Sub-10 nm Fe3O4@Cu2-xS core-shell nanoparticles for dual-modal imaging and photothermal therapy
KAUST DepartmentAdvanced Membranes and Porous Materials Research Center
Biological and Environmental Sciences and Engineering (BESE) Division
Physical Sciences and Engineering (PSE) Division
Chemical Science Program
Nanostructured Functional Materials (NFM) laboratory
MetadataShow full item record
AbstractPhotothermal nanomaterials have recently attracted significant research interest due to their potential applications in biological imaging and therapeutics. However, the development of small-sized photothermal nanomaterials with high thermal stability remains a formidable challenge. Here, we report the rational design and synthesis of ultrasmall (<10 nm) Fe3O 4@Cu2-xS core-shell nanoparticles, which offer both high photothermal stability and superparamagnetic properties. Specifically, these core-shell nanoparticles have proven effective as probes for T 2-weighted magnetic resonance imaging and infrared thermal imaging because of their strong absorption at the near-infrared region centered around 960 nm. Importantly, the photothermal effect of the nanoparticles can be precisely controlled by varying the Cu content in the core-shell structure. Furthermore, we demonstrate in vitro and in vivo photothermal ablation of cancer cells using these multifunctional nanoparticles. The results should provide improved understanding of synergistic effect resulting from the integration of magnetism with photothermal phenomenon, important for developing multimode nanoparticle probes for biomedical applications. © 2013 American Chemical Society.
SponsorsThis work was partially supported by the National Natural Science Foundation of China (grant nos. 21171035, 50872020, 20971086), Key Grant Project of Chinese Ministry of Education (grant no. 313015), the Science and Technology Commission of Shanghai-based "Innovation Action Plan" Project (grant no. 10JC1400100), and PhD Programs Foundation of Ministry of Education of China (grant no. 20110075110008). X.L. acknowledges the support by the National University of Singapore (R-143-000-427), the Singapore Ministry of Education (R-143-000-453), the Singapore-MIT Alliance, and the Agency for Science, Technology, and Research (R-143-000-366). Y.H. acknowledges the support by the King Abdullah University of Science and Technology for the baseline research funds.
PublisherAmerican Chemical Society (ACS)
- A core/satellite multifunctional nanotheranostic for in vivo imaging and tumor eradication by radiation/photothermal synergistic therapy.
- Authors: Xiao Q, Zheng X, Bu W, Ge W, Zhang S, Chen F, Xing H, Ren Q, Fan W, Zhao K, Hua Y, Shi J
- Issue date: 2013 Sep 4
- Cooperative organization in iron oxide multi-core nanoparticles potentiates their efficiency as heating mediators and MRI contrast agents.
- Authors: Lartigue L, Hugounenq P, Alloyeau D, Clarke SP, Lévy M, Bacri JC, Bazzi R, Brougham DF, Wilhelm C, Gazeau F
- Issue date: 2012 Dec 21
- Hyaluronic acid-modified Fe3O4@Au core/shell nanostars for multimodal imaging and photothermal therapy of tumors.
- Authors: Li J, Hu Y, Yang J, Wei P, Sun W, Shen M, Zhang G, Shi X
- Issue date: 2015 Jan
- Multifunctional polypyrrole@Fe(3)O(4) nanoparticles for dual-modal imaging and in vivo photothermal cancer therapy.
- Authors: Tian Q, Wang Q, Yao KX, Teng B, Zhang J, Yang S, Han Y
- Issue date: 2014 Mar 26
- Gadolinium-chelate functionalized copper sulphide as a nanotheranostic agent for MR imaging and photothermal destruction of cancer cells.
- Authors: Zhang S, Zha Z, Yue X, Liang X, Dai Z
- Issue date: 2013 Aug 4