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Zhang Q. et al. demonstrated an immuno-magnetic sorting procedure using four types of immuno-magnetic nanoparticles for the separation of different T cells . They found that selectivity could be preserved, even at processing volumes as high as four liters of processed blood sample, but noted that increased throughput did degrade the …
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 …
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 …
In this work, we developed a multivalent magnetic biosensing strategy by integrating magnetic separation and magnetic relaxation switching (MRS) where Gd 3+-loaded magnetic nanoparticles acted as the probe. As a transition metal ion, Gd 3+ has multiple unpaired electrons in the d-orbitals that can induce a strong fluctuating …
In this work, we have studied field-induced aggregation and magnetic separation—realized in a microfluidic channel equipped with a single magnetizable micropillar—of multicore iron oxide nanoparticles (IONPs) also called "nanoflowers" of an average size of 27 ± 4 nm and covered by either a citrate or polyethylene (PEG) …
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, …
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 …
Magnetic nanoparticles. Magnetic NPs (MNPs) inherit several convenient features to aid in separation science, such as simplicity of application, compatible with a …
We develop a visual immunosensor for the one-step detection of Salmonella enterica by using gold nanoparticle triggered enzyme signal amplification and magnetic separation. This immunosensor shows an enhanced sensitivity compared with an enzyme-linked immunosorbent assay, without the involvement of any equipment, thus providing …
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 …
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.
Nanotechnology and its diverse products are now omnipresent and form a part of our existence, being included in lifestyle products ranging from nanosilver in deodorants and nanoscopic particles with enhanced release properties to nanoimpregnations in bathtubs and shower cubicles, electronics, and healthcare …
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 ...
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. •
Design of magnetic nanoparticles for biomedical applications. MNPs mostly consist of a magnetic core encapsulated by a protective inorganic shell bearing polymeric ligands displaying …
Magnetic nanoparticles based adsorbent have been used for the separation and pre-concentration of organic and inorganic pollutants. • Different pre-concentration …
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 …
Here, we demonstrate a new approach to nanoparticle recovery, combining the advantages of flocculation with magnetic separation to enable simple collection of non-magnetic nanoparticles. Flocculant polymers were coated onto magnetic nanoparticles (Fe 3 O 4 @SiO 2) to prepare reusable magnetic flocculants (MFs). When added to …
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 …
Abstract. The removal of highly stable dispersed oil produced during oil recovery processes is very challenging, especially in offshore operations where the limited space does not allow use of equipment with long residence time for the required separation. Using magnetic nanoparticles (MNPs) to remove the dispersed oil from …
Magnetic nanoparticles are researched intensively not only for biomedical applications, but also for industrial applications including wastewater treatment and catalytic processes. ... as it allows for magnetic separation. This makes them a promising carrier for precious materials and enables recovery via magnetic fields that can be turned on ...
1. Introduction. Magnetic core-shell silica nanoparticles have drawn much attention due to their unique magnetic property, uniform size distribution, monodispersity, functional surface and easy separation [1], [2].Because of these advantages, remarkable efforts have been devoted to its potential applications in heterogeneous catalysis [3], …
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 …
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.
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 …
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., …
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 …
Among various pretreatment methods, iron oxide magnetic nanoparticle (MNP)-based pretreatment has drawn attention owing to the unique properties of MNP, such as high magnetic susceptibility, superparamagnetism, and biocompatibility. ... Magnetic separation mainly uses iron oxide (Fe 3 O 4) MNPs to separate and enrich …
Magnetic nanobeads can be applied to the magnetic separation of nucleic acids which can be used for diagnosing infectious and genetic diseases of patients. In this study, core-shell structured silica-coated iron oxide (Fe3O4@SiO2) nanobeads with a core size distribution of 40–50 nm and a shell thickness of ∼ 10 nm were synthesized and …
The migration process of magnetic nanoparticles and colloids in solution under the influence of magnetic field gradients, which …