Effect of environment pH on the photophysics of fisetin in solid lipid nanoparticles
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- 作者：Shrabanti Das ; Arnab Maity ; Pradipta Purkayastha ; pradiptp@gmail.com" class="auth_mail" title="E-mail the corresponding author
- 关键词：pH ; Lipid nanoparticles ; Proton transfer ; Fluorescence ; Tautomerisation
- 刊名：Journal of Photochemistry and Photobiology B: Biology
- 出版年：2015
- 出版时间：December 2015
- 年：2015
- 卷：153
- 期：Complete
- 页码：305-310
- 全文大小：1035 K
文摘
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Photophysics of fisetin has been studied in solid lipid nanoparticle (SLN).
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pH of the solutions was varied from 5 to 9.
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The neutral and anionic forms of fisetin coexist in ground state.
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In the excited state and at low pH, the anionic form of fisetin predominates.
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Limited percolation of H+ and OH− ions occurs in the SLNs.