Molecular imprinted opal closest-packing photonic crystals for the detection of trace 17β-estradiol in aqueous solution

Sai, Na; Wu, Yang; Sun, Zilin; Huang, Guowei; Gao, Zhixian

doi:10.1016/j.talanta.2015.05.079

Cited by 27 publications

(8 citation statements)

References 28 publications

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“…Although many of these have been described as sensors, rather than assays, they are worthy of mention since they operate in the same manner. Analytes determined in this fashion include bisphenol A [ 108 , 109 ], organophosphorus compounds [ 110 ], imidacloprid [ 111 ], glucose [ 112 ], amino acids [ 113 ], progesterone [ 114 ], tetracycline [ 115 ], and 17β-estradiol [ 116 ]. Volume changes have also been employed in the detection of proteins in hydrogels imprinted using novel functional monomers based on aptamers [ 117 ].…”

Section: Recent Developments In Mip-based Assaysmentioning

confidence: 99%

Analytical applications of MIPs in diagnostic assays: future perspectives

2015

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Many efforts have been made to produce artificial materials with biomimetic properties for applications in binding assays. Among these efforts, the technique of molecular imprinting has received much attention because of the high selectivity obtainable for molecules of interest, robustness of the produced polymers, simple and short synthesis, and excellent cost efficiency. In this review, progress in the field of molecularly imprinted sorbent assays is discussed—with a focus on work conducted from 2005 to date.Graphical AbstractA growing trend in recent years has been the use of molecularly imprinted polymers as replacements for antibodies in various assay formats, as indicated by a steady increase in publications in the area (see graph)

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Section: Recent Developments In Mip-based Assaysmentioning

confidence: 99%

Analytical applications of MIPs in diagnostic assays: future perspectives

2015

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“…Here are several advantages of our synthesis strategy. First, compared with the previously reported inverse opal PCs 26 and the opal closest-packing PCs 27,28 in our group, the fabrication process of the MRPCs is easy to operate and cost-efficient, and the reaction time is further shortened to 9 h and the assembling is instantaneous (less than 1 s), which greatly improve the efficiency of self-assembled PCs in laboratories. Moreover, the size of Fe 3 O 4 CNCs shows a homogeneous morphology and can be simply adjusted by the addition amount of water, which lays a groundwork for the PCs diffraction color shift under EMF.…”

Section: Introductionmentioning

confidence: 97%

Instantaneous Magnetically Assembled and Hydrophilic Photonic Crystals with Controlled Diffraction Colors

et al. 2018

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The time-consuming assembling process of the traditional photonic crystals (PCs) and non-water-dispersibility of the reported magnetic responsive PCs (MRPCs) have greatly limited the application especially in the biotechnological fields. Herein, the hydrophilic and size-controllable Fe 3 O 4 @poly(4-styrenesulfonic acid-co-maleic acid) (PSSMA)@SiO 2 MRPCs were fabricated by orderly assembling of the core−shell colloidal nanocrystal clusters via a twostep facile synthesis approach. Due to the rich carboxyl and hydroxyl groups of PSSMA, the obtained MRPCs have excellent properties of hydrophilicity, high surface charge which presented magnetically tunable photonic structural colors, and rapid reflection signal in aqueous solution under external magnetic field within 1 s. The diffraction color of the MRPCs in the entire visible range could be tuned by adjusting the magnetic strength or the nanoparticle size, which bring a clear change of the structure color from brilliant red to modena by the naked eye. Thus, the magnetically sensitive MRPCs with low-cost, tunable size, and fast optical signal response indicate a promising application in optical systems, biosensors, and biomedical imaging.

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“…During which, no chemical reaction occur between CPC and analytes, the color change of CPC is reversible. In recent years, sensors based on responsive CPCs were developed and the detection of pH, 13,14 temperature, 15 metal ions, 16 and drug molecules 17 can be achieved by measure the change of structural color and associated reflection spectra.…”

Section: ■ Introductionmentioning

confidence: 99%

Copper Ion Imprinted Hydrogel Photonic Crystal Sensor Film

Wang

Chu

Huang

et al. 2022

ACS Appl. Polym. Mater.

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An ion-imprinted photonic crystal (IIPC) sensor for visual detection of copper ions was prepared by the combination of ion-imprinting polymer and colloidal photonic crystal (CPC) structure. Monodisperse polystyrene (PS) colloidal nanospheres synthesized by the boiling soap-free emulsion polymerization method were used to prepare the CPC template by the solvent evaporation method. An ion-imprinted polymer based on poly(vinyl alcohol) and chitosan (PVA/CS) is infiltrated therein. The IIPC sensor film was then prepared by solventassisted freeze−thaw method while the CPC template was strengthened as the air pores of the template were replaced by PVA/CS hydrogel. The shift of the diffraction wavelength can be directly observed by the naked eye through the color change of the IIPCS according to the concentration change of copper ion. Such sensor film showed good selectivity and sensitivity with a lower detection limit of 10 −4 M.

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Molecular imprinted opal closest-packing photonic crystals for the detection of trace 17β-estradiol in aqueous solution

Cited by 27 publications

References 28 publications

Analytical applications of MIPs in diagnostic assays: future perspectives

Analytical applications of MIPs in diagnostic assays: future perspectives

Instantaneous Magnetically Assembled and Hydrophilic Photonic Crystals with Controlled Diffraction Colors

Copper Ion Imprinted Hydrogel Photonic Crystal Sensor Film

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