3 articles published in JoVE
Demonstration of a Hyperlens-integrated Microscope and Super-resolution Imaging Dasol Lee*1, Minkyung Kim*1, Sunae So*1, Inki Kim1, Gwanho Yoon1, Kyunghoon Kim2, Junsuk Rho1,3 1Department of Mechanical Engineering, Pohang University of Science and Technology (POSTECH), 2School of Mechanical Engineering, Sungkyunkwan University, 3Department of Chemical Engineering, Pohang University of Science and Technology (POSTECH) The use of a hyperlens has been regarded as a novel super-resolution imaging technique due to its advantages in real-time imaging and its simple implementation with conventional optics. Here, we present a protocol describing the fabrication and imaging applications of a spherical hyperlens.
Measurement of Outgassing Rates of Steels Chongdo Park1, Se-Hyun Kim1, Sanghoon Ki1, Taekyun Ha1, Boklae Cho2 1Accelerator Division, Pohang Accelerator Laboratory, POSTECH, 2Center for Advanced Instrumentation, Korea Research Institute of Standards and Science A protocol for the measurement of outgassing rates of hydrogen from ordinary steel vacuum chambers using the rate-of-pressure rise method is presented.
Synthesis of Poly(N-isopropylacrylamide) Janus Microhydrogels for Anisotropic Thermo-responsiveness and Organophilic/Hydrophilic Loading Capability Kyoung Duck Seo1, Andrew Choi1, Junsang Doh1,2, Dong Sung Kim1 1Department of Mechanical Engineering, Pohang University of Science and Technology (POSTECH), 2School of Interdisciplinary Bioscience and Bioengineering (I-Bio), Pohang University of Science and Technology (POSTECH) We present a protocol to synthesize Janus microhydrogels composed entirely of the same base material, poly(N-isopropylacrylamide) (PNIPAAm), with a clearly compartmentalized structure base on the phase separation of a supersaturated NIPAAm monomer solution. The synthesized Janus microhydrogels show unique properties such as anisotropic thermo-responsiveness and organophilic/hydrophilic loading capability.