Results 141 to 150 of about 5,074 (174)
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Non-nacreous Bead-cultured Pearls from Pinctada margaritifera
The Journal of GemmologyKomail Radhi +2 more
semanticscholar +2 more sources
Misorientation characteristics of interphase boundaries in Pinctada margaritifera shell
Materials Letters, 2019The research was co-financed by the European Union from resources of the European Social Fund (Project No.WND-POWR.03.02.00-00-I043/16), the statutory funds No. 11.11.130.375, Polish National Agency for Academic Exchange (grant no PPI/APM/2018/1/00049/U/001 ) and Spanish Ministerio de Ciencia e Innovación ( CGL2017-85118-P )
Martyna Strąg +7 more
openaire +2 more sources
Marine Pollution Bulletin
In French Polynesia, the pearl oyster Pinctada margaritifera has allowed black pearl production since four decades. The production remains dependent on spat collections in atoll lagoons.
Serge Andréfouët +11 more
semanticscholar +1 more source
In French Polynesia, the pearl oyster Pinctada margaritifera has allowed black pearl production since four decades. The production remains dependent on spat collections in atoll lagoons.
Serge Andréfouët +11 more
semanticscholar +1 more source
Marine Biotechnology, 2007
Shell nacre is laid upon an organic cell-free matrix, part of which, paradoxically, is water soluble and displays biological activities. Proteins in the native shell also constitute an insoluble network and offer a model for studying supramolecular organization as a means of self-ordering.
Bédouet, Laurent +10 more
openaire +3 more sources
Shell nacre is laid upon an organic cell-free matrix, part of which, paradoxically, is water soluble and displays biological activities. Proteins in the native shell also constitute an insoluble network and offer a model for studying supramolecular organization as a means of self-ordering.
Bédouet, Laurent +10 more
openaire +3 more sources
Two mesenchymal tumors in a pearl oyster, Pinctada margaritifera
Journal of Invertebrate Pathology, 1972Abstract Two mesenchymal polyps arising from the visceral mass in the gut loop area of Pinctada margaritifera had normal low columnar ciliated and pigmented epithelium and associated secretory cells. The stroma of both tumors was richly vascularized with well differentiated tissue of scattered muscle fibers in a collagenous matrix.
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Haemocyte persistence after grafting for pearl production in Pinctada margaritifera (Linnaeus, 1758)
Fish & Shellfish Immunology, 2015The grafting process used for pearl production in pearl oysters triggers a significant haemocyte response which has an influence on the quality of pearls formed. One hundred and ten selected healthy adult Pinctada margaritifera were grafted for pearl production. Beginning two days after grafting, oysters were sacrificed regularly until the 48th day and
Kishore, Pranesh, Southgate, Paul C
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In Vivo Study of Nacre Pinctada Margaritifera Behaviour in Subcutaneous Site in Rat
Key Engineering Materials, 2005The objective of this study was to assess the behaviour of nacre pinctada margaritifera (PM) in subcutaneous site in rat and to taste the influence of sterilization on nacre properties. PM discs or powder were sterilized at 120 degree celsius in one bar of pressure during 20 minutes or with gamma ray or in alcohol (70 %) .PM discs or powder were ...
Jean Christophe Fricain +3 more
openaire +1 more source
Comparative Biochemistry and Physiology Part B: Biochemistry and Molecular Biology, 2011
The nacre-prism transition of the mollusc shell Pinctada margaritifera was studied using scanning electron microscopy, electron probe micro-analysis (EPMA) and time-of-flight secondary ion mass spectrometry (TOF-SIMS). Mineralogical change is correlated with a change in organic matrix.
Farre, B. +5 more
openaire +3 more sources
The nacre-prism transition of the mollusc shell Pinctada margaritifera was studied using scanning electron microscopy, electron probe micro-analysis (EPMA) and time-of-flight secondary ion mass spectrometry (TOF-SIMS). Mineralogical change is correlated with a change in organic matrix.
Farre, B. +5 more
openaire +3 more sources