nanoparticles and drug delivery system



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وسام احمد حمزة
13/01/2018 21:28:55


What Are NanoParticles? ? Named for their small size. ? Nanometer: billionth of a meter. ? Roughly 100,000 times smaller that the width of a human hair. ? Assembled through rearranging the atoms. ? Smaller than anything that is put into commercial products. ?DEFINITION: “ Nanoparticles are sub-nanosized colloidal structures composed of synthetic or semi-synthetic polymers.” ? Size range : 10–1000 nm ? The drug is dissolved, entrapped, encapsulated or attached to a nanoparticle matrix. Based on Method of Preparation: ?Nanocapsules:- Nanocapsules are systems in which the drug is confined to a cavity surrounded by a unique polymer membrane. ?Nanospheres:- Nanospheres are matrix systems in which the drug is physically and uniformly dispersed. Classification of Nanoparticles: ? Solid Lipid Nanoparticles ? Polymeric Nanoparticles ? Ceramic Nanoparticles ? Hydrogel Nanoparticles ? Copolymerized Peptide Nanoparticles ? Nanocrystals and Nanosuspensions ? Nanotubes And Nanowires ? Functionalized Nanocarriers ? Nanospheres ? Nanocapsules What Are NanoParticles? ? Named for their small size. ? Nanometer: billionth of a meter. ? Roughly 100,000 times smaller that the width of a human hair. ? Assembled through rearranging the atoms. ? Smaller than anything that is put into commercial products. ?DEFINITION: “ Nanoparticles are sub-nanosized colloidal structures composed of synthetic or semi-synthetic polymers.” ? Size range : 10–1000 nm ? The drug is dissolved, entrapped, encapsulated or attached to a nanoparticle matrix. Based on Method of Preparation: ?Nanocapsules:- Nanocapsules are systems in which the drug is confined to a cavity surrounded by a unique polymer membrane. ?Nanospheres:- Nanospheres are matrix systems in which the drug is physically and uniformly dispersed. Classification of Nanoparticles: ? Solid Lipid Nanoparticles ? Polymeric Nanoparticles ? Ceramic Nanoparticles ? Hydrogel Nanoparticles ? Copolymerized Peptide Nanoparticles ? Nanocrystals and Nanosuspensions ? Nanotubes And Nanowires ? Functionalized Nanocarriers ? Nanospheres ? Nanocapsules

وصف الــ Tags لهذا الموضوع   NanoParticles