water in dmso nmr

A Lovis 2000 M Anton Parr Viscometer was used with a 1.59-mm (400 µL) glass capillary tube and stainless steel ball. Role of Water in Gelation of Curdlan/DMSO/Water Ternary System. The van der Waals equation is as follows (Eq. Songyan Jia, Kairui Liu, Zhanwei Xu, Peifang Yan, Wenjuan Xu, Xiumei Liu, Z. Conrad Zhang. This article is cited by Solvent effect on protonation constants of salicylic acid in mixed aqueous organic solutions of DMSO.

2 is roughly exponential, with a decay length λ = L/π. At separations D < 1.3 nm, the sum of Eqs. Thermodynamics of Mixing Water with Dimethyl Sulfoxide, as Seen from Computer Simulations. Thermosolvatochromism of Merocyanine Polarity Indicators in Pure and Aqueous Solvents:  Relevance of Solvent Lipophilicity. Gamov, M.N.

Based on this knowledge, the presented SFA and NMR measurements show a gradual decrease in the solvated size of the PC head group that occurs in this regime of DMSO concentration.

The difference in equilibrium separations, Do, between force curves in 0 mol% and 7.5 mol% DMSO solutions is 0.5 nm, which is indicated in Fig.

An SFA measurement between DPPC bilayers was made in a glycerol–water mixture of 5 mol% glycerol (results shown in Fig. The hydrocarbon/head group interface labeled “hc interface” is drawn at the height of the carbonyl groups. Physicochemical and Biological Properties of Oxovanadium(IV), Cobalt(II) and Nickel(II) Complexes with Oxydiacetate Anions. Surov, A.N. The complementary measurements indicate that, at concentrations below 10 mol%, the primary effect of DMSO is to decrease the solvated volume of the PC head group and that, from 10 mol% to 20 mol%, DMSO acts to gradually collapse head groups down onto the surface and suppress their thermal motion. Novel Synthesis Pathway of ZnO Nanoparticles from the Spontaneous Hydrolysis of Zinc Carboxylate Salts. With an increase in temperature, Claesson et al. Prevention of freezing damage to living cells by dimethyl sulphoxide, Temperature-dependent perturbation of phospholipid bilayers by dimethylsulfoxide, Membrane action of DMSO and other chemical inducers of Friend leukaemic cell differentiation, Dimethylsulfoxide enhances CNS neuronal plasma membrane resealing after injury in low temperature or low calcium, Dielectric relaxation in dimethyl sulfoxide/water mixtures studied by microwave dielectric relaxation spectroscopy, Structure and hydrogen bond dynamics of water–dimethyl sulfoxide mixtures by computer simulations, Transport and relaxation properties of dimethyl sulfoxide-water mixtures at high pressure, Density, viscosity, refractive index, and hygroscopicity of mixtures of water and dimethyl sulfoxide, Freezing point curve of dimethyl sulfoxide--water solutions, Component interactions in aqueous dimethyl sulphoxide, The study of DMSO/water and DPPC/DMSO/water system by means of the X-ray, neutron small-angle scattering, calorimetry and IR spectroscopy, Phase stability of phosphatidylcholines in dimethylsulfoxide solutions, DMSO produces a new subgel phase in DPPC: DSC and X-ray diffraction study, Investigation of the interaction of dimethyl sulfoxide with lipid membranes by small-angle neutron scattering, DMSO-induced dehydration of DPPC membranes studied by X-ray diffraction, small-angle neutron scattering, and calorimetry, Lipid membrane structure and interactions in dimethyl sulfoxide/water mixtures, Insights into the dynamics of DMSO in phosphatidylcholine bilayers, Quantitative cw Overhauser effect dynamic nuclear polarization for the analysis of local water dynamics, DMSO induces dehydration near lipid membrane surfaces, Developing a general interaction potential for hydrophobic and hydrophilic interactions, Contributions of hydration and steric (entropic) pressures to the interactions between phosphatidylcholine bilayers: Experiments with the subgel phase.

Lorenzo Breschi, Tatjana Maravic, Sandra Ribeiro Cunha, Allegra Comba, Milena Cadenaro, Leo Tjäderhane, David H. Pashley, Franklin R. Tay, Annalisa Mazzoni. At concentrations CDMSO ≥ 10 mol%, the repulsive force was too steep to obtain an accurate value of λ or L. Parameters for head group overlap (Eq. Jaclyn Raeburn, Cristina Mendoza-Cuenca, Beatrice N. Cattoz, Marc A. Solubility of d-elements salts in organic and aqueous-organic solvents: I. Journal of Photochemistry and Photobiology A: Chemistry. Distinctive Features of Water–Dimethyl Sulfoxide Mixtures: Dielectric Spectra Revisited. Journal of Molecular Graphics and Modelling. Dimethyl sulfoxide (DMSO) is a common solvent and biological additive possessing well-known utility in cellular cryoprotection and lipid membrane permeabilization, but the governing mechanisms at membrane interfaces remain poorly understood. Rongfeng Yuan, Chang Yan, Amr Tamimi, and Michael D. Fayer . S7). OHD-OKE experiments, which measure the orientational relaxation of DMSO, reveal that the DMSO orientational relaxation times are the same as orientational relaxation times found for water over a wide range of water concentrations within experimental error. The undulation force arises from the suppression of long-wavelength thermal ripples in the free-standing membranes on surface approach and can be ruled out in measurements between supported bilayers, which is the case in this work. This difference perhaps indicates that the uncompressed and fully hydrated head groups of a single bilayer extend 0.2–0.3 nm further into solution in 0% solution than they do in 7.5% solution, which is shown to be a hydration-excluded volume effect in the text. Hydration force is typically used to describe forces wherein surface-bound water is removed on compression (i.e., a shrinking head group-excluded volume on compression), giving rise to a characteristic exponential decay length of 0.3–1.0 nm (37). Author contributions: A.M.S., S.H.D., J.S., C.-Y.C., S.H., and J.N.I. the Altmetric Attention Score and how the score is calculated. 2 shows solute rH at values of CDMSO, where the SFA measurements were conducted. This work further connects measurements of surface forces, surface structure and dynamics, and surface water diffusion with significant and broad implications for soft matter systems. IR spectroscopy experiments (12) have suggested that the partially charged atoms of DMSO associate with oppositely charged moieties of gel-phase dipalmitoylphosphatidylcholine (DPPC) lipid head groups, potentially replacing water–lipid hydrogen bonds. Qianshun Wei, Dexia Zhou, Xiaoqian Li, Yuwan Chen. S. C. Nunes, J. Hümmer, V. T. Freitas, R. A. S. Ferreira, L. D. Carlos, P. Almeida, V. de Zea Bermudez. Nicolas Chéron, Margaux Naepels, Eva Pluhařová. One method to optimize fits was to minimize β, the average absolute difference between logarithms of modeled and measured forces:β=1n∑i=1n|ln(Fmeasured(Di)R)−ln(Fmodeled(Di)R)|=1n∑i=1n|ln(Fmeasured(Di)Fmodeled(Di))|,[S1]where i denotes any discrete data point (corresponding to single D and F values), and n is the total number of data points in the region to be fitted.

Quasistatic force measurements were taken in the repulsive regime (Fig. Average fitting parameters for 5% glycerol force runs were as follows: L = 0.68 ± 0.03 nm, s = 1.5 ± 0.1 nm, Do,brush = 0.96 ± 0.04 nm, fitted A = (5.3 ± 0.3) × 10−21 J, theoretical A = 5.4 × 10−21 J, and Do,vdw = 1.05 nm. The hydrolysis of dimethyl phosphate, A one-shot sequence for high-resolution diffusion-ordered spectroscopy, Direct measurement of polyethylene glycol induced depletion attraction between lipid bilayers, Isotopic substitution effects on the volumetric and viscosimetric properties of water-dimethylsulfoxide mixtures at 25° C, Hydration forces between mica surfaces in aqueous electrolyte solutions, Molecular layering of water in thin films between mica surfaces and its relation to hydration forces, On the electrostatic interaction across a salt solution between two bodies bearing unequal charges, Nonelectrolyte substitution for water in phosphatidylcholine bilayers, Dielectric spectrum of dimethyl sulfoxide/water mixtures as a function of composition, Characterization of binary solvent mixtures of DMSO with water and other cosolvents, Proceedings of the National Academy of Sciences, Earth, Atmospheric, and Planetary Sciences, www.pnas.org/lookup/suppl/doi:10.1073/pnas.1512325112/-/DCSupplemental, Correlating steric hydration forces with water dynamics through surface force and diffusion NMR measurements in a lipid–DMSO–H2O system, Opinion: The perils of biodiversity conservation during a global crisis, Inner Workings: The quest to understand neutron stars and matter at the extremes, Opinion: To stop the next pandemic, we need to unravel the origins of COVID-19. Evgeniy V. Ivanov, Elena Yu. In C, the corresponding bilayer displays little to no polymer brush character in SFA measurements.

Measurements were made on solutions containing 20 mM NaDMP (∼0.05 mol%) and 10 mM TMACl (∼0.025 mol%). Preferential solvation of lysozyme in dimethyl sulfoxide/water binary mixture probed by terahertz spectroscopy. The effect of solvent choice on the gelation and final hydrogel properties of Fmoc–diphenylalanine. The decrease in L and Do,brush observed in the SFA measurements may have a small contribution from a gradual collapse of the head groups but is mostly caused by a decrease in PC head group-excluded volume because of its desolvation.

A deeper insight into an intriguing acetonitrile–water binary mixture: synergistic effect, dynamic Stokes shift, fluorescence correlation spectroscopy, and NMR studies. Journal of Photochemistry and Photobiology A: Chemistry. Data are acquired from refs. More Benign Synthesis of Palladium Nanoparticles in Dimethyl Sulfoxide and Their Extraction into an Organic Phase. A. Tikhomirova, N. A. Bogachev, M. Yu. Yuan-Chun Wen, Hsiao-Ching Kuo, Jhong-Lin Guo, and Hsi-Wei Jia . Reactivity of Imidazole Derivatives toward Phosphate Triester in DMSO/Water Mixtures: A Comprehensive Study on the Solvent Effect. Fits at D <1.3 nm were drawn by hand. The forces and fitting parameters in Fig. Chiara H. Giammanco, Daryl B. Wong, and Michael D. Fayer . Viscosity measurements were done using a Lovis 2000 M Anton Parr Viscometer with a 1.59-mm (400 µL) glass capillary tube and stainless steel ball. A short review of recent literature. Md.

Michael J. Wen, Matthew T. Jackson, Charles M. Garner. Pascu. We see now that the monotonically increasing vesicle surface water diffusivity in going from 0 mol% to 7.5 mol% DMSO, as measured in ref. 1 and 2) results in poorer fits than those shown in Fig.

Proceedings of the National Academy of Sciences. Effect of DMSO on micellization, gelation and drug release profile of Poloxamer 407. (33) in measurements of forces between poly(ethylene oxide) (PEO) monolayers in water. Structure of Dimethylsulfoxide Water Solutions, According to Static Inductivity Data. Elzbieta Lodyga-Chruscinska, Marzena Symonowicz, Anna Sykula, Anna Bujacz, Eugenio Garribba, Magdalena Rowinska-Zyrek, Stanislaw Oldziej, Elzbieta Klewicka, Magdalena Janicka, Karolina Krolewska, Marcin Cieslak, Katarzyna Brodowska, Longin Chruscinski. Effects of dimethyl sulfoxide on the hydrogen bonding structure and dynamics of aqueous N-methylacetamide solution. Recent measurements of translational water diffusivity within ∼1 nm of the surface of unilamellar DPPC (gel phase) and dioleoylphosphatidylcholine (DOPC, fluid phase) vesicles using the Overhauser Dynamic Nuclear Polarization relaxometry technique (19) show a continual increase in water diffusivity with DMSO concentration (20). Force curves for 10% and 20% DMSO were unable to be fitted with the polymer brush equation owing to their steepness in the repulsive regime, but corresponding hand-drawn (dotted) lines were included for consistency. Structural and energetic properties of La 3+ in water/DMSO mixtures. Thiago Henrique Scarabello Stape, Roda Seseogullari-Dirihan, Leo Tjäderhane, Gabriel Abuna, Luís Roberto Marcondes Martins, Arzu Tezvergil-Mutluay.


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