Plasmonic nanoprobes on single AuNTs for evaluating and monitoring the dynamic release of 2D drug carriers

Literature Information

Publication Date 2023-11-20
DOI 10.1039/D3TB02255B
Impact Factor 6.331
Authors

Zejie Yu, Yi Wang, Miaomiao Cai, Jiachang Chen, Qirong Zou, Quli Fan, Lei Zhang


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Abstract

The use of nanomaterials in drug delivery has gained significant attention in recent years. In this project, we developed a novel localized surface plasmon resonance (LSPR) nanoprobe on single gold triangular nanoplates (AuNTs) for dynamic monitoring of the drug carrier release process. Graphene, as the drug carrier, could be immobilized on the AuNT surface through the π–π* stacking effect. Upon loading or releasing the model drug (doxorubicin, DOX), subtle changes in the local microenvironment's dielectric constant around the AuNTs induced notable red-shifts or blue-shifts in the LSPR scattering spectra of single AuNTs. Furthermore, the spectral shifts led to a continuous enhancement in the red channel of the dark field microscopy (DFM) images during the drug release process in vitro, demonstrating that the drug release system is not susceptible to potential confounding factors. These release kinetics results under different conditions could be well-fitted using the Higuchi desorption model, further proving that this nanoprobe could be employed for evaluating the controlled release ability of 2D nanocarriers. These findings are expected to inspire new ideas and technologies in the preparation of more effective drug carriers, making a significant contribution to the development of drug delivery nanosystems and nanomedicine.

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Journal of Materials Chemistry B

Journal of Materials Chemistry B
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