Related by context. Frequent words. (Click for all words.) 64 dermis 64 stratum corneum 64 collagen matrix 62 oral mucosa 62 microcapsules 60 nanocapsules 60 Hyaluronic acid 60 microbubbles 60 peritoneal cavity 60 antibody fragment 60 mucous membrane 59 anal canal 59 photosensitizer 59 mucosal surfaces 59 receptor molecules 59 sclera 59 glans 59 female reproductive tract 59 nanobubbles 59 Langerhans cells 59 epidermis 59 stimulate collagen 58 porphyrins 58 micelles 58 cancerous tissues 58 sebaceous glands 58 liposome 58 gastrointestinal GI tract 58 microneedle 58 intestinal tissue 58 aqueous humor 57 dentin 57 fatty plaques 57 ablating 57 subcutaneous tissue 57 tubules 57 outer membrane 57 blackhead 57 applied topically 57 lymph vessels 57 synthetic peptides 57 bacterial enzyme 57 mucin 57 Scar tissue 57 Ultraviolet light 57 clog pores 56 gastro intestinal tract 56 fibroblast cells 56 nano particle 56 hydrogel 56 prostate tissue 56 biomolecule 56 proteins peptides 56 dissolve blood clots 56 nanoporous 55 dermal 55 polyethylene glycol PEG 55 lytic 55 digestive juices 55 waxy substance 55 gel formulation 55 collagen fibers 55 TB bacterium 55 sinus cavities 55 liposomes 55 biosynthetic 55 sebum 55 photodynamic 55 polymer matrix 55 synovium 55 dsRNA 55 stromal 55 topically applied 55 physiologically relevant 55 photocatalyst 55 digestive organs 55 transdermal patches 55 antioxidant enzymes 55 glycation 55 vaginal tissue 54 mucosa 54 Hyaluronic Acid 54 iontophoresis 54 siRNA molecules 54 mannose 54 metabolically active 54 magnetic beads 54 microparticles 54 hydroxyapatite 54 mesenchymal cells 54 tumor antigen 54 membrane 54 heparan sulfate 54 mucous membranes 54 amyloid fibrils 54 nanosized 54 dye molecules 54 mouthparts 54 hypochlorite 54 microspheres 54 naturally occurring compounds