Synthesis and evaluation of a molecularly imprinted polymer with high-efficiency recognition for dibutyl phthalate based on Mn-doped ZnS quantum dots

Abstract

Molecularly imprinted polymers with Mn-doped ZnS quantum dots were prepared using dibutyl phthalate as the template molecule, 3-aminopropyltriethoxysilane as the functional monomer and the tetraethoxysilane as the cross-linker.

Molecularly Imprinted Polymer-Based Sensors for Priority Pollutants

“…Encapsulation of QDs during polymerization is another strategy which is used more often to develop fluorescence sensors. In a series of studies [ 40 , 41 ], QDs were embedded within the imprinted polymers to develop fluorescence sensors for dibutyl phthalate (DBP). In the first study [ 41 ], Mn-doped ZnS QDs (ZnS:Mn QDs) were synthesized and coated with a thin silica-shell using 3-mercaptopropyltriethoxysilane (MPTS).…”

“…In a series of studies [ 40 , 41 ], QDs were embedded within the imprinted polymers to develop fluorescence sensors for dibutyl phthalate (DBP). In the first study [ 41 ], Mn-doped ZnS QDs (ZnS:Mn QDs) were synthesized and coated with a thin silica-shell using 3-mercaptopropyltriethoxysilane (MPTS). The as-prepared MPTS-capped-ZnS:Mn QDs (average diameter: ≈4 nm) were coated with imprinted layer using DBP as the template molecule, 3-aminopropyltriethoxysilane (APTES) as the functional monomer and tetraethoxysilane (TEOS) as the cross-linker.…”

“…For electrochemical measurements, HS-MGO@AuNPs-MIP particles were mixed with chitosan solution and coated at the surface of gold electrode. In comparison to the developed fluorescence sensors [ 40 , 41 ], the electrochemical sensor [ 56 ] enabled DBP detection at very low concentrations with a LOD at 0.0008 µM.…”

“…As for the EPA Priority Pollutants, MIPs have been also used to develop new selective sample-preparation methods [ 27 , 28 , 29 ] or to modify different sensor devices (i.e., MIP-modified sensors: it refers to both sensor devices and their modification with MIP materials). The functionality of the used sensors is mainly based on the optical (fluorescence [ 30 , 31 , 32 , 33 , 34 , 35 , 36 , 37 , 38 , 39 , 40 , 41 , 42 , 43 , 44 ], phosphorescence [ 45 , 46 , 47 , 48 ], chemiluminescence [ 49 ] or color-change [ 50 , 51 ]) and electrochemical (electrochemical impedance spectroscopy [ 52 ], potentiometric [ 53 , 54 ] or voltammetric methods [ 55 , 56 , 57 , 58 , 59 , 60 , 61 , 62 , 63 , 64 , 65 , 66 , 67 , 68 , 69 , 70 , 71 , 72 , 73 , 74 ]) detection techniques. However, to a lesser extent, electromechanical-based mass sensors (quartz crystal microbalance [ 75 ,…”

“…As for the EPA Priority Pollutants, MIPs have been also used to develop new selective sample-preparation methods [27][28][29] or to modify different sensor devices (i.e., MIP-modified sensors: it refers to both sensor devices and their modification with MIP materials). The functionality of the used sensors is mainly based on the optical (fluorescence [30][31][32][33][34][35][36][37][38][39][40][41][42][43][44], phosphorescence [45][46][47][48], chemiluminescence [49] or color-change [50,51]) As for the EPA Priority Pollutants, MIPs have been also used to develop new selective sample-preparation methods [27][28][29] or to modify different sensor devices (i.e., MIP-modified sensors: it refers to both sensor devices and their modification with MIP materials). The functionality of the used sensors is mainly based on the optical (fluorescence [30][31][32][33][34][35][36][37][38][39][40][41][42][43][44], phosphorescence…”