Crack patterns in drying protein solution drops
软凝聚态物质
2015-06-24 v1 材料科学
摘要
A deposited drop of bovine serum albumin salt solution experiences both gelation and fracturation during evaporation. The cracks appearing at the edge of the gelling drop are regularly spaced, due to the competition between the evaporation-induced and relaxation-induced stress evolution. Subsequently, the mean crack spacing evolves in an unexpected way, being inversely proportional instead of proportional to the deposit thickness. This evolution has been ascribed to the change with time of the average shrinkage stress, the crack patterning being purely elastic instead of evaporation-controlled.
引用
@article{arxiv.cond-mat/0402258,
title = {Crack patterns in drying protein solution drops},
author = {Celine Annarelli and Jean Fornazero and Jacques Bert and Jean Colombani},
journal= {arXiv preprint arXiv:cond-mat/0402258},
year = {2015}
}