Key points from article :
Swedish researchers have created a pH-activated nanorobot that targets and kills cancer cells in mice.
This nanorobot uses a unique shape-shifting mechanism to expose cancer cell-killing proteins in the acidic environment of tumours.
The nanorobot's selective action was confirmed in lab tests on human cells and significantly reduced tumour growth in mice.
Although promising, researchers say further testing in complex cancer models is needed before human trials can be considered.
This groundbreaking technology could pave the way for a new class of cancer treatments using targeted nanorobots.
The research was conducted at the Karolinska Institutet in Sweden and published in Nature Nanotechnology.