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Programmable gradational micropatterning of functional materials using maskless lithography controlling absorption
The demand for patterning functional materials precisely on surfaces of stimuli-responsive devices has increased in many research fields. In situ polymerization technology is one of the most convenient ways to place the functional materials on a desired location with micron-scale accuracy. To fabric...
Autores principales: | , , , , |
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Formato: | Online Artículo Texto |
Lenguaje: | English |
Publicado: |
Nature Publishing Group
2015
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Materias: | |
Acceso en línea: | https://www.ncbi.nlm.nih.gov/pmc/articles/PMC4615026/ https://www.ncbi.nlm.nih.gov/pubmed/26490360 http://dx.doi.org/10.1038/srep15629 |
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author | Jung, Yushin Lee, Howon Park, Tae-Joon Kim, Sungsik Kwon, Sunghoon |
author_facet | Jung, Yushin Lee, Howon Park, Tae-Joon Kim, Sungsik Kwon, Sunghoon |
author_sort | Jung, Yushin |
collection | PubMed |
description | The demand for patterning functional materials precisely on surfaces of stimuli-responsive devices has increased in many research fields. In situ polymerization technology is one of the most convenient ways to place the functional materials on a desired location with micron-scale accuracy. To fabricate stimuli-responsive surfaces, controlling concentration of the functional material is much as important as micropatterning them. However, patterning and controlling concentration of the functional materials simultaneously requires an additional process, such as preparing multiple co-flow microfluidic structures and numbers of solutions with various concentrations. Despite applying these processes, fabricating heterogeneous patterns in large scale (millimeter scale) is still impossible. In this study, we propose an advanced in situ polymerization technique to pattern the surface in micron scale in a concentration-controlled manner. Because the concentration of the functional materials is manipulated by self-assembly on the surface, a complex pattern could be easily fabricated without any additional procedure. The complex pattern is pre-designed with absorption amount of the functional material, which is pre-determined by the duration of UV exposure. We show that the resolution reaches up to 2.5 μm and demonstrate mm-scale objects, maintaining the same resolution. We also fabricated Multi-bit barcoded micro particles verify the flexibility of our system. |
format | Online Article Text |
id | pubmed-4615026 |
institution | National Center for Biotechnology Information |
language | English |
publishDate | 2015 |
publisher | Nature Publishing Group |
record_format | MEDLINE/PubMed |
spelling | pubmed-46150262015-10-29 Programmable gradational micropatterning of functional materials using maskless lithography controlling absorption Jung, Yushin Lee, Howon Park, Tae-Joon Kim, Sungsik Kwon, Sunghoon Sci Rep Article The demand for patterning functional materials precisely on surfaces of stimuli-responsive devices has increased in many research fields. In situ polymerization technology is one of the most convenient ways to place the functional materials on a desired location with micron-scale accuracy. To fabricate stimuli-responsive surfaces, controlling concentration of the functional material is much as important as micropatterning them. However, patterning and controlling concentration of the functional materials simultaneously requires an additional process, such as preparing multiple co-flow microfluidic structures and numbers of solutions with various concentrations. Despite applying these processes, fabricating heterogeneous patterns in large scale (millimeter scale) is still impossible. In this study, we propose an advanced in situ polymerization technique to pattern the surface in micron scale in a concentration-controlled manner. Because the concentration of the functional materials is manipulated by self-assembly on the surface, a complex pattern could be easily fabricated without any additional procedure. The complex pattern is pre-designed with absorption amount of the functional material, which is pre-determined by the duration of UV exposure. We show that the resolution reaches up to 2.5 μm and demonstrate mm-scale objects, maintaining the same resolution. We also fabricated Multi-bit barcoded micro particles verify the flexibility of our system. Nature Publishing Group 2015-10-22 /pmc/articles/PMC4615026/ /pubmed/26490360 http://dx.doi.org/10.1038/srep15629 Text en Copyright © 2015, Macmillan Publishers Limited http://creativecommons.org/licenses/by/4.0/ This work is licensed under a Creative Commons Attribution 4.0 International License. The images or other third party material in this article are included in the article’s Creative Commons license, unless indicated otherwise in the credit line; if the material is not included under the Creative Commons license, users will need to obtain permission from the license holder to reproduce the material. To view a copy of this license, visit http://creativecommons.org/licenses/by/4.0/ |
spellingShingle | Article Jung, Yushin Lee, Howon Park, Tae-Joon Kim, Sungsik Kwon, Sunghoon Programmable gradational micropatterning of functional materials using maskless lithography controlling absorption |
title | Programmable gradational micropatterning of functional materials using maskless lithography controlling absorption |
title_full | Programmable gradational micropatterning of functional materials using maskless lithography controlling absorption |
title_fullStr | Programmable gradational micropatterning of functional materials using maskless lithography controlling absorption |
title_full_unstemmed | Programmable gradational micropatterning of functional materials using maskless lithography controlling absorption |
title_short | Programmable gradational micropatterning of functional materials using maskless lithography controlling absorption |
title_sort | programmable gradational micropatterning of functional materials using maskless lithography controlling absorption |
topic | Article |
url | https://www.ncbi.nlm.nih.gov/pmc/articles/PMC4615026/ https://www.ncbi.nlm.nih.gov/pubmed/26490360 http://dx.doi.org/10.1038/srep15629 |
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