Directed self-assembly of Ag+-deposited MoS2 quantum dots for colorimetric, fluorescent and fluorescence-lifetime sensing of alkaline phosphatase

A facile strategy of using MoS2 quantum dots for fluorescence-based targeted detection of nitrobenzene

“…Hence, it is pivotal to modify liquid phase exfoliation for the effective extraction of the monolayer of MoS 2 nanostructure. 18–22…”

“…Hence, it is pivotal to modify liquid phase exfoliation for the effective extraction of the monolayer of MoS 2 nanostructure. [18][19][20][21][22] Herein, we introduce a simple and environmentally friendly route to prepare MoS 2 quantum dots (QDs) by ion intercalation into the bulk material in a suitable solvent under optimized conditions without any external stimulation (Scheme 1). We have successfully exfoliated heterodimensional MoS 2 QDs using NaOH in the presence of a polar volatile solvent, isopropyl alcohol (IPA), and contrive the MoS 2 QDs for the label-free turnoff uorescent sensor.…”

Inner filter effect-based red-shift and fluorescence dual-sensor platforms with sulfur quantum dots for detection and bioimaging of alkaline phosphatase

“…24 ALP was reported as an important biomarker for the diagnosis of various diseases, such as bone diseases, breast and prostatic cancer, diabetes, liver dysfunction, intestinal diseases, heart failure, etc. 25 Many uorescent probes have been successfully used for ALP detection, including folic acid functionalized molybdenum oxide quantum dots (FA-MoO x QDs), 26 L-histidine (His) functionalized zeolite imidazole framework ZIF-8 (His@-ZIF-8), 27 copper nanoclusters (Cu NCs), 28 MoS 2 QDs, 29 and ZnS QDs. 30 However, these probes suffer from the drawbacks of poor photostability and multistep procedures, suggesting the necessity to develop a plain uorescent probe for ALP detection through uorescence sensing.…”

Dichalcogenide and Metal Oxide Semiconductor-Based Composite to Support Plasmonic Catalysis

“…Simulations of AgNPs when attached to MoS 2 showed that strong excitation-plasmon coupling of the silver lattice with MoS 2 layers can occur, 32,33 resulting in the altering of the density of states (DOS) and increasing the hot electrons' lifetimes which can potentially improve plasmonic catalysis reaction rates. 34,35 Moreover, ZnO and MoS 2 have lattice constants that are very well matched, which makes them ideal for interfacial carrier transfer in ZnO/MoS 2 heterostructures. 36 Here we study the effect of combining TMDCs and metal oxides on a model plasmonic catalysis reaction.…”

“…MoS 2 can bind strongly to plasmonic metals such as Ag due to the favorable bonding between S (sulfide atom) and the Ag metal atoms. Simulations of AgNPs when attached to MoS 2 showed that strong excitation-plasmon coupling of the silver lattice with MoS 2 layers can occur, , resulting in the altering of the density of states (DOS) and increasing the hot electrons’ lifetimes which can potentially improve plasmonic catalysis reaction rates. , Moreover, ZnO and MoS 2 have lattice constants that are very well matched, which makes them ideal for interfacial carrier transfer in ZnO/MoS 2 heterostructures …”