Lysozyme Pattern Formation in Evaporating Drops

Autor: Heather Meloy Gorr, John A. Barnard, Joshua M. Zueger
Rok vydání: 2012
Předmět:
Zdroj: Langmuir. 28:4039-4042
ISSN: 1520-5827
0743-7463
DOI: 10.1021/la300125y
Popis: Liquid droplets containing suspended particles deposited on a solid, flat surface generally form ringlike structures due to the redistribution of solute during evaporation (the "coffee ring effect"). The forms of the deposited patterns depend on interactions between solute(s), solvent, and substrate. In this study, deposition patterns from droplets of a simplified model biological fluid (DI water + lysozyme) are examined by scanning probe and optical microscopy. The overall lysozyme residue morphology is complex (with both a perimeter "rim" and undulating interior) but varies little with concentration. However, the final packing of lysozyme molecules is strongly dependent on initial concentration.
Databáze: OpenAIRE