Electrospraying of ferritin solutions for the production of monodisperse iron oxide nanoparticles

David Gonzalez, Albert G. Nasibulin, Hua Jiang, Paula Queipo, Esko I. Kauppinen

Research output: Contribution to journalArticleScientificpeer-review

6 Citations (Scopus)

Abstract

Iron oxide nanoparticles with uniform size and narrow size distribution were synthesized by electrospraying of ferritin and subsequent heat treatment at 800°, 850°, and 900°C. Solutions of ferritin in both water and water/iso-propanol mixture (50:50) were electrosprayed in diverse gaseous environments. Narrow mobility size distributions with a mean mobility diameter of 4.5 nm and a geometric standard deviation < 1.2 were obtained at 800°C. The process of aerosol formation involved the thermal oxidation of the ferritin organic shell. The utilization of a water/iso-propanol (50:50) ferritin solution led to the establishment of a more stable electrospray, and, consequently, an increase in the total particle concentration was observed. Furthermore, carbon-coated magnetite (Fe 3 O 4) particles were generated when CO was used as carrier gas.
Original languageEnglish
Pages (from-to)901-912
JournalChemical Engineering Communications
Volume194
Issue number7
DOIs
Publication statusPublished - 2007
MoE publication typeA1 Journal article-refereed

Fingerprint

Ferritins
Iron oxides
Propanol
Nanoparticles
1-Propanol
Water
Magnetite
Ferrosoferric Oxide
Aerosols
Carbon Monoxide
Heat treatment
Oxidation
Carbon
Gases
ferric oxide

Keywords

  • electrospray
  • ferritin
  • iron oxide nanoparticles
  • nanoparticles
  • aerosols

Cite this

Gonzalez, David ; Nasibulin, Albert G. ; Jiang, Hua ; Queipo, Paula ; Kauppinen, Esko I. / Electrospraying of ferritin solutions for the production of monodisperse iron oxide nanoparticles. In: Chemical Engineering Communications. 2007 ; Vol. 194, No. 7. pp. 901-912.
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Electrospraying of ferritin solutions for the production of monodisperse iron oxide nanoparticles. / Gonzalez, David; Nasibulin, Albert G.; Jiang, Hua; Queipo, Paula; Kauppinen, Esko I.

In: Chemical Engineering Communications, Vol. 194, No. 7, 2007, p. 901-912.

Research output: Contribution to journalArticleScientificpeer-review

TY - JOUR

T1 - Electrospraying of ferritin solutions for the production of monodisperse iron oxide nanoparticles

AU - Gonzalez, David

AU - Nasibulin, Albert G.

AU - Jiang, Hua

AU - Queipo, Paula

AU - Kauppinen, Esko I.

PY - 2007

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AB - Iron oxide nanoparticles with uniform size and narrow size distribution were synthesized by electrospraying of ferritin and subsequent heat treatment at 800°, 850°, and 900°C. Solutions of ferritin in both water and water/iso-propanol mixture (50:50) were electrosprayed in diverse gaseous environments. Narrow mobility size distributions with a mean mobility diameter of 4.5 nm and a geometric standard deviation < 1.2 were obtained at 800°C. The process of aerosol formation involved the thermal oxidation of the ferritin organic shell. The utilization of a water/iso-propanol (50:50) ferritin solution led to the establishment of a more stable electrospray, and, consequently, an increase in the total particle concentration was observed. Furthermore, carbon-coated magnetite (Fe 3 O 4) particles were generated when CO was used as carrier gas.

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KW - iron oxide nanoparticles

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KW - aerosols

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