An in vitro toxicity evaluation of gold-, PLLA- and PCL-coated silica nanoparticles in neuronal cells for nanoparticle-assisted laser-tissue soldering

•Nanoparticles can be used for laser tissue soldering in the brain.•Uptake and toxicity of three nanoparticle types were investigated in 2 cell lines.•NPs were found in membrane-surrounded vacuoles and the cytoplasm, but not in the nucleus.•Reduced GSH levels were found depending on the nanoparticle...

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