ENCAPSULATED DYE COATED NOBLE METAL NANOPARTICLES WITH INCREASED SURFACE ENHANCED RAMAN SCATTERING PROPERTIES AS CONTRAST AGENTS
申请人:Zamecnik, Colin R.
公开号:EP2932243A1
公开(公告)日:2015-10-21
[EN] ENCAPSULATED DYE COATED NOBLE METAL NANOPARTICLES WITH INCREASED SURFACE ENHANCED RAMAN SCATTERING PROPERTIES AS CONTRAST AGENTS<br/>[FR] NANOPARTICULES DE MÉTAL NOBLE ENROBÉES DE COLORANT ET ENCAPSULÉES DOTÉES DE PROPRIÉTÉS AMÉLIORÉES DE DIFFUSION RAMAN EXALTÉE DE SURFACE, UTILISÉES COMME AGENTS DE CONTRASTE
申请人:ZAMECNIK COLIN R
公开号:WO2014089698A1
公开(公告)日:2014-06-19
The present disclosure provides semiconductor-metal composite nanoparticles with optical properties that are superior to those of pure materials for use as contrast agents. The composites include noble metal nanoparticles having a layer of linker molecules being bound to the surface of the noble metal nanoparticle and a layer of dye molecules bound to the layer of linker molecules. The dye molecules are selected such that they form an ordered structure that exhibits a collective absorption band shift, compared to the individual dye molecule, when bound to the noble metal nanoparticle. This structure is encapsulated in a stabilizing coating layer forming a multi-shell structure with properties suitable for biosensing and other detection applications which exhibit enhanced Raman scattering compared to nanoparticles having dye molecules bound thereto not in the ordered structure.