Protein-Stabilized Gadolinium Oxide-Gold Nanoclusters Hybrid for Multimodal Imaging and Drug Delivery.

Author(s) Han, L.; Xia, J.M.; Hai, X.; Shu, Y.; Chen, X.W.; Wang, J.H.
Journal ACS Appl Mater Interfaces
Date Published 2017 Feb 08

A protein-stabilized multifunctional theranostic nanoplatform, gadolinium oxide-gold nanoclusters hybrid (Gd2O3-AuNCs), is constructed for multimodal imaging and drug delivery. The Gd2O3-AuNCs nanohybrid is developed by integrating Gd2O3 nanocrystals and gold nanoclusters into bovine serum albumin scaffold as a stabilizer. The nanohybrid exhibits favorable biocompatibility and is capable of enhancing the contrast in magnetic resonance (MR) and X-ray computed tomography (CT) imaging. Meanwhile, the integrated AuNCs component not only endows the nanohybrid to produce red fluorescence, but also sensitizes the generation of singlet oxygen upon near-infrared laser stimulation at 808 nm. Bovine serum albumin surrounding the nanoparticles makes Gd2O3-AuNCs a brilliant carrier for the delivery of indocyanine green (ICG). ICG loading endows the Gd2O3-AuNCs-ICG nanocomposite with a near-infrared fluorescence imaging capability, and improves its photodynamic property and photothermal capability. Ultimately, further experiments have demonstrated that Gd2O3-AuNCs-ICG nanocomposite is a promising theranostic agent for image guided cancer therapy.

DOI 10.1021/acsami.7b00246
ISSN 1944-8252
Citation ACS Appl Mater Interfaces. 2017.

Related Applications, Forms & Industries