Droplet Formation by Chemically Fueled Self-Assembly:
The Role of Precursor Hydrophobicity
Posted on 2021-12-01 - 14:04
We
investigate active droplets that form at the expense of a chemical
fuel in aqueous buffer and vanish autonomously. Dynamic light scattering
reveals the scattered intensity, the hydrodynamic radius, and the
width of the size distribution with high precision as well as high
temporal and spatial resolutions. Comparing the resulting time-dependent
behavior of the droplet characteristics with the time-dependent concentration
of the anhydrides, the roles of the chemical reaction cycle and of
colloidal growth processes are elucidated. The droplet sizes and lifetimes
depend strongly on the hydrophobicity of the precursor, and the growth
rate is found to correlate with the deactivation rate of the product.
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Niebuur, Bart-Jan; Hegels, Hendrik; Tena-Solsona, Marta; Schwarz, Patrick S.; Boekhoven, Job; Papadakis, Christine M. (1753). Droplet Formation by Chemically Fueled Self-Assembly:
The Role of Precursor Hydrophobicity. ACS Publications. Collection. https://doi.org/10.1021/acs.jpcb.1c08034