Crossref journal-article
Oxford University Press (OUP)
Bulletin of the Chemical Society of Japan (286)
Abstract

Abstract Two types of tetrathiolated surface passivants were synthesized in order to explore the effect of S-functional groups (disulfide vs. S-thioester) to control the size of gold nanoparticles prepared by a simple one-pot reduction of tetrachloroaurate with sodium tetrahydroborate. Both the passivants have four thiolated arms in the same direction perpendicular to a porphyrin plane, and produced small porphyrin-coated gold nanoparticles 2 to 4 nm in size by one-pot reduction of AuIII ions at S/Au from 1 to 16. The constancy in particle size at S/Au ratio less than 4 was greater with use of tetradentate disulfide passivant compared with use of tetradentate S-thioester ligand, which should be attributed to faster adsorption of disulfide groups with gold than that of S-thioester groups. The results described here suggest that passivants having multivalent disulfide bonds should be promising candidates for constructing monolayer-protected gold nanoparticles of well-defined size.

Bibliography

Hitomi, Y., Ohyama, J., Higuchi, Y., Aoki, K., Shishido, T., Funabiki, T., Kodera, M., & Tanaka, T. (2010). Efficient Capping of Growing Gold Nanoparticles by Porphyrin Having Two Disulfide Straps over One Face. Bulletin of the Chemical Society of Japan, 83(11), 1392–1396.

Authors 8
  1. Yutaka Hitomi (first)
  2. Junya Ohyama (additional)
  3. Yasuhiro Higuchi (additional)
  4. Kazuki Aoki (additional)
  5. Tetsuya Shishido (additional)
  6. Takuzo Funabiki (additional)
  7. Masahito Kodera (additional)
  8. Tsunehiro Tanaka (additional)
Dates
Type When
Created 14 years, 10 months ago (Oct. 21, 2010, 1:20 a.m.)
Deposited 1 year, 7 months ago (Jan. 20, 2024, 3:28 p.m.)
Indexed 1 year, 7 months ago (Jan. 21, 2024, 8:14 a.m.)
Issued 14 years, 10 months ago (Oct. 21, 2010)
Published 14 years, 10 months ago (Oct. 21, 2010)
Published Online 14 years, 10 months ago (Oct. 21, 2010)
Published Print 14 years, 9 months ago (Nov. 15, 2010)
Funders 0

None

@article{Hitomi_2010, title={Efficient Capping of Growing Gold Nanoparticles by Porphyrin Having Two Disulfide Straps over One Face}, volume={83}, ISSN={1348-0634}, url={http://dx.doi.org/10.1246/bcsj.20100160}, DOI={10.1246/bcsj.20100160}, number={11}, journal={Bulletin of the Chemical Society of Japan}, publisher={Oxford University Press (OUP)}, author={Hitomi, Yutaka and Ohyama, Junya and Higuchi, Yasuhiro and Aoki, Kazuki and Shishido, Tetsuya and Funabiki, Takuzo and Kodera, Masahito and Tanaka, Tsunehiro}, year={2010}, month=oct, pages={1392–1396} }