Methods for fabricating and characterizing a new generation of biomimetic materials

• Published in: Materials Science & Engineering C 1999-05, Vol.7 (1), p.37-43
• Main Authors: Almqvist, Nils, Thomson, Neil H, Smith, Bettye L, Stucky, Galen D, Morse, Daniel E, Hansma, Paul K
• Format: Article
• Language: English
• Subjects: Biological and medical sciences; Biomimetics; Biomineralization; Fysik; Medical sciences; Orienting; Polyvinylacetate; Radiotherapy. Instrumental treatment. Physiotherapy. Reeducation. Rehabilitation, orthophony, crenotherapy. Diet therapy and various other treatments (general aspects); SEM; Talc; Technology. Biomaterials. Equipments. Material. Instrumentation; X-ray
• ISSN: 0928-4931; 1873-0191; 1873-0191
• DOI: 10.1016/S0928-4931(98)00072-1

Bringing together current ideas in the fields of biomineralization and composite laminate materials, we have attempted to fabricate model materials that mimic abalone nacre through the rapid assembly of inorganic tablets, such as talc. Several physical methods were tested to aid the orientation of the talc tablets in fluid suspensions with a low percentage, 10% by dry weight, of organic binding material. The orientation of talc tablets in the synthesized composites was characterized by X-ray diffraction and scanning electron microscopy. The modulus of rupture of the materials was measured in a three-point bending test. We demonstrate that the alignment of tablets increases by the use of physical methods and from chemical surface treatment. Important factors to consider in making materials that mimic abalone nacre are discussed. Important factors to consider in making materials that mimic abalone nacre are discussed.