Ratchapol Jenjob was born and raised in Surin in the north-eastern part in Thailand. He was heading to Mahidol University to obtain my BS in Chemistry. In the last year of his undergraduate studies, he became interested in polymer colloids. Therefore, he pursued a Ph.D. study in Polymer Science and Technology at Mahidol University from 2008 to 2012 under supervision of Dr. Panya Sunintaboon. During his Ph.D studies, he focused on the synthesis of core-shell nanoparticles using various amino-containing polymers for enzyme immobilization. After Ph.D graduation, Ratchapol moved to South Korea to work at Utah-Inha DDS & Advanced Therapeutics Research Center as a postdoctoral fellow in 2013. He developed biocompatible contrast agents for Magnetic Resonance Imaging (MRI). In 2014-2015, he joined Dr. Su-Geun Yang’s group at Inha Hospital, South Korea, where he learnt about cell and animal experiments as well as prepared nanomaterials for drug delivery application. Ratchapol joined the COOL laboratory at VISTEC, where he is excited to work on hierarchical nanomaterials.