1. Nacreous aspiration ended up as a unstoppable flaw.

2. The structure and toughened mechanisms of nacreous layer were introduced to design the laminated composites.

3. The preparing condition of TiO 2 mica nacreous pigments with Fe 2 O 3 was studied.

4. Nacreous clouds - also known as polar stratospheric clouds - contribute to the formation of the polar ozone holes.

5. Microstructured biomaterials such as nacreous layer from mollusk shells receive much attention at present.