alexa Triply triggered doxorubicin release from supramolecular nanocontainers.
Biomedical Sciences

Biomedical Sciences

Journal of Biomedical Engineering and Medical Devices

Author(s): Loh XJ, del Barrio J, Toh PP, Lee TC, Jiao D,

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Abstract The synthesis of a supramolecular double hydrophilic block copolymer (DHBC) held together by cucurbit[8]uril (CB[8]) ternary complexation and its subsequent self-assembly into micelles is described. This system is responsive to multiple external triggers including temperature, pH and the addition of a competitive guest. The supramolecular block copolymer assembly consists of poly(N-isopropylacrylamide) (PNIPAAm) as a thermoresponsive block and poly(dimethylaminoethylmethacrylate) (PDMAEMA) as a pH-responsive block. Moreover, encapsulation and controlled drug release was demonstrated with this system using the chemotherapeutic drug doxorubicin (DOX). This triple stimuli-responsive DHBC micelle system represents an evolution over conventional double stimuli-responsive covalent diblock copolymer systems and displayed a significant reduction in the viability of HeLa cells upon triggered release of DOX from the supramolecular micellar nanocontainers. This article was published in Biomacromolecules and referenced in Journal of Biomedical Engineering and Medical Devices

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