Colloidal Dispersion of Gold Nanorods and Gold-Silver Core-Shell Nanorods in Polar Organic Solvents
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<jats:title>Abstract</jats:title> <jats:p>Gold nanorods and gold-silver core-shell nanorods were colloidally dispersed in polar organic solvents, acetonitrile, dimethylsulfoxide, and dimethylformamide, and their water mixtures. The gold nanorods showed narrow longitudinal surface plasmon bands in 100% dimethylformamide, 25% dimethylsulfoxide, and 25% acetonitrile solutions, indicating that the gold nanorods were well dispersed in these solutions. For the core-shell nanorods, acetonitrile and its water mixtures gave well-dispersed colloidal solutions. Amphiphilic molecules in the dispersions did not influence the systems; however, thiol-terminated poly(ethylene glycol) (PEG-SH) strongly stabilized the colloidal dispersions. The nanorods in the organic dispersions with the addition of PEG-SH could be redispersed in phosphate buffer saline (PBS) solutions. The zeta potentials of the gold nanorods in 1/10 PBS solutions ranged from −7.5 to +3.3 mV. Steric effects of the bulky PEG chains attached to the nanorod surfaces stabilized their colloidal dispersions in PBS.</jats:p>
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- Bulletin of the Chemical Society of Japan
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Bulletin of the Chemical Society of Japan 90 (2), 161-168, 2017-02
Tokyo : Chemical Society of Japan
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詳細情報 詳細情報について
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- CRID
- 1523388080252875520
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- NII論文ID
- 130005332367
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- NII書誌ID
- AA00580132
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- ISSN
- 00092673
- 13480634
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- NDL書誌ID
- 027981815
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- 本文言語コード
- en
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- NDL 雑誌分類
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- ZP1(科学技術--化学・化学工業)
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- データソース種別
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- NDL
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