Supramolecular Approach for Sensing Caffeine by Fluorescence

Siering, Carsten; Beermann, Bernd; Waldvogel, Siegfried R.

doi:10.1080/10610270500310479

Cited by 31 publications

(17 citation statements)

References 35 publications

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“…16 Examples of fluorescent sensors for caffeine have been reported in the literature, mostly based on hydrogen bonding in organic solvents. [17][18][19][20][21] A fluorimetric method for caffeine sensing in water, which exploits the interaction between trisodium 8-hydroxypyrene-1,3,6-trisulfonate (HPTS) and caffeine, has recently been reported by our group. 22 HPTS was successfully used to quantify caffeine in common beverages and drugs.…”

Section: Introductionmentioning

confidence: 99%

A ratiometric fluorescence sensor for caffeine

et al. 2012

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The dye disodium 3,4:3',4'-bibenzo[b]thiophene-2,2'-disulfonate can be used as a molecular probe for the fluorimetric detection of caffeine in aqueous solution. The fluorescence response is attributed to non-covalent interactions of caffeine with the dye in the ground state and in the excited state. The bimodal interaction allows performing ratiometric measurements with very good selectivity over structurally related analytes. The dye was also used to develop a simple test strip for the visual differentiation of normal and decaffeinated coffee with a standard UV lamp.

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Section: Introductionmentioning

confidence: 99%

A ratiometric fluorescence sensor for caffeine

et al. 2012

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“…This gives a rapid and easy insight into the binding behavior of synthetic caffeine receptors and their guests. This was the first approach proposed by Siering et al [120].…”

Section: Development Of Receptorsmentioning

confidence: 96%

Molecular recognition of caffeine in solution and solid state

Sahoo

2015

Bioorganic Chemistry

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“…Association constant/log K ass caffeine (3) theophylline (4) trimethyluric acid (5) [10] To obtain controlled conditions, anhydrous toluene was used as solvent. The concentration of the receptors was 1 mm.…”

Section: Entry Receptormentioning

confidence: 99%

“…[10] The affinity of chirally modified receptors towards caffeine in dichloromethane has been investigated by CD spectroscopy, which yielded values of the order of 50 000 m…”

mentioning

confidence: 99%

Extraction of Radio‐Labelled Xanthine Derivatives by Artificial Receptors: Deep Insight into the Association Behaviour

Bomkamp

Siering

Landrock

et al. 2007

Chemistry A European J

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Association constants for the interaction of almost insoluble substrates with triphenylene ketal-based receptors in toluene have been determined by means of an extraction method employing the corresponding radio-labelled substrates. Flexible and more polar receptors tend to aggregate and exhibit inferior extraction qualities. Binding constants in toluene were found to be in the range 10(5)-10(7) m(-1), which is significantly higher than in dichloromethane. X-ray analyses indicate the direct participation of a water molecule in the binding process, which may account for the surprisingly small effect of moisture in the solvent on the stability of the complexes.

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Supramolecular Approach for Sensing Caffeine by Fluorescence

Cited by 31 publications

References 35 publications

A ratiometric fluorescence sensor for caffeine

A ratiometric fluorescence sensor for caffeine

Molecular recognition of caffeine in solution and solid state

Extraction of Radio‐Labelled Xanthine Derivatives by Artificial Receptors: Deep Insight into the Association Behaviour

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