Fabrication of a single sub-micron pore spanning a single crystal (100) diamond membrane and impact on particle translocation

Webb, Jennifer R.; Martin, Aiden A.; Johnson, Robert P.; Joseph, Maxim B.; Newton, Mark E.; Aharonovich, Igor; Toth, Milos; Macpherson, Julie V.

doi:10.1016/j.carbon.2017.06.055

Cited by 8 publications

(3 citation statements)

References 74 publications

(82 reference statements)

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“…1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 33 34 35 36 37 38 39 40 41 42 43 44 45 46 47 48 49 50 51 52 53 54 55 56 57 circumference and rebound back, [28][29][30] which is also a failed translocation event. Because of the size variation of nanopipette nanopore, we investigated the changes of both ionic current and potential signals when different size NPs translocate through the same nanopore.…”

Section: Experimental Setup For Probing Dynamic Events Of Dielectric mentioning

confidence: 99%

Probing Dynamic Events of Dielectric Nanoparticles by a Nanoelectrode‐Nanopore Nanopipette

et al. 2018

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In recent years, various single-entity electrochemical methods have been developed to study the dynamic events of single nanoparticles (NPs) in solution. It has been demonstrated that the assembly, transport, and translocation of metallic NPs near a nanopore entrance can be detected based on the open-circuit potential change of a floating nanoelectrode placed near the nanopore. In this study, we applied the nanopore-nanoelectrode-based method to study polystyrene (PS) NPs with various sizes, which were used as the model dielectric NPs. Furthermore, by utilizing dielectrophoretic (DEP) force applied through the nanoelectrode, PS NPs can be efficiently preconcentrated to form large assemblies outside the nanopipette tip, enabling high-throughput single NP analysis. We revealed how the interactions between NPs and between the NP and the nanopore surface affected the current and potential signals. We investigated the dynamic structures and motions of PS NPs inside the large assembly based on the complementary and correlated the ionic current and potential signals from both the nanopore and the nanoelectrode. We also compared the difference in the dynamic events between polarizable metallic NPs and non-polarizable dielectric NPs during multi-NP structure formation and individual NP transport and translocation motions.

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Section: Experimental Setup For Probing Dynamic Events Of Dielectric mentioning

confidence: 99%

Probing Dynamic Events of Dielectric Nanoparticles by a Nanoelectrode‐Nanopore Nanopipette

et al. 2018

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“…[25][26][27] The porosity of diamond crystals, lms, membranes and compacts can be achieved by a variety of methods. The most obvious top-down approach is based on post-growth treatment of solid micro-nanocrystalline diamond lms such as laser drilling, 25,28 reactive ion etching, [29][30][31] gas-mediated electron beam-induced etching, 32 and chemical etching of grain boundaries in nanocrystalline diamond lms. [33][34][35] A local etching of diamonds with catalytically active metals like Fe and Ni to pattern diamond lms and single crystals, particularly for hole formation, was used in a number of studies, [36][37][38][39][40][41][42] in which case, the treatment takes place in a hydrogen atmosphere at a temperature of about 900 °C.…”

Section: Introductionmentioning

confidence: 99%

Microporous poly- and monocrystalline diamond films produced from chemical vapor deposited diamond–germanium composites

et al. 2023

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“…It has been reported that the transport of counter‐ions can be facilitated in the ion channels because of the simultaneous improvements of their mobility and concentration therein 24,25 . Therefore, etching is a powerful technique for fabricating a large range of microstructures and nanostructures 26‐28 . According to the report, except a mass decrease, PANI was stable in 5 M H 2 SO 4 that no low‐molecular‐weight products were generated 29 .…”

Section: Introductionmentioning

confidence: 99%

Preparation of proton block and highly conductive AEM by creating PANI dominated and hydrophobicity ion channels for sulfuric acid enrichment

Xie

Ning

et al. 2021

Polymers for Advanced Techs

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Electrodialysis is widely used to separate and concentrate sulfuric acid from industrial wastewater. Nevertheless, owing to the proton leakage of anion‐exchange membrane (AEM), the concentration of recycled sulfuric acid is typically less than 20 wt.%. What is more, the restraining of proton leakage would sacrifice the conductivity of membrane, leading to the increasing of energy consumption (EC). In this work, a proton block and highly conductive polyaniline (PANI)/polyvinylidene fluoride (PVDF) membrane were prepared by creating PANI dominated and hydrophobicity ion channels through etching. The variations of solubility, structure, and electrical performance of membrane during etching process were investigated. As a result, the electrical performance of membrane, especially for the conductivity, was significantly improved owning to the formation of PANI dominated ion channels and spaces. Meanwhile, even the porosity and water content of etched membrane were improved, the anions were mainly migrated through molecular chains of PANI; the protons were still blocked by the hydrophobic pores. Further, the etched membranes with different porosities were used to enrich sulfuric acid (1 wt.%) through electrodialysis. As a result, the proton leakage was proved to be the major limitative factor of acid solution enrichment. By using the optimal etched membrane, concentrated acid (41 wt.%) was obtained with a less energy consume (EC), compared with commercial AEM.

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Fabrication of a single sub-micron pore spanning a single crystal (100) diamond membrane and impact on particle translocation

Abstract: Julie V.. (2017) Fabrication of a single submicron pore spanning a single crystal (100) diamond membrane and impact on particle translocation. Carbon, 122. pp. 319-328.

Cited by 8 publications

References 74 publications

Probing Dynamic Events of Dielectric Nanoparticles by a Nanoelectrode‐Nanopore Nanopipette

Probing Dynamic Events of Dielectric Nanoparticles by a Nanoelectrode‐Nanopore Nanopipette

Microporous poly- and monocrystalline diamond films produced from chemical vapor deposited diamond–germanium composites

Preparation of proton block and highly conductive AEM by creating PANI dominated and hydrophobicity ion channels for sulfuric acid enrichment

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