Event Details

CATEGORY:Theor./Math. Physics Seminar
TITLE:Biologically Controlled Assembly of Mother-of-Pearl
Date: 2013-05-19
Time: 14:30:00
Location: Lewiner, Seminar Room (412)

Abstract:Nacre, or mother-of-pearl, is a layered biomineral composite. It is widely studied because of its self-assembled, efficient and accurately ordered architecture, its toughness, and its fascinating and poorly understood formation mechanisms.

The aragonite crystal tablets in nacre orient so that their c-axes are aligned perpendicular to the layers. Our data, obtained a novel experimental technique, support a new theoretical model in which the orientational ordering is established dynamically, and the organism's control of tablet orientation occurs via regulation of the kinetics of crystal nucleation and growth.