Double-stranded helical crystals with high axial ratio are prepared from a cholic acid ester. Two processes are involved in the formation of the micrometer-scale self-assembled crystals: 1) the self-assembly of the cholic acid ester to form a hydrogel (the formation of gel fibers); 2) the winding of the gel fibers (laser confocal scanning micrographs show, top: left-handed; bottom: right-handed).
If you can't find a tool you're looking for, please click the link at the top of the page to "Go to old article view". Alternatively, view our Knowledge Base articles for additional help. Your feedback is important to us, so please let us know if you have comments or ideas for improvement.