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\bibitem{Zheng_etal2016} {\textquotedblleft}\textit{Encapsulation of Single Plasmonic Nanoparticles within ZIF-8 and SERS Analysis of the MOF Flexibility}{\textquotedblright}. Zheng G, de Marchi S, Lopez-Puente V, Sentosun K, Polavarapu L, Perez-Juste I, Hill EH, Bals S, Liz-Marzan LM, Pastoriza-Santos I, Perez-Juste J, Small \textbf{12}, 3935 (2016).   http://doi.org/10.1002/smll.201600947

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