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. 2018 Mar 19;11(3):448. doi: 10.3390/ma11030448

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© 2018 by the author.

Licensee MDPI, Basel, Switzerland. This article is an open access article distributed under the terms and conditions of the Creative Commons Attribution (CC BY) license (http://creativecommons.org/licenses/by/4.0/).

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Piezoelectric immunosensors for the determination of an antigen (red ball) and increase of oscillations by application of a nanoparticle (yellow ball) covered with immunoglobulins (Y shaped). Blue disc represents a piezoelectric crystal.