Hydrophobic platinum(II)-5,10,15,20-tetrakis-(2,3,4,5,6-pentafluorophenyl)-porphyrin (PtTFPP) was physically incorporated into micelles formed from poly(ε-caprolactone)-block-poly(ethylene glycol) to enable the application of PtTFPP in aqueous solution. Micelles were characterized using dynamic light scattering (DLS) and atomic force microscopy (AFM) to show an average diameter of about 140 nm. PtTFPP showed higher quantum efficiency in micellar solution than in tetrahydrofuran (THF) and dichloromethane (CH2Cl2). PtTFPP in micelles also exhibited higher photostability than that of PtTFPP suspended in water. PtTFPP in micelles exhibited good oxygen sensitivity and response time. This study provided an efficient approach to enable the application of hydrophobic oxygen sensors in a biological environment.
Details
- Nanostructured Oxygen Sensor - Using Micelles to Incorporate a Hydrophobic Platinum Porphyrin
- Su, Fengyu (Author)
- Alam, Ruhaniyah (Author)
- Mei, Qian (Author)
- Tian, Yanqing (Author)
- Youngbull, Cody (Author)
- Johnson, Roger (Author)
- Meldrum, Deirdre (Author)
- Biodesign Institute (Contributor)
- Digital object identifier: 10.1371/journal.pone.0033390
- Identifier TypeInternational standard serial numberIdentifier Value1045-3830
- Identifier TypeInternational standard serial numberIdentifier Value1939-1560
- The article is published at http://journals.plos.org/plosone/article?id=10.1371/journal.pone.0033390, opens in a new window
Citation and reuse
Cite this item
This is a suggested citation. Consult the appropriate style guide for specific citation guidelines.
Su, F., Alam, R., Mei, Q., Tian, Y., Youngbull, C., Johnson, R. H., & Meldrum, D. R. (2012). Nanostructured Oxygen Sensor - Using Micelles to Incorporate a Hydrophobic Platinum Porphyrin. PLoS ONE, 7(3). doi:10.1371/journal.pone.0033390