Morphological control in the synthesis of colloidal particles is of great interest in their industrial applications. The particle size or substrate curvature can act as a morphological modifier in the formation of wrinkling surface instabilities which can result in complicated, multimodal wave patterns. Building on our previous work, we applied the aerosol flow route towards a one-step, continuous synthesis of wrinkled and crumpled submicron lignin particles bearing size-dependent surface instability patterns. We quantitatively investigated the spectral topography of the lignin particles using cryo-electron tomography and spherical harmonic decomposition, allowing the different frequency components to be quantified in magnitude and orientation.

Harmonic analysis of surface instability patterns on colloidal lignin

2019 Spring National Meeting

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