Results 51 to 60 of about 47,549 (275)

Strain-induced fabrication of anisotropic nanopores by in-situ E-beam irradiation

Journal of Materials Research and Technology
Anisotropic nanopores are essential to regulate materials' anisotropic performance including thermal conductivity, ion blocking and so on. Nevertheless, fabricating anisotropic nanopores remains challenging because the formation mechanism is ambiguous ...
Weiwei Xia, Yu Wang, Quan An, Lianyang Chen, Ran Cai, Liang Chu   +5 more
doaj   +1 more source

Electrochemical sensing at nanoporous film‐coated electrodes

Electrochemical Science Advances, 2022
In this paper, we highlight the uniqueness of nanoporous film‐coated electrodes as electrochemical sensing platforms. Specifically, we focus on discussing electrodes coated with insulator‐based monolithic films comprising vertically‐oriented, rigid ...
Takashi Ito, Akash Nathani
doaj   +1 more source

Fabrication of Atomically Precise Nanopores in Hexagonal Boron Nitride [PDF]

, 2017
We demonstrate the fabrication of individual nanopores in hexagonal boron nitride (hBN) with atomically precise control of the pore size. Previous methods of pore production in other 2D materials create pores of irregular geometry with imprecise ...
Aloni, Shaul, Dimitrov, Edgar, Dunn, Gabriel, Gilbert, S. Matt, Pham, Thang, Shevitski, Brian, Zettl, Alex   +6 more
core   +1 more source

Model of ionic currents through microtubule nanopores and the lumen

, 2009
It has been suggested that microtubules and other cytoskeletal filaments may act as electrical transmission lines. An electrical circuit model of the microtubule is constructed incorporating features of its cylindrical structure with nanopores in its ...
A. M. Gomez, Avner Priel, D. K. Meyer, Eric Carpenter, Holly Freedman, J. A. Tuszynski, J. A. Tuszynski, Jack A. Tuszynski, Sergei Y. Noskov, V. A. Maltsev, Vahid Rezania   +10 more
core   +1 more source

Electrophoresis of a polyelectrolyte through a nanopore [PDF]

, 2006
A hydrodynamic model for determining the electrophoretic speed of a polyelectrolyte through a nanopore is presented. It is assumed that the speed is determined by a balance of electrical and viscous forces arising from within the pore and that classical ...
E. Lauga, F. Morrison, Jr., F. Oosawa, G. Batchelor, H. Helmholtz, M. Smoluchowski, S. Ghosal, Sandip Ghosal, W. Russel   +8 more
core   +2 more sources

Multiscale Structuring of Hydroxyapatite via Two‐Photon Lithography of Nanocomposites

Advanced Functional Materials, EarlyView.
Hydroxyapatite scaffolds are of great interest in bone tissue engineering applications, ranging from 3D cell culture to regenerative medicine. Using two‐photon lithography of a transparent nanocomposite, hydroxyapatite microstructures with features ranging from submicron to centimeter‐scale are fabricated. This allows to mimic the natural bone geometry,
Leonhard Hambitzer, Jan Mathis Hornbostel, Richard Prediger, Sebastian Kluck, Michael Daub, Cornelia Lee‐Thedieck, Frederik Kotz‐Helmer   +6 more
wiley   +1 more source

Scan-Rate-Dependent Ion Current Rectification in Bipolar Interfacial Nanopores

Micromachines
This study presents a theoretical investigation into the voltammetric behavior of bipolar interfacial nanopores due to the effect of potential scan rate (1–1000 V/s). Finite element method (FEM) is utilized to explore the current–voltage (I–V) properties
Xiaoling Zhang, Yunjiao Wang, Jiahui Zheng, Chen Yang, Deqiang Wang   +4 more
doaj   +1 more source

Conical nanopore membranes: solvent shaping of nanopores [PDF]

Nanotechnology, 2006
We have undertaken a systematic investigation of the influence of ethanol on the shape of conical pores produced by the track-etch technique in poly(ethylene terephthalate) films. We have found that the cone angle of the conical nanopore generated is dependent on the amount of ethanol present in an alkaline etching solution.
P. SCOPECE, L. A. BAKER, UGO, Paolo, C. R. MARTIN   +3 more
openaire   +2 more sources

Solar Heating Enhanced Selective Recovery of Metal Ions Through Flowing Electrodes Enabled by Hybrid Carbon Nanostructures

Advanced Functional Materials, EarlyView.
A new electrochemical system based on a microporous hybrid of carbon nanoplatelets and nanotubes to selectively capture Ni2+ from wastewater is constructed. The system temperature rises rapidly when irradiated with sunlight, which enhances the Ni2+ removal rate by 250% and the selectivity by 53%, and the energy consumption is also reduced by 51 ...
Ziquan Wang, Jiaqi Chen, Qiuru Lin, Mingxing Liang, Bo Yang, Yantao Chen, Minjun Kim, Yusuke Yamauchi, Stephen J. Eichhorn, Zhiqun Lin, Magdalena Titirici, Libo Deng   +11 more
wiley   +1 more source

Beta-Barrel Nanopores as Diagnostic Sensors: An Engineering Perspective

Biosensors
Biological nanopores are ultrasensitive and highly attractive platforms for disease diagnostics, including the sequencing of viral and microbial genes and the detection of biomarkers and pathogens.
Rani Wiswedel, Anh Thi Ngoc Bui, Jinhyung Kim, Mi-Kyung Lee   +3 more
doaj   +1 more source