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Synthesis of xerogels and sol gels. Both xerogels and sol-gels are nanomaterials that may function as NO-releasing coatings for implanted materials when NO donors are conjugated to the gel. This figure is a reproduction of an original image by Claudionico, which is licensed under a Creative Commons Attribution 3.0 Unported License (https://creativecommons.org/licenses/by-sa/3.0/legalcode); https://commons.wikimedia.org/wiki/File:Sol-Gel_Technology_Scheme.png.
