FRET: A tool to study the interaction between apatite and collagen?

Santos, Isabelle Dos; Mazères, Serge; Frèche, M.; Lacout, J.L.; Sautereau, Anne-Marie

doi:10.1016/j.matlet.2008.07.035

Cited by 7 publications

(2 citation statements)

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“…7 F 1 and 5 D 0 ! 7 F 2 , respectively, [19] despite an excitation in the exclusive collagen domain. These findings thus tend to show that, for a precipitation in the presence of collagen, the Eu 3þ ions incorporated in the apatite structure were successively subjected to excitation and de-excitation (emitting the observed photons), and this phenomenon would then be characteristic of a FRET signal between the collagen donor and the Eu 3þ accepting ions.…”

Section: Eu 3r -Doped Luminescent Apatites For Exploring Interfaces Omentioning

confidence: 93%

Medical Potentialities of Biomimetic Apatites through Adsorption, Ionic Substitution, and Mineral/Organic Associations: Three Illustrative Examples

et al. 2010

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Biomimetic calcium phosphate apatites are particularly adapted to bio‐medical applications due to their biocompatibility and high surface reactivity. In this contribution we report three selected examples dealing with mineral/organic interactions devoted to convey new functionalities to apatite materials, either in the form of dry bioceramics or of aqueous colloids. We first studied the adsorption of risedronate (bisphosphonate) molecules, which present potential therapeutic properties for the treatment of osteoporosis. We then addressed the preparation of luminescent Eu‐doped apatites for exploring apatite/collagen interfaces through the FRET technique, in view of preparing “advanced” biocomposites exhibiting close spatial interaction between apatite crystals and collagen fibers. Finally, we showed the possibility to obtain nanometer‐scaled apatite‐based colloids, with particle size tailorable in the range 30–100 nm by controlling the agglomeration state of apatite nanocrystals by way of surface functionalization with a phospholipid moiety. This paper is aimed at illustrating some of the numerous potentialities of calcium phosphate apatites in the bio‐medical field, allowing one to foresee perspectives lying well beyond bone‐related applications.

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Section: Eu 3r -Doped Luminescent Apatites For Exploring Interfaces Omentioning

confidence: 93%

Medical Potentialities of Biomimetic Apatites through Adsorption, Ionic Substitution, and Mineral/Organic Associations: Three Illustrative Examples

et al. 2010

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“…Essa transferência ocorre via interação não radiativa do tipo dipolo-dipolo. Quando ocorre FRET a emissão do doador diminui e a emissão do aceitador aumenta(98,99). Análise do SHG O colágeno é uma proteína de importância fundamental na constituição da matriz extracelular do tecido conjuntivo, sendo responsável por grande parte de suas propriedades físicas.…”

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Estudo e caracterização de marcadores ópticos para a aterosclerose

Sicchieri¹

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Aos meus colegas de salinha, Tânia, Camila, Lucas, Caetano, Danilo, Débora, Cris, vocês deixavam minhas tardes bem mais felizes. Aos meus amigos de faculdade Fernanda Cavalcante (Fee) e Tiago José Arruda (eterno Turco) que estiveram do meu lado durante todos esses anos.iii Ao IPEN, aos pesquisadores do Centro de Lasers de Aplicações por contribuírem de alguma maneira nas várias etapas desse trabalho.Aos demais funcionários e técnicos do CLA, em especial ao Sr. Luiz Rosa que estava sempre disposto a ajudar e sempre de bom humor.Ao Biotério do IPEN e seus funcionários pelos serviços prestados.

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