Nano-rods oxide materials for biosensor application. | ||
| Egyptian Journal of Biomedical Engineering and Biophysics | ||
| Article 1, Volume 19, Issue 1, 2018, Pages 45-50 PDF (2.72 M) | ||
| Document Type: Original Article | ||
| DOI: 10.21608/ejbbe.2018.4703.1021 | ||
| Authors | ||
| Hanan Abdelwahab* 1; Inas kamal Battisha2; Aziza Elseid3; Ayda Abd al kareem Salama4 | ||
| 1physics department- national research center, dokii- egypt | ||
| 2physics department- national research center | ||
| 3physics department- al- azhar university (girls)- faculty of science | ||
| 4Physics Dpt., faculty of science (girls), Al azhar University | ||
| Abstract | ||
| Iron ions selective biosensor (Fe3+) based on zinc oxide nano-rods thin film symbolic as ZnO-(NRs)TF will be developed and prepared. The potentiometric response for ZnO-(NRs)TF deposited on conducting plastic and silicon substrates as working electrode versus reference electrode (Ag/AgCl) was found to be linear against logarithmic FeCl3 with concentration range between 10-6 M and 10-2 M. The ZnO-(NRs)TF will be grown on conducting plastic and silicon substrates using two methods (Sol - Gel and aqueous chemical growth (ACG)) by seed layers and nano-rod growth will be investigated. For fabricate an advanced extracellular iron biosensor, the ZnO-(NRs) on plastic and silicon substrates were coated with a thin layer of specific ionophore membrane to be used for iron concentration measurements in extracellular solution. The prepared sample crystallinity and microstructure will be characterized by x-ray diffraction (XRD) which, imply that ZnO-(NRs)TF sample crystallite sizes are in the nano-scale. The prepared samples morphology was characterized by Field emission scanning electron microscope (FESEM). | ||
| Keywords | ||
| ZnO-(NRs)TF; Sol gel; aqueous chemical growth; XRD; FESEM and biosensor | ||
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