journal article·2022-01-01Open access

Facile construction of fluorescent traceable prodrug nanosponges for tumor intracellular pH/hypoxia dual-triggered drug delivery

Wei Chen, Pengwei Xie, Mingliang Pei, Guoping Li, Zhiyuan Wang, Peng Liu

Abstract

Drug delivery systems (DDSs) have become hotpot in tumor chemotherapy to improve anti-tumor efficacy. It is still a challenge to control the diameter and distribution of the drug carriers. High performance reactions are expected to favor the precise design of the polymer structure, as well as the final crosslinked nanoparticles. Here, a facile approach was established to prepare the fluorescent traceable prodrug nanosponges for tumor intracellular pH/hypoxia dual-triggered drug delivery, via a high-performance reaction of isocyanate groups with fluorescent carbon quantum dots (CQD) as building block. The proposed doxorubicin (DOX) conjugated CQD-based nanosponges (DOX-Hy-CQD(ssPEGss)n) possessed excellent acid/GSH dual-triggered drug release, due to the dual-triggered disintegration inside tumor cells. As a result, the conjugated drug was released with an enhanced selective inhibition tumor cell proliferation than the free DOX. Furthermore, the fluorescence of the disintegrated CQD-contained small species might enable the real-time in-site imaging during drug release.
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Research context

OpenAlex topics: Carbon and Quantum Dots Applications · Nanoplatforms for cancer theranostics · Nanocluster Synthesis and Applications

SciVX discovery tags are terminology-based. OpenAlex topics are source-provided classifications.

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