Bio-inspired antimicrobial surfaces fabricated by glancing angle deposition
Abstract This paper describes the fabrication of cicada-wing-inspired antimicrobial surfaces using Glancing Angle Deposition (GLAD). From the study of an annual cicada (Neotibicen Canicularis, also known as dog-day cicada) in North America, it is found that the cicada wing surfaces are composed of u...
| Main Authors: | , , , , , , , |
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| Format: | Article |
| Language: | English |
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Nature Portfolio
2023-01-01
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| Series: | Scientific Reports |
| Online Access: | https://doi.org/10.1038/s41598-022-27225-4 |
| _version_ | 1797958642063900672 |
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| author | Chuang Qu Jesse L. Rozsa Hyun-Jin Jung Anna R. Williams Emmanuel K. Markin Mark P. Running Shamus McNamara Kevin M. Walsh |
| author_facet | Chuang Qu Jesse L. Rozsa Hyun-Jin Jung Anna R. Williams Emmanuel K. Markin Mark P. Running Shamus McNamara Kevin M. Walsh |
| author_sort | Chuang Qu |
| collection | DOAJ |
| description | Abstract This paper describes the fabrication of cicada-wing-inspired antimicrobial surfaces using Glancing Angle Deposition (GLAD). From the study of an annual cicada (Neotibicen Canicularis, also known as dog-day cicada) in North America, it is found that the cicada wing surfaces are composed of unique three-dimensional (3D) nanofeature arrays, which grant them extraordinary properties including antimicrobial (antifouling) and antireflective. However, the morphology of these 3D nanostructures imposes challenges in artificially synthesizing the structures by utilizing and scaling up the template area from nature. From the perspective of circumventing the difficulties of creating 3D nanofeature arrays with top-down nanofabrication techniques, this paper introduces a nanofabrication process that combines bottom-up steps: self-assembled nanospheres are used as the bases of the features, while sub-100 nm pillars are grown on top of the bases by GLAD. Scanning electron micrographs show the resemblance of the synthesized cicada wing mimicry samples to the actual cicada wings, both quantitatively and qualitatively. The synthetic mimicry samples are hydrophobic with a water contact angle of 125˚. Finally, the antimicrobial properties of the mimicries are validated by showing flat growth curves of Escherichia coli (E. coli) and by direct observation under scanning electron microscopy (SEM). The process is potentially suitable for large-area antimicrobial applications in food and biomedical industries. |
| first_indexed | 2024-04-11T00:22:52Z |
| format | Article |
| id | doaj.art-65294a2aad20486aad857643a00eeba8 |
| institution | Directory Open Access Journal |
| issn | 2045-2322 |
| language | English |
| last_indexed | 2024-04-11T00:22:52Z |
| publishDate | 2023-01-01 |
| publisher | Nature Portfolio |
| record_format | Article |
| series | Scientific Reports |
| spelling | doaj.art-65294a2aad20486aad857643a00eeba82023-01-08T12:12:03ZengNature PortfolioScientific Reports2045-23222023-01-011311810.1038/s41598-022-27225-4Bio-inspired antimicrobial surfaces fabricated by glancing angle depositionChuang Qu0Jesse L. Rozsa1Hyun-Jin Jung2Anna R. Williams3Emmanuel K. Markin4Mark P. Running5Shamus McNamara6Kevin M. Walsh7Department of Electrical and Computer Engineering, University of LouisvilleDepartment of Biology, University of LouisvilleDepartment of Biology, University of LouisvilleDepartment of Biology, University of LouisvilleDepartment of Biology, University of LouisvilleDepartment of Biology, University of LouisvilleDepartment of Electrical and Computer Engineering, University of LouisvilleDepartment of Electrical and Computer Engineering, University of LouisvilleAbstract This paper describes the fabrication of cicada-wing-inspired antimicrobial surfaces using Glancing Angle Deposition (GLAD). From the study of an annual cicada (Neotibicen Canicularis, also known as dog-day cicada) in North America, it is found that the cicada wing surfaces are composed of unique three-dimensional (3D) nanofeature arrays, which grant them extraordinary properties including antimicrobial (antifouling) and antireflective. However, the morphology of these 3D nanostructures imposes challenges in artificially synthesizing the structures by utilizing and scaling up the template area from nature. From the perspective of circumventing the difficulties of creating 3D nanofeature arrays with top-down nanofabrication techniques, this paper introduces a nanofabrication process that combines bottom-up steps: self-assembled nanospheres are used as the bases of the features, while sub-100 nm pillars are grown on top of the bases by GLAD. Scanning electron micrographs show the resemblance of the synthesized cicada wing mimicry samples to the actual cicada wings, both quantitatively and qualitatively. The synthetic mimicry samples are hydrophobic with a water contact angle of 125˚. Finally, the antimicrobial properties of the mimicries are validated by showing flat growth curves of Escherichia coli (E. coli) and by direct observation under scanning electron microscopy (SEM). The process is potentially suitable for large-area antimicrobial applications in food and biomedical industries.https://doi.org/10.1038/s41598-022-27225-4 |
| spellingShingle | Chuang Qu Jesse L. Rozsa Hyun-Jin Jung Anna R. Williams Emmanuel K. Markin Mark P. Running Shamus McNamara Kevin M. Walsh Bio-inspired antimicrobial surfaces fabricated by glancing angle deposition Scientific Reports |
| title | Bio-inspired antimicrobial surfaces fabricated by glancing angle deposition |
| title_full | Bio-inspired antimicrobial surfaces fabricated by glancing angle deposition |
| title_fullStr | Bio-inspired antimicrobial surfaces fabricated by glancing angle deposition |
| title_full_unstemmed | Bio-inspired antimicrobial surfaces fabricated by glancing angle deposition |
| title_short | Bio-inspired antimicrobial surfaces fabricated by glancing angle deposition |
| title_sort | bio inspired antimicrobial surfaces fabricated by glancing angle deposition |
| url | https://doi.org/10.1038/s41598-022-27225-4 |
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