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(Reference retrieved automatically from Web of Science through information on FAPESP grant and its corresponding number as mentioned in the publication by the authors.)

Asymptotic analysis of drug dissolution in two layers having widely differing diffusivities

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Vynnycky, Michael [1, 2] ; Mckee, Sean [3] ; Meere, Martin [4] ; McCormick, Christopher [5] ; McGinty, Sean [6]
Total Authors: 5
[1] Univ Sao Paulo Sao Carlos, Dept Appl Math & Stat, Inst Math & Comp Sci, POB 668, BR-13560970 Sao Carlos, SP - Brazil
[2] KTH Royal Inst Technol, Div Proc, Dept Mat Sci & Technol, Brinellvagen 23, S-10044 Stockholm - Sweden
[3] Univ Strathclyde, Dept Math & Stat, Livingstone Tower, 26 Richmond St, Glasgow G12 8QQ, Lanark - Scotland
[4] NUI Galway, Dept Appl Math, Galway H91 TK33 - Ireland
[5] Univ Strathclyde, Dept Biomed Engn, Glasgow G4 0NW, Lanark - Scotland
[6] Univ Glasgow, Div Biomed Engn, Glasgow G12 8QQ, Lanark - Scotland
Total Affiliations: 6
Document type: Journal article
Source: IMA JOURNAL OF APPLIED MATHEMATICS; v. 84, n. 3, p. 533-554, JUN 2019.
Web of Science Citations: 0

This paper is concerned with a diffusion-controlled moving boundary problem in drug dissolution, in which the moving front passes from one medium to another for which the diffusivity is many orders of magnitude smaller. The classical Neumann similarity solution holds while the front is passing through the first layer, but this breaks down in the second layer. Asymptotic methods are used to understand what is happening in the second layer. Although this necessitates numerical computation, one interesting outcome is that only one calculation is required, no matter what the diffusivity is for the second layer. (AU)

FAPESP's process: 18/07643-8 - Industrial mathematics and practical asymptotics
Grantee:José Alberto Cuminato
Support type: Research Grants - Visiting Researcher Grant - International