Exploring the onset field strength of nanoscale electrospray: A detailed investigation

Zheng, Fei; Wu, Yanhao; Yi, Haojie

doi:10.1016/j.cplett.2024.141566

Chemical Physics Letters

2024

DOI: 10.1016/j.cplett.2024.141566

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Exploring the onset field strength of nanoscale electrospray: A detailed investigation

Fei Zheng,

Yanhao Wu,

Haojie Yi

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Modulation of Ion Transport in Nanopores Using Polyethylene Glycol

Zheng,

Li,

Yang

et al. 2024

Langmuir

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Ion transport in nanopores is crucial for various biological and technological processes, exhibiting unique behaviors compared to bulk solutions. In this study, we systematically explore how polyethylene glycol (PEG) modulates ion transport within a conical nanopore. Our experiments reveal that introducing PEG into the ionic solution induces a reversal in ion current rectification (ICR). We further investigate the impact of PEG concentration, molecular weight, nanopore size, and cation type on ion transport. Additionally, we assess three different configurations of PEG introduction, identifying diffusive flow driven by an asymmetric cation distribution within the nanopore as a dominant transport mechanism. Our results confirm that the interactions between PEG and cations significantly affect ion transport properties. These findings advance our understanding of macromolecular crowding effects on ion transport and suggest potential applications in iontronic devices and biomolecule sensing.

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Modulation of Ion Transport in Nanopores Using Polyethylene Glycol

Zheng,

Li,

Yang

et al. 2024

Langmuir

View full text Add to dashboard Cite

show abstract

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Exploring the onset field strength of nanoscale electrospray: A detailed investigation

Cited by 1 publication

References 32 publications

Modulation of Ion Transport in Nanopores Using Polyethylene Glycol

Modulation of Ion Transport in Nanopores Using Polyethylene Glycol

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