title: Size prediction of recombinant human growth hormone nanoparticles produced by supercritical fluid precipitation.
abstract: Solution-enhanced dispersion by supercritical fluids (SEDS) was applied to produce nano-sized recombinant human growth hormone (hGH) particles. Ethanol was used to help the supercritical carbon dioxide to extract water from the aqueous protein solution. Various sizes of hGH nanoparticles were successfully prepared with a narrow particle size distribution from aqueous ethanol solution without using any additive. The theoretical particle sizes were deduced from the calculated droplet sizes based on a modified Jasuja's equation. The calculated mean particle sizes and the experimentally obtained ones were compared and the results showed an excellent correlation coefficient (R (2)) of 0.995.
authors.affiliation: Department of Chemistry, Kangwon National University, Chunchon, 200-701, South Korea. pyod@kangwon.ac.kr
authors.forename: Dongjin
authors.initials: D
authors.lastname: Pyo
authors.forename: Changhyun
authors.initials: C
authors.lastname: Lim
authors.forename: Donghun
authors.initials: D
authors.lastname: Cho
authors.forename: Dahlkyun
authors.initials: D
authors.lastname: Oh
mesh_terms: D002245:Carbon Dioxide / Q000737:chemistry; D011232:Chemical Precipitation; D002626:Chemistry, Pharmaceutical / Q000379:methods*; D000431:Ethanol / Q000737:chemistry; D019382:Human Growth Hormone / Q000737:chemistry*; D006801:Humans; D053758:Nanoparticles / Q000737:chemistry*; D010316:Particle Size; D011994:Recombinant Proteins / Q000737:chemistry*; D012995:Solubility; D012996:Solutions / Q000737:chemistry; D012997:Solvents / Q000737:chemistry; D014867:Water / Q000737:chemistry
chemical_list: D011994:Recombinant Proteins; D012996:Solutions; D012997:Solvents; D014867:Water; D019382:Human Growth Hormone; D002245:Carbon Dioxide; D000431:Ethanol