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Dielectrophoretic trapping of selenium nanorods for use in device applications

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Abstract

Dielectrophoretic alignment of the Selenium (Se) nanorods is reported for electrical characterization and possible applications as micro/nano devices. Selenium nanorods were successfully synthesized using a reverse microemulsion process. The produced material was investigated structurally using X-ray diffraction and transmission electron microscope. Suspensions of the Se powder in the concentration of 0.1 (g/l) were prepared in pure ethanol. Interdigitated platinum electrodes were employed for manipulation of suspended materials in the fluid. When Se particles were exposed to the platinum electrodes in two frequencies of 10 and 100 kHz, dielectrophoretic force captured suspended particles onto the interdigitated micro-electrode array. The trapped Se nanorods were aligned along the electric field lines and bridged the electrode gaps. Dielectrophoretic entrapment of Se nanorods on microelectrode was also detected by impedance measurements. The device was characterized and can potentially be used as a nanodevice.

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Acknowledgments

The authors would like to thank to Tehran University of Medical Sciences, Iran for providing the financial supports by the Grant (code 89-01-87-10393).

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Authors and Affiliations

  1. School of Advanced Technologies in Medicine, Tehran University of Medical Sciences, No. 88, Italy Street, Qods Street, Keshawarz Boulevard, 1417755469, Tehran, Iran

    Seyed Reza Mahmoodi, Marzieh Bayati, Somayeh Hosseini Rad & Elham Kamali Heidari

  2. Department of Medicinal Chemistry, Faculty of Pharmacy and Pharmaceutical Sciences Research Center, Tehran University of Medical Sciences, Tehran, Iran

    Alireza Foroumadi

  3. Department of Pharmaceutics, School of Pharmacy, Tehran University of Medical Sciences, Tehran, Iran

    Kambiz Gilani

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  1. Seyed Reza Mahmoodi
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  2. Marzieh Bayati
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  3. Somayeh Hosseini Rad
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  4. Elham Kamali Heidari
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  5. Alireza Foroumadi
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Correspondence to Marzieh Bayati.

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Mahmoodi, S.R., Bayati, M., Rad, S.H. et al. Dielectrophoretic trapping of selenium nanorods for use in device applications. J Mater Sci: Mater Electron 24, 4554–4559 (2013). https://doi.org/10.1007/s10854-013-1441-6

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  • DOI: https://doi.org/10.1007/s10854-013-1441-6

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