ArticleProceedings of the National Academy of Sciences of the United States of America2015
Ideal probe single-molecule experiments reveal the intrinsic dynamic heterogeneity of a supercooled liquid.
Article in Proceedings of the National Academy of Sciences of the United States of America, 2015. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 9 papers.
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Who cites it
9 citing papers in PubMed.
- Advancements in Novel Mechano-Rheological Probes for Studying Glassy Dynamics in Nanoconfined Thin Polymer Films.ACS polymers Au · 2024Review
- How Segmental Dynamics and Mesh Confinement Determine the Selective Diffusivity of Molecules in Cross-Linked Dense Polymer Networks.ACS central science · 2023Article
- Elucidation of the physical factors that control activated transport of penetrants in chemically complex glass-forming liquids.Proceedings of the National Academy of Sciences of the United States of America · 2022Article
- Single molecule demonstration of Debye-Stokes-Einstein breakdown in polystyrene near the glass transition temperature.Nature communications · 2022Article
- Single Nanoparticle Tracking Reveals Efficient Long-Distance Undercurrent Transport in Upper Fluid of Bacterial Swarms.iScience · 2019Article
- Fluid Phase Coexistence in Biological Membrane: Insights from Local Nonaffine Deformation of Lipids.Biophysical journal · 2018Article
- Correlated matrix-fluctuation-mediated activated transport of dilute penetrants in glass-forming liquids and suspensions.The Journal of chemical physics · 2017Article
- Viscosity of deeply supercooled water and its coupling to molecular diffusion.Proceedings of the National Academy of Sciences of the United States of America · 2015Article
- Probing liquid dynamics, one molecule at a time.Proceedings of the National Academy of Sciences of the United States of America · 2015Article
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Abstract
The concept of dynamic heterogeneity and the picture of the supercooled liquid as a mosaic of environments with distinct dynamics that interchange in time have been invoked to explain the nonexponential relaxations measured in these systems. The spatial extent and temporal persistence of these regions of distinct dynamics have remained challenging to identify. Here, single-molecule fluorescence measurements using a probe similar in size and mobility to the host o-terphenyl unambiguously reveal exponential relaxations distributed in time and space and directly demonstrate ergodicity of the system down to the glass transition temperature. In the temperature range probed, at least 200 times the structural relaxation time of the host is required to recover ensemble-averaged relaxation at every spatial region in the system.
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