Interaction of plasma-generated water cluster ions with chemically-modified Si surfaces investigated by infrared absorption spectroscopy

Ayumi Hirano-Iwata, Ryosuke Matsumura, Teng Ma, Yasuo Kimura, Michio Niwano, Kazuo Nishikawa

研究成果: Article査読

1 被引用数 (Scopus)

抄録

We have investigated the interaction of water cluster ions generated by discharge plasma, with chemically modified Si surfaces using infrared absorption spectroscopy in the multiple internal reflection geometry. We observe that water cluster ions readily adsorb on SiO2-covered Si surfaces to form water droplets. We demonstrate that positively- and negatively-charged cluster ions adsorb on the SiO2-covered Si surface in different manners, indicating ionic interaction of the water droplets with the negatively-charged SiO2 surface. Water droplets formed on the protein-coated surface rupture the amide bond of the proteins, suggesting the function of protein decomposition of water cluster ions.

本文言語English
論文番号035017
ジャーナルAIP Advances
6
3
DOI
出版ステータスPublished - 2016 3

ASJC Scopus subject areas

  • 物理学および天文学(全般)

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