Jeonghun Lee, Eun-Taex Oh, Yeji Han, Ha Gyeong Kim, Heon Joo Park, Chulhee Kim, "Mesoporous Silica Nanocarriers with Cyclic Peptide Gatekeeper: Specific Targeting of Aminopeptidase N and Triggered Drug Release by Stimuli-Responsive Conformational Transformation", Chem. Eur. J. 2017, 23 (67), 16966-16971