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Carbon dots functionalized by organosilane with double-sided anchoring for nanomolar Hg2+ detection

Overview of attention for article published in Journal of Colloid & Interface Science, January 2015
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Citations

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Title
Carbon dots functionalized by organosilane with double-sided anchoring for nanomolar Hg2+ detection
Published in
Journal of Colloid & Interface Science, January 2015
DOI 10.1016/j.jcis.2014.09.013
Pubmed ID
Authors

Wentai Wang, Tak Kim, Zifeng Yan, Guangshan Zhu, Ivan Cole, Nam-Trung Nguyen, Qin Li

Abstract

Surface functional groups on carbon dots (CDs) play a critical role in defining their photoluminescence properties and functionalities. A new kind of organosilane-functionalized CDs (OS-CDs) were formed by a low temperature (150°C) solvothermal synthesis of citric acid in N-(β-aminoethyl)-γ-aminopropylmethyl-dimethoxysilane (AEAPMS). Uniquely, the as-synthesized OS-CDs have dual long chain functional groups with both NH2 and Si(OCH3)3 as terminal moieties. Double sided anchoring of AEAPMS on CDs occurs, facilitated by the water produced (and confined at the interface between CDs and solvent) when citric acid condenses into the carbon core. The resultant OS-CDs are multi-solvent dispersible, and more significantly, they exhibit excellent selectivity and sensitivity to Hg(2+) with a linear detection range of 0-50 nM and detection limit of 1.35 nM. The sensitivity and selectivity to Hg(2+) is preserved in highly complex fluids with a detection limit of 1.7 nM in spiked 1 M NaCl solution and a detection limit of 50 nM in municipal wastewater effluent. The results show that the OS-CDs synthesised by the solvothermal method in AEAPMS may be used as an effective Hg(2+) sensor in practical situations.

Mendeley readers

The data shown below were compiled from readership statistics for 31 Mendeley readers of this research output. Click here to see the associated Mendeley record.

Geographical breakdown

Country Count As %
Unknown 31 100%

Demographic breakdown

Readers by professional status Count As %
Student > Ph. D. Student 10 32%
Student > Bachelor 3 10%
Researcher 3 10%
Professor 3 10%
Student > Master 3 10%
Other 4 13%
Unknown 5 16%
Readers by discipline Count As %
Chemistry 13 42%
Engineering 5 16%
Materials Science 2 6%
Environmental Science 1 3%
Chemical Engineering 1 3%
Other 0 0%
Unknown 9 29%

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 October 2014.
All research outputs
#10,649,825
of 12,009,062 outputs
Outputs from Journal of Colloid & Interface Science
#3,056
of 3,326 outputs
Outputs of similar age
#175,903
of 215,305 outputs
Outputs of similar age from Journal of Colloid & Interface Science
#16
of 24 outputs
Altmetric has tracked 12,009,062 research outputs across all sources so far. This one is in the 1st percentile – i.e., 1% of other outputs scored the same or lower than it.
So far Altmetric has tracked 3,326 research outputs from this source. They receive a mean Attention Score of 3.2. This one is in the 1st percentile – i.e., 1% 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 215,305 tracked outputs that were published within six weeks on either side of this one in any source. This one is in the 1st percentile – i.e., 1% of its contemporaries scored the same or lower than it.
We're also able to compare this research output to 24 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.