Electrokinetic Scanning Probe

Nadya Ostromohov; Baruch Rofman; Moran Bercovici; Govind Kaigala

doi:10.1002/smll.201904268

Electrokinetic Scanning Probe

Nadya Ostromohov
, Baruch Rofman
, Moran Bercovici
, Govind Kaigala

Mechanical Engineering

Technion - Israel Institute of Technology

Research output: Contribution to journal › Article › peer-review

Abstract

The theoretical analysis and experimental demonstration of a new concept are presented for a non-contact scanning probe, in which transport of fluid and molecules is controlled by electric fields. The electrokinetic scanning probe (ESP) enables local chemical and biochemical interactions with surfaces in liquid environments. The physical mechanism and design criteria for such a probe are presented, and its compatibility with a wide range of processing solutions and pH values are demonstrated. The applicability of the probe is shown for surface patterning in conjunction with localized heating and 250-fold analyte stacking.

Original language	English
Article number	1904268
Journal	Small
Volume	16
Issue number	5
DOIs	https://doi.org/10.1002/smll.201904268
State	Published - 1 Feb 2020

Keywords

electroosmotic flow
electroosmotic flow (EOF)
electrophoresis
scanning probes
surface analysis

ASJC Scopus subject areas

Biotechnology
Biomaterials
General Chemistry
General Materials Science

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10.1002/smll.201904268

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title = "Electrokinetic Scanning Probe",

abstract = "The theoretical analysis and experimental demonstration of a new concept are presented for a non-contact scanning probe, in which transport of fluid and molecules is controlled by electric fields. The electrokinetic scanning probe (ESP) enables local chemical and biochemical interactions with surfaces in liquid environments. The physical mechanism and design criteria for such a probe are presented, and its compatibility with a wide range of processing solutions and pH values are demonstrated. The applicability of the probe is shown for surface patterning in conjunction with localized heating and 250-fold analyte stacking.",

keywords = "electroosmotic flow, electroosmotic flow (EOF), electrophoresis, scanning probes, surface analysis",

author = "Nadya Ostromohov and Baruch Rofman and Moran Bercovici and Govind Kaigala",

note = "Funding Information: This work was supported by the Israeli Ministry of Science and Technology. The authors thank Deborah Huber for fruitful discussions, and the Technion Mechanical Engineering electronics laboratory for technical support. N.O. and G.V.K. acknowledge E. Delamarche, W. Riess, and H. Riel for their continuous support. Publisher Copyright: {\textcopyright} 2019 WILEY-VCH Verlag GmbH \& Co. KGaA, Weinheim",

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doi = "10.1002/smll.201904268",

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T1 - Electrokinetic Scanning Probe

AU - Ostromohov, Nadya

AU - Rofman, Baruch

AU - Bercovici, Moran

AU - Kaigala, Govind

N1 - Funding Information: This work was supported by the Israeli Ministry of Science and Technology. The authors thank Deborah Huber for fruitful discussions, and the Technion Mechanical Engineering electronics laboratory for technical support. N.O. and G.V.K. acknowledge E. Delamarche, W. Riess, and H. Riel for their continuous support. Publisher Copyright: © 2019 WILEY-VCH Verlag GmbH & Co. KGaA, Weinheim

PY - 2020/2/1

Y1 - 2020/2/1

N2 - The theoretical analysis and experimental demonstration of a new concept are presented for a non-contact scanning probe, in which transport of fluid and molecules is controlled by electric fields. The electrokinetic scanning probe (ESP) enables local chemical and biochemical interactions with surfaces in liquid environments. The physical mechanism and design criteria for such a probe are presented, and its compatibility with a wide range of processing solutions and pH values are demonstrated. The applicability of the probe is shown for surface patterning in conjunction with localized heating and 250-fold analyte stacking.

AB - The theoretical analysis and experimental demonstration of a new concept are presented for a non-contact scanning probe, in which transport of fluid and molecules is controlled by electric fields. The electrokinetic scanning probe (ESP) enables local chemical and biochemical interactions with surfaces in liquid environments. The physical mechanism and design criteria for such a probe are presented, and its compatibility with a wide range of processing solutions and pH values are demonstrated. The applicability of the probe is shown for surface patterning in conjunction with localized heating and 250-fold analyte stacking.

KW - electroosmotic flow

KW - electroosmotic flow (EOF)

KW - electrophoresis

KW - scanning probes

KW - surface analysis

UR - https://www.scopus.com/pages/publications/85077886873

U2 - 10.1002/smll.201904268

DO - 10.1002/smll.201904268

M3 - Article

C2 - 31885215

SN - 1613-6810

VL - 16

JO - Small

JF - Small

IS - 5

M1 - 1904268

ER -

Electrokinetic Scanning Probe

Abstract

Keywords

ASJC Scopus subject areas

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