Affinity Based Laccase Immobilization on Modified Magnetic Nanoparticles: Biosensing Platform for the Monitoring of Phenolic Compounds


BABADOSTU A., GULDU O. K. , Demirkol D. , MEDİNE E. İ. , ÜNAK P. , TİMUR S.

INTERNATIONAL JOURNAL OF POLYMERIC MATERIALS AND POLYMERIC BIOMATERIALS, cilt.64, ss.260-266, 2015 (SCI İndekslerine Giren Dergi) identifier identifier

  • Cilt numarası: 64 Konu: 5
  • Basım Tarihi: 2015
  • Doi Numarası: 10.1080/00914037.2014.936598
  • Dergi Adı: INTERNATIONAL JOURNAL OF POLYMERIC MATERIALS AND POLYMERIC BIOMATERIALS
  • Sayfa Sayıları: ss.260-266

Özet

The authors report an electrochemical phenol biosensor based on the immobilization of laccase (Lac) on the surface of copper capped magnetic core-shell (Fe3O4-SiO2) nanoparticles (MNPs). After synthesis, MNP surfaces were functionalized by silanization and then, modified with histidine (His) and copper, respectively. The performance of the MNP-His/Cu/Lac biosensor has been investigated at -0.05V versus Ag/AgCl. The proposed biosensor allowed to detect catechol and phenol in the range of 0.01-0.4mM and 0.025-0.2mM, respectively. Finally, phenol analysis in culture medium of P. putida adapted to phenol was successfully demonstrated with appreciable recovery values.