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Gewählte Doctoral Thesis:

Claudia Gusenbauer (2021): CHEMICAL FORCE MICROSCOPY FOR CHARACTERIZING FUNCTIONALIZED RENEWABLE MATERIALS.
Doctoral Thesis - Institut für Holztechnologie und Nachwachsende Rohstoffe, BOKU-Universität für Bodenkultur, pp 123. UB BOKU obvsg

Data Source: ZID Abstracts
Abstract:
Nowadays, it is possible to selectively modify wood cell walls by chemical functionalization. Since the functionalization methods are fine-tuned, new methods are required to visualize the chemical surface behavior with high spatial resolution and to test the added functionality also on the wood cell wall level. Atomic force microscopy based methods are assumed to meet these requirements since they are highly sensitive and can deliver insights into the wood nanostructure below the diffraction limit of light. In this doctoral thesis, atomic force microscopy based methods were tested on native and chemically functionalized wood materials to investigate their capability for the characterization of rough and heterogonous wood surfaces. Primarily, the peak force tapping mode was used to examine the adhesion forces between chemically functionalized tips and sample in specific liquid surroundings for the visualization of the chemical surface condition. It could be demonstrated that topography and chemical surface characteristics could be provided simultaneously on lignocellulosic model surfaces or functionalized wood scaffolds. Therefore, it is proposed that the presented approaches can be adapted for the analyzes of many other biobased substrates to probe surface chemical properties with nanoscopic spatial resolution.

Betreuer: Konnerth Johannes
1. Berater: Nypelö Tiina Elina
2. Berater:

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