ABSTRACT

Nanoscience consists of a wide range of topics, methods, and

applications that have in common concepts and physical laws that

prevail only in nanometer scale. The research in nanoscience is

typically interdisciplinary in nature and covers a wide range of

traditional scientific fields. Nanoscience deals with objects and

phenomena that appear as the characteristic dimension of the

system below about 100 nm. At this size range the physics that

govern macroscopic world does not fully apply but new phenomena

become important. These phenomena include the increasing role

of surface atoms (more surface for the same mass of the material),

the unclear concept of surface for clusters consisting of just a few

atoms, the curvature effects of small objects, and the increasing

importance of quantum mechanics for nanometer-sized objects.

The common unifying concepts and physical laws that prevail

in the nanoscale can be collectively termed “nanoscience.” The

properties of nanomaterials differ significantly from those of the

bulk of the same material, such as high tensile strength, low weight,

high electrical and thermal conductivity, and unique electronic

properties