Surface Potential Change of Cationic Nanoparticles by Polymer Coating
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- Karn-orachai Kullavadee
- National Institute of Material Science University of Tsukuba
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- Nishiyama Satoko
- National Institute of Material Science
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- Miki Kazushi
- National Institute of Material Science University of Tsukuba Japan Science and Technology Agency
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The conditions around the AuNPs in a solution could be controllable by changing the method that is used to wash them. However, the ZP measure- ments indicated the presence of negative charges, which indicates that the number of anions located within the HD of the NPs should be larger than the number of cations. In this study, AuNPs were initially coated with CTAB(1). To maintain the negative ZP of the AuNPs after they have been coated with neutral PEG(3), the NP surface must contain more anions than cations. Br mapping is observed to be an ineffective method for tracing CTAB(1) cations (counter ion is Br-) because of polymer-CTAB(1) or polymer-Br- interactions. SDS(4) showed strong interactions with CTAB(1) partly aggregated on the TEM grids. Based on these results, we observed some interesting relationships between polymer and particle charges. We expect to improve the mixing and washing procedures in future.
収録刊行物
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- Journal of Photopolymer Science and Technology
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Journal of Photopolymer Science and Technology 27 (2), 273-276, 2014
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詳細情報 詳細情報について
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- CRID
- 1390001204325719552
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- NII論文ID
- 130004678355
- 40020133188
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- NII書誌ID
- AA11576862
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- ISSN
- 13496336
- 09149244
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- NDL書誌ID
- 025604328
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- 本文言語コード
- en
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- データソース種別
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- JaLC
- NDL
- Crossref
- CiNii Articles
- KAKEN
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- 使用不可