Question

make sure you go for this trek only when you are in the pink of your health. Since the trek is arduous and entails walking on ice for 5 to 7 hours each day"

Answer 1

These iron nanoparticles are intrinsically unstable and prone to aggregation; however, we rendered them stable in the long term by addition of 40 mM citrate buffer pH 3.0. In contrast, amorphous iron oxide nanoparticles (diameters of 10–40 nm) produced using R. acetosa extracts are highly stable.