Internet of Things (IoT) is realized by the idea of free flow of information amongst various low power embedded devices that use Internet to communicate with one another. It is predicted that the IoT will be widely deployed and it will find applicability in various domains of life. Demands of IoT have lately attracted huge attention and organizations are excited about the business value of the data that will be generated by the IoT paradigm. On the other hand, IoT have various security and privacy concerns for the end users that limit its proliferation. In this paper we have identified, categorized and discussed various security challenges and state of the art efforts to resolve these challenges. Keywords: Security in IoT, Privacy in IoT, DoS in IoT, Secure routing in IoTIn [17] the authors identified and discussed three representative sensing applications. They are personal sensing, designated sensing and community sensing each requiring heterogeneous security and privacy

Nanoparticles with multifunctionality are being designed and formulated to overcome various limitations of drugs as well as conventional drug delivery systems. Engineered nanoparticles to specifically target cancer cells have the ability to reduce collateral damage on normal tissue due to pan-toxic effects of drugs. Pragmatic approaches are in consideration to make advancement in cancer therapy as the new developed methods exhibited an improved targeted anticancer therapeutic delivery with better treatment outcomes. An effective cancer therapy requires both the passive and active targeting, along with a consistent knowledge of various physiologic barriers to successfully achieve targeted delivery. The nanoparticles can be linked with tumor targeting moieties like specific ligands, monoclonal antibodies, and carbohydrates for active targeting of cancer cells with great affinity and precision. This review presents some recent research on targeted delivery for cancer therapy and also discusses examples of types of engineered nanoparticles exploited for active cancer targeting.

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Recently, nanoscale (<100 nm) inorganic materials, especially spherical shaped zinc oxide (ZnO-QDs), have received a lot of attention from the broad community because of their potential utilization in various technologies.