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Improving adhesion between nanoparticles and surface of mica substrate by aminosilane modification

  • Yaoting Yin
    ,
  • Hongmei Xu
    ,
  • Ying Wang
    ,
  • Ziyu Liu
    ,
  • Sheng Zhang
    ,
  • Zhankun Weng
  • Changchun University of Science and Technology
Research Output: Contribution to journal Article Peer-review

Abstract

In the manipulation of nanoparticles for precise placement, the relatively low adhesion of the nanoparticles to the substrate surface has emerged as a problem. Owing to the fact that nanoparticles manipulated using atomic force microscopy (AFM) often cannot be accurately placed at their predetermined destinations or may even go astray, becoming “lost,” the success rate of manipulation attempts is low. We investigated the possibility of enhancing the adhesion between magnetic nanoparticles and a substrate surface by modifying a mica substrate with a solution of 3-aminopropyltriethoxysilane (APTES). The morphology of the mica surface before and after modification was analyzed, and the adhesive force was calculated by using AFM in contact mode. The effect of different APTES-solution concentrations on the adhesive force was analyzed as well. The results demonstrate that the adhesion of the nanoparticles to the modified substrate was substantially stronger than their adhesion to an unmodified surface, a finding that can be used to improve the success rate of nanoparticle manipulation.

Publication Information

Output type

Research Output: Contribution to journal Article Peer-review

Original language

English

Pages from-to (Number of pages)

Pages 399-407

Journal (Volume, Issue Number)

Plasmonics (Volume 15, Issue 2)

Publication milestones

  • Published - 09/11/2019

Publication status

Published - 09/11/2019

ISSN

1557-1955

External Publication IDs

  • handle.net: 10547/624111
  • Scopus: 85074832082

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