 109-64-8, Computed Properties of C3H6Br2, Name is 1,3-Dibromopropane, molecular formula is C3H6Br2, molecular weight is 201.8877, MDL number is MFCD00000255, category is bromides-buliding-blocks. Now introduce a scientific discovery about this category.

Co-treatment of Brazilein Enhances Cytotoxicity of Doxorubicin on WiDr Colorectal Cancer Cells Through Cell Cycle Arrest

BACKGROUND: The presence of adverse side effects limits the use of doxorubicin (Dox) despite its cost-effectiveness compared to other chemotherapeutic agents. Brazilein (Be), the major compound of Caesalpinia sappan, performs co-chemotherapeutic potency in several cancer cell lines. This study evaluates the chemosensitizing effects of Be to Dox on colon cancer cell line, WiDr. METHODS: The 3-(4,5-dimethy Ithiazol-2-yl)-2,5-diphenyl-2H-tetrazolirun bromide (MTT) assay was conducted to evaluate the cytotoxic effect of Be and its combination with Dox. The synergistic effect of Be and Dox was examined by using the Combination index (CI) parameter. Cell cycle and apoptosis profiles were done using flow cytometry with propidium iodide (PI)/RNase and Anncxin V staining, respectively. RESULTS: The combination of Dox and Be at half of IC(50 )on WiDr cells showed a synergistic effect with a combination index of 0.4. Analysis of the cell cycle revealed that the combination caused cell cycle termination at the S and G2/M phase. This finding corresponded with the data that single treatment of Dox and Be induced cell cycle arrest at the different phases, namely S and G2/M phase, respectively. However, the combination treatment for 24 hours did not induce apoptosis. This combination should be further clarified as there was a possibility that many cells may underwent permanently arrest that halts to proceed apoptosis. CONCLUSION: Our findings suggested that Be synergizes with Dox to suppress the growth of WiDr cells via cell cycle arrest, hence, Be is potential to be developed as a co-chemotherapeutic agent. Our findings suggested that Be synergizes with Dox to suppress the growth of WiDr cells via cell cycle arrest, hence, Be is potential to be developed as a co-chemotherapeutic agent.

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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, 109-64-8, Name is 1,3-Dibromopropane, SMILES is BrCCCBr, in an article , author is Yang, Jingshuai, once mentioned of 109-64-8, Name: 1,3-Dibromopropane.

Dual cross-linked polymer electrolyte membranes based on poly(aryl ether ketone) and poly(styrene-vinylimidazole-divinylbenzene) for high temperature proton exchange membrane fuel cells

One critical issue to phosphoric acid (PA) doped high-temperature proton exchange membranes (HT-PEMs) is to balance the proton conductivity and mechanical properties for overall application performance in fuel cells. Addressing the issue, we prepare durable HT-PEMs having the dual crosslinking structure by employing poly (vinylimidazole-divinylbenzene-styrene) (poly(VIm-DVB-St)) copolymer as a crosslinker and using the poly (aromatic ether ketone) (PAEK) polymer containing four methyl groups as the host membrane matrix. The imidazole groups of poly(VIm-DVB-St) react with benzyl bromide groups of brominated PAEK for both the primary cross-linking network and high PA doping. The divinylbenzene crosslinked poly (styrene-co-vinylimidazole) network generates the secondary cross-linking structure. The formed reticular polymer chain structure brings on low swelling and high mechanical strength of the HT-PEMs. The fuel cell based on the acid doped PAEK41-85%VIm/233.0 PA shows a H-2-air fuel cell peak power density of 306 mW cm(-2) at 200 degrees C without back pressure, and a low degradation rate of 3.9 x 10(-5) V h(-1) during a period of 600 h under a constant current density of 200 mA cm(-2) at 160 degrees C.

Interested yet? Read on for other articles about 109-64-8, you can contact me at any time and look forward to more communication. Name: 1,3-Dibromopropane.

The reaction rate of a catalyzed reaction is faster than the reaction rate of the uncatalyzed reaction at the same temperature. 109-64-8, Name is 1,3-Dibromopropane, SMILES is BrCCCBr, in an article , author is Wang, Xinyang, once mentioned of 109-64-8, Recommanded Product: 109-64-8.

Modeling Gas-Liquid Interfaces by Dissipative Particle Dynamics: Adsorption and Surface Tension of Cetyl Trimethyl Ammonium Bromide at the Air-Water Interface

Adsorption of surfactants at gas-liquid interfaces that causes reduction in the surface tension is a classical problem in colloid and interface science with multiple practical applications in oil and gas recovery, separations, cosmetics, personal care, and biomedicine. Here, we develop an original coarse-grained model of the liquid-gas interface within the conventional dissipative particle dynamics (DPD) framework with the goal of quantitatively predicting the surface tension in the presence of surfactants. As a practical case-study example, we explore the adsorption of the cationic surfactant cetyl trimethyl ammonium bromide (CTAB) on the air-water interface. The gas phase is modeled as a DPD fluid composed of fictitious hard-core gas beads with exponentially decaying repulsive potentials to prevent penetration of the liquid phase components. A rigorous parametrization scheme is proposed based on matching the bulk and interfacial properties of water and octane taken as the reference compounds. Quantitative agreement between the simulated and experimental surface tension of CTAB solutions is found for a wide range of bulk surfactant concentrations (similar to 10(-3) to similar to 1 mmol/L) with the reduction of the surface tension from , similar to 72 mN/m (pure water) to the limiting value of similar to 37.5 mN/m at the critical micelle concentration. The gas phase DPD model with the proposed parametrization scheme can be extended and applied to modeling various gas-liquid interfaces with surfactant and lipid monolayers, such as bubble suspensions, foams, froths, etc.

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In an article, author is Banerjee, Prajna Paramita, once mentioned the application of 109-64-8, Name is 1,3-Dibromopropane, molecular formula is C3H6Br2, molecular weight is 201.8877, MDL number is MFCD00000255, category is bromides-buliding-blocks. Now introduce a scientific discovery about this category, Safety of 1,3-Dibromopropane.

Cytotoxic effect of graphene oxide-functionalized gold nanoparticles in human breast cancer cell lines

As the global burden of cancer is on the rise it is essential to develop alternate therapeutics that confer zero or minimum side effects. In this experiment, we evaluated the anticancer efficacy of graphene oxide-functionalized gold nanoparticles (GO-AuNPs) in human breast cancer cell lines MCF7 and MDA-MB-231. MTT assay revealed a dose-dependent decline in cancer cell survival. Significant alterations were detected in normal cellular morphology after treatment. Two different cell staining methods viz. acridine orange-ethidium bromide staining and annexin-cy3.18/6-carboxyfluorescein diacetate staining confirmed that the GO-AuNPs rendered their detrimental effect in cancer cells through apoptosis. To decipher the mode of apoptosis Western blotting was performed in which expression pattern of several proteins (PARP1, P53, P21, Bcl2, Bax, Caspase 9 and Caspase 3) established the intrinsic apoptosis pathway in these cell lines after GO-AuNP exposure. Intracellular calcium level, as measured by energy dispersive X-ray fluorescence analysis, was present at non-detectable level following treatment that can be linked to the cell cycle arrest and apoptotic cell death in them. Thus, GO-AuNPs were found effective in both types of human breast cancer cells viz. hormone-responsive MCF7 and chemoresistant MDA-MB-231 and can be considered as a highly potential anticancer agent in breast cancer therapy.

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Enzymes are biological catalysts that produce large increases in reaction rates and tend to be specific for certain reactants and products, Computed Properties of C3H6Br2, 109-64-8, Name is 1,3-Dibromopropane, molecular formula is C3H6Br2, belongs to bromides-buliding-blocks compound. In a document, author is Zhen, Kunkun, introduce the new discover.

Flotation Performance of Low-rank Coal in the Presence of Cetyltrimethyl Ammonium Bromide

The flotation enhancement mechanism and flotation kinetics of low-rank coal in the presence of cetyltrimethyl ammonium bromide (CTAB) were investigated. The contact angle of the coal sample increased by 46.07% and the attachment time between coal particles and a single air bubble decreased by 85.79% with increasing the concentrations of CTAB from 0 to 1 x 10(-4) M. Low concentrations of CTAB enhanced the flotation performance of low-rank coal, and the concentrate yield significantly increased by up to 8.59 percentage points with increasing the concentrations of CTAB from 0 to 1 x 10(-5) M at the cost of a lower increase in the ash content. However, the selectivity was reduced at high CTAB concentrations (5 x 10(-5) M and 10(-4) M). Six kinetic flotation models were employed to fit the flotation test data using the 1stOpt analysis software; the flotation rate constant (k), the maximum combustible recovery (epsilon (infinity)), the correlation coefficient (R (2)) and the modified flotation rate constant (k (m)) were calculated. Most models showed that the modified rate constant and the maximum combustible recovery of low-rank coal increased with the increasing concentrations of CTAB.

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 109-64-8. Computed Properties of C3H6Br2.

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, 109-64-8, Name is 1,3-Dibromopropane, SMILES is BrCCCBr, in an article , author is Long, Bendan, once mentioned of 109-64-8, Name: 1,3-Dibromopropane.

LncRNA XIST protects podocyte from high glucose-induced cell injury in diabetic nephropathy by sponging miR-30 and regulating AVEN expression

Diabetic nephropathy (DN) is one of the most important complications of diabetes mellitus. Thus, it is urgent to develop a novel diagnosis or therapeutic strategy that could suspend DN progression. Moreover, there is increasing evidence demonstrating that long non-coding RNA (lncRNA) acts as critical players in regulating autophagy and are involved in DN. We demonstrated that lncRNA X-inactive specific transcript (XIST) was downregulated in high glucose (HG) treated podocytes, accompanied by increased apoptosis of podocytes. Overexpression of XIST significantly reduced the apoptosis and promoted the number of viable cells of podocyte under HG treatment. Prediction by Targets can and dual-luciferase reporter assay revealed the interaction between miR-30 and XIST and AVEN. Further WB (Western Blot), MTT (3-(4,5-dimethylthiazol-2-yl)-2,5-diphenyltetrazolium bromide), and flow cytometry confirmed that XIST could reverse the expression of AVEN and ameliorate HG-induced apoptosis. In conclusion, our research revealed that XIST plays a protective effect on podocyte injury induced by HG through miR-30/AVEN axis.

But sometimes, even after several years of basic chemistry education, it is not easy to form a clear picture on how they govern reactivity! 109-64-8, you can contact me at any time and look forward to more communication. Name: 1,3-Dibromopropane.

Related Products of 109-64-8, Catalysts allow a reaction to proceed via a pathway that has a lower activation energy than the uncatalyzed reaction. 109-64-8, Name is 1,3-Dibromopropane, SMILES is BrCCCBr, belongs to bromides-buliding-blocks compound. In a article, author is Kumar, Vikas, introduce new discover of the category.

LiBr-catalyzed one-pot three-component domino strategy toward the construction of beta-phosphonomalonates scaffolds in aqueous conditions

LiBr-mediated domino Knoevenagel-phospha-Michael strategy has been established for the synthesis of beta-phosphonomalonates under aqueous conditions. It is noteworthy that the developed protocol is effective with a wide range of aldehydes to deliver a diverse range of beta-phosphonomalonates in good to excellent yields. The mild reaction conditions, easier procedure, use of aqueous media, inexpensive and water tolerant property of LiBr are important advantages of this protocol.

Related Products of 109-64-8, 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 109-64-8 is helpful to your research.

Synthetic Route of 109-64-8, Catalysts allow a reaction to proceed via a pathway that has a lower activation energy than the uncatalyzed reaction. 109-64-8, Name is 1,3-Dibromopropane, SMILES is BrCCCBr, belongs to bromides-buliding-blocks compound. In a article, author is Hem, Sophon, introduce new discover of the category.

Supramolecular Solvent-Based Liquid Phase Microextraction Combined with Ion-Pairing Reversed-Phase HPLC for the Determination of Quats in Vegetable Samples

In this study, we used anion supramolecular solvent (SUPRAS) prepared from a mixture of an anionic surfactant, sodium dodecyl sulfate (SDS), and a cationic surfactant, tetrabutylammonium bromide (TBABr), as the extraction solvent in liquid phase microextraction (LPME) of paraquat (PQ) and diquat (DQ). The enriched PQ and DQ in the SUPRAS phase were simultaneously analyzed by ion-pairing reversed-phase high performance liquid chromatography. PQ and DQ were successfully extracted by LPME via electrostatic interaction between the positive charge of the quats and the negative charge of SUPRAS. PQ, DQ, and ethyl viologen (the internal standard) were separated within 15 min on a C18 column, with the mobile phase containing 1-dodecanesulfonic acid and triethylamine, via UV detection. The optimized conditions for the extraction of 10 mL aqueous solution are 50 mu L of SUPRAS prepared from a mixture of SDS and TBABr at a mole ratio of 1:0.5, vortexed for 10 s at 1800 rpm, and centrifugation for 1 min at 3500 rpm. The obtained enrichment factors were 22 and 26 with limits of detection of 1.5 and 2.8 mu g L-1 for DQ and PQ, respectively. The precision was good with relative standard deviations less than 3.86%. The proposed method was successfully applied for the determination of PQ and DQ in vegetable samples and recoveries were found in the range of 75.0% to 106.7%.

Synthetic Route of 109-64-8, 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 109-64-8.