Enhancing the chloramphenicol sensing performance of Cu–MoS₂ nanocomposite-based electrochemical nanosensors: roles of phase composition and copper loading amount

Abstract

In this work, we clarify the roles of phase composition and copper loading amount on the CAP sensing performance of Cu–MoS2 nanocomposite-based electrochemical nanosensors.

ZnO/ZnFe2O4 nanocomposite-based electrochemical nanosensors for the detection of furazolidone in pork and shrimp samples: exploring the role of crystallinity, phase ratio, and heterojunction formation

“…Recent studies show that the rational design of nanostructures for electrochemical sensors is one of the crucial strategies for improving analytical performance. 1,2 For ZnFe 2 O 4 -based hybrid nanostructures, the structure, phase composition, component content, and distribution of Zn 2+ , Fe 3+ are key factors to decide directly the conductivity, catalytic activities, and adsorption efficiency toward analytes. In the present study, some structures of ZnO/ZFO nanocomposites with different crystallinities and phase ratios were designed to investigate the effect of crystallinity and phase ratio as well as ZnO/ZFO heterojunction formation on the FZD sensing performance.…”

“…In recent years, the design of advanced electrochemical sensors based on nanomaterial-modified electrodes for controlling and monitoring contaminants in food has received growing attention. 1,2 Compared with traditional chemical-physical instrumentation methods, an electrochemical sensor is more advantageous owing to rapid and low-cost operation, on-site detection, high sensitivity, high precision, and selectivity, as well as good stability and reproducibility for the effective determination of chemical residues. [3][4][5][6] Especially, the portable electrochemical sensors can be directly applied for on-site and real-time applications and do not require the high-skilled operator, sophisticated equipment, and costly instruments.…”

“…[9][10][11] The addition of functional nanomaterials plays a critical role in the construction of high-performance electrochemical sensing platforms for reliably detecting target molecules in complex food matrices. 1,2 Among nanomaterials, spinel oxide nanostructures are favorite candidates for the design of electrochemical sensors due to their advantages such as chemical stability, easy fabrication, controllable size, excellent catalytic properties, and facilitated electron transfer kinetics. [12][13][14] More particularly, the significant advances in the design of functional spinel nanostructures have opened new possibilities for the development of electrochemical sensors.…”

A review on nanomaterial-based electrodes for the electrochemical detection of chloramphenicol and furazolidone antibiotics

“…The designed sensor was used to detect CP in human urine samples. In another study, Anh et al 100 developed a copper-molybdenum disulfide (Cu-MoS 2 ) modified with a screen-printed electrode (SPE) for the detection of CP in food samples. The nanocomposite electrode exhibits a wide linear concentration range with a detection limit of 0.19 μM (Table 4).…”

Development of a sustainable nanosensor using green Cu nanoparticles for simultaneous determination of antibiotics in drinking water

“…The pH value was chosen as previously reported in other studies for the determination of antibiotics. 59,60 Next, the CuNP solution was sonicated for 5 min to avoid any aggregation, and various volumes were dropped on the SPCE surface and then dried at 80 C for 5 min. The stability of sensors prepared with different volumes of CuNPs (2 mL, 4 mL, and 6 mL) was electrochemically assessed, and the volume showing the best stability was selected for the next experiments.…”