Preliminary Study of CdTe Quantum Dots Applied in DNA Sensors

Adsorption Kinetics of WS2 Quantum Dots onto a Polycrystalline Gold Surface

“…Molecules with appropriate geometry capable of organizing in two dimensions and with ability to bond to a surface are potential candidates for adsorption. However, the most studied adsorption-driven self-assembly chemistry is the adsorption of alkanethiols, sulfides, and disulfides monolayers onto gold surface to form a self-assembled monolayer (SAM). − Such architectures are explicitly preferred for the development of biosensors and bioelectronics circuitries, because of the ease of miniaturization, the high degree of mimicry with cellular environment (albeit the ordered structure), ease of immobilizing biological molecules, and, the facile procedure for SAM formation. ,, Nonetheless, this chemistry has been well-exploited for the self-assembly of inorganic semiconducting QDs and nanoparticle superlattices onto a noble metal (preferably gold) surface as well. ,,− Interestingly, all of these approaches prefer either a sulfur-containing capping agent or a bifunctional sulfur-based linker. , Such linkers are capable of providing better control over interparticle interaction and act as a building block on the substrate while they can also disorder the lattice.…”