Preliminary Characterization of Organic Nucleator and Framework Macromolecules in Mollusc Shells

1993 ◽  
Vol 330 ◽  
Author(s):  
Richard Humbert ◽  
M. Sarikayat ◽  
I. A. Aksay ◽  
J. W. Crabb ◽  
C. E. Furlong
Keyword(s):  
Amino Acid ◽  
Calcium Carbonate ◽  
Organic Material ◽  
Organic Matrix ◽  
Shell Formation ◽  
Haliotis Rufescens ◽  
Nautilus Pompilius ◽  
Red Abalone ◽  
20 Nm

ABSTRACTThe nacreous (mother-of-pearl) sections of molluscan shells are natural laminates of aragonitic calcium carbonate platelets and an organic matrix. The multi-edged platelets are sub-micrometer thick and surrounded on all sides by 10–20 nm-thick organic matrix that contains several proteins and polysaccharides. Our goal is to identify the components and structure of the organic matrix and determine their function in shell formation and organization. We have extracted organic material from red abalone-Haliotis rufescens, and chambered nautilus-Nautilus pompilius. From the soluble portion, we have partially purified two proteins and determined their amino acid compositions.

Characterization of the growth-related transcriptome in California red abalone (Haliotis rufescens) through RNA-Seq analysis

2015 ◽  
Vol 24 ◽  
pp. 199-202 ◽  
Author(s):  
Diego Valenzuela-Miranda ◽  
Miguel A. Del Río-Portilla ◽  
Cristian Gallardo-Escárate
Keyword(s):  
Rna Seq ◽  
Haliotis Rufescens ◽  
Red Abalone

Cloning and molecular characterization of two ferritins from red abalone Haliotis rufescens and their expressions in response to bacterial challenge at juvenile and adult life stages

2018 ◽  
Vol 82 ◽  
pp. 279-285 ◽  
Author(s):  
Teodoro Coba de la Peña ◽  
Claudia B. Cárcamo ◽  
María I. Díaz ◽  
Federico M. Winkler ◽  
Byron Morales-Lange ◽  
...  
Keyword(s):  
Molecular Characterization ◽  
Adult Life ◽  
Life Stages ◽  
Bacterial Challenge ◽  
Haliotis Rufescens ◽  
Red Abalone

Platelet interlocks are the key to toughness and strength in nacre

2005 ◽  
Vol 20 (5) ◽  
pp. 1097-1100 ◽  
Author(s):  
Kalpana S. Katti ◽  
Dinesh R. Katti ◽  
Shashindra M. Pradhan ◽  
Arundhati Bhosle
Keyword(s):  
Finite Element ◽  
Calcium Carbonate ◽  
Finite Element Modeling ◽  
Organic Material ◽  
Three Dimensional ◽  
Weight Percent ◽  
High Toughness ◽  
Red Abalone ◽  
Dimensional Finite Element ◽  
Three Dimensional Finite Element

Nacre, the inner layer of mollusk shells is a composite made of platelets of mineral aragonitic calcium carbonate with a few weight percent organic material sandwiched in between. The organic and nanostructural nuances are often suggested to be the reason for the extreme toughness of nacre. Here we report the presence of interlocks between platelets of nacre from red abalone. We also report and show, using three-dimensional finite element modeling, that interlocks are the key mechanism for the high toughness and strength of nacre. The observed rotation between platelet layers, which were earlier reported as defects of structure, are necessary for the formation of interlocks.

Characterization of organic matrix components of pearl oyster, Pinctada fucata and their implications in shell formation

2008 ◽  
Vol 2 (2) ◽  
pp. 156-161 ◽  
Author(s):  
Chihiro Nogawa ◽  
Mami Obara ◽  
Megumi Ozawa ◽  
Aya Sato ◽  
Akiko Watanabe ◽  
...  
Keyword(s):  
Organic Matrix ◽  
Pearl Oyster ◽  
Pinctada Fucata ◽  
Shell Formation ◽  
Matrix Components

Isolation and Characterization of an Actin Promoter from the Red Abalone (Haliotis rufescens)

1999 ◽  
Vol 1 (3) ◽  
pp. 269-278 ◽  
Author(s):  
Marta Gómez-Chiarri ◽  
Vicky L. Kirby ◽  
Dennis A. Powers
Keyword(s):  
Haliotis Rufescens ◽  
Isolation And Characterization ◽  
Red Abalone ◽  
Actin Promoter
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