Biomimetic Control of Size in the Polyamine-Directed Formation of Silica Nanospheres

摘要

The intricate silicified cell walls of diatoms are probably the most outstanding examples of nanoscale-structured materials in nature.~[1]The degree of complexity in these hierarchically organized biominerals has never been matched in artificial materials.~[2]Nanofabrication of silica in diatoms occurs under ambient conditions at slightly acidic pH values and results from specific interactions between biomoleculs and siicic acid derivatives.