antibacterial activity Technology: general issues 14 cytotoxicity 11 antibacterial 9 mechanical properties 9 antimicrobial activity 8 antioxidant activity 8 Research & information: general 6 antimicrobial 6 antioxidant 6 electrospinning 6 secondary metabolites 6 surface modification 6 3D printing 5 History of engineering & technology 5 apoptosis 5 biopolymers 5 nanomaterials 5 Biology, life sciences 4 Medicine 4 antibacterial properties 4 anticancer 4 bioactivity 4 biomaterials 4 chitosan 4 drug delivery 4 gelatin 4 lignin 4 microstructure 4 nanocomposites 4