Current status and challenges of ion imprinting

Fu, Jiayi; Chen, Lingxin; Li, Jinhua; Zhang, Zhong

doi:10.1039/c5ta02421h

Cited by 252 publications

(112 citation statements)

References 292 publications

(394 reference statements)

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“…A latest comprehensive review article on IIPs including main group elements, transition elements, actinides, rare earths, metalloids, anion imprinting and ion-mediated secondary imprinting is recommended for reading. 35 Additionally, large structured species for MIPs such as proteins, viruses, and cells have also been reported. [36][37][38][39] However, imprinting of proteins and other biomacromolecules is still a great challenge.…”

Section: Essential Elements Of Molecular Imprintingmentioning

confidence: 99%

Molecular imprinting: perspectives and applications

et al. 2016

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a Molecular imprinting technology (MIT), often described as a method of making a molecular lock to match a molecular key, is a technique for the creation of molecularly imprinted polymers (MIPs) with tailor-made binding sites complementary to the template molecules in shape, size and functional groups. Owing to their unique features of structure predictability, recognition specificity and application universality, MIPs have found a wide range of applications in various fields. Herein, we propose to comprehensively review the recent advances in molecular imprinting including versatile perspectives and applications, concerning novel preparation technologies and strategies of MIT, and highlight the applications of MIPs. The fundamentals of MIPs involving essential elements, preparation procedures and characterization methods are briefly outlined.Smart MIT for MIPs is especially highlighted including ingenious MIT (surface imprinting, nanoimprinting, etc.), special strategies of MIT (dummy imprinting, segment imprinting, etc.) and stimuli-responsive MIT (single/dual/ multi-responsive technology). By virtue of smart MIT, new formatted MIPs gain popularity for versatile applications, including sample pretreatment/chromatographic separation (solid phase extraction, monolithic column chromatography, etc.) and chemical/biological sensing (electrochemical sensing, fluorescence sensing, etc.). Finally, we propose the remaining challenges and future perspectives to accelerate the development of MIT, and to utilize it for further developing versatile MIPs with a wide range of applications (650 references).

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Section: Essential Elements Of Molecular Imprintingmentioning

confidence: 99%

Molecular imprinting: perspectives and applications

et al. 2016

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“…Meanwhile, molecular imprinting technology (MIT) known as a technique for creation of tailor-made binding sites in a polymer matrix, i.e., molecularly imprinted polymers (MIPs), has attracted great concerns (Chen et al, 2011;Fu et al, 2015). The introduction of MIT into the design of fluorescence probes/sensors strategies will combine the advantages of high selectivity of MIPs with high sensitivity of fluorescence.…”

Section: Introductionmentioning

confidence: 99%

Molecular imprinting ratiometric fluorescence sensor for highly selective and sensitive detection of phycocyanin

Wang

Kang

et al. 2016

Biosensors and Bioelectronics

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a b s t r a c tA facile strategy was developed to prepare molecular imprinting ratiometric fluorescence sensor for highly selective and sensitive detection of phycocyanin (PC) based on fluorescence resonance energy transfer (FRET), via a sol-gel polymerization process using nitrobenzoxadiazole (NBD) as fluorescent signal source. The ratio of two fluorescence peak emission intensities of NBD and PC was utilized to determine the concentration of PC, which could effectively reduce the background interference and fluctuation of diverse conditions. As a result, this sensor obtained high sensitivity with a low detection limit of 0.14 nM within 6 min, and excellent recognition specificity for PC over its analogues with a high imprinting factor of 9.1. Furthermore, the sensor attained high recoveries in the range of 93.8-110.2% at three spiking levels of PC, with precisions below 4.7% in seawater and lake water samples. The developed sensor strategy demonstrated simplicity, reliability, rapidity, high selectivity and high sensitivity, proving to be a feasible way to develop high efficient fluorescence sensors and thus potentially applicable for ultratrace analysis of complicated matrices.

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“…7,14,15 Then, the produced ion imprinted polymers (IIPs) possess the corresponding three-dimensional cavity structures complementary with the target ions.…”

Section: -13mentioning

confidence: 99%

Synthesis of multi-ion imprinted polymers based on dithizone chelation for simultaneous removal of Hg²⁺, Cd²⁺, Ni²⁺ and Cu²⁺ from aqueous solutions

Wang

et al. 2016

RSC Adv.

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Simultaneous analysis and removal of various heavy metal ions has received increasing concerns because they are usually co-existent with different toxicological effects. Ion imprinted polymers (IIPs) can effectively identify water-soluble ions especially heavy metal ions, however, multi-ion imprinting is rarely performed owing to possible cross-reactivity and matrix interferences. In this work, a novel and generally applicable IIPs strategy was proposed for simultaneous preconcentration and removal of four heavy metal ions based on dithizone chelation. Multi-ion imprinted polymers (MIIPs) embedded in a sol-gel matrix were prepared by using Hg Consequently, the MIIPs were used as solid-phase extraction sorbents for preconcentration of trace Hg 2+ , Cd 2+ , Ni 2+ and Cu 2+ , presenting high detectability up to 6.0-22.5 ng L À1 and satisfactory recoveries ranging from 94.7-110.2% in seawater samples. The developed MIIPs-based method proved to be a practically feasible method in heavy metal removal and water pretreatment.

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Current status and challenges of ion imprinting

Cited by 252 publications

References 292 publications

Molecular imprinting: perspectives and applications

Molecular imprinting: perspectives and applications

Molecular imprinting ratiometric fluorescence sensor for highly selective and sensitive detection of phycocyanin

Synthesis of multi-ion imprinted polymers based on dithizone chelation for simultaneous removal of Hg²⁺, Cd²⁺, Ni²⁺ and Cu²⁺ from aqueous solutions

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Current status and challenges of ion imprinting

Cited by 252 publications

References 292 publications

Molecular imprinting: perspectives and applications

Molecular imprinting: perspectives and applications

Molecular imprinting ratiometric fluorescence sensor for highly selective and sensitive detection of phycocyanin

Synthesis of multi-ion imprinted polymers based on dithizone chelation for simultaneous removal of Hg2+, Cd2+, Ni2+ and Cu2+ from aqueous solutions

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Synthesis of multi-ion imprinted polymers based on dithizone chelation for simultaneous removal of Hg²⁺, Cd²⁺, Ni²⁺ and Cu²⁺ from aqueous solutions