When does near-wall hindered diffusion influence mass transport towards targets?
The diffusion of a particle is slowed as it moves close to a surface. We identify the conditions under which this hindered diffusion is significant and show that is strongly dependant on the sizes of both the particle and the target. We focus particularly on the transport of nano-particles to a vari...
| Главные авторы: | , , |
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| Формат: | Journal article |
| Язык: | English |
| Опубликовано: |
Royal Society of Chemistry
2016
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| _version_ | 1826289686951231488 |
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| author | Eloul, S Kätelhön, E Compton, R |
| author_facet | Eloul, S Kätelhön, E Compton, R |
| author_sort | Eloul, S |
| collection | OXFORD |
| description | The diffusion of a particle is slowed as it moves close to a surface. We identify the conditions under which this hindered diffusion is significant and show that is strongly dependant on the sizes of both the particle and the target. We focus particularly on the transport of nano-particles to a variety of targets including a planar surface, a sphere, a disc and a wire, and provide data which allows the frequency of impacts to be inferred for a variety of experimental conditions. Equations are given to estimate the particle fluxes and we explain literature observations reported on the detected frequency of impacts. Finally we observe a drastic effect on the calculation of the mean first passage time of a single particle impacting a sub-micron sized target, showing the importance of this effect in biological systems. |
| first_indexed | 2024-03-07T02:32:41Z |
| format | Journal article |
| id | oxford-uuid:a7c587d3-b44c-4cfd-8ab7-6d9a5e0a46b3 |
| institution | University of Oxford |
| language | English |
| last_indexed | 2024-03-07T02:32:41Z |
| publishDate | 2016 |
| publisher | Royal Society of Chemistry |
| record_format | dspace |
| spelling | oxford-uuid:a7c587d3-b44c-4cfd-8ab7-6d9a5e0a46b32022-03-27T02:56:46ZWhen does near-wall hindered diffusion influence mass transport towards targets?Journal articlehttp://purl.org/coar/resource_type/c_dcae04bcuuid:a7c587d3-b44c-4cfd-8ab7-6d9a5e0a46b3EnglishSymplectic Elements at OxfordRoyal Society of Chemistry2016Eloul, SKätelhön, ECompton, RThe diffusion of a particle is slowed as it moves close to a surface. We identify the conditions under which this hindered diffusion is significant and show that is strongly dependant on the sizes of both the particle and the target. We focus particularly on the transport of nano-particles to a variety of targets including a planar surface, a sphere, a disc and a wire, and provide data which allows the frequency of impacts to be inferred for a variety of experimental conditions. Equations are given to estimate the particle fluxes and we explain literature observations reported on the detected frequency of impacts. Finally we observe a drastic effect on the calculation of the mean first passage time of a single particle impacting a sub-micron sized target, showing the importance of this effect in biological systems. |
| spellingShingle | Eloul, S Kätelhön, E Compton, R When does near-wall hindered diffusion influence mass transport towards targets? |
| title | When does near-wall hindered diffusion influence mass transport towards targets? |
| title_full | When does near-wall hindered diffusion influence mass transport towards targets? |
| title_fullStr | When does near-wall hindered diffusion influence mass transport towards targets? |
| title_full_unstemmed | When does near-wall hindered diffusion influence mass transport towards targets? |
| title_short | When does near-wall hindered diffusion influence mass transport towards targets? |
| title_sort | when does near wall hindered diffusion influence mass transport towards targets |
| work_keys_str_mv | AT elouls whendoesnearwallhindereddiffusioninfluencemasstransporttowardstargets AT katelhone whendoesnearwallhindereddiffusioninfluencemasstransporttowardstargets AT comptonr whendoesnearwallhindereddiffusioninfluencemasstransporttowardstargets |