Fabrication and characterization of highly-ordered Zinc Oxide nanorods on gold/glass electrode, and its application as a voltammetric sensor

Sensitive Voltammetric Amoxicillin Sensor Based on TiO2 Sol Modified by CMK‐3‐type Mesoporous Carbon and Gold Ganoparticles

“…To estimate the efficiency of electrode surface modification cyclic voltammetric measurements at bare GE and TiO 2 /CMK‐3/AuNPs/Nafion sensor in 2 mM K 3 Fe(CN) 6 at different scan rates (from 20 to 300 mV s −1 ) were carried out. The Randles‐Sevcik formula was used : …”

“…The sensitivity of developed sensor was higher in comparison with large majority of other reported voltammetric and amperometric sensors . Taking into account the detection limit of developed sensor is lower than sensors described in literature . The last parameter–linear response range is comparable or slightly narrower than linear ranges for other electrochemical sensors.…”

“…One of the most popular compound in this group is amoxicillin (AMX), ((2 S ,5 R ,6 R )‐6{[(2 R )‐2‐amino‐2‐(4‐hydroxylphenyl)‐acetyl]amino}‐3,3‐dimethyl‐7‐oxo‐4‐thia‐1‐azabicyclo[3.2.0] heptane‐24‐carboxylic acid), with a four‐membered lactam ring fused to a thiazolidine ring and an acyl side ring attached to the bicyclic nucleus, which has a profound effect on chemical and pharmacological properties of AMX . AMX is widely used in the treatment of different kinds of bacterial infections, like ear, bladder infections, gonorrhea, pneumonia or E. coli and Salmonella infections . However it can cause serious side‐effects on human health like nausea, vomiting, diarrhea, loss of appetite, rashes, and antibiotic‐associated colitis .…”

“…To achieve the required linear range, zinc oxide nanorods grown directly on gold/glass electrode were proposed by Hatamie et al . . A novel electrochemiluminescence method based on the use of graphite electrode in the presence of cetyltrimethyl ammonium bromide with the low detection limit of 5 ⋅ 10 −9 g mL −1 was described .…”

“…Brahman et al reported on the development of sensitive voltammetric method for the determination of AMX at polyaniline film modified carbon paste electrode (CPE) in micellar media [21]. To achieve the required linear range, zinc oxide nanorods grown directly on gold/glass electrode were proposed by Hatamie et al [4]. A novel electrochemiluminescence method based on the use of graphite electrode in the presence of cetyltrimethyl ammonium bromide with the low detection limit of 5 · 10 À9 g mL À1 was described [22].…”