Documento 5110332

MECHANICAL PROPERTIES OF SOME
BIVALVE SHELLS RELATED WITH THEIR
ENVIRONMENT
Por: Ío Almagro Padilla
Departamento de Estratigrafía y Paleontología (UGR)
Email: [email protected]
Tutores Antonio Checa González (Departamento de Estratigrafía y
Paleontología, UGR)
Ignacio Sainz Díaz (Instituto Andaluz de Ciencias de la Tierra,
CSIC-UGR)
Elizabeth Harper (Department of Earth Sciences, Cambridge
University, UK)
Tribunal Presidente: Juan Carlos Braga Alarcón (Departamento de
Estratigrafía y Paleontología, UGR)
Vocal: José Sandoval Gabarrón (Departamento de Estratigrafía y
Paleontología, UGR)
Secretario: Gonzalo Jiménez Moreno (Departamento de
Estratigrafía y Paleontología, UGR)
Fecha, Hora y 24 de Septiembre de 2012 a las 9:30 h
Lugar Aula E-2, Facultad de Ciencias
Abstract
Shells are biocomposites formed with a mineral part and an organic matrix organized in
layers with different microstructure. It exists a high variability in morphological and
microstructure combinations in shells, and some different properties between them are
tested here with a new methodology, called Resonant Ultrasound Spectroscopy, that has
never been used in biomaterials before. Some inelastic and elastic constants are
estimated using computational software and also the organic shell content is determined
by Thermogravimetric analysis using, for first time, super fresh material, i e, recent
collected alive. According to these aims we used specimens of Mytilus edulis, Ruditapes
philippinarum, Unio tumidus and Unio pictorum and we found differences in all
parameters measured between them.
Brief curriculum
Ío Almagro got the biology degree in Madrid (Universidad Autónoma de
Madrid) in 2009 within the specialty “Biodiversity and Evolution Biology”.
In 2010 she got a master degree in Conservation Biology and Conservation Genetics
by Universidad Complutense de Madrid. Her studies that time were focused in
invertebrates taxonomy with emphasis in planarian diversity and genetic
characterization of the family Planariidae (Tricladida, Platyhelminthes) in populations
of the Central System of Spain through the cytochrome c oxidase subunit I gene
sequence.
Nowadays she is a PhD student in Granada University under the supervision of Antonio
Checa and Ignacio Sainz.
Her thesis title is: “Biomineralization in invertebrates, with emphasis in molluscs.
Microstructure genesis, organization and evolution”.
Her main research interest is related to Evolution Biology and Environmental
Conservation.