2023
DOI: 10.1021/acsanm.3c00960
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Highly Rectifying Conical Nanopores in Amorphous SiO2 Membranes for Nanofluidic Osmotic Power Generation and Electroosmotic Pumps

Abstract: Nanopore membranes are a versatile platform for a wide range of applications ranging from medical sensing to filtration and clean energy generation. To attain high-flux rectifying ionic flow, it is required to produce short channels exhibiting asymmetric surface charge distributions. This work reports on a system of track etched conical nanopores in amorphous SiO2 membranes, fabricated using the scalable track etch technique. Pores are fabricated by irradiation of 920 ± 5 nm thick SiO2 windows with 2.2 GeV 197… Show more

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Cited by 4 publications
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“…Biological nanopores exhibit high detection resolution at the sub-nanometre scale [8] but have the disadvantages of unchangeable pore sizes, susceptibility to environmental influences and poor mechanical stability [9]. Alternatively, materials used as solid-state nanopores include Si 3 N 4 [10,11], SiC [12], SiO 2 [13,14], Al 2 O 3 [15], graphene [16][17][18][19][20], MoS 2 [21] and WS 2 [22]. Solid-state nanopores, with their controllable shapes and sizes and good stability, are easier to integrate into biosensors for use in embedded structures and electronic devices.…”
Section: Introductionmentioning
confidence: 99%
“…Biological nanopores exhibit high detection resolution at the sub-nanometre scale [8] but have the disadvantages of unchangeable pore sizes, susceptibility to environmental influences and poor mechanical stability [9]. Alternatively, materials used as solid-state nanopores include Si 3 N 4 [10,11], SiC [12], SiO 2 [13,14], Al 2 O 3 [15], graphene [16][17][18][19][20], MoS 2 [21] and WS 2 [22]. Solid-state nanopores, with their controllable shapes and sizes and good stability, are easier to integrate into biosensors for use in embedded structures and electronic devices.…”
Section: Introductionmentioning
confidence: 99%