NaWiBo: In-situ interconnecting and addressing of individual nanowires

With this project, we propose a new approach toward the in-situ addressing of nanowires. The starting point is the fluidFM, an atomic force microscope (AFM) provided with microchanneled cantilevers for local liquid dispensing and stimulation of single living cells under physiological conditions. On the one hand, the accurate force feedback of the AFM allows for a reliable and automated approach of the cantilever tip onto both hard and soft surfaces. On the other hand, such microchanneled cantilevers may be loaded with whatever soluble molecules. Because of the size match between the tip aperture and the nanowire dimensions, the FluidFM is the adapted tool to locally modify devices made of nanowires.

We will focus on two not yet solved questions in physiological environment:

• individual functionalization of closely packed nanowires with specific marker biomolecules;

• fabrication of interconnecting metallic wires between micropads and conducting objects like carbon nanotubes or polymer chains, preadsorbed on an insulating surface.

posters from 2011

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