One of the ways of making drug delivery more efficient is the use of nanosystems for targeted delivery and timed release. This new monograph in the ASME-Momentum Press series on Biomedical & Nanomedical Technologies will explore the latest research on nanoparticulate delivery systems for the immune modulating agent, GMDP (N-acetylglucosaminyl-N-acetylmuramyl-Lisoglutamine), an important component in cell wall structure and receptors. Silica nanoparticles in particular have shown great promise in enhanced delivery of drugs targeted at this cellular wall component.This concise monograph series focuses on the implementation of various engineering principles in the conception, design, development, analysis and operation of biomedical, biotechnological and nanotechnology systems and applications. Each volume is written in an accessible manner and in a concise and manageable length, and will provide an invaluable resource for initial enquiries about technologies, encapsulating the latest developments and applications with reference sources for further detailed information.