Negative to zero Poisson’s ratio adjustable UV-PDMS flexible metamaterials fabricated by using 3D photolithography
Mechanical metamaterials (MMs) exhibit mechanical characteristics that are challenging to achieve using existing isotropic materials. Due to their unique characteristics, MMs hold significant potential for applications in diverse fields such as space, architecture, and robotics. This study proposes...
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| Format: | Article |
| Language: | English |
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Elsevier
2025-04-01
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| Series: | Materials & Design |
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| Online Access: | http://www.sciencedirect.com/science/article/pii/S0264127525002254 |
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| author | Riku Ito Yuji Takata Yuya Tanaka Hiroshi Toshiyoshi Takaaki Suzuki |
| author_facet | Riku Ito Yuji Takata Yuya Tanaka Hiroshi Toshiyoshi Takaaki Suzuki |
| author_sort | Riku Ito |
| collection | DOAJ |
| description | Mechanical metamaterials (MMs) exhibit mechanical characteristics that are challenging to achieve using existing isotropic materials. Due to their unique characteristics, MMs hold significant potential for applications in diverse fields such as space, architecture, and robotics. This study proposes a method for processing and tuning the mechanical characteristics of MMs composed of UV-curable silicone rubber (UV-PDMS) submillimeter-sized thorough holes, specifically for integration into flexible microdevices. We focused on the microfabrication of polymeric materials with elastic limits and MMs regions, which have traditionally been difficult to achieve. Using 3D photolithography, UV-PDMS was successfully processed to incorporate submillimeter-sized through-holes. Furthermore, MMs with different linewidths were fabricated using from an identical mask pattern by only adjusting the UV incidence angle and exposure dose using 3D photolithography. The resulting flexible MMs exhibited tunable Poisson’s ratios within the range of −0.16 to −0.06. |
| format | Article |
| id | doaj-art-18649b481c1f4fec9d2c231bbb0139bc |
| institution | DOAJ |
| issn | 0264-1275 |
| language | English |
| publishDate | 2025-04-01 |
| publisher | Elsevier |
| record_format | Article |
| series | Materials & Design |
| spelling | doaj-art-18649b481c1f4fec9d2c231bbb0139bc2025-08-20T02:50:56ZengElsevierMaterials & Design0264-12752025-04-0125211380510.1016/j.matdes.2025.113805Negative to zero Poisson’s ratio adjustable UV-PDMS flexible metamaterials fabricated by using 3D photolithographyRiku Ito0Yuji Takata1Yuya Tanaka2Hiroshi Toshiyoshi3Takaaki Suzuki4Gunma University 1-5-1, Tenjin-cho, Kiryu Gunma 376-8515, JapanGunma University 1-5-1, Tenjin-cho, Kiryu Gunma 376-8515, JapanGunma University 1-5-1, Tenjin-cho, Kiryu Gunma 376-8515, JapanThe University of Tokyo 4-6-1, Komaba, Meguro-ku, Tokyo 153-8505, JapanGunma University 1-5-1, Tenjin-cho, Kiryu Gunma 376-8515, Japan; Corresponding author.Mechanical metamaterials (MMs) exhibit mechanical characteristics that are challenging to achieve using existing isotropic materials. Due to their unique characteristics, MMs hold significant potential for applications in diverse fields such as space, architecture, and robotics. This study proposes a method for processing and tuning the mechanical characteristics of MMs composed of UV-curable silicone rubber (UV-PDMS) submillimeter-sized thorough holes, specifically for integration into flexible microdevices. We focused on the microfabrication of polymeric materials with elastic limits and MMs regions, which have traditionally been difficult to achieve. Using 3D photolithography, UV-PDMS was successfully processed to incorporate submillimeter-sized through-holes. Furthermore, MMs with different linewidths were fabricated using from an identical mask pattern by only adjusting the UV incidence angle and exposure dose using 3D photolithography. The resulting flexible MMs exhibited tunable Poisson’s ratios within the range of −0.16 to −0.06.http://www.sciencedirect.com/science/article/pii/S0264127525002254Mechanical metamaterialsZero Poisson’s ratioNegative Poisson’s ratioPhotolithographyUV-PDMS3D photolithography |
| spellingShingle | Riku Ito Yuji Takata Yuya Tanaka Hiroshi Toshiyoshi Takaaki Suzuki Negative to zero Poisson’s ratio adjustable UV-PDMS flexible metamaterials fabricated by using 3D photolithography Materials & Design Mechanical metamaterials Zero Poisson’s ratio Negative Poisson’s ratio Photolithography UV-PDMS 3D photolithography |
| title | Negative to zero Poisson’s ratio adjustable UV-PDMS flexible metamaterials fabricated by using 3D photolithography |
| title_full | Negative to zero Poisson’s ratio adjustable UV-PDMS flexible metamaterials fabricated by using 3D photolithography |
| title_fullStr | Negative to zero Poisson’s ratio adjustable UV-PDMS flexible metamaterials fabricated by using 3D photolithography |
| title_full_unstemmed | Negative to zero Poisson’s ratio adjustable UV-PDMS flexible metamaterials fabricated by using 3D photolithography |
| title_short | Negative to zero Poisson’s ratio adjustable UV-PDMS flexible metamaterials fabricated by using 3D photolithography |
| title_sort | negative to zero poisson s ratio adjustable uv pdms flexible metamaterials fabricated by using 3d photolithography |
| topic | Mechanical metamaterials Zero Poisson’s ratio Negative Poisson’s ratio Photolithography UV-PDMS 3D photolithography |
| url | http://www.sciencedirect.com/science/article/pii/S0264127525002254 |
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