2012
DOI: 10.1021/ac2022376
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Anionic Functionalized Gold Nanoparticle Continuous Full Filling Separations: Importance of Sample Concentration

Abstract: Electrically driven separations which contain nanoparticles offer detection and separation advantages but are often difficult to reproduce. To address possible sources of separation inconsistencies, anionic functionalized gold nanoparticles are thoroughly characterized and subsequently included in continuous full filling capillary electrophoresis separations of varying concentrations of three small molecules. Citrate stabilized gold nanospheres are functionalized with 11-mercaptoundecanoic acid, 6-mercaptohexa… Show more

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Cited by 28 publications
(29 citation statements)
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“…To quantify differences in flocculation (i.e., both agglomeration and aggregation), relative changes in integrated area ((t i −t 0 )/t 0 , %) are calculated from LSPR spectra [54]. Once again, interesting trends are noted.…”
Section: Resultsmentioning
confidence: 99%
“…To quantify differences in flocculation (i.e., both agglomeration and aggregation), relative changes in integrated area ((t i −t 0 )/t 0 , %) are calculated from LSPR spectra [54]. Once again, interesting trends are noted.…”
Section: Resultsmentioning
confidence: 99%
“…40,41 Data from complementary techniques such as XPS and NMR suitable for study the binding sites of phosphonic and thiol ligands to AuNPs, compare favorably with our results. [42][43][44]…”
Section: Characterization Of Aunps-mpamentioning
confidence: 99%
“…The overall objective of this study is the development of a model system for solutionphase SE-2D IR spectroscopy. Three specific objectives, namely;(1)…”
mentioning
confidence: 99%
“…nanoparticles were then functionalized with thioctic acid (TA) (pKa (COOH) = 4.75-5.301 ), 6-mercaptohexanoic acid (MHA) (pKa (COOH) = 4.8 1 ), or 11-mercaptoundecanoic acid (MUA) (pKa (COOH) = 4.6-5.0 1 ) (Sigma Aldrich). For each self-assembled monolayer, 1 mL of 10 mM ligand (TA, MHA, or MUA) in ethanol was added to 10 mL of a 10 nM nanoparticle solution and stirred at 500 RPM for at least 60 hours at room temperature.…”
mentioning
confidence: 99%
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