nanotechnology
nanotechnology nanotechnology is the science of matter with sizes in the range of 1 – 100 nm (1 – 100 �10 − 9 m). These are scales of large molecules; for example, the sizes of some familiar matter are DNA, 1 – 2 nm; virus, 3 – 50 nm; and red blood cell, ∼ 300 nm. At these nano scales, matter behaves quite differently than it would at the macro level to which we are accustomed. Properties such as conductivity, magnetism, melting and boiling points, and reactivity may be dissimilar at the nano and macro scales due to the quantum mechanical behavior of small structures at molecular dimensions. nanotechnology provides a means to manufacture particles with very high surface area to mass ratio and, together with their unique properties, may provide opportunities for more surface interactions and biochemical reactions to ensue. One use of nanotechnology is for drug delivery devices. Nano cages with embedded drugs can be delivered to their targets with high specifi city and enable interaction...