Magnetic nanoparticle enhanced surface plasmon resonance sensor for estradiol analysis

Jia, Yingtong; Peng, Yuan; Bai, Jintao; Zhang, Xihao; Cui, Yanguang; Ning, Baoan; Cui, Jiansheng; Gao, Zhixian

doi:10.1016/j.snb.2017.07.061

Cited by 72 publications

(33 citation statements)

References 35 publications

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“…An analytical signal is a shift of the SPR’s minimum due to affinity complex formation. This shift is greater for the more specific interactions that occur on the sensor [ 87 , 88 , 89 , 90 , 91 ]. The enormous increase in the efficiency of light scattering by molecules adsorbed on the surface of silver, gold, or copper—the phenomenon of combinatorial light scattering (CLS)—has also found a use in the development of sensors based on the interaction of a receptor and an analyte [ 92 , 93 , 94 , 95 ].…”

Section: Sensors Characteristicsmentioning

confidence: 99%

Sensors Based on Bio and Biomimetic Receptors in Medical Diagnostic, Environment, and Food Analysis

et al. 2018

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Analytical chemistry is now developing mainly in two areas: automation and the creation of complexes that allow, on the one hand, for simultaneously analyzing a large number of samples without the participation of an operator, and on the other, the development of portable miniature devices for personalized medicine and the monitoring of a human habitat. The sensor devices, the great majority of which are biosensors and chemical sensors, perform the role of the latter. That last line is considered in the proposed review. Attention is paid to transducers, receptors, techniques of immobilization of the receptor layer on the transducer surface, processes of signal generation and detection, and methods for increasing sensitivity and accuracy. The features of sensors based on synthetic receptors and additional components (aptamers, molecular imprinted polymers, biomimetics) are discussed. Examples of bio- and chemical sensors’ application are given. Miniaturization paths, new power supply means, and wearable and printed sensors are described. Progress in this area opens a revolutionary era in the development of methods of on-site and in-situ monitoring, that is, paving the way from the “test-tube to the smartphone”.

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Section: Sensors Characteristicsmentioning

confidence: 99%

Sensors Based on Bio and Biomimetic Receptors in Medical Diagnostic, Environment, and Food Analysis

et al. 2018

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“…Due to the aforementioned desired properties of MNPs, these compounds are widely used for environmental monitoring, biomedical applications, food analysis, etc. [43][44][45][46]. The principle of the SPR system with MNPs was illustrated in Figure 2 [47].…”

Section: Surface Plasmon Resonance (Spr)mentioning

confidence: 99%

“…Antibody-functionalized MNPs Antibody-immobilized SPR immunoassay Hormone (Estradiol) The MNPs showed outstanding ability to amplify the SPR signal. [45] PEG-4000 functionalized Fe 3 O 4 MNPs SPR set up device in Kretschmann configuration and He/Ne laser beam.…”

Section: Protein (Prion Disease Associated Isoform Prp Sc )mentioning

confidence: 99%

Optical-Based (Bio) Sensing Systems Using Magnetic Nanoparticles

2019

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In recent years, various reports related to sensing application research have suggested that combining the synergistic impacts of optical, electrical or magnetic properties in a single technique can lead to a new multitasking platform. Owing to their unique features of the magnetic moment, biocompatibility, ease of surface modification, chemical stability, high surface area, high mass transference, magnetic nanoparticles have found a wide range of applications in various fields, especially in sensing systems. The present review is comprehensive information about magnetic nanoparticles utilized in the optical sensing platform, broadly categorized into four types: surface plasmon resonance (SPR), surface-enhanced Raman spectroscopy (SERS), fluorescence spectroscopy and near-infrared spectroscopy and imaging (NIRS) that are commonly used in various (bio) analytical applications. The review also includes some conclusions on the state of the art in this field and future aspects.

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“…Detecting small molecules using this technique is a little bit trickier than proteins and nucleic acids, due to the smaller size and lower molecular weight of this type of targets. However, researchers have incorporated a variety of nanomaterials [21,22] such as metal nanoparticles [23][24][25], magnetic nanoparticles [26,27], quantum dots [28], and carbonbased nanomaterials [29,30] into the assays to enhance the signal and lower the detection limits. For example, Corn et al reported the employment of nucleic acid functionalized nanoparticle-enhanced SPR imaging to measure protein and DNA targets down to the 25 fM based on oligonucleotide and aptamer microarrays [31].…”

Section: Introductionmentioning

confidence: 99%

Femtomolar and selective dopamine detection by a gold nanoparticle enhanced surface plasmon resonance aptasensor

Cao

McDermott

2018

Preprint

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Ultrasensitive and selective detection and quantification of dopamine (DA) plays a key role in monitoring neurodegenerative diseases. However, the detection limit reported for DA detection is typically in the lower nM range. Pushing the detection limit to pM or lower for this particular target to cover the physiological levels (< 130 pM) is significant. Herein, DA DNA aptamer (DAAPT) gold nanoparticle (AuNP) conjugate is utilized to enhance the surface plasmon resonance (SPR) signal, which enables to detect and quantify DA in the femtomolar (200 fM) to picomolar range. To the best of our knowledge, this is the lowest detection limit achieved for SPR sensing of dopamine. The as-prepared 10 nm DAAPT-AuNP conjugate demonstrates strong binding affinity (K d = 3.1 ± 1.4 nM) to the complementary DNA (cDNA) probe on gold chip. The cDNA probe is immobilized to the chip via polydopamine surface chemistry, which allows the Michael addition of any primary amine-terminated biomolecules.By adjusting the concentration of the DAAPT-AuNP conjugate, two calibration curves are generated with dynamic ranges from 100 µM to 2 mM, and from 200 fM to 20 nM, respectively. Both calibration curves have negative slopes, showing good agreement to a dose-response curve in an enzyme inhibition

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Magnetic nanoparticle enhanced surface plasmon resonance sensor for estradiol analysis

Cited by 72 publications

References 35 publications

Sensors Based on Bio and Biomimetic Receptors in Medical Diagnostic, Environment, and Food Analysis

Sensors Based on Bio and Biomimetic Receptors in Medical Diagnostic, Environment, and Food Analysis

Optical-Based (Bio) Sensing Systems Using Magnetic Nanoparticles

Femtomolar and selective dopamine detection by a gold nanoparticle enhanced surface plasmon resonance aptasensor

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