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Study of a nanoscale water cluster by atomic force microscopy
Faraday Discussions (2009)
  • Manhee Lee, Seoul National University
  • Baekman Sung, Seoul National University
  • Nicole N. Hashemi, Virginia Polytechnic Institute and State University
  • Wonho Jhe, Seoul National University
Abstract
We present a novel method for investigating a nanometric cluster of water molecules, which includes the formation and manipulation of nanometric water, and the measurement of its mechanical properties. The atomic force microscope based on the quartz tuning-fork sensor is employed to form and manipulate the nanometric water, and the theoretical tool of amplitude-modulation atomic force microscopy is used to obtain the elasticity, viscosity and dissipation energy of it. With high vertical resolution less than [similar]0.1 nm and high force sensitivity of [similar]0.01 N m−1, this tool facilitates the stable formation and manipulation of a nano-water cluster ([similar]104 molecules) in air without ‘jump-to-contact’ instability, as well as quantitative measurements of its physico-chemical properties.
Publication Date
2009
Publisher Statement
Copyright Royal Society of Chemistry 2009. Posted with permission.
Citation Information
Manhee Lee, Baekman Sung, Nicole N. Hashemi and Wonho Jhe. "Study of a nanoscale water cluster by atomic force microscopy" Faraday Discussions Vol. 141 (2009)
Available at: http://works.bepress.com/nastaran_hashemi/9/