E.M.L.D. de Jong
- Interplay between Static and Dynamic Energy Transfer in Biofunctional Upconversion Nanoplatforms
- The Journal of Physical Chemistry Letters
- Volume | Issue number
- 6 | 13
- Pages (from-to)
- Document type
- Faculty of Science (FNWI)
Faculty of Medicine (AMC-UvA)
- Van der Waals-Zeeman Institute (WZI)
Van 't Hoff Institute for Molecular Sciences (HIMS)
Clarification of the energy-transfer (ET) mechanism is of vital importance for constructing efficient upconversion nanoplatforms for biological/biomedical applications. Yet, most strategies of optimizing these nanoplatforms were casually based on a dynamic ET assumption. In this work, we have modeled quantitatively the shell-thickness-dependent interplay between dynamic and static ET in nanosystems and validated the model in a typical biofunctional upconversion nanoplatform composed of NaYF4:Er, Yb/NaYF4 upconversion nanoparticles (UCNPs), and energy-acceptor photosensitizing molecule Rose Bengal (RB). It was determined that with a proper thickness shell, the energy transferred via dynamic ET as well as static ET in this case could be significantly improved by similar to 4 and similar to 9 fold, respectively, compared with the total energy transferred from bare core UCNPs. Our results shall form the bedrock in designing highly efficient ET-based biofunctional nanoplatforms.
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