Nanoparticle redistribution during magnetic nanoparticle hyperthermia: Multi-physics porous medium model analyses

Anilchandra Attaluri, Robert Ivkov, Ronghui Ma, Liang Zhu

Research output: Chapter in Book/Report/Conference proceedingConference contribution

Abstract

A coupled theoretical framework comprising a suspension of nanoparticles transport in porous media model and a heat transfer model is developed to address nanoparticle redistribution during heating. Nanoparticle redistribution in biological tissues during magnetic nanoparticle hyperthermia is described by a multi-physics model that consists of five major components: (a) a fully saturated porous media model for fluid flow through tissue; (b) nanoparticle convection and diffusion; (c) heat transfer model based on heat generation by local nanoparticle concentration; (d) a model to predict tissue thermal damage and corresponding change to the porous structure; and (e) a nanoparticle redistribution model based on the dynamic porosity and diffusion diffusivity. The integrated model has been used to predict the structural damage in porous tumors and its effect on nanoparticle-induced heating in tumors. Thermal damage in the vicinity of the tumor center that is predicted by the Arrhenius equation increases from 14% with 10 minutes of heating to almost 99% after 20 minutes. It then induces an increased tumor porosity that increases nanoparticle diffusivity by seven-fold. The model predicts thermal damage induced by nanoparticle redistribution increases by 20% in the radius of the spherical tissue region containing nanoparticles. The developed model has demonstrated the feasibility of enhancing nanoparticle dispersion from injection sites using targeted thermal damage.

Original languageEnglish (US)
Title of host publicationASME International Mechanical Engineering Congress and Exposition, Proceedings (IMECE)
Pages1391-1395
Number of pages5
Volume7
EditionPARTS A, B, C, D
DOIs
StatePublished - 2012
EventASME 2012 International Mechanical Engineering Congress and Exposition, IMECE 2012 - Houston, TX, United States
Duration: Nov 9 2012Nov 15 2012

Other

OtherASME 2012 International Mechanical Engineering Congress and Exposition, IMECE 2012
CountryUnited States
CityHouston, TX
Period11/9/1211/15/12

Fingerprint

Porous materials
Physics
Nanoparticles
Tumors
Tissue
Heating
Porosity
Heat transfer
Heat generation
Flow of fluids
Hot Temperature

ASJC Scopus subject areas

  • Mechanical Engineering

Cite this

Attaluri, A., Ivkov, R., Ma, R., & Zhu, L. (2012). Nanoparticle redistribution during magnetic nanoparticle hyperthermia: Multi-physics porous medium model analyses. In ASME International Mechanical Engineering Congress and Exposition, Proceedings (IMECE) (PARTS A, B, C, D ed., Vol. 7, pp. 1391-1395) https://doi.org/10.1115/IMECE2012-89486

Nanoparticle redistribution during magnetic nanoparticle hyperthermia : Multi-physics porous medium model analyses. / Attaluri, Anilchandra; Ivkov, Robert; Ma, Ronghui; Zhu, Liang.

ASME International Mechanical Engineering Congress and Exposition, Proceedings (IMECE). Vol. 7 PARTS A, B, C, D. ed. 2012. p. 1391-1395.

Research output: Chapter in Book/Report/Conference proceedingConference contribution

Attaluri, A, Ivkov, R, Ma, R & Zhu, L 2012, Nanoparticle redistribution during magnetic nanoparticle hyperthermia: Multi-physics porous medium model analyses. in ASME International Mechanical Engineering Congress and Exposition, Proceedings (IMECE). PARTS A, B, C, D edn, vol. 7, pp. 1391-1395, ASME 2012 International Mechanical Engineering Congress and Exposition, IMECE 2012, Houston, TX, United States, 11/9/12. https://doi.org/10.1115/IMECE2012-89486
Attaluri A, Ivkov R, Ma R, Zhu L. Nanoparticle redistribution during magnetic nanoparticle hyperthermia: Multi-physics porous medium model analyses. In ASME International Mechanical Engineering Congress and Exposition, Proceedings (IMECE). PARTS A, B, C, D ed. Vol. 7. 2012. p. 1391-1395 https://doi.org/10.1115/IMECE2012-89486
Attaluri, Anilchandra ; Ivkov, Robert ; Ma, Ronghui ; Zhu, Liang. / Nanoparticle redistribution during magnetic nanoparticle hyperthermia : Multi-physics porous medium model analyses. ASME International Mechanical Engineering Congress and Exposition, Proceedings (IMECE). Vol. 7 PARTS A, B, C, D. ed. 2012. pp. 1391-1395
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