PRESENTATIONS & POSTERS
Exploring Organization of Amphiphilic Compounds with AFM
Sergei Magonov, PhD
Linz Conference 2008
Study of self-assembly of amphiphilic compounds, which plays important role in many technological, biological and medical applications, is one of mainstream atomic force microscopy (AFM) applications. These applications include visualization of self-organized architectures on different substrates and characterization of local mechanical and electromagnetic properties. Currently, the interest of researchers is focused on high-resolution imaging of structures in the sub-100 nm scale, which require further improvements of instrumentation, probe manufacturing and optimization of imaging conditions. In examination of local mechanical and electromagnetic properties, innovative studies are based on broadening of frequency range of oscillatory modes and simultaneous use of several frequencies. A number of applications of high-resolution imaging, studies of higher harmonics and single-pass Kelvin force microscopy to alkanes, fluoroalkanes, alkylgluconamides and several block copolymers will be discussed in the presentation. Some of these experiments were conducted in various environments that allow better understanding structural organizations of amphiphilic materials and their functionality. The use of electric pulses as an external stimuli leading to surface electrets on different materials will be also demonstrated.
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