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Assembling patchy plasmonic nanoparticles with aggregation-dependent antibacterial activity
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DOI：10.1016/j.jcis.2020.07.006.png)
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Abstract
En 中文
We realise an antibacterial nanomaterial based on the self-limited assembly of patchy plasmonic colloids, obtained by adsorption of lysozyme to gold nanoparticles. The possibility of selecting the size of the assemblies within several hundred nanometres allows for tuning their optical response in a wide range of frequencies from visible to near infrared. We also demonstrate an aggregation-dependent modulation of the catalytic activity, which results in an enhancement of the antibacterial performances for assemblies of the proper size. The gained overall control on structure, optical properties and biological activity of such nanomaterial paves the way for the development of novel antibacterial nanozymes with promising applications in treating multi drug resistant bacteria. (C) 2020 Elsevier Inc. All rights reserved.
Keywords:
Gold nanoparticles
Nanozyme
Patchy colloids
Plasmonics
Self-assembly
Functional nanomaterials
Antibacterial activity
Protein-nanoparticle interaction
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