Transition from fractional to classical Stokes–Einstein behaviour in simple fluids
An optical technique for tracking single particles has been used to evaluate the particle diameter at which diffusion transitions from molecular behaviour described by the fractional Stokes–Einstein relationship to particle behaviour described by the classical Stokes–Einstein relationship. The resul...
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The Royal Society
2017-01-01
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| Series: | Royal Society Open Science |
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| Online Access: | https://royalsocietypublishing.org/doi/pdf/10.1098/rsos.170507 |
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doaj-994cb9b595db4290abf4ba4423e1f27e2020-11-25T04:02:08ZengThe Royal SocietyRoyal Society Open Science2054-57032017-01-0141210.1098/rsos.170507170507Transition from fractional to classical Stokes–Einstein behaviour in simple fluidsDiego CoglitoreStuart P. EdwardsonPeter MackoEann A. PattersonMaurice WhelanAn optical technique for tracking single particles has been used to evaluate the particle diameter at which diffusion transitions from molecular behaviour described by the fractional Stokes–Einstein relationship to particle behaviour described by the classical Stokes–Einstein relationship. The results confirm a prior prediction from molecular dynamic simulations that there is a particle size at which transition occurs and show it is inversely dependent on concentration and viscosity but independent of particle density. For concentrations in the range 5 × 10−3 to 5 × 10−6 mg ml−1 and viscosities from 0.8 to 150 mPa s, the transition was found to occur in the diameter range 150–300 nm.https://royalsocietypublishing.org/doi/pdf/10.1098/rsos.170507diffusionstokes–einstein diffusionfractional stokes–einstein equationsingle nanoparticle trackingnanoparticles |
| collection |
DOAJ |
| language |
English |
| format |
Article |
| sources |
DOAJ |
| author |
Diego Coglitore Stuart P. Edwardson Peter Macko Eann A. Patterson Maurice Whelan |
| spellingShingle |
Diego Coglitore Stuart P. Edwardson Peter Macko Eann A. Patterson Maurice Whelan Transition from fractional to classical Stokes–Einstein behaviour in simple fluids Royal Society Open Science diffusion stokes–einstein diffusion fractional stokes–einstein equation single nanoparticle tracking nanoparticles |
| author_facet |
Diego Coglitore Stuart P. Edwardson Peter Macko Eann A. Patterson Maurice Whelan |
| author_sort |
Diego Coglitore |
| title |
Transition from fractional to classical Stokes–Einstein behaviour in simple fluids |
| title_short |
Transition from fractional to classical Stokes–Einstein behaviour in simple fluids |
| title_full |
Transition from fractional to classical Stokes–Einstein behaviour in simple fluids |
| title_fullStr |
Transition from fractional to classical Stokes–Einstein behaviour in simple fluids |
| title_full_unstemmed |
Transition from fractional to classical Stokes–Einstein behaviour in simple fluids |
| title_sort |
transition from fractional to classical stokes–einstein behaviour in simple fluids |
| publisher |
The Royal Society |
| series |
Royal Society Open Science |
| issn |
2054-5703 |
| publishDate |
2017-01-01 |
| description |
An optical technique for tracking single particles has been used to evaluate the particle diameter at which diffusion transitions from molecular behaviour described by the fractional Stokes–Einstein relationship to particle behaviour described by the classical Stokes–Einstein relationship. The results confirm a prior prediction from molecular dynamic simulations that there is a particle size at which transition occurs and show it is inversely dependent on concentration and viscosity but independent of particle density. For concentrations in the range 5 × 10−3 to 5 × 10−6 mg ml−1 and viscosities from 0.8 to 150 mPa s, the transition was found to occur in the diameter range 150–300 nm. |
| topic |
diffusion stokes–einstein diffusion fractional stokes–einstein equation single nanoparticle tracking nanoparticles |
| url |
https://royalsocietypublishing.org/doi/pdf/10.1098/rsos.170507 |
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