Month: April 2021

Electric Literature of 130198-05-9, The transformation of simple hydrocarbons into more complex and valuable products via catalytic C¨CH bond functionalisation has revolutionised modern synthetic chemistry. 130198-05-9, Name is 1-[2-Amino-1-(4-methoxyphenyl)ethyl]cyclohexanol Hydrochloride, SMILES is Cl[H].COC1=CC=C(C=C1)C(CN)C1(O)CCCCC1, belongs to alcohols-buliding-blocks compound. In a article, author is Huang, Lei, introduce new discover of the category.

Synthesis and Application of Platinum-Based Hollow Nanoframes for Direct Alcohol Fuel Cells

Although platinum (Pt)-based catalysts are suffering from high costs and limited reserves, they are still irreplaceable in a short period of time in terms of catalytic performance. Structural optimization, composition regulation and carrier modification are the common strategies to improve the activity and stability of Pt-based catalyst. Strikingly, the morphological evolution of Pt-based electrocatalyst into nanoframes (NFs) have attracted wide attention to reduce the Pt consumption and improve the electrocatalytic activity simultaneously. Contrary to Pt-based solid nanocrystalline materials, Pt-based NFs have many advantages in higher atomic utilization, open space structure and larger specific surface area, which facilitate electron transfer, mass transport and weaken surface adsorption by more unsaturated coordination sites. Here we introduce the detailed preparation strategies of Pt-based NFs with different etching methods (oxidative etching, chemical etching, galvanic replacement and carbon monoxide etching), crystal structure evolution and formation mechanism, efficient applications for oxygen reduction reaction (ORR), methanol oxidation reaction (MOR) and ethanol oxidation reaction (EOR) in direct alcohol fuel cells (DAFCs). Based on the high-efficiency atom utilization, open space structure and diverse alloy composition, Pt-based NFs exhibit superior activity, stability and anti-poisoning than commercial counterparts in the application of DAFCs. The current challenges and future development of Pt-based NFs are prospected on the type of NFs materials, synthesis and etching methods, crystal control and catalytic performance. We propose a series of improvement mechanisms of Pt-based NFs, such as small size effect, high-energy facets, Pt-skin construction and Pt-C integration, thereby weakening the molecule absorption, increasing the Pt utilization, strengthening the intrinsic stability, and alleviating the metal dissolution and support corrosion. Additionally, the scale-up synthesis of catalytic materials, membrane electrodes assembly, and development of the start-stop system and the circulation system design are essential for the commercial application of Pt-based NFs and industrial manufacturing of DAFCs. More importantly, the reaction mechanism, active site distribution and dynamic changes in the catalytic material during the catalytic reaction are crucial to further explain the maintenance and evolution of catalytic performance, which will open a window to elucidate the improvement mechanism of the catalyst in the fuel cell reactions. This review work would promote continuous upgradations and understandings on Pt-based NFs in the future development of DAFCs.

Electric Literature of 130198-05-9, Each elementary reaction can be described in terms of its molecularity, the number of molecules that collide in that step. The slowest step in a reaction mechanism is the rate-determining step.you can also check out more blogs about 130198-05-9.

Reference:
Alcohol – Wikipedia,
,Alcohols – Chemistry LibreTexts

Reference of 1606-85-5, Redox catalysis has been broadly utilized in electrochemical synthesis due to its kinetic advantages over direct electrolysis. The appropriate choice of redox mediator can avoid electrode passivation and overpotential. 1606-85-5, Name is 2,2-(But-2-yne-1,4-diylbis(oxy))diethanol, SMILES is OCCOCC#CCOCCO, belongs to alcohols-buliding-blocks compound. In a article, author is Hao, Fang, introduce new discover of the category.

One-step complexed preparation of nitrogen and Cu co-doped oxidative active carbon catalysts Cu-N/OAC for furfural selective hydrogenation with high yield

A facile procedure for preparing copper and nitrogen co-doped active carbon (Cu-N/OAC) by one-step complexed was reported and applied in liquid-phase hydrogenation of furfural (FAL). The facile procedure resulted in high Cu nanoparticles dispersion on OAC with Cu-0 and Cu+ sites and apparently promoted the catalytic activities during furfural hydrogenation reaction. The obtained Cu-N/OAC-800 shows 99.5% FAL conversion with 98.4% selectivity to furfuryl alcohols (FOL) under reaction condition of 150 degrees C, 2 MPa and 6 h. These results indicated that the excellent catalytic performance of the catalyst was due to the synergic effects of nitrogen doping and Cu metal active sites.

Reference of 1606-85-5, Because enzymes can increase reaction rates by enormous factors and tend to be very specific, typically producing only a single product in quantitative yield, they are the focus of active research.you can also check out more blogs about 1606-85-5.

Reference:
Alcohol – Wikipedia,
,Alcohols – Chemistry LibreTexts

Enzymes are biological catalysts that produce large increases in reaction rates and tend to be specific for certain reactants and products. 4461-39-6, Name is N-(2-Hydroxyethyl)-1,3-propanediamine, molecular formula is C5H14N2O, belongs to alcohols-buliding-blocks compound. In a document, author is Liao, Kui, introduce the new discover, Computed Properties of C5H14N2O.

Highly Enantioselective CuAAC of Functional Tertiary Alcohols Featuring an Ethynyl Group and Their Kinetic Resolution

The first highly enantioselective Cu-I-catalyzed azide-alkyne cycloaddition (CuAAC) of tertiary alcohols and their kinetic resolution is reported. This approach allows facile access to multifunctional tertiary alcohols featuring an alpha-ethynyl or alpha-triazole moiety, and represents the first successful kinetic resolution of racemates with a tetrasubstituted carbon stereocenter via CuAAC. Newly developed pyridinebisoxazoline (PYBOX) ligands with a C4 phosphonate group play a key role.

Balanced chemical reaction does not necessarily reveal either the individual elementary reactions by which a reaction occurs or its rate law. In my other articles, you can also check out more blogs about 4461-39-6. Computed Properties of C5H14N2O.

Reference:
Alcohol – Wikipedia,
,Alcohols – Chemistry LibreTexts

Chemistry can be defined as the study of matter and the changes it undergoes. You¡¯ll sometimes hear it called the central science because it is the connection between physics and all the other sciences, starting with biology. 5187-23-5, Name is (5-Ethyl-1,3-dioxan-5-yl)methanol, molecular formula is , belongs to alcohols-buliding-blocks compound. In a document, author is Smith, Justin, Recommanded Product: 5187-23-5.

Smoking cessation in head and neck cancer patients: Factors influencing successes and failures

Introduction This study investigated the smoking behaviours and cessation rates of head and neck cancer (HNC) patients, and their barriers and facilitators to cessation. Method The study used a mixed methods, sequential explanatory design. The quantitative data were collected at baseline (around time of cancer diagnosis) via a survey prior to commencement of treatment. Participants identified as current smokers at baseline were then followed up to determine their smoking status after treatment and asked to participate in one-on-one, semi-structured interviews. Results Sixty-four participants with HNC were recruited, with 29 classified as current smokers. The 7-day point prevalence cessation rate for current smokers was 72% at 1-month follow-up, and 67% at 3 months, while continuous smoking cessation was 54% at 1 month, and 42% at 3 months. Participants who continued smoking were found to consume more alcohol (P = 0.032), be in a lower stage of change (pre-contemplation or contemplation stages of the transtheoretical model) at baseline (P = 0.012) and be less confident in being able to cease smoking (P = 0.004). Qualitative analysis revealed 5 key themes associated with smoking cessation: the teachable moment of a cancer diagnosis and treatment, willpower and cessation aids, psychosocial environment, relationship with alcohol and marijuana, and health knowledge and beliefs surrounding smoking and cancer. Conclusions This study demonstrates that the majority of HNC patients achieve smoking cessation, but relapses are common. Cessation programmes should be developed that are comprehensive, sustained and address factors such as alcohol, marijuana and depression.

Sometimes chemists are able to propose two or more mechanisms that are consistent with the available data. If a proposed mechanism predicts the wrong experimental rate law, however, the mechanism must be incorrect.Welcome to check out more blogs about 5187-23-5, in my other articles. Recommanded Product: 5187-23-5.

Reference:
Alcohol – Wikipedia,
,Alcohols – Chemistry LibreTexts

The reaction rate of a catalyzed reaction is faster than the reaction rate of the uncatalyzed reaction at the same temperature. 821-41-0, Name is 5-Hexen-1-ol, SMILES is C=CCCCCO, in an article , author is Xu, Le, once mentioned of 821-41-0, Recommanded Product: 5-Hexen-1-ol.

Ultrasonic effects on the headspace volatilome and protein isolate microstructure of duck liver, as well as their potential correlation mechanism

In spite of the high added value and tremendous output from duck processing industries, duck liver (DLv) is underutilized and a major factor is related to its prominent off-flavor perception which hampers the consumption and processing attributes. This work was designed to investigate the impact of low-frequency ultrasound (US) pretreatments on the headspace volatilome evolution of DLv and its isolated protein (DLvP) microstructure, aiming at exploring the potential of US technology to inhibit off-flavor perception and possible mechanisms behind. Results suggested that US pretreatment resulted in decreased lipid oxidation and off-flavor perception, simultaneously without significantly causing physicochemical influence including texture, pH and color. US induced obvious tertiary structural changes of DLvP, as revealed by the intrinsic fluorescence and surface hydrophobicity (H0), whereas the SH, S-S, secondary structure and molecular weight of DLvP remained unaffected, suggesting the presence of molten globule state (MG-state) under ultrasonic conditions. Besides, the headspace contents of flavor compounds, mainly aldehydes and alcohols, were significantly decreased whereas acids were increased. Multivariate analysis suggested an obvious US-induced effect on the volatilome evolution of DLv samples. Discriminant analysis recognized the aroma compounds including aldehydes and alkenals as the major contributors leading to the change of olfactory characteristics of DLv after ultrasonic treatment. Correlation analysis demonstrated the positive relationship between the volatile markers variation and the increased H0 values, a characteristic attribute of MG-state protein. The results obtained in this work suggested that US technology matched with suitable parameters could be a very promising approach to modulate the off-flavor perception of liver products by altering DLvP conformation.

Interested yet? Read on for other articles about 821-41-0, you can contact me at any time and look forward to more communication. Recommanded Product: 5-Hexen-1-ol.

Reference:
Alcohol – Wikipedia,
,Alcohols – Chemistry LibreTexts

In an article, author is Kim, Minjoo, once mentioned the application of 2854-16-2, Formula: C4H11NO, Name is 1-Amino-2-methylpropan-2-ol, molecular formula is C4H11NO, molecular weight is 89.14, MDL number is MFCD01697283, category is alcohols-buliding-blocks. Now introduce a scientific discovery about this category.

Fermentation profiling of rice wine produced by Aspergillus oryzae KSS2 and Rhizopus oryzae KJJ39 newly isolated from Korean fermentation starter

The objective of this study was to determine the fermentation characteristics of rice wine produced by koji inoculated with Aspergillus oryzae KSS2 and Rhizopus oryzae KJJ39 on moisturized wheat-bran and rice grain. We also compared rice wine samples produced in this study and three commercial Makgeolli. The alcohol content was about 12% higher in the rice wine samples fermented by wheat-bran koji than in the other samples. In all of the samples, the range of pH value was 3.8-4.6 and the total acid was below 0.5. The soluble solid content was highest in the rice wine sample prepared by the wheat-bran R. oryzae KJJ39 koji (15.5 degrees Brix) and overall relatively higher in the samples with wheat-bran koji than rice koji. The content of reducing sugar was twofold higher in rice wine prepared by koji inoculated with R. oryzae KJJ39 than A. oryzae KSS2. The volatile acid content was higher in rice wine produced by the wheat-bran A. oryzae KSS2 koji than the others. In the analyses of five organic acids, A. oryzae KSS2 was found to produce more malic acid and fumaric acid while R. oryzae KJJ39 to do more citric acid, lactic acid and acetic acid. The rice wine sample prepared with the wheat-bran A. oryzae KSS2 koji contained much higher concentration of sucrose, maltose and amino acids. Comprehensively, the results of fermentation profiling suggest that both A. oryzae KSS2 and R. oryzae KJJ39 can be applied to the production of rice wine as a valuable fungal isolate for fermentation start.

If you are interested in 2854-16-2, you can contact me at any time and look forward to more communication. Formula: C4H11NO.

Reference:
Alcohol – Wikipedia,
,Alcohols – Chemistry LibreTexts

Application of 100442-33-9, The transformation of simple hydrocarbons into more complex and valuable products via catalytic C¨CH bond functionalisation has revolutionised modern synthetic chemistry. 100442-33-9, Name is 1-(3,3-Diphenyl-N-methylpropylamino)-2-methyl-2-propanol, SMILES is C1(=CC=CC=C1)C(CCN(C)CC(C)(O)C)C2=CC=CC=C2, belongs to alcohols-buliding-blocks compound. In a article, author is Meacham, Meredith C., introduce new discover of the category.

A Facebook intervention to address cigarette smoking and heavy episodic drinking: A pilot randomized controlled trial

Background: Co-occurrence of tobacco use and heavy episodic drinking (HED; 5+ drinks for men and 4+ drinks for women per occasion) is common among young adults; both warrant attention and intervention. In a two-group randomized pilot trial, we investigated whether a Facebook-based smoking cessation intervention addressing both alcohol and tobacco use would increase smoking abstinence and reduce HED compared to a similar intervention addressing only tobacco. Methods: Participants were 179 young adults (age 18-25; 49.7% male; 80.4% non-Hispanic white) recruited from Facebook and Instagram who reported smoking 4+ days/week and past-month HED. The Smoking Tobacco and Drinking (STAND) intervention (N = 84) and the Tobacco Status Project (TSP), a tobacco-only intervention (N = 95), both included daily Facebook posts for 90 days and weekly live counseling sessions in private secret groups. We verified self-reported 7-day smoking abstinence via remote salivary cotinine tests at 3, 6, and 12 months (with retention at 83%, 66%, and 84%, respectively). Participants self-reported alcohol use. Results: At baseline, the participants averaged 10.4 cigarettes per day (SD = 6.9) and 8.9 HED occasions in the past month (SD = 8.1), with 27.4% in a preparation stage of change for quitting smoking cigarettes. Participants reported significant improvements in cigarette smoking and alcohol use outcomes over time, with no significant differences by condition. At 12 months, intent-to-treat smoking abstinence rates were 3.5% in STAND vs. 0% in TSP (biochemically verified) and 29.4% in STAND vs. 25.5% in TSP (self-reported). Compared to TSP, participants rated the STAND intervention more favorably for supporting health and providing useful information. Conclusions: Adding an alcohol treatment component to a tobacco cessation social media intervention was acceptable and engaging but did not result in significant differences by treatment condition in smoking or alcohol use outcomes. Participants in both conditions reported smoking and drinking less over time, suggesting covariation in behavioral changes.

Application of 100442-33-9, Consequently, the presence of a catalyst will permit a system to reach equilibrium more quickly, but it has no effect on the position of the equilibrium as reflected in the value of its equilibrium constant.I hope my blog about 100442-33-9 is helpful to your research.

Reference:
Alcohol – Wikipedia,
,Alcohols – Chemistry LibreTexts

Chemistry is traditionally divided into organic and inorganic chemistry. The former is the study of compounds containing at least one carbon-hydrogen bonds. 13826-35-2, Name is (3-Phenoxyphenyl)methanol, molecular formula is C13H12O2, belongs to alcohols-buliding-blocks compound, is a common compound. In a patnet, author is Khmelinskii, Igor, once mentioned the new application about 13826-35-2, Application In Synthesis of (3-Phenoxyphenyl)methanol.

Energy transfer along Muller cell intermediate filaments isolated from porcine retina: I. Excitons produced by ADH1A dimers upon simultaneous hydrolysis of two ATP molecules

IR exciton propagation was explored in Muller cell (MC) intermediate filaments (IFs) filling a capillary matrix. These IFs have been isolated from porcine retina using different methods, while their properties were almost identical. Therefore, IFs isolated from the whole retinas were used presently. IR excitons were generated by IR radiation at 2 lm wavelength, or by enzymatic ATP hydrolysis, with the energy transferred to IFs. Excitons produced by ATP hydrolysis required simultaneous energy contribution of two ATP molecules, indicating simultaneous hydrolysis of two ATP molecules in the naturally dimeric human alcohol dehydrogenase enzyme (ADH1A). ATP hydrolysis was thus catalyzed by ADH1A center dot center dot center dot NAD+ enzymatic complexes absorbed at the IF extremities protruding out of the capillary matrix. The IR emission spectra of excitons were dependent on the exciton generation method. We believe this resulted from the exciton energy distribution varying in function of the generation method used. The latter seems reasonable, given the very long excited-state lifetimes, implying low nonradiative relaxation rates. The energy liberated by ATP hydrolysis has been measured directly in these experiments, for the first time. The results demonstrate that contrary to the predictions of equilibrium thermodynamics, the liberated energy is independent on the ATP/ADP concentration ratio, indicating that non-equilibrium reactions take place. Time-resolved experiments with excitons produced by pulsed IR radiation evaluated characteristic exciton propagation and emission times. For the first time, biexcitonic processes were observed in biological objects, whereby simultaneous hydrolysis of two ATP molecules bound to the same dimeric ADH1A molecule generated excitons carrying twice the energy liberated by hydrolysis of a single ATP molecule. The results reported indicate that ATP-liberated energy may be transmitted along natural polypeptide nanofibers in vivo, within and between live cells. These ideas could promote new understanding of the biophysics of life. Published by Elsevier B.V.

We¡¯ll also look at important developments in the pharmaceutical industry because understanding organic chemistry is important in understanding health, medicine, 13826-35-2. The above is the message from the blog manager. Application In Synthesis of (3-Phenoxyphenyl)methanol.

Reference:
Alcohol – Wikipedia,
,Alcohols – Chemistry LibreTexts

Synthetic Route of 27646-80-6, Chemo-enzymatic cascade processes are invaluable due to their ability to rapidly construct high-value products from available feedstock chemicals in a one-pot relay manner. 27646-80-6, Name is 2-Methyl-2-(methylamino)propan-1-ol, SMILES is CC(NC)(C)CO, belongs to alcohols-buliding-blocks compound. In a article, author is Shi, Yan, introduce new discover of the category.

Tribological Rehydration and Its Role on Frictional Behavior of PVA/GO Hydrogels for Cartilage Replacement Under Migrating and Stationary Contact Conditions

Graphene oxide (GO) was incorporated into polyvinyl alcohol (PVA) hydrogel to improve its mechanical and tribological performances for potential articular cartilage replacement application. The compressive mechanical properties, creep resistance, and dynamic mechanical properties of PVA/GO hydrogels with varied GO content were studied. The frictional behavior of PVA/GO hydrogels under stationary and migrating contact configurations during reciprocal and unidirectional sliding movements were investigated. The effects of load, sliding speed, diameter of counterface, and counterface materials on the frictional coefficient of PVA/GO hydrogels were discussed. PVA/0.10wt%GO hydrogel show higher compressive modulus and creep resistance, but moderate friction coefficient. The friction coefficient of PVA/GO hydrogel under stationary and migratory contact configurations greatly depends on interstitial fluid pressurization and tribological rehydration. The friction behavior of PVA/GO hydrogels shows load, speed, and counterface diameter dependence similar to those observed in natural articular cartilage. A low friction coefficient (similar to 0.03) was obtained from PVA/0.10wt%GO hydrogel natural cartilage counter pair. [GRAPHICS] .

Synthetic Route of 27646-80-6, Each elementary reaction can be described in terms of its molecularity, the number of molecules that collide in that step. The slowest step in a reaction mechanism is the rate-determining step.you can also check out more blogs about 27646-80-6.

Reference:
Alcohol – Wikipedia,
,Alcohols – Chemistry LibreTexts

Chemistry can be defined as the study of matter and the changes it undergoes. You¡¯ll sometimes hear it called the central science because it is the connection between physics and all the other sciences, starting with biology. 821-41-0, Name is 5-Hexen-1-ol, molecular formula is , belongs to alcohols-buliding-blocks compound. In a document, author is Meng, Qian, Computed Properties of C6H12O.

Study on the treatment of sudden cadmium pollution in surface water by a polymer enhanced ultrafiltration process

The removal of cadmium(ii) pollution in surface water by a polymer enhanced ultrafiltration (PEUF) process was investigated. Three water soluble polymers, chitosan (CTS), polyvinyl alcohol (PVA) and polyacrylate sodium (PAAS), were selected for this study. Of the three polymers, PAAS had strong interactions with Cd2+, and the PEUF achieved a high removal of Cd2+; therefore, PAAS was used as a complexing agent for the simulated cadmium pollution experiment. Experiments were performed as a function of the aqueous pH, polymer/Cd2+ ratio (P/M), ionic strength and humic acid. Under optimum experimental conditions, the Cd2+ removal rate reached 100%. pH was the main factor affecting removal of Cd2+, which decreased to 60% at a pH of 4. The Cd2+ removal was found to decrease as NaCl and HA were added. The analysis showed that the mechanism of NaCl could be a compressed electric double layer, while the mechanism of HA and H+ was competitive complexation. Finally, UF membrane fouling, the dissociation of PAAS-Cd and the regeneration of PAAS were investigated. The results showed that the higher P/M was, the lower the pH, the higher the HA concentration, and the more serious the UF membrane fouling were. The dissociation rate of PAAS-Cd reached 99.8% at a pH of 2.5. When the P/M was 5, the removal rate of Cd reached 99.6% with the addition of 20% new PAAS in the regenerate. This result showed that the PEUF process could be a promising method for removing Cd pollution in surface water.

Sometimes chemists are able to propose two or more mechanisms that are consistent with the available data. If a proposed mechanism predicts the wrong experimental rate law, however, the mechanism must be incorrect.Welcome to check out more blogs about 821-41-0, in my other articles. Computed Properties of C6H12O.

Reference:
Alcohol – Wikipedia,
,Alcohols – Chemistry LibreTexts