Journal article

Cellular interfaces with hydrogen-bonded organic semiconductor hierarchical nanocrystals

Publication Details
Author(s): Sytnyk M, Jakesova M, Litvinukova M, Mashkov O, Kriegner D, Stangl J, Nebesarova J, Fecher FW, Schoefberger W, Sariciftci NS, Schindl R, Heiß W, Glowacki ED
Publication year: 2017
Volume: 8
ISSN: 2041-1723
Language: English


Successful formation of electronic interfaces between living cells and semiconductors hinges on being able to obtain an extremely close and high surface-area contact, which preserves both cell viability and semiconductor performance. To accomplish this, we introduce organic semiconductor assemblies consisting of a hierarchical arrangement of nanocrystals. These are synthesised via a colloidal chemical route that transforms the nontoxic commercial pigment quinacridone into various biomimetic three-dimensional arrangements of nanocrystals. Through a tuning of parameters such as precursor concentration, ligands and additives, we obtain complex size and shape control at room temperature. We elaborate hedgehog-shaped crystals comprising nanoscale needles or daggers that form intimate interfaces with the cell membrane, minimising the cleft with single cells without apparent detriment to viability. Excitation of such interfaces with light leads to effective cellular photostimulation. We find reversible light-induced conductance changes in ion-selective or temperature-gated channels.

How to cite
APA: Sytnyk, M., Jakesova, M., Litvinukova, M., Mashkov, O., Kriegner, D., Stangl, J.,... Glowacki, E.D. (2017). Cellular interfaces with hydrogen-bonded organic semiconductor hierarchical nanocrystals. Nature Communications, 8.

MLA: Sytnyk, Mykhailo, et al. "Cellular interfaces with hydrogen-bonded organic semiconductor hierarchical nanocrystals." Nature Communications 8 (2017).

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