Biomedical Engineering Reference
In-Depth Information
Chapter 4
Nanotechnology
Mieczyslaw Jurczyk
a,
*
and Mieczyslawa U. Jurczyk
b
a
Poznan University of Technology, Institute of Materials Science and Engineering,
M. Sklodowska-Curie Sq. 5, 60-695 Poznan, Poland
b
Division Mother's and Child's Health, University of Medical Sciences,
Polna 33 Street, 60-535 Poznan, Poland
*
mieczyslaw.jurczyk@put.poznan.pl
Nanotechnology is seen as one of the most important ields of
innovation and technology today [6, 8, 59]. The size is in the range
of 1-100 nm the theories of classical and quantum mechanics
are no long valid and a rich variety of unexpected properties are
possible. New applications for materials can be created with novel
or signiicantly enhanced properties. Products produced from these
materials exhibit unique properties [6]. Nanoparticles are produced
in two main ways (Fig. 4.1). The traditional way of producing ine
particles has been “top-down” referring to the reduction through
attrition and various methods of comminution in the traditional
sense. During the past few years and increasingly, methods of
production using “bottom-up” techniques are being increasingly
utilized [39]. Bottom up approach refers to the buildup of a material
from the bottom: atom by atom, molecule by molecule, or cluster by
cluster.
