Category: alcohols-buliding-blocks

Yang, Pan published the artcileExposure profiles and predictors of a cocktail of environmental chemicals in Chinese men of reproductive age, Formula: C12H10O4S, the publication is Chemosphere (2022), 134337, database is CAplus and MEDLINE.

Personal care products, such as additives, have raised widespread concerns about the potential threat to male reproductive health. The spermatogenesis in humans lasts for approx. 90 days, the average levels of these chems. remain unclear during spermatogenesis. In our study, we pooled urine samples from each man during the days of 1-15, 16-31, 32-63, and ≥64, and examined exposure to 48 typical additive chems. By principal component anal. (PCA), k-means clustering, and Spearman’s rank correlations, we then identified 6 PC scores and 4 clusters based on profiles of these chems. Some industrial, com. or structural similar chems. (e.g., phthalates) were significantly correlated compared to unrelated chems. (e.g., benzophenone). PCA scores were associated with individual lifestyles (e.g., household income, tea consumption, and drinking tap water). Distinct exposure components and exposure patterns of personal care products may help the reproductive health assessment of men. We suggested more concerns for widespread exposure to these chems. for men.

Chemosphere published new progress about 80-09-1. 80-09-1 belongs to alcohols-buliding-blocks, auxiliary class Ploymers, name is 4,4′-Sulfonyldiphenol, and the molecular formula is C8H10O2, Formula: C12H10O4S.

Referemce:
https://en.wikipedia.org/wiki/Alcohol,
Alcohols – Chemistry LibreTexts

Liu, Junfeng published the artcileMannosylated PEGylated-Polyethyleneimine as efficient CpG oligodeoxynucleotide carriers for efficient dendritic cell targeting delivery and activation, Name: (2R,3S,4S,5S,6R)-2-(Hydroxymethyl)-6-(4-isothiocyanatophenoxy)tetrahydro-2H-pyran-3,4,5-triol, the publication is Journal of Biomedical Nanotechnology (2019), 15(7), 1454-1467, database is CAplus and MEDLINE.

CpG ODN acts as a ′pathogen-associated′ mol. pattern that is recognized by intracellular Toll-like receptor 9 and can induce a robust dendritic cells (DCs) activation to against various diseases. However, the CpG ODN is restricted with critical defects of easily enzymolysis and negligible phagocytosis. To overcome these issues, a simpler and competent nanocarrier of mannose modified PEGylated branched PEI₂₅k (PEI-PEG-Man) was designed to achieve excellent DCsspecific delivery of CpG. Nanoparticles of PEI-PEG-Man encapsulating CpG (PEI-PEG-Man@CpG) possessed elevated gene loading capacity, biol. stability and admirable anti-enzymolysis ability. PEI-PEG-Man@CpG could be selectively uptake by DCs through a receptor-mediated endocytosis, which generates a potent immunostimulatory activity on bone marrow derived dendritic cells (BMDCs) evidenced by significantly upregulation of the pro and anti-inflammatory cytokines (TNF-α, IL-6) and the co-stimulatory mols. (CD40, CD80, CD86, and MHC class II) on BMDCs in vitro. More importantly, the results of in vivo targeting assay showed that PEI-PEG-Man@CpG nanoparticles could remarkably boost CpG accumulation in lymph lodes upon s.c. administration in C57BL/6 mice, which facilitated maturation of DCs and productions of anti-inflammatory cytokines. Our results suggested that PEI-PEG-Man@CpG nanoparticles, in the future, might function as a powerful vector for ex vivo engineering to promote DC targeting and maturation, which enhance vaccine efficiency against cancer or infectious disease.

Journal of Biomedical Nanotechnology published new progress about 96345-79-8. 96345-79-8 belongs to alcohols-buliding-blocks, auxiliary class Sugar Units,Gal and Man, name is (2R,3S,4S,5S,6R)-2-(Hydroxymethyl)-6-(4-isothiocyanatophenoxy)tetrahydro-2H-pyran-3,4,5-triol, and the molecular formula is C13H15NO6S, Name: (2R,3S,4S,5S,6R)-2-(Hydroxymethyl)-6-(4-isothiocyanatophenoxy)tetrahydro-2H-pyran-3,4,5-triol.

Referemce:
https://en.wikipedia.org/wiki/Alcohol,
Alcohols – Chemistry LibreTexts

Tao, Xueqin published the artcileInteractions between polycyclic aromatic hydrocarbons (PAHs)-degrading strain Sphingomonas sp. GY2B and nano bamboo charcoal, Formula: C11H8O3, the publication is Desalination and Water Treatment (2021), 221-228, database is CAplus.

As the global consumption of engineered nanomaterials such as nano bamboo charcoal (NBC) steadily increases, so does the potential for their release into the environment through human activity. In this study, the aggregation and dispersion of NBC, and its effect on GY2B, a polycyclic aromatic hydrocarbons (PAHs)-degrading strain of Sphingomonas sp., were investigated. Results showed that NBC aggregation was affected by both its concentration and GY2B, while the zeta potential of NBC was mainly influenced by GY2B and less so by its concentration With the addition of NBC, the biodegradation rate of phenanthrene was enhanced while GY2B growth was inhibited initially, however, cell growth inhibition was attenuated and eliminated with NBC aggregation and sedimentation which adsorbed toxic metabolites, such as 1-hydroxy-2-naphthoic acid, eventually resulting in more favorable conditions. This work indicates that NBC has the potential to be used in environmental remediation.

Desalination and Water Treatment published new progress about 86-48-6. 86-48-6 belongs to alcohols-buliding-blocks, auxiliary class Organic Pigment,Natural product, name is 1-Hydroxy-2-naphthoic acid, and the molecular formula is C28H29NO4, Formula: C11H8O3.

Referemce:
https://en.wikipedia.org/wiki/Alcohol,
Alcohols – Chemistry LibreTexts

Cui, Feng-xia published the artcileLiquor recovery process for vitamin C, COA of Formula: C6H10O7, the publication is Xiandai Huagong (2014), 34(3), 67-70, 72, database is CAplus.

A liquor recovery process for crystallization mother liquor of vitamin C is developed with the recovery of 2-keto-L-Gu salt as a process parameter. According to the characteristics of the mother liquor of vitamin C, vitamin C and 2-keto-L-Gu salt can be generated by adding a base to the mother liquor. Then, 2-keto-L-Gu salts and a sodium salt solution of vitamin C can be obtained by filtrating off 2-keto-L-Gu salt based on the different solubility The influences of proportion of a concentrated salt solution, the precipitation temperature and time on the recovery of 2-keto-L-Gu salt are investigated. The recovery of 2-keto-L-Gu salt can reach above 89.5% and the total yield of vitamin C is above 3% under the following conditions: 50% of optimal proportion of concentrate, 15°C of precipitation temperature and 6.5 h of precipitation time. The product quality can meet the standards, which indicates that the liquor recovery process can bring high economic efficiency and is worth promoting the industrial production

Xiandai Huagong published new progress about 526-98-7. 526-98-7 belongs to alcohols-buliding-blocks, auxiliary class Sugar Units,Other Sugar Units, name is (3S,4R,5S)-3,4,5,6-Tetrahydroxy-2-oxohexanoic acid, and the molecular formula is C6H10O7, COA of Formula: C6H10O7.

Referemce:
https://en.wikipedia.org/wiki/Alcohol,
Alcohols – Chemistry LibreTexts

Plohl, Olivija published the artcileMesoporous silica nanoparticles modified with N-rich polymer as a potentially environmentally-friendly delivery system for pesticides, Quality Control of 42822-86-6, the main research area is mesoporous silica nanoparticle nitrogen polymer pesticide.

The focus of the article is on the design of environmentally-friendly nanocarriers for improved controlled pesticide release, which have low environmental toxicity and nitrogen elemental composition as the most important components of fertilizers. In this study, a novel delivery system was developed for post-loading a biopesticide to mesoporous silica nanoparticles (MeSiNPs) functionalized with N-rich derived polymer. Initially, MeSiNPs were synthesized by the template-assisted method, which yielded MeSiNPs in the nm range, together with highly ordered mesoporous channels with a pore size of 2.9 nm. Subsequently, the water-soluble branched polyethyleneimine (bPEI) was derived systematically with epoxy organosilicate, and functionalized on MeSiNPs to create a source of N-nutrients. The carefully designed novel nano-carrier was analyzed by several physicochem. and structural analyses, which confirmed the successful attachment of the derived bPEI to MeSiNPs. Further, the novel nano-synthesized system was used as a delivery for the model biopesticide citridiol. The loading efficiency of citridiol in/on MeSiNPs@bPEI was 19%, while the loading capacity of citridiol was proven to be 5 mg biopesticide/1 mg MeSiNPs@bPEI. The MeSiNPs@bPEI with loaded citridiol was investigated for kinetic release. The system showed a fast initial release behavior in the first 300 min, which was continued by slow release behavior and started to reach equilibrium after 10 days. It has been shown that the MeSiNPs@bPEI showed an excellent potential for use in agrochem. applications, not only as a nanocarrier for controlled and slow pesticide release, but may also act as a soil improver by providing Si and N as key nutrient sources.

Microporous and Mesoporous Materials published new progress about Biopesticides. 42822-86-6 belongs to class alcohols-buliding-blocks, name is 2-(2-Hydroxypropan-2-yl)-5-methylcyclohexanol, and the molecular formula is C10H20O2, Quality Control of 42822-86-6.

Referemce:
Alcohol – Wikipedia,
Alcohols – Chemistry LibreTexts

Shivaraja, S. J. published the artcileFaster switching polymer dispersed liquid crystal devices incorporated with functionalized SWCNTs, Category: alcohols-buliding-blocks, the main research area is carbon nanotube polymer dispersed liquid crystal electrooptical property.

Polymer dispersed liquid crystals (PDLCs) were fabricated using acrylate-based UV curable monomer and a low birefringent nematic liquid crystal, 5PCH, by polymerization induced phase separation method. The effect of ODA-SWCNT dispersion on electro-optical properties of PDLC was investigated and compared with the undoped PDLC. The total response time reduces by 70%, and threshold voltage decreases by 42% in PDLC prepared with 0.015 wt% ODA-SWCNT nanocomposites of 5PCH, compared to the PDLC prepared with pure 5PCH. The optical transparency and sharpness of the image in ON-state was found to be remarkably better in the ODA-SWCNT incorporated PDLC as compared to the PDLC prepared with pure 5PCH.

Journal of Molecular Liquids published new progress about Birefringence. 7575-23-7 belongs to class alcohols-buliding-blocks, name is Pentaerythritol tetra(3-mercaptopropionate), and the molecular formula is C17H28O8S4, Category: alcohols-buliding-blocks.

Referemce:
Alcohol – Wikipedia,
Alcohols – Chemistry LibreTexts

Martinez, Alina M. published the artcilePermanent and reversibly programmable shapes in liquid crystal elastomer microparticles capable of shape switching, Computed Properties of 7575-23-7, the main research area is liquid crystal elastomer microparticle thiol Michael dispersion polymerization.

Reversibly programmable liquid crystal elastomer microparticles (LCEMPs), formed as a covalent adaptable network (CAN), with an average diameter of 7μm ± 2μm, were synthesized via a thiol-Michael dispersion polymerization The particles were programmed to a prolate shape via a photoinitiated addition-fragmentation chain-transfer (AFT) exchange reaction by activating the AFT after undergoing compression. Due to the thermotropic nature of the AFT-LCEMPs, shape switching was driven by heating the particles above their nematic-isotropic phase transition temperature (TNI). The programmed particles subsequently displayed cyclable two-way shape switching from prolate to spherical when at low or high temperatures, resp. Furthermore, the shape programming is reversible, and a second programming step was done to erase the prolate shape by initiating AFT at high temperature while the particles were in their spherical shape. Upon cooling, the particles remained spherical until addnl. programming steps were taken. Particles were also programmed to maintain a permanent oblate shape. Addnl., the particle surface was programmed with a diffraction grating, demonstrating programmable complex surface topog. via AFT activation.

Soft Matter published new progress about Birefringence. 7575-23-7 belongs to class alcohols-buliding-blocks, name is Pentaerythritol tetra(3-mercaptopropionate), and the molecular formula is C17H28O8S4, Computed Properties of 7575-23-7.

Referemce:
Alcohol – Wikipedia,
Alcohols – Chemistry LibreTexts

Li, Ying published the artcileMicroscopic ordered structure compactness and intrinsic thermal conductivity improvement of dispersed liquid crystal films of flexible epoxy-thiol polymers, Synthetic Route of 7575-23-7, the main research area is epoxy thiol flexible polymer liquid crystal film dispersibility; thermal mech property.

Flexible epoxy-thiol polymers were fabricated by the reaction between N,N-diglycidyl-4-glycidyloxyaniline (NDGA), poly(propylene glycol)diglycidyl ether (PGDE) and thiol curing agent with different functionality including 3,6-dioxa-1,8-octanedithiol (DET), pentaerythritol tetra(3-mercaptopropionate) (PETMP) and trimethylolpropane tris(3-mercaptopropionate) (TTMP). Liquid crystal monomer (LCM) was uniformly dispersed into epoxy-thiol polymers to prepare dispersed liquid crystal films of flexible epoxy-thiol polymers (E-PDLC films). The elongation at break and tensile strength of E-PDLC films increased to 195.9% and 25 MPa resp. LCM showed favorable dispersibility and maintain ordered orientation of liquid crystal in E-PDLC films. The degree of order in mol. chain of epoxy-thiol polymers was increased, and chain interaction of epoxy-thiol polymers and LCM was enhanced by hydrogen-bonding. In E-PDLC films, with different thiol curing agent and LCM addition, different microscopic-ordered structure formed: ordered-layered structures and denser squamous ordered structures. Both of these two microscopic-ordered structures formed by different thiol curing agent and the addition of LCM, and afforded continuous phonon transfer paths. The thermal conductivity of E-PDLC films is up to 0.70 W m-1 K-1. This work offered a new way to design flexible epoxy resin and intrinsic thermal conductive polymers.

Materials Today Communications published new progress about Birefringence. 7575-23-7 belongs to class alcohols-buliding-blocks, name is Pentaerythritol tetra(3-mercaptopropionate), and the molecular formula is C17H28O8S4, Synthetic Route of 7575-23-7.

Referemce:
Alcohol – Wikipedia,
Alcohols – Chemistry LibreTexts

Wang, Yunpeng published the artcileLiquid Crystal Elastomer Twist Fibers toward Rotating Microengines, HPLC of Formula: 7575-23-7, the main research area is liquid crystal elastomer twist fiber preparation rotating microengine property; liquid crystal elastomers; rotating microengines; smart materials; stimuli-responsiveness; twist fibers.

Untethered twist fibers do not require end-anchoring structures to hold their twist orientation and offer simple designs and convenient operation. The reversible responsiveness of these fibers allows them to generate torque and rotational deformation continuously upon the application of external stimuli. The fibers therefore have potential in rotating microengines. In practical applications, high torque and rotational deformation are desirable to meet work capacity requirements. However, the simultaneous endowment of reversible responsiveness and high rotational performance to untethered twist fibers remains a challenge. In this study, a liquid crystal elastomer twist fiber (LCETF) is designed and developed with a fixed twisting alignment of mesogens to provide untethered and reversible responsiveness. Outstanding rotational performance can be achieved when the mesogenic orientation is disrupted through heat triggering. Owing to the significant intrinsic contractile ratio of the LCE material, the rotational deformation of the LCETF can reach 243.6° mm-1. More importantly, the specific torque can reach 10.1 N m kg-1, which exceeds previously reported values. In addition, the LCETF can be exploited in a rotating microengine to convert heat into electricity with an induction voltage as high as 9.4 V. This work broadens the applications of LCEs for energy harvesters, micromachines, and soft robots.

Advanced Materials (Weinheim, Germany) published new progress about Birefringence. 7575-23-7 belongs to class alcohols-buliding-blocks, name is Pentaerythritol tetra(3-mercaptopropionate), and the molecular formula is C17H28O8S4, HPLC of Formula: 7575-23-7.

Referemce:
Alcohol – Wikipedia,
Alcohols – Chemistry LibreTexts

Yang, Haihong published the artcileDegradation models, structure, rheological properties and protective effects on erythrocyte hemolysis of the polysaccharides from Ribes nigrum L, Related Products of alcohols-buliding-blocks, the main research area is Ribes nigrum polysaccharide structure rheol erythrocyte hemolysis protective effect; Blackcurrant polysaccharide; Degradation model; Erythrocyte hemolysis; Rheological properties; Structure; Ultrasonic treatment.

The polysaccharides from blackcurrant (Ribes nigrum L.) fruits were degraded by ultrasonic irradiation Results showed that viscosity-average mol. weight decreased with increasing ultrasonic time or power. The degradation was fitted to the second-order kinetics model and midpoint chain scission model. Gas chromatog. anal. demonstrated that the native polysaccharide and three degraded polysaccharides were composed of the same monosaccharides but in different ratios. Fourier transform IR and NMR spectroscopic analyses revealed the presence of α-, β-pyranose rings and the same six sugar residues in the four blackcurrant polysaccharides. Compared to the native polysaccharide, three degraded polysaccharides displayed better rheol. properties and stronger protective effects against erythrocyte hemolysis. Collectively, the results support the potential utility of blackcurrant polysaccharides as natural antioxidants.

International Journal of Biological Macromolecules published new progress about Black currant. 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, Related Products of alcohols-buliding-blocks.

Referemce:
Alcohol – Wikipedia,
Alcohols – Chemistry LibreTexts