Silicon Nitride Nanosieve Membrane

Tong, Hien D.; Jansen, Henricus V.; Gadgil, V.J.; Bostan, C.G.; Berenschot, J.W.; Rijn, C.J.M. van; Elwenspoek, M.

doi:10.1021/nl0350175

Cited by 259 publications

(207 citation statements)

References 21 publications

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“…DNA passage could be detected and discrimination between DNA fragments of differing lengths was possible. Tong et al 59 prepared arrays of nanopores in silicon nitride, with a pore width below 10 nm achieved. Such devices could be utilised for size-exclusion separation processes.…”

Section: Nanoporesmentioning

confidence: 99%

Nanoelectrodes, nanoelectrode arrays and their applications

Arrigan

2004

Analyst

462

432

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This review deals with the topic of ultrasmall electrodes, namely nanoelectrodes, arrays of these and discusses possible applications, including to analytical science. It deals exclusively with the use of nanoelectrodes in an electrochemical context. Benefits that accrue from use of very small working electrodes within electrochemical cells are discussed, followed by a review of methods for the preparation of such electrodes. Individual nanoelectrodes and arrays or ensembles of these are addressed, as are nanopore systems which seek to emulate biological transmembrane ion transport processes. Applications within physical electrochemistry, imaging science and analytical science are summarised.

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Section: Nanoporesmentioning

confidence: 99%

Nanoelectrodes, nanoelectrode arrays and their applications

Arrigan

2004

Analyst

462

432

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“…[22] This open morphology of a nanowire ensemble compared to nanometer-sized pores in inverted networks will be superior for applications dealing with large molecules and liquids, for example in microfluidic environments. [23] Integration of III-V nanowires with silicon [20] will lead to hybrid nanowire metamaterials that will benefit from existing functionalization methods [22] while maintaining the electrical and optical properties of the III-V backbone. High-density nanowire metamaterials will also be of importance for nextgeneration photovoltaic designs.…”

Section: Introductionmentioning

confidence: 99%

Epitaxial Growth of Aligned Semiconductor Nanowire Metamaterials for Photonic Applications

Muskens

Diedenhofen

Weert

et al. 2008

Adv Funct Materials

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We present a novel class of optical metamaterials consisting of high densities of aligned gallium phosphide (GaP) nanowires fabricated using metal-organic vapor phase-epitaxy. Starting from a gold island film as a catalyst for nanowire growth, a sequential combination of vapor-liquid-solid and lateral growth modes is employed to obtain a continuous tunability of the nanowire volume fraction from 7% to over 35%. By choosing different crystallographic orientations of the GaP substrate, we design metamaterials with different nanowire orientations. The anisotropy of the nanowire building blocks results in strong optical birefringence. Polarization interferometry demonstrates a very large polarization extinction contrast of 4×10 3 combined with a sharp angular resonance which holds promise for optical sensing. Nanowire metamaterials may find applications in photonics, optoelectronics, non-linear and quantum optics, microfluidics, bio-, and gas sensing.

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“…This method does not allow control over the number of pores. Pores can also be fabricated one by one using ion beam sculpting (27), focused ion beam drilling (28), e-beam lithography (29), or e-beam drilling in a transmission electron microscope (TEM) (30). Although these serial approaches can be applied to various silicon and even polymer materials, they are suitable only for preparation of membranes with low numbers of pores.…”

mentioning

confidence: 99%

Versatile ultrathin nanoporous silicon nitride membranes

Vlassiouk

Apel

Dmitriev

et al. 2009

Proc. Natl. Acad. Sci. U.S.A.

156

144

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Single-and multiple-nanopore membranes are both highly interesting for biosensing and separation processes, as well as their ability to mimic biological membranes. The density of pores, their shape, and their surface chemistry are the key factors that determine membrane transport and separation capabilities. Here, we report silicon nitride (SiN) membranes with fully controlled porosity, pore geometry, and pore surface chemistry. An ultrathin freestanding SiN platform is described with conical or doubleconical nanopores of diameters as small as several nanometers, prepared by the track-etching technique. This technique allows the membrane porosity to be tuned from one to billions of pores per square centimeter. We demonstrate the separation capabilities of these membranes by discrimination of dye and protein molecules based on their charge and size. This separation process is based on an electrostatic mechanism and operates in physiological electrolyte conditions. As we have also shown, the separation capabilities can be tuned by chemically modifying the pore walls. Compared with typical membranes with cylindrical pores, the conical and double-conical pores reported here allow for higher fluxes, a critical advantage in separation applications. In addition, the conical pore shape results in a shorter effective length, which gives advantages for single biomolecule detection applications such as nanopore-based DNA analysis.ion track-etching ͉ nanofluidics ͉ filtration ͉ SiN

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Silicon Nitride Nanosieve Membrane

Cited by 259 publications

References 21 publications

Nanoelectrodes, nanoelectrode arrays and their applications

Nanoelectrodes, nanoelectrode arrays and their applications

Epitaxial Growth of Aligned Semiconductor Nanowire Metamaterials for Photonic Applications

Versatile ultrathin nanoporous silicon nitride membranes

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