Writing Tiny Nanoclusters Using a Nanofountain Pen Operated by Spontaneous Evaporation
Tow-dimensional and 3-dimensional colloidal structures have been used to study surface-enhanced Raman scattering and localized surface plasmon resonance because of their regular stacking structures. However, freely controlling the number and size of the colloidal assemblies remains a challenge. In t...
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| Format: | Article |
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MDPI AG
2023-12-01
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| Series: | Crystals |
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| Online Access: | https://www.mdpi.com/2073-4352/14/1/9 |
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| author | Sung-Jo Kim Dongwon Yi Il Hyun Lee Won-Geun Kim Ye-Ji Kim Jong-Sik Moon Jin-Woo Oh |
| author_facet | Sung-Jo Kim Dongwon Yi Il Hyun Lee Won-Geun Kim Ye-Ji Kim Jong-Sik Moon Jin-Woo Oh |
| author_sort | Sung-Jo Kim |
| collection | DOAJ |
| description | Tow-dimensional and 3-dimensional colloidal structures have been used to study surface-enhanced Raman scattering and localized surface plasmon resonance because of their regular stacking structures. However, freely controlling the number and size of the colloidal assemblies remains a challenge. In this study, we demonstrated the fabrication and mechanism of tiny nanoclusters using spontaneous evaporation-based nanofountain pens (NFPs). A micrometer-scale NFP nozzle was fabricated using a glass capillary. The gold nanoparticles (AuNPs) dispersed ink formed the pendant droplet at the NFP nozzle tip, where the AuNPs accumulated within the pendant droplet because of evaporation. The accumulated AuNPs were transferred onto the substrate via a stamp-like process to create nanoclusters. Using water evaporation analyzed by diffusion equations, we showed that reducing the AuNP accumulation to one hundred is possible. This precise adjustment enables fabrication until submicrometer-level nanoclusters. The fabrication method using NFPs can create 3D structures, and this operation is not significantly affected by the size or composition of the AuNPs. This could be expanded to metabolite-included nanocluster where metabolite can be located at the hot spot among AuNPs. Therefore, we expect that this will be utilized to create SERS signals and conduct disease diagnosis research using extremely small amounts of metabolites. |
| first_indexed | 2024-03-08T09:55:33Z |
| format | Article |
| id | doaj.art-1c2b1464575a4e86bfc71a6265412dc7 |
| institution | Directory Open Access Journal |
| issn | 2073-4352 |
| language | English |
| last_indexed | 2024-03-08T09:55:33Z |
| publishDate | 2023-12-01 |
| publisher | MDPI AG |
| record_format | Article |
| series | Crystals |
| spelling | doaj.art-1c2b1464575a4e86bfc71a6265412dc72024-01-29T13:50:48ZengMDPI AGCrystals2073-43522023-12-01141910.3390/cryst14010009Writing Tiny Nanoclusters Using a Nanofountain Pen Operated by Spontaneous EvaporationSung-Jo Kim0Dongwon Yi1Il Hyun Lee2Won-Geun Kim3Ye-Ji Kim4Jong-Sik Moon5Jin-Woo Oh6BIT Fusion Technology Center, Pusan National University, Busan 46241, Republic of KoreaDivision of Endocrinology and Metabolism, Department of Internal Medicine, Pusan National University Yangsan Hospital, School of Medicine, Pusan National University, Yangsan 50612, Republic of KoreaDepartment of Nano Fusion Technology, Pusan National University, Busan 46241, Republic of KoreaDepartment of Mechanical Engineering, Pohang University of Science and Technology (POSTECH), Pohang 37673, Republic of KoreaDepartment of Nano Fusion Technology, Pusan National University, Busan 46241, Republic of KoreaSchool of Fire Safety, Kyungil University, Gyeongsan 38428, Republic of KoreaBIT Fusion Technology Center, Pusan National University, Busan 46241, Republic of KoreaTow-dimensional and 3-dimensional colloidal structures have been used to study surface-enhanced Raman scattering and localized surface plasmon resonance because of their regular stacking structures. However, freely controlling the number and size of the colloidal assemblies remains a challenge. In this study, we demonstrated the fabrication and mechanism of tiny nanoclusters using spontaneous evaporation-based nanofountain pens (NFPs). A micrometer-scale NFP nozzle was fabricated using a glass capillary. The gold nanoparticles (AuNPs) dispersed ink formed the pendant droplet at the NFP nozzle tip, where the AuNPs accumulated within the pendant droplet because of evaporation. The accumulated AuNPs were transferred onto the substrate via a stamp-like process to create nanoclusters. Using water evaporation analyzed by diffusion equations, we showed that reducing the AuNP accumulation to one hundred is possible. This precise adjustment enables fabrication until submicrometer-level nanoclusters. The fabrication method using NFPs can create 3D structures, and this operation is not significantly affected by the size or composition of the AuNPs. This could be expanded to metabolite-included nanocluster where metabolite can be located at the hot spot among AuNPs. Therefore, we expect that this will be utilized to create SERS signals and conduct disease diagnosis research using extremely small amounts of metabolites.https://www.mdpi.com/2073-4352/14/1/9colloidal assemblynanoclustergold nanoparticlenanofountain penevaporationcapillary action |
| spellingShingle | Sung-Jo Kim Dongwon Yi Il Hyun Lee Won-Geun Kim Ye-Ji Kim Jong-Sik Moon Jin-Woo Oh Writing Tiny Nanoclusters Using a Nanofountain Pen Operated by Spontaneous Evaporation Crystals colloidal assembly nanocluster gold nanoparticle nanofountain pen evaporation capillary action |
| title | Writing Tiny Nanoclusters Using a Nanofountain Pen Operated by Spontaneous Evaporation |
| title_full | Writing Tiny Nanoclusters Using a Nanofountain Pen Operated by Spontaneous Evaporation |
| title_fullStr | Writing Tiny Nanoclusters Using a Nanofountain Pen Operated by Spontaneous Evaporation |
| title_full_unstemmed | Writing Tiny Nanoclusters Using a Nanofountain Pen Operated by Spontaneous Evaporation |
| title_short | Writing Tiny Nanoclusters Using a Nanofountain Pen Operated by Spontaneous Evaporation |
| title_sort | writing tiny nanoclusters using a nanofountain pen operated by spontaneous evaporation |
| topic | colloidal assembly nanocluster gold nanoparticle nanofountain pen evaporation capillary action |
| url | https://www.mdpi.com/2073-4352/14/1/9 |
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