Magnetic molecularly imprinted polydopamine nanolayer on multiwalled carbon nanotubes surface for protein capture

Yin, Yuli; Yan, Liang; Zhang, Zhaohui; Wang, Jing

doi:10.1016/j.talanta.2015.06.067

Cited by 52 publications

(22 citation statements)

References 30 publications

(35 reference statements)

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“…The charge transfer between the electrode substrate and the analyte that occupies the molecular cavities of the MIP is assured by incorporating ECP matrices in the film. Several research works in the literature report the use of electroactive monomers like 3,4-ethylenedioxythiophene (EDOT) [97,98,99], pyrrole [100,101,102,103], aniline [104,105], thiophene [106,107], and dopamine [108,109] for MIP electrosynthesis of organic compounds (Figure 5). …”

Section: Imprinting Technologymentioning

confidence: 99%

Imprinting Technology in Electrochemical Biomimetic Sensors

Frasco

Truta

Sales

et al. 2017

Sensors

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Biosensors are a promising tool offering the possibility of low cost and fast analytical screening in point-of-care diagnostics and for on-site detection in the field. Most biosensors in routine use ensure their selectivity/specificity by including natural receptors as biorecognition element. These materials are however too expensive and hard to obtain for every biochemical molecule of interest in environmental and clinical practice. Molecularly imprinted polymers have emerged through time as an alternative to natural antibodies in biosensors. In theory, these materials are stable and robust, presenting much higher capacity to resist to harsher conditions of pH, temperature, pressure or organic solvents. In addition, these synthetic materials are much cheaper than their natural counterparts while offering equivalent affinity and sensitivity in the molecular recognition of the target analyte. Imprinting technology and biosensors have met quite recently, relying mostly on electrochemical detection and enabling a direct reading of different analytes, while promoting significant advances in various fields of use. Thus, this review encompasses such developments and describes a general overview for building promising biomimetic materials as biorecognition elements in electrochemical sensors. It includes different molecular imprinting strategies such as the choice of polymer material, imprinting methodology and assembly on the transduction platform. Their interface with the most recent nanostructured supports acting as standard conductive materials within electrochemical biomimetic sensors is pointed out.

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Section: Imprinting Technologymentioning

confidence: 99%

Imprinting Technology in Electrochemical Biomimetic Sensors

Frasco

Truta

Sales

et al. 2017

Sensors

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“…Oxidation with air in Tris buffer is often applied as a dip coating to create PDA films on various types of surfaces, such as Teflon, aluminium oxide, silica, stainless steel, various polymers and nanostructures like carbon nanotubes, magnetic nanoparticles and gold nanoparticles . The thickness of films on the one hand and the size and shape of PDA objects on the other can be influenced by reaction time, concentration, solvent, additives and pH .…”

Section: Polydopamine – Structural and Synthetic Aspectsmentioning

confidence: 99%

Chemistry of polydopamine analogues

Mrówczyński

Markiewicz

Liebscher

2016

Polymer International

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Polydopamine analogues (PDANAs) extend the prospering field of polydopamine (PDA) considerably. They include additional functional groups providing altered properties interesting for various applications. PDANAs can be obtained by post functionalization of PDA, by oxidative polymerization of dopamine derivatives or by copolymerization of dopamine with dopamine derivatives, other monomers or reactive polymers. This review covers the state of the art and gives insight into the huge potential of the field to be explored in the future. © 2016 Society of Chemical Industry

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“…Therefore, this approach is well suited for imprinting of biomacromolecules like proteins . Depending on application modes, the solid supports subjected to surface imprinting of proteins can be nanomaterials , electrodes , microspheres , membranes , and monoliths. Molecular imprinting of proteins in polymers attached to the surface of nanomaterials is currently a hot topic; however, this application mainly focuses on the fabrication of biosensors since the nanomaterials exhibit a remarkably large surface‐to‐volume ratio and size‐related physical and chemical properties.…”

Section: Introductionmentioning

confidence: 99%

“Smart” molecularly imprinted monoliths for the selective capture and easy release of proteins

Wen

Tan

Sun

et al. 2016

J of Separation Science

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A new thermally switchable molecularly imprinted monolith for the selective capture and release of proteins has been designed. First, a generic poly(glycidyl methacrylate-co-ethylene dimethacrylate) monolith reacted with ethylenediamine followed by functionalization with 2-bromoisobutyryl bromide to introduce the initiator for atom transfer radical polymerization. Subsequently, a protein-imprinted poly(N-isopropylacrylamide) layer was grafted onto the surface of the monolithic matrix by atom transfer radical polymerization. Scanning electron microscopy and energy-dispersive X-ray spectroscopy of the cross-sections of imprinted monoliths confirmed the formation of dense poly(N-isopropylacrylamide) brushes on the pore surface. The imprinted monolith exhibited high specificity and selectivity toward its template protein myoglobin over competing proteins and a remarkably large maximum adsorption capacity of 1641 mg/g. Moreover, this "smart" imprinted monolith featured thermally responsive characteristics that enabled selective capture and easy release of proteins triggered only by change in temperature with water as the mobile phase and avoided use of stronger organic solvents or change in ionic strength and pH.

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Magnetic molecularly imprinted polydopamine nanolayer on multiwalled carbon nanotubes surface for protein capture

Cited by 52 publications

References 30 publications

Imprinting Technology in Electrochemical Biomimetic Sensors

Imprinting Technology in Electrochemical Biomimetic Sensors

Chemistry of polydopamine analogues

“Smart” molecularly imprinted monoliths for the selective capture and easy release of proteins

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