Category: alcohols-buliding-blocks

Khan, Nabil Z published the artcileA Higher Altitude Is Associated with Increased Incidence of Infections following Primary Total Hip Arthroplasty., Computed Properties of 124-76-5, the main research area is Altitude; Costs; Database; Medicare; Total hip arthroplasty.

PURPOSE: The purpose of this study was to evaluate whether patients undergoing primary total hip arthroplasty (THA) at a higher elevation have higher rates of: 1) in-hospital length of stay (LOS); 2) surgical site infections (SSIs); 3) periprosthetic joint infections (PJIs); and 4) costs. MATERIALS AND METHODS: The Medicare claims database was used to identify patients who underwent primary THA at an altitude higher than 4,000 feet (ft). High-altitude patients were matched to patients who underwent primary THA at an altitude less than 100 ft, yielding 24,958 and 124,765 patients respectively. Outcomes that were assessed included in-hospital LOS, SSIs, PJIs, and costs of care. A P-value less than 0.001 was considered statistically significant. RESULTS: Patients in the study group had significantly longer in-hospital LOS (4 days vs 3 days, P<0.0001). In addition, patients in the study group had a significantly higher incidence and odds of developing SSIs (1.16% vs 0.86%; odds ratio [OR], 1.34; P<0.0001) and PJIs (0.91% vs 0.58%; OR, 1.56; P<0.0001) within 90-days following the index procedure, compared to matched controls. Higher altitude patients incurred higher day of surgery ($16,139.76 vs $15,279.42; P<0.0001) and 90-day costs ($18,647.51 vs $16,401.62; P<0.0001). CONCLUSION: This study demonstrated that primary THA procedures performed at an elevation higher than 4,000 ft are associated with longer in-hospital LOS, higher rates of SSIs, PJIs, and costs of care. Orthopedists and other healthcare professionals can use this information to provide adequate education for these patients regarding the potential complications that may occur following their procedure. Hip & pelvis published new progress about Altitude; Costs; Database; Medicare; Total hip arthroplasty. 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, Computed Properties of 124-76-5.

Referemce:
Alcohol – Wikipedia,
Alcohols – Chemistry LibreTexts

Li, Miaosi published the artcileAutomated Femtoliter Droplet-Based Determination of Oil-Water Partition Coefficient, Application of n-Octanol, the main research area is femtoliter droplet oil water partition coefficient.

The oil-water partition coefficient of organic compounds is an essential parameter for the determination of their behaviors in environments, food, drug delivery, and biomedical systems, just to name a few. In this work, we establish a highly efficient approach to quantify the partition/distribution coefficient using surface femtoliter droplets. In our approach, droplets of 1-octanol were produced on the surface of a solid substrate in contact with the flow of an aqueous solution of the analyte. The analyte was rapidly enriched in the droplets from the flow and reached the partition equilibrium in a few seconds. The entire procedure was automated by continuous solvent exchange, and the analyte partition in the droplets was quantified from the in situ UV-vis spectrum collected by a microspectrophotometer. Our approach was validated for several substances with the octanol-water partition/distribution coefficient ranging from -1.5 to 4, where our results were in good agreement with the values reported in the literature. This method took ∼3 min to detect one analyte with the volume of the organic solvent at ∼50 μL. Thus, our surface droplet platform can greatly minimize the consumption of both solvent and analytes and can shorten the time for the determination of the partition of new compounds, which overcomes the drawbacks of the traditional shake-flask method and presents excellent reproducibility, high accuracy, cost-effectiveness, and labor-saving operation. The highly efficient micro/nanoextn., partition, and real-time detection enabled by the surface droplets has the potential for many other high-throughput applications.

Analytical Chemistry (Washington, DC, United States) published new progress about Drops. 111-87-5 belongs to class alcohols-buliding-blocks, name is n-Octanol, and the molecular formula is C8H18O, Application of n-Octanol.

Referemce:
Alcohol – Wikipedia,
Alcohols – Chemistry LibreTexts

Linnartz, Christian J. published the artcileAbout a Membrane with Microfluidic Porous-Wall Channels of Cylindrical Shape for Droplet Formation, Formula: C8H18O, the main research area is microfluidic droplet formation.

A low-energy emulsification process is hollow-fiber emulsification. In this process, the lumen diameter of the membrane mostly determines the droplet size. To gain smaller droplets, approaches for downsizing the inner diameter of membranes have to be carried out. In this work, we describe a new method for the fabrication of parallel microfluidic porous-wall channels of a homogeneous cylindrical shape with lumen diameters down to 7μm. Parallel and sym. porous-wall channels are induced into polyvinylidene fluoride membranes during the casting process. The technique comprises liquid-induced phase separation and phase-separation micromolding using thin glass and carbon fibers as molds and an inhouse designed tool to position the fibers. The channel positioning and alignment are verified within this work. We show and investigate the droplet formation in these porous-wall channels via hollow-fiber emulsification. The formed droplets are very small in diameter and size distribution. The droplet formation at varying flow rates and channel diameters is examined in detail. Moreover, an area of sufficient operating conditions is given using Weber and capillary numbers As a numbering-up approach, we show the simultaneous formation of spherical droplets in two parallel channels. With the proposed membrane fabrication using micromolding, we push the downscaling approach of hollow-fiber emulsification to lower micron ranges of the channel diameter With these small channels, droplets with a diameter down to 25μm were produced, which are more attractive for most applications.

Langmuir published new progress about Drops. 111-87-5 belongs to class alcohols-buliding-blocks, name is n-Octanol, and the molecular formula is C8H18O, Formula: C8H18O.

Referemce:
Alcohol – Wikipedia,
Alcohols – Chemistry LibreTexts

Jiang, Jieke published the artcileContinuous High-Throughput Fabrication of Architected Micromaterials via In-Air Photopolymerization, SDS of cas: 7575-23-7, the main research area is throughput fabrication architected micromaterial indium air photopolymerization; in-air photopolymerization; liquid jets; microfibers; microparticles; shape control.

Recent advances in optical coding, drug delivery, diagnostics, tissue engineering, shear-induced gelation, and functionally engineered rheol. crucially depend on microparticles and microfibers with tunable shape, size, and composition However, scalable manufacturing of the required complex micromaterials remains a long-standing challenge. Here in-air polymerization of liquid jets is demonstrated as a novel platform to produce microparticles and microfibers with tunable size, shape, and composition at high throughput (>100 mL h-1 per nozzle). The polymerization kinetics is quant. investigated and modeled as a function of the ink composition, the UV light intensity, and the velocity of the liquid jet, enabling engineering of complex micromaterials in jetting regimes. The size, morphol., and local chem. of micromaterials are independently controlled, as highlighted by producing micromaterials using 5 different photopolymers as well as multi-material composites. Simultaneous optimization of these control parameters yields rapid fabrication of stimuli-responsive Janus fibers that function as soft actuators. Finally, in-air photopolymerization enables control over the curvature of printed droplets, as highlighted by high-throughput printing of microlenses with tunable focal distance. The combination of rapid processing and tunability in composition and architecture opens a new route toward applications of tailored micromaterials in soft matter, medicine, pharmacy, and optics.

Advanced Materials (Weinheim, Germany) published new progress about Drugs. 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

Sabatino, Spencer J. published the artcilePredicting octanol/water partition coefficients using molecular simulation for the SAMPL7 challenge: comparing the use of neat and water saturated 1-octanol, Category: alcohols-buliding-blocks, the main research area is octanol water drug like compound partition mol simulation saturation; Partition coefficient; SAMPL7; Solvation free energy; log P.

Blind predictions of octanol/water partition coefficients at 298.15 K for 22 drug-like compounds were made for the SAMPL7 challenge. The octanol/water partition coefficients were predicted using solvation free energies computed using mol. dynamics simulations, wherein we considered the use of both pure and water-saturated 1-octanol to model the octanol-rich phase. Water and 1-octanol were modeled using TIP4P and TrAPPE-UA, resp., which have been shown to well reproduce the exptl. mutual solubility, and the solutes were modeled using GAFF. After the close of the SAMPL7 challenge, we addnl. made predictions using TIP4P/2005 water. We found that the predictions were sensitive to the choice of water force field. However, the effect of water in the octanol-rich phase was found to be even more significant and non-negligible. The effect of inclusion of water was addnl. sensitive to the chem. structure of the solute.

Journal of Computer-Aided Molecular Design published new progress about Drugs. 111-87-5 belongs to class alcohols-buliding-blocks, name is n-Octanol, and the molecular formula is C8H18O, Category: alcohols-buliding-blocks.

Referemce:
Alcohol – Wikipedia,
Alcohols – Chemistry LibreTexts

Zawala, Jan published the artcileSynergism between Cationic Alkyltrimethylammonium Bromides (CnTAB) and Nonionic n-Octanol in the Foamability of Their Mixed Solutions, COA of Formula: C8H18O, the main research area is alkyltrimethylammonium bromide octanol foamability.

In this study, the foamability of pure solutions of alkyltrimethylammonium bromides (CnTAB with n = 8, 12, and 16) of various concentrations and their mixtures with n-octanol was studied. It was found from the results that n-octanol behaved as a foamability enhancer, depending on the CnTAB solution concentration A similar foam height was obtained in CnTAB/octanol systems compared to pure CnTAB solutions with a greatly reduced amount of cationic surfactants. This synergistic effect between CnTAB and n-octanol was quite significant, and it could be observed for systems where the CnTAB concentration differed even by two orders of magnitude. Such behavior was observed only below some characteristic concentration of CnTAB, called a critical synergistic concentration (CSC), above which the synergistic effect was either no longer visible or significantly reduced. Moreover, it was found that the presence of n-octanol affected only the solution foamability without significant changes in the stability of the foams. A possible origin of this effect was analyzed and discussed on the basis of the magnitude of the surface elasticity forces induced in the foam films during the foam generation period and while operating during foam decay.

Industrial & Engineering Chemistry Research published new progress about Foams. 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

Celik, Zeynep Dilan published the artcileThe influence of selected autochthonous Saccharomyces cerevisiae strains on the physicochemical and sensory properties of narince wines, Name: 3-(Methylthio)propan-1-ol, the main research area is Saccharomyces physicochem sensory property.

Vitis vinifera cv.Narince is a Turkish native white grape variety. In this study, volatile and sensory properties of Narince wines that are produced with autochthonous Saccharomyces cerevisiae (S. cerevisiae) strains and com. strain were compared. Autochthonous yeast strains 1044 (MG017575), 1088 (MG017577), and 1281 (MG017581) were previously isolated from spontaneous fermentations of Narince grapes. Volatile compounds formed in wines were extracted using a liquid-liquid extraction method and determined by GC-MS-FID. All yeast strains fermented Narince grape juice to dryness. The differences between the volatile profiles of the yeast strains were determined Wines fermented with autochthonous strains 1281 and 1044 produced a higher amount of acetates and Et esters. While the highest concentrations of Et hexanoate and hexyl acetate were found in wine fermented with 1044, the highest concentrations of Et octanoate, Et decanoate, isoamyl acetate, and 2-phenylethyl acetate were found in wine fermented with strain 1281. Also, the highest contents of 2-Ph ethanol and linalool were found in wine fermented with strain 1281. According to sensory anal., the wine fermented with 1281 achieved the best scores in floral and fruity attributes, as well as balance and global impression. The data obtained in the present study showed that autochthonous yeast strains affect the final physicochem. composition and sensory profile of Narince wines.

Fermentation published new progress about Grape. 505-10-2 belongs to class alcohols-buliding-blocks, name is 3-(Methylthio)propan-1-ol, and the molecular formula is C4H10OS, Name: 3-(Methylthio)propan-1-ol.

Referemce:
Alcohol – Wikipedia,
Alcohols – Chemistry LibreTexts

Simo, G. published the artcileMalolactic fermentation induced by silica-alginate encapsulated Oenococcus oeni with different inoculation regimes, HPLC of Formula: 97-67-6, the main research area is grape silica alginate Oenococcus wine production malolactic fermentation.

Background and Aims : The encapsulation of Oenococcus oeni into silica-alginate (Si-ALG) gels has been previously confirmed as a suitable strategy for a successful malolactic fermentation (MLF). The aim of this study was to evaluate the effect of two inoculation strategies (simultaneous vs sequential) on the performance of MLF with encapsulated O. oeni under winemaking conditions. Methods and Results : Sequential inoculation of Si-ALG biocapsules successfully achieved a complete MLF in high ethanol wines, while free and ALG encapsulated bacteria failed. A simultaneous inoculation with Si-ALG biocapsules provided a significant reduction in time to complete MLF in high sugar and low pH musts. The regime of inoculation did not modify the chem. composition of the wines. Conclusions : Either sequential or simultaneous inoculation of Si-ALG biocapsules constitute an effective alternative to free bacteria to undertake MLF under stressful conditions. Significance of the Study : Effective winemaking protocols based on sequential or simultaneous induction of MLF with inoculated Si-ALG encapsulated O. oeni have been accomplished. These are of potential interest for winemaking in both warm and cool regions.

Australian Journal of Grape and Wine Research published new progress about Grape. 97-67-6 belongs to class alcohols-buliding-blocks, name is (S)-2-hydroxysuccinic acid, and the molecular formula is C4H6O5, HPLC of Formula: 97-67-6.

Referemce:
Alcohol – Wikipedia,
Alcohols – Chemistry LibreTexts

Lyu, Jiaheng published the artcileCharacterization of the key aroma compounds in marselan wine by gas chromatography-olfactometry, quantitative measurements, aroma recombination, and omission tests, Safety of 3-(Methylthio)propan-1-ol, the main research area is Vitis red wine aroma compound; AEDA; GC × GC-TOF-MS; GC-O; Marselan wine; OAVs; aroma reconstitution; omission tests.

Key odorants of red wine made from the hybrid grapes of Marselan (Vitis vinifera L.) were isolated by solid-phase extraction (SPE) and explored by gas chromatog.-olfactometry (GC-O) anal. Application of aroma extract dilution anal. (AEDA) revealed 43 odor-active compounds, and 31 odorants among them were detected with flavor dilution (FD) factors ranging from 9 to 2187. Comprehensive two-dimensional gas chromatog. and time-of-flight mass spectrometry (GC × GC-TOF-MS) were exploited to quantitate the aroma-active compounds with FD ≥9. The identification indicated β-damascenone as having the highest FD factors, followed by eugenol, 2,3-butanedione, citronellol, 4-hydroxy-2,5-dimethyl-3(2H)-furanone, phenethyl acetate, guaiacol, and 2-methoxy-4-vinylphenol. A total of 21 compounds were found to have odor activity values (OAVs) >1.0. Aroma reconstitution validation experiments showed a good similarity of blackberry, green pepper, honey, raspberry, caramel, smoky, and cinnamon aroma attributes between the original Marselan wine and the reconstructed wine. In addition, omission tests were carried out to further determine the contribution of odorants to the overall aroma.

Molecules published new progress about Grape. 505-10-2 belongs to class alcohols-buliding-blocks, name is 3-(Methylthio)propan-1-ol, and the molecular formula is C4H10OS, Safety of 3-(Methylthio)propan-1-ol.

Referemce:
Alcohol – Wikipedia,
Alcohols – Chemistry LibreTexts

Purohit, Ajay published the artcileSynthesis and Biological Evaluation of Pyridazinone Analogues as Potential Cardiac Positron Emission Tomography Tracers, Category: alcohols-buliding-blocks, the main research area is fluorinated pyridazinone preparation cardiac positron emission tomog tracer SAR; mitochondrial complex 1 inhibitor fluorinated pyridazinone preparation SAR; imaging PET tracer fluorinated pyridazinone preparation structure activity relationship.

A series of fluorinated pyridazinone derivatives, e.g. I [R1 = H, R2 = CH2(CH2)2CH2F, O(CH2)2CH2F, CH2CH2CHFCH3, etc.; R1 = D, R2 = CH2OCD2CD2F], with IC50 values ranging from 8 to 4000 nM for the mitochondrial complex 1 (MC1) have been prepared Structure-activity relationship (SAR) assessment indicated preference of the fluorine label to be incorporated on an alkyl side chain rather than directly on the pyridazinone moiety. Tissue distribution studies of a series of analogs ([18F]I) in Sprague-Dawley (SD) rats identified I (R1= H, R2 = CH2OCH2CH218F) (II) as the most promising radiotracer with high uptake in cardiac tissue (3.41%ID/g; 30 min post injection) in addition to favorable heart to nontarget organ distribution ratios. MicroPET images of SD rats and nonhuman primates after II administration allowed easy assessment of the myocardium through 60 min with minimal lung or liver interference.

Journal of Medicinal Chemistry published new progress about Heart. 6214-45-5 belongs to class alcohols-buliding-blocks, name is (4-Butoxyphenyl)methanol, and the molecular formula is C11H16O2, Category: alcohols-buliding-blocks.

Referemce:
Alcohol – Wikipedia,
Alcohols – Chemistry LibreTexts