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Investigating the Effects of Electrical Stimulation Via Gold Nanoparticles on in Vitro Neurite Outgrowth: Perspective to Nerve Regeneration Publisher



Adel M1, 2, 3 ; Zahmatkeshan M1, 4 ; Johari B5 ; Kharrazi S1 ; Mehdizadeh M6 ; Bolouri B1, 7 ; Rezayat SM1
Authors
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Authors Affiliations
  1. 1. Department of Medical Nanotechnology, School of Advanced Technologies in Medicine, Tehran University of Medical Sciences, Tehran, Iran
  2. 2. Deputy of Research and Technology, School of Medicine, Iran University of Medical Sciences, Tehran, Iran
  3. 3. Department of Medical Nanotechnology, School of Advanced Medical Sciences, Tabriz University of Medical Sciences, Tabriz, Iran
  4. 4. Neuroscience Research Center (NRC), Iran University of Medical Sciences, Tehran, Iran
  5. 5. Department of Medical Biotechnology, School of Allied Medicine, Tehran University of Medical Sciences, Tehran, Iran
  6. 6. Cellular and Molecular Research Center, School of Advanced Technologies in Medicine, Department of Anatomical Sciences, Iran University of Medical Sciences, Tehran, Iran
  7. 7. Department of Medical Physics, School of Medicine, Iran University of Medical Sciences, Tehran, Iran

Source: Microelectronic Engineering Published:2017


Abstract

Neural tissue engineering research field has been progressed by using different approaches especially for repairing of damaged neural cells. In addition, it is known that electrical stimulation can be used for neurite growth and nerve regeneration. In this study conductive properties of gold nanoparticles (GNPs, 39 nm) and their contribution to the enhancement of electrical stimulation to nerve cells have been conducted. In experimental section, polyethyleneimine (PEI) polymer coated cover glasses was used to create a positively charged glass surface and adsorption of GNPs was used in conjugation with this polymer coated substrate. Subsequently, PC12 cells were cultured on the modified glass surface and pulsed electric field of 1.5 V, 20 Hz was applied as electrical stimulation for 55 min duration. Images from FESEM showed a uniform distribution of GNPs on glasses surface. In addition, enhanced neurite outgrowth (120 μm) using electrical stimulation was determined by inverted phase contrast microscopy images. Altogether, synergist combination of GNPs together with pulsed electrical stimulation can be used for enhanced nerve regeneration. © 2017 Elsevier B.V.