Author: tianli

Wang, Xiuli published the artcile3D ultraviolet polymerized electrolyte based on PEO modified PVDF-HFP electrospun membrane for high-performance lithium-sulfur batteries, Name: Pentaerythritol tetra(3-mercaptopropionate), the main research area is lithium sulfur battery gel polymer electrolyte nanofiber UV polymerization.

At present, the quasi-solid-state lithium-sulfur batteries (LSBs) assembled with sulfur cathode, gel polymer electrolyte (GPE) and Li anode have explored a novel prospect for substantial energy applications owing to the high energy d. and elevated security. In this work, we propose a 3D UV polymerized electrolyte, in which the inner substrate is the PEO modified PVDF-HFP electrospun membrane, and the hydrogen bonding effect plays a critical role in regulating the nanofiber diameter and membrane porosity. Simultaneously, outside coating is the in-situ UV polymerized pentaerythritol tetrakis-divinyl adipate (PETT-DA) layer, in which the carbonyl groups can effectively suppress the polysulfides shuttling. Consequently, the optimal electrolyte membranes with high porosity possess the high electrolyte uptake of 279.8%, ionic conductivity of 9.64 × 10-4 S cm-1 and Li+ transference number of 0.71 at 25 °C. Prominently, the assembled quasi-solid-state LSBs exhibit the stable coulombic efficiency of 99.5-100.0% over 300 cycles and good capacity retention of 87.1% after 300 cycles at 2C. More importantly, excellent thermal dimensional properties and mech. performances further provide great com. potentials for our synthesized 3D electrolyte membranes.

Electrochimica Acta published new progress about Battery anodes. 7575-23-7 belongs to class alcohols-buliding-blocks, name is Pentaerythritol tetra(3-mercaptopropionate), and the molecular formula is C17H28O8S4, Name: Pentaerythritol tetra(3-mercaptopropionate).

Referemce:
Alcohol – Wikipedia,
Alcohols – Chemistry LibreTexts

Hao, Xiaojing published the artcileA gel polymer electrolyte based on PVDF-HFP modified double polymer matrices via ultraviolet polymerization for lithium-sulfur batteries, Recommanded Product: Pentaerythritol tetra(3-mercaptopropionate), the main research area is PVDF HFP UV polymerization lithium sulfur battery; Gel polymer electrolyte; Lithium-sulfur battery; Quasi-solid-state; Ultraviolet polymerization.

Currently, as a new kind of separator, gel polymer electrolytes (GPEs) not only should play a role to sep. cathode and anode, but also should have high ionic conductivity to guarantee the elevated electrochem. performances. As for quasi-solid-state lithium-sulfur batteries (LSBs), it is also very important to confine the shuttle effect and Li dendrite growth. Herein, we synthesize GPEs polymerized under UV, in which the poly(vinylidene fluoride-hexafluoro propylene) (PVDF-HFP) is one of the polymer matrixes to provide high ionic conductivity and toughness, pentaerythritol tetrakis-divinyl adipate (PETT-DA) is another polymer matrix to simultaneously suppress shuttle effect and lithium dendrite. More importantly, Li6.4La3Zr1.4Ta0.6O12 (LLZTO) provides the Li+ transport sites to facilitate the Li+ transport speed. Meanwhile, it can hinder the crystallization of polymers, reducing crystallinity of GPEs. Prominently, the designed GPEs with 10 wt% LLZTO have elevated ionic conductivity of 8.74 × 10-4 S cm-1 and Li+ transference number of 0.69, accompanied with superb capacity retention of 88.6% after 300 cycles at 1C. Importantly, the excellent mech. properties and thermal stability give more potentials to the commercialization of LSBs.

Journal of Colloid and Interface Science published new progress about Battery anodes. 7575-23-7 belongs to class alcohols-buliding-blocks, name is Pentaerythritol tetra(3-mercaptopropionate), and the molecular formula is C17H28O8S4, Recommanded Product: Pentaerythritol tetra(3-mercaptopropionate).

Referemce:
Alcohol – Wikipedia,
Alcohols – Chemistry LibreTexts

Caputo, Lucia published the artcileChemical composition and biological activities of essential oils from peels of three Citrus species, Name: rel-(1R,2R,4R)-1,7,7-Trimethylbicyclo[2.2.1]heptan-2-ol, the main research area is Citrus fruit peelessential oil chem composition phototoxicity biol activity; Citrus limon; Citrus × bergamia; Citrus × myrtifolia; eco-compatibility; essential oil; phytotoxicity.

Fruit peels are generally underutilized byproducts of the food industry, although they are valuable sources of bioactive compounds The aim of this study is to evaluate a new application for three Citrus peel EOs as bio-herbicides. After a micro-morphol. evaluation of Citrus peels by SEM anal., the phytochem. composition of the EOs of Citrus x bergamia Risso & Poit., Citrus x myrtifolia Raf., and Citruslimon (L.) Osbeck was characterized by GC/FID and GC/MS analyses. The in vitro phytotoxicity against germination and initial radical elongation of several crop and weed species was evaluated. Furthermore, the eco-compatibility of these EOs has been assessed by the brine shrimp (Artemia salina) lethality assay. SEM anal. highlighted the morphometric differences of the schizolysigenous pockets among the peels of the three Citrus species. Oxygenated monoterpenes are the main constituents in C. x bergamia (51.09%), whereas monoterpene hydrocarbons represent the most abundant compounds in C. x myrtifolia (82.15%) and C. limon (80.33%) EOs. They showed marked and selective phytotoxic activity in vitro, often at very low concentration (0.1 μg/mL) against all plant species investigated, without showing any toxicity on Artemia salina, opening the perspective of their use as safe bio-herbicides.

Molecules published new progress about Artemia salina. 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, Name: rel-(1R,2R,4R)-1,7,7-Trimethylbicyclo[2.2.1]heptan-2-ol.

Referemce:
Alcohol – Wikipedia,
Alcohols – Chemistry LibreTexts

da Silva, Priscila Missio published the artcileStability of volatile compounds of honey during prolonged storage, HPLC of Formula: 584-02-1, the main research area is volatile compound stability honey prolonged storage; Aroma compounds; Degradation; Honey; Storage; Volatile compounds.

The aim of the study was to identify, via headspace solid phase microextraction and gas chromatog.-mass spectrometry, volatile compounds in eight no processing Apis mellifera L. honey samples produced in the state of Santa Catarina, Brazil, and monitor their stability over 540 days of storage at 20 ± 4°C, searching for possible degradation indicators compounds The result of the initial anal. showed the presence of 32 volatile compounds and 24 were selected for the evaluation of the behavior over the storage. The volatiles cis- and trans-linalool oxide and hotrienol showed increased over 540 days, except for one sample, which showed a decrease in the cis- and trans- linalool oxide contents. Other compounds (Et acetate, 1-hexanol. 2-Et, benzoic acid. Et ester, butanoic acid. 3-Me, butanoic acid. 2-Me, and salicylic acid. tert.-Bu ester) were detected in at least one sample from 360 days of storage. Considering the storage system applied, the compounds cis- and trans-linalool oxide and hotrienol, which were found in all samples and times evaluated, can be considered possible indicators compounds of degradation of honey.

Journal of Food Science and Technology (New Delhi, India) published new progress about Apis mellifera. 584-02-1 belongs to class alcohols-buliding-blocks, name is 3-Pentanol, and the molecular formula is C5H12O, HPLC of Formula: 584-02-1.

Referemce:
Alcohol – Wikipedia,
Alcohols – Chemistry LibreTexts

Gomez-Ramos, M. M. published the artcileExploration of environmental contaminants in honeybees using GC-TOF-MS and GC-Orbitrap-MS, Application In Synthesis of 124-76-5, the main research area is environmental contaminant honeybee Apis GC TOF MS Orbitrap; pollutant PAH phthalate synthetic musk Apis; Environmental contaminants; GC-EI-TOF-MS; GC-Orbitrap-MS; Honeybee; Non-targeted screening.

This study reports an anal. approach by gas chromatog. and high-resolution mass spectrometry (HRMS) intended to be used for investigation of nontargeted environmental contaminants in honeybees. The approach involves a generic extraction and anal. with two GC-HRMS systems: time-of-flight and Orbitrap analyzers, GC-TOF-MS, and GC-Orbitrap-MS operated in electron-impact ionization (EI) mode. The workflow for screening of non-targeted contaminants consisted of initial peak detection by deconvolution and matching the first-stage mass spectra EI-MS with a nominal mass spectral library. To gain further confidence in the structural characterization of the contaminants under investigation, mol. formula of representative ions (mol. and fragment ions) was provided for those with an accurate mass scoring (error < 5 ppm). This methol. was applied for screening environmental contaminants in 75 samples of adult honeybee. This approach has provided the tentative identification of environmental contaminants belonging to different chem. groups, among them, PAHs, phthalates and synthetic musks. Residues of veterinary treatments used in apiculture were also detected in the honeybee samples. Science of the Total Environment published new progress about Apis mellifera. 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, Application In Synthesis of 124-76-5.

Referemce:
Alcohol – Wikipedia,
Alcohols – Chemistry LibreTexts

Heffernan, Michele L. R. published the artcileUlotaront: A TAAR1 Agonist for the Treatment of Schizophrenia, COA of Formula: C4H11NO2, the main research area is structure TAAR1 agonist ulotaront preparation schizophrenia.

Ulotaront (SEP-363856) is a trace-amine associated receptor 1 (TAAR1) agonist with 5-HT1A receptor agonist activity in Phase 3 clin. development, with FDA Breakthrough Therapy Designation, for the treatment of schizophrenia. TAAR1 is a G-protein-coupled receptor (GPCR) that is expressed in cortical, limbic, and midbrain monoaminergic regions. It is activated by endogenous trace amines, and is believed to play an important role in modulating dopaminergic, serotonergic, and glutamatergic circuitry. TAAR1 agonism data are reported herein for ulotaront and its analogs in comparison to endogenous TAAR1 agonists. In addition, a human TAAR1 homol. model was built around ulotaront to identify key interactions and attempt to better understand the scaffold-specific TAAR1 agonism structure-activity relationships.

ACS Medicinal Chemistry Letters published new progress about Antipsychotics. 22483-09-6 belongs to class alcohols-buliding-blocks, name is 2,2-Dimethoxyethanamine, and the molecular formula is C4H11NO2, COA of Formula: C4H11NO2.

Referemce:
Alcohol – Wikipedia,
Alcohols – Chemistry LibreTexts

Dybczynski, Rajmund S. published the artcileSeparation of Rare Earth Elements (REE) by Ion Interaction Chromatography (IIC) Using Diglycolic Acid (ODA) as a Complexing Agent, Quality Control of 110-99-6, the main research area is separation rare earth element ion interaction chromatog; diglycolic acid complexing agent.

Abstract: The possibility of rare earth elements (REE) separation by ion interaction chromatog. (IIC) employing their complexes with diglycolic acid (ODA) in anion exchange mode has been studied theor. and exptl. Calculations, assuming that only trivalent complex is significantly uptaken by the stationary phase, indicated that at at pH 4-6, the retention in the lanthanide series should increase from La to the Tb-Dy-Ho region with yttrium showing apparent at. number (ApparatusAt.Number) of 671/2 and then decrease with further increase of at. number Chromatog. experiments in the system: Column: Eternity C18-mobile phase 5 mM ODA/8.6 mM TBAOH/0.6 mM HNO3; pH 4.60 confirmed theor. predictions. It was found that scandium at pH ≥ 4.0 elutes in front of the whole REE group but at low pH enters the region of light lanthanides. The non-monotonical change of affinity of the REE with the increase of at. number results in quite unusual order of elution of REE namely: Sc < La < Ce < Lu < Pr < Yb < Nd < Tm < Sm < Eu < Er≈Y < Gd < Ho < Tb≈Dy. Chromatographia published new progress about Anion exchange. 110-99-6 belongs to class alcohols-buliding-blocks, name is 2,2'-Oxydiacetic acid, and the molecular formula is C4H6O5, Quality Control of 110-99-6.

Referemce:
Alcohol – Wikipedia,
Alcohols – Chemistry LibreTexts

Matsumiya, Masahiko published the artcileSeparation of palladium by solvent extraction with methylamino-bis-N,N-dioctylacetamide and direct electrodeposition from loaded organic phase, Synthetic Route of 111-87-5, the main research area is palladium solvent extraction methylaminodioctylacetamide formed organic phase direct electrodeposition.

The development of solvent extraction and direct electrodeposition processes is an important task to reduce the volume of secondary wastes. In this study, the extraction of Pd(II) from hydrochloric/chloride media using methylimino-bis-N,N-dioctylacetamide (MIDOA) in three diluents (acetophenone; AP, 1,2-dichloroethane; DCE, or 1-octanol; OC) was investigated. Slope anal. revealed that the extraction reaction of Pd(II) was based on the following anion exchange: [PdCl42-]aq + n[MIDOA]org ↔ [Pd(Cl)4-2n(MIDOA)2]2n-2org + 2n[Cl-]aq . The electrochem. behavior of the extracted Pd(II) complex in the MIDOA/AP bath was investigated using an electrochem. quartz crystal microbalance (EQCM). Pd(II) was found to be reduced to Pd(0) metal via a two-electron transfer, and the cathodic reaction [Pd(MIDOA)2]2+ + 2e- → Pd(0) + 2[MIDOA] was found to proceed in the region between -2.38 V and -3.40 V based on the apparent molar mass of 105.22 evaluated by EQCM. Moreover, the alternation of Δηρ corresponded to the local decrease in the viscosity of the organic phase near the electrode. The potentiostatic electrodeposition of the extracted Pd(II) complex enabled us to recover the blackish electrodeposits, which were identified as Pd metal through SEM/EDX, XPS, and XRD analyses.

Separation and Purification Technology published new progress about Anion exchange. 111-87-5 belongs to class alcohols-buliding-blocks, name is n-Octanol, and the molecular formula is C8H18O, Synthetic Route of 111-87-5.

Referemce:
Alcohol – Wikipedia,
Alcohols – Chemistry LibreTexts

Rozi, Parhat published the artcileSequential extraction, characterization and antioxidant activity of polysaccharides from Fritillaria pallidiflora Schrenk, Application In Synthesis of 59-23-4, the main research area is Fritillaria polysaccharide extraction antioxidant activity property; Antioxidant activity; Characterization; Fritillaria pallidiflora schrenk; Polysaccharide.

In this paper, Fritillaria pallidiflora schrenk polysaccharides were extracted with different methods and isolated by anion-exchange and gel-permeation chromatog. Physicochem. properties, structural characteristics and antioxidant activities were investigated for the first time. The polysaccharides composed of glucose, galactose, arabinose, xylose, mannose and rhamnose with different molar ratio and mol. weight Fourier transform IR spectroscopy and NMR anal. exhibited the presence of key functional groups of polysaccharides whereas SEM anal. revealed the characteristic morphol. of different fractions. The thermogravimetric anal. manifested the thermal stability of polysaccharides. The reducing power and antioxidant activities of polysaccharides were evaluated in vitro. Among them, the acidic fraction FPSP-H2-1 has a strong antioxidant effect against DPPH, hydroxyl and ABTS free radicals. The results revealed the polysaccharide’s important role as potential natural antioxidant agents during the investigation and application of bioactive polysaccharide.

International Journal of Biological Macromolecules published new progress about Anion exchange. 59-23-4 belongs to class alcohols-buliding-blocks, name is (2R,3S,4S,5R)-2,3,4,5,6-Pentahydroxyhexanal, and the molecular formula is C6H12O6, Application In Synthesis of 59-23-4.

Referemce:
Alcohol – Wikipedia,
Alcohols – Chemistry LibreTexts

Remigante, Alessia published the artcileD-galactose decreases anion exchange capability through band 3 protein in human erythrocytes, Recommanded Product: (2R,3S,4S,5R)-2,3,4,5,6-Pentahydroxyhexanal, the main research area is anion exchange capability D galactose band 3 protein; Band 3 protein; SO42− uptake; anion exchange; d-Galactose; glycation; oxidative stress.

D-Galactose (D-Gal), when abnormally accumulated in the plasma, results in oxidative stress production, and may alter the homeostasis of erythrocytes, which are particularly exposed to oxidants driven by the blood stream. In the present investigation, the effect of D-Gal (0.1 and 10 mM, for 3 and 24 h incubation), known to induce oxidative stress, has been assayed on human erythrocytes by determining the rate constant of SO42- uptake through the anion exchanger Band 3 protein (B3p), essential to erythrocytes homeostasis. Moreover, lipid peroxidation, membrane sulfhydryl groups oxidation, glycated Hb (% A1c), metHb levels (% MetHb), and expression levels of B3p have been verified. Our results show that D-Gal reduces anion exchange capability of B3p, involving neither lipid peroxidation, nor oxidation of sulfhydryl membrane groups, nor MetHb formation, nor altered expression levels of B3p. D-Gal-induced %A1c, known to crosslink with B3p, could be responsible for rate of anion exchange alteration. The present findings confirm that erythrocytes are a suitable model to study the impact of high sugar concentrations on cell homeostasis; show the first in vitro effect of D-Gal on B3p, contributing to the understanding of mechanisms underlying an in vitro model of aging; demonstrate that the first impact of D-Gal on B3p is mediated by early Hb glycation, rather than by oxidative stress, which may be involved on a later stage, possibly adding more knowledge about the consequences of D-Gal accumulation.

Antioxidants published new progress about Anion exchange. 59-23-4 belongs to class alcohols-buliding-blocks, name is (2R,3S,4S,5R)-2,3,4,5,6-Pentahydroxyhexanal, and the molecular formula is C6H12O6, Recommanded Product: (2R,3S,4S,5R)-2,3,4,5,6-Pentahydroxyhexanal.

Referemce:
Alcohol – Wikipedia,
Alcohols – Chemistry LibreTexts