Zobrazeno 1 - 10
of 287
pro vyhledávání: '"Qiu, Yinghua"'
Publikováno v:
ACS Appl. Mater. Interfaces 2024, 16 (23), 30496-30505
Ionic current rectification (ICR) of charged conical nanopores has various applications in fields including nanofluidics, bio-sensing, and energy conversion, whose function is closely related to the dynamic response of nanopores. The occurrence of IC
Externí odkaz:
http://arxiv.org/abs/2406.15054
Publikováno v:
Biomicrofluidics 2024, 18 (2), 024103
Solid-state micro/nanopores play an important role in the sensing field because of their high stability and controllable size. Aiming at problems of complex processes and high costs in pore manufacturing, we propose a convenient and low-cost micro/na
Externí odkaz:
http://arxiv.org/abs/2403.10029
Publikováno v:
Physics of Fluids 36, 032011 (2024)
With the resistive-pulse technique (RPT), nanopores serve as the nanofluidic sensors of various analytes for their many physical and chemical properties. Here, we focus on the size measurement and its theoretical prediction for sub-200 nm nanoparticl
Externí odkaz:
http://arxiv.org/abs/2403.03528
Publikováno v:
J. Chem. Phys. 160, 074701 (2024)
Short nanopores find extensive applications capitalizing on their high throughput and detection resolution. Ionic behaviors through long nanopores are mainly determined by charged inner-pore walls. When pore lengths decrease to sub-200 nm, charged ex
Externí odkaz:
http://arxiv.org/abs/2402.10394
Publikováno v:
Nanoscale 2023, 15 (46), 18696-18706
Short nanopores have various applications in biosensing, desalination, and energy conversion. Here, the modulation of charged exterior surfaces on ionic transport is investigated through simulations with sub-200 nm long nanopores under applied voltag
Externí odkaz:
http://arxiv.org/abs/2402.04945
Autor:
Qiu, Yinghua, Ma, Long
Publikováno v:
Phys. Fluids 2022, 34 (11), 112010
Continuum simulations become an important tool to uncover the mysteries in nanofluidic experiments. However, fluid flow in simulation models is usually unconsidered. Here, systematical simulations are conducted to provide a quantitative understanding
Externí odkaz:
http://arxiv.org/abs/2402.04941
Influences of Divalent Ions in Natural Seawater/River Water on Nanofluidic Osmotic Energy Generation
Publikováno v:
Langmuir 2022, 38 (42), 12935-12943
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 positively charged nanopores, influences from divalent ions as counterions
Externí odkaz:
http://arxiv.org/abs/2402.04928
Publikováno v:
Electrophoresis 2022, 43 (23-24), 2428-2435
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 dependence of electric double layers on bulk concentrations, ionic conduct
Externí odkaz:
http://arxiv.org/abs/2402.04920
Publikováno v:
Physics of Fluids 2023, 35, 092007
In charged nanopores, ionic diffusion current reflects the ionic selectivity and ionic permeability of nanopores which determines the performance of osmotic energy conversion, i.e. the output power and efficiency. Here, theoretical predictions of the
Externí odkaz:
http://arxiv.org/abs/2309.07389
High-performance osmotic energy conversion requires both large ionic throughput and high ionic selectivity, which can be significantly promoted by exterior surface charges simultaneously, especially for short nanopores. Here, we investigate the enhan
Externí odkaz:
http://arxiv.org/abs/2206.03055