Probing Non-Gaussianity in Confined Diffusion of Nanoparticles Article Swipe
Chun‐Dong Xue
,
Xu Zheng
,
Kaikai Chen
,
Yu Tian
,
Guoqing Hu
·
YOU?
·
· 2016
· Open Access
·
· DOI: https://doi.org/10.1021/acs.jpclett.5b02624
YOU?
·
· 2016
· Open Access
·
· DOI: https://doi.org/10.1021/acs.jpclett.5b02624
Confined diffusion is ubiquitous in nature. Ever since the "anomalous yet Brownian" motion was observed, the non-Gaussianity in confined diffusion has been unveiled as an important issue. In this Letter, we experimentally investigate the characteristics and source of non-Gaussian behavior in confined diffusion of nanoparticles suspended in polymer solutions. A time-varied and size-dependent non-Gaussianity is reported based on the non-Gaussian parameter and displacement probability distribution, especially when the nanoparticle's size is smaller than the typical polymer mesh size. This non-Gaussianity does not vanish even at the long-time Brownian stage. By inspecting the displacement autocorrelation, we observe that the nanoparticle-structure interaction, indicated by the anticorrelation, is limited in the short-time stage and makes little contribution to the non-Gaussianity in the long-time stage. The main source of the non-Gaussianity can therefore be attributed to hopping diffusion that results in an exponential probability distribution with the large displacements, which may also explain certain processes dominated by rare events in the biological environment.
Related Topics
Concepts
Non-Gaussianity
Brownian motion
Statistical physics
Diffusion
Autocorrelation
Gaussian
Anomalous diffusion
Displacement (psychology)
Exponential function
Brownian dynamics
Nanoparticle
Physics
Statistics
Mathematics
Computer science
Optics
Quantum mechanics
Mathematical analysis
Innovation diffusion
Cosmic microwave background
Knowledge management
Psychotherapist
Anisotropy
Psychology
Metadata
- Type
- article
- Language
- en
- Landing Page
- https://doi.org/10.1021/acs.jpclett.5b02624
- OA Status
- green
- Cited By
- 101
- References
- 49
- Related Works
- 10
- OpenAlex ID
- https://openalex.org/W2307959270
All OpenAlex metadata
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https://openalex.org/W2307959270Canonical identifier for this work in OpenAlex
- DOI
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https://doi.org/10.1021/acs.jpclett.5b02624Digital Object Identifier
- Title
-
Probing Non-Gaussianity in Confined Diffusion of NanoparticlesWork title
- Type
-
articleOpenAlex work type
- Language
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enPrimary language
- Publication year
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2016Year of publication
- Publication date
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2016-01-19Full publication date if available
- Authors
-
Chun‐Dong Xue, Xu Zheng, Kaikai Chen, Yu Tian, Guoqing HuList of authors in order
- Landing page
-
https://doi.org/10.1021/acs.jpclett.5b02624Publisher landing page
- Open access
-
YesWhether a free full text is available
- OA status
-
greenOpen access status per OpenAlex
- OA URL
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https://dspace.imech.ac.cn/handle/311007/58672Direct OA link when available
- Concepts
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Non-Gaussianity, Brownian motion, Statistical physics, Diffusion, Autocorrelation, Gaussian, Anomalous diffusion, Displacement (psychology), Exponential function, Brownian dynamics, Nanoparticle, Physics, Statistics, Mathematics, Computer science, Optics, Quantum mechanics, Mathematical analysis, Innovation diffusion, Cosmic microwave background, Knowledge management, Psychotherapist, Anisotropy, PsychologyTop concepts (fields/topics) attached by OpenAlex
- Cited by
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101Total citation count in OpenAlex
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2025: 8, 2024: 10, 2023: 8, 2022: 11, 2021: 8Per-year citation counts (last 5 years)
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- Related works (count)
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10Other works algorithmically related by OpenAlex
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