Every biological system is naturally equipped with a
defense mechanism to protect against abnormal changes caused by
either local, environmental, or biochemical alteration. White blood
cells (WBC) play the role of such a ‘soldier’ in our immune
response. One type of WBC, known as macrophages, is the most
efficient and specialized fighter since it is simultaneously
equipped with the power of selective identification and elimination
of foreign invaders, as well as the potency to repair wounds.
Depending on their work distribution, macrophages are mainly
comprised of two types, M1 and M2. M1 cells act as the
‘professional killer’, while M2 cells are more concentrated on
healing activity.
Researchers use gold nanorod scattering to identify immune
system’s ‘killer and savior’
