Microscopy, Electron, Transmission transmission electron microscopy 9 chemistry 6 ultrastructure 6 Humans 4 human 4 metabolism 4 Article 3 Microscopy, Electron, Scanning 3 Spectroscopy, Fourier Transform Infrared 3 controlled study 3 cytology 3 drug effect 3 infrared spectroscopy 3 nonhuman 3 procedures 3 scanning electron microscopy 3 Adult 2 Animals 2 Anti-Bacterial Agents 2 Escherichia coli 2 Ferric Compounds 2 Metal Nanoparticles 2 Microbial Sensitivity Tests 2 Neural Networks, Computer 2 Plant Extracts 2 Polyesters 2 Polymers 2 X ray diffraction 2 X-Ray Diffraction 2