| Title |
Facile synthesis of concentrated gold nanoparticles with low size-distribution in water: temperature and pH controls
|
|---|---|
| Published in |
Discover Nano, July 2011
|
| DOI | 10.1186/1556-276x-6-440 |
| Pubmed ID | |
| Authors |
Chunfang Li, Dongxiang Li, Gangqiang Wan, Jie Xu, Wanguo Hou |
| Abstract |
The citrate reduction method for the synthesis of gold nanoparticles (GNPs) has known advantages but usually provides the products with low nanoparticle concentration and limits its application. Herein, we report a facile method to synthesize GNPs from concentrated chloroauric acid (2.5 mM) via adding sodium hydroxide and controlling the temperature. It was found that adding a proper amount of sodium hydroxide can produce uniform concentrated GNPs with low size distribution; otherwise, the largely distributed nanoparticles or instable colloids were obtained. The low reaction temperature is helpful to control the nanoparticle formation rate, and uniform GNPs can be obtained in presence of optimized NaOH concentrations. The pH values of the obtained uniform GNPs were found to be very near to neutral, and the pH influence on the particle size distribution may reveal the different formation mechanism of GNPs at high or low pH condition. Moreover, this modified synthesis method can save more than 90% energy in the heating step. Such environmental-friendly synthesis method for gold nanoparticles may have a great potential in large-scale manufacturing for commercial and industrial demand. |
Mendeley readers
The data shown below were compiled from readership statistics for 418 Mendeley readers of this research output. Click here to see the associated Mendeley record.
Geographical breakdown
| Country | Count | As % |
|---|---|---|
| India | 2 | <1% |
| South Africa | 2 | <1% |
| Brazil | 1 | <1% |
| Finland | 1 | <1% |
| Portugal | 1 | <1% |
| United Kingdom | 1 | <1% |
| Spain | 1 | <1% |
| Philippines | 1 | <1% |
| Poland | 1 | <1% |
| Other | 0 | 0% |
| Unknown | 407 | 97% |
Demographic breakdown
| Readers by professional status | Count | As % |
|---|---|---|
| Student > Ph. D. Student | 112 | 27% |
| Student > Master | 80 | 19% |
| Student > Bachelor | 47 | 11% |
| Researcher | 46 | 11% |
| Student > Doctoral Student | 25 | 6% |
| Other | 56 | 13% |
| Unknown | 52 | 12% |
| Readers by discipline | Count | As % |
|---|---|---|
| Chemistry | 136 | 33% |
| Materials Science | 47 | 11% |
| Agricultural and Biological Sciences | 40 | 10% |
| Engineering | 32 | 8% |
| Biochemistry, Genetics and Molecular Biology | 22 | 5% |
| Other | 78 | 19% |
| Unknown | 63 | 15% |
Attention Score in Context
This research output has an Altmetric Attention Score of 1. This is our high-level measure of the quality and quantity of online attention that it has received. This Attention Score, as well as the ranking and number of research outputs shown below, was calculated when the research output was last mentioned on 13 February 2013.
All research outputs
#20,655,488
of 25,373,627 outputs
Outputs from Discover Nano
#691
of 1,146 outputs
Outputs of similar age
#107,207
of 127,632 outputs
Outputs of similar age from Discover Nano
#15
of 18 outputs
Altmetric has tracked 25,373,627 research outputs across all sources so far. This one is in the 10th percentile – i.e., 10% of other outputs scored the same or lower than it.
So far Altmetric has tracked 1,146 research outputs from this source. They receive a mean Attention Score of 3.5. This one is in the 30th percentile – i.e., 30% of its peers scored the same or lower than it.
Older research outputs will score higher simply because they've had more time to accumulate mentions. To account for age we can compare this Altmetric Attention Score to the 127,632 tracked outputs that were published within six weeks on either side of this one in any source. This one is in the 7th percentile – i.e., 7% of its contemporaries scored the same or lower than it.
We're also able to compare this research output to 18 others from the same source and published within six weeks on either side of this one. This one is in the 1st percentile – i.e., 1% of its contemporaries scored the same or lower than it.