Journal
SMALL
Volume 10, Issue 21, Pages 4386-4394Publisher
WILEY-V C H VERLAG GMBH
DOI: 10.1002/smll.201401121
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Funding
- National Natural Science Foundation of China [21261130090, 21073047, 91127043]
- Chinese Academy of Sciences [XDA09030303]
- CAS Key Laboratory of Nano Bioeffect and Biosafety
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A novel and convenient method to synthesize the nanocomposites combining graphene oxides (GO) with gold nanoparticles (AuNPs) is reported and their applications to modulate amyloid peptide aggregation are demonstrated. The nanocomposites produced by pulsed laser ablation (PLA) in water show good biocompatibility and solubility. The reduced aggregation of amyloid peptides by the nanocomposites is confirmed by Thioflavin T fluorescence and atomic force microscopy. The cell viability experiments reveals that the presence of the nanocomposites can significantly reduce the cytotoxicity of the amyloid peptides. Furthermore, the depolymerization of peptide fibrils and inhibition of their cellular cytotoxicity by GO/AuNPs is also observed. These observations suggest that the nanocomposites combining GO and AuNPs have a great potential for designing new therapeutic agents and are promising for future treatment of amyloid-related diseases.
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