Graphene can be considered as an ideal membrane since its thickness is only one carbon diameter. In this study, using molecular dynamics simulations, we investigate water transport through a porous graphene and compare the results with thin (less than 10 nm in thickness/length) nanotube (CNT) membranes. For smaller diameter pores, where single-file structure obtained, CNT membranes provide higher flux compared to larger not single-file, Furthermore, membranes, did vary significantly of...

We investigate reverse osmosis through commonly used polymeric and advanced inorganic nanotube based semipermeable membranes by performing nonequilibrium molecular dynamics simulations. Simulations indicate that there is a significantly higher water flux boron-nitride (BNNT) carbon (CNT) compared to polymethyl methacrylate (PMMA) pore, slightly BNNT as CNT. The calculated permeation coefficient in reasonable agreement with the theoretical single-file “hopping” model. Potential of mean force...

An ultrathin graphene membrane is a promising candidate for various applications such as gas separation, water purification, biosensors, etc. In this study, we investigate transport mechanisms and hydrodynamic properties flux, pressure variation, velocity, viscosity, slip length, Due to the unique structure, confined in radial direction layered axial of pore, viscosity length increase with decrease pore radius, contrast carbon nanotube. As diameter increases, mechanism transitions from...

Graphene nanopore is a promising device for single molecule sensing, including DNA bases, as its atom thickness provides high spatial resolution. To attain sensitivity, the size of should be comparable to pore diameter. However, when diameter approaches molecule, ion properties and dynamics may deviate from bulk values continuum analysis not accurate. In this paper, we investigate static dynamic ions with without an external voltage drop in sub-5-nm graphene nanopores using molecular...

Carbon nanotube–based membranes have gained significant attention due to their transport efficiency and wide range of applications, including molecular sieving sensing. Recently, in order attain high rates, many studies focused on reducing membrane thickness. A reduction thickness results the dominance entrance/exit effects over surface effects, particularly for carbon nanotubes (CNTs), hydrophobicity. However, experimentally obtained nanoscale flow rate data span a range, are often...

Abstract The potential of laser‐induced graphene (LIG), recognized for its distinct attributes in diverse fields, has significantly grown. However, the creation LIG using colorless polyimide (CPI) films remains unexplored. This research sheds light on graphitization technique generating from CPI via laser techniques, a process validated through ReaxFF simulations. It is also illustrated that integrated with fluorine atoms possesses an elevated porous configuration, rendering it apt...

Abstract A novel and highly efficient methodology to regulate (enhance or suppress) the Volmer–Weber 3D growth mode of ultra‐thin (<10 nm) Ag layers by modulating surface stoichiometry ZnO substrates prior deposition is presented. Relative pristine layers, oxygen‐deficient states formed preferential removal oxygen atoms remarkably improve layer wettability, whereas oxygen‐excessive atom incorporation strongly facilitate agglomeration. The dissimilar nucleation coalescence dynamics are...

We investigated the effect of electric field on single-file reverse osmosis (RO) water flux using molecular dynamics simulations. The is generated by introducing oppositely charged biomolecules to salt solution and pure chambers attached nanopore. Simulation results indicate that an in direction RO enhances while opposite it suppresses flux. When enhanced, dipoles are aligned field. addition led a 3 molecules ns−1 constantly maintaining dipole vectors field, this superimposed pressure driven

Recent years have seen a growing interest in zero-dimensional (0D) transport phenomena occurring across two-dimensional (2D) materials for their potential applications to nanopore technology such as ion separation and molecular sensing. Herein, we investigate through 1 nm-wide nanopores Ti

By using the advantages of carbon nanotubes (CNTs), such as their excellent mechanical properties and low density, CNT-reinforced metal matrix composites (MMCs) are expected to overcome limitations conventional materials, i.e., high density ductility. To understand behavior composite it is necessary observe at molecular level effect various factors, radius content CNTs. Therefore, in this study, CNT on CNT-Al was observed a series dynamics simulations, particularly focusing MMCs with large...

Abstract Transient receptor potential subfamily M member 7 (TRPM7), a mechanosensitive Ca 2+ channel, plays crucial role in intracellular homeostasis. However, it is currently unclear how cell mechanical cues control TRPM7 activity and its associated influx at plasma membrane microdomains. Using two different types of biosensors (Lyn-D3cpv Kras-D3cpv) based on fluorescence resonance energy transfer, we investigate generated by the TRPM7-specific agonist naltriben mediated detergent-resistant...

A Reply to the Comment by D. J. Bonthuis et al..Received 25 May 2010DOI:https://doi.org/10.1103/PhysRevLett.105.209402© 2010 The American Physical Society

Abstract Metal matrix nanocomposites have been actively studied to discover the characteristics of a new class materials. In present study, metal are investigated using molecular dynamics simulations compressive behavior nanoporous carbon nanotube (CNT)-aluminum (Al) composites that density approximately 77% pure Al. The weight-reduced exhibited an enhanced Young’s modulus 138%, and strength degraded by 13% compared with Through stress decomposition into CNT Al constituents, it was observed...

Abstract Recent advances in the development of two-dimensional (2D) materials have facilitated a wide variety surface chemical characteristics obtained by composing atomic species, pore functionalization, etc. The present study focused on how such as hydrophilicity affects water transport rate hexagonal 2D membranes. membrane–water interaction strength was tuned to change hydrophilicity, and sub-nanometer used investigate single-file flux, which is known retain excellent salt rejection. Due...

In this study, core technologies are developed for a bogie system to enable the run on track that has steep gradient and sharp curves. The is designed minimum curve radius of 10 m by developing independently rotating wheels axles. It also maximum 180‰ with reduced noise an elastic pinion. traction motor power required calculated reflected in design system. addition, band braking improve force while running track. main parts tested evaluate their performance subsequently applied systems...

A mechanosensitive ion channel, Piezo1 induces non-selective cation flux in response to various mechanical stresses. However, the biological interpretation and underlying mechanisms of cells resulting from activation remain elusive. This study elucidates Piezo1-mediated Ca 2+ influx driven by channel cellular behavior using novel Förster Resonance Energy Transfer (FRET)-based biosensors single-cell imaging analysis. Results reveal that extracellular via requires intact caveolin, cholesterol,...

In this study, the mechanical properties of light nanoporous Carbon nanotubes (CNT)-Aluminum (Al) composites were investigated using atomistic tensile simulations. High volume fractions large size CNT embedded in Al matrix to reduce weight by 23%. The lightweight CNT-Al composite exhibited enhanced properties, including 105.8, 246.9 and 243.7% improvement for strength, fracture toughness, elastic modulus, respectively. decomposition total stress into its components indicated due shear...

Ion transport through nanopores is a major biological signal transduction mechanism that converts various external stimuli into electrical signals. However, despite potential applications in fields such as sensing, versatile functions comparable to those of cell membranes have not yet been achieved synthetic nanopores. In this study, the possibility mechanical-to-electrical was explored using two-dimensional MXene Molecular dynamics simulations were used measure change ionic currents when...