Colloidal clustering of protein-coated microspheres in evaporating droplets
Colloidal clustering in an evaporating aqueous droplet was investigated by means of optical microscopy. The colloids were negatively charged paramagnetic polystyrene microspheres coated with a monolayer of the protein streptavidin. The dynamical process of the colloidal clustering was characterized...
| Main Authors: | , , , |
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| Other Authors: | |
| Format: | Journal Article |
| Language: | English |
| Published: |
2013
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| Online Access: | https://hdl.handle.net/10356/96635 http://hdl.handle.net/10220/10346 |
| _version_ | 1811683371153096704 |
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| author | Miao, Yuanhua. Liu, Yanhong. Hu, Lanying. Helseth, Lars Egil. |
| author2 | School of Physical and Mathematical Sciences |
| author_facet | School of Physical and Mathematical Sciences Miao, Yuanhua. Liu, Yanhong. Hu, Lanying. Helseth, Lars Egil. |
| author_sort | Miao, Yuanhua. |
| collection | NTU |
| description | Colloidal clustering in an evaporating aqueous droplet was investigated by means of optical microscopy. The colloids were negatively charged paramagnetic polystyrene microspheres coated with a monolayer of the protein streptavidin. The dynamical process of the colloidal clustering was characterized quantitatively by the radial distribution function. The experimental results demonstrate that the clustering process goes through stages wherein the cluster is compactified and a colloidal crystal is formed at its core. Moreover, by adjusting the external magnetic field acting on the magnetic colloids, we could investigate the influence of the repulsive dipolar forces on the colloidal cluster dynamics and the equilibrium distance between the colloids in the cluster. |
| first_indexed | 2024-10-01T04:11:40Z |
| format | Journal Article |
| id | ntu-10356/96635 |
| institution | Nanyang Technological University |
| language | English |
| last_indexed | 2024-10-01T04:11:40Z |
| publishDate | 2013 |
| record_format | dspace |
| spelling | ntu-10356/966352020-03-07T12:34:43Z Colloidal clustering of protein-coated microspheres in evaporating droplets Miao, Yuanhua. Liu, Yanhong. Hu, Lanying. Helseth, Lars Egil. School of Physical and Mathematical Sciences Colloidal clustering in an evaporating aqueous droplet was investigated by means of optical microscopy. The colloids were negatively charged paramagnetic polystyrene microspheres coated with a monolayer of the protein streptavidin. The dynamical process of the colloidal clustering was characterized quantitatively by the radial distribution function. The experimental results demonstrate that the clustering process goes through stages wherein the cluster is compactified and a colloidal crystal is formed at its core. Moreover, by adjusting the external magnetic field acting on the magnetic colloids, we could investigate the influence of the repulsive dipolar forces on the colloidal cluster dynamics and the equilibrium distance between the colloids in the cluster. 2013-06-13T06:50:01Z 2019-12-06T19:33:13Z 2013-06-13T06:50:01Z 2019-12-06T19:33:13Z 2012 2012 Journal Article Miao, Y., Liu, Y., Hu, L., & Helseth, L. E. (2012). Colloidal clustering of protein-coated microspheres in evaporating droplets. Soft Matter, 8(7), 2267-2273. 1744-683X https://hdl.handle.net/10356/96635 http://hdl.handle.net/10220/10346 10.1039/c2sm06777c en Soft matter © 2012 The Royal Society of Chemistry. |
| spellingShingle | Miao, Yuanhua. Liu, Yanhong. Hu, Lanying. Helseth, Lars Egil. Colloidal clustering of protein-coated microspheres in evaporating droplets |
| title | Colloidal clustering of protein-coated microspheres in evaporating droplets |
| title_full | Colloidal clustering of protein-coated microspheres in evaporating droplets |
| title_fullStr | Colloidal clustering of protein-coated microspheres in evaporating droplets |
| title_full_unstemmed | Colloidal clustering of protein-coated microspheres in evaporating droplets |
| title_short | Colloidal clustering of protein-coated microspheres in evaporating droplets |
| title_sort | colloidal clustering of protein coated microspheres in evaporating droplets |
| url | https://hdl.handle.net/10356/96635 http://hdl.handle.net/10220/10346 |
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