The hasty developments in nanotechnology will have intense impact on various areas of therapeutic applications like drugs and bioactive delivery, tissue engineering, and other application. This review mainly emphasized on the nanoparticle systems for delivery of antimicrobial drug. Various antimicrobial agents have been used to kill or inhibit the growth of microbes such as bacteria, fungi and viruses. As the pharmacological actions of these drugs have been well established, feeble delivery and degradation could lead to insufficient therapeutic index and cause side effects. Nanoparticles have many advantages like small and controllable size, large surface area to mass ratio, and functionalizable structure. These properties make the nanoparticles, a suitable delivery system of antimicrobials. Along with this, it also overcomes the limitations intra-additional antimicrobial therapeutics. In last few years, development and fabrication of antimicrobial agent in nanoparticle systems has evolved as an innovative and promising alternative that increases therapeutic effectiveness and overcoming the undesirable side effects. In this chapter, we focused on the current progress and challenges in producing nanoparticle system for antimicrobial drugs delivery for the treatment of microbial diseases.

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The number of medications and the ways in which they can be administered have expanded dramatically over the years. One such advance has been the development of transdermal delivery systems. The transdermal route of drug delivery has attracted researchers due to many biomedical advantages associated with it. However, excellent impervious nature of skin is the greatest challenge that has to be overcome for successfully delivery of the drug molecules to the systemic circulation via this route. Various types of transdermal approaches used to incorporate the active ingredients include use of prodrugs/lipophilic analogs, permeation enhancers, sub saturated systems and entrapment into vesicular systems. Innovations in technologies continue to occur at a positive rate, making the technology a fertile and vibrant. This article deals with the innovations in the field of TDDS to improve the release rate and other parameters and most suitable to the patient.

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