Tag: M.W=250-300

Gomez Rodriguez, Alexia; Talamonti, Emanuela; Naudi, Alba; Kalinovich, Anastasia V.; Pauter, Anna M.; Barja, Gustavo; Bengtsson, Tore; Jacobsson, Anders; Pamplona, Reinald; Shabalina, Irina G. published the artcile< Elovl2-Ablation Leads to Mitochondrial Membrane Fatty Acid Remodeling and Reduced Efficiency in Mouse Liver Mitochondria>, SDS of cas: 112-63-0, the main research area is Elovl2 mitochondrial membrane fatty acid liver oxidative stress; adenine nucleotide translocase; docosahexaenoic acid (DHA) deficiency; membrane permeabilization; mitochondrial function; oxidative damage markers; polyunsaturated fatty acids.

The fatty acid elongase elongation of very long-chain fatty acids protein 2 (ELOVL2) controls the elongation of polyunsaturated fatty acids (PUFA) producing precursors for omega-3, docosahexaenoic acid (DHA), and omega-6, docosapentaenoic acid (DPAn-6) in vivo. Expectedly, Elovl2-ablation drastically reduced the DHA and DPAn-6 in liver mitochondrial membranes. Unexpectedly, however, total PUFAs levels decreased further than could be explained by Elovl2 ablation. The lipid peroxidation process was not involved in PUFAs reduction since malondialdehyde-lysine (MDAL) and other oxidative stress biomarkers were not enhanced. The content of mitochondrial respiratory chain proteins remained unchanged. Still, membrane remodeling was associated with the high voltage-dependent anion channel (VDAC) and adenine nucleotide translocase 2 (ANT2), a possible reflection of the increased demand on phospholipid transport to the mitochondria. Mitochondrial function was impaired despite preserved content of the respiratory chain proteins and the absence of oxidative damage. Oligomycin-insensitive oxygen consumption increased, and coefficients of respiratory control were reduced by 50%. The mitochondria became very sensitive to fatty acid-induced uncoupling and permeabilization, where ANT2 is involved. Mitochondrial volume and number of peroxisomes increased as revealed by transmission electron microscopy. In conclusion, the results imply that endogenous DHA production is vital for the normal function of mouse liver mitochondria and could be relevant not only for mice but also for human metabolism

Nutrients published new progress about ADP-ATP translocases Role: BSU (Biological Study, Unclassified), BIOL (Biological Study). 112-63-0 belongs to class esters-buliding-blocks, and the molecular formula is C19H34O2, SDS of cas: 112-63-0.

Referemce:
Ester – Wikipedia,
Ester – an overview | ScienceDirect Topics

Chang, C.-Y.; Kashale, A. A.; Lee, C.-M.; Chu, S.-L.; Lin, Y.-F.; Chen, I-W. P. published the artcile< Single atomically anchored iron on graphene quantum dots for a highly efficient oxygen evolution reaction>, Formula: C19H34O2, the main research area is dinitrosyl iron graphene quantum dot oxygen evolution reaction electrocatalyst.

The single-atom catalysts (SACs) supported on carbon-based materials are very promising for maximizing their electrocatalytic activity. However, carbon-based SACs are primarily bonded with carbons, resulting in inferior performance in the oxygen evolution reaction (OER). Herein, we develop a novel coordination adsorption strategy for the synthesis of a monodispersed Fe(NO)2 moiety anchored on the nitrogen sites of the nitrogen-doped graphene quantum dots (N-GQDs) to form a Fe(NO)2-N-GQDs complex as an efficient OER catalyst. The resultant Fe(NO)2-N-GQDs complex exhibits a highly stable overpotential of 270 mV at a c.d. of 10 mA cm-2 and a Tafel slope of 48 mV dec-1 together with long-term durability, which greatly outperforms the state-of-the-art ruthenium oxide. Our finding emphasizes the role of electron-transfer resistance changes during a simple synthesis method to enhance electrocatalytic efficiency. Therefore, this work will envision numerous opportunities for creating novel-type carbon-based SACs via nitrogen-metal coordination as highly robust OER catalysts.

Materials Today Energy published new progress about Current density. 112-63-0 belongs to class esters-buliding-blocks, and the molecular formula is C19H34O2, Formula: C19H34O2.

Referemce:
Ester – Wikipedia,
Ester – an overview | ScienceDirect Topics

Ma, Yirui; Jin, Tianwei; Choudhury, Rishav; Cheng, Qian; Miao, Yupeng; Zheng, Changxi; Min, Wei; Yang, Yuan published the artcile< Understanding the correlation between lithium dendrite growth and local material properties by machine learning>, Quality Control of 112-63-0, the main research area is lithium metal battery dendrite growth neural network machine learning.

Lithium metal batteries are attractive for next-generation energy storage because of their high energy d. A major obstacle to their commercialization is the uncontrollable growth of lithium dendrites, which arises from complicated but poorly understood interactions at the electrolyte/electrode interface. In this work, we use a machine learning-based artificial neural network (ANN) model to explore how the lithium growth rate is affected by local material properties, such as surface curvature, ion concentration in the electrolyte, and the lithium growth rates at previous moments. The ion concentration in the electrolyte was acquired by Stimulated Raman Scattering Microscopy, which is often missing in past exptl. data-based modeling. The ANN network reached a high correlation coefficient of 0.8 between predicted and exptl. values. Further sensitivity anal. based on the ANN model demonstrated that the salt concentration and concentration gradient, as well as the prior lithium growth rate, have the highest impacts on the lithium dendrite growth rate at the next moment. This work shows the potential capability of the ANN model to forecast lithium growth rate, and unveil the inner dependency of the lithium dendrite growth rate on various factors.

Journal of the Electrochemical Society published new progress about Battery electrodes. 112-63-0 belongs to class esters-buliding-blocks, and the molecular formula is C19H34O2, Quality Control of 112-63-0.

Referemce:
Ester – Wikipedia,
Ester – an overview | ScienceDirect Topics

Guo, Yong; Hou, Enhua; Ma, Nannan; Liu, Zhiyan; Fan, Jiangping; Yang, Ruige published the artcile< Discovery, biological evaluation and docking studies of novel N-acyl-2-aminothiazoles fused (+)-nootkatone from Citrus paradisi Macf. as potential α-glucosidase inhibitors>, Computed Properties of 112-63-0, the main research area is nootkatone aminothiazole synthesis antidiabetic cytotoxicity glucosidase diabetes; (+)-Nootkatone; Cytotoxicity; Molecular docking; Thiazole; Type-2 diabetes; α-Glucosidase inhibitor.

Nowadays, the discovery and development of α-glucosidase inhibitors from natural products or their derivatives represents an attractive approach. Here we reported studies on a series of novel N-acyl-2-aminothiazoles fused (+)-nootkatone and evaluation for their α-glucosidase inhibitory activities. Most of (+)-nootkatone derivatives exhibited more potent α-glucosidase inhibitory ability than the pos. drug acarbose. In particular, compounds I and II showed the most promising α-glucosidase inhibitory ability with IC50 values of 13.2 and 13.8 μM. I and II also exhibited relatively low cytotoxicities towards normal LO2 cells. Kinetic study indicated that compounds I and II inhibited the α-glucosidase in a noncompetitive manner, and mol. docking results were in line with the noncompetitive characteristics that I and II did not bind to the known active sites (Asp214, Glu276 and Asp349). Based on our findings, these (+)-nootkatone derivatives could be used as antidiabetic candidates.

Bioorganic Chemistry published new progress about Antidiabetic agents. 112-63-0 belongs to class esters-buliding-blocks, and the molecular formula is C19H34O2, Computed Properties of 112-63-0.

Referemce:
Ester – Wikipedia,
Ester – an overview | ScienceDirect Topics

Dang, Guohui; Li, Tianrun; Yang, Dongmin; Yang, Guangxin; Du, Xing; Yang, Juan; Miao, Yutong; Han, Lulu; Ma, Xiaolong; Song, Yuwei; Liu, Bo; Li, Xuan; Wang, Xian; Feng, Juan published the artcile< T lymphocyte-derived extracellular vesicles aggravate abdominal aortic aneurysm by promoting macrophage lipid peroxidation and migration via pyruvate kinase muscle isozyme 2>, Product Details of C15H22N2O2, the main research area is abdominal aorta aneurysmT lymphocyte macrophage dell migration glycolysis; Abdominal aortic aneurysm; Extracellular vesicles; Lipid peroxidation; Macrophage migration; Pyruvate kinase muscle isozyme 2.

T lymphocyte and macrophage infiltration in the aortic wall is critical for abdominal aortic aneurysm (AAA). However, how T lymphocytes interact with macrophages in the pathogenesis of AAA remains largely uncharacterized. In an elastase-induced murine AAA model, we first found that the expression of pyruvate kinase muscle isoenzyme 2 (PKM2), the last rate-limiting enzyme in glycolysis, was increased in infiltrated T lymphocytes of vascular lesions. T lymphocyte-specific PKM2 deficiency in mice (LckCrePKM2fl/fl) or i.p. administration of the sphingomyelinase inhibitor GW4869 caused a significant attenuation of the elastase-increased aortic diameter, AAA incidence, elastic fiber disruption, matrix metalloproteinases (MMPs) expression, and macrophage infiltration in the vascular adventitia compared with those in PKM2fl/fl mice. Mechanistically, extracellular vesicles (EVs) derived from PKM2-activated T lymphocytes elevated macrophage iron accumulation, lipid peroxidation, and migration in vitro, while macrophages treated with EVs from PKM2-null T lymphocytes or pretreated with the lipid peroxidation inhibitors ferrostatin-1 (Fer-1), liproxstatin-1 (Lip-1), or the iron chelating agent deferoxamine mesylate (DFOM) reversed these effects. In vascular lesions of elastase-induced LckCrePKM2fl/fl mice with AAA, the oxidant system weakened, with downregulated 4-hydroxynonenal (4-HNE) levels and strengthened antioxidant defense systems with upregulated glutathione peroxidase 4 (GPX4) and cystine/glutamate antiporter solute carrier family 7 member 11 (Slc7a11) expressions in macrophages. High-throughput metabolomics showed that EVs derived from PKM2-activated T lymphocytes contained increased levels of polyunsaturated fatty acid (PUFA)-containing phospholipids, which may provide abundant substrates for lipid peroxidation in target macrophages. More importantly, upregulated T lymphocyte PKM2 expression was also found in clin. AAA subjects, and EVs isolated from AAA patient plasma enhanced macrophage iron accumulation, lipid peroxidation, and migration ex vivo. Therefore, from cell-cell crosstalk and metabolic perspectives, the present study shows that PKM2-activated T lymphocyte-derived EVs may drive AAA progression by promoting macrophage redox imbalance and migration, and targeting the T lymphocyte-EV-macrophage axis may be a potential strategy for early warning and treating AAA.

Redox Biology published new progress about Abdominal aorta aneurysm. 347174-05-4 belongs to class esters-buliding-blocks, and the molecular formula is C15H22N2O2, Product Details of C15H22N2O2.

Referemce:
Ester – Wikipedia,
Ester – an overview | ScienceDirect Topics

Jiang, Shangxu; Li, Wenbiao; Xie, Yuan; Yan, Xiaoqing; Zhang, Kai; Jia, Zhongfan published the artcile< An All-Organic battery with 2.8 V output voltage>, HPLC of Formula: 112-63-0, the main research area is anthraquinone carbon nanotube nitroxide radical coupling organic battery.

Fully organic batteries have been recognized as ideal alternatives to traditional metal-based energy storage devices. However, significant challenges remain in mitigating their low cell voltage and capacity. Here, we construct an all-organic battery based on TEMPO (i.e., 2,2,6,6-tetramethylpiperidyl-1-oxy) radical polymer cathode, poly(TEMPO methacrylate) (PTMA), and conjugated dicarboxylate anode such as silver terephthalate (Ag2TP). Chem. modification of PTMA with aromatic anthraquinone (AQ) results in P(TMA0.95-co-AQ0.05)1610, in which AQ groups facilitate the mol. level binding to CNTs through non-covalent π-π interaction and enhance the charge and mass transport. This fully organic battery delivers a capacity of 182 mAh g-1 based on the anode at 0.5C with an output voltage of 2.8 V. Although the capacity needs further improvement, our work shows the promise of developing high-voltage, fully organic batteries with a judicious electrode design.

Chemical Engineering Journal (Amsterdam, Netherlands) published new progress about Battery capacity. 112-63-0 belongs to class esters-buliding-blocks, and the molecular formula is C19H34O2, HPLC of Formula: 112-63-0.

Referemce:
Ester – Wikipedia,
Ester – an overview | ScienceDirect Topics

Jitian, Simion published the artcile< The spectrophotometric determination of pyrene dyes in pharmaceuticals and cosmetics>, Recommanded Product: (9Z,12Z)-Methyl octadeca-9,12-dienoate, the main research area is spectrophotometry pyrene dye pharmaceuticals cosmetics.

The paper introduces a method used for the determination of the component concentrations of a ternary mixture of pyrene dyes. The method uses the zero-order spectra of these dyes in the spectral range 190[÷]500 nm. It is based on a combination of the determinant method (Cramer’s method) with information on the absorption bands of the dyes in the mixture The method is applied using the slope and intercept values from the linear calibration curves of the pyrene dyes standard solutions: HP3S, P3S and P4S, at three different wavelengths: The three wavelengths: 290nm, 367nm and 375nm, were selected by means of the Kaiser method. When there is a spectral region in which only one of the components has absorption, the concentration can be determined independently of the presence of the other two dyes in the ternary mixture The method used to determine the concentrations of the other two dyes was the Cramer method or the bivariate spectral calibration method (BSC) that solves a system of two equations with two unknowns.

Annals of the Faculty of Engineering Hunedoara published new progress about Cosmetics and Personal care products. 112-63-0 belongs to class esters-buliding-blocks, and the molecular formula is C19H34O2, Recommanded Product: (9Z,12Z)-Methyl octadeca-9,12-dienoate.

Referemce:
Ester – Wikipedia,
Ester – an overview | ScienceDirect Topics

Yue, Bin; Wang, Yangang; Zhang, Chunxia; Ding, Yunlong; Liu, Zhipeng published the artcile< Efficacy of Shaobei injection in the treatment of grade II-III hemorrhoids and the effect on fibulin protein expression: A study protocol of a randomized controlled trial>, Category: esters-buliding-blocks, the main research area is Shaobei injection hemorrhoid fibulin protein expression.

Hemorrhoids are a common and seriously disruptive condition that seriously affects people’s lives in terms of treatment. Injection therapy is an effective minimally invasive scheme for the treatment of grade II-III hemorrhoids, but its clin. application is limited by the adverse reactions caused by injection drugs. Some clin. studies have confirmed the efficacy and safety of Shaobei injection as a traditional Chinese medicine extract However, there is no standard randomized controlled study to verify its efficacy and explore its potential mechanism. This is a prospective, randomized, single blind, parallel controlled trial to study the efficacy of Shaobei injection in the treatment of grade II-III hemorrhoids and its effect on the expression of fibulin-3 and fibulin-5 in fibulin protein family. The patients will be randomly divided into a treatment group and control group. The treatment group will be treated with Shaobei injection, and the control group will be treated with rubber band ligation. The observation indexes include: visual anal. scale, postoperative hospital stay, total use of painkillers, fibulin-3 and fibulin-5, hemorrhoids recurrence, and adverse events. Finally, the data will be statistically analyzed by SPASS 18.0 software. This study will compare the efficacy ofShaobei injection with the rubber band ligation method in the treatment of grade II-III hemorrhoids and investigate its effect on the expression of fibulin-3 and fibulin-5 in the fibulin protein family. The results of this study will provide a basis for the clin. use of Paeoniflora injection as an alternative to traditional sclerosing agent in the treatment of grade II-III hemorrhoids.

Medicine (Philadelphia, PA, United States) published new progress about Analgesics. 112-63-0 belongs to class esters-buliding-blocks, and the molecular formula is C19H34O2, Category: esters-buliding-blocks.

Referemce:
Ester – Wikipedia,
Ester – an overview | ScienceDirect Topics

Sun, Xiaolong; Wang, Xu; Zhao, Zhenyu; Chen, Jing; Li, Cheng; Zhao, Gang published the artcile< Paeoniflorin inhibited nod-like receptor protein-3 inflammasome and NF-κB-mediated inflammatory reactions in diabetic foot ulcer by inhibiting the chemokine receptor CXCR2>, Category: esters-buliding-blocks, the main research area is chemokine receptor diabetic foot ulcer inflammation paeoniflorin wound healing; chemokine receptor CXCR2; diabetic foot ulcer; inflammation; paeoniflorin; wound healing.

Diabetic foot ulcer (DFU) is an invariably common complication of diabetes, characterized by delayed wound healing process and increased inflammation. Evidence has indicated that paeoniflorin exerts an anti-inflammatory effect in diabetic retinopathy. The current work was aimed to investigate the effect of paeoniflorin on inflammation and wound healing in DFU. DFU rat models by streptozotocin and skin biopsy punch, as well as high glucose-treated human immortalized keratinocytes (HaCaT) were established. Levels of blood glucose, wound contraction and proinflammatory cytokine were detected after paeoniflorin administration. Several essential targets associated with the NF-κB and Nod-like receptor protein-3 (NLRP3) signaling pathways were examined Results showed markedly down-regulation of interleukin (IL)-1β IL-18 and tumor necrosis factor-alpha in paeoniflorin-treated DFU rats. Paeoniflorin decreased the expression levels of chemokine receptor CXCR2, nuclear NF-κB and p-IκB (Ser36), as well as increased IκB level. Histol. anal. and immunostaining showed lower inflammatory cells with decreased NLRP3 and cleaved caspase-1 levels following paeoniflorin treatment. Further in vitro evidence confirmed that paeoniflorin efficiently inhibited NLRP3 and NF-κB-mediated inflammation in DFU by inhibiting CXCR2. These findings are suggestive of greatly attenuated wound inflammation and better wound healing in paeoniflorin-treated DFU rats. Our study demonstrates that paeoniflorin is a potential therapeutic agent for DFU.

Drug Development Research published new progress about Anti-inflammatory agents. 112-63-0 belongs to class esters-buliding-blocks, and the molecular formula is C19H34O2, Category: esters-buliding-blocks.

Referemce:
Ester – Wikipedia,
Ester – an overview | ScienceDirect Topics

Wang, Y.; Tam, W.; Stevenson, S. H.; Clement, R. A.; Calabrese, J. published the artcile< New organic nonlinear optical materials of stilbene and diphenylacetylene derivatives>, SDS of cas: 112-63-0, the main research area is second harmonic generation nonlinear stilbene; phenylacetylene nonlinear second harmonic generation; mol polarizability nonlinear stilbene derivative; optical material nonlinear stilbene diphenylacetylene; polymorphism nonlinear stilbene diphenylacetylene.

A series of new optically non-linear organic mols. of stilbene and diphenylacetylene derivatives were examined to determine their powder 2nd-harmonic generation efficiency and, in certain cases, the 2nd-order mol. polarizability, β. This series of mols. is characterized by very large non-linearity, high probability of forming non-centrosym. crystal effective mols., and polymorphism. A number of weaker donors (MeO, Br, I) have been identified as effective moieties to enhance the intrinsic mol. non-linearity. Using weak donors to prepare highly non-linear optical materials provides advantages of having better optical transparency and high probability of forming acentric structures.

Chemical Physics Letters published new progress about Optical hyperpolarizability. 112-63-0 belongs to class esters-buliding-blocks, and the molecular formula is C19H34O2, SDS of cas: 112-63-0.

Referemce:
Ester – Wikipedia,
Ester – an overview | ScienceDirect Topics