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. 2018 Sep 6;9:3614. doi: 10.1038/s41467-018-05560-3

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© The Author(s) 2018

Open Access This article is licensed under a Creative Commons Attribution 4.0 International License, which permits use, sharing, adaptation, distribution and reproduction in any medium or format, as long as you give appropriate credit to the original author(s) and the source, provide a link to the Creative Commons license, and indicate if changes were made. The images or other third party material in this article are included in the article’s Creative Commons license, unless indicated otherwise in a credit line to the material. If material is not included in the article’s Creative Commons license and your intended use is not permitted by statutory regulation or exceeds the permitted use, you will need to obtain permission directly from the copyright holder. To view a copy of this license, visit http://creativecommons.org/licenses/by/4.0/.

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Fig. 6 — Reflectivity properties of raspberry-particle ink. a Cartoon illustrating how raspberry colloidal dispersions (3 w%) can be used as ink on a coverslip and a corresponding sample photographed in reflection at a specific angle. b Microscopic image taken in reflective mode of a dried film made of raspberries and the corresponding reflectivity curve (inset). c SEM image of self-assembled raspberry particles on a glass substrate