Izvestiya of Saratov University.

Physics

ISSN 1817-3020 (Print)
ISSN 2542-193X (Online)


For citation:

Ermakov A. V., Lengert E. V., Saveleva M. S., Sukhorukov G. B. Electrically Induced Opening of Composite PLA/SWCNT Microchambers for Implantable Drug Depot Systems. Izvestiya of Sarat. Univ. Physics. , 2020, vol. 20, iss. 4, pp. 311-314. DOI: 10.18500/1817-3020-2020-20-4-311-314

This is an open access article distributed under the terms of Creative Commons Attribution 4.0 International License (CC-BY 4.0).
Published online: 
30.11.2020
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English
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53

Electrically Induced Opening of Composite PLA/SWCNT Microchambers for Implantable Drug Depot Systems

Autors: 
Ermakov Alexey Vadimovich, Saratov State University
Lengert Ekaterina Vladimirovna, Saratov State Medical University named after V. I. Razumovsky
Saveleva Mariia Sergeevna, Saratov State University
Sukhorukov Gleb Borisovich, Queen Mary University of London
Abstract: 

Time- and site-specific release of bioactive compounds mediated by microcontainers immobilized on a surface is of high importance in a variety of tasks related to biomedicine and functional coatings. In the present work, we investigate arrays of hollow microchambers formed by composite shells based on a polylactic acid matrix and single-walled carbon nanotubes filler with high responsiveness towards electric current stimuli. The monitoring of the morphology changes reveals significant damages to the shells of microchambers formed by conductive composite material. The voltage of 3 V is shown to be sufficient to induce thermal damages to the microchambers. This study demonstrates the in-principle possibility to realize the opening of polylactic acid-based microchambers by application of low-power currents. The developed system opens a promising avenue for implantable delivery routes in a number of areas related to smart coatings, time and site-specific release. We believe these results will find application in the development of new implantable drug depot systems in biomedicine and cosmetology.

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