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US 7,597,959 B2Granted
Core-shell fluorescent nanoparticles
AssigneeBridgestone Corporation
InventorsXiaorong Wang, Christine Rademacher
Life of this patent
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Abstract
A fluorescent nanoparticle includes a core comprising an alkenylbenzene; an intermediate layer, an outer shell layer, and a fluorescent portion. The fluorescent portion includes a structure represented by the following formula: wherein L is a direct bond or a linker group, and F is any fluorescent moiety. The fluorescent portion is located in at least one of the following locations: the core, the intermediate layer, or the shell layer of the nanoparticle. Methods for making the fluorescent nanoparticle are also described.
Claims24
A fluorescent nanoparticle comprising:
- (a) a core comprising at least one alkenylbenzene monomer;
- (b) an intermediate layer comprising polymer chains;
- (c) a shell layer comprising an outer surface of the nanoparticle;
- and
- (d) at least one fluorescent portion bonded to the nanoparticle;
- the fluorescent portion arising from the addition of a corresponding monomer with a structure represented by the following formula:
- wherein L is a direct bond or a linker group, and F is any fluorescent moiety;
- wherein the fluorescent portion is a monomer-contributed unit located in at least one of the following locations:
- the core, the intermediate layer, or the shell layer of the nanoparticle.
6 more elements
A fluorescent nanoparticle comprising:
- a core, an intermediate layer, and a shell layer;
- the intermediate and shell layers include polymer chains extending from the intermediate layer into the shell layer, the shell being the outermost layer of the nanoparticle;
- the core including alkenylbenzene monomers, the alkenylbenzene monomers having the same structure or being a mixture of two or more different structures;
- the alkenylbenzene monomers crosslinking living polymer chain ends of the polymer chains of the intermediate layer;
- a fluorescent portion bonded to at least one of the intermediate or shell layers, or the core;
- the fluorescent portion including at least one fluorescent monomer-contributed unit with a structure represented by the following formula:
- wherein L is a direct bond or a linker group, and F is a fluorescent moiety.
4 more elements
Dependencies are inferred from the claim text.