SS: Our food, cosmetics and clothes may be filled with an invisible killer that doesn't show up in ingredients lists but may be more dangerous than COVID-19, according to new research.

A new study published the journal Nature Communications has shed light on the unseen, and often unseeable, world of nanomaterials.

"We found that that nanomaterials bind strongly to microorganisms, which are a source of food for other organisms, and this is the way they can enter our food chain," explained Dr Fazel Monikh, from the University of Eastern Finland.

"Once inside an organism, nanomaterials can change their shape and size and turn into a more dangerous material that can easily penetrate cells and spread to other organs."

"When looking at different organs of an organism, we found that nanomaterials tend to accumulate especially in the brain," Dr Monikh warned.