Publications
2026
Microrobotic copper-rich electrochemical interfacing for targeted cancer theranostics in the gut
Junghwan Byun, Siyeon Jang, Yingdan Wu, Jiwoong Choi, Ugur Bozuyuk, Junghyeon Ko, Alp Can Karacakol, Eun Hye Kim, Sungwoo Chun, Amirreza Aghakhani, Seungjun Chung, Jiachen Zhang, Yoosoo Yang, Metin Sitti
Science Advances 12 (11), eaeb5934
Mechanoreceptor-inspired multisensory fibers for artificial somatosensation
S. Jeon, J. Lee, J. Won, K. Bak, K. Kim, S. Chun, S. Park
npj Flexible Electronics, in press
2025
Predicting human tactile smoothness/roughness perception from multidimensional mechanical properties of synthetic fibers using machine learning
H. T. Lee, J. Y. Kim, K. Bak, K. Kim, S. Chun, H. J. Hwang
Scientific Reports 15 (1), 42345
Fully stretchable hydrovoltaic cells based on winding-locked double-helical carbon nanotube fibers
Wonkyeong Son, Jae Myeong Lee, Hyunji Seo, Gyu Hyeon Song, Seon Jeong Kim, Sooncheol Kwon, Sung Beom Cho, Sungwoo Chun, Shi Hyeong Kim, Changsoon Choi
npj Flexible Electronics 9 (1), 116
Leveraging Inter‐Bundle Anchoring Effect to Induce Static and Dynamic Twist‐Stability in Multifunctional Carbon Nanotube Coiled Yarn Hydro‐Actuators
Jae Myeong Lee, Gichan Jeon, Wonkyeong Son, Sungwoo Chun, Duri Han, Hocheol Gwac, Jae Won Kim, Hyeon Jun Sim, Young‐Kwan Kim, Ji Eun Park, Jungjin Park, Yung‐Eun Sung, Seon Jeong Kim, Changsoon Choi
Advanced Functional Materials 35 (30), 2412397
2024
Stiffness-tunable velvet worm–inspired soft adhesive robot
Hyeongho Min, Daebeom Bae, Siyeon Jang, Sangmin Lee, Myungjin Park, Cem Balda Dayan, Jiwoong Choi, Keungyonh Bak, Yoosoo Yang, Sungwoo Chun, Metin Sitti
Science Advances 10 (47), eadp8260
Classification of Human Tactile Perception Using Vibration Data
H. T. Lee, K. Bak, S. Chun, H. J. Hwang
2024 International Conference on Cyberworlds (CW), 183-186
Design of Planar Permanent Magnet Array for Remotely Actuated Magnetic Micro Robots
U. S. Kang, C. S. Ha, S. H. Lee, J. H. Kim, S. Chun, D. Son
Journal of Magnetics 29 (3), 284-290
Double‐Helical Carbon Nanotube‐Wrapped Elastomeric Mandrel for Electrical Shortage‐Free, One‐Body Multifunctional Fiber Systems
Wonkyeong Son, Jae Myeong Lee, Jin Hyeong Choi, Juwan Kim, Junho Noh, Myoungeun Oh, Hyeon Jun Sim, Chang Kyu Jeong, Sungwoo Chun, Seon Jeong Kim, Changsoon Choi
Advanced Functional Materials 34 (30), 2312033
2023
Hierarchically plied mechano-electrochemical energy harvesting using a scalable kinematic sensing textile woven from a graphene-coated commercial cotton yarn
J. Kim, J. H. Noh, S. Chun, S. J. Kim, H. J. Sim, C. Choi
Nano Letters 23 (16), 7623-7632
Enhanced hydro-actuation and capacitance of electrochemically inner-bundle-activated carbon nanotube yarns
W. Son, J. M. Lee, S. Chun, S. Yu, J. H. Noh, H. W. Kim, S. B. Cho, S. J. Kim, C. Choi
ACS Applied Materials & Interfaces 15 (10), 13484-13494
PdO-nanoparticle-embedded carbon nanotube yarns for wearable hydrogen gas sensing platforms with fast and sensitive responses
Wonkyeong Son, Duck Weon Lee, Young Kwang Kim, Sungwoo Chun, Jae Myeong Lee, Jin Hyeong Choi, Woo Sub Shim, Dongseok Suh, Sang Kyoo Lim, Changsoon Choi
ACS Sensors 8 (1), 94-102
2022
Conformably skin-adherent piezoelectric patch with bioinspired hierarchically arrayed microsuckers enables physical energy amplification
Da Wan Kim, Hyunseung Kim, Geon-Tae Hwang, Sung Beom Cho, Seung Hwan Jeon, Hyeon Woo Kim, Chang Kyu Jeong, Sungwoo Chun, Changhyun Pang
ACS Energy Letters 7 (5), 1820-1827
A tissue adhesion‐controllable and biocompatible small‐scale hydrogel adhesive robot
Y. W. Lee, S. Chun, D. Son, X. Hu, M. Schneider, M. Sitti
Advanced Materials 34 (13), 2109325
Tactile perception system and method of building a database thereof
S. Chun, W. Park
US Patent 11,288,501
High-power hydro-actuators fabricated from biomimetic carbon nanotube coiled yarns with fast electrothermal recovery
W. Son, J. M. Lee, S. H. Kim, H. W. Kim, S. B. Cho, D. Suh, S. Chun, C. Choi
Nano Letters 22 (6), 2470-2478
Twist-stabilized, coiled carbon nanotube yarns with enhanced capacitance
Wonkyeong Son, Sungwoo Chun, Jae Myeong Lee, Gichan Jeon, Hyeon Jun Sim, Hyeon Woo Kim, Sung Beom Cho, Dongyun Lee, Junyoung Park, Joonhyeon Jeon, Dongseok Suh, Changsoon Choi
ACS Nano 16 (2), 2661-2671
2021
Graphene structure and method for manufacturing graphene having wrinkle pattern
W. Park, S. Chun
US Patent 11,198,612
3D printing of elastomeric bioinspired complex adhesive microstructures
Cem Balda Dayan, Sungwoo Chun, Nagaraj Krishna‐Subbaiah, Dirk‐Michael Drotlef, Mukrime Birgul Akolpoglu, Metin Sitti
Advanced Materials 33 (40), 2103826
Uniform pressure responses for nanomaterials-based biological on-skin flexible pressure sensor array
J. S. Kim, Y. So, S. Lee, C. Pang, W. Park, S. Chun
Carbon 181, 169-176
Conductive structure, method of manufacturing the same, touch sensor including the conductive structure, method of manufacturing the touch sensor, and touch sensing method
W. Park, S. Chun
US Patent 11,099,669
DNA-inspired, highly packed supercoil battery for ultra-high stretchability and capacity
Jae Myeong Lee, Sungwoo Chun, Wonkyeong Son, Dongseok Suh, Shi Hyeong Kim, Hyun Kim, Dongyun Lee, Younghoon Kim, Young-Kwan Kim, Sang Kyoo Lim, Changsoon Choi
Nano Energy 85, 106034
A hierarchically tailored wrinkled three-dimensional foam for enhanced elastic supercapacitor electrodes
S. Jang, H. Min, S. B. Cho, H. W. Kim, W. Son, C. Choi, S. Chun, C. Pang
Nano Letters 21 (16), 7079-7085
An artificial neural tactile sensing system
Sungwoo Chun, Jong-Seok Kim, Yongsang Yoo, Youngin Choi, Sung Jun Jung, Dongpyo Jang, Gwangyeob Lee, Kang-Il Song, Kum Seok Nam, Inchan Youn, Donghee Son, Changhyun Pang, Yong Jeong, Hachul Jung, Young-Jin Kim, Byong-Deok Choi, Jaehun Kim, Sung-Phil Kim, Wanjun Park, Seongjun Park
Nature Electronics 4 (6), 429-438
2020
A Hierarchical 3D Graphene Nanocomposite Foam for Extremely Tough, Non‐Wettable, and Elastic Conductor
S. Chun, S. Bang, S. Jang, D. W. Kim, S. Lee, W. Park, C. Pang
Advanced Materials Interfaces 7 (14), 2000354
Intrinsically strain‐insensitive, hyperelastic temperature‐sensing fiber with compressed micro‐wrinkles for integrated textronics
J. Lee, D. W. Kim, S. Chun, J. H. Song, E. S. Yoo, J. K. Kim, C. Pang
Advanced Materials Technologies 5 (5), 2000073
Highly air/water-permeable hierarchical mesh architectures for stretchable underwater electronic skin patches
H. Min, S. Jang, D. W. Kim, J. Kim, S. Baik, S. Chun, C. Pang
ACS Applied Materials & Interfaces 12 (12), 14425-14432
Serpentine-pattern effects on the biaxial stretching of percolative graphene nanoflake films
S. Chun, S. B. Cho, W. Son, Y. Kim, H. Jung, Y. J. Kim, C. Choi
Nanotechnology 31 (8), 085303
Triboelectric Energy: A Micropillar‐Assisted Versatile Strategy for Highly Sensitive and Efficient Triboelectric Energy Generation under In‐Plane Stimuli (Adv. Mater. 2/2020)
S. Chun, C. Pang, S. B. Cho
Advanced Materials 32 (2), 2070009
A micropillar‐assisted versatile strategy for highly sensitive and efficient triboelectric energy generation under in‐plane stimuli
S. Chun, C. Pang, S. B. Cho
Advanced Materials 32 (2), 1905539
2019
A Highly Efficient Absorbent for Various Organic Solvents Using Hydrophobic Graphene–Sponge Composite
S. Chun, K. B. Kim, S. Lee, K. T. Kim, W. Park
Journal of Nanoscience and Nanotechnology 19 (10), 6675-6681
A transparent, glue-free, skin-attachable graphene pressure sensor with micropillars for skin-elasticity measurement
S. Chun, D. W. Kim, J. Kim, C. Pang
Nanotechnology 30 (33), 335501
High-output and bending-tolerant triboelectric nanogenerator based on an interlocked array of surface-functionalized indium tin oxide nanohelixes
S. Chun, I. Y. Choi, W. Son, J. Jung, S. Lee, H. S. Kim, C. Pang, W. Park, J. K. Kim
ACS Energy Letters 4 (7), 1748-1754
Graphene touch sensor, method for operating same, and method for manufacturing same
W. Park, S. Chun
US Patent 10,289,230
Water-resistant and skin-adhesive wearable electronics using graphene fabric sensor with octopus-inspired microsuckers
Sungwoo Chun, Wonkyeong Son, Da Wan Kim, Jihyun Lee, Hyeongho Min, Hachul Jung, Dahye Kwon, A-Hee Kim, Young-Jin Kim, Sang Kyoo Lim, Changhyun Pang, Changsoon Choi
ACS Applied Materials & Interfaces 11 (18), 16951-16957
Self-powered pressure-and vibration-sensitive tactile sensors for learning technique-based neural finger skin
S. Chun, W. Son, H. Kim, S. K. Lim, C. Pang, C. Choi
Nano Letters 19 (5), 3305-3312
Carbon-based, ultraelastic, hierarchically coated fiber strain sensors with crack-controllable beads
S. Jang, J. Kim, D. W. Kim, J. W. Kim, S. Chun, H. J. Lee, G. R. Yi, C. Pang
ACS Applied Materials & Interfaces 11 (16), 15079-15087
Bioinspired hairy skin electronics for detecting the direction and incident angle of airflow
Sungwoo Chun, Wonkyeong Son, Changsoon Choi, Hyeongho Min, Jiwon Kim, Heon Joon Lee, Dongjin Kim, Changhwan Kim, Je-sung Koh, Changhyun Pang
ACS Applied Materials & Interfaces 11 (14), 13608-13615
Biomimetics: Highly Permeable Skin Patch with Conductive Hierarchical Architectures Inspired by Amphibians and Octopi for Omnidirectionally Enhanced Wet Adhesion (Adv. Funct. Mater.)
D. W. Kim, S. Baik, H. Min, S. Chun, H. J. Lee, K. H. Kim, J. Y. Lee, C. Pang
Advanced Functional Materials 29 (13), 1970080
Highly permeable skin patch with conductive hierarchical architectures inspired by amphibians and octopi for omnidirectionally enhanced wet adhesion
D. W. Kim, S. Baik, H. Min, S. Chun, H. J. Lee, K. H. Kim, J. Y. Lee, C. Pang
Advanced Functional Materials 29 (13), 1807614
A flexible graphene–polydimethylsiloxane nanocomposite force sensor with linear response across a wide pressure detection range
S. Bang, J. Lim, S. Chun, W. Park
Journal of Nanoscience and Nanotechnology 19 (3), 1630-1634
A stretchable graphene thin-film sensor for detecting all of lateral and vertical strains
S. Chun, W. Son, W. Park
Journal of Nanoscience and Nanotechnology 19 (3), 1585-1591
Single-layer graphene-based transparent and flexible multifunctional electronics for self-charging power and touch-sensing systems
S. Chun, W. Son, G. Lee, S. H. Kim, J. W. Park, S. J. Kim, C. Pang, C. Choi
ACS Applied Materials & Interfaces 11 (9), 9301-9308
Highly twisted supercoils for superelastic multi-functional fibres
Wonkyeong Son, Sungwoo Chun, Jae Myeong Lee, Yourack Lee, Jeongmin Park, Dongseok Suh, Duck Weon Lee, Hachul Jung, Young-Jin Kim, Younghoon Kim, Soon Moon Jeong, Sang Kyoo Lim, Changsoon Choi
Nature Communications 10 (1), 426
2018
Biomimetics: Conductive and Stretchable Adhesive Electronics with Miniaturized Octopus‐Like Suckers against Dry/Wet Skin for Biosignal Monitoring (Adv. Funct. Mater. 52/2018)
S. Chun, D. W. Kim, S. Baik, H. J. Lee, J. H. Lee, S. H. Bhang, C. Pang
Advanced Functional Materials 28 (52), 1870372
Conductive and stretchable adhesive electronics with miniaturized octopus‐like suckers against dry/wet skin for biosignal monitoring
S. Chun, D. W. Kim, S. Baik, H. J. Lee, J. H. Lee, S. H. Bhang, C. Pang
Advanced Functional Materials 28 (52), 1805224
Flexible pressure sensors using highly-oriented and free-standing carbon nanotube sheets
S. Chun, W. Son, C. Choi
Carbon 139, 586-592
Force Sensors: A Highly Sensitive Force Sensor with Fast Response Based on Interlocked Arrays of Indium Tin Oxide Nanosprings toward Human Tactile Perception (Adv. Funct. Mater.)
S. Chun, I. Y. Choi, W. Son, G. Y. Bae, E. J. Lee, H. Kwon, J. Jung, H. S. Kim, et al.
Advanced Functional Materials 28 (42)
A highly sensitive force sensor with fast response based on interlocked arrays of indium tin oxide nanosprings toward human tactile perception
Sungwoo Chun, Il Yong Choi, Wonkyeong Son, Gi Yoon Bae, Eun Jae Lee, Hyunah Kwon, Jaimyun Jung, Hyoung Seop Kim, Jong Kyu Kim, Wanjun Park
Advanced Functional Materials 28 (42), 1804132
Recognition, classification, and prediction of the tactile sense
S. Chun, I. Hwang, W. Son, J. H. Chang, W. Park
Nanoscale 10 (22), 10545-10553
2017
All-graphene strain sensor on soft substrate
S. Chun, Y. Choi, W. Park
Carbon 116, 753-759
A tactile sensor using single layer graphene for surface texture recognition
S. Chun, Y. Choi, D. I. Suh, G. Y. Bae, S. Hyun, W. Park
Nanoscale 9 (29), 10248-10255
2016
Enhancing the quality of transferred single-layer graphene with poly (4-vinylphenol) interlayer on flexible substrates
Y. Choi, S. Chun, A. Hong, C. Ha, and W. Park
Japanese Journal of Applied Physics, 55 (6), 060305
Optical and Electrical Characteristics of Graphene Double Layer Formed by a Double Transfer of Graphene Single Layers
Y. J. Kim, G. Y. Bae, S. Chun, and W. Park
Journal of Nanoscience and Nanotechnology, 16 (3), 2769-2772
Touch stimulated pulse generation in biomimetic single-layer graphene
O. Sul, H. Chun, E. Choi, J. Choi, K. Cho, D. Jang, S. Chun, W. Park, and S. B. Lee
Nanoscale, 8 (6), 3425-3431
A tactile sensor using a conductive graphene-sponge composite
S. Chun, A. Hong, Y. Choi, C. Ha, and W. Park
Nanoscale, 8 (17), 9185-9192
2015
A tactile sensor using a graphene film formed by the reduced graphene oxide flakes and its detection of surface morphology
S. Chun, H. Jung, Y. Choi, G. Bae, J. P. Kil, and W. Park
Carbon, 94, 982-987
Fabrication of a flexible graphene pressure sensor
H. Jung, S. Chun, Y. Kim, H. S. Oh, G. Y. Bae, G. Bae, and W. Park
Journal of Nanoscience and Nanotechnology, 15 (11), 9020-9024
A highly sensitive pressure sensor using a double-layered graphene structure for tactile sensing
S. Chun, Y. Kim, H. S. Oh, G. Bae, and W. Park
Nanoscale, 7 (27), 11652-11659
High‐Density Physical Random Number Generator Using Spin Signals in Multidomain Ferromagnetic Layer
S. Chun, S. B. Lee, M. Hara, W. Park, and S. J. Kim
Advances in Condensed Matter Physics, 2015 (1), 251819
2014
A graphene force sensor with pressure-amplifying structure
S. Chun, Y. Kim, H. Jin, E. Choi, S. B. Lee, and W. Park
Carbon, 78, 601-608
A flexible graphene touch sensor in the general human touch range
S. Chun, Y. Kim, H. Jung, and W. Park
Applied Physics Letters, 105 (4)
Highly Sensitive and Transparent Touch Sensor by a Double Structure of Single Layer Graphene
Y. Kim, H. Jung, H. Jin, S. Chun, and W. Park
Proceedings of the Korean Vacuum Society Conference, 228.2-228.2
Highly Sensitive and Transparent Pressure Sensor Using Double Layer Graphene Transferred onto Flexible Substrate
S. Chun, Y. Kim, H. Jin, H. Jung, and W. Park
Proceedings of the Korean Vacuum Society Conference, 229.2-229.2
2012
Fabrication of on-chip fluidic channels incorporating nanopores using self-aligned double layer resist processing technique
B. Kim, J. Kwon, D. Kim, S. Chun, H. Lee, and S. B. Lee
Journal of Vacuum Science & Technology B, 30 (6)
Negative electron-beam resist hard mask ion beam etching process for the fabrication of nanoscale magnetic tunnel junctions
S. W. Chun, D. Kim, J. Kwon, B. Kim, H. Lee, and S. B. Lee
Journal of Vacuum Science & Technology B, 30 (6), 06FA01
Multi-step ion beam etching of sub-30 nm magnetic tunnel junctions for reducing leakage and MgO barrier damage
S. Chun, D. Kim, J. Kwon, B. Kim, S. Choi, and S. B. Lee
Journal of Applied Physics, 111 (7)
2011
Fabrication of a flexible and transparent touch sensor using single-walled carbon nanotube thin-films
E. Choi, J. Kim, S. Chun, A. Kim, K. Lee, M. Jeong, C. Lim, T. Isoshima, M. Hara, and S. B. Lee
Journal of Nanoscience and Nanotechnology, 11 (7), 5845-5849
Effective reduction of leakage currents in single-walled carbon-nanotube-network thin-film transistors
M. Jeong, E. Choi, G. Lee, J. Kim, A. Kim, S. Chun, C. Lim, and S. B. Lee
Journal of the Korean Physical Society, 1522-1526
Ion beam etching of sub-30nm scale Magnetic Tunnel Junction for minimizing sidewall leakage path
D. H. Kim, B. H. Kim, S. W. Chun, J. H. Kwon, S. J. Choi, and S. B. Lee
Proceedings of the Korean Magnetics Society Conference, 29-30
Resist Trimming Technique in Oxygen Plasma for Sub-30nm Pillar Array
B. H. Kim, D. H. Kim, J. H. Kwon, S. W. Chun, S. J. Choi, and S. B. Lee
Proceedings of the Korean Magnetics Society Conference, 59-61
Recognition, classification and prediction of tactile sense
S. Chun, I. Hwang, W. Son, J. H. Chang, and W. Park
Supplementary Information (Research Output)