Molecularly imprinted polymer on ionic liquid-modified CdSe/ZnS quantum dots for the highly selective and sensitive optosensing of tocopherol

A novel molecularly imprinted polymer thin film at surface of ZnO nanorods for selective fluorescence detection of para-nitrophenol

“…11 To date, due to the vast surface area, physical robustness and thermal stability, nanosphere and nanorod have been widely used in the surface imprinting process. 17 Zhang's group has introduced a uorescence nanosensing material by anchoring the MIPs layer on the surface of CdTe quantum dots for detecting cytochrome c. 18 Our group has prepared molecularly imprinted silica nanospheres embedded mercaptosuccinic acid-coated CdTe QDs for selective recognition of l-cyhalothrin and reported a facile and general method for preparing an imprinted polymer thin shell with Mndoped ZnS QDs at the surface of silica nanoparticles for detecting 2,4-dichlorophenol. Among them, MIPs-based uorescence sensors have been widely used for the determination of different substances, meanwhile, uorescent recognition methods have been widely used as powerful techniques due to their low cost, rapid response, low detection limit, and high sensitivity.…”

Recent advances in molecularly imprinted polymers in food analysis

“…Monolithic packings–polymers are used for in situ columns, which are ready for use right after the removal of the template . Next, coatings are also a general form, and these materials are opposite to the structure on an appropriate support of fibers, beads (magnetic nanoparticles, quantum dots, or gold nanoparticles), carbon nanotubes, or films for hybrid materials with silane chemistry or surface‐grafting‐to approaches. Additionally, multistep or one‐step swelling and polymerization methods, electrochemical polymerization, electrodeposition, grafting on monolithic column, photografting, and sol–gel methods have also been used.…”

“…MIP‐based sensing systems offer great advantages over conventional analytical techniques; these include a high specificity for real‐time analysis in complex mixtures, low cost, and simple operation without the need for extensive sample pretreatment. MIPs have already been applied to many different kinds of optical sensors, such as field effect devices, quartz crystal microbalances, impedance determination, conductometric measurements, capacitance measurements, amperometric measurements, fluorescence measurements, spectroscopic measurement, chemiluminescence (CL), modified CdSe/ZnS Quantum dot (QDs), and biomimetic enzyme‐linked immunosorbent assay (BELISA) method . The MIP‐based mimetic sensors are ongoing, and some highlighted applications in food are listed in Table …”

A novel quantum dots-labeled on the surface of molecularly imprinted polymer for turn-off optosensing of dicyandiamide in dairy products

“…Li et al used MIP-embedded CdSe QDs for highly selective and sensitive optosensing of pyrethroids . Recently, we prepared MIPs on the surface of ionic liquid-modified CdSe/ZnS QDs (Liu et al, 2012), MIP sensors based on QDs and graphene (Liu et al, 2013a), and a dual-function QDs@MIP sensor for highly selective and sensitive detection of ractopamine (Liu et al, 2013b). All of these are QDs embedded in MIPs, which may decrease the QDs fluorescence intensity.…”