92 citations · 406 across the 14 of their papers we have counts for
14 papers
Influences of Electroosmotic Flow on Ionic Current through Nanopores: a Comprehensive Understanding
Yinghua Qiu, Long Ma
Continuum simulations become an important tool to uncover the mysteries in nanofluidic experiments. However, fluid flow in simulation models is usually unconsidered. Here, systemat…
Influences of Divalent Ions in Natural Seawater/River Water on Nanofluidic Osmotic Energy Generation
Fenhong Song, Xuan An, Long Ma +2
Besides the dominant NaCl, natural seawater/river water contains trace multivalent ions, which can provide effective screening to surface charges. Here, in both negatively and posi…
Characterization of the Surface Charge Property and Porosity of Track-etched Polymer Membranes
Jiakun Zhuang, Long Ma, Yinghua Qiu
As an important property of porous membranes, the surface charge property determines many ionic behaviors of nanopores, such as ionic conductance and selectivity. Based on the depe…
Effective Charged Exterior Surfaces for Enhanced Ionic Diffusion through Nanopores under Salt Gradients
Long Ma, Xuan An, Fenhong Song +1
High-performance osmotic energy conversion requires both large ionic throughput and high ionic selectivity, which can be significantly promoted by exterior surface charges simultan…
Significantly Enhanced Performance of Nanofluidic Osmotic Power Generation by Slipping Surfaces of Nanopores
Long Ma, Kabin Lin, Yinghua Qiu +4
High-performance osmotic energy conversion (OEC) with perm-selective porous membrane requires both high ionic selectivity and permeability simultaneously. Here, hydrodynamic slip i…
High-Performance Nanofluidic Osmotic Power Generation Enabled by Exterior Surface Charges under the Natural Salt Gradient
Long Ma, Zhongwu Li, Zhishan Yuan +3
High-performance osmotic energy conversion (OEC) requires both high ionic selectivity and permeability in nanopores. Here, through systematical explorations of influences from indi…
Modulation of Ionic Current Rectification in Ultra-Short Conical Nanopores
Long Ma, Zhongwu Li, Zhishan Yuan +3
Nanopores that exhibit ionic current rectification (ICR) behave like diodes, such that they transport ions more efficiently in one direction than the other. Conical nanopores have…
Effects of Surface Trapping and Contact Ion Pairing on Ion Transport in Nanopores
Zhongwu Li, Yinghua Qiu, Yan Zhang +2
Ion transport in highly-confined space is important to various applications, such as biosensing and seawater desalination with nanopores. All-atom molecular dynamics simulations ar…
Abnormal Ionic Current Rectification Caused by Reversed Electroosmotic Flow under Viscosity Gradients across Thin Nanopores
Yinghua Qiu, Zuzanna S. Siwy, Meni Wanunu
Single nanopores have attracted much scientific interest due to their versatile applications. The majority of experiments have been performed with nanopores being in contact with t…
Optimal Voltage for Nanoparticle Detection with Thin Nanopores
Yinghua Qiu
The resistive-pulse technique provides a fast and label-free method for nanoparticle detection. In order to achieve a higher sensitivity, thin nanopores, such as silicon nitride po…
Ionic Behavior in Highly Concentrated Aqueous Solutions Nanoconfined between Discretely Charged Silicon Surfaces
Yinghua Qiu, Jian Ma, Yunfei Chen
Through molecular dynamics simulations considering thermal vibration of surface atoms, ionic behaviors in concentrated NaCl solutions confined between discretely charged silicon su…
Capacitance Performance of Sub-2-nm Graphene Nanochannels in Aqueous Electrolyte
Yinghua Qiu, Yunfei Chen
Molecular dynamics simulations were used to explain the origin and properties of electrical double-layer capacitance in short graphene nanochannels with width below 2 nm. The resul…
Counterions and water molecules in charged silicon nanochannels: the influence of surface charge discreteness
Yinghua Qiu, Yunfei Chen
In order to detect the effect of the surface charge discreteness on the properties at the solid-liquid interface, molecular dynamics simulation model taking consideration of the vi…
Ion and water transport in charge-modified graphene nanopores
Yinghua Qiu, Kun Li, Weiyu Chen +3
Porous graphene has high mechanical strength and atomic layer thickness, which make it a promising material for material separation and biomolecule sensing. Electrostatic interacti…