Januar Widakdo is a lecturer in the Physics Department at the University of Indonesia. he was a Postdoctoral Researcher at the National Taiwan University of Science and Technology. from 2021 to 2023. He was also a Postdoc at UGM for one year from 2022 to 2023. He received his Ph.D. in Applied Science and Technology in 2021 from the National Taiwan University of Science and Technology. He also obtained a Master's in Physics 2017 from Gadjah Mada University. He has been a researcher at the Advanced Membrane Materials Research Center at the National Taiwan University of Science and Technology since 2018. His current research is related to Self-Assembling Smart and Electrically Responsive Membranes for Controlled Gas Separation. His research interests are nanotechnology, magnetic nanoparticles, and membrane technology.