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Characterization and optimization of mesoporous magnetic nanoparticles for immobilization and enhanced performance of porcine pancreatic lipase

Characterization and optimization of mesoporous magnetic nanoparticles for immobilization and... Abstract In this paper, Fe 3 O 4 nanoparticles coated with mesoporous silica were prepared successfully, noted as Fe 3 O 4 at the mobile composition of matter No. 41 (MCM-41). Also, Fe 3 O 4 at MCM-41 was grafted by both 3-aminopropyltriethoxysilane (APTS) and 3-chloropropyltriethoxysilane (CPS), noted as Fe 3 O 4 at MCM-41/APTS and Fe 3 O 4 at MCM-41/CPS. The compounds were characterized by X-ray powder diffraction, scanning electron microscopy, transmission electron microscopy, Fourier transform infrared spectroscopy, vibrating sample magnetometry, thermogravimetry and N 2 adsorption/desorption. Then, the enzyme, porcine pancreas lipase (PPL), was immobilized onto these modified nanoparticles by covalent attachment, physical adsorption and cross-linking, noted as Fe 3 O 4 at MCM-41/CPS-PPL, Fe 3 O 4 at MCM-41-PPL and Fe 3 O 4 at MCM-41/APTS-PPL, respectively. The results showed that Fe 3 O 4 at MCM-41/CPS was the best nanomaterial for PPL immobilization, exhibiting enhanced immobilization efficiency (maximum 96 %), maximum relative activity (up to 96 %), high stability and reusability (83 % 56 days and 86.7 % ten cycles). Additionally, it offered some other advantages, such as easy recycling and reuse, complying with the trend of green chemistry. Therefore, Fe 3 O 4 at MCM-41/CPS in combination with a relevant method can be proposed for commercial applications. http://www.deepdyve.com/assets/images/DeepDyve-Logo-lg.png Chemical Papers de Gruyter

Characterization and optimization of mesoporous magnetic nanoparticles for immobilization and enhanced performance of porcine pancreatic lipase

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References (75)

Publisher
de Gruyter
Copyright
Copyright © 2015 by the
ISSN
0366-6352
eISSN
1336-9075
DOI
10.1515/chempap-2015-0142
Publisher site
See Article on Publisher Site

Abstract

Abstract In this paper, Fe 3 O 4 nanoparticles coated with mesoporous silica were prepared successfully, noted as Fe 3 O 4 at the mobile composition of matter No. 41 (MCM-41). Also, Fe 3 O 4 at MCM-41 was grafted by both 3-aminopropyltriethoxysilane (APTS) and 3-chloropropyltriethoxysilane (CPS), noted as Fe 3 O 4 at MCM-41/APTS and Fe 3 O 4 at MCM-41/CPS. The compounds were characterized by X-ray powder diffraction, scanning electron microscopy, transmission electron microscopy, Fourier transform infrared spectroscopy, vibrating sample magnetometry, thermogravimetry and N 2 adsorption/desorption. Then, the enzyme, porcine pancreas lipase (PPL), was immobilized onto these modified nanoparticles by covalent attachment, physical adsorption and cross-linking, noted as Fe 3 O 4 at MCM-41/CPS-PPL, Fe 3 O 4 at MCM-41-PPL and Fe 3 O 4 at MCM-41/APTS-PPL, respectively. The results showed that Fe 3 O 4 at MCM-41/CPS was the best nanomaterial for PPL immobilization, exhibiting enhanced immobilization efficiency (maximum 96 %), maximum relative activity (up to 96 %), high stability and reusability (83 % 56 days and 86.7 % ten cycles). Additionally, it offered some other advantages, such as easy recycling and reuse, complying with the trend of green chemistry. Therefore, Fe 3 O 4 at MCM-41/CPS in combination with a relevant method can be proposed for commercial applications.

Journal

Chemical Papersde Gruyter

Published: Oct 1, 2015

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