This BioCoach module is designed to help you review cell structure. You will find information about the structure of prokaryotic cells and the structure of eukaryotic cells, with a focus on the latter. Animations and interactive activities will enrich your review experience in a dynamic way. This module is designed to be a supplement to, but not a replacement for, your textbook and classroom notes. You can test your understanding of morphology and function of the key structural components described by using the Self-Quiz at the end of the module.
Potential application as long-lasting dyes is based on the enhanced stability of the inner portion of the dumbbell-shaped molecule.   Studies with cyclodextrin -protected rotaxane azo dyes established this characteristic. More reactive squaraine dyes have also been shown to have enhanced stability by preventing nucleophilic attack of the inner squaraine moiety .  The enhanced stability of rotaxane dyes is attributed to the insulating effect of the macrocycle , which is able to block interactions with other molecules.