Adsorption myoglobin over mesoporous silica molecular sieves: Pore size effect and pore-filling model

Miyahara, Masahiko, Vinu, Ajayan and Ariga, Katsuhiko (2007) Adsorption myoglobin over mesoporous silica molecular sieves: Pore size effect and pore-filling model. Materials Science and Engineering C, 27 2: 232-236.


Author Miyahara, Masahiko
Vinu, Ajayan
Ariga, Katsuhiko
Title Adsorption myoglobin over mesoporous silica molecular sieves: Pore size effect and pore-filling model
Journal name Materials Science and Engineering C   Check publisher's open access policy
ISSN 0928-4931
1873-0191
Publication date 2007-03
Sub-type Article (original research)
DOI 10.1016/j.msec.2006.05.012
Volume 27
Issue 2
Start page 232
End page 236
Total pages 5
Editor Swee-Hin Teoh
Khiam-Aik Khor
Seeram Ramakrishna
Place of publication Lausanne, Switzerland
Publisher Elsevier
Language eng
Abstract The present work describes the adsorption of myoglobin over mesoporous materials with different pore diameters (SBA-15 and MCM-41) from buffered solutions. The Langmuir-type adsorption of myoglobin occurs with monolayer coverage on the inner surface of the mesoporous channels. These adsorbents were thoroughly characterized by X-ray diffraction, nitrogen adsorption/desorption and FT-IR spectroscopy before and after the myoglobin adsorption. The amount of myoglobin adsorbed significantly depends on the specific pore volume and/or the pore diameter of the mesoporous silica adsorbents. These experimental results were analyzed using pore-filling models, suggesting that myoglobin molecules are well-packed in the SBA-15 pores. FT-IR spectra before and after the adsorption confirm the structural stability of the adsorbed myoglobin.
Keyword Mesoporous silica
SBA-15
MCM-41
Myoglobin
Q-Index Code C1
Q-Index Status Provisional Code
Institutional Status Non-UQ
Additional Notes Special edition - Symposium A: Advanced Biomaterials International Conference on Materials for Advanced Technologies (ICMAT 2005)

Document type: Journal Article
Sub-type: Article (original research)
Collection: Australian Institute for Bioengineering and Nanotechnology Publications
 
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