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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/).
(a) Low magnification and (b) high magnification TEM micrographs of ZnO@CA nanoparticles. The interlayer distance of the lattice fringe is estimated to be ≈2.63 Å, which is comparable to those of the (002) planes in the typical wurtzite structure of ZnO.