5 Chemicals and chemical preparations for medical, veterinary and pharmaceutical purposes; chemicals and chemical preparations for medical, veterinary and pharmaceutical research purposes; chemicals and chemical preparations for medical, veterinary and pharmaceutical treatment purposes; biochemical substances and biochemical preparations for medical, veterinary and pharmaceutical purposes; biochemical substances and biochemical preparations for medical, veterinary and pharmaceutical research purposes; biochemical substances and biochemical preparations for medical, veterinary and pharmaceutical treatment purposes; biological substances and biological preparations for medical, veterinary and pharmaceutical purposes; biological substances and biological preparations for medical, veterinary and pharmaceutical research purposes; biological substances and biological preparations for medical, veterinary and pharmaceutical treatment purposes; nanoparticle substances and nanoparticle preparations for medical, veterinary and pharmaceutical purposes; nanoparticle substances and nanoparticle preparations for medical, veterinary and pharmaceutical research purposes; nanoparticle substances and nanoparticle preparations for medical, veterinary and pharmaceutical treatment purposes; preparations of trace elements for human and animal use; silicon for medical, veterinary and pharmaceutical purposes; silicon nanoparticle materials for medical, veterinary and pharmaceutical purposes; porous silicon nanoparticle materials for medical, veterinary and pharmaceutical purposes; pharmaceutical preparations for carrying and delivery of chemical, biochemical, biological and pharmaceutical substances; pharmaceutical nanoparticle preparations for carrying and delivery of chemical, biochemical, biological and pharmaceutical substances; pharmaceutical silicon nanoparticle preparations for carrying and delivery of chemical, biochemical, biological and pharmaceutical substances; pharmaceutical porous silicon nanoparticle preparations for carrying and delivery of chemical, biochemical, biological and pharmaceutical substances; pharmaceutical preparations for carrying and delivery of chemical, biochemical, biological and pharmaceutical substances for vaccines; pharmaceutical nanoparticle preparations for carrying and delivery of chemical, biochemical, biological and pharmaceutical substances for vaccines; pharmaceutical silicon nanoparticle preparations for carrying and delivery of chemical, biochemical, biological and pharmaceutical substances for vaccines; pharmaceutical porous silicon nanoparticle preparations for carrying and delivery of chemical, biochemical, biological and pharmaceutical substances for vaccines; pharmaceutical preparations for carrying and delivery of chemical, biochemical, biological and pharmaceutical substances for antiseptics; pharmaceutical nanoparticle preparations for carrying and delivery of chemical, biochemical, biological and pharmaceutical substances for antiseptics; pharmaceutical silicon nanoparticle preparations for carrying and delivery of chemical, biochemical, biological and pharmaceutical substances for antiseptics; pharmaceutical porous silicon nanoparticle preparations for carrying and delivery of chemical, biochemical, biological and pharmaceutical substances for antiseptics; pharmaceutical preparations for carrying and delivery of chemical, biochemical, biological and pharmaceutical substances for antibiotics; pharmaceutical nanoparticle preparations for carrying and delivery of chemical, biochemical, biological and pharmaceutical substances for antibiotics; pharmaceutical silicon nanoparticle preparations for carrying and delivery of chemical, biochemical, biological and pharmaceutical substances for antibiotics; pharmaceutical porous silicon nanoparticle preparations for carrying and delivery of chemical, biochemical, biological and pharmaceutical substances for antibiotics; pharmaceutical preparations for carrying and delivery of chemical, biochemical, biological and pharmaceutical substances for dermatological treatment preparations; pharmaceutical nanoparticle preparations for carrying and delivery of chemical, biochemical, biological and pharmaceutical substances for dermatological treatment preparations; pharmaceutical silicon nanoparticle preparations for carrying and delivery of chemical, biochemical, biological and pharmaceutical substances for dermatological treatment preparations; pharmaceutical porous silicon nanoparticle preparations for carrying and delivery of chemical, biochemical, biological and pharmaceutical substances for dermatological treatment preparations; pharmaceutical preparations for carrying and delivery of chemical, biochemical, biological and pharmaceutical substances for skin care preparations; pharmaceutical nanoparticle preparations for carrying and delivery of chemical, biochemical, biological and pharmaceutical substances for skin care preparations; pharmaceutical silicon nanoparticle preparations for carrying and delivery of chemical, biochemical, biological and pharmaceutical substances for skin care preparations; pharmaceutical porous silicon nanoparticle preparations for carrying and delivery of chemical, biochemical, biological and pharmaceutical substances for skin care preparations; pharmaceutical preparations for carrying and delivery of chemical, biochemical, biological and pharmaceutical substances for drug delivery devices; pharmaceutical nanoparticle preparations for carrying and delivery of chemical, biochemical, biological and pharmaceutical substances for drug delivery devices; pharmaceutical silicon nanoparticle preparations for carrying and delivery of chemical, biochemical, biological and pharmaceutical substances for drug delivery devices; pharmaceutical porous silicon nanoparticle preparations for carrying and delivery of chemical, biochemical, biological and pharmaceutical substances for drug delivery devices; pharmaceutical preparations for stabilising of chemical, biochemical, biological and pharmaceutical substances; pharmaceutical nanoparticle preparations for stabilising of chemical, biochemical, biological and pharmaceutical substances; pharmaceutical silicon nanoparticle preparations for stabilising of chemical, biochemical, biological and pharmaceutical substances; pharmaceutical porous silicon nanoparticle preparations for stabilising of chemical, biochemical, biological and pharmaceutical substances; pharmaceutical preparations for controlled release and onset of chemical, biochemical, biological and pharmaceutical substances; pharmaceutical nanoparticle preparations for controlled release and onset of chemical, biochemical, biological and pharmaceutical substances; pharmaceutical silicon nanoparticle preparations for controlled release and onset of chemical, biochemical, biological and pharmaceutical substances; pharmaceutical porous silicon nanoparticle preparations for controlled release and onset of chemical, biochemical, biological and pharmaceutical substances