Pore Structures for High-Throughput Nanopore Devices

Nanopore devices are expected to advance the next-generation of nanobiodevices because of their strong sensing and analyzing capabilities for single molecules and bioparticles. However, the device throughputs are not sufficiently high. Although analytes pass through a nanopore by electrophoresis, th...

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Main Authors: Sou Ryuzaki, Rintaro Matsuda, Masateru Taniguchi
Format: Article
Language:English
Published: MDPI AG 2020-09-01
Series:Micromachines
Subjects:
Online Access:https://www.mdpi.com/2072-666X/11/10/893
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author Sou Ryuzaki
Rintaro Matsuda
Masateru Taniguchi
author_facet Sou Ryuzaki
Rintaro Matsuda
Masateru Taniguchi
author_sort Sou Ryuzaki
collection DOAJ
description Nanopore devices are expected to advance the next-generation of nanobiodevices because of their strong sensing and analyzing capabilities for single molecules and bioparticles. However, the device throughputs are not sufficiently high. Although analytes pass through a nanopore by electrophoresis, the electric field gradient is localized inside and around a nanopore structure. Thus, analytes located far from a nanopore cannot be driven by electrophoresis. Here, we report nanopore structures for high-throughput sensing, namely, inverted pyramid (IP)-shaped nanopore structures. Silicon-based IP-shaped nanopore structures create a homogeneous electric field gradient within a nanopore device, indicating that most of the analytes can pass through a nanopore by electrophoresis, even though the analytes are suspended far from the nanopore entrance. In addition, the nanostructures can be fabricated only by photolithography. The present study suggests a high potential for inverted pyramid shapes to serve as nanopore devices for high-throughput sensing.
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spelling doaj.art-18de0b3f75d14d9595c732e802afa78a2023-11-20T15:14:00ZengMDPI AGMicromachines2072-666X2020-09-01111089310.3390/mi11100893Pore Structures for High-Throughput Nanopore DevicesSou Ryuzaki0Rintaro Matsuda1Masateru Taniguchi2Institute for Materials Chemistry and Engineering, Kyushu University, Fukuoka 819-0395, JapanInstitute for Materials Chemistry and Engineering, Kyushu University, Fukuoka 819-0395, JapanThe Institute of Scientific and Industrial Research, Osaka University, Osaka 567-0047, JapanNanopore devices are expected to advance the next-generation of nanobiodevices because of their strong sensing and analyzing capabilities for single molecules and bioparticles. However, the device throughputs are not sufficiently high. Although analytes pass through a nanopore by electrophoresis, the electric field gradient is localized inside and around a nanopore structure. Thus, analytes located far from a nanopore cannot be driven by electrophoresis. Here, we report nanopore structures for high-throughput sensing, namely, inverted pyramid (IP)-shaped nanopore structures. Silicon-based IP-shaped nanopore structures create a homogeneous electric field gradient within a nanopore device, indicating that most of the analytes can pass through a nanopore by electrophoresis, even though the analytes are suspended far from the nanopore entrance. In addition, the nanostructures can be fabricated only by photolithography. The present study suggests a high potential for inverted pyramid shapes to serve as nanopore devices for high-throughput sensing.https://www.mdpi.com/2072-666X/11/10/893nanoporehigh-throughputelectric fieldnanofluidics
spellingShingle Sou Ryuzaki
Rintaro Matsuda
Masateru Taniguchi
Pore Structures for High-Throughput Nanopore Devices
Micromachines
nanopore
high-throughput
electric field
nanofluidics
title Pore Structures for High-Throughput Nanopore Devices
title_full Pore Structures for High-Throughput Nanopore Devices
title_fullStr Pore Structures for High-Throughput Nanopore Devices
title_full_unstemmed Pore Structures for High-Throughput Nanopore Devices
title_short Pore Structures for High-Throughput Nanopore Devices
title_sort pore structures for high throughput nanopore devices
topic nanopore
high-throughput
electric field
nanofluidics
url https://www.mdpi.com/2072-666X/11/10/893
work_keys_str_mv AT souryuzaki porestructuresforhighthroughputnanoporedevices
AT rintaromatsuda porestructuresforhighthroughputnanoporedevices
AT masaterutaniguchi porestructuresforhighthroughputnanoporedevices