I am concerned about all kinds of nanowires. If they are sufficiently strong, they should be able to damage your lungs in the exact same way that asbestos does.
Not through a chemical reaction, but a mechanical process that damages cells. The damage makes it easier to mutate. Which creates a long-term potential for cancer.
Silver nanowires should not be as strong as carbon nanotubes. But are they stronger than cell walls? If so, the potential exists for the same kind of harm as asbestos. Will we only learn whether it happens in practice only after they are widely used?