Preparation of DNA biosensor application from fuel oil waste by functionalization and characterization of MWCNT

2Citations
Citations of this article
17Readers
Mendeley users who have this article in their library.

Abstract

The potential of using a multi-wall carbon nanotube (MWCNT) synthesized from a fuel oil waste of power plants has discovered for the first time for DNA biosensors application. The MWCNT surface morphologies were examined by field emission scanning electron microscopy (FE-SEM) and atomic force microscopy (AFM). The thickness of the MWCNT was found 203 nm and confirmed by FESEM. The electrochemical DNA biosensor was successfully developed using a MWCNT modified on SiO2 thin films. The capacitance measurements were performed to detect the sensitivity of DNA detection. The change in capacitance before and after immobilization of the DNA was measured in the frequency range of 1 Hz to 1 MHz. The results indicate that bare device exhibited the lowest capacitance value, which was 32.7 μF. The capacitance value of the DNA immobilization increase to 52 μF. The permittivity and conductivity also were examined to study the effect of the DNA immobilization toward the MWCNT modified surface. This present demonstrated that the MWCNT modified SiO2 a thin film was successfully fabricated for DNA biosensor detection.

Cite

CITATION STYLE

APA

Mohammed, A. M., Al-Khateeb, I. K., Haider, A. J., Rahim, R. A., & Hashim, U. (2017). Preparation of DNA biosensor application from fuel oil waste by functionalization and characterization of MWCNT. Sensing and Bio-Sensing Research, 16, 1–5. https://doi.org/10.1016/j.sbsr.2017.09.002

Register to see more suggestions

Mendeley helps you to discover research relevant for your work.

Already have an account?

Save time finding and organizing research with Mendeley

Sign up for free