Extended-Nanofluidics: Fundamental Technologies, Unique Liquid Properties, and Application in Chemical and Bio Analysis Methods and Devices

Mawatari, Kazuma; Kazoe, Yutaka; Shimizu, Hisashi; Pihosh, Yuriy; Kitamori, Takehiko

doi:10.1021/ac4026303

Cited by 107 publications

(91 citation statements)

References 88 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…[1][2][3][4] Effective detection, transport, and separation of target molecules or ions have been achieved by handling liquids and fluids in such nano-confinement spaces. In order to enhance the performance of nanodevices, the structures and dynamics of liquids confined in nanospaces must be clearly understood, as nano-confinement can lead to changes in liquid properties, and strongly affects the behavior of target molecules and ions.…”

Section: Introductionmentioning

confidence: 99%

Temperature and Size Effects on Structural and Dynamical Properties of Water Confined in 1 – 10 nm-scale Pores Using Proton NMR Spectroscopy

et al. 2017

View full text Add to dashboard Cite

We were able to fill 1 -10 nm-scale silica pores with water by vapor condensation, and examined the freezing phenomena, structures, and molecular motions of the confined water in the temperature range from 293 to 188 K by 1 H-NMR spectroscopy. The results showed that almost all water molecules confined in 10 nm-scale pores were frozen and that approximately half of the water confined in 1 nm-scale pores existed in the liquid state even below the freezing point. The water adsorbed on the pore surfaces was estimated as a monolayer in 2.58 nm pores and bi-and tri-layers in 6.48 nm and larger pores, respectively. Furthermore, it was clarified from the proton relaxation rate ( 1 H-1/T1) measurements that the molecular motions of adsorbed water itself were restricted by nanoconfinement and were extremely dependent on the conditions of proton exchange and hydrogen bond rearrangements of the adsorbed water.

show abstract

Section: Introductionmentioning

confidence: 99%

Temperature and Size Effects on Structural and Dynamical Properties of Water Confined in 1 – 10 nm-scale Pores Using Proton NMR Spectroscopy

et al. 2017

View full text Add to dashboard Cite

show abstract

“…10). 129 In the device, the nanofluidic channel was used for proton exchange, and the surface modification was used for the gas/liquid-phase separation. …”

Section: ·3 Capillary Condensation In Nanofluidic Systemsmentioning

confidence: 99%

Interfacial Phenomena and Fluid Control in Micro/Nanofluidics

et al. 2016

View full text Add to dashboard Cite

“…Recent LOC devices also deal with the realm of socalled extended nanospace [26,27]. Injection of a liquid sample suspended with nanoparticles with a diameter of 64 nm from a microchannel with a height of 6 μm into the nanochannel with a height of 410 nm was found to lead to the difference of particle concentration between the microchannel and nanochannel [26].…”

Section: Introductionmentioning

confidence: 99%

Suspended particle transport through constriction channel with Brownian motion

Hanasaki

Walther

2017

Phys. Rev. E

View full text Add to dashboard Cite

It is well known that translocation events of a polymer or rod through pores or narrower parts of microand nanochannels have a stochastic nature due to the Brownian motion. However, it is not clear whether the objects of interest need to have a larger size than the entrance to exhibit the deviation from the dynamics of the surrounding fluid. We show by numerical analysis that the particle injection into the narrower part of the channel is affected by thermal fluctuation, where the particles have spherical symmetry and are smaller than the height of the constriction. The Péclet number (Pe) is the order parameter that governs the phenomena, which clarifies the spatio-temporal significance of Brownian motion compared to hydrodynamics. Furthermore, we find that there exists an optimal condition of Pe to attain the highest flow rate of particles relative to the dispersant fluid flow. Our finding is important in science and technology from nanopore DNA sequencers and lab-on-a-chip devices to filtration by porous materials and chromatography.

show abstract

Extended-Nanofluidics: Fundamental Technologies, Unique Liquid Properties, and Application in Chemical and Bio Analysis Methods and Devices

Cited by 107 publications

References 88 publications

Temperature and Size Effects on Structural and Dynamical Properties of Water Confined in 1 – 10 nm-scale Pores Using Proton NMR Spectroscopy

Temperature and Size Effects on Structural and Dynamical Properties of Water Confined in 1 – 10 nm-scale Pores Using Proton NMR Spectroscopy

Interfacial Phenomena and Fluid Control in Micro/Nanofluidics

Suspended particle transport through constriction channel with Brownian motion

Contact Info

Product

Resources

About