Adsorption of guanine at the interface electrode-acetic buffer solution and its influence on zinc cation electroreduction

Gugała-Fekner, Dorota

doi:10.1007/s00706-016-1825-4

Cited by 5 publications

(10 citation statements)

References 28 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…Figure 3 indicates the occurrence of frequency dispersion for 6•10 − 3 M thymine. A similar effect was observed in all the tested concentrations of nitrogen bases found in DNA [7,[11][12][13][14][15]. It indicates absence of adsorption equilibrium in the applied experimental conditions.…”

Section: Analysis Of Experimental Datasupporting

confidence: 75%

Comparison of adsorptive properties of adenine, cytosine, guanine and thymine in acetate buffer with pH 4.

Gugała-Fekner

2022

Preprint

Self Cite

View full text Add to dashboard Cite

Adsorptive properties of adenine, cytosine, guanine and thymine in the acetate buffer at pH = 4 were determined using experimental data obtained from measurements of the differential volume of the double layer interface, the zero charge potential and the surface tension at this potential. The possibility of determining parameters Emax and qmax and the bell-shaped relative excess amounts indicate the physical nature of adsorptions of the nitrogen bases in question on the mercury electrode, which must be associated with the fact that the adsorbed particles exhibit vertical or diagonal orientation.

show abstract

Section: Analysis Of Experimental Datasupporting

confidence: 75%

Comparison of adsorptive properties of adenine, cytosine, guanine and thymine in acetate buffer with pH 4.

Gugała-Fekner

2022

Preprint

Self Cite

View full text Add to dashboard Cite

show abstract

“…A similar character of adsorption of adenine on the mercury electrode was observed in buffer with pH 4 [26] and guanine at pH 4 and 6 [27]. …”

Section: Resultssupporting

confidence: 55%

“…The physical character of the adsorption of adenine on the mercury electrode is evidenced by: (1) the possibility of determination of the charge and maximum adsorption potential in both examined buffers, and (2) the fact that the curves showing the dependence of relative excess values against the potential are bell-shaped. A similar character of adsorption of adenine on the mercury electrode was observed in buffer with pH 4 [ 26 ] and guanine at pH 4 and 6 [ 27 ].…”

Section: Discussionsupporting

confidence: 55%

See 1 more Smart Citation

Adsorption of adenine on mercury electrode in acetate buffer at pH 5 and pH 6 and its effect on electroreduction of zinc ions

Gugała-Fekner

2018

Monatsh Chem

Self Cite

View full text Add to dashboard Cite

The measurements of double-layer differential capacitance, zero charge potential, and surface tension at that potential allowed us to examine the adsorption properties of adenine on the mercury surface from the neat buffer solution, i.e., the acetate buffer at pH 5 and pH 6. The systems obtained at such pH values were close to physiological fluids in their characteristics. The adsorption energy and interaction constants were determined using Frumkin isotherm and virial isotherm. It was shown that the adenine molecule is adsorbed on the mercury electrode with its negative pole against the electrode surface. Using the cyclic voltammetry technique and measuring Faraday impedance, an increasing effect of adenine on the kinetics of zinc ion electroreduction was found. In both buffer solutions, the neutral adenine molecules can form on the surface of the working electrode, an unstable active complex with depolarizer ions, facilitating electron exchange.Graphical abstract

show abstract

“…As we know, the dispersions of the modified materials for the modification of electrodes are more attractive in practical applications. So, we present a new reduction route for the synthesis of βCD/RGO based composites (βCD/IRGO) based on the typical IL of 1‐butyl‐3‐methylimidazolium hexafluorophosphate which molecular structure was shown in Figure S1. ILs are referred to as “green” solvents because they have practically no vapor pressure and high thermal stability.…”

Section: Introductionmentioning

confidence: 99%

Facile Synthesis of Cyclodextrin Functionalized Reduced Graphite Oxide with the Aid of Ionic Liquid for Simultaneous Determination of Guanine and Adenine

et al. 2018

View full text Add to dashboard Cite

Here, a facile reduction approach for synthesis of β‐cyclodextrin functionalized reduced graphite oxide with the aid of ionic liquid (βCD/IRGO) was reported. This strategy relies on the simple mixing of pre‐pared aqueous βCD/GO with ionic liquid (IL) at high temperatures, which can bring about a well dispersed βCD/RGO in the utilized IL (βCD/IRGO) with a synchronous evaporation of water. The as‐prepared βCD/IRGO product can be stably re‐dispersed in water (up to 1.0 mg/mL) after washed and dried. And the presented βCD/IRGO composites possess high supramolecular recognition capability and good conductivity for realizing enhanced electrochemical response towards simultaneous detection of guanine and adenine compared with other βCD/carbon (RGO or carbon nanotube) based composites. In the presence of one of analysts, the linear response ranges is 0.03–10.0 μM for guanine and 0.02–7.0 μM for adenine, respectively, with detection limit of 0.01 μM for both guanine and adenine (S/N=3). This ease of making the βCD/IRGO composite will open up possibilities of its diversifier applications.

show abstract

Adsorption of guanine at the interface electrode-acetic buffer solution and its influence on zinc cation electroreduction

Cited by 5 publications

References 28 publications

Comparison of adsorptive properties of adenine, cytosine, guanine and thymine in acetate buffer with pH 4.

Comparison of adsorptive properties of adenine, cytosine, guanine and thymine in acetate buffer with pH 4.

Adsorption of adenine on mercury electrode in acetate buffer at pH 5 and pH 6 and its effect on electroreduction of zinc ions

Facile Synthesis of Cyclodextrin Functionalized Reduced Graphite Oxide with the Aid of Ionic Liquid for Simultaneous Determination of Guanine and Adenine

Contact Info

Product

Resources

About