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Triple-responsive expansile nanogel for tumor and mitochondria targeted photosensitizer delivery.


ABSTRACT: A pH, thermal, and redox potential triple-responsive expansile nanogel system (TRN), which swells at acidic pH, temperature higher than its transition temperature, and reducing environment, has been developed. TRN quickly expands from 108 nm to over 1200 nm (in diameter), achieving more than 1000-fold size enlargement (in volume), within 2 h in a reducing environment at body temperature. Sigma-2 receptor targeting-ligand functionalized TRN can effectively target head and neck tumor, and help Pc 4 targeting mitochondria inside cancer cells to achieve enhanced photodynamic therapy efficacy.

SUBMITTER: He H 

PROVIDER: S-EPMC4157076 | biostudies-literature | 2014 Nov

REPOSITORIES: biostudies-literature

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Triple-responsive expansile nanogel for tumor and mitochondria targeted photosensitizer delivery.

He Huacheng H   Cattran Alexander W AW   Nguyen Tu T   Nieminen Anna-Liisa AL   Xu Peisheng P  

Biomaterials 20140822 35


A pH, thermal, and redox potential triple-responsive expansile nanogel system (TRN), which swells at acidic pH, temperature higher than its transition temperature, and reducing environment, has been developed. TRN quickly expands from 108 nm to over 1200 nm (in diameter), achieving more than 1000-fold size enlargement (in volume), within 2 h in a reducing environment at body temperature. Sigma-2 receptor targeting-ligand functionalized TRN can effectively target head and neck tumor, and help Pc  ...[more]

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