Nanostructured materials 281 Bacteria 223 Microbiology 140 Materials 124 Nanotechnology 124 History 119 Bacteriology 108 Materials management 105 Engineering 83 Philosophy 74 Polymers 67 Purchasing and materials management 67 Economics 63 Biotechnology 59 Materia medica, Vegetable 59 Dissertations, Academic (Ph.D) 56 India 56 Material culture 56 Plant diseases 52 Genetics 51 Composite materials 49 Dialectical materialism 49 Fungi 48 Materialism 48 Nanostructures 47 Materials science 46 Viral, Bacterial and Fungal Diseases of Plants, (New March 2000) 44 Biomedical materials 43 Competitive exams study materials--Study and teaching 43 Engineering materials 42