PUBLICATION
2025
17.
Sangyun Na†, Geonyoung Jung†, Yoojin Chang, Yun Goo Ro, Young-Ryul Kim, Cheolhong Park, Jeonghee Yeom, Jinyoung Kim, Yong-Jin Park, Hyejin Lee and Hyunhyub Ko*, “Minimal Water-induced Asymmetric MXene/Cellulose Nanochannels with Combined Ionic/Electronic Conductivity for Efficient Hydroelectric Power Generation”, Submitted (Patent filed)
16.
Seungho Lee†, Sangyun Na†, Yumi Cho†, Gaeun Park, Seung Hak Oh, Jaejun Kim, Byoung-Ki Cho, Sang Kyu Kwak*, Ja-Hyoung Ryu* and Hyunhyub Ko*, “Tunable and Recyclable Piezoelectric Biomaterials via Ion-Directed Guanine-Quadruplex Assembly”, Under revision
15.
Yoojin Chang†, Sangyun Na†, Yun Goo Ro†, Cheolhong Park, Seokhee Jeong, Yong-Jin Park, Min Sub Kwak, Jeeyoon Kim and Hyunhyub Ko*, “Robust Biodegradable Synapse with Sub-Biological Energy and Extended Memory for Intelligent Reflexive System”, Under revision
14.
Yun Goo Ro†, Sangyun Na†, Jeeyoon Kim†, Yoojin Chang†, Seunjae Lee, Min Sub Kwak, Seokhee Jeong and Hyunhyub Ko*, “Iontronics: Neuromorphic Sensing and Energy Harvesting”, ACS Nano, 2025, 19, 24425−24507
2024
13.
Yong-Jin Park, Min Sub Kwak, Yonggi Kim, Sangyun Na, Yoojin Chang, Young-Ryul Kim, Haryeong Cho, Seungjae Lee, Jae Joon Kim*, Hyunhyub Ko*, “Biodegradable, stretchable, and high-performance triboelectric nanogenerator through interfacial polarization in bilayer structure”, Nano Energy, 2024, 132, 110411
2023
12.
Yong-Jin Park, Yun Goo Ro, Young-Eun Shin, Cheolhong Park, Sangyun Na, Yoojin Chang, Hyunhyub Ko*, “Multi-Layered Triboelectric Nanogenerators with Controllable Multiple Spikes for Low-Power Artificial Synaptic Devices”, Adv. Sci., 2023, 10, 2304598.
11.
Hyejin Lee†, Dong-hee Kang†, Seungse Cho†, Young-Ryul Kim, Youngoh Lee, Sangyun Na, Haryeong Cho, Seungjae Lee, Geumseok Lim, Jeonghee Yeom, Hyunhyub Ko*, “Low-Voltage Stretchable Electroluminescent Loudspeakers with Synchronous Sound and Light Generation”, ACS Appl. Mater. Interfaces., 2023, 15, 16299.
10.
Jeonghee Yeom†, Ayoung Choe†, Jiyun Lee†, Jeeyoon Kim, Jinyoung Kim, Seung Hak Oh, Cheolhong Park, Sangyun Na, Young-Eun Shin, Youngoh Lee, Yun Goo Ro, Sang Kyu Kwak*, Hyunhyub Ko*, “Photosensitive ion channels in layered MXene membranes modified with plasmonic gold nanostars and cellulose nanofibers”, Nat. Commun., 2023, 14, 359.
9.
Sangyun Na†, Jeonghee Yeom†, Yoojin Chang†, Yeju Kwon, Cheolhong Park, Young-Eun Shin, Yong-Jin Park, and Hyunhyub Ko*, “Stretchable Skin Hydration Sensor based on hygroscopic and ion conductive polymer composites”, Chem. Eng. J, 2023, 455, 140957.
2022
8.
Sujoy Kumar Ghosh, Jinyoung Kim, Minsoo P Kim, Sangyun Na, Jeonghoon Cho, Jae Joon Kim, Hyunhyub Ko*, “Ferroelectricity-Coupled 2D-MXene-Based Hierarchically Designed High-Performance Stretchable Triboelectric Nanogenerator”, ACS nano, 2022, 16, 11415.
7.
Sujoy Kumar Ghosh, Minsoo P. Kim, Sangyun Na, Youngsu Lee, Jonghwa Park, Seungse Cho, Jeonghoon Cho, Jae Joon Kim, and Hyunhyub Ko*, “Ultra-stretchable yet tough, healable, and biodegradable triboelectric devices with microstructured and ionically crosslinked biogel”, Nano Energy, 2022, 100, 107438
2021
6.
Kijoo Eom†, Sangyun Na†, Joong-kwon Kim†, Hyunhyub Ko*, Jungho Jin*, Seok Ju Kang*, “Engineering crystal phase of Nylon-11 films for ferroelectric device and piezoelectric sensor ”, Nano Energy, 2021, 88, 106244.
5.
Sujoy Kumar Ghosh, Jonghwa Park, Sangyun Na, Minsoo P. Kim, and Hyunhyub Ko*, “A Fully Biodegradable Ferroelectric Skin Sensor from Edible Porcine Skin Gelatine”, Adv. Sci., 2021, 8, 2005010.
2020
4.
Yoojeong Park, Young-Eun Shin, Jonghwa Park, Youngsu Lee, Minsoo P. Kim, Young-Ryul Kim, Sangyun Na, Sujoy Kumar Ghosh, and Hyunhyub Ko*, “Ferroelectric Multilayer Nanocomposites with Polarization and Stress Concentration Structures for Enhanced Triboelectric Performances”, ACS Nano, 2020, 14, 7101-7110.
3.
Jeonghee Yeom, Ayoung Choe, Seongdong Lim, Youngsu Lee, Sangyun Na, and Hyunhyub Ko*, “Soft and ion-conducting hydrogel artificial tongue for astringency perception“, Sci. Adv., 2020, 6, eaba5785. (Press highlight in Hankyoreh, Kyunghyang, Newsis, Medical Today, Ulsan daily news, Gukjenews, Busan ilbo, Edaily, Chosun etc.).
2.
Nguyen Dien Kha Tu, Jaehyun Park, Sangyun Na, KwangMin Kim, Tae-Hyuk Kwon, Hyunhyub Ko*, SeokJu Kang*, “Co-solvent induced piezoelectric γ-phase nylon-11 separator for sodium metal battery“, Nano Energy, 2020, 70, 104501.
2018
1.
Minjeong Ha, Seongdong Lim, Soowon Cho, Youngoh Lee, Sangyun Na, Chunggi Baig,* and Hyunhyub Ko* “Skin-Inspired Hierarchical Polymer Architectures with Gradient Stiffness for Spacer-Free, Ultrathin, and Highly-Sensitive Triboelectric Sensors”, ACS Nano, 2018, 12, 3964-3974. (News in Nano werk)