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Enhancement of electro-chemical properties of TiO2 nanotubes for biological interfacing
journal contribution
posted on 2017-08-01, 00:00 authored by Dhurgham Ismael Khudhair, H Amani Hamedani, Julie Gaburro, Sajjad Shafei, Saeid Nahavandi, H Garmestani, Asim BhattiAsim BhattiMicro/nano electrodes employing nanotubes has attracted paramount attention in recent years due to their inherent superior mechanical and structural properties. Electrical interfaces with different geometries and sizes have been developed as electrodes for measuring action potentials and investigating neural information processing in neural networks. In this work, we investigated the possibility of using TiO2 nanotube arrays that were grown using electrochemical anodization technique, as a micro/nano electrode for neural interfacing. The morphology of fabricated nanotube arrays were found to be signifcantly affected by the applied voltage. Annealing and doping of TiO2 nanotube arrays has been
performed to improve the structural and electrical properties of the nanotube arrays. It was found that the annealing and doping with nitrogen improve the electrical conductivity of the nanotube arrays. Moreover, the tube diameter and length can be controlled by changing the applied voltage and that can significantly affect the biocompatibility of the nanotube arrays. It was observed that nitrogen doped nanotubes with morphology consisting of 61 nm diameter, 25nm wall thickness and tube length of 2.25 µm could be good candidate to be used as electrodes for biological interfacing. This is due to the fact that the nitrogen doped nanotubes with aforementioned morphology possess great properties
necessary for effective biological interfacing such as low impedance, high
capacitance and good biocompatibility.
performed to improve the structural and electrical properties of the nanotube arrays. It was found that the annealing and doping with nitrogen improve the electrical conductivity of the nanotube arrays. Moreover, the tube diameter and length can be controlled by changing the applied voltage and that can significantly affect the biocompatibility of the nanotube arrays. It was observed that nitrogen doped nanotubes with morphology consisting of 61 nm diameter, 25nm wall thickness and tube length of 2.25 µm could be good candidate to be used as electrodes for biological interfacing. This is due to the fact that the nitrogen doped nanotubes with aforementioned morphology possess great properties
necessary for effective biological interfacing such as low impedance, high
capacitance and good biocompatibility.
History
Journal
Materials science and engineering: cVolume
77Pagination
111 - 120Publisher
ElsevierLocation
Amsterdam, The NetherlandsPublisher DOI
ISSN
0928-4931Language
engPublication classification
C1 Refereed article in a scholarly journalCopyright notice
2017, ElsevierUsage metrics
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