Article 5 chemical structure procedures chemistry 4 controlled study 3 synthesis 3 ultrastructure 3 unclassified drug 3 Cellulose 2 Humans 2 Raman spectrometry 2 aqueous solution 2 cellulose 2 field emission scanning electron microscopy 2 human 2 nonhuman 2 particle size 2 polycaprolactone 2 polymerization 2 porosity 2 simulation 2 (3 carboxy 2 pyridinyl)amino methylene 1,1 bisphosphonic acid 1 (3 methyl 2 pyridinyl)aminomethylene 1,1 bisphosphonic acid 1 (4 methyl 2 pyridinyl)aminomethylene 1,1 bisphosphonic acid 1 (4,6 dimethyl 2 pyridinyl)amino methylene 1,1 bisphosphonic acid 1 (5 bromo 2 pyridinyl)amino methylene 1,1 bisphosphonic acid 1 (5 chloro 2 pyridinyl)amino methylene 1,1 bisphosphonic acid 1 (5 iodo 2 pyridinyl)amino methylene 1,1 bisphosphonic acid 1 (5 methyl 2 pyridinyl)aminomethylene 1,1 bisphosphonic acid 1 (6 chloro 2 pyridinyl)amino methylene 1,1 bisphosphonic acid 1