Tyrosinase biosensor based on multiwall carbon nanotubes - titanium oxide nanocomposite for catechol determination
Fathy, SA; Abdel Hamid, Fatma; El Nemr, A; El-Maghraby, A; Serag, E;
Abstract
© 2018 Desalination Publications. All rights reserved. Multiwall carbon nanotubes-titanium oxide nanocomposite (MWCNTs-TiO2 ) was formed and used as a conductive material for modification of graphite electrode and tyrosinase immobilization. This nanocomposite showed good conductivity, and biocompatibility with the enzyme. Under optimum conditions, the current response was linear to catechol concentration from 0.2 to 2.7 mM with a sensitivity of 85.79 mA/M and a low detection limit of 0.014 µM, the proposed electrode shows good reproducibility and long-term stability till 25 d. The prepared biosensor was successfully used to measure the catechol in different water samples, with excellent results compared with the spectrophotometric method, at 95% confidence level.
Other data
Title | Tyrosinase biosensor based on multiwall carbon nanotubes - titanium oxide nanocomposite for catechol determination | Authors | Fathy, SA ; Abdel Hamid, Fatma ; El Nemr, A ; El-Maghraby, A ; Serag, E | Issue Date | 2018 | Publisher | DESALINATION PUBL | Journal | DESALINATION AND WATER TREATMENT | DOI | 98 108 https://api.elsevier.com/content/abstract/scopus_id/85056238893 130 10.5004/dwt.2018.22847 |
Scopus ID | 2-s2.0-85056238893 | Web of science ID | WOS:000448676000010 |
Recommend this item
Similar Items from Core Recommender Database
Items in Ain Shams Scholar are protected by copyright, with all rights reserved, unless otherwise indicated.