Selective extraction of thiol-containing peptides in seawater using Tween 20-capped gold nanoparticles followed by capillary electrophoresis with laser-induced fluorescence

Shen, Chien‐Chih; Tseng, Wei‐Lung; Hsieh, Ming‐Mu

doi:10.1016/j.chroma.2011.11.057

Cited by 27 publications

(16 citation statements)

References 40 publications

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“…Capillary zone electrophoresis was used by various researchers (Kubalczyk & Bald, 2009;Li, Cheng & Tseng, 2009;Mendoza et al, 2009;Yan et al, 2009;Chang & Tseng, 2010;Shen, Tseng & Hsieh, 2012;Tsardaka et al, 2013;Wang et al, 2014a;Wang et al, 2014b), but it does not appear to offer a specific advantage in terms of sensitivity when used alone without derivatization (Kubalczyk & Bald, 2009;Mendoza et al, 2009;Yan et al, 2009;Tsardaka et al, 2013;Wang et al, 2014a;Wang et al, 2014b). However, it surely allowed shorter analysis times.…”

Section: Capillary Electrophoresis In Gsh Determinationmentioning

confidence: 99%

“…They greatly enhanced the sensitivity to reach an unprecedented LOD (1 × 10 −11 M) by the addition of polymers to the buffer. This strategy will be discussed in more details in Section 2.3.6 (Shen, Tseng & Hsieh, 2012).…”

Section: Capillary Electrophoresis In Gsh Determinationmentioning

confidence: 99%

“…Much lower LOD (0.1 pM) was reported by the same group when derivatization followed by online stacking was employed (Shen, Tseng & Hsieh, 2012). This was achieved through using electro-osmotic flow that was greater than the effective electrophoretic mobility of OPA-derivatized peptides to make these negatively charged derivatives enter the neutral poly(ethylene oxide) zone, thus enhancing their separation.…”

Section: Capillary Electrophoresis In Gsh Determinationmentioning

confidence: 99%

“…Poly(ethylene oxide) gets adsorbed on the capillary leading to decrease in electro-osmotic flow mobility, which prolongs the migration time, thus separating closely adjacent peaks. It is to be noted that analysis time approached 8 h (Shen, Tseng & Hsieh, 2012). (Mendoza et al, 2009) a Analytes determined in ng/g.…”

Section: Capillary Electrophoresis In Gsh Determinationmentioning

confidence: 99%

“…The reported CE methods were applied to biological samples with great diversity ranging from plants (Kubalczyk & Bald, 2009;Mendoza et al, 2009;Zhang & Sun, 2009), probiotic bacteria (Musenga et al, 2007), yeast (Tsardaka et al, 2013), and animals (Wang et al, 2009;Chang & Tseng, 2010;Chen et al, 2010;Wu et al, 2010;Shen, Tseng & Hsieh, 2012;Ji, Ma & Sun, 2013;Hodáková et al, 2015), and in one report, both animal and plant applications on tomato and human serum (Yan et al, 2009). Two methods reported success in assaying GSH in individual cells with high sensitivity (Ji, Ma & Sun, 2013;Wang et al, 2014a;Wang et al, 2014b).…”

Section: Sample Types and Preparation In Cementioning

confidence: 99%

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Analytical methods for determination of glutathione and glutathione disulfide in pharmaceuticals and biological fluids

Hamad

Elshahawy

Negm

et al. 2020

Reviews in Analytical Chemistry

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AbstractGlutathione is a natural tripeptide that plays a major role in different physiological processes in the human body. Determination of glutathione in different body fluids and tissues is essential for early diagnosis and follow-up of various diseases. The assay of glutathione is problematic because of the high polarity, the limited stability, and the aliphatic structure, which lacks the appropriate chromophore for UV detection. A number of methods have been reported for determination of glutathione using different techniques. High-performance liquid chromatography was employed in both reverse phase and hydrophilic interaction modes. Electrochemical methods exploited the redox activity of glutathione to allow for quantification by different electrodes after chemical modification, including glassy carbon, carbon paste, and nanocomposite electrodes. Capillary zone electrophoresis was used with less need for derivatization which makes it simpler, faster, and more economic. A number of nanosensors and probes have been developed to assay glutathione in biological fluids using semiconductor nanoparticles, quantum dots, genetically engineered green fluorescent probes, and new derivatives of known dye classes. This work is an updated review of the methods of analysis of glutathione and glutathione disulfide in pharmaceuticals and biological fluids with more emphasis on the technical problems and the assay artifacts.

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Section: Capillary Electrophoresis In Gsh Determinationmentioning

confidence: 99%

Section: Capillary Electrophoresis In Gsh Determinationmentioning

confidence: 99%

Section: Capillary Electrophoresis In Gsh Determinationmentioning

confidence: 99%

Section: Capillary Electrophoresis In Gsh Determinationmentioning

confidence: 99%

Section: Sample Types and Preparation In Cementioning

confidence: 99%

See 3 more Smart Citations

Analytical methods for determination of glutathione and glutathione disulfide in pharmaceuticals and biological fluids

Hamad

Elshahawy

Negm

et al. 2020

Reviews in Analytical Chemistry

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Recent Nanomaterials‐Based Separation Processes

Fresco‐Cala

López‐Lorente

Soriano

et al. 2019

Handbook of Smart Materials in Analytical Chemistry

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Recent developments in capillary and microchip electroseparations of peptides (2011–2013)

Kašička

2013

Electrophoresis

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The review presents a comprehensive survey of recent developments and applications of capillary and microchip electroseparation methods (zone electrophoresis, ITP, IEF, affinity electrophoresis, EKC, and electrochromatography) for analysis, isolation, purification, and physicochemical and biochemical characterization of peptides. Advances in the investigation of electromigration properties of peptides, in the methodology of their analysis, including sample preseparation, preconcentration and derivatization, adsorption suppression and EOF control, as well as in detection of peptides, are presented. New developments in particular CE and CEC modes are reported and several types of their applications to peptide analysis are described: conventional qualitative and quantitative analysis, determination in complex (bio)matrices, monitoring of chemical and enzymatical reactions and physical changes, amino acid, sequence and chiral analysis, and peptide mapping of proteins. Some micropreparative peptide separations are shown and capabilities of CE and CEC techniques to provide relevant physicochemical characteristics of peptides are demonstrated.

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Selective extraction of thiol-containing peptides in seawater using Tween 20-capped gold nanoparticles followed by capillary electrophoresis with laser-induced fluorescence

Cited by 27 publications

References 40 publications

Analytical methods for determination of glutathione and glutathione disulfide in pharmaceuticals and biological fluids

Analytical methods for determination of glutathione and glutathione disulfide in pharmaceuticals and biological fluids

Recent Nanomaterials‐Based Separation Processes

Recent developments in capillary and microchip electroseparations of peptides (2011–2013)

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