Front Cover -- Nanosensors for Smart Agriculture -- Copyright Page -- Contents -- List of contributors -- Section I Basic principles -- 1 Nanotechnology for agriculture: an introduction -- 1.1 Introduction -- 1.1.1 Nanotechnology in agriculture -- 1.1.2 Overview of nanotechnology research activities in the agricultural sector -- 1.2 Commercial applications of nanotechnology within the agricultural sector -- 1.2.1 Mesoporous silica nanoparticles -- 1.2.1.1 Mesoporous silica nanoparticles as a carrier for urea