Competitive immunoassay for simultaneous detection of imidacloprid and thiacloprid by upconversion nanoparticles and magnetic nanoparticles

Tao, Zhexuan; Deng, Jiaqi; Wang, Yan; Chen, He; Yuan, Ding; Hua, Xiude; Wang, Minghua

doi:10.1007/s11356-019-05635-8

Cited by 22 publications

(10 citation statements)

References 37 publications

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“…H 2 O 2 was purchased from Guanghua Technology Co., Ltd. (Guangdong, China). The amine-functionalized UCNPs of NaYF 4 :Yb,Er and NaYF 4 :Yb,Tm, 31,32 and amine-functionalized Fe 3 O 4 MNPs 33 were prepared as previously described and stored in the laboratory. A 25% glutaraldehyde solution was supplied by Sinopharm Chemical Reagent Co., Ltd. (Shanghai, China).…”

Section: Methodsmentioning

confidence: 99%

Development of a multicolor upconversion fluorescence immunoassay for the simultaneous detection of thiamethoxam and dextran by magnetic separation

Sun

Huang

et al. 2021

RSC Adv.

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Section: Methodsmentioning

confidence: 99%

Development of a multicolor upconversion fluorescence immunoassay for the simultaneous detection of thiamethoxam and dextran by magnetic separation

Sun

Huang

et al. 2021

RSC Adv.

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“…In this work, an SPR sensor based on Tie1-oriented magnetic nanoparticles was fabricated to achieve sensitive detection of LECT2. Magnetic nanoparticles have been applied in biological detection, − treatment, and magnetic resonance imaging, given their physical and chemical stability, biocompatibility, and environmental safety. , In Yuan et al’s work, Fe 3 C@C core/shell particles were used for prion protein detection with the sandwich SPR detection method. Fe 3 O 4 -coated silver magnetic nanoparticles (Ag@MNPs) is a typical kind of magnetoplasmonic nanoparticles that combines magnetic and plasmonic materials in a limited nanoscale range, which can simultaneously exhibit the synergistic characteristics of Ag nanoparticles and magnetic nanoparticles …”

Section: Introductionmentioning

confidence: 99%

Aptamer-Assisted Protein Orientation on Silver Magnetic Nanoparticles: Application to Sensitive Leukocyte Cell-Derived Chemotaxin 2 Surface Plasmon Resonance Sensors

Zhu

Xia

et al. 2022

Anal. Chem.

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Leukocyte cell-derived chemotaxin 2 (LECT2) has been proved to be a potential biomarker for the diagnosis of liver fibrosis. In this work, a sensitive surface plasmon resonance (SPR) assay for LECT2 analysis was developed. Tyrosine kinase with immune globulin-like and epidermal growth factor-like domains 1 (Tie1) is an orphan receptor of LECT2 with a C-terminal Fc tag, which is far away from the LECT2 binding sites. The Fc aptamer was intentionally used to capture the Tie1 through its Fc tag, connecting with Fe3O4-coated silver magnetic nanoparticles (Ag@MNPs) and ensuring the LECT2 binding site to be outward. Attributed to the orientation nature of the captured protein, Ag@MNPs were able to enhance the SPR signal. A sensitive LECT2 sensor was successfully fabricated with a detection limit of 10.93 pg/mL. The results showed that the immobilization method improved the binding efficiency of Tie1 protein. This strategy could be extended to attach antibodies or recombinant Fc label proteins to Fc aptamer-based nanoparticles.

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“…Metal-organic frameworks (MOFs) have attracted growing interest as effective immobilization carriers for biomacromolecules due to their simple preparation method, internal cavity structure, designable pore/shape, and customizable functionality. [20][21][22][23][24][25] Embedding biomacromolecules within MOFs offers a protecting scaffold to overcome the fragile nature of biomacromolecules; however, it encounters considerable challenges in activity preservation. [26][27][28] Considering the assembled mode of MOFs, biomacromolecules including glucose oxidase, HRP and lactose, immobilized within typical dodecahedrons of MOFs usually maintain low bioactivity of < 10% or even inactivity.…”

Section: Introductionmentioning

confidence: 99%

Metal–Organic Frameworks Nanoarchitectures Boost Catalytic Activity for the Construction of Sensitive Immunosensor

Wang

et al. 2022

Adv Funct Materials

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Benefiting from the distinct structural features, metal-organic frameworks (MOFs) open new significant opportunities for biomacromolecule encapsulation to design biofunctional composites, whereas their biological activity and utilization efficiency remain challenging for the construction of advanced immunosensor. Herein, biomacromolecules are spatially encapsulated integration on the cavity of peptide-mediated MOFs with controllable nanoarchitectures, which amplifies the immunosensor signals via boosting bioactivity and utilization efficiency. Notably, the morphological evolution of MOFs composite including dodecahedrons, nanostars and flower-shaped nanostructures is achieved by introducing peptide surface modifier to trigger the coordination defects procedure. Nanostars are evidenced with the enhanced catalytic activity of biomacromolecules, which amplifies the recognition signal via regulating the pore channel and particle size of biomacromolecules@ MOFs composite, shortening the diffusion path of substrate molecules and promoting the interfacial contact. As proof-of-principle, imidacloprid is chosen as a model target to demonstrate the superiority of biomacromolecules@MOFs-based immunosensor. Combining the enhanced activity of biomacromolecules with size tunability of biomacromolecules@MOFs composite, 160-fold improvement in the sensitivity is obtained in comparison with the conventional enzyme-based immunoassay, paving the way for the employment of controllable nanostructures for high-sensitive biosensors.

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Competitive immunoassay for simultaneous detection of imidacloprid and thiacloprid by upconversion nanoparticles and magnetic nanoparticles

Cited by 22 publications

References 37 publications

Development of a multicolor upconversion fluorescence immunoassay for the simultaneous detection of thiamethoxam and dextran by magnetic separation

Development of a multicolor upconversion fluorescence immunoassay for the simultaneous detection of thiamethoxam and dextran by magnetic separation

Aptamer-Assisted Protein Orientation on Silver Magnetic Nanoparticles: Application to Sensitive Leukocyte Cell-Derived Chemotaxin 2 Surface Plasmon Resonance Sensors

Metal–Organic Frameworks Nanoarchitectures Boost Catalytic Activity for the Construction of Sensitive Immunosensor

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