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Journal of colloid and interface science v.512, 2018년, pp.404 - 410   SCI SCIE
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Layered double hydroxide nanoparticles: Impact on vascular cells, blood cells and the complement system

Gu, Zi (School of Chemical Engineering, Australian Centre for NanoMedicine (ACN), The University of New South Wales, Sydney, NSW 2052, Australia ) ; Yan, Shiyu (Australian Institute for Bioengineering and Nanotechnology, The University of Queensland, Brisbane, QLD 4072, Australia ) ; Cheong, Soshan (Electron Microscope Unit, The University of New South Wales, Sydney, NSW 2052, Australia ) ; Cao, Zhenbang (School of Chemical Engineering, Australian Centre for NanoMedicine (ACN), The University of New South Wales, Sydney, NSW 2052, Australia ) ; Zuo, Huali (Australian Institute for Bioengineering and Nanotechnology, The University of Queensland, Brisbane, QLD 4072, Australia ) ; Thomas, Anita C. (Bristol Heart Institute & Bristol CardioVascular, University of Bristol, Bristol BS2 8HW, United Kingdom ) ; Rolfe, Barbara E. (Australian Institute for Bioengineering and Nanotechnology, The University of Queensland, Brisbane, QLD 4072, Australia ) ; Xu, Zhi Ping (Australian Institute for Bioengineering and Nanotechnology, The University of Queensland, Brisbane, QLD 4072, Australia ) ;
  • 초록  

    Abstract The mounting interest in layered double hydroxide (LDH) nanoparticles as drug carriers and bio-imaging contrast agents makes biosafety evaluation of LDH essential. Considering the important role of blood circulation in bio-distribution of nanoparticles, the present work evaluated the impact of MgAl-LDHs on key components of the circulatory system, including vascular cells (vascular smooth muscle cells (SMCs) and endothelial cells (HUVECs)), red blood cells (RBCs), and complement activation. The results showed that LDH had no effects on SMCs and HUVECs at concentrations up to 500 and 10 μg/mL respectively, in terms of cell proliferation and viability. LDH (10 μg/mL) did not change either the migration distance or the number of migrating SMCs in culture. Moreover, LDH (400 μg/mL) had a negligible effect on RBCs’ lysis, and there was no significant increase in levels of complement activation product, C5a, in the presence of LDH (20 or 200 μg/mL). The low toxicity for vascular cells and blood cells combined with low immunogenicity sheds a light on the biosafety of LDH nanoparticles, and encourages further studies into their biomedical applications. Graphical abstract A biocompatible layered double hydroxide (LDH) nanoparticle as a drug carrier and bio-imaging contrast agent, which has little effect on vascular and blood cells and the complement cascade. [DISPLAY OMISSION]


  • 주제어

    Layered double hydroxide .   Biosafety .   Vascular cells .   Cell proliferation and viability .   Cell migration .   Haemolysis .   Complement activation.  

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