Rosmarinic acid determination using biomimetic sensor based on purple acid phosphatase mimetic

Santhiago, Murilo; Peralta, Rosely A.; Neves, Ademir; Micke, Gustavo Amadeu; Vieira, Iolanda Cruz

doi:10.1016/j.aca.2008.02.050

Cited by 28 publications

(16 citation statements)

References 34 publications

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“…Some unusual electrochemical techniques have been developed, such as that reported by Franzoi et al [72], which uses a biosensor based on laccase from the fungus Aspergillus oryzae and the ionic liquid 1-n-butyl-3-methylimidazolium hexafluorophosphate (BMIPF6) to determine RA in M. officinalis by square wave voltammetry. Additionally, a synthetic heterodinuclear Fe(III)Zn (II) complex, a biomimetic complex of purple acid phosphatases, has also shown to be effective in determining RA in plant extracts [60]. The amount of RA determined by these techniques was in accordance with capillary electrophoresis data.…”

supporting

confidence: 53%

“…A P. frutescens extract, separated by supramolecular formation using flavocommelin and magnesium acetate aqueous solution followed by solvent extraction (ethyl acetate and water), yielded RA with 62.9 ± 4.5 % purity [58]. Analytical techniques used to determine RA include capillary electrophoresis [59], electromechanical [60], spectroscopical [61][62][63][64], and chromatographic methods [65][66][67][68][69][70][71]. Some unusual electrochemical techniques have been developed, such as that reported by Franzoi et al [72], which uses a biosensor based on laccase from the fungus Aspergillus oryzae and the ionic liquid 1-n-butyl-3-methylimidazolium hexafluorophosphate (BMIPF6) to determine RA in M. officinalis by square wave voltammetry.…”

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confidence: 99%

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Rosmarinic Acid – Pharmaceutical and Clinical Aspects

et al. 2016

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The natural compound RA [(R)-(+)-rosmarinic acid, l " Fig. 1 is a common ester derived from caffeic acid and (R)-(+)-3-(3,4-dihydroxyphenyl)lactic acid that can accumulate in high amounts in many plant species. RA is abundant in several medicinal plants of the Lamiaceae family, such as rosemary (Rosmarinus officinalis L.), spearmint (Mentha spp.), and lemon balm (Melissa officinalis L.), and also in plants used in traditional Chinese medicine, such as Perilla frutescens (L.) Britton, Salvia miltiorrhiza Bunge, and Rabdosia rubescens (Hemsl.) H. Hara. Many studies have reported the role of RA in the biological activity of these plants as well as its pharmaceutical and biotechnological

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supporting

confidence: 53%

mentioning

confidence: 99%

Rosmarinic Acid – Pharmaceutical and Clinical Aspects

et al. 2016

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“…Moreover, biomimetic catalysts are often less expensive than enzymes and can lead to sensors that are more stable against time, pH and temperature variations. The term "enzyme-less biosensor" has been chosen as a general term to define this type of sensors [11][12][13][14][15].…”

Section: Introductionmentioning

confidence: 99%

Monocopper complex based on N-tripodal ligand immobilized in a Nafion® film for biomimetic detection of catechols: Application to dopamine

Boulkroune

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Chibani

et al. 2016

Electrochimica Acta

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complex based on Ntripodal ligand immobilized in a Nafion® film for biomimetic detection of catechols: Application to dopamine. Electrochimica Acta, Elsevier, 2016, 221, pp.80-85 AbstractA complex based on bis-pyrazolyl N-tripodal ligand known to present a good catalytic activity for the oxidation of 3,5-di-tert-butylcatechol is used to prepare a novel biomimetic sensor for the determination of catechol derivatives. The modified electrode prepared by encapsulation of the complex in a Nafion ® film leads to an electrochemical signal 4.4 times higher than with a glassy carbon electrode for dopamine detection in pH 7 medium. After optimization of the conditions used to immobilize the catalyst on the electrode surface, a calibration curve was obtained with linearity in the range of 30 to 320 mol L -1 and a detection limit of 8 mol L -1 .The sensor was not affected by ascorbic acid and uric acid in similar concentrations to dopamine and its electrochemical response was stable after 40 determinations. The biomimetic sensor can also be used for the detection of other catechol derivatives.

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“…The developed biosensor reports appropriate sensitivities for phenolic secondary metabolites analysis from in vitro cultivated plants, even providing a high signal resolution, since it is free of chemical and electrochemical interferences. The linearity range, limit of detection (LOD) and Michaelis–Menten apparent constant are in agreement with the values reported in recent publications (Yi et al ., ; Carvalho et al ., ; Gomes et al ., ; Santhiago et al ., ; Franzoi et al ., ).…”

Section: Resultsmentioning

confidence: 99%