RESEARCH
Biofluiddynamics Drops Bubbles Soft Matter NanofabricationSoft Matter
Botanical movements
Related publications
1. W. Jung, W. Kim, and H.-Y. Kim, “Self-burial mechanics of hygroscopically responsive awns,”
Integrative and Comparative Biology 54, 1034–1042 (2014)
2. W. Jung, S. M. Choi, W. Kim, and H.-Y. Kim, “Reduction of granular drag inspired by self-burrowing rotary seeds,”
Physics of Fluids 29, 041702 (2017)
3. B. Shin, J. Ha, M. Lee, K. Park, G. H. Park, T. H. Choi, K.-J. Cho, and H.-Y. Kim, “Hygrobot: A self-locomotive ratcheted actuator powered by environmental humidity,”
Science Robotics 3, eaar2629 (2018)
4. J. Ha, S. M. Choi, B. Shin, M. Lee, W. Jung, and H.-Y. Kim, “Hygroresponsive coiling of seed awns and soft actuators,”
Extreme Mechanics Letters 38, 100746 (2020)
5. H. Na, Y.-W. Kang, C. S. Park, S. Jung, H.-Y. Kim, and J.-Y. Sun, “Hydrogel-based strong and fast actuators by electroosmotic turgor pressure,”
Science 376, 301-307 (2022)
6. B. Shin, Y. Jung, M. Choi, and H.-Y. Kim, “Thermodynamics of hygroresponsive soft engines: cycle analysis and work ratio,”
Physical Review Applied 18, 044061 (2022)
7. K. Park, J. Ha, B. Shin, and H.-Y. Kim, “Hygroresponsive movements of plants and soft actuators,”
Soft Matter in Plants: From Biophysics to Biomimetics. Royal Society of Chemistry., pp. 227-240 (2023)
8. C. J. Park, J. Ha, H.-R. Lee, K. Park, J.-Y. Sun, and H.-Y. Kim, “Plant cell-like tip-growing polymer precipitate with structurally embedded multistimuli sensing ability,”
Proceedings of the National Academy of Sciences 120, e2211416120 (2023)
Hygrobot, a self-locomotive actuator powered by environmental humidity: Ref. 3
Elastocapillary coalescence of plates and pillars
When a paintbrush is dipped into a bucket of paint and pulled out, surface tension forces cause the individual hairs in the brush to coalesce which simultaneously becomes impregnated with paint. We study such elastocapillary interactions by conducting simple experiments and solving free-boundary problems.
Related publications
1. D. Vella, H.-Y. Kim, and L. Mahadevan, "The wall-induced motion of a floating flexible train," Journal of Fluid Mechanics 502, 89-98 (2004)
2. H.-Y. Kim and L. Mahadevan, "Capillary rise between elastic sheets," Journal of Fluid Mechanics 548, 141-150 (2006)
3. H.-M. Kwon, H.-Y. Kim, J. Puell, and L. Mahadevan, "Equilibrium of an elastically confined liquid drop," Journal of Applied Physics 103, 093519 (2008)
4. K. J. Park and H.-Y. Kim, "Bending of floating flexible legs," Journal of Fluid Mechanics 610, 381-390 (2008)
5. Z. Wei, T. M. Schneider, J. Kim, H.-Y. Kim, J. Aizenberg, and L. Mahadevan, "Elastocapillary coalescence of plates and pillars," Proceedings of the Royal Society A 471, 20140593 (2015)
6. T.-H. Kim, J. Kim, and H.-Y. Kim, "Evaporation-driven clustering of microscale pillars and lamellae," Physics of Fluids 28, 022003 (2016)
Elastocapillary coalescence of lamellae due to evaporation: Ref. 6
Poro-elasto-capillarity
Related publications
1. M. Lee, S. Kim, H.-Y. Kim, and L. Mahadevan, "Bending and buckling of wet paper," Physics of Fluids 28, 042101 (2016)
2. J. Kim, J. Ha, and H.-Y. Kim, "Capillary rise of non-aqueous liquids in cellulose sponges," Journal of Fluid Mechanics 818, R2 (2017)
3. J. Ha, J. Kim, Y. Jung, G. Yun, D.-N. Kim, and H.-Y. Kim, "Poro-elasto-capillary wicking of cellulose sponges," Science Advances 4, eaao7051 (2018)
4. J. Ha and H.-Y. Kim, "Capillarity in soft porous solids," Annual Review of Fluid Mechanics 52, 263-284 (2020)
5. J. Kim, M.-W. Moon, and H.-Y. Kim, "Capillary rise in superhydrophilic rough channels," Physics of Fluids 32, 032105 (2020)
6. J. Choi, W. Kim, and H.-Y. Kim, "Crack density in bloodstains," Soft Matter 16, 5571-5576 (2020)
7. S. Jung, W. Kim, and H.-Y. Kim, "Dynamics of directional soluble wicking," Journal of Fluid Mechanics 915, A58 (2021)
Poro-elasto-capillary wicking of cellulose sponges: Ref. 2
Entomimetic soft robots
Related publications
1. Y. Lee, W. J. Song, Y. Jung, H. Yoo, M.-Y. Kim, H.-Y. Kim, and J.-Y. Sun, "Ionic spiderwebs," Science Robotics 15, eeez5405 (2020)
2. S. Ku, J. Myeong, H.-Y. Kim, and Y.-L. Park, "Delicate fabric handling using a soft robotic gripper with embedded microneedles," IEEE Robotics and Automation Letters 5, 4852-4858 (2020)
Cover of the July issue of Science Robotics (2020): Ref. 1
Granular materials
Related publications
1. Y. Jung, S. Jung, S.-I. Lee, W. Kim, and H.-Y. Kim, "Avian mud nest architecture by self-secreted saliva," Proceedings of the National Academy of Sciences of the United States of America 118, e2018509118 (2021)
2. K. Son, J.-Y. Sun, and H.-Y. Kim, "Agile reversible shape-morphing of particle rafts," Soft Matter 17, 7554-7564 (2021)
Back Scatter, March issue of Physics Today (2022): Ref. 2
Soft sensors
Related publications
1. W. J. Song, Y. Lee, Y. Jung, Y.-W. Kang, J. Kim, J.-M. Park, Y.-L. Park, H.-Y. Kim, and J.-Y. Sun, "Soft artificial electroreceptors for noncontact spatial perception," Science Advances 7, eabg9203 (2021)