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Nanotechnology-Based Biosensors in Drug Delivery

  • Guigen Zhang
Part of the Biotechnology: Pharmaceutical Aspects book series (PHARMASP, volume X)

Introduction

Traditional drug delivery vehicles are passive devices functioning mainly through a diffusion process in which the release of drugs is controlled either by the rate of diffusion through the pores of the drug carriers or by the rate of degradation of the carrier matrices. This passive process lacks the mechanism for a constant and on-demand means to administer drug delivery as needed. This has led to inability to deliver therapeutic moieties that can selectively reach the desired targets with marginal or no collateral damage to the normal organs and tissues (Ferrari, 2005).

Over the years, progresses have been made to improve the situation, specifically in ways to guide the accumulation of the drug delivery vehicles to desired sites and control the release mechanism (Barratt et al., 2002). For example, as a first generation of drug delivery systems, micro-capsules are often used for controlled release of proteins, peptides, or drugs within the body. Although they are...

Keywords

Current Response Surface Acoustic Wave Sensitive Element Evanescent Wave Potentiometric Sensor 
These keywords were added by machine and not by the authors. This process is experimental and the keywords may be updated as the learning algorithm improves.

Notes

Acknowledgment

Many thanks to my students Y.L. Rao, V. Anandan, X. Yang, R. Cai, X. Tang and postdoctoral fellow S.J. Lee for their contributions to the work discussed here. The financial supports from the National Science Foundation, the University of Georgia Research Foundation, the Faculty of Engineering and the College of Agricultural and Environmental Science at The University of Georgia are acknowledged.

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© American Association of Pharmaceutical Scientists 2009

Authors and Affiliations

  • Guigen Zhang
    • 1
  1. 1.Faculty of EngineeringThe University of GeorgiaAthensUSA

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