A “turn on” fluorometric and colorimetric probe based on vinylphenol-BODIPY for selective detection of Au(III) ion in solution and in living cells

Jantra, Suthikorn; Palaga, Tanapat; Rashatasakhon, Paitoon; Sukwattanasinitt, Mongkol; Wacharasindhu, Sumrit

doi:10.1016/j.dyepig.2021.109341

Cited by 15 publications

(2 citation statements)

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“…The limit of detection (LOD), depending on 3SD/K (where SD is the standard deviation of the blank and K is the slope of the plot), could be estimated to 33 ppb (167 nM) with R 2 = 0.9911 (inset of Figure 4 ). These results indicate that the DHP-OH probe is comparable to other sensitive fluorescent sensors for Au 3+ in aqueous media ( Figure S14 ) [ 31 , 32 , 34 , 35 , 36 , 40 , 41 , 42 ].…”

Section: Resultssupporting

confidence: 54%

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A Dihydropyridine Derivative as a Highly Selective Fluorometric Probe for Quantification of Au3+ Residue in Gold Nanoparticle Solution

Paisuwan

Sukwattanasinitt

Tobisu

et al. 2022

Sensors

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Novel dihydroquinoline derivatives (DHP and DHP-OH) were synthesized in one pot via a tandem trimerization-cyclization of methylpropiolate. DHP and DHP-OH possess strong blue fluorescence with high quantum efficiencies over 0.70 in aqueous media. DHP-OH displays a remarkable fluorescence quenching selectively to the presence of Au3+ through the oxidation of dihydropyridine to pyridinium ion as confirmed by NMR and HRMS. DHP-OH was used to demonstrate the quantitative analysis of Au3+ in water samples with the limit of detection of 33 ppb and excellent recovery (>95%). This fluorescent probe was also applied for the determination of Au3+ residue in the gold nanoparticle solution and a paper-based sensing strip for the on-site detection of Au3+.

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Section: Resultssupporting

confidence: 54%

“…Notably, various fluorescent probes for a Au 3+ sensing system have been developed from derivatives of rhodamine [ 31 ], julolidine [ 32 ], naphthalimide [ 33 ], spirobifluorene [ 34 ], and boron dipyrromethene (BODIPY) [ 35 , 36 ]. However, these compounds were prepared from complicated and expensive starting chemicals.…”

Section: Introductionmentioning

confidence: 99%