TP Chemical technology 32 Technology: general issues 22 QD Chemistry 21 Research & information: general 21 Article 20 chemistry 18 QC1-999 Physics 15 controlled study 15 Biology, life sciences 13 unclassified drug 13 Animals 12 Sulfur compounds 12 animal 12 Fourier transform infrared spectroscopy 11 Scanning electron microscopy 11 human 11 nonhuman 11 Chemistry 10 Crystal structure 10 Layered double hydroxide 10 Research and information: general 10 Adsorption 9 Dyes 9 Herbicides 9 Humans 9 Nanocomposites 9 T Technology (General) 9 high performance liquid chromatography 9 Layered double hydroxides 8 animal cell 8