Dendrimers and other dendritic macromolecules: From building blocks to functional assemblies in nanoscience and nanotechnology

Given their size, in the single-digit nanometer range, and the versatility of their function- ality, dendrimers and other dendritic macromolecules are poised to make a significant contribution to the rap- idly expanding fields of nanoscience and nanotechnology. This highlight focuses on nascent applications of dendrimers that take advantage of their structural features and polyva- lent character. In particular, the con- cept of dendritic encapsulation of function, borrowed from Nature, can be applied to the design of a varied array of energy-harvesting, light- emitting, or catalytic macromole- cules. Similarly, the compact size and hierarchical ordering of compo- nents within dendrimers make them ideal for exploring the limits of nanolithography. Finally, the pres- ence of differentiated functionalities and the polyvalent character of den-

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