**Author details**

Utpal Bhadra1 , Manika Pal Bhadra2 , Jagannadh Bulusu3 and J.S. Yadav4

1 Functional Genomics & Gene Silencing Group, CSIR-Centre for Cellular & Molecular Biology, Hyderabad, India

2 Centre for Chemical Biology, CSIR-Indian Institute of Chemical Technology, Hyderabad, India

3 Division of Organic Chemistry-I, Indian Institute of Chemical Technology, Hyderabad, India

4 Ex-Director & CSIR Bhatnagar Fellow, Indian Institute of Chemical Technology, Hyderabad, India

We are highly sympathetic due to sudden demise of Dr Jagannath Bulusu and we hope his soul lies in peace

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**Chapter 14**

**Pharmacokinetic Properties and Safety of Cadmium-**

**Containing Quantum Dots as Drug Delivery Systems**

The pharmaceutical industry's current challenge to serve public health needs by has become increasingly difficult due to obstacles that slow down the process of identifying and develop‐ ing new treatments of unmet medical diseases. There are many auspicious new therapies that have progressed into clinical trials in recent years; they include treatments for cancer, inflam‐ mation, neurodegenerative and psychiatric disorders, anti-infective respiratory and metabolic disorders, but their development has failed for a number of reasons. Overcoming these obstacles incurs tremendous costs and takes a lot of time; new therapies must then be identified get successfully issued into the marketplace. In response, government, academic and phar‐ maceutical industry researchers are looking for new ways to approach the discovery of new medicines and technologies that will not only combat illness but also improve the quality of life, a most important outcome of expensive new treatments. Counterbalancing this important goal are efforts to innovate in the face of increasing public pressure to control costs and increase

For a few years now, nanotechnology has emerged as an area of science and technology that is leading us to a new industrial revolution. Nanotechnology is defined as scientific and technological development at the atomic and molecular levels, in the range of about 1-100 nm, to obtain a fundamental understanding of phenomena and materials on a nanoscale and to create and use structures, devices and systems that have novel properties and functions due

> © 2014 The Author(s). Licensee InTech. This chapter is distributed under the terms of the Creative Commons Attribution License (http://creativecommons.org/licenses/by/3.0), which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited.

Lourdes Rodriguez-Fragoso, Ivonne Gutiérrez-Sancha, Patricia Rodríguez-Fragoso,

http://dx.doi.org/10.5772/58553

**1. Introduction**

Anahí Rodríguez-López and Jorge Reyes-Esparza

the speed with which new medicines arrive on the marketplace.

Additional information is available at the end of the chapter

