Development of self-sensing probe with a high aspect ratio shape probe in liquid condition

S. Ito, F. Iwata

Research output: Chapter in Book/Report/Conference proceedingConference contribution

Abstract

Deposition and injection of a small amount material are important techniques for various fields. In particular, in biological fields, it is important to deposit the materials in liquid condition. Atomic force microscope (AFM) can also be used for the local deposition of materials on surface [1]. However, conventional AFM tip is not satisfactory for the deposition in a liquid because of the diffusion of the materials. In the recent years, a glass nanopipette, which has an aperture with nanometer-scale diameter, has been employed as a functional probe of SPMs since the nanopipette can be filled with various kinds of liquid solution inside [2]. Scanning ion-conductance microscope (SICM) is known as a kind of SPM with a nanopipette probe [3]. SICM uses the ionic-conductance field at the edge of the nanopipette to control the probesurface distance. SICM has also been applied for the deposition of the biological materials [4]. However, in depositions using SICM, the deposited material is diffused in the liquid because of the gap of several tens nanometer between the probe edge and the surface. Therefore, the diameter of the deposited dots is much larger than that of the nanopipette aperture [4]. To realize the aperture-size deposition domains, it is necessary to reduce the probe-surface distance during the deposition. However, it is difficult for the nanopipette probe to apply an optical lever method because the nanopipette is long and straight shape. Therefore, it is necessary to develop a selfsensing probe which includes a sensor for detection of the probe displacement. In this paper, we introduce a self-sensing probe with the nanopipette for the AFM observation in the liquid. In order to control the distance between the probe edge and the surface in liquid condition, the nanopipette is employed as a high aspect ratio shape probe. As a performance of the developed self-sensing AFM probe, topographical image was obtained in liquid condition.

Original languageEnglish
Title of host publicationProceedings of the 12th International Conference of the European Society for Precision Engineering and Nanotechnology, EUSPEN 2012
EditorsPaul Shore, H. Spaan, Theresa Burke
Publishereuspen
Pages470-473
Number of pages4
ISBN (Electronic)9780956679000
Publication statusPublished - 2012 Jan 1
Event12th International Conference of the European Society for Precision Engineering and Nanotechnology, EUSPEN 2012 - Stockholm, Sweden
Duration: 2012 Jun 42012 Jun 7

Publication series

NameProceedings of the 12th International Conference of the European Society for Precision Engineering and Nanotechnology, EUSPEN 2012
Volume1

Other

Other12th International Conference of the European Society for Precision Engineering and Nanotechnology, EUSPEN 2012
CountrySweden
CityStockholm
Period12/6/412/6/7

ASJC Scopus subject areas

  • Industrial and Manufacturing Engineering
  • Mechanical Engineering
  • Instrumentation
  • Environmental Engineering
  • Materials Science(all)

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