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Ultrafast synthesis of Au(I)-dodecanethiolate nanotubes for advanced Hg(2+) sensor electrodes.

Zhang Z, Ma C, He L, Zhu S, Hao X, Xie W, Zhang W, Zhang Y - Nanoscale Res Lett (2014)

Bottom Line: In this work, an ultrafast and facile method is developed to synthesize Au(I)-dodecanethiolate nanotubes (Au(I)NTs) with the assistance of glycyl-glycyl-glycine (G-G-G).According to structural analysis, a possible preparative mechanism is proposed that the G-G-G peptide could help to curl into tube-like morphology in alkaline situation spontaneously to accelerate the formation of Au(I)NTs.Meanwhile, PVDF-stabilized Au(I)NT-modified glassy carbon electrodes present their promising potential for Hg(2+) detection.

View Article: PubMed Central - HTML - PubMed

Affiliation: College of Material Science and Engineering, Chongqing University, Chongqing 400044, People's Republic of China.

ABSTRACT
In this work, an ultrafast and facile method is developed to synthesize Au(I)-dodecanethiolate nanotubes (Au(I)NTs) with the assistance of glycyl-glycyl-glycine (G-G-G). Transmission electron microscopy (TEM) images reveal that the as-prepared Au(I)NTs can be obtained in a 2-h reaction instead of a previous 24-h reaction and are uniform with a hollow structure and smooth surface by virtue of the G-G-G peptide tubular template. According to structural analysis, a possible preparative mechanism is proposed that the G-G-G peptide could help to curl into tube-like morphology in alkaline situation spontaneously to accelerate the formation of Au(I)NTs. Meanwhile, PVDF-stabilized Au(I)NT-modified glassy carbon electrodes present their promising potential for Hg(2+) detection.

No MeSH data available.


Related in: MedlinePlus

XRD patterns, FTIR spectrum, and TGA spectrum. (a) XRD patterns, (b) FTIR spectrum, and (c) TGA spectrum of the as-prepared Au(I)-dodecanethiolate nanotubes with gly-gly-gly in 2 h.
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Figure 2: XRD patterns, FTIR spectrum, and TGA spectrum. (a) XRD patterns, (b) FTIR spectrum, and (c) TGA spectrum of the as-prepared Au(I)-dodecanethiolate nanotubes with gly-gly-gly in 2 h.

Mentions: To further reveal the chemical constitution and structure of the hybrid nanotubes, XRD patterns were obtained in Figure 2a, presenting that there is no Au(0) existence in the nanotube as there is no XRD signal of the Au(0). The periodic diffraction indicates the bilayer structure of the nanotubes, and the nearest distance between two adjacent walls is in the range of 3.384 ± 0.010 nm, in accord with our previous work [12]. This finding also verifies that gly-gly-gly does not tune the distance of Au(I)-thiol bilayer structures.


Ultrafast synthesis of Au(I)-dodecanethiolate nanotubes for advanced Hg(2+) sensor electrodes.

Zhang Z, Ma C, He L, Zhu S, Hao X, Xie W, Zhang W, Zhang Y - Nanoscale Res Lett (2014)

XRD patterns, FTIR spectrum, and TGA spectrum. (a) XRD patterns, (b) FTIR spectrum, and (c) TGA spectrum of the as-prepared Au(I)-dodecanethiolate nanotubes with gly-gly-gly in 2 h.
© Copyright Policy - open-access
Related In: Results  -  Collection

License
Show All Figures
getmorefigures.php?uid=PMC4226189&req=5

Figure 2: XRD patterns, FTIR spectrum, and TGA spectrum. (a) XRD patterns, (b) FTIR spectrum, and (c) TGA spectrum of the as-prepared Au(I)-dodecanethiolate nanotubes with gly-gly-gly in 2 h.
Mentions: To further reveal the chemical constitution and structure of the hybrid nanotubes, XRD patterns were obtained in Figure 2a, presenting that there is no Au(0) existence in the nanotube as there is no XRD signal of the Au(0). The periodic diffraction indicates the bilayer structure of the nanotubes, and the nearest distance between two adjacent walls is in the range of 3.384 ± 0.010 nm, in accord with our previous work [12]. This finding also verifies that gly-gly-gly does not tune the distance of Au(I)-thiol bilayer structures.

Bottom Line: In this work, an ultrafast and facile method is developed to synthesize Au(I)-dodecanethiolate nanotubes (Au(I)NTs) with the assistance of glycyl-glycyl-glycine (G-G-G).According to structural analysis, a possible preparative mechanism is proposed that the G-G-G peptide could help to curl into tube-like morphology in alkaline situation spontaneously to accelerate the formation of Au(I)NTs.Meanwhile, PVDF-stabilized Au(I)NT-modified glassy carbon electrodes present their promising potential for Hg(2+) detection.

View Article: PubMed Central - HTML - PubMed

Affiliation: College of Material Science and Engineering, Chongqing University, Chongqing 400044, People's Republic of China.

ABSTRACT
In this work, an ultrafast and facile method is developed to synthesize Au(I)-dodecanethiolate nanotubes (Au(I)NTs) with the assistance of glycyl-glycyl-glycine (G-G-G). Transmission electron microscopy (TEM) images reveal that the as-prepared Au(I)NTs can be obtained in a 2-h reaction instead of a previous 24-h reaction and are uniform with a hollow structure and smooth surface by virtue of the G-G-G peptide tubular template. According to structural analysis, a possible preparative mechanism is proposed that the G-G-G peptide could help to curl into tube-like morphology in alkaline situation spontaneously to accelerate the formation of Au(I)NTs. Meanwhile, PVDF-stabilized Au(I)NT-modified glassy carbon electrodes present their promising potential for Hg(2+) detection.

No MeSH data available.


Related in: MedlinePlus