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Nonlinear Physics Seminar:"From Molecules to Helical Ribbons - Shape and Shape Fluctuations" | The Racah Institute of Physics

Nonlinear Physics Seminar:"From Molecules to Helical Ribbons - Shape and Shape Fluctuations"

Date: 
Wed, 10/04/201913:30-15:00
Location: 
Danciger B building, Seminar room
Lecturer: Doron Grossman,
Abstract:
Self assembly of molecules into supramolecular structures is an important process through which non trivial structures are formed in nano-metric scale. The resulting structure depends on chemical and physical principles that govern the process, and may be sensitive to
the exact conditions in which they are formed. Typically, such self assembled structures are residually stressed, due to mismatch of the constituent element. Identifying the principles and ways in which different structures are formed, affects signicantly the ability to control,
guide and manipulate self assembly. In this talk I will show how to relate chemical and physical properties of single (or few) molecules to the shape and mechanics of the resulting, residually stressed, elastic of structures. I will then continue to discuss the unique thermodynamics of the ribbons stemming from these residual stresses. Our predictions are quantitatively confirmed experimentally, suggesting a new framework for quantitative study of a large variety of self-assembled nanostructures.