Fabrication of nanopore on pyramid

Choi, Seong Soo; Park, Myong-Jin; Yamaguchi, Tokutaro; Kim, Sung In; Park, Kyung-Jin; Park, Nam Kyoo

doi:10.1016/j.apsusc.2014.03.058

Cited by 24 publications

(24 citation statements)

References 27 publications

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“…So the researches for synthetic nanopores that could meet these qualifications were in demand. Alternative techniques such as e-beam lithography [18,19], nanopipettes [20,21], ion-beam sculpting [22][23][24], micromolding [25,26], laser melting [27,28] and track-etch method [29][30][31][32] have been developed to fabricate and engineer synthetic nanopores to overcome the limitations of biological nanopores. The ability to control the pore size very precisely, to change the surface characteristics and to integrate with electronics or optical systems made the synthetic nanopores advantageous over the biological ones [33].…”

Section: Introductionmentioning

confidence: 99%

Nanopore detection of double stranded DNA using a track-etched polycarbonate membrane

Keçeci

San

Kaya

2015

Talanta

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Section: Introductionmentioning

confidence: 99%

Nanopore detection of double stranded DNA using a track-etched polycarbonate membrane

Keçeci

San

Kaya

2015

Talanta

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“…Electron beams, plasma etching, material deposition, and surface functionalization have been used to control the shapes and size of nanopores. 30 − 33 Materials including graphene have been utilized due to their high mechanical strength, which enables free-standing membranes to be formed to support a nanopore, in addition to widely reported low electrical noise and selectivity. 34 − 40 The graphene membranes used in the construction of these devices is exclusively single/multilayer graphene sheets suspended over voids.…”

Section: Introductionmentioning

confidence: 99%

Selectively Sized Graphene-Based Nanopores for in Situ Single Molecule Sensing

Crick

Sze

Rosillo‐Lopez

et al. 2015

ACS Appl. Mater. Interfaces

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The use of nanopore biosensors is set to be extremely important in developing precise single molecule detectors and providing highly sensitive advanced analysis of biological molecules. The precise tailoring of nanopore size is a significant step toward achieving this, as it would allow for a nanopore to be tuned to a corresponding analyte. The work presented here details a methodology for selectively opening nanopores in real-time. The tunable nanopores on a quartz nanopipette platform are fabricated using the electroetching of a graphene-based membrane constructed from individual graphene nanoflakes (ø ∼30 nm). The device design allows for in situ opening of the graphene membrane, from fully closed to fully opened (ø ∼25 nm), a feature that has yet to be reported in the literature. The translocation of DNA is studied as the pore size is varied, allowing for subfeatures of DNA to be detected with slower DNA translocations at smaller pore sizes, and the ability to observe trends as the pore is opened. This approach opens the door to creating a device that can be target to detect specific analytes.

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“…Nanopore formation out on the Au membrane using focused Ga ion beam milling techniques and high energy electron beam techniques has also been reported [3][4][5][6][7][8]. Upon high energy Ga ion impingement on the sample surface, atomic mixing occurs in the melted region within picoseconds, the ions would diffuse and formation of the nanopore would occur.…”

Section: Introductionmentioning

confidence: 89%

“…We previously reported fabrication of the nano-aperture surrounded by the periodic patterns on pyramidal probes to improve the low transmittance of light through the nanosize aperture [3][4][5]. The pyramidal nano-aperture has been found to provide excellent light confinement inside a V-shaped cavity, and an enhanced optical throughput via cavity resonance and nanofocusing [6,7].…”

Section: Introductionmentioning

confidence: 99%

Fabrication of Various Plasmonic Nano-aperture Platforms with a ~10 nm Width

Choi¹,

Kim²,

Park³

et al. 2020

Preprint

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We fabricated the nano-aperture plasmonic platforms for single molecule detection and other various applications such as infrared thermal emission device. The nano-apertures including the nanopores on the pyramid, and the nano-slits on the Au flat membrane were fabricated using a Ga ion focused ion beam drilling technique, followed by high energy electron beam irradiations dependent upon the electron beam current density. The nanopores with a few nanometer size and the nanoslit array with order of ~ 100 nm width were fabricated. Optical characteristics for the various nanoslits were examined dependent upon the slit opening width and sample thickness. The broad emission spectra from the (7x 7) slit array are obtained from spp-mediated emission in the visible and infrared region. A sharp strong infrared emission peak is also obtained due to Au nanoparticle. The fabricated Au platform can be utilized as single molecule sensor and infrared thermal emission device.

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Fabrication of nanopore on pyramid

Cited by 24 publications

References 27 publications

Nanopore detection of double stranded DNA using a track-etched polycarbonate membrane

Nanopore detection of double stranded DNA using a track-etched polycarbonate membrane

Selectively Sized Graphene-Based Nanopores for in Situ Single Molecule Sensing

Fabrication of Various Plasmonic Nano-aperture Platforms with a ~10 nm Width

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