biomineralization processes result in organic/inorganic hybrid materials with complex shape , hierarchical organization , and superior materials properties. chemistry , which is inspired by thes processes, aims to mimic biomineralization principles and to transfer them to the general controlof crystallization processes using an environmentally benign route . in this chapter , the latest advances in hydrophilic polymer - controlled morphosynthesis and bio-inspired mineralization of crystals are summarized with focus on the varios principles that can be used to generate inorganic and organic crystals with unusual structural specialty and complexity .