Synthesis and co-assembly of gold nanoparticles functionalized by a pyrene-thiol derivative

We successfully synthesized a series of gold nanoparticles capped with 11-(4-(pyren-1-yl)phenoxy)undecane-1-thiol ( A-SH ) and with 1-dodecanethiol. The homodispersed gold nanoparticles were fully verified by TEM, UV-Vis and PL spectroscopy. TEM images of the nanoparticles showed similar particle si...

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Bibliographic Details
Published in:RSC advances 2015-01, Vol.5 (1), p.14-145
Main Authors: Mi, Yongsheng, Liang, Pengxia, Yang, Zhou, Wang, Dong, He, Wanli, Cao, Hui, Yang, Huai
Format: Article
Language:English
Subjects:
Capping
Derivatives
Dispersions
Gold
Nanoparticles
Particle size
Pyrenes
Synthesis
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Summary:We successfully synthesized a series of gold nanoparticles capped with 11-(4-(pyren-1-yl)phenoxy)undecane-1-thiol ( A-SH ) and with 1-dodecanethiol. The homodispersed gold nanoparticles were fully verified by TEM, UV-Vis and PL spectroscopy. TEM images of the nanoparticles showed similar particle sizes at approximately 2.5 nm also evidenced by the absorption spectra. By solvent-exchange co-self-assembly of a pyrene derivative composited with these functionalized nanoparticles, the different arrangements of Au nanoparticles were observed. Compared to Au nanoparticles functionalized by 1-dodecanethiol (GNP), the pyrene-thiol-capped gold nanoparticles (GNP-A) showed better dispersity in the pyrene derivative matrix because of their π-π interactions. We synthesized a series of gold nanoparticles capped with 11-(4-(pyren-1-yl)phenoxy)undecane-1-thiol and with 1-dodecanethiol. The homodispersed gold nanoparticles were fully verified and co-assembly of gold nanoparticles composited with discotic molecules were investigated.
ISSN:2046-2069
2046-2069
DOI:10.1039/c4ra11932k