Silver nanoparticles (1 nm1\text{ nm}1 nm to 100 nm100\text{ nm}100 nm in size) are widely used in commercial antimicrobial underarm deodorant sprays due to their highly effective antibacterial properties. However, some toxicologists have raised concerns regarding the safety of repeatedly applying these engineered particles to human skin.
Explain one potential hazard to human health associated with using cosmetic sprays containing silver nanoparticles on the skin.
Practise Edexcel GCSE Chemistry Bulk and surface properties of matter including nanoparticles with exam-style questions for Foundation and Higher tier. 63 questions, matched to the Edexcel GCSE Chemistry (1CH0) specification and written in Paper 1 and Paper 2 style. Every question includes a full worked solution and mark scheme, so you can see where marks are awarded rather than just whether you got the answer right.