Author: tianli

Vasanthi, T. published the artcileExperimental observation of induced thermochromic effect and nematic defects in hydrogen bonded liquid crystals, Application of 2,2′-Oxydiacetic acid, the main research area is hydrogen bond crystal temperature band gap energy.

Hydrogen bonded liquid crystal mixtures are derived from: (i) non-mesogenic compounds of diglycolic acid (DGA), (ii) mesogenic compounds of 4-amyloxybenzoic acid (5OBA) and (iii) 4-hexyloxy benzoic acid (6OBA). The existence of intermol. H-bond is confirmed with FTIR and validated using the d. functional theory studies. Polarized light microscopy and differential scanning calorimetry are used to observe the phase variations and transition temperature In addition, enthalpy values of different mesogenic phases are determined It is worth mentioning that the nematic mesogenic defects with S = ±1 and S = +1/2 are also analyzed. In order to discuss the induced higher order smectic F phase and its stability, the d. functional theory study is applied. The band gap energy of the hydrogen bonded liquid crystal mixtures is found to be 5.1780 eV, based on the HUMO-LUMO approach. This induced thermochromic effect of hydrogen bonded liquid crystal mixtures is a useful phenomenon that can be utilized in optical device applications. In this paper, variation on liquid crystal parameters as well as the formation of H-bond between an acceptor and a donor, along with the extension of a chain length, are also reported.

Acta Physica Polonica A published new progress about Band gap. 110-99-6 belongs to class alcohols-buliding-blocks, name is 2,2′-Oxydiacetic acid, and the molecular formula is C4H6O5, Application of 2,2′-Oxydiacetic acid.

Referemce:
Alcohol – Wikipedia,
Alcohols – Chemistry LibreTexts

Zhang, Daquan published the artcileInhibition effect and theoretical investigation of dicarboxylic acid derivatives as corrosion inhibitor for aluminium alloy, SDS of cas: 97-67-6, the main research area is AA5052 alloy aspartic malic acid corrosionn inhibitor.

The corrosion inhibition ability of L-malic acid (MaA) and L-aspartate acid (AsA) against corrosion of the AA5052 alloy in 4 M sodium hydroxide-ethylene glycol solution is investigated. The presence of MaA and AsA in corrosion solution shows a remarkable inhibition of hydrogen evolution of the AA5052 alloy. AsA has the better inhibition effect for the self-corrosion of the AA5052 alloy and its max protection efficiency is 82.1%. This shows that the Mulliken charges of the nitrogen atom of the amine group on the AsA is lower than the Mulliken charge of the oxygen atom of the hydroxyl group on the MaA; the total Mulliken charge of AsA is lower than MaA, and AsA has a higher EHOMO and a lower energy gap, ΔN. The amine group and carboxyl group on the AsA is easier to coordinate with Al3+ ions to form a stable complex.

Materials and Corrosion published new progress about Band gap. 97-67-6 belongs to class alcohols-buliding-blocks, name is (S)-2-hydroxysuccinic acid, and the molecular formula is C4H6O5, SDS of cas: 97-67-6.

Referemce:
Alcohol – Wikipedia,
Alcohols – Chemistry LibreTexts

Shen, Zhongjing published the artcileFabrication of hollow cube dual-semiconductor Ln2O3/MnO/C nanocomposites with excellent microwave absorption performance, SDS of cas: 110-99-6, the main research area is lanthanide oxide carbon manganese semiconductor nanocomposite microwave absorption; 3d-4f metal−organic frameworks; band gap; dual-semiconductor; hollow structure; microwave absorption.

Metal-organic frameworks (MOFs) have been verified as ideal precursors for preparing highly effective microwave absorbers. However, it is still challenging to fabricate a thin, lightweight, and well-organized nanostructure with strong microwave absorption (MA) capability and wide absorption bandwidth. In this study, hollow cube dual-semiconductor Ln2O3/MnO/C (Ln = Nd, Gd, Er) nanocomposites, which are effective microwave absorbers, have been fabricated via one-step high-temperature carbonization of Ln-Mn-MOFs. The effect of band gap on the MA performance of various nanocomposites synthesized at the same carbonization temperature is investigated. Gd2O3/MnO/C-800 shows superior MA capacity with maximum reflection loss (RLmax) of -64.4 dB at 12.8 GHz and 1.86 mm-thickness. When the thickness is 1.44 mm, the RL value is obtained as -52.7 dB at 16.8 GHz, and at a low frequency of 4.36 GHz and thickness of 4.59 mm, the RL value reaches -56.4 dB. Further, the effect of temperature on the MA properties of Gd2O3/MnO/C is examined The results reveal that Gd2O3/MnO/C-700 has an ultrahigh MA bandwidth of 6.6 GHz, covering the entire Ku bands at 2.09 mm-thickness. Overall, this work demonstrates a facile strategy to construct hollow, homogeneous ternary composites with outstanding MA performance.

ACS Applied Materials & Interfaces published new progress about Band gap. 110-99-6 belongs to class alcohols-buliding-blocks, name is 2,2′-Oxydiacetic acid, and the molecular formula is C4H6O5, SDS of cas: 110-99-6.

Referemce:
Alcohol – Wikipedia,
Alcohols – Chemistry LibreTexts

Wang, Chao published the artcileRobust hydrogen production via pickering interfacial catalytic photoreforming of n-octanol-water biphasic system, COA of Formula: C8H18O, the main research area is hydrogen production octanol water pickering interfacial catalysis; Pt/TiO2 nanosheets; hydrogen production; microfluidics; photoreforming; pickering interfacial catalysis.

Pickerin g emu lsion offers a promis ing platform for conductin g interfa cial reaction s bet ween immis cible reagents ; it is part icularly suit able for hy drogen producti on by photo reforming of non-w ater soluble biomass liq uid and w ater. Here in, Pt-p romoted (001)-fa cet-domi nated anatase TiO2 nanosheets were synthesized by a hydrothermal route associated with microfluidic technol. for high activity and metal dispersion, and selective surface modification was carried out for preparing Janus particles. Photoreforming hydrogen production through n-octanol and water that formed O/W microemulsion with an average diameter of 540μm was achieved to obtain amphiphilic catalyst. The as-prepared 2D Janus-type catalysts exhibited remarkably stable emulsification performance as well as photocatalytic activity. This finding indicates that triethoxyfluorosilane had negligible impact on the catalytic performance, yet provided a remarkable benefit to large sp. surface area at microemulsion interface, thereby enhancing the H2 yield up to 2003μmol/g. The cyclic experiments indicate that the decrease in cyclic performance was more likely to be caused by the coalescence of the microemulsion rather than the decrease in catalytic activity, and the microemulsion could be easily recovered by simply hand shaking to more than 96% of the initial performance.

Frontiers in Chemistry (Lausanne, Switzerland) published new progress about Band gap. 111-87-5 belongs to class alcohols-buliding-blocks, name is n-Octanol, and the molecular formula is C8H18O, COA of Formula: C8H18O.

Referemce:
Alcohol – Wikipedia,
Alcohols – Chemistry LibreTexts

Qi, Yong published the artcileRotational Periodicity Display of the Tunable Wettability Pattern in a Photoswitch Based on a Response Bilayer Photonic Crystal, Application of Pentaerythritol tetra(3-mercaptopropionate), the main research area is optical prism warning board anticounterfeiting steganog watermarking complex; bilayer photonic crystal; period; photoswitch; rotation; wettability.

Although the forward diffraction of the three-dimensional (3D) photonic crystal is easily applied to a photoswitch, backward diffraction rainbows are rarely reported. The first rotational photoswitch based on a bilayer 3D photonic crystal with backward diffractions similar to those of two-dimensional photonic crystals was fabricated by vertically combining different thicknesses of nanoparticle templates. When rotating the bilayer photonic crystal, the opening or closing of the rotational photoswitch shows periodic reproducibility values of 30 and 60°. Different periods are regulated by the thickness and scattering effect of the top layer. Moreover, invisible patterns can be encoded and erased by changing the wettability via pH. Because of the decreasing of the refractive index differentials, it will be revealed rapidly when immersed in water. The revealed pattern can be periodically turned on and off by rotating the bilayer photonic crystal. It has great application prospects in optical prism, warning board, anti-counterfeiting, steganog., watermarking, and complex information coding.

ACS Applied Materials & Interfaces published new progress about Band gap. 7575-23-7 belongs to class alcohols-buliding-blocks, name is Pentaerythritol tetra(3-mercaptopropionate), and the molecular formula is C17H28O8S4, Application of Pentaerythritol tetra(3-mercaptopropionate).

Referemce:
Alcohol – Wikipedia,
Alcohols – Chemistry LibreTexts

Lin, Shifan published the artcileStudy on the Effect of Mentha x piperita L. Essential Oil on Electroencephalography upon Stimulation with Different Visual Effects, Category: alcohols-buliding-blocks, the main research area is Mentha piperita essential oil electroencephalog stimulation visual effect; colour; electroencephalograph; inhalation; peppermint essential oil.

Essential oils have long been used to fight infections and treat various diseases. Peppermint (Mentha x piperita L.) is an herbal medicine that has been widely used in daily life since ancient times, and it has a wide range of applications in food, cosmetics, and medicine. Mint oil is refreshing because of its cool and comfortable smell; therefore, it is often used in ethnopharmacol. studies. The present study investigated the effects of peppermint essential oil in electroencephalog. activity response to various visual stimuli. The electroencephalog. changes of participants during peppermint essential oil inhalation under white, red, and blue color stimulations were recorded. A rapid Fourier transform anal. was used to examine the electroencephalograph power spectra of the various microstates induced by inhaling the oils. Peppermint essential oil had various effects on the brain when subjected to different visual stimuli. Alpha waves increased in the prefrontal area in the white-sniffing group, which facilitated learning and thinking. In the blue-sniffing group, the changes were less pronounced than those in the red group, and the increased alpha wave activity in the occipital area was more controlled, indicating that the participants’ visual function increased in this state. Based on EEG investigations, this is the first study to indicate that vision influences the effects of peppermint essential oils. Hence, the results of this study support the use of essential oils in a broader context to serve as a resource for future studies on the effects of different types of essential oils.

Molecules published new progress about Ayurveda. 124-76-5 belongs to class alcohols-buliding-blocks, name is rel-(1R,2R,4R)-1,7,7-Trimethylbicyclo[2.2.1]heptan-2-ol, and the molecular formula is C10H18O, Category: alcohols-buliding-blocks.

Referemce:
Alcohol – Wikipedia,
Alcohols – Chemistry LibreTexts

Locci, Emanuela published the artcileMetabolomics improves the histopathological diagnosis of asphyxial deaths: an animal proof-of-concept model, Recommanded Product: (S)-2-hydroxysuccinic acid, the main research area is metabolome histopathol diagnosis asphyxial death.

The diagnosis of mech. asphyxia remains one of the most difficult issues in forensic pathol. Asphyxia ultimately results in cardiac arrest (CA) and, as there are no specific markers, the differential diagnosis of primitive CA and CA secondary to asphyxiation relies on circumstantial details and on the pathologist experience, lacking objective evidence. Histol. examination is currently considered the gold standard for CA post-mortem diagnosis. Here we present the comparative results of histopathol. vs. those previously obtained by 1H NMR (NMR) metabolomics in a swine model, originally designed for clin. purposes, exposed to two different CA causes, namely ventricular fibrillation and asphyxia. While heart and brain microscopical anal. could identify the damage induced by CA without providing any addnl. information on the CA cause, metabolomics allowed the identification of clearly different profiles between the two groups and showed major differences between asphyxiated animals with good and poor outcomes. Minute-by-minute plasma sampling allowed to associate these modifications to the pre-arrest asphyxial phase showing a clear correlation to the cellular effect of mech. asphyxia reproduced in the experiment The results suggest that metabolomics provides addnl. evidence beyond that obtained by histol. and immunohistochem. in the differential diagnosis of CA.

Scientific Reports published new progress about Asphyxia. 97-67-6 belongs to class alcohols-buliding-blocks, name is (S)-2-hydroxysuccinic acid, and the molecular formula is C4H6O5, Recommanded Product: (S)-2-hydroxysuccinic acid.

Referemce:
Alcohol – Wikipedia,
Alcohols – Chemistry LibreTexts

Wu, Tongzhi published the artcileEffects of different sweet preloads on incretin hormone secretion, gastric emptying, and postprandial glycemia in healthy humans, Formula: C12H24O11, the main research area is glucose methylglucose Tagatesse sucralose incretin glycemia gastric emptying.

Background: Macronutrient “”preloads”” can stimulate glucagon-like peptide 1 (GLP-1) and glucose-dependent insulinotropic polypeptide (GIP), slow gastric emptying, and reduce postprandial glycemic excursions. After sweet preloads, these effects may be signaled by sodium-glucose cotransporter-1 (SGLT1), sweet taste receptors, or both. Objective: We determined the effects of 4 sweet preloads on GIP and GLP-1 release, gastric emptying, and postprandial glycemia. Design: Ten healthy subjects were studied on 4 sep. occasions each. A preload drink containing 40 g glucose, 40 g tagatose/isomalt mixture (TIM), 40 g 3-O-methylglucose (3OMG; a nonmetabolized substrate of SGLT1), or 60 mg sucralose was consumed 15 min before a 13C-octanoic acid-labeled mashed potato meal. Blood glucose, plasma total GLP-1 and GIP, serum insulin, and gastric emptying were determined Results: Both glucose and 3OMG stimulated GLP-1 and GIP release in advance of the meal (each P < 0.05), whereas TIM and sucralose did not. The overall postprandial GLP-1 response was greater after glucose, 3OMG, and TIM than after sucralose (P < 0.05), albeit later after TIM than the other preloads. The blood glucose and insulin responses in the first 30 min after the meal were greatest after glucose (each P < 0.05). Gastric emptying was slower after both 3OMG and TIM than after sucralose (each P < 0.05). Conclusions: In healthy humans, SGLT1 substrates stimulate GLP-1 and GIP and slow gastric emptying, regardless of whether they are metabolized, whereas the artificial sweetener sucralose does not. Poorly absorbed sweet tastants (TIM), which probably expose a greater length of gut to nutrients, result in delayed GLP-1 secretion but not in delayed GIP release. These observations have the potential to optimize the use of preloads for glycemic control. American Journal of Clinical Nutrition published new progress about Appetite. 64519-82-0 belongs to class alcohols-buliding-blocks, name is (3R,4R,5R)-6-(((2S,3R,4S,5S,6R)-3,4,5-Trihydroxy-6-(hydroxymethyl)tetrahydro-2H-pyran-2-yl)oxy)hexane-1,2,3,4,5-pentaol, and the molecular formula is C12H24O11, Formula: C12H24O11.

Referemce:
Alcohol – Wikipedia,
Alcohols – Chemistry LibreTexts

Corey, Elizabeth A. published the artcileInhibitory signaling in mammalian olfactory transduction potentially mediated by Gαo, Computed Properties of 111-87-5, the main research area is mammalian olfactory receptor neuron inhibition modulation transduction; Combinatorial coding; Inhibition; Modulation; Olfaction; Olfactory receptor neurons.

Olfactory GPCRs in mammalian olfactory receptor neurons mediate excitation through the Gαs family member Gαolf. Here we tentatively associate a second G protein, Gαo, with inhibitory signaling in mammalian olfactory transduction by first showing that odor evoked phosphoinositide 3-kinase-dependent inhibition of signal transduction is absent in the native ORNs of mice carrying a conditional OMP-Cre based knockout of Gαo. We then identify an OR from native rat ORNs that are activated by octanol through cyclic nucleotide signaling and inhibited by citral in a PI3K-dependent manner. We show that the OR activates cyclic nucleotide signaling and PI3K signaling in a manner that reflects its functionality in native ORNs. Our findings lay the groundwork to explore the interesting possibility that ORs can interact with two different G proteins in a functionally identified, ligand-dependent manner to mediate opponent signaling in mature mammalian ORNs.

Molecular and Cellular Neuroscience published new progress about Animalia. 111-87-5 belongs to class alcohols-buliding-blocks, name is n-Octanol, and the molecular formula is C8H18O, Computed Properties of 111-87-5.

Referemce:
Alcohol – Wikipedia,
Alcohols – Chemistry LibreTexts

Hansen, Camilla published the artcileHigh metabolic substrate load induces mitochondrial dysfunction in rat skeletal muscle microvascular endothelial cells, Formula: C4H6O5, the main research area is mitochondrial dysfunction rat skeletal muscle microvascular endothelial cell; glucose; mitochondria; palmitic acid; reactive oxygen species; respirometry; vascular.

The influence of glucose and palmitic acid (PA) on mitochondrial respiration and emission of hydrogen peroxide (H2O2) was determined in skeletal muscle-derived microvascular endothelial cells. Measurements were assessed in intact and permeabilized (cells treated with 0.025% saponin) low passage endothelial cells with acute-or prolonged (3 days) incubation with regular (1.7 mM) or elevated (2.2 mM) PA concentrations and regular (5 mM) or elevated (11 mM) glucose concentrations In intact cells, acute incubation with 1.7 mM PA alone or with 1.7 mM PA + 5 mM glucose (p < .001) led to a lower mitochondrial respiration (p < 0.01) and markedly higher H2O2/O2 emission (p < 0.05) than with 5 mM glucose alone. Prolonged incubation of intact cells with 1.7 mM PA +5 mM glucose led to 34% (p < 0.05) lower respiration and 2.5-fold higher H2O2/O2 emission (p < 0.01) than incubation with 5 mM glucose alone. Prolonged incubation of intact cells with elevated glucose led to 60% lower (p < 0.05) mitochondrial respiration and 4.6-fold higher H2O2/O2 production than incubation with 5 mM glucose in intact cells (p < 0.001). All effects observed in intact cells were present also in permeabilized cells (State 2). In conclusion, our results show that acute and prolonged lipid availability, as well as prolonged hyperglycemia, induces mitochondrial dysfunction as evidenced by lower mitochondrial respiration and enhanced H2O2/O2 emission. Elevated plasma substrate availability may lead to microvascular dysfunction in skeletal muscle by impairing endothelial mitochondrial function. Physiological Reports published new progress about Animalia. 97-67-6 belongs to class alcohols-buliding-blocks, name is (S)-2-hydroxysuccinic acid, and the molecular formula is C4H6O5, Formula: C4H6O5.

Referemce:
Alcohol – Wikipedia,
Alcohols – Chemistry LibreTexts