Tag: M.W=300-350

Zhang, Yan published the artcileA comparative study between freeze-dried and spray-dried goat milk on lipid profiling and digestibility, Quality Control of 6217-54-5, the publication is Food Chemistry (2022), 132844, database is CAplus and MEDLINE.

Different drying techniques impart distinguishing characteristics to goat milk, particularly to its fat globules. Here, we investigated the difference between freeze-dried and spray-dried goat milk (FGM and SGM) fat globules on lipid profiling and in vitro infant gastrointestinal digestibility. The former presented higher levels of MUFA (31.76%) and lower cholesterol content (1.20 ¡À 0.02 mg/g). Some important long-chain polyunsaturated triacylglycerols such as POL (16:0/18:1/18:2), PSL (16:0/18:0/18:2), and POO (16:0/18:1/18:1), also had better preservation in FGM. Moreover, we detected more species of lysophospholipid in FGM than SGM, accounting for 2.51% and 0.71% of total phospholipids, resp. More intriguingly, FGM, which has better membrane integrity and larger particle size, showed longer lag during gastric digestion and lower level of final lipolysis throughout gastrointestinal digestion. Therefore, our results showed the effects of different drying techniques on lipid profiling and digestibility of goat milk, providing significant insight for appropriate utilization of goat milk in infant nutrition.

Food Chemistry published new progress about 6217-54-5. 6217-54-5 belongs to catalysis-chemistry, auxiliary class Alkenyl,Carboxylic acid,Aliphatic hydrocarbon chain,Metabolic Enzyme,RAR/RXR,Natural product, name is Docosahexaenoic Acid, and the molecular formula is C6H13N3O2, Quality Control of 6217-54-5.

Referemce:
https://courses.lumenlearning.com/boundless-chemistry/chapter/catalysis/,
Catalysis – Wikipedia

Wu, Bo published the artcileA dual-targeting peptide facilitates targeting anti-inflammation to attenuate atherosclerosis in ApoE^-/- mice, Quality Control of 71989-31-6, the publication is Chemical Communications (Cambridge, United Kingdom) (2022), 58(62), 8690-8693, database is CAplus and MEDLINE.

We report a peptidic dual-targeting drug delivery platform (integrins targeting and self-assembly instructed by matrix metalloproteinases) towards inflamed endothelial cells, which improved the anti-inflammatory ability of the loaded drug (i.e., puerarin) in vitro and thus improved the antiatherogenic effect of the loaded drug (i.e., puerarin) in vivo.

Chemical Communications (Cambridge, United Kingdom) published new progress about 71989-31-6. 71989-31-6 belongs to catalysis-chemistry, auxiliary class Amino acide derivatives,pyrrolidine, name is Fmoc-Pro-OH, and the molecular formula is C13H10O2, Quality Control of 71989-31-6.

Referemce:
https://courses.lumenlearning.com/boundless-chemistry/chapter/catalysis/,
Catalysis – Wikipedia

Sun, Xue-Yi published the artcileReliable folding of hybrid tetrapeptides into short ¦Â-hairpins, Synthetic Route of 71989-31-6, the publication is Chinese Chemical Letters (2022), 33(1), 257-261, database is CAplus.

Five hybrid tetrapeptides, each consisting a central dipeptide segment of ¦Á-amino acid residues flanked by two aromatic ¦Ã-amino acid residues, are found to fold into well-defined ¦Â-hairpin conformations as shown by NMR, computational study, and X-ray structures. The turn loop of this ¦Â-hairpin motif accommodates different two-residue ¦Á-amino acid sequences from the highly flexible Gly-Gly, to the more restricted D-Pro-Gly. The presence of ¦Á-amino acid side chains enhances the stabilities of the ¦Â-hairpins with the exception of D-Pro-Gly-which results in destabilization. Based on this hairpin/turn motif, a variety of different dipeptide sequences of ¦Á-amino acids which rarely occur in ¦Â-turns can be introduced and presented as two-residue loops.

Chinese Chemical Letters published new progress about 71989-31-6. 71989-31-6 belongs to catalysis-chemistry, auxiliary class Amino acide derivatives,pyrrolidine, name is Fmoc-Pro-OH, and the molecular formula is C3H7NO2, Synthetic Route of 71989-31-6.

Referemce:
https://courses.lumenlearning.com/boundless-chemistry/chapter/catalysis/,
Catalysis – Wikipedia

Wang, Peng published the artcileRational design of dual-functional peptide-based chemosensor for sequential detection of Ag⁺ (AgNPs) and S^2- ions by fluorescent and colorimetric changes and its application in live cells, real water samples and test strips, Application of Fmoc-Pro-OH, the publication is Microchemical Journal (2022), 107326, database is CAplus.

A novel bifunctional chemosensor L with excellent fluorescent group FITC labeled at tetrapeptide (CysProGlyHis-NH₂) was designed and developed. L exhibited fluorescent quenching response and unique visual color change for Ag⁺ and AgNPs in aqueous solution The stoichiometry between L and Ag⁺ was confirmed to be 1:1 based on fluorescent titration, Job¡äs plot, ESI-HRMS and theor. calculation studies. In particular, the limit of detection (LOD) of L for the detection of Ag⁺ and AgNPs were calculated as 3.35 nM and 4.57 nM, resp. In addition, the L-Ag complex as a new relay chemosensor could be highly selective detection of S2-via obvious color and fluorescence changes, which could be monitored by the naked eye. The LOD for S^2- was as low as to be 28.17 nM with high sensitivity. Furthermore, L indicated a rapid response (within 50 s), exciting circularity (more than 10 times) and wide pH response range (6 ? 12). Moreover, in view of excellent stability, low cytotoxicity and biocompatibility, we further successfully applied L for Ag⁺, AgNPs and S^2- detection and imaging in living cells, real water samples and test strips.

Microchemical Journal published new progress about 71989-31-6. 71989-31-6 belongs to catalysis-chemistry, auxiliary class Amino acide derivatives,pyrrolidine, name is Fmoc-Pro-OH, and the molecular formula is C9H21NO3, Application of Fmoc-Pro-OH.

Referemce:
https://courses.lumenlearning.com/boundless-chemistry/chapter/catalysis/,
Catalysis – Wikipedia

Guo, X. D. published the artcileA novel thioxanthone-hydroxyalkylphenone bifunctional photoinitiator: Synthesis, characterization and mechanism of photopolymerization, SDS of cas: 119-80-2, the publication is Progress in Organic Coatings (2021), 106214, database is CAplus.

A novel bifunctional photoinitiator (named as TX-EG-IPDI-2959) with thioxanthone and hydroxyalkylphenone moieties was synthesized by the reaction of isophorone diisocyanate with Irgacure 2959 and 2-(2-hydroxyethoxy) thioxanthone. The mol. structure of TX-EG-IPDI-2959 was characterized by ¹H NMR, high-resolution mass spectroscopy, UV-vis and FT-IR. The photochem. behavior of TX-EG-IPDI-2959 was investigated through the photolysis and polymerization of Bu acrylate by UV-vis and HRMS. Compared with the combination of Irgacure 2959 and 2-(2-hydroxyethoxy) thioxanthone, the C-C bond cleavage of hydroxyalkylphenone to produce free radical fragments was effectively done under the irradiation of visible LED light. The obvious intramol. synergistic effect between the hydroxyalkylphenone and thioxanthone moieties has been confirmed based on HRMS anal. of photobleach and photopolymerization In addition, the photopolymerization kinetic of an UV gel and trimethylolpropane triacrylate initiated by TX-EG-IPDI-2959 were also investigated. The plausible photochem. reaction mechanism of TX-EG-IPDI-2959 was proposed.

Progress in Organic Coatings published new progress about 119-80-2. 119-80-2 belongs to catalysis-chemistry, auxiliary class sulfides,Carboxylic acid,Benzene, name is 2,2′-Dithiodibenzoic acid, and the molecular formula is C14H10O4S2, SDS of cas: 119-80-2.

Referemce:
https://courses.lumenlearning.com/boundless-chemistry/chapter/catalysis/,
Catalysis – Wikipedia

Wu, Pengfei published the artcileDoped organic charge-transfer cocrystal with tunable fluorescence of wide band emission, Category: catalysis-chemistry, the publication is Journal of Photochemistry and Photobiology, A: Chemistry (2022), 113727, database is CAplus.

Supramol. crystals with tunable fluorescence emission have been demonstrated for many applications. Guided by quantum chem. calculations, a series of (TCNB)_x(OFN)_1-x(Cor) doped cocrystals were synthesized by charge transfer induced self-assembly with coronene (Cor) as electron donor and octafluoronaphthalene (OFN) or 1,2,4,5-tetracyanobenzene (TCNB) as electron acceptors. Structural similarity between OFN-Cor and TCNB-Cor are necessary for full proportion doping of (TCNB)_x(OFN)_1-x(Cor). Based on exptl. and theor. anal., doped cocrystals can be tuned in photophys. properties (luminescent color, fluorescence lifetime, quantum yield). With the doping ratio increasing, the doped cocrystals emit fluorescent in different colors from blue to yellow and then to orange. Through mol. design to select and synthesize organic fluorescent materials is an efficient strategy to deeply understand their structure-activity relationship, which pave a potential path to develop novel functional supramol. systems.

Journal of Photochemistry and Photobiology, A: Chemistry published new progress about 191-07-1. 191-07-1 belongs to catalysis-chemistry, auxiliary class Electronic Materials, name is Coronene, and the molecular formula is C7H3Cl2NO2S, Category: catalysis-chemistry.

Referemce:
https://courses.lumenlearning.com/boundless-chemistry/chapter/catalysis/,
Catalysis – Wikipedia

Wang, Siyao published the artcileSite-selective itaconation of complex peptides by photoredox catalysis, Recommanded Product: Fmoc-Pro-OH, the publication is Angewandte Chemie, International Edition (2022), 61(5), e202111388, database is CAplus and MEDLINE.

Site-selective peptide functionalization provides a straightforward and cost-effective access to diversify peptides for biol. studies. Among many existing non-invasive peptide conjugations methodologies, photoredox catalysis has emerged as one of the powerful approaches for site-specific manipulation on native peptides. Herein, we report a highly N-termini-specific method to rapidly access itaconated peptides and their derivatives through a combination of transamination and photoredox conditions. This strategy exploits the facile reactivity of peptidyl-dihydropyridine in the complex peptide settings, complementing existing approaches for bioconjugations with excellent selectivity under mild conditions. Distinct from conventional methods, this method utilizes the highly reactive carbamoyl radical derived from a peptidyl-dihydropyridine. In addition, this itaconated peptide can be further functionalized as a Michael acceptor to access the corresponding peptide-protein conjugate.

Angewandte Chemie, International Edition published new progress about 71989-31-6. 71989-31-6 belongs to catalysis-chemistry, auxiliary class Amino acide derivatives,pyrrolidine, name is Fmoc-Pro-OH, and the molecular formula is C8H6ClF3, Recommanded Product: Fmoc-Pro-OH.

Referemce:
https://courses.lumenlearning.com/boundless-chemistry/chapter/catalysis/,
Catalysis – Wikipedia

Wang, Zhangtie published the artcileImpact of interactions between whey protein isolate and different phospholipids on the properties of krill oil emulsions: A consideration for functional lipids efficient delivery, Computed Properties of 6217-54-5, the publication is Food Hydrocolloids (2022), 107692, database is CAplus.

The interactions between different phospholipids (yolk phospholipid, soybean phospholipid, and perilla seed phospholipid) and whey protein isolate (WPI) were studied. Phys. characteristics and bioaccessibility of different emulsions were compared. According to the results of multiple spectroscopy, isothermal titration calorimetry (ITC), and mol. docking, hydrophobic interactions played an important role in the interaction of phospholipid and WPI, enhanced as more unsaturation Dynamic light scattering showed that combination of phospholipids and proteins could decrease particle sizes (from 232.33 ¡À 4.79 nm to 188.59 ¡À 2.61 nm) and improve emulsion stability significantly (from -34.26 ¡À 1.31 mV to -49.13 ¡À 1.91 mV), presenting dose-dependency. Microstructure results indicated that phospholipids would contribute to dispersity and homogeneity of emulsions. Furthermore, the phospholipid-WPI emulsion can be an efficient tool for functional lipid delivery and improving the functional lipid ratios in the zebrafish model. Compared to WPI emulsions, the phospholipid-WPI emulsion group exhibited higher ratios of functional lipids in zebrafish fatty acid compositions (up to 29.41% ¡À 0.87%). In vitro digestion supported that perilla seed phospholipid-WPI emulsions would contribute to a higher bioaccessibility of EPA (from 36.59% ¡À 0.88%-53.08% ¡À 0.96%), DHA (from 36.42% ¡À 1.03%-54.10% ¡À 1.07%) and astaxanthin (from 31.54% ¡À 2.52%-53.31% ¡À 4.05%). Overall, our research can be useful to an efficient delivery system for functional lipids with phospholipid-protein structures.

Food Hydrocolloids published new progress about 6217-54-5. 6217-54-5 belongs to catalysis-chemistry, auxiliary class Alkenyl,Carboxylic acid,Aliphatic hydrocarbon chain,Metabolic Enzyme,RAR/RXR,Natural product, name is Docosahexaenoic Acid, and the molecular formula is C15H21BO2, Computed Properties of 6217-54-5.

Referemce:
https://courses.lumenlearning.com/boundless-chemistry/chapter/catalysis/,
Catalysis – Wikipedia

Liu, Zhiqing published the artcileInvestigation of oyster Crassostrea gigas lipid profile from three sea areas of China based on non-targeted lipidomics for their geographic region traceability, Safety of Docosahexaenoic Acid, the publication is Food Chemistry (2022), 132748, database is CAplus and MEDLINE.

The present study sought to analyze the lipid profiles of oyster Crassostrea gigas from Yellow Sea (YS), East China Sea, and South China Sea (SCS) through the untargeted lipidomics strategy based on UPLC-Q-Exactive Orbitrap mass spectrometry and multivariate statistics. The results elucidated that geog. differences had profound effects on the lipid content, composition, and lipid mol. profiles. Notably, oysters from the YS group contained the highest lipid content, including triacylglycerol, diacylglycerols, and the majority of phospholipid mol. species, while oysters from the ECS group contained most of the phosphatidylcholine species and the SCS group contained most of the sphingolipid species. Totally, 1155 lipid mol. species belonging to 21 subclasses were identified; of them, 45 lipid mol. species could serve as differential marker for lipid of oysters from different sea areas. Overall, lipidomics could be a potential approach for discrimination of lipid characters between marine shellfishes for geog. origin traceability.

Food Chemistry published new progress about 6217-54-5. 6217-54-5 belongs to catalysis-chemistry, auxiliary class Alkenyl,Carboxylic acid,Aliphatic hydrocarbon chain,Metabolic Enzyme,RAR/RXR,Natural product, name is Docosahexaenoic Acid, and the molecular formula is C22H32O2, Safety of Docosahexaenoic Acid.

Referemce:
https://courses.lumenlearning.com/boundless-chemistry/chapter/catalysis/,
Catalysis – Wikipedia

Huang, Zhen published the artcileSelective removal mechanism of novel Zr-based metal organic framework adsorbents for gold ions from aqueous solutions, Product Details of C14H10O4S2, the publication is Chemical Engineering Journal (Amsterdam, Netherlands) (2020), 123343, database is CAplus.

A novel metal organic framework absorbent was synthesized by one step method using 2,2′-dithiodibenzoic acid as organic linker for efficient and selective recovery of Au(III) from aqueous solution The adsorbent were detected by scanning electron microscope, X-ray diffraction and zeta potential instruments. Its performance was tested by batch experiments The adsorption isotherm conforms to the Langmuir model, demonstrating that the adsorption process is the uniform monolayer adsorption. The kinetic model is well fitted to the pseudo second-order dynamics model. The maximum adsorption capacity was 1119 mg/g at pH = 2. High temperatures can promote the absorption process. The five adsorption and desorption cycles indicate that the adsorbent has good repeatability for Au(III) adsorption. It could selectively adsorbed Au(III) from wastewater. The adsorption derive from chelation and reduction The DFT and XPS results show that Au(III) is mainly adsorbed on the adsorbent by coupling with the S atom. These results indicate that it has a high potential to remove Au(III) from industrial wastewater.

Chemical Engineering Journal (Amsterdam, Netherlands) published new progress about 119-80-2. 119-80-2 belongs to catalysis-chemistry, auxiliary class sulfides,Carboxylic acid,Benzene, name is 2,2′-Dithiodibenzoic acid, and the molecular formula is C14H10O4S2, Product Details of C14H10O4S2.

Referemce:
https://courses.lumenlearning.com/boundless-chemistry/chapter/catalysis/,
Catalysis – Wikipedia