Shape memory polymer surfaces with controllable roughness for multiscale switchable dry adhesion
Abstract Switchable control of adhesion is an important feature of many desired applications such as robotic manipulation, medical adhesives, and scalable microassembly. We present the study of the switchable dry adhesion of a shape memory polymer surface comprising nanotips which is based on not on...
Saved in:
| Main Authors: | , , , , , , , , , |
|---|---|
| Format: | Article |
| Language: | English |
| Published: |
Nature Portfolio
2025-05-01
|
| Series: | Nature Communications |
| Online Access: | https://doi.org/10.1038/s41467-025-60220-7 |
| Tags: |
Add Tag
No Tags, Be the first to tag this record!
|
| _version_ | 1849687955493355520 |
|---|---|
| author | Junhyung Kim Seungbeom Kim Taehyun Yun Jeong Hyeon Kim ChangHee Son Yongseok Lee Keehoon Kim Han Eol Lee Namjung Kim Seok Kim |
| author_facet | Junhyung Kim Seungbeom Kim Taehyun Yun Jeong Hyeon Kim ChangHee Son Yongseok Lee Keehoon Kim Han Eol Lee Namjung Kim Seok Kim |
| author_sort | Junhyung Kim |
| collection | DOAJ |
| description | Abstract Switchable control of adhesion is an important feature of many desired applications such as robotic manipulation, medical adhesives, and scalable microassembly. We present the study of the switchable dry adhesion of a shape memory polymer surface comprising nanotips which is based on not only overcoming but also exploiting the adhesion paradox, i.e., controlling surface roughness via the shape memory effect. Here, densely packed sharp nanotips causing an initial high surface roughness are flattened upon heating, pressing and cooling to provide a low surface roughness leading to a strong adhesion. However, the flattened nanotips restore their original shape upon reheating to cause a high surface roughness back resulting in a weak adhesion with the adhesion switchability of more than three orders of magnitude. These switchable adhesion capabilities are demonstrated in a variety of applications ranging from macro-scale robotic pick-and-place and fabric adhesives to deterministic micro-scale device-grade silicon platelet transfer and microLED assembly. |
| format | Article |
| id | doaj-art-5e6a69aa74c94e7aa9cc4618b44d1ec6 |
| institution | DOAJ |
| issn | 2041-1723 |
| language | English |
| publishDate | 2025-05-01 |
| publisher | Nature Portfolio |
| record_format | Article |
| series | Nature Communications |
| spelling | doaj-art-5e6a69aa74c94e7aa9cc4618b44d1ec62025-08-20T03:22:11ZengNature PortfolioNature Communications2041-17232025-05-0116111310.1038/s41467-025-60220-7Shape memory polymer surfaces with controllable roughness for multiscale switchable dry adhesionJunhyung Kim0Seungbeom Kim1Taehyun Yun2Jeong Hyeon Kim3ChangHee Son4Yongseok Lee5Keehoon Kim6Han Eol Lee7Namjung Kim8Seok Kim9Department of Mechanical Engineering, Pohang University of Science and Technology (POSTECH)Department of Mechanical Engineering, Pohang University of Science and Technology (POSTECH)Department of Mechanical Engineering, Gachon UniversityDivision of Advanced Materials Engineering, Jeonbuk National UniversityDepartment of Biomedical Engineering and Institue of Materials Science, University of ConnecticutDepartment of Mechanical Engineering, Pohang University of Science and Technology (POSTECH)Department of Mechanical Engineering, Pohang University of Science and Technology (POSTECH)Division of Advanced Materials Engineering, Jeonbuk National UniversityDepartment of Mechanical Engineering, Gachon UniversityDepartment of Mechanical Engineering, Pohang University of Science and Technology (POSTECH)Abstract Switchable control of adhesion is an important feature of many desired applications such as robotic manipulation, medical adhesives, and scalable microassembly. We present the study of the switchable dry adhesion of a shape memory polymer surface comprising nanotips which is based on not only overcoming but also exploiting the adhesion paradox, i.e., controlling surface roughness via the shape memory effect. Here, densely packed sharp nanotips causing an initial high surface roughness are flattened upon heating, pressing and cooling to provide a low surface roughness leading to a strong adhesion. However, the flattened nanotips restore their original shape upon reheating to cause a high surface roughness back resulting in a weak adhesion with the adhesion switchability of more than three orders of magnitude. These switchable adhesion capabilities are demonstrated in a variety of applications ranging from macro-scale robotic pick-and-place and fabric adhesives to deterministic micro-scale device-grade silicon platelet transfer and microLED assembly.https://doi.org/10.1038/s41467-025-60220-7 |
| spellingShingle | Junhyung Kim Seungbeom Kim Taehyun Yun Jeong Hyeon Kim ChangHee Son Yongseok Lee Keehoon Kim Han Eol Lee Namjung Kim Seok Kim Shape memory polymer surfaces with controllable roughness for multiscale switchable dry adhesion Nature Communications |
| title | Shape memory polymer surfaces with controllable roughness for multiscale switchable dry adhesion |
| title_full | Shape memory polymer surfaces with controllable roughness for multiscale switchable dry adhesion |
| title_fullStr | Shape memory polymer surfaces with controllable roughness for multiscale switchable dry adhesion |
| title_full_unstemmed | Shape memory polymer surfaces with controllable roughness for multiscale switchable dry adhesion |
| title_short | Shape memory polymer surfaces with controllable roughness for multiscale switchable dry adhesion |
| title_sort | shape memory polymer surfaces with controllable roughness for multiscale switchable dry adhesion |
| url | https://doi.org/10.1038/s41467-025-60220-7 |
| work_keys_str_mv | AT junhyungkim shapememorypolymersurfaceswithcontrollableroughnessformultiscaleswitchabledryadhesion AT seungbeomkim shapememorypolymersurfaceswithcontrollableroughnessformultiscaleswitchabledryadhesion AT taehyunyun shapememorypolymersurfaceswithcontrollableroughnessformultiscaleswitchabledryadhesion AT jeonghyeonkim shapememorypolymersurfaceswithcontrollableroughnessformultiscaleswitchabledryadhesion AT changheeson shapememorypolymersurfaceswithcontrollableroughnessformultiscaleswitchabledryadhesion AT yongseoklee shapememorypolymersurfaceswithcontrollableroughnessformultiscaleswitchabledryadhesion AT keehoonkim shapememorypolymersurfaceswithcontrollableroughnessformultiscaleswitchabledryadhesion AT haneollee shapememorypolymersurfaceswithcontrollableroughnessformultiscaleswitchabledryadhesion AT namjungkim shapememorypolymersurfaceswithcontrollableroughnessformultiscaleswitchabledryadhesion AT seokkim shapememorypolymersurfaceswithcontrollableroughnessformultiscaleswitchabledryadhesion |