Precision density and volume contraction measurements of ethanol–water binary mixtures using suspended microchannel resonators

Lee, Il; Park, Keunhan; Lee, Jungchul

doi:10.1016/j.sna.2013.01.046

Cited by 25 publications

(17 citation statements)

References 15 publications

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“…This SMR can weigh single nanoparticles, single bacterial cells and sub-monolayers of adsorbed proteins in water with sub-femtogram resolution. More recently, the SMRs were successfully employed to measure liquid viscosities [ 164 ], temperature-dependent density and volume contraction of binary mixtures [ 165 ], temperature variations produced by the biological heat sources [ 166 ], to handle multiple viscous samples [ 167 ] and to examine phase transitions of two materials in liquid state [ 168 ]. Table 4 summarizes the comparison of some micro-and nanochannel resonators which were widely applied for density and viscosity measurements.…”

Section: Resonator Structures and Materialsmentioning

confidence: 99%

Tunable Micro- and Nanomechanical Resonators

Zhang

Peng

et al. 2015

Sensors

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Advances in micro- and nanofabrication technologies have enabled the development of novel micro- and nanomechanical resonators which have attracted significant attention due to their fascinating physical properties and growing potential applications. In this review, we have presented a brief overview of the resonance behavior and frequency tuning principles by varying either the mass or the stiffness of resonators. The progress in micro- and nanomechanical resonators using the tuning electrode, tuning fork, and suspended channel structures and made of graphene have been reviewed. We have also highlighted some major influencing factors such as large-amplitude effect, surface effect and fluid effect on the performances of resonators. More specifically, we have addressed the effects of axial stress/strain, residual surface stress and adsorption-induced surface stress on the sensing and detection applications and discussed the current challenges. We have significantly focused on the active and passive frequency tuning methods and techniques for micro- and nanomechanical resonator applications. On one hand, we have comprehensively evaluated the advantages and disadvantages of each strategy, including active methods such as electrothermal, electrostatic, piezoelectrical, dielectric, magnetomotive, photothermal, mode-coupling as well as tension-based tuning mechanisms, and passive techniques such as post-fabrication and post-packaging tuning processes. On the other hand, the tuning capability and challenges to integrate reliable and customizable frequency tuning methods have been addressed. We have additionally concluded with a discussion of important future directions for further tunable micro- and nanomechanical resonators.

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Section: Resonator Structures and Materialsmentioning

confidence: 99%

Tunable Micro- and Nanomechanical Resonators

Zhang

Peng

et al. 2015

Sensors

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“…On the physicochemical level, water-ethanol mixtures display a non-monotonous dependence of macroscopic properties on the mixing ratio, such as volume and viscosity, 8 and refractive index. 9 Especially the volume contraction and with that the increase in viscosity has attracted great interest, 10,11 with the viscosity attaining a maximum near 0.2 mole fraction ethanol in the ethanol-water mixture at ambient temperature. 8 Whilst earlier studies have concentrated on the macroscopic properties of the highly hydrogen-bonded solvent mixtures, 12,13 more recent investigations aim to understand the non-ideal behaviour on the molecular level.…”

Section: Introductionmentioning

confidence: 99%

Picosecond self-diffusion in ethanol–water mixtures

Seydel

Edkins

2019

Phys. Chem. Chem. Phys.

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“…They also found that the integrated intensity of 1136 and 1451 cm −1 peaks become saturated when the ethanol mole fraction reaches 0.17 and the integrated intensity of 1274 and 1392 cm −1 peaks saturated at a mole fraction of 0.5. Except intensity, other properties of alcohol–water mixtures such as entropy, microstructure, sound absorption coefficient, viscosity, and volume contraction also depend on the concentrations …”

Section: Resultsmentioning

confidence: 99%

“…Except intensity, other properties of alcohol-water mixtures such as entropy, microstructure, sound absorption coefficient, viscosity, and volume contraction also depend on the concentrations. [50][51][52][53][54][55] To minimize the effect of elastic scattering and extract useful Raman signal of water in the spectral region of 50-300 cm À1 , we used the so-called R-representation method proposed by Brooker et al [56] The measured Raman intensity I(ω) can be expressed by…”

Section: Raman Spectroscopy Of Aqueous Alcohol Solutionsmentioning

confidence: 99%

Hydrogen bond network relaxation resolved by alcohol hydration (methanol, ethanol, and glycerol)

Gong

Zhou

et al. 2016

J Raman Spectroscopy

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Although the alcohol–water mixtures are ubiquitously important to beverage and pharmacy industries, it remains yet puzzling how the alcohols interact with water molecules and how the alcohol molecules functionalize the hydrogen bond network of liquid water and body fluid. We show spectrometrically that alcohol hydration softens both the H–O bond and the O:H nonbond through hydrogen bond cooperative relaxation and associated charge polarization. Observations suggested that each of the dangling hydroxide group :Ö:H− (interacts with :Ö or –H+) and the dangling methyl group C–H+ (with –H+ or :Ö) is equally capable of interacting with H2O molecules in the form of Ö:↔:Ö point compressor, H+↔H+ point breaker, and O:H–O hydrogen bond at the alcohol–water interface without charge sharing or new bond formation. The alcohol–water O:H–O formation enables the solubility and hydrophilicity of the alcohol; the H+↔H+ breaker embrittles the hydration network; the Ö:↔:Ö compression shortens the O:H nonbond and lengthens the H–O bond. H–O softening is associated with heat emission and depression of solution melting temperature; the O:H nonbond softening (due to polarization) lowers the critical temperatures for freezing. Copyright © 2016 John Wiley & Sons, Ltd.

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Precision density and volume contraction measurements of ethanol–water binary mixtures using suspended microchannel resonators

Cited by 25 publications

References 15 publications

Tunable Micro- and Nanomechanical Resonators

Tunable Micro- and Nanomechanical Resonators

Picosecond self-diffusion in ethanol–water mixtures

Hydrogen bond network relaxation resolved by alcohol hydration (methanol, ethanol, and glycerol)

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