Oxygen Scavenging Nanoparticle
 |
|
Описание:
?-tocopherol and transition metal in scavenging mixture were evaluated as a possible oxygen scavenger. The effects of moisture, amount of transition metal, and thermal processing on oxygen scavenging capability were also investigated. Our results showed that ?-tocopherol and transition metal had 6.72 cc O2/g oxygen scavenging capacity and 0.11 cc O2 /g?day oxygen scavenging rate. Nanoencapsulation technology was adopted for the possible oxygen scavenging activation system. ?-tocopherol-loaded poly ?-caprolactone (PCL) nanoparticles were prepared by O/W emulsion solvent evaporation with ultrasonication. The effect of PCL concentration, solvent in oil phase, and ultrasonication time on encapsulation efficiency (%), particle mean size, and loading (%) were investigated. Overall, 5% PCL in methylene chloride (DCM) as solvent in oil phase with 3 min ultrasonication time showed the best encapsulation formulation and this formulation was selected for the further research. ?-tocopherol-loaded...Похожие книги
 | The Strategy Concept and Process: A Pragmatic Approach (2nd Edition) Автор: Arnoldo C. Hax, Nicolas S. Majluf Год: 1999 |
 | The Socio-Economic Causes and Consequences of Desertification in Central Asia (NATO Science for Peace and Security Series C: Environmental Security) Автор: Robert Conte, Micheline Musette Год: 2008 |
 | Coatings Technology Handbook Год: 2005 |
 | Allergens and Allergen Immunotherapy, Год: 2008 |
 | Full-Wave Equivalent Circuit for Printed Circuit Structures Автор: Eng Kee Chua Год: 2010 |