On the dynamics of the lyophobic colloids

Apostoł, M.; Cune, L. C.

doi:10.1016/j.chemphys.2019.110660

Cited by 6 publications

(2 citation statements)

References 25 publications

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“…Several attempts have been made to account the limitations of DLVO theory. Long‐range attractive interaction between objects carrying like charges has been reported and different theories have been proposed to explain this phenomenon 24,58‐62 . Sogami and Ise proposed that like‐charged macroions with high surface charges show long‐range attraction and short‐range repulsion 58,63 .…”

Section: Discussionmentioning

confidence: 99%

“…Long-range attractive interaction between objects carrying like charges has been reported and different theories have been proposed to explain this phenomenon. 24,[58][59][60][61][62] Sogami and Ise proposed that like-charged macroions with high surface charges show long-range attraction and short-range repulsion. 58,63 Grier's and other groups confirmed this long-range attraction force between the samely charged particle pairs, but only when the particle pairs are near one, or a pair of, samely charged walls.…”

Section: Prediction On the Inter-particle Gapmentioning

confidence: 99%

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Study on self‐assembly of colloidal particles at high ionic strength with stimulated emission depletion microscopy

Neupane

Zhong

Wang

2020

Engineering Reports

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Understanding the spatial organization of nano-and micro-sized particle is very important in the fabrication of complex structures having unprecedented properties. Study on self-assembly of submicroscopic colloidal particles at high ionic strength solution at single particle resolution can provide new insight into the nanoscale interactions. In this study, we studied the self assembly behavior of negatively charged 0.2 and 1 μm colloidal particles at high ionic strength on glass-solution interface that is, in situ environment. The self-assembled 0.2 μm particles could not be resolved with conventional confocal and epi-fluorescent microscopy, so a home-built continuous wave stimulated emission depletion (STED) microscope was used for the study. We found that particles self-assemble into ordered and disordered structures at higher and lower ionic strength solution, respectively. The optical imaging methods allowed us to measure inter-particle gap at second energy minimum directly. Interestingly, we found that the inter-particle gap in the wet self-assembly higher than the classical Derjaguin, Landau, Verwey, and Overbeek (DLVO) theory predicted. The in situ investigation of particle self-assembly at high ionic strength will provide more insight for the understanding nanoscale interactions.

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Section: Discussionmentioning

confidence: 99%