https://scholar.dgist.ac.kr/handle/20.500.11750/56594 2026-04-04T22:08:48Z 2026-04-04T22:08:48Z Chen, Zhengkun Chen, Jiafan Jung, Sohyun Kim, Ho-Young Lo Preti, Matteo Laschi, Cecilia Ren, Ziyu Sitti, Metin Full, Robert J. Yang, Guang-Zhong https://scholar.dgist.ac.kr/handle/20.500.11750/58290 2025-12-18T02:42:01Z 2025-03-31T15:00:00Z

Title: Bioinspired and biohybrid soft robots: Principles and emerging technologies Author(s): Chen, Zhengkun; Chen, Jiafan; Jung, Sohyun; Kim, Ho-Young; Lo Preti, Matteo; Laschi, Cecilia; Ren, Ziyu; Sitti, Metin; Full, Robert J.; Yang, Guang-Zhong Abstract: Soft robots have drawn increasing attention due to their inherent flexibility, deformability, and adaptability. The natural world, with its evolutionary refinement, presents the best source of inspiration for building soft robots. Creatures with sophisticated soft bodies and delicate mechanisms can be ideal biological models. This perspective focuses on bioinspired and biohybrid soft robots, providing a comprehensive review of the latest research in this area. We introduce the state-of-the-art principles of soft robots according to actuation, material selection, and sensing techniques. Based on biological classification methods used in nature, current research progress on biomimetic soft robots in animals, plants, and microorganisms is described. Emerging areas of interests are also highlighted for different biological species. Additionally, this paper explores the potential application areas of soft robots across various domains, outlining future challenges and ongoing developments. © 2025

2025-03-31T15:00:00Z Jung, Yeonsu Jung, Sohyun Lee, Sang-im Kim, Wonjung Kim, Ho-Young https://scholar.dgist.ac.kr/handle/20.500.11750/12950 2025-07-25T02:34:53Z 2020-12-31T15:00:00Z

Title: Avian mud nest architecture by self-secreted saliva Author(s): Jung, Yeonsu; Jung, Sohyun; Lee, Sang-im; Kim, Wonjung; Kim, Ho-Young Abstract: Mud nests built by swallows (Hirundinidae) and phoebes (Sayornis) are stable granular piles attached to cliffs, walls, or ceilings. Although these birds have been observed to mix saliva with incohesive mud granules, how such biopolymer solutions provide the nest with sufficient strength to support the weight of the residents as well as its own remains elusive. Here, we elucidate the mechanism of strong granular cohesion by the viscoelastic paste of bird saliva through a combination of theoretical analysis and experimental measurements in both natural and artificial nests. Our mathematical model considering the mechanics of mud nest construction allows us to explain the biological observation that all mud-nesting bird species should be lightweight. © 2021 National Academy of Sciences. All rights reserved.

2020-12-31T15:00:00Z