Electrocatalytic oxidation and the simultaneous determination of guanine and adenine on (2,6-pyridinedicarboxylic acid)/graphene composite film modified electrode

A new electrochemical sensor for the simultaneous determination of guanine and adenine: using a NiAl-layered double hydroxide/graphene oxide-multi wall carbon nanotube modified glassy carbon electrode

“…Table 1 shows a comparison of the proposed electrochemical method and the other modied electrodes in the previously reported methods [50][51][52][53][54][55][56][57] for GA and AD determination. The proposed sensor was found to have a good detection limit and linear response range.…”

Detection of Guanine and Adenine Using an Aminated Reduced Graphene Oxide Functional Membrane-Modified Glassy Carbon Electrode

“…In order to overcome the aforementioned shortcomings, many materials are used to modify electrodes, including the carboxylation of multi-walled carbon nanotubes [ 14 ], mesoporous carbon [ 15 ], and TiO 2 nanobelts [ 16 ]. Recently, different functional membranes, such as graphene–ionic liquid–chitosan composites [ 17 ], graphene–Nafion composite membranes [ 18 ], pyridinedicarboxylic acid-graphene composite films [ 19 ], ionic liquids coated nanocrystalline zeolite materials [ 20 ], ruthenium hexachloroplatinate (RuPtCl 6 ) inorganic membranes [ 21 ], titanium dioxide nanofibers-graphene oxide nanosheets nanocomposites [ 22 ], multi-walled carbon nanotubes-Fe 3 O 4 -polydopamine-Ag nanocomposites [ 23 ], carboxymethyl cellulose-halloysite nanotubular-carboxyl-functionalized multi-carbon nanotubes composites [ 24 ], and bimemtallic nanoparticles [ 25 , 26 ], are becoming more favorable as they achieve better electrochemical properties.…”

Construction of 5‐amino‐1,10‐phenanthroline‐Fe(II) Nanostructures on Glassy Carbon Electrode: Simultaneous and Selective Determination of Purine and Pyrimidine DNA Bases

“…Although, electrocatalytic oxidation of purine DNA bases on modified solid electrode surfaces has been often detected 30, 31, electrochemical determination of pyrimidine bases has been rarely reported 32. Due to high oxidation potential, low electron transfer rate and high fouling effect of pyrimidine bases 9, 22, it is difficult to obtain the oxidation responses with high sensitivity and repeatability for the last ones.…”