External Control of Ion Transport in Nanoporous Membranes with Surfaces Modified with Self-Assembled Monolayers

and, Kyoung-Yong Chun; Stroeve, Pieter

doi:10.1021/la010066n

Cited by 46 publications

(39 citation statements)

References 16 publications

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“…Polymeric nanoporous membranes are excellent templates for growing multiscale nanostructures inside nanopores. Nanoporous membranes can be used for molecular separations [1][2][3][4][5][6][7][8][9][10], biosensing [11] and catalytic applications [12]. Moreover, PCTE membranes can be assembled with microfluidic devices as molecular gates [13,14].…”

Section: Polymeric Templates For Separation and Mass Transfer Gatesmentioning

confidence: 99%

Applications of the Polymeric Templates

Vidu¹

2019

ARA Journal

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In recent years, there has been considerable interest in synthesis of nanostructured materials. Special attention has been given to the control of particle shape and geometry. The main types of such nanostructured systems are nanoparticles, nanotubes, nanofibers and nanocables. Nanoparticles are attractive building blocks for material architectures and can be prepared from a variety of materials. On the other hand, template synthesis has been proven to be a versatile approach for preparing nanostructures, such as nanotubes, nanofibers and nanocables, with various aspect ratios. The trend toward miniaturization and the high output of integrated circuits have stimulated the development of nanostructured materials and new synthesis methods. This paper reviews the general approach for using nanoporous polymeric membrane for molecular separation and mass transfer.

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Section: Polymeric Templates For Separation and Mass Transfer Gatesmentioning

confidence: 99%

Applications of the Polymeric Templates

Vidu¹

2019

ARA Journal

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“…This shows the importance of pore size/geometry in order to make use of the electrostatic sieving effect for separation of proteins with similar molecular weights illustrates that the electrostatic interactions between proteins and pore walls are important factors in protein transport across porous membranes and that these interactions are complex. Previously, Gold nanotubule membranes have attracted attention because they can be used to control ion transport selectivity by external means, for example by changing the pH and ionic strength and applying electrical potentials [119][120][121].…”

Section: (6)mentioning

confidence: 99%

Highly ordered anodic porous alumina membrane and its surface modification approaches for biomedical application

Singh¹,

Das²

2014

IOSRJAC

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During recent years, the anodization of aluminum, due to its great commercial significance, represents one of the most important and widespread method used for the synthesis of ordered nanostructures. Whose geometry is controlled by diverse synthesis factors which include the voltage applied, the temperature of the electrochemical environment in which the synthesis is carried out, the reagent used to etch the aluminum metal and the time period of anodization. As anodic porous alumina (APA) has high porosity, pores with high aspect ratio with highly ordered pores. The matrix is well-suited for biomedical applications such as protein separation, purification, biomolecule detection, drug delivery protein crystallography and cell cultures because the biological macromolecules can easily fit into the pores of the matrix without the loss of primary biological action. In combination with surface engineering and nanobiotechnology diverse surface modifications are now being realized with nanoscale pore structures of APA that can provide high selectivity to archive a variety of applications based on specific molecular characteristics. This review observes how the structure and properties of APA related to their present and prospective uses for research in biotechnology. In addition, the role of APA are also covered in areas including, sensitive detection methods, microarrays and other molecular assays, and in creating new nanostructures for further uses within biology.

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“…[49][50][51] Applying electric potentials directly to membranes is another approach that has been demonstrated to improve the transport rate and selectivity by allowing an external control over the charges. [52][53][54] Moreover, silicon and silicon nitride surfaces can be functionalized directly by covalently attaching organic monolayers using various methods including heating, UV irradiation, and Grignard reactions.…”

Section: Membrane Performancementioning

confidence: 99%

Fabrication of functional silicon-based nanoporous membranes

Ileri

Stroeve

Palazoğlu

et al. 2012

J. Micro/Nanolith. MEMS MOEMS

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Abstract. Macroscopic porous membranes with pore diameter uniformity approaching the nanometer scale have great potential to significantly increase the speed, selectivity, and efficiency of molecular separations. We present fabrication, characterization, and molecular transport evaluation of nanoporous thin silicon-based sieves created by laser interferometric lithography (LIL). This fabrication approach is ideally suited for the integration of nanostructured pore arrays into larger microfluidic processing systems, using a simple all-silicon lithographic process. Submillimeter-scale planar arrays of uniform cylindrical and pyramidal nanopores are created in silicon nitride and silicon, respectively, with average pore diameters below 250 nm and significantly smaller standard error than commercial polycarbonate track etched (PCTE) membranes. Molecular transport properties of short cylindrical pores fabricated by LIL are compared to those of thicker commercial PCTE membranes for the first time. A 10-fold increase in pyridine pore flux is achieved with thin membranes relative to commercial sieves, without any modification of the membrane surface.

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External Control of Ion Transport in Nanoporous Membranes with Surfaces Modified with Self-Assembled Monolayers

Cited by 46 publications

References 16 publications

Applications of the Polymeric Templates

Applications of the Polymeric Templates

Highly ordered anodic porous alumina membrane and its surface modification approaches for biomedical application

Fabrication of functional silicon-based nanoporous membranes

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