A composition for facilitating delivery of biological agents, comprising a therapeutic or diagnostic agent and a supramolecular complex, the latter comprising a block copolymer, having at least one nonionic, water soluble segment and at least one polyionic segment, and at least one charged surfactant having hydrophobic groups. In accordance with the concepts and technologies disclosed herein, user devices can obtain drawing data generated by a web-based drawing application and can display a drawing by rendering the data in one or more UIs. The tricyclic nucleosides are expected to be useful for enhancing properties of oligomeric compounds including for example binding affinity and nuclease resistance.