Author: tianli

Lessard, Roger A. published the artcilePhotopolymers in optical computing: materials and devices, Related Products of alcohols-buliding-blocks, the main research area is optical computing photopolymer material; dyed gelatin polyvinyl alc image processing.

The applications of dyed gelatin and poly(vinyl alc.) for non-Fourier image processing are described. Examples of contrast reversal, edge enhancement, character recognition and addition and subtraction of images using dyed gelatin films are presented. Dyed poly(vinyl alc.) has been used in an optical correlator for the detection of cross correlation peak which can serve as an input for a neural network.

Proceedings of SPIE-The International Society for Optical Engineering published new progress about Computers. 2212-32-0 belongs to class alcohols-buliding-blocks, name is N2-(2-Hydroxyethyl)-N1,N1,N2-trimethyl-1,2-ethylenediamine, and the molecular formula is C7H18N2O, Related Products of alcohols-buliding-blocks.

Referemce:
Alcohol – Wikipedia,
Alcohols – Chemistry LibreTexts

Sokmen, Ahmet published the artcileInfluence of some bulk sweeteners on rheological properties of chocolate, Computed Properties of 64519-82-0, the main research area is low calorie sweetener particle size rheol chocolate.

Chocolates with reduced calories have become popular among consumers and manufacturers. One way of manufacturing chocolate with reduced calories is to replace sucrose with some alternatives. Effects of different bulk sweeteners (maltitol, isomalt, and xylitol) with different particle size intervals (PSI) (106-53, 53-38 and 38-20 μm) on rheol. properties of molten chocolate were investigated. The best model that fit the rheol. data was Herschel-Bulkley model. Maltitol resulted in similar rheol. properties of chocolate compared to sucrose and thus can be a good alternative. Isomalt resulted in higher plastic viscosity while maltitol resulted in higher yield stress than others. As the particle size increased the plastic viscosity and the yield stress increased. The differences in rheol. properties of chocolate with different bulk sweeteners were caused by differences in solid volume fraction and particle size distribution (PSD). A substitute with large particle size should be chosen to replace sucrose for improving rheol. properties of chocolate, but the particle size should be small enough to obtain good sensory properties.

LWT–Food Science and Technology published new progress about Chocolate. 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, Computed Properties of 64519-82-0.

Referemce:
Alcohol – Wikipedia,
Alcohols – Chemistry LibreTexts

Lee, J.-H. published the artcileSecond-phase validation study of an alternative developmental toxicity test using mouse embryonic stem cell-derived embryoid bodies, Related Products of alcohols-buliding-blocks, the main research area is toxicity mouse embryonic stem cell embryoid body.

The embryoid body test (EBT) is a developmental toxicity test method that measures the size of embryoid bodies (EBs) and the viability of mouse embryonic stem cells (mESCs) and fibroblasts (3T3 cells). The previous pre-validation study confirmed the high accuracy (above 80%) of EBT using 26 coded test chems. This second-phase validation study assessed the inter-laboratory reproducibility (5 chems. in common) and predictive capacity (10 chems. in each laboratory) test using the coded test chems. at three laboratories For the prediction model, the accuracy is increased when more data is accumulated. Therefore, we updated the prediction model and analyzed the results of the second year with the newly created-prediction model. Statistical anal. of the inter-laboratory reproducibility test results indicated that accuracy, sensitivity, and specificity were 87%, 78%, and 100%, resp. The results of the statistical anal. of the predictive capacity test showed an accuracy of 80%, sensitivity of 78%, and specificity of 81%. In conclusion, the EBT can accurately classify various embryotoxicants within a short period and with relatively little effort. Therefore, EBT can be used as a good way to test developmental toxicity.

Journal of Physiology and Pharmacology published new progress about Chemicals. 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, Related Products of alcohols-buliding-blocks.

Referemce:
Alcohol – Wikipedia,
Alcohols – Chemistry LibreTexts

Timmer, Brian J. J. published the artcileAcid-Assisted Direct Olefin Metathesis of Unprotected Carbohydrates in Water, Product Details of C9H16O6, the main research area is disaccharide glycoside chelation galactopyranoside mannoside preparation olefin metathesis minimization; carbene ligands; carbohydrates; homogeneous catalysis; olefin metathesis; synthetic methods.

The ability to use unprotected carbohydrates in olefin metathesis reactions in aqueous media is demonstrated. By using water-soluble, amine-functionalized Hoveyda-Grubbs catalysts under mildly acidic aqueous conditions, the self-metathesis of unprotected alkene-functionalized α-D-manno- and α-D-galactopyranosides could be achieved through minimization of non-productive chelation and isomerization. Cross-metathesis with allyl alc. could also be achieved with reasonable selectivity. The presence of small quantities (2.5 vol %) of acetic acid increased the formation of the self-metathesis product while significantly reducing the alkene isomerization process. These results demonstrate the potential of directly using unprotected carbohydrate structures in olefin metathesis reactions under mild conditions compatible with biol. systems, and thereby enabling their use in, for example, drug discovery and protein derivatization.

Chemistry – A European Journal published new progress about Chelation. 2595-07-5 belongs to class alcohols-buliding-blocks, name is (2R,3R,4S,5R,6R)-2-(Allyloxy)-6-(hydroxymethyl)tetrahydro-2H-pyran-3,4,5-triol, and the molecular formula is C9H16O6, Product Details of C9H16O6.

Referemce:
Alcohol – Wikipedia,
Alcohols – Chemistry LibreTexts

Ma, Zongwen published the artcileCrosslinkable and Chelatable Organic Ligand Enables Interfaces and Grains Collaborative Passivation for Efficient and Stable Perovskite Solar Cells, SDS of cas: 7575-23-7, the main research area is perovskite solar cell crosslinkable chelatable organic ligand passivation; chemical anchoring; collaborative interface-grain engineering; in situ crosslinking; perovskite solar cells; stability.

The organic-inorganic halide perovskite solar cell (PerSC) is the state-of-the-art emerging photovoltaic technol. However, the environmental water/moisture and temperature-induced intrinsic degradation and phase transition of perovskite greatly retard the commercialization process. Herein, a dual-functional organic ligand, 4,7-bis((4-vinylbenzyl)oxy)-1,10-phenanthroline (namely, C1), with crosslinkable styrene side-chains and chelatable phenanthroline backbone, synthesized via a cost-effective Williamson reaction, is introduced for collaborative electrode interface and perovskite grain boundaries (GBs) engineering. C1 can chem. chelate with Sn4+ in the SnO2 electron transport layer and Pb2+ in the perovskite layer via coordination bonds, suppressing nonradiative recombination caused by traps/defects existing at the interface and GBs. Meanwhile, C1 enables in situ crosslinking via thermal-initiated polymerization to form a hydrophobic and stable polymer network, freezing perovskite morphol., and resisting moisture degradation Consequently, through collaborative interface-grain engineering, the resulting PerSCs demonstrate high power conversion efficiency of 24.31% with excellent water/moisture and thermal stability. The findings provide new insights of collaborative interface-grain engineering via a crosslinkable and chelatable organic ligand for achieving efficient and stable PerSCs.

Small published new progress about Chelation. 7575-23-7 belongs to class alcohols-buliding-blocks, name is Pentaerythritol tetra(3-mercaptopropionate), and the molecular formula is C17H28O8S4, SDS of cas: 7575-23-7.

Referemce:
Alcohol – Wikipedia,
Alcohols – Chemistry LibreTexts

Kumar, Rajan published the artcileEngineering Spherically Super-Structured Polyamides for the Sustainable Water Remediation, Application In Synthesis of 7575-23-7, the main research area is engineering spherically super structured polyamide sustainable water remediation.

Unlike metal-ornamented hybrid material and linear polymers, we invoked the growth of a biodegradable superstructured cross-linked polyamide-ester material. The material is thermally stable. The thiol-alkene photoclicked material acted as an efficient water remediator. The material efficiently monitored amphiphilic dyes like rhodamine B (RHB), methylene blue (MB), and chronic mercuric ions in water. The adsorption kinetics revealed the material could adsorb >95% dyes within 24 h. The RHB-functionalized polymer could sense mercuric ions too. The D. functional theory (DFT) calculation shows a chelated mercury complex with thioether in the polymer, Poly-Am-RhAll, to form a comparatively more stable complex.

ACS Materials Au published new progress about Chelation. 7575-23-7 belongs to class alcohols-buliding-blocks, name is Pentaerythritol tetra(3-mercaptopropionate), and the molecular formula is C17H28O8S4, Application In Synthesis of 7575-23-7.

Referemce:
Alcohol – Wikipedia,
Alcohols – Chemistry LibreTexts

Pfeifer, Lukas published the artcileArabinogalactan-proteins of Zostera marina L. contain unique glycan structures and provide insight into adaption processes to saline environments, Recommanded Product: (2R,3S,4S,5R)-2,3,4,5,6-Pentahydroxyhexanal, the main research area is Zostera arabinogalactan protein glycan salinity.

Abstract: Seagrasses evolved from monocotyledonous land plants that returned to the marine habitat. This transition was accomplished by substantial changes in cell wall composition, revealing habitat-driven adaptation to the new environment. Whether arabinogalactan-proteins (AGPs), important signalling mols. of land plants, are present in seagrass cell walls is of evolutionary and plant development interest. AGPs of Zostera marina L. were isolated and structurally characterised by anal. and bioinformatics methods as well as by ELISA with different anti-AGP antibodies. Calcium-binding capacity of AGPs was studied by isothermal titration calorimetry (ITC) and microscopy. Bioinformatic searches of the Z. marina proteome identified 9 classical AGPs and a large number of chimeric AGPs. The glycan structures exhibit unique features, including a high degree of branching and an unusually high content of terminating 4-O-methyl-glucuronic acid (4-OMe GlcA) residues. Although the common backbone structure of land plant AGPs is conserved in Z. marina, the terminating residues are distinct with high amounts of uronic acids. These differences likely result from the glycan-active enzymes (glycosyltransferases and methyltransferases) and are essential for calcium-binding properties. The role of this polyanionic surface is discussed with regard to adaptation to the marine environment.

Scientific Reports published new progress about Cell wall. 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

Stimpson, Taylor C. published the artcileXyloglucan Structure Impacts the Mechanical Properties of Xyloglucan-Cellulose Nanocrystal Layered Films-A Buckling-Based Study, Recommanded Product: (2R,3S,4S,5R)-2,3,4,5,6-Pentahydroxyhexanal, the main research area is xyloglucan cellulose nanocrystal film plant cell wall.

Interactions between polysaccharides, specifically between cellulose and hemicelluloses like xyloglucan (XG), govern the mech. properties of the plant cell wall. This work aims to understand how XG mol. weight (MW) and the removal of saccharide residues impact the elastic modulus of XG-cellulose materials. Layered sub-micrometer-thick films of cellulose nanocrystals (CNCs) and XG were employed to mimic the structure of the plant cell wall and contained either (1) unmodified XG, (2) low MW XG produced by ultrasonication (USXG), or (3) XG with a reduced degree of galactosylation (DGXG). Their mech. properties were characterized through thermal shrinking-induced buckling. Elastic moduli of 19 ± 2, 27 ± 1, and 75 ± 6 GPa were determined for XG-CNC, USXG-CNC, and DGXG-CNC films, resp. The conformation of XG adsorbed on CNCs is influenced by MW, which impacts mech. properties. To a greater degree, partial degalactosylation, which is known to increase XG self-association and binding capacity of XG to cellulose, increases the modulus by fourfold for DGXG-CNC films compared to XG-CNC. Films were also buckled while fully hydrated by using the thermal shrinking method but applying the heat using an autoclave; the results implied that hydrated films are thicker and softer, exhibiting a lower elastic modulus compared to dry films. This work contributes to the understanding of structure-function relationships in the plant cell wall and may aid in the design of tunable biobased materials for applications in biosensing, packaging, drug delivery, and tissue engineering.

Biomacromolecules published new progress about Cell wall. 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

Yu, Hang published the artcileExtraction of Cinnamomum camphora chvar. Borneol essential oil using neutral cellulase assisted-steam distillation: optimization of extraction, and analysis of chemical constituents, Product Details of C10H18O, the main research area is Cinnamomum camphora borneol essential oil.

In this study, neutral cellulase assisted-steam distillation (NCSD) was first developed to extract BEO, followed by optimizing NCSD through single-factor test (SFT) and response surface methodol. (RSM). The processing conditions of NCSD were optimized as follows: addition of neutral cellulase (0.36 FPU/g of fresh leaves), duration of enzymolysis (5.39 h), temperature (51.47°C), and pH (6.15). The predicted yield of BEO using NCSD was 1.03% within 95% confidence intervals of the actual yield of BEO (1.03 ± 0.03%), which was 58% higher than the yield of BEO using conventional steam distillation (SD) without neutral cellulase pre-treatment (0.65 ± 0.04%). Moreover, chem. constituents of BEO using NCSD and SD were evaluated and compared. Results show that 62 volatile compounds were identified, and majority of functional compounds in the BEO using NCSD and SD were detected simultaneously, e.g. borneol, β-pinene, and β-cadinene. A significantly higher proportion of compounds with relatively lower mol. weight (MW) ranging from 130 to 150 and higher MW ranging from 205 to 225 were detected in the BEO using NCSD, which may contribute to a stronger flavoring impact and influence the overall flavor profile of the BEO. Therefore, significance of this study is to develop the NCSD as a more effective method than the SD for extracting the BEO from Cinnamomum camphora chvar. Borneol fresh leaves without compromising its quality and remaining the majority of chem. consitutents unchanged.

Industrial Crops and Products published new progress about Cell wall. 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, Product Details of C10H18O.

Referemce:
Alcohol – Wikipedia,
Alcohols – Chemistry LibreTexts

Qin, Zhao published the artcileStructure, rheological, thermal and antioxidant properties of cell wall polysaccharides from Chinese quince fruits, Application of (2R,3S,4S,5R)-2,3,4,5,6-Pentahydroxyhexanal, the main research area is Chaenomeles cell wall polysaccharide structure rheol thermal antioxidant property; Antioxidant activity; Cell wall polysaccharides; Chinese quince; Hemicelluloses; Pectins.

To investigate the composition and structural characteristics of cell wall polysaccharides, three pectic fractions and two hemicellulose fractions, namely water-soluble pectin (WSP), chelator-soluble pectin (CSP), sodium carbonate-soluble pectin (NSP), 1 mol/L KOH soluble hemicellulose (KSH-1) and 4 mol/L KOH soluble hemicellulose (KSH-2), were isolated from Chinese quince fruits. The five fractions exhibited structural and compositional variation. The results showed NSP was the predominant cell wall polysaccharide fraction in the fruit. All pectic fractions had a low degree of esterification (31.7-42.4%). WSP fraction had the highest thermal stability among the five fractions. The polysaccharide chain lengths ranged from 19.4 nm to 121.4 nm. CSP had the highest mol. weight, giving it also the highest solution viscosity. NMR spectra revealed that NSP was composed of RG-I and galacturonic acid main chains, KSH-1 was composed of 1,4-β-D-Xylp backbone attached to 1,5-a-L-Araf units. Among the five fractions, CSP has the highest DPPH radical scavenging activity while KSH-1 has the highest reducing power. This study can contribute to the applications of Chinese quince fruit polysaccharides in food and pharmaceutical industries.

International Journal of Biological Macromolecules published new progress about Cell wall. 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 of (2R,3S,4S,5R)-2,3,4,5,6-Pentahydroxyhexanal.

Referemce:
Alcohol – Wikipedia,
Alcohols – Chemistry LibreTexts