Thank you all for the interesting comments and information about bubbles
behavior and dancing droplets!
Unfortunately, for now, I won´t be able to further investigate the process (by
reproducing the crystallization setup under a camera as suggested by Philippe
Dumas), but I will keep this in m
Le Jeudi 28 Mars 2019 12:03 CET, jai mohan
<0cab66323371-dmarc-requ...@jiscmail.ac.uk> a écrit:
A friend of mine (Angel Piñeiro) just suggested to me the "Maragoni effect",
which is likely active in the dancing droplets from Stanford and might explain
the "explosion" into separate bubbles.
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May be, I do co-relate your crystal pic with Manu Prakash at Stanford on his
work on Dancing Droplets, briefing the surface tension and evaporation ^ the
rule of two component fluids. # Since your precipitant contain PVP a shape
controlling agent
#https://med.stanford.edu/news/all-news/2015/03
Artem (and Beatriz),
Me bad, could have thought about that! I think you are right.
There were initially bubbles in each drop (7 in one case, 4 in the other).
At some point the bubbles exploded (it was an instantaneous process, not just
shrinking).
Kind regards,
Sergei
Prof. Sergei V. Str
Hi Beatriz,
Very interesting indeed. Couldn't it be the ghost printing of some mechanical
part used to make the mould of the crystallization tray ?
All the best,
Philippe
Philippe BENAS, Ph.D.
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