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. 2019 Jul 30;12(15):2429. doi: 10.3390/ma12152429

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© 2019 by the authors.

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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Nano-morphology (2D images on the left and 3D reconstructions on the right) of the disk surface at different production step: (a) after etching and silanization (NaOH + VapAPTES), (b) after etching, silanization and sericin bioconjugation with glutaraldehyde (NaOH + VapAPTES + GLU), (c) after etching, silanization and sericin bioconjugation with EDC/NHS (NaOH + VapAPTES + NDC/NHS). Atomic force microscopy, semi-contact mode.