- Inorganic Chemistry 24
- Materials Science, general 21
- Polymer Sciences 21
- Environmental Chemistry 20
- Optics, Lasers, Photonics, Optical Devices 19
- Environmental Management 16
- Green Chemistry 16
- Renewable and Green Energy 16
- Sustainable Development 16
- Chemistry/Food Science, general 11
- Food Science 9
- Physical Chemistry 8
- Biotechnology 7
- Nutrition 7
- Biomaterials 6
- Catalysis 6
- Agriculture 5
- Bioinformatics 5
- Cancer Research 5
- Stem Cells 5