After entering the body, nanoparticles can reach the organs through systemic circulation. Furthermore, depending on their characteristics, such as size, shape, and chemical reactivity, they can cross the blood-brain barrier, or they can reach the brain through axonal transport along the olfactory nerve

yes and nanobots. i would like some sort of face shield that would emit neg ions to disarm them if thats possible.

In an atom, a positive charge occurs when an atom has more protons than electrons. The proton is what determines its positive charge. It is denoted with a plus (+) sign. It attracts negative charges and repels other positive charges.

This difference in charge is called the cell's membrane potential. In the process of depolarization, the negative internal charge of the cell temporarily becomes more positive (less negative). This shift from a negative to a more positive membrane potential occurs during several processes, including an action potential. During an action potential, the depolarization is so large that the potential difference across the cell membrane briefly reverses polarity, with the inside of the cell becoming positively charged.