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Nanoparticles (NPs) are small particles with diameter range of 1–100 nm. The nanoscale materials, in particular magnetic NPs, have attracted the attention in several applications as magnetic fluids (Jordan et al. 1999), magnetic energy storage (Jordan et al. 1999), and biomedicine (Vallejo-Fernandez et al. 2013) due to their unique properties …
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Design of magnetic nanoparticles for biomedical applications. MNPs mostly consist of a magnetic core encapsulated by a protective inorganic shell bearing polymeric ligands displaying …
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The ability of the magnetic particles to capture AgNPs was tested by exposing 2 μg/mL AgNP solution to 2 mg/mL magnetic particles.Briefly, magnetic particle suspensions were added to AgNPs, the mixture shaken for 30 min at 100 rpm to disperse the particles then incubated for 15 min to facilitate absorption of the AgNPs.The particles …
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Furthermore, nanoparticles based on metal elements gold, zinc [58], cobalt, manganese [59], and also magnetic nanoparticles are widely used to contribute to the heating efficiency for hyperthermic treatment [60].This treatment consists of heating tumor cells to a temperature range of 40–45 ºC, which is enough to destroy or induce …
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Lee, J.-S., Stoeva, S. I. & Mirkin, C. A. DNA-induced size-selective separation of mixtures of gold nanoparticles. Journal of the American Chemical …
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Magnetite nanoparticles (MNP) are nowadays considered a real wealth to the enormously developing world owing to the several characteristics they pose. In addition to the shared nanofeatures, superparamagnetism facilitates repetitive use for several rounds. Synthesis of MNPs was accomplished through plenty of methods using different …
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MPs separation by magnetic materials3.1. Separation by iron nanoparticles and ferrite materials. Magnetic separation has drawn increasing attention as it provides an expeditious and low-cost solution for removing MPs, and numerous magnetic materials …
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For magnetic nanoparticles, it is the use of an applied magnetic flux or field gradient that enables separations. Flow based techniques are …
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magnetic nanoparticles, making them highly adaptable for magnetic biosensor applications. Herein, we su mmarized several representative magnetic nanomaterials for Biological detection (Table 1). 2.1 Sample extraction detection and separation The separation of biological samples is a crucial step in their subsequent.
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Iron ore tailing is a major solid waste requiring advanced recycling methods because ore tailing powder is polluting air and water resources. For instance, about 300 million tons of tailings are disposed yearly in 1229 iron ore tailings dams in the Hebei province in China. Iron ore tailings can be recycled as functional materials because these tailings are …
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When compared with other magnetic nanoparticles, magnetic nanoparticles containing ferrite as the main component have advantages such as non-destructive biological activity, a simple preparation process and low cost; therefore, these have been widely used in various fields in recent years (Sadat et al., 2014, Li et al., …
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Magnetic nanoparticles. Magnetic NPs (MNPs) inherit several convenient features to aid in separation science, such as simplicity of application, compatible with a …
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Extracellular vesicles (EVs) are available in various biological fluids and have highly heterogeneous sizes, origins, contents, and functions. Rapid enrichment of high-purity EVs remains crucial for enhancing research on EVs in tumors. In this work, we present a magnetic nanoparticle-based microfluidic platform (ExoCPR) for on-chip …
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The magnetic separation assays were carried out using the Vertical Ring and Pulsating High Gradient Magnetic Separator (VPHGMS) equipment. The Outotec Slon® model 100 was used, applying only the rougher stage with a GAP of 1.5 mm, a magnetic field of 11,900 Gauss, pulsation of 300 rpm, and rotation of 60 rpm, 29% of …
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The preparation and application of rod-shaped core–shell structured Fe3O4–Au nanoparticles for immunomagnetic separation and sensing were described for the first time with this study. To synthesize magnetic gold nanorod particles, the seed-mediated synthetic method was carried out and the resulting nanoparticles were …
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Nucleic acid extraction without electrical equipment via magnetic nanoparticles in Pasteur pipettes for pathogen detection Anal Biochem. 2021 Dec 15;635:114445. doi: 10.1016/j ... Herein, we proposed a simple system in which magnetic nanoparticles (MNPs) based nucleic acid extraction was carried out in a plastic Pasteur …
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Fe 3 O 4 nanoparticles can be used as a bridge between CD and zeolite to combine their excellent demulsification ability and obtain the final composite products with magnetic responsiveness to accelerate oil–water separation with the aid of …
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Moreover, the integration of MNPs and microfluidics enhances the performance of bioanalytical systems by incorporation functionalized magnetic nanoparticles into microchip devices (Zhong et al., 2023) Microfluidic chips, which incorporate mixing, separation, washing, and detection functions, are commonly used …
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The need for excellent, affordable, rapid, reusable and biocompatible protein purification techniques is justified based on the roles of proteins as key biomacromolecules. Magnetic nanomaterials nowadays have become the subject of discussion in proteomics, drug delivery, and gene sensing due to their various abilities including rapid separation, …
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For magnetic nanoparticles, it is the use of an applied magnetic flux or field gradient that enables separations. Flow based techniques are combined with applied magnetic fields to give methods such as magnetic field flow fractionation and high gradient magnetic separation. Additional techniques have been explored for manipulating particles in ...
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Magnetic nanoparticles based adsorbent have been used for the separation and pre-concentration of organic and inorganic pollutants. • Different pre-concentration and sample preparation techniques have been described including SMPE, SPE with real-time applications.
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Magnetic nanoparticles based adsorbent have been used for the separation and pre-concentration of organic and inorganic pollutants. • Different pre-concentration …
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Magnetic nanoparticles (MNPs) based nucleic acid extraction in Pasteur pipettes. • Nucleic acid extraction in Pasteur pipette system is electrical equipment-free. • The extraction process was finished in 15 min and applicable to various samples. • Improving sensitivity of NAAT compared to traditional MNPs based extraction method. •
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The switching from magnetic nanoparticles to Ag-loaded magnetic nanoparticles led to a 0.06 increase in total coliforms, fecal coliforms, and heterotrophic bacteria log reductions, ... and the concerns around the commercialization of industry-ready magnetic separation equipment. ...
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Due to the presence of the "lightning-rod effect", the core-shell popcorn-shaped gold-nanoparticle tips provided a huge field of SERS enhancement. The experimental data show that the M3038 antibody-conjugated nanoparticles can be used for targeted separation and SERS imaging of MDR Salmonella DT104.
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Magnetic nanoparticles (MNP) have found multiple uses across a wide spectrum of biomedical applications 1,2 such as hyperthermia for cancer treatment 3, remotely controlled drug delivery 4 and ...
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Magnetic separation. After gravity separation, the compositions were tested with a 0.5 T Neodymium magnet. This aimed to see if magnetic nanoparticles could help demulsify emulsions with high surfactant concentrations. 3.3.1. Light crude oil. AOS and LCO emulsions presented efficient demulsification under a magnetic field.
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MPs separation by magnetic materials3.1. Separation by iron nanoparticles and ferrite materials. Magnetic separation has drawn increasing attention as it provides an expeditious and low-cost solution for removing MPs, and numerous magnetic materials have been developed in recent years.
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Superparamagnetic iron oxide nanoparticles (SPIONs) have emerged as cutting-edge materials, garnering increasing attention in recent years within the fields of chemical and biomedical engineering. This increasing interest is primarily attributed to the distinctive chemical and physical properties of SPIONs. Progress in nanotechnology and …
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Superparamagnetism exists only in nanocrystals, and to endow micro/macro-materials with superparamagnetism, superparamagnetic nanoparticles have to be assembled into complex materials. Most techniques currently used to produce such assemblies are inefficient in terms of time and material. Herein, we used evaporation …
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