Organische Nanoröhren durch Selbstorganisation

Protein-Inspired Materials: Synthetic Concepts and Potential Applications

“…[14] The TASP concept focuses on bypassing the protein folding problem by ligating secondary structural elements onto regioselectively addressable topological templates in a predetermined packing arrangement. Examples include cyclic peptides, which can self-assemble into nanotubes, [15] and linear oligopeptides that form fibrillar b-sheet structures. [14] Figure 1.…”

Preparation and Structures of Cyclic Tetrathiadienes and Tetrathiaenynes

“…Moore et al used macrocyclic rigid rings as building blocks, [3] hydrogen bonds between phenolic OH groups and π-π stacking of aromatic rings being used to stack the rings on top of one another. Ghadiri's approach [4] used flat cyclic peptides built from an even number of -and -amino acids. The cycles associate in stacks in an antiparallel fashion through the formation of hydrogen bonds between neighboring rings within one column.…”

Markov-type Evolution of Materials into a Polar State

“…[12a,b] Examples of type 1 (lattices providing channels) show similarity to a diffusion process of molecules across pores of natural or artificial membranes. [18] However, a most recent case of polarity inversion, found (molecular dynamics simulations) for the average dipolar moment of water passing along the pore of aquoporines (AQP1, GlpF), [19] occurs as a result of interactions to binding sites at the wall, rather than by the water-to-water interaction along the water chain seen across the pore. Another case of great importance in biology are microtubules in neuronal and other cells: microtubules in the axon of neurons show a high degree of polar order; this gates the direction of flow of material across the neuron.…”