Magnetic separation is a process where a contaminant is first attached onto a magnetic carrier material (e.g., magnetite), and subsequently, the contaminant-laden carrier is …

Request PDF | Rapid identification and antibiotic susceptibility test of pathogens in blood based on magnetic separation and surface-enhanced Raman scattering | An effective surface-enhanced Raman ...

Magnetic separation technique based on magnetic carriers has been used in a variety of separation processes such as impurity removal from mineral concentrates, ... NAE fine solids capture and removal by surface modified magnetic nanoparticles SAA-MNPs and a hand magnet. (b) Same test but with the un-modified MNPs used. ...

Abstract. Magnetic separations are probably one of the most versatile separation processes in biotechnology as they are able to purify cells, viruses, proteins and nucleic acids directly from crude samples. The fast and gentle process in combination with its easy scale-up and automation provide unique advantages over other separation …

Magnetic cell separation has become a key methodology for the isolation of target cell populations from biological suspensions, covering a wide spectrum of applications from diagnosis and therapy in biomedicine to environmental applications or fundamental research in biology. There now exists a great variety of commercially available …

Magnetic Separation of Red Mud Without Surface Magnetization. Magnetic separation was directly carried out for red mud without surface magnetization in a magnetic separation tube (XGS-50, Victor International Mining Equipment Co., Ltd., Jiangxi, China) with a high-intensity magnetic bar (6000 Gauss). Surface Magnetization …

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. ... Their power sources from the photocatalytic oxidation reaction on the surface and magnetic fields drive them to target and navigate …

Magnetic separation has great potential for high-throughput downstream processing in applied life sciences. At the same time, two major challenges need to be …

While magnetic immuno-separation methods are advantageous in that they allow for highly efficient enrichment of rare cells, yet one of primary drawbacks is that once the cells have been tagged with magnetic particles, it is difficult to separate the bead-cell aggregates from the mixture of bare magnetic beads, since magnetic fields will attract ...

Daidzein, a naturally occurring source of estrogenic isoflavones, holds significant promise for various applications in food and drug development. Therefore, to realize efficient and precise daidzein separation, we synthesized a magnetic surface molecularly imprinted polymer (Daidzein/SMIPs) via free radical-initiated polymerization …

Magnetic nanomaterials, such as Fe 3 O 4 nanoparticles, have the advantages of easy surface modification, rapid separation and enrichment [22], [23]. Combined with magnetic separation, target objects can be rapidly enriched and separated from complex food matrixes and their SERS spectral information can be effectively …

Substances. Antibodies. Antigens. Immunoglobulin G. Gold. A novel and highly sensitive immunoassay method based on surface enhanced Raman spectroscopy (SERS) and magnetic particles has been developed. This method exhibits great potential application in bio-separation and immunoassay.

Surface Type Cover Magnet Separation. I have a Surface 6. Earlier this year when I was removing the cover from the main unit the magnet strip separated from the keyboard and the keyboard would no longer work. It was out of warranty so I purchased a new cover in July. Now two months later the new cover has done exactly the same thing.

A superhydrophobic surface with a water contact angle (WCA) greater than 150° is crucial for the selectivity of oil–water separation. As shown in Fig. 1 a, this work first introduced submicron-scale magnetic particles on the surface of the micro-sponge skeleton structure, and further introduced smaller nano-scale polysiloxanes on the …

High efficiency nucleic acid (NA) separation via magnetic nanoparticles (MNPs) is a promising technology for bioengineering, healthcare, etc. Aimed to enhance the selection of MNPs and illustrate the separation mechanism for effective isolation of NAs from complex animal samples, this study fabricated hydroxy-, amino- and carboxyl …

Magnetic Separation: Principles, Devices, and Applications. A special issue of Magnetochemistry (ISSN 2312-7481). This special issue belongs to the section "Applications of Magnetism and Magnetic …

Advantages of Magnetic Separation. Conventional separation and purification approaches for pharmaceutical applications from biotechnological sources, such as the production of antibodies, require numerous steps: filtration, centrifugation, flocculation, sedimentation or crystallization, and chromatography techniques (Carta and …

Effects on magnetic separation; Size: Affects surface area to volume ratio: The magnetic force is proportional to the volume: Core: Provides the magnetic property: Necessary for the magnetic recovery: Coatings: Provides stability against corrosion and oxidation, enhances the physicochemical properties and biocompatibility:

In this work, a novel strategy was developed for separation and enrichment of sibiskoside by dummy molecular im technology and magnetic separation technology. The structural analogue geniposide was selected as the dummy template, using 4-vinylpyridine as the functional monomer, ethylene glycol dimethacrylate as the cross …

Fluorescence microscopy images of magnetic-separated CSFE-labeled SK-BR-3 in different concentrations from whole blood. a) 4 × 10 5 cells. b) 1 × 10 5 cells. c) 5 × 10 4 cells. d) 5000 cells. e) Control sample without magnetic separation with 1 × 10 5. f) 4 × 10 5 SK-BR-3.

An effective surface-enhanced Raman scattering (SERS) method is presented for the rapid identification and drug sensitivity analysis of pathogens in blood. In a first step, polyethyleneimine-modified magnetic microspheres (Fe3O4@PEI) were used to enrich bacteria from blood samples. Next, the Fe3O4@PEI@bacteria complex was …

Internal magnetic-field-enhanced photogenerated charge separation in ferromagnetic TiO 2 surface heterojunctions. Author links open overlay panel Guojing Wang a b, Shirong Xiong a, ... were detected using a Bruker EMXplus spectrometer. Steady-state surface photovoltage (SPV) measurements were obtained using custom …

Removal of 137 Cs using bioaccumulation and magnetic separation. We measured the separation of microalgae containing Cs + from liquid medium by use of PEI-MNPs. In an aqueous solution, the surface ...

The paper mainly researches on a method for quick resolution of ofloxacin using chiral magnetic surface molecular im polymers. Fe3O4 magnetic nanoparticles coated with silica is acted as the substrate. ... The separation of synthesized drugs has always been a challenge in the pharmaceutical industry. Therefore, …

The magnetic field's strength is concentrated away from the magnet surface. As material slides down the chute, the magnetic field reaches out into the flowing material. ... MPI will continue to produce magnetic separation, electronic inspection and material handling equipment vital to the industrial, food and healthcare industries.

Magnetic nanoparticles (MNPs) which exhibit magnetic and catalytic bifunctionalities have been widely accepted as one of the most promising nanoagents used in water purification processes. However, due to the magnetic dipole-dipole interaction, MNPs can easily lose their colloidal stability and tend to agglomerate. Thus, it is …

Surface enhanced Raman scattering (SERS) ... Magnetic separation and enrichment technique, with the advantages of ease of usage, low cost, and short processing time, have been intensively applied to capture target biomolecules to improve efficiency of detection [32]. In this study, immunomagnetic conjugates were prepared by …

Magnetization and magnetic separation is a method of magnetic separation by enhancing the volume magnetism or surface magnetism of minerals. By changing the volume magnetism (volume magnetization) or surface magnetism (surface …

npj Microgravity - Magnetic phase separation in microgravity. ... rocket firing 5,6, membranes 7,8, and surface-tension-based technologies 9,10, which include wedge geometries 11,12,13,14, ...

Magnetic separation means applying magnetic separators with the appropriate magnetic field intensity, magnetic field gradient, and other conditions to separate different minerals …

After magnetic separation, 5-bromo-4-chloro-3-indolyl phosphate (BCIP), a low SERRS active compound, was added as the substrate for ALP to generate a high SERRS response. Detection was conducted on a silver colloid/PVP/filter paper SERS substrate by spotting a pre-aggregated silver colloid sol onto polyvinyl pyrrolidone (PVP) …

Interests: magnetic separation; pulsating high-gradient magnetic separators; flotation separation; mineral magnetism; mineral surface chemistry. Dr. Jianwu Zeng ... We expected 200–500 nm to be advantageous for harvesting and as a compromise between the highly available surface and good separation properties. However, this …

Then, the chalcopyrite samples obtained were utilised for subsequent PHGMS separation tests and the characterisation of their magnetic and surface properties. In addition, for comparison purposes, a mixture of 50.0 g of ultrafine chalcopyrite and 100.0g of talc was treated with 3000.0 mL of a 5 % H 2 O 2 solution, while the reaction duration ...