[VygmraMGVl]

Also probably a skin and lung irritant. Lots of people have contact allergies to macroscale silver and nanowires tend to get embedded in cells in soft tissue.

[OutOfHere]

Regarding nanowires, for what it's worth, nano silver is used as a highly effective antimicrobial skin cream, and none of its users complain of an allergy. In this way it also accelerates wound healing. It is even more benign than some skin antibiotics that trigger an allergy. Given this evidence, I don't think nanoscale use of silver in clothing is going to be a a concern for the vast majority of people.

Disclaimer: Silver is a slight poison and should not be used for a prolonged duration.

[serf]

>and none of its users complain of an allergy.

I have a hard time imagining that's true for any material, ever.

[throwaway290]

I think the concern is about when the clothing starts falling apart and nanowires end up in the air of your room and eventually your lungs/stomach, like nanoplastics cross into tissue and individual cells, accumulate, turn up in sperm/placenta etc.

[OutOfHere]

Upon further research, it turns out that nano silver gradually accumulates in the brain and the testes. It is otherwise eliminated from the body, but not so easily from these organs. As such, it is not safe for long-term exposure.

References:

Accumulation of Silver Nanoparticles in Brain and Testes during Long-Term Ingestion to Mammals (2017)

Disturbance in Mammalian Cognition Caused by Accumulation of Silver in Brain (2021) (pubmed.ncbi.nlm.nih.gov)