![Hydrazide-Based Quadruply Hydrogen-Bonded Heterodimers. Structure, Assembling Selectivity, and Supramolecular Substitution | Journal of the American Chemical Society Hydrazide-Based Quadruply Hydrogen-Bonded Heterodimers. Structure, Assembling Selectivity, and Supramolecular Substitution | Journal of the American Chemical Society](https://pubs.acs.org/cms/10.1021/ja037312x/asset/images/large/ja037312xn00001.jpeg)
Hydrazide-Based Quadruply Hydrogen-Bonded Heterodimers. Structure, Assembling Selectivity, and Supramolecular Substitution | Journal of the American Chemical Society
![A double nuclei Bovine Pulmonary Artery Endothelial (BPAE) cell | 2022 Photomicrography Competition | Nikon's Small World A double nuclei Bovine Pulmonary Artery Endothelial (BPAE) cell | 2022 Photomicrography Competition | Nikon's Small World](https://www.nikonsmallworld.com/images/photos/2022/_photo1600/TZ-02.jpg)
A double nuclei Bovine Pulmonary Artery Endothelial (BPAE) cell | 2022 Photomicrography Competition | Nikon's Small World
![51H+x1lsnlL._CLa|1516,1257|51Ue0HieJLL.jpg,51niybFEsGL.jpg|0,0,689,1257+827,0,689,1257+344,0,827,1257_._SY200_.jpg 51H+x1lsnlL._CLa|1516,1257|51Ue0HieJLL.jpg,51niybFEsGL.jpg|0,0,689,1257+827,0,689,1257+344,0,827,1257_._SY200_.jpg](https://m.media-amazon.com/images/W/IMAGERENDERING_521856-T1/images/I/51H+x1lsnlL._CLa%7C1516,1257%7C51Ue0HieJLL.jpg,51niybFEsGL.jpg%7C0,0,689,1257+827,0,689,1257+344,0,827,1257_._SY200_.jpg)
51H+x1lsnlL._CLa|1516,1257|51Ue0HieJLL.jpg,51niybFEsGL.jpg|0,0,689,1257+827,0,689,1257+344,0,827,1257_._SY200_.jpg
![Intestinal villi (brush border in magenta) | 2022 Photomicrography Competition | Nikon's Small World Intestinal villi (brush border in magenta) | 2022 Photomicrography Competition | Nikon's Small World](https://www.nikonsmallworld.com/images/photos/2022/_photo1600/22Apr29-Image-1-Filter.jpg)
Intestinal villi (brush border in magenta) | 2022 Photomicrography Competition | Nikon's Small World
![Artery of an Atlantic salmon filled with nucleated red blood cells | 2022 Photomicrography Competition | Nikon's Small World Artery of an Atlantic salmon filled with nucleated red blood cells | 2022 Photomicrography Competition | Nikon's Small World](https://www.nikonsmallworld.com/images/photos/2022/_photo1600/000000-sandworm_2022-04-29T15-34-06.808.jpg)