Tag: 200-300

Chang, Tsun-Mei; Billeck, Stephanie E. published an article in 2021. The article was titled 《Structure, Molecular Interactions, and Dynamics of Aqueous [BMIM][BF4] Mixtures: A Molecular Dynamics Study》, and you may find the article in Journal of Physical Chemistry B.Electric Literature of C8H15BF4N2 The information in the text is summarized as follows:

Mol. dynamics simulations with many-body polarizable force fields were carried out to investigate the thermodn., structural, and dynamic properties of aqueous solutions of 1-butyl-3-methylimidazolium tetrafluoroborate ([bmim][BF4]). The radial distribution functions exhibit well-defined features, revealing favored structural correlations between [bmim]+, [BF4]-, and H2O. The addition of water is shown to alter ionic liquid structural organizations by replacing counterions in the coordination shells and disrupt the cation-anion network. At low water concentration, the majority of water mols. are isolated from each other and have lower average dipole moment than that in pure water. With increasing hydration level, while [bmim][BF4] ionic network breaks up and becomes isolated ion pairs or free ions in the dilute limit, water begins to form clusters of increasing sizes and eventually forms a percolating network. As a result, the average water dipole moment increases and approaches its bulk value. Water is also observed to have a substantial influence on the dynamics of ionic liquids At low water content, the cation and anion have similar diffusion coefficients due to the correlated ionic motion of long-lived ion pairs. As the water concentration increases, both ions exhibit greater mobility and faster rotations from the breakup of ionic network. Consequently, the ionic conductivity of [bmim][BF4] aqueous solutions rises with increasing water composition In the experiment, the researchers used many compounds, for example, 3-Butyl-1-methyl-1H-imidazol-3-ium tetrafluoroborate(cas: 174501-65-6Electric Literature of C8H15BF4N2)

3-Butyl-1-methyl-1H-imidazol-3-ium tetrafluoroborate(cas: 174501-65-6) is a member of lonic liquids. Actually, lonic liquids as innovative fluids have received wide attention only during the past two decades. The number of SCI papers published on lonic liquids has exponentially increased from a few in 1996 to >5000 in 2016, exceeding the annual growth rates of other popular scientific areas. Electric Literature of C8H15BF4N2

Referemce:
Imidazole – Wikipedia,
Imidazole | C3H4N2 – PubChem

The author of 《Effects of water on ionic liquid electrochemical microsensor for oxygen sensing》 were Liu, Xiaojun; Chen, Xiaoyu; Xu, Yong; Chen, Tongtong; Zeng, Xiangqun. And the article was published in Sensors and Actuators, B: Chemical in 2019. COA of Formula: C8H15BF4N2 The author mentioned the following in the article:

The effect of water on ionic liquid (IL) planar electrochem. microsensor was studied in the case of sensing oxygen. This study compared the key anal. performances of the IL based electrochem. microsensor devices using an IL BmimBF4 direct from the vendor and ‘wet’ BmimBF4 containing different amount of water as electrolytes. The electrochem. properties in [Bmim][BF4] with or without oxygen using a planar microsensor device were characterized by cyclic voltammetry (CV) and electrochem. impedance spectroscopy (EIS). With the increasing of water concentrations in the IL, a pos. shift of redox potential of O2 and a higher reduction current of oxygen in CV measurement were observed The constant potential chronoamperometry measurements were conducted to assess the sensitivity, reproducibility and stability of microsensor at varying O2 concentration using these wet ILs as electrolytes. The short term and long-term stability evaluation of these IL microsensor for sensing oxygen was performed. Our results show that the electrochem. planar microsensor device demonstrates a good sensitivity, reproducibility and stability for sensing oxygen even though the ‘wet’ ILs were used as electrolytes. A remarkable stability of sensor was observed in stability test using as an electrolyte. In the experiment, the researchers used many compounds, for example, 3-Butyl-1-methyl-1H-imidazol-3-ium tetrafluoroborate(cas: 174501-65-6COA of Formula: C8H15BF4N2)

3-Butyl-1-methyl-1H-imidazol-3-ium tetrafluoroborate(cas: 174501-65-6) is a member of lonic liquids. Actually, lonic liquids as innovative fluids have received wide attention only during the past two decades. The number of SCI papers published on lonic liquids has exponentially increased from a few in 1996 to >5000 in 2016, exceeding the annual growth rates of other popular scientific areas. COA of Formula: C8H15BF4N2

Referemce:
Imidazole – Wikipedia,
Imidazole | C3H4N2 – PubChem

The author of 《The effect of nanoconfinement on the glass transition temperature of ionic liquids》 were Zuo, Yuchen; Zhang, Yuanzhong; Huang, Rundong; Min, Younjin. And the article was published in Physical Chemistry Chemical Physics in 2019. Safety of 3-Butyl-1-methyl-1H-imidazol-3-ium tetrafluoroborate The author mentioned the following in the article:

This work is concerned with investigating the glass transition behavior of ionic liquids as a function of nanoconfinement. The glass transition temperature was found to increase with a decrease in confinement length, below a critical confinement of 40-50 nm and 80-90 nm for 1-butyl-3-methylimidazolium tetrafluoro-borate and 1-methyl-3-octylimidazolium tetrafluoro-borate between alumina surfaces, resp. In the experimental materials used by the author, we found 3-Butyl-1-methyl-1H-imidazol-3-ium tetrafluoroborate(cas: 174501-65-6Safety of 3-Butyl-1-methyl-1H-imidazol-3-ium tetrafluoroborate)

3-Butyl-1-methyl-1H-imidazol-3-ium tetrafluoroborate(cas: 174501-65-6) is a member of lonic liquids. Actually, lonic liquids as innovative fluids have received wide attention only during the past two decades. The number of SCI papers published on lonic liquids has exponentially increased from a few in 1996 to >5000 in 2016, exceeding the annual growth rates of other popular scientific areas. Safety of 3-Butyl-1-methyl-1H-imidazol-3-ium tetrafluoroborate

Referemce:
Imidazole – Wikipedia,
Imidazole | C3H4N2 – PubChem

In 2022,Bottari, Cettina; Almasy, Laszlo; Rossi, Barbara; Bracco, Brenda; Paolantoni, Marco; Mele, Andrea published an article in Journal of Physical Chemistry B. The title of the article was 《Interfacial Water and Microheterogeneity in Aqueous Solutions of Ionic Liquids》.SDS of cas: 174501-65-6 The author mentioned the following in the article:

In this work, aqueous solutions of two prototypical ionic liquids (ILs), [BMIM][BF4] and [BMIM][TfO], were investigated by UV Raman spectroscopy and small-angle neutron scattering (SANS) in the water-rich domain, where strong heterogeneities at mesoscopic length scales (microheterogeneity) were expected. Analyzing Raman data by a differential method, the solute-correlated (SC) spectrum was extracted from the OH stretching profiles, emphasizing specific hydration features of the anions. SC-UV Raman spectra pointed out the mol. structuring of the interfacial water in these microheterogeneous IL/water mixtures, in which IL aggregates coexist with bulk water domains. The organization of the interfacial water differs for the [BMIM][BF4] and [BMIM][TfO] solutions, being affected by specific anion-water interactions. In particular, in the case of [BMIM][BF4], which forms weaker H-bonds with water, the aggregation properties clearly depend on concentration, as reflected by local changes in the interfacial water. On the other hand, stronger water-anion hydrogen bonds and more persistent hydration layers were observed for [BMIM][TfO], which likely prevent changes in IL aggregates. The modeling of SANS profiles, extended to [BPy][BF4] and [BPy][TfO], evidences the occurrence of significant concentration fluctuations for all of the systems: this appears as a rather general phenomenon that can be ascribed to the presence of IL aggregation, mainly induced by (cation-driven) hydrophobic interactions. Nevertheless, larger concentration fluctuations were observed for [BMIM][BF4], suggesting that anion-water interactions are relevant in modulating the microheterogeneity of the mixture In the experiment, the researchers used 3-Butyl-1-methyl-1H-imidazol-3-ium tetrafluoroborate(cas: 174501-65-6SDS of cas: 174501-65-6)

3-Butyl-1-methyl-1H-imidazol-3-ium tetrafluoroborate(cas: 174501-65-6) is a member of lonic liquids. Actually, lonic liquids as innovative fluids have received wide attention only during the past two decades. The number of SCI papers published on lonic liquids has exponentially increased from a few in 1996 to >5000 in 2016, exceeding the annual growth rates of other popular scientific areas. SDS of cas: 174501-65-6

Referemce:
Imidazole – Wikipedia,
Imidazole | C3H4N2 – PubChem

《Role of image charges in ionic liquid confined between metallic interfaces》 was published in Physical Chemistry Chemical Physics in 2020. These research results belong to Ntim, Samuel; Sulpizi, Marialore. Category: imidazoles-derivatives The article mentions the following:

The peculiar properties of ionic liquids in confinement have not only become essential for energy storage, catalysis and tribol., but still pose fundamental questions. Recently, an anomalous liquid-solid phase transition has been observed in at. force microscopy experiments for 1-butyl-3-methylimidazolium tetrafluoroborate ([BMIM][BF4]), the transition being more pronounced for metallic surfaces. Image charges have been suggested as the key element driving the anomalous freezing. Using atomistic mol. dynamics simulations, we investigate the impact of image charges on structure, dynamics and thermodn. of [BMIM][BF4] confined between gold electrodes. Our results not only unveil a minor role played by the metal polarisation, but also provide a novel description of the interfacial layer. Although no diffuse layer can be defined in terms of the electrostatic potential, long range effects are clearly visible in the dynamical properties up to 10 nm away from the surface, and are expected to influence viscous forces in the experiments In the experiment, the researchers used many compounds, for example, 3-Butyl-1-methyl-1H-imidazol-3-ium tetrafluoroborate(cas: 174501-65-6Category: imidazoles-derivatives)

3-Butyl-1-methyl-1H-imidazol-3-ium tetrafluoroborate(cas: 174501-65-6) is a member of lonic liquids. A multidisciplinary study on lonic liquids is emerging, including chemistry, materials science, chemical engineering, and environmental science. More specifically, some important fundamental viewpoints are now different from the original concepts, as insights into the nature of lonic liquids become deeper. For example, the physicochemical properties of lonic liquids are now recognized as ranging broadly from the oft quoted “nonvolatile, non-flammable, and air and water stable” to those that are distinctly volatile, flammable, and unstable. Category: imidazoles-derivatives

Referemce:
Imidazole – Wikipedia,
Imidazole | C3H4N2 – PubChem

《AACC Guidance Document on Biotin Interference in Laboratory Tests.》 was published in The journal of applied laboratory medicine in 2020. These research results belong to Li, Danni; Ferguson, Angela; Cervinski, Mark A; Lynch, Kara L; Kyle, Patrick B. Application In Synthesis of 5-((3aS,4S,6aR)-2-Oxohexahydro-1H-thieno[3,4-d]imidazol-4-yl)pentanoic acid The article mentions the following:

BACKGROUND: Laboratory tests that use streptavidin-biotin binding mechanisms have the potential to be affected by high circulating biotin concentrations, which would produce positive and negative interference in biotinylated competitive and noncompetitive (sandwich) immunoassays, respectively. Consumption of high-dose biotin supplements for cosmetic or health-related reasons has drawn attention to biotin interference in clinical laboratory tests. Case reports and in vivo studies show that ingestion of supplemental biotin can cause clinically significant errors in select biotinylated immunoassays. CONTENT: This AACC Academy document is intended to provide guidance to laboratorians and clinicians for preventing, identifying, and dealing with biotin interference. In vivo and in vitro spiking studies have demonstrated that biotin concentrations required to cause interference vary by test and by manufacturer. This document includes discussion of biotin’s mechanisms for interference in immunoassays, pharmacokinetics, and results of in vitro and in vivo studies and cites examples of assays known to be affected by high biotin concentrations. This document also provides guidance recommendations intended to assist laboratories and clinicians in identifying and addressing biotin interference in laboratory testing. SUMMARY: The recent increase in the use of high-dose biotin supplements requires laboratorians and clinicians to be mindful of the potential for biotin interference in biotinylated immunoassay-based laboratory tests. Laboratories, clinicians, regulators, and patients should work together to ensure accurate laboratory results. Laboratories have several options for identifying suspected biotin interference in specimens. Alternatively, the relatively fast elimination of biotin allows the potential for rapid follow-up specimen analysis if necessary. In the experiment, the researchers used many compounds, for example, 5-((3aS,4S,6aR)-2-Oxohexahydro-1H-thieno[3,4-d]imidazol-4-yl)pentanoic acid(cas: 58-85-5Application In Synthesis of 5-((3aS,4S,6aR)-2-Oxohexahydro-1H-thieno[3,4-d]imidazol-4-yl)pentanoic acid)

5-((3aS,4S,6aR)-2-Oxohexahydro-1H-thieno[3,4-d]imidazol-4-yl)pentanoic acid(cas: 58-85-5) may be used to elute proteins from avidin/streptavidin resins. It has been used for culturing of oligodendrocytes.Application In Synthesis of 5-((3aS,4S,6aR)-2-Oxohexahydro-1H-thieno[3,4-d]imidazol-4-yl)pentanoic acid And it has been used for blocking endogenous biotin during immunohistology procedures.

Referemce:
Imidazole – Wikipedia,
Imidazole | C3H4N2 – PubChem

The author of 《Neonatal form of biotin-thiamine-responsive basal ganglia disease. Clues to diagnosis.》 were Değerliyurt, Aydan; Gündüz, Mehmet; Ceylaner, Serdar; Ünal, Özlem; Ünal, Sevim. And the article was published in The Turkish journal of pediatrics in 2019. Computed Properties of C10H16N2O3S The author mentioned the following in the article:

Değerliyurt A, Gündüz M, Ceylaner S, Ünal Ö, Ünal S. Neonatal form of biotin-thiamine-responsive basal ganglia disease. Clues to diagnosis. Turk J Pediatr 2019; 61: 261-266. Biotin-thiamine-responsive basal ganglia disease is characterized by seizures, dystonia and encephalopathy attacks, with an acute-subacute onset in childhood. It causes cerebral damage especially with caudate head and putamen involvement and may lead to severe sequelae and even death if left untreated. We report a patient with the neonatal form of biotin-thiamine-responsive basal ganglia disease who presented with encephalopathy and lactic acidosis in the neonatal period together with the diagnostic magnetic resonance imaging (MRI) clues. MRI in the neonatal period revealed bilateral involvement of the putamen, thalamus, and perirolandic cortical regions. However, MRI obtained at 32 months revealed involvement of the caudate nuclei in addition to the putamen and thalami. The neuroimaging findings of our patient and relevant literature indicate that patients with biotin-thiamine-responsive basal ganglia disease who are symptomatic in the neonatal period have putamen, thalami, and perirolandic cortical involvement. However, these patients do not have caudate involvement, unlike the patients who present in childhood. In the experiment, the researchers used 5-((3aS,4S,6aR)-2-Oxohexahydro-1H-thieno[3,4-d]imidazol-4-yl)pentanoic acid(cas: 58-85-5Computed Properties of C10H16N2O3S)

5-((3aS,4S,6aR)-2-Oxohexahydro-1H-thieno[3,4-d]imidazol-4-yl)pentanoic acid(cas: 58-85-5) may be used to elute proteins from avidin/streptavidin resins. It has been used for culturing of oligodendrocytes.Computed Properties of C10H16N2O3S And it has been used for blocking endogenous biotin during immunohistology procedures.

Referemce:
Imidazole – Wikipedia,
Imidazole | C3H4N2 – PubChem

The author of 《Strategies to investigate biotin interference in light of the FDA safety communication》 were Johnson, Lisa; Li, Danni. And the article was published in Journal of Applied Laboratory Medicine in 2019. Quality Control of 5-((3aS,4S,6aR)-2-Oxohexahydro-1H-thieno[3,4-d]imidazol-4-yl)pentanoic acid The author mentioned the following in the article:

This article outlined strategies to investigate biotin interference in light of FDA safety communication.5-((3aS,4S,6aR)-2-Oxohexahydro-1H-thieno[3,4-d]imidazol-4-yl)pentanoic acid(cas: 58-85-5Quality Control of 5-((3aS,4S,6aR)-2-Oxohexahydro-1H-thieno[3,4-d]imidazol-4-yl)pentanoic acid) was used in this study.

5-((3aS,4S,6aR)-2-Oxohexahydro-1H-thieno[3,4-d]imidazol-4-yl)pentanoic acid(cas: 58-85-5) may be used to elute proteins from avidin/streptavidin resins. It has been used for culturing of oligodendrocytes.Quality Control of 5-((3aS,4S,6aR)-2-Oxohexahydro-1H-thieno[3,4-d]imidazol-4-yl)pentanoic acid And it has been used for blocking endogenous biotin during immunohistology procedures.

Referemce:
Imidazole – Wikipedia,
Imidazole | C3H4N2 – PubChem

In 2019,Journal of Molecular Liquids included an article by Yoshimura, Yukihiro; Mori, Takahiro; Kaneko, Kazuyoshi; Nogami, Koji; Takekiyo, Takahiro; Masuda, Yuichi; Shimizu, Akio. Recommanded Product: 174501-65-6. The article was titled 《Confirmation of local water structure confined in ionic liquids using H/D exchange》. The information in the text is summarized as follows:

We investigated the local structure of water mols. confined inside ionic liquid (IL) nanodomain structures of 1-butyl-3-methylimidazolium tetrafluoroborate, (abbreviated as [bmim][BF4]) using NMR and Raman spectroscopy to monitor H/D exchange reaction between H2O and D2O water mols. The results showed that fewer than 5 water mols. were probably present in the water domain of the IL nanospace at less than ∼60 water mol%, where the translational motion of water mols. was inhibited and proton exchange rate was highly restricted. These phenomena were attributed to the absence of bulk hydrogen-bonded network structures in the water domain. The H atoms of the HDO mol. tended to interact with BF-4 anions, whereas the D atoms of HDO interacted with the C2 atoms of the bmim+ cation. As a result, water mols. became trapped inside the IL framework, which is likely to be the main cause of the reduction in H/D exchange rate among water mols. in the mixture3-Butyl-1-methyl-1H-imidazol-3-ium tetrafluoroborate(cas: 174501-65-6Recommanded Product: 174501-65-6) was used in this study.

3-Butyl-1-methyl-1H-imidazol-3-ium tetrafluoroborate(cas: 174501-65-6) is a member of lonic liquids. A multidisciplinary study on lonic liquids is emerging, including chemistry, materials science, chemical engineering, and environmental science. More specifically, some important fundamental viewpoints are now different from the original concepts, as insights into the nature of lonic liquids become deeper. For example, the physicochemical properties of lonic liquids are now recognized as ranging broadly from the oft quoted “nonvolatile, non-flammable, and air and water stable” to those that are distinctly volatile, flammable, and unstable. Recommanded Product: 174501-65-6

Referemce:
Imidazole – Wikipedia,
Imidazole | C3H4N2 – PubChem

The author of 《Fluorescent probe dependence of the solvation dynamics in ionic liquid BmimBF4 and propylene carbonate mixtures: a time-resolved fluorescence and quantum chemistry study》 were Smortsova, Yevheniia; Miannay, Francois-Alexandre; Koverga, Volodymyr; Dubois, Julien; Kalugin, Oleg; Idrissi, Abdenacer. And the article was published in Journal of Molecular Liquids in 2019. Recommanded Product: 3-Butyl-1-methyl-1H-imidazol-3-ium tetrafluoroborate The author mentioned the following in the article:

In this work, steady-state and time-resolved fluorescence experiments on solvation of C153, C102, 4-ANMP and PRODAN fluorescent probes in BmimBF4 and BmimBF4/PC mixtures with a molar fraction of ionic liquid equal to 0.65 and 0.85 are reported. Quantum Chem. calculations were performed to complete the exptl. data interpretation. All the four studied probes exhibit similar solvation dynamics, with their average solvation times following the trend 4-ANMP < C153 ≡ C102 < PRODAN. A specific interactions hypothesis was put forward to explain the slight divergence of 4-ANMP and PRODAN spectra shift. The C153 mol., showing a big change in dipole moment (8.7 D) upon the photoexcitation, little geometry relaxation upon the excitation due to its rigid structure, small change in dipole moment orientation and relatively small hydrogen bonding ability is thus proved to be the most adequate for use in the study of the solvation dynamics in various environments, including ionic liquids and ionic liquid/mol. solvent mixtures The results came from multiple reactions, including the reaction of 3-Butyl-1-methyl-1H-imidazol-3-ium tetrafluoroborate(cas: 174501-65-6Recommanded Product: 3-Butyl-1-methyl-1H-imidazol-3-ium tetrafluoroborate)

3-Butyl-1-methyl-1H-imidazol-3-ium tetrafluoroborate(cas: 174501-65-6) is a member of lonic liquids. A multidisciplinary study on lonic liquids is emerging, including chemistry, materials science, chemical engineering, and environmental science. More specifically, some important fundamental viewpoints are now different from the original concepts, as insights into the nature of lonic liquids become deeper. For example, the physicochemical properties of lonic liquids are now recognized as ranging broadly from the oft quoted “nonvolatile, non-flammable, and air and water stable” to those that are distinctly volatile, flammable, and unstable. Recommanded Product: 3-Butyl-1-methyl-1H-imidazol-3-ium tetrafluoroborate

Referemce:
Imidazole – Wikipedia,
Imidazole | C3H4N2 – PubChem