. 2021 Jul 14;24(1):208–215. doi: 10.1080/15685551.2021.1954340
© 2021 The Author(s). Published by Informa UK Limited, trading as Taylor & Francis Group.
This is an Open Access article distributed under the terms of the Creative Commons Attribution License (http://creativecommons.org/licenses/by/4.0/), which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited.
Figure 4.
SEM images of (a) GO, (b) HGMS, (c) GO-HGMS, and (d) local of GO-HGMS