A5004378787- Electrostatics and Colloid Interactions
- Nanopore and Nanochannel Transport Studies
- Microfluidic and Bio-sensing Technologies
- Membrane-based Ion Separation Techniques
- Microfluidic and Capillary Electrophoresis Applications
- Geophysical and Geoelectrical Methods
- Fuel Cells and Related Materials
- Coagulation and Flocculation Studies
- Minerals Flotation and Separation Techniques
- Membrane Separation Technologies
- Electrowetting and Microfluidic Technologies
- Material Dynamics and Properties
- Electrochemical Analysis and Applications
- Surfactants and Colloidal Systems
- Spectroscopy and Quantum Chemical Studies
- Lipid Membrane Structure and Behavior
- Analytical Chemistry and Sensors
- Iron oxide chemistry and applications
- Crystallization and Solubility Studies
- Lattice Boltzmann Simulation Studies
- Fecal contamination and water quality
- nanoparticles nucleation surface interactions
- Electrohydrodynamics and Fluid Dynamics
- Pickering emulsions and particle stabilization
- Aerosol Filtration and Electrostatic Precipitation
National Taiwan University
2015-2024
National Taiwan University of Science and Technology
2017-2021
Tamkang University
1989-2011
City University of Hong Kong
2008
University of California, Davis
2008
The University of Texas at Austin
2006
National Ilan University
2004-2005
National Yang Ming Chiao Tung University
2004
Chung Shan Medical University Hospital
2004
Lehigh University
2004
Although challenges remain, synergistic adjusting various microstructures and photo/electrochemical parameters of graphitic carbon nitride (g-C3 N4 ) in photocatalytic hydrogen evolution reaction (HER) are the keys to alleviating energy crisis environmental pollution. In this work, a novel nitrogen-defective sulfur-doped g-C3 (S-g-C3 -D) is designed elaborately. Subsequent physical chemical characterization proved that developed S-g-C3 -D not only displays well-defined 2D lamellar morphology...
Nanopores functionalized with synthetic or biological polyelectrolyte (PE) brushes have significant potentials to rectify ionic current and probe single biomacromolecules. In this work, electric-field-induced ion transport the resulting conductance in a PE-modified nanopore are theoretically studied using continuum-based model, composed of coupled Poisson–Nernst–Planck (PNP) equations for mass transport, Stokes Brinkman hydrodynamic fields exterior interior PE layer, respectively. Because...
Harvesting electrical energy by nanofluidic reverse electrodialysis.
The surface charge property of nanofluidic devices plays an essential role in electrokinetic transport ions, fluids, and particles them. field effect transistor (FET), referring to a nanochannel embedded with electrically controllable gate electrode, provides simple way rapidly regulate its property, which turn controls the phenomena within nanochannel. In this study, approximate analytical expressions are derived for first time estimate surface-charge electroosmotic flow (EOF)...
Nanofluidic osmotic power, which converts a difference in salinity between brine and fresh water into electricity with nanoscale channels, has received more attention recent years. It is long believed that to gain high-performance highly charged channel materials should be exploited so as enhance the ion selectivity. In this paper, we report counterintuitive surface-charge-density-dependent power single funnel-shaped nanochannel (FSN), violating previous viewpoint. For nanochannel,...
Inspired by MXene nanosheets and their regulation of surface functional groups, a series Ti3C2-MXene-based single TM atom electrocatalysts with doped boron (B) (TM@Ti3C2O2-xBx, is V, Cr, Mn, Fe, Co or Ni, x = 0.11) are proposed for achieving high performance catalytic CO2 reduction reaction (CO2RR). The results reveal that the B involves in adsorption molecules CO intermediates CO2RR. TM-to-C B-to-C π-back bonding contribute to activation Enough electrons from occupied orbitals can be...
Nanopores have emerged as promising next-generation devices for DNA sequencing technology. The two major challenges in such are: (i) find an efficient way to raise the capture rate prior funnelling a nanopore, and (ii) reduce translocation velocity inside it so that single base resolution can be attained efficiently. To achieve these, novel soft nanopore comprising solid-state functionalized layer is proposed regulate electrokinetic translocation. We show that, addition presence of...
The influence of electroosmotic flow (EOF) on the behavior ionic current rectification (ICR) in a conical nanopore connecting two large identical reservoirs is investigated. In particular, effect type salt examined by considering LiCl, NaCl, and KCl. We show that neglecting EOF capable influencing ICR both quantitatively qualitatively. If neglected, factor at each level applied electric potential bias across for case LiCl (KCl) always largest (smallest). However, if taken into account,...
The behavior of ionic current rectification (ICR) in a conical nanopore with its surface modified by pH-tunable polyelectrolyte (PE) brushes connecting two large reservoirs subject to an applied electric field and salt gradient is investigated. Parameters including the solution pH, types species, strength gradient, potential bias are examined for their influences on factor, mechanisms involved investigated comprehensively. ICR depends highly charged conditions PE layer, level geometry...
Tuning of ion and nanoparticle transport is validated through applying a salt gradient in two types nanopores: the inner wall nanopore has bipolar charges its outer neutral (type I), both walls have II). The current rectification (ICR) behavior these nanopores can be regulated by an applied gradient: if it small, degree ICR type II more significant than that I nanopore; reversed trend observed at sufficiently large gradient. If electric field same direction, exhibits features are not...
Due to its potential applications in biotechnology, ion current rectification (ICR) arising from the asymmetric nature of transport a nanochannel has drawn attention researchers various fields. Previous studies usually neglect effects osmotic and electroosmotic flows. In this study, more general model taking account these is adopted describe ICR behavior conical nanopore. The influences cone angle, surface charge density, bulk salt concentration on are investigated, mechanisms proposed...
The ion current rectification behavior of bioinspired nanopores is modeled by adopting a bullet-shaped nanopore having pH-tunable zwitterionic surface, focusing on discussing the underlying mechanisms. We show that with its specific geometry, such capable exhibiting several interesting behaviors, including concentration polarization and rectification. influences shape, solution pH, bulk salt associated are examined. found if pH exceeds isoelectric point, factor has local maximum as curvature...
The ionic current rectification (ICR) is studied theoretically by considering a pH-regulated, conical nanopore. In particular, the effect of electroosmotic flow (EOF), which was often neglected in previous studies, investigated solving set coupled Poisson, Nernst-Planck, and Navier-Stokes equations. behaviors ICR under various conditions are examined varying solution pH, bulk concentration, applied electric potential bias. We show that EOF significant when concentration medium high, pH far...