Month: October 2022

Yilmaz, Nadir; Atmanli, Alpaslan; Hall, Matthew J.; Vigil, Francisco M. published the artcile< Determination of the Optimum Blend Ratio of Diesel, Waste Oil Derived Biodiesel and 1-Pentanol Using the Response Surface Method>, Electric Literature of 112-63-0, the main research area is diesel waste oil biodiesel pentanol blend response surface method.

Higher alcs. can be included as a third component in biodiesel-diesel mixtures to improve fuel properties and reduce emissions. Determining the optimum concentrations of these fuels according to the purpose of engine use is important both environmentally and economically. In this study, eight different concentrations of diesel (D), waste oil derived biodiesel (WOB), and 1-pentanol (P) ternary mixtures were determined by the design of exptl. method (DOE). In order to determine the engine performance and exhaust emission parameters of these fuels, they were tested on a diesel engine with a constant load of 6 kW and a constant engine speed of 1800 rpm. Using the test results obtained, a full quadratic math. model with a 95% confidence level was created using the Response Surface Method (RSM) to predict five different output parameters (BSFC, BTE, CO, HC, and NOx) according to the fuel mixture ratios. The R2 accuracy values of the outputs were found at the reliability level. According to the criteria that BTE will be maximum and BSFC, CO, HC, and NOx emissions will be min., the optimization determined that the fuel mixture 79.09% D-8.33% WOB-12.58% P concentration (DWOBPopt) will produce the desired result. A low prediction error was obtained with the confirmation test. As a result, it is concluded that the optimized fuel can be an alternative to the commonly accepted B7 blend and can be used safely in diesel engines.

Energies (Basel, Switzerland) published new progress about Biodiesel fuel. 112-63-0 belongs to class esters-buliding-blocks, and the molecular formula is C19H34O2, Electric Literature of 112-63-0.

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

Bour, James R.; Kariofillis, Stavros K.; Sanford, Melanie S. published the artcile< Synthesis, Reactivity, and Catalytic Applications of Isolable (NHC)Cu(CHF2) Complexes>, SDS of cas: 112-63-0, the main research area is copper difluoromethyl carbene NHC complex preparation aryl electrophile difluoromethylation; difluoromethylation aryl iodide copper NHC catalyst; difluoromethyl copper NHC complex intermediate difluoromethylation aryl electrophile; crystal structure copper NHC difluoromethyl complex; mol structure copper NHC difluoromethyl complex.

Elusive copper difluoromethyl complexes [(NHC)CuCHF2] were prepared by difluoromethylation of alkoxides [(NHC)CuOR] with difluoromethylsilane reagent, TMSCHF2; they react with arene electrophiles to give difluoromethylated substitution products. Difluoromethyl copper complexes have been proposed as key intermediates in a variety of Cu-catalyzed difluoromethylation reactions. However, studies of these putative intermediates have been impeded by the low stability of these [Cu(CHF2)] species. This report describes the synthesis of isolable N-heterocyclic carbene ligated copper(I) difluoromethyl complexes. The stoichiometric reactions of these complexes with aryl electrophiles (i.e., diaryliodonium salts, aryl iodides, and aryl bromides) are described. In addition, N-heterocyclic carbene copper(I) species are demonstrated to serve as catalysts for the cross-coupling of aryl iodides with (difluoromethyl)trimethylsilane to afford difluoromethyl arene products.

Organometallics published new progress about Aryl bromides Role: RCT (Reactant), RACT (Reactant or Reagent). 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

Ye, Tingting; Chen, Rongrong; Zhou, Yu; Zhang, Juan; Zhang, Zhongqin; Wei, Hui; Xu, Yan; Wang, Yulan; Zhang, Yinlan published the artcile< Salvianolic acid A (Sal A) suppresses malignant progression of glioma and enhances temozolomide (TMZ) sensitivity via repressing transgelin-2 (TAGLN2) mediated phosphatidylinositol-3-kinase (PI3K) / protein kinase B (Akt) pathway>, Electric Literature of 112-63-0, the main research area is salvianolic acid temozolomide anticancer agent TAGLN2 PI3K Akt glioma; Glioma; Salvianolic acid A; TAGLN2/PI3K/akt pathway; Temozolomide.

Glioma originated from excessively proliferative and highly invaded glial cells is a common intracranial malignant tumor with poor prognosis. Resistance to temozolomide (TMZ) is a clin. challenge in glioma treatment due to the fact that chemoresistance remains a main obstacle in the improvement of drug efficacy. Salvianolic acid A (Sal A), originated from traditional Chinese herbal medicine Salvia miltiorrhiza, possesses anti-tumor effects and could facilitate the delivery of drugs to brain tumor tissues. In the present work, effects of Sal A on the viability, proliferation, migration, invasion and apoptosis of human glioma cell line U87 cells as well as influence of Sal A on TMZ resistance were measured, so as to identify the biol. function of Sal A in the malignant behaviors and chemoresistance of glioma cells. Addnl., activation of TAGLN2/PI3K/Akt pathway in glioma cells was also detected to investigate whether Sal A could regulate TAGLN2/PI3K/Akt to manipulate the progression of glioma and TMZ resistance. Results discovered that Sal A treatment reduced the viability, repressed the proliferation, migration and invasion of glioma cells as well as promoted the apoptosis of glioma cells. Besides, Sal A treatment suppressed TAGLN2/PI3K/Akt pathway in glioma cells. Sal A treatment strengthened the suppressing effect of TMZ on glioma cell proliferation and reinforced the promoting effect of TMZ on glioma cell apoptosis, which were abolished by upregulation of TAGLN2. To conclude, Sal A treatment could suppress the malignant behaviors of glioma cells and improve TMZ sensitivity through inactivating TAGLN2/PI3K/Akt pathway.

Bioengineered published new progress about Antitumor agents. 112-63-0 belongs to class esters-buliding-blocks, and the molecular formula is C19H34O2, Electric Literature of 112-63-0.

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

Kelderman, E.; Starmans, W. A. J.; van Duynhoven, J. P. M.; Verboom, W.; Engbersen, J. F. J.; Reinhoudt, D. N.; Derhaeg, L.; Verbiest, T.; Clays, K.; Persoons, A. published the artcile< Triphenylcarbinol Derivatives as Molecules for Second-Order Nonlinear Optics>, Reference of 112-63-0, the main research area is triarylcarbinol second order nonlinear optic; hyperpolarizability triarylcarbinol derivative; dipole moment triarylcarbinol derivative.

Novel tris D-π-A substituted triphenylcarbinol derivatives have been synthesized and studied for their mol. second-order nonlinear optical properties by elec. field induced second harmonic generation and hyper Rayleigh scattering (HRS). Compared to their Ph analogs with only one D-π-A system, the triphenylcarbinol derivatives I (R = NO2, R1 = H; R = CHO, R1 = Me) and II (R = CN, NO2) exhibit an increased hyperpolarizability (〈β〉HRS) without the undesired red-shift of the charge-transfer band. The dipole moments and hyperpolarizabilities depend on both the close proximity (3-4 Å) and the orientation of the three NLO-phore units. The nature of the acceptor substituent strongly influences the magnitude of the 〈β〉HRS values. I (R = NO2, R1 = H) exhibits a 〈β〉HRS value of 15 × 10-31 esu, which is almost the same as that of its reference compound, p-nitroanisole, whereas II (R = NO2) exhibits a 〈β〉HRS value of 338 × 10-30 esu, which is >3 times larger than that of its reference compound, 4-methoxy-4′-nitrostilbene.

Chemistry of Materials published new progress about Dipole moment. 112-63-0 belongs to class esters-buliding-blocks, and the molecular formula is C19H34O2, Reference of 112-63-0.

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

Bokhonov, B. B.; Burleva, L. P.; Frank, W. C.; Miller, J. R.; Mizen, M. B.; Sahyun, M. R. V.; Whitcomb, D. R.; Winslow, J. M.; Zou, C. published the artcile< Morphological regularities in the formation of silver halides during in situ halidization of silver stearate>, COA of Formula: C19H34O2, the main research area is silver stearate silver halide interface photog; photothermog silver stearate silver halide interface.

The results of an investigation of the sites of silver halide formation on the surface of silver carboxylate crystals, modeled by silver stearate and prepared by the standard in situ process used for thermally developed photog. materials, are reported. For the first time the structure of a silver halide/silver carboxylate interface has been clearly observed Silver bromide is found to form on the edges of the silver stearate crystal during the initial stages of the reaction. The influence of the nature of the halide source on the silver halide shape and location on the silver carboxylate crystal and the presence of defects in the silver halide crystals are discussed.

Journal of Imaging Science and Technology published new progress about Crystallization. 112-63-0 belongs to class esters-buliding-blocks, and the molecular formula is C19H34O2, COA of Formula: C19H34O2.

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

Bajj, Daniel N. F.; Tran, Michael V.; Tsai, Hsin-Yun; Kim, Hyungki; Paisley, Nathan R.; Algar, W. Russ; Hudson, Zachary M. published the artcile< Fluorescent Heterotelechelic Single-Chain Polymer Nanoparticles: Synthesis, Spectroscopy, and Cellular Imaging>, Quality Control of 71195-85-2, the main research area is fluorescent heterotelechelic single chain polymer nanoparticle synthesis cellular imaging.

The folding and collapse of individual polymer chains into single-chain polymer nanoparticles (SCPNs) is a versatile and emerging platform for biol. applications such as diagnostics, imaging, and therapy, where components for two or more of these functions can be combined onto a single polymer carrier. Here, we prepare heterotelechelic polymers with three sets of sep. addressable chem. handles at their α-terminus and ω-terminus, and along their backbone. As a model system, the α- and ω-termini are conjugated with a targeting ligand (folic acid or biotin) and therapeutic drug cargo (camptothecin), resp., and the backbone is grafted with pendant fluorescent dye mols., poly(ethylene glycol) oligomers, and benzene-1,3,5-tricarboxamide. These polymers fold in water to give fluorescent SCPNs, which are characterized with respect to their phys. and photophys. properties. The latter reveals a relationship between polymer folding, quantum yield, and resistance to photobleaching. The SCPNs are then shown to be useful for immunolabeling of SK-BR-3 breast cancer cells and exhibit little or no acute cytotoxicity. This work demonstrates that SCPNs can be used as a viable platform for bioconjugation and cell labeling, helps establish a set of design criteria for optimizing future biol. applications, and opens the door to the development of SCPNs for a broader range of theranostic applications.

ACS Applied Nano Materials published new progress about Biocompatible materials. 71195-85-2 belongs to class esters-buliding-blocks, and the molecular formula is C9H3F5O2, Quality Control of 71195-85-2.

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

Solhi, Laleh; Atai, Mohammad; Nodehi, Azizollah; Imani, Mohammad published the artcile< Poly (methacrylic acid) modified spherical and platelet hybrid nanoparticles as reinforcing fillers for dentin bonding systems: Synthesis and properties>, Category: esters-buliding-blocks, the main research area is PMA silica resin nanoparticle drug delivery platelet adhesion teeth; Dental adhesives; Graft polymerization; Nanoparticles; Shear bond strength; Surface modification.

In this study the mech. and adhesion properties of an exptl. methacrylate based dentin bonding system containing a combination of spherical and layered platelet nanoparticles were investigated. The nanoparticles were first modified through surface graft polymerization of methacrylic acid in order to make the particles surface compatible with the bonding matrix resin. Graft free radical polymerization in aqueous media was performed to attach Poly (methacrylic acid) (PMA) chains onto the surface of Na-MMT nanoclay (Cloisite Na+) and silica nanoparticles (Aerosil 200). The hybrid PMA grafted nanoparticles (PMA-g-NC-Sil) were characterized using GPC, FTIR, TGA, and X-ray diffraction (XRD). Dentin adhesives containing different amounts of the hybrid modified nanoparticles were photopolymerized and their characteristics were studied using FTIR, TEM, SEM, EDXA, and XRD techniques. The adhesives containing different amounts of PMA-g-NC-Sil were applied to the conditioned human premolar dentin to bond a dental composite to the teeth. The bond strength was then measured by microshear bond strength testing method. The results were analyzed and compared statistically. The stability of PMA-g-NC-Sil dispersion in the dentin adhesive was investigated using separation anal. (LUMi Reader) techniques. The grafting of PMA chains onto the surface of nanoclay was confirmed by FTIR and TGA anal. techniques. The intercalated-exfoliated structure for the nanoclay platelets in the photo-cured adhesive was observed using XRD and TEM. The surface modification of the nanoparticles significantly increased the dispersion stability of the fillers in the adhesive solution The microshear test results indicated that the incorporation of the PMA-g-NC-Sil nanoparticles significantly enhanced the bond strength to dentin with the highest shear bond strength observed at 0.5 wt%. The incorporation of the PMA modified hybrid nanofillers into the dentin adhesive resulted in a dentin bonding agent with enhanced shear bond strength through reinforcing the adhesive matrix and potential interactions between their carboxylic acid groups and the tooth structure. The dispersion stability of the nanoparticles was also dramatically improved by the surface modification of the nanoparticles.

Journal of the Mechanical Behavior of Biomedical Materials published new progress about Adhesion, physical. 3290-92-4 belongs to class esters-buliding-blocks, and the molecular formula is C18H26O6, Category: esters-buliding-blocks.

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

Modnikova, G. A.; Titkova, R. M.; Glushkov, R. G.; Sokolova, A. S.; Silin, V. A.; Chernov, V. A. published the artcile< Amine derivatives of pyrrolo[3,2-d]pyrimidines>, Name: (9Z,12Z)-Methyl octadeca-9,12-dienoate, the main research area is pyrrolopyrimidinamine derivative preparation structure pharmacol.

A series of 28 derivatives (I; R1 = Me, Cl, amino; R2 = Cl, amino; R3 = H, Ph; R4 = H, aminomethyl) was prepared by reactions of the chloro derivatives of pyrrolo[3,2-d]pyrimidines with an appropriate amine. Toxicity and antitumor, antibacterial, and antifungal activities of I were tested in mice, rats, and in vitro in cultures of Staphylococcus aureus, Escherichia coli, Microsporum canis, and Candida albicans. Most I had some antitumor activity against implanted sarcomas, melanomas, and carcinomas. No I was active against E. coli, M. canis, or C. albicans. Toxicity of I varied with LD50 = 50->500 mg/kg.

Khimiko-Farmatsevticheskii Zhurnal published new progress about Antitumor agents. 112-63-0 belongs to class esters-buliding-blocks, and the molecular formula is C19H34O2, Name: (9Z,12Z)-Methyl octadeca-9,12-dienoate.

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

Sugiyama, H.; Yokokawa, F.; Aoyama, T.; Shioiri, T. published the artcile< Synthetic studies of N-reverse prenylated indole. An efficient synthesis of antifungal indole alkaloids and N-reverse prenylated tryptophan>, Safety of (9Z,12Z)-Methyl octadeca-9,12-dienoate, the main research area is reverse prenylated indole preparation; antifungal alkaloid reverse prenylated tryptophan.

The efficient method for the synthesis of N-1,1-dimethyl-2-propenyl (reverse prenyl) indole was developed by the N-propargylation of the indoline, partial hydrogenation of the terminal alkyne, and oxidation to the indole using chem. manganese dioxide (CMD). This method was used for the synthesis of the antifungal indole alkaloids I, II, and N-reverse prenylated tryptophan.

Tetrahedron Letters published new progress about Fungicides. 112-63-0 belongs to class esters-buliding-blocks, and the molecular formula is C19H34O2, Safety of (9Z,12Z)-Methyl octadeca-9,12-dienoate.

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

Wang, Xiaosong; Yu, Xiaojun; Xu, Haoran; Wei, Kang; Wang, Shanxi; Wang, Yingguang; Han, Junfei published the artcile< Serum-derived extracellular vesicles facilitate temozolomide resistance in glioblastoma through a HOTAIR-dependent mechanism>, Recommanded Product: (9Z,12Z)-Methyl octadeca-9,12-dienoate, the main research area is .

Abstract: Extracellular vesicle (EV)-mediated transfer of long non-coding RNAs (lncRNAs) has been reported to regulate chemoresistance in various cancers. We herein investigate the therapeutic potential of bioinformatically identified HOTAIR transferred by serum-derived EVs (serum-EVs) in temozolomide (TMZ) resistance of glioblastoma (GBM) and the downstream mechanisms. EVs were isolated from the serum of GBM patients. Expression of HOTAIR was examined in the clin. tissue samples and serum-EVs of GBM patients. The downstream miRNAs of HOTAIR and its target genes were predicted in silico. The effects of the HOTAIR transmitted by serum-EVs in malignant phenotypes, tumor growth, and TMZ resistance were assessed in vitro and in vivo. HOTAIR expression was upregulated in clin. tissues, cells, and serum-EVs of GBM. Co-culture data showed that GBM-serum-EVs facilitated GBM cell proliferative and invasive phenotypes and TMZ resistance by elevating HOTAIR. In GBM cells, HOTAIR competitively bound to miR-526b-3p and weakened miR-526b-3p′s binding ability to EVA1, thus increasing the expression of EVA1. Furthermore, HOTAIR carried by serum-EVs promoted tumor growth and TMZ resistance in vivo by suppressing miR-526b-3p-mediated EVA1 inhibition. GBM-serum-EV-enclosed HOTAIR may augment GBM progression and chemoresistance through miR-526b-3p downregulation and EVA1 upregulation. These results provide a strategy to reduce TMZ resistance in GBM treatment.

Cell Death & Disease published new progress about 112-63-0. 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