Quantum Dots: Basics to Biological Applications

Authored by: Sarwat B. Rizvi , Mo Keshtgar , Alexander Marcus Seifalian

Handbook of Nanophysics

Print publication date:  September  2010
Online publication date:  September  2010

Print ISBN: 9781420075465
eBook ISBN: 9781420075496
Adobe ISBN:

10.1201/9781420075496-3

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Abstract

A nanometer (nm) is one billionth, or 10−9, of a meter and the most fundamental processes of living matter occur at this scale. Nanotechnology is therefore the manipulation of matter in dimensions <100 nm. The term nanotechnology was defined by Professor Nario Taniguchi in 1974: “Nanotechnology mainly consists of the processing of, separation, consolidation, and deformation of materials by one atom or one molecule.” Nanotechnology, therefore, deals with the control of matter on the atomic and molecular scale. The whole concept revolves around the fact that at the nano-scale, materials show very different physical and chemical properties compared to those that they exhibit on a macroscale, hence enabling unique applications. Nanoparticles have found application in many areas including advanced materials, electronics, magnetics and optoelectronics, biomedicine, pharmaceuticals, cosmetics, energy, and catalytic and environmental detection and monitoring [1]. Nanoscience and nanotechnology lie at the interface between physics, chemistry, engineering, and, most importantly, biology.

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