(Bio)Sensing Materials: Quantum Dots

Development of an electrochemical sensor based on ternary oxide SiO2/Al2O3/SnO2 modified with carbon black for direct determination of clothianidin in environmental and food samples

“…Thus, carbon black stands out, for presenting an increase in electrocatalytic capacity and electroactive area of the electrode, enabling maximization of the concentration on the electrode surface and facilitating the competition of electronic transfer in the processes of oxidation or reduction of the species of interest. [37][38][39][40] In this perspective, metallic nanoparticles [41][42][43] and especially materials based on oxides and mixed oxides 44,45 stand out in surface area due to their unique electroactivity and electrocatalytic properties.…”

Two-Dimensional Quantum Dots: From Photoluminescence to Biomedical Applications

“…Generally, there are two types of approaches to produce 2DQDs: (i) top-down methods, in which a macroscopic layered 3D crystal is exfoliated and broken down to 2DQDs; (ii) bottom-up methods, in which 2DQDs are chemically grown from properly chosen molecules under suitable conditions [34,[50][51][52]. The particle size, edge type, bandgap extension, presence or absence of functionalization, are important characteristics of QDs that can be tailored by choosing different strategies according to the desired properties and applications [53]. It has been demonstrated that the PL property of 2DQDs is one of the most fascinating characteristics of these nanomaterials.…”