Regensburg 2016 – wissenschaftliches Programm

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BP: Fachverband Biologische Physik

BP 44: Biotechnology & Bioengineering

BP 44.6: Vortrag

Mittwoch, 9. März 2016, 16:30–16:45, H45

Compact helical antenna for smart implant applications — •Dmitriy Karnaushenko, Daniil Karnaushenko, Denys Makarov, and Oliver G. Schmidt — Institute for Integrative Nanosciences, IFW Dresden, Helmholtzstraße 20, Dresden, 01069 Germany

Smart implants are envisioned to monitor bioprocesses in the human body. Hence, their compactness is highly desirable to minimize discomfort during and after the implantation. If the length of the device is about 5 mm and the diameter less than 0.5 mm, it can be implanted using standard medical syringes. In this spirit, electronic devices self-assembled into compact tubular architectures[1] possess the desired dimensions and reveal biosensory capabilities[2] or can be used as neuro-interfaces[3]. Integration of antennas into self-assembled devices will allow remote implant monitoring, drug release or stimulation of biological tissues. In this work, a self-assembled helical antenna operating in the ISM radio band is presented[4]. Our novel material platform permits fabrication of antennas with operation frequencies at 2.4 GHz with a total length of only 5.5 mm. To tune the resonance frequency, the helical antenna is encapsulated with a dielectric material. Moreover, the revealed communication between the helical antenna and a smartphone highlights the potential of this technology for medical applications. [1] O. G. Schmidt et al., Nature 2001, 410, 168. [2] C. S. Martinez-Cisneros et al., Nano Lett. 2014, 14, 2219. [3] D. Karnaushenko et al., Adv. Mater. 2015, DOI 10.1002/adma.201503696. [4] D. D. Karnaushenko et al., NPG Asia Mater. 2015, 7, e188.