Conversion of rod-shaped gold nanoparticles to spherical forms and their effect on biodistribution in tumor-bearing mice

Yasuyuki Akiyama, Takeshi Mori, Yoshiki Katayama, Takuro Niidome

研究成果: ジャーナルへの寄稿記事

24 引用 (Scopus)

抄録

Gold nanorods that have an absorption band in the near-infrared region and a photothermal effect have been used as nanodevices for near-infrared imaging and thermal therapy. Choice of the optimal shape of gold nanorods which relates optical properties and in vivo biodistribution is important for their applications. In the present study, to investigate the relationship between the shape of gold nanorods and their biodistribution after intravenous injection, we first prepared two types of gold nanorods that had distinct aspect ratios but had the same volume, zeta potential, and PEG density on the gold surface. Biodistributions of the two types of gold nanorods after intravenous injection into tumor-bearing mice were then compared. Although a slight difference in accumulation in the spleen was observed, no significant difference was observed in the liver, lung, kidney, and tumors. These results suggest that biodistribution of the gold nanorods in the aspect ratio range of 1.7 to 5.0, diameter of 10 to 50 nm, and volume of approximately 4 × 103 nm3 was dependent mainly on surface characteristics, PEG density, and zeta potential.

元の言語英語
記事番号565
ページ(範囲)1-6
ページ数6
ジャーナルNanoscale Research Letters
7
DOI
出版物ステータス出版済み - 1 1 2012

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Bearings (structural)
Gold
mice
Tumors
Nanorods
rods
tumors
nanorods
gold
Nanoparticles
nanoparticles
Zeta potential
Polyethylene glycols
aspect ratio
Aspect ratio
injection
spleen
Infrared imaging
kidneys
liver

All Science Journal Classification (ASJC) codes

  • Materials Science(all)
  • Condensed Matter Physics

これを引用

Conversion of rod-shaped gold nanoparticles to spherical forms and their effect on biodistribution in tumor-bearing mice. / Akiyama, Yasuyuki; Mori, Takeshi; Katayama, Yoshiki; Niidome, Takuro.

:: Nanoscale Research Letters, 巻 7, 565, 01.01.2012, p. 1-6.

研究成果: ジャーナルへの寄稿記事

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