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@ARTICLE{Ummethala:1048103,
author = {Ummethala, Govind and Jada, Ravi and Dutta-Gupta, Shourya
and Park, Junbeom and Tavabi, Amir H. and Basak, Shibabrata
and Hooley, Robert and Sun, Hongyu and Pérez Garza, H. Hugo
and Eichel, Rüdiger-A and Dunin-Borkowski, Rafal E. and
Malladi, Sai Rama Krishna},
title = {{R}eal-time visualisation of fast nanoscale processes
during liquid reagent mixing by liquid cell transmission
electron microscopy},
journal = {Communications chemistry},
volume = {8},
number = {1},
issn = {2399-3669},
publisher = {Springer Nature},
reportid = {FZJ-2025-04495},
pages = {8},
year = {2025},
abstract = {Liquid cell transmission electron microscopy (LCTEM) is a
powerful technique for investigating crystallisation
dynamics with nanometre spatial resolution. However, probing
phenomena occurring in liquids while mixing two precursor
solutions has proven extremely challenging, requiring
sophisticated liquid cell designs. Here, we demonstrate that
introducing and withdrawing solvents in sequence makes it
possible to maintain optimal imaging conditions while mixing
liquids in a commercial liquid cell. We succeeded in
visualising a fast nanoscale crystallisation mechanism when
an organic molecule of R-BINOL-CN dissolved in chloroform
interacts with methanol. The scanning transmission electron
microscopy images recorded in real-time during the
interaction of the two volatile solvents reveal the
formation of chain-like structures of R-BINOL-CN particles,
whereas they coalesce to form single large particles when
methanol is absent. Our approach of mixing liquids
establishes a platform for novel LCTEM studies of a wide
range of electron-beam-sensitive materials, including drug
molecules, polymers and molecular amphiphiles.},
cin = {IET-1 / ER-C-1},
ddc = {540},
cid = {I:(DE-Juel1)IET-1-20110218 / I:(DE-Juel1)ER-C-1-20170209},
pnm = {1231 - Electrochemistry for Hydrogen (POF4-123)},
pid = {G:(DE-HGF)POF4-1231},
typ = {PUB:(DE-HGF)16},
doi = {10.1038/s42004-025-01407-3},
url = {https://juser.fz-juelich.de/record/1048103},
}