Professor Hong participated in the 6th International Conference from Nanoparticles and Nanomaterials to Nanodevices and Nanosystems (6th IC4N), 2019. Following the resounding success of the five previous conferences, IC4N-2019 was held in the beautiful island of Corfu (Kerkyra), Greece from June 30-July 3rd, 2019. This year's Opening Plenary Lecture was given by Sir Fraser Stoddart 2016 Nobel Laureate in Chemistry. Professor Hong gave a talk on "Materials Imaging Initiative: A New Paradigm for Functional Materials".