Imaging the atomic-scale structure of vanadia powder surface using ambient atomic force microscopy

Nanoindentation studies of sublimed fullerene films have been conducted using an atomic force microscope (AFM). Transfer of fullerene molecules from the as-deposited films to the AFM tip was observed during the indentation of AFM tip into some of the samples, whereas such a transfer was not observed for ion-bombarded films. The fullerene molecules transferred to the AFM tip were subsequently transported to a diamond surface when the diamond sample was scanned with the contaminated tip. This demonstrates the capability of material manipulation on a molecular scale using AFM. Atomic-scale friction of the fullerene films was measured to be low. Ability of fullerene films to form transfer film on the mating AFM tip surface may be partly responsible for low friction.

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3P-245 Nanometer-scale structure analyses of food-material by atomic force microscopy combined with resin embedded section.(Measurements,The 47th Annual Meeting of the Biophysical Society of Japan)

Seibutsu Butsuri ◽

10.2142/biophys.49.s192_2 ◽

2009 ◽

Vol 49 (supplement) ◽

pp. S192

Author(s):

Shigeru Sugiyama ◽

Kazumi Tsukamoto ◽

Kimiko Yamamoto ◽

Toshio Ohtani

Keyword(s):

Atomic Force Microscopy ◽

Annual Meeting ◽

Scale Structure ◽

Nanometer Scale ◽

Food Material ◽

Force Microscopy ◽

Atomic Force ◽

Biophysical Society

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Direct observations of mineral fluid reactions using atomic force microscopy: the specific example of calcite

Mineralogical Magazine ◽

10.1180/minmag.2012.076.1.227 ◽

2012 ◽

Vol 76 (1) ◽

pp. 227-253 ◽

Cited By ~ 69

Author(s):

E. Ruiz -Agudo ◽

C. V. Putnis

Keyword(s):

Atomic Force Microscopy ◽

Atomic Scale ◽

Physical Parameters ◽

Extensive Literature ◽

Mineral Surfaces ◽

Kinetic Measurements ◽

Force Microscopy ◽

Crystal Dissolution ◽

Direct Observations ◽

Atomic Force

AbstractAtomic force microscopy (AFM) enables in situ observations of mineral fluid reactions to be made at a nanoscale. During the past 20 years, the direct observation of mineral surfaces at molecular resolution during dissolution and growth has made significant contributions toward improvements in our understanding of the dynamics of mineral fluid reactions at the atomic scale. Observations and kinetic measurements of dissolution and growth from AFM experiments give valuable evidence for crystal dissolution and growth mechanisms, either confirming existing models or revealing their limitations. Modifications to theories can be made in the light of experimental evidence generated by AFM. Significant changes in the kinetics and mechanisms of crystallization and dissolution processes occur when the chemical and physical parameters of solutions, including the presence of impurity molecules or background electrolytes, are altered. Calcite has received considerable attention in AFM studies due to its central role in geochemical and biomineralization processes. This review summarizes the extensive literature on the dissolution and growth of calcite that has been generated by AFM studies, including the influence of fluid characteristics such as supersaturation, solution stoichiometry, pH, temperature and the presence of impurities.

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