Composite Microspheres for Separation of Plasmid DNA …
Raspberry-like colloidal polymer/magnetite/silica composite microspheres were rationally fabricated based on in situ growth or interfacial immobilization of magnetic nanoparticles (MNPs) onto the ...
Magnetic Nanoparticle-Containing Supports as Carriers of …
In this short review (Perspective), we identify key features of the performance of biocatalysts developed by the immobilization of enzymes on the supports containing …
A simple and rapid harvesting method for microalgae by in situ magnetic …
A simple and rapid harvesting method by in situ magnetic separation with naked Fe 3 O 4 nanoparticles has been developed for the microalgal recovery of Botryococcus braunii and Chlorella ellipsoidea.After adding the magnetic particles to the microalgal culture broth, the microalgal cells were adsorbed and then separated by an external magnetic field.
In situ immobilization of glucose oxidase and catalase in a …
The immobilization of enzymes on a solid material has a series of advantages over the use of free enzyme, including improved stability, enzyme separation, and reusability [4], and sometimes improving the substrate and support affinity [5]. There are several different methods that have been used for immobilization, for instance, entrapment ...
Composite microspheres for separation of plasmid DNA …
Raspberry-like colloidal polymer/magnetite/silica composite microspheres were rationally fabricated based on in situ growth or interfacial immobilization of magnetic nanoparticles (MNPs) onto the polymer matrices and the followed sol-gel coating process. ... rationally fabricated based on in situ growth or interfacial immobilization of magnetic ...
In situ reduction and stabilization of Ag NPs onto magnetic …
Abstract A novel core–shell-structured Ag-based magnetic functional polymer nanocatalyst, i.e., Fe3O4@SN/GLA@chitosan-Ag (SN represents animo-functionalized SiO2, GLA signifies glutaraldehyde), was fabricated via a simple and environmentally friendly method. The magnetic separation property of Fe3O4, the protection effects of SiO2, the reduction and …
In situ magnetic separation and immobilization of
In situ cell separation and immobilization of bacterial cells for biodesulfurization were developed by using superparamagnetic Fe (3)O (4) nanoparticles (NPs). The Fe (3)O (4) NPs were …
Magnetic nanoparticles as versatile carriers for enzymes immobilization
Wu et al. [66] proposed a simple and new procedure to synthesize magnetic Fe 3 O 4-chitosan nanoparticles by in-situ synthesis method and used as support material for the immobilization of lipase enzyme using glutaraldehyde as cross-linker. In this process, ferrous ions were added to the combination of chitosan and sodium tripolyphosphate solution.
A novel mechanism for in-situ mechanochemical reduction …
Bl/BaTiO 3-Mixing system, 0.1 g BaTiO 3 were added in agate pot with 10 mL pure water, and then situ ball milling was carried out in PBM-V-2L-A (Deco, China) at 600 rpm, the ball milling time is 2.0 h, the process is shown in the Fig. 1 a. After that, the solid from the centrifugal separation and freeze-drying was collected and named Bl/BaTiO 3, then were added in 10 …
Magnetic anaerobic granular sludge for sequestration and immobilization
Among them, magnetic adsorbents stand out as promising materials for heavy metal uptake, thanks to the benefits of rapid separation and recovery by an external magnetic field (Feng et al., 2020). Increasing attention has been paid to using magnetite (Fe 3 O 4 ) for sequestrating toxic metals because of its super magnetism, biocompatibility, and ...
PRIME PubMed | Zero-valent iron (ZVI) facilitated in-situ …
The 16 s rRNA sequencing revealed the variations in the microbial communities in response to ZVI and Se, which the magnetic separation could potentially mitigate in the long term. This study provides a novel technique to achieve in-situ Se remediation and recovery by combining ZVI reduction and magnetic separation.
Zero-valent iron (ZVI) facilitated in-situ selenium (Se) immobilization …
Zero-valent iron (ZVI) facilitated in-situ selenium (Se) immobilization and its recovery by magnetic separation: ... A novel approach that combines ZVI reduction and magnetic separation for in-situ Se remediation and recovery was demonstrated. With ZVI addition (group A), both Se(VI) removal processes and precipitation were promoted in the ...
In situ immobilization of a general resolving agent on the magnetic …
The functional magnetic nanotubes were easily separated from the racemic solution using an external magnetic field which demonstrated its feasibility of recycling the adsorbent. All processes including in situ immobilization, enantioseparation (enantioenrichment) and magnetic separation were done by single process in a short time (only 10min).
In situ immobilization of ultra-fine Ag NPs onto magnetic …
Novel magnetic Ag@RF@Fe 3 O 4 core-satellite (MCS) nanocomposites were prepared through in situ photoreduction upon bridging Fe(III) and Ag + via hydroxyl groups in resorcinol formaldehyde (RF) resin by virtue of the coordination effect. The catalytic activity of MCS nanocomposites was evaluated based on catalytic 4-nitrophenol (4-NP) reduction with …
Rapid immobilization of arsenic in contaminated soils by …
Fe-biochar was separated from the treated soil using magnetic separation. In the cycling test, the biochar was separated using a magnet and regenerated by stirring in a 0.1 mol/L NaOH solution for 6 h and then dried. ... To demonstrate the enhanced As immobilization by magnetic biochar combined with microwave irradiation, a series of controlled ...
Zero-valent iron (ZVI) facilitated in-situ selenium (Se) …
This study provides novel insights into in-situ Se remediation and recovery by combining ZVI reduction with magnetic separation. We investigated the immobilization process …
Magnetic immobilization of Bacillus subtilis natto cells for
Magnetic separation technology is scalable and can be easily integrated in a recycle loop in a bioreactor to achieve a rapid recovery of bacterial clusters. ... Li YG, Gao HS, Li WL, Xing JM, Liu HZ (2009) In situ magnetic separation and immobilization of dibenzothiophene-desulfurizing bacteria. Bioresour Technol 100:5092–5096. Article PubMed ...
In situ growth of TiO2 and its immobilization on PVDF films …
In situ growth technology can realize the nucleation and growth of TiO 2 on the film, which improves the binding force between the catalyst and the matrix while effectively suppressing the agglomeration of TiO 2.It provides an approach for preparing high-performance polymer/TiO 2 hybrid photocatalytic films. However, anatase TiO 2 with high photocatalytic …
Zero-valent iron (ZVI) facilitated in-situ selenium (Se) …
This study provides a novel technique to achieve in-situ Se remediation and recovery by combining ZVI reduction and magnetic separation. Keywords: Environmental …
Sulfidated nanoscale zero valent iron for in situ immobilization …
Sulfidated nanoscale zero valent iron for in situ immobilization of hexavalent chromium in soil and response of indigenous microbes ... high reactivity, and easy separation (Ling and Zhang, 2017; Zou et ... This phenomenon can be explained by the fact that the attachment of sulfur to nZVI reduces the magnetic attraction and electrostatic ...
In Situ Constructed Magnetic Core‐Shell Hydrogen‐Bonded …
The magnetic Fe 3 O 4 core enhances electron transfer between cobalt ions, boosts catalytic efficiency, and facilitates easy separation and recycling. This core-shell structure effectively activates PMS, achieving removal of Rhodamine B, a model wastewater dye, within 10 min (Rh B = 50 mg L −1, HFZ = 150 mg L −1, PMS = 1.5 m m, pH ...
A system of co-immobilized dual-enzyme and coenzyme for in-situ …
In this work, we tried to construct a co-immobilization system of glucose dehydrogenase (GDH), (R)-1-phenylethanol dehydrogenase ((R)-PEDH) and coenzyme with functional magnetic nanoparticles as carriers, so as to realize chiral (R)-1-phenylethanol highly selective production and coenzyme effective recycling. The enzymatic properties of ...
Magnetic field intensified bi-enzyme system with in situ …
Efficient dynamic interactions among cofactor, enzymes and substrate molecules are of primary importance for multi-step enzymatic reactions with in situ cofactor regeneration. Here we showed for the first time that the above dynamic interactions could be significantly intensified by exerting an external alternating magnetic field on magnetic nanoparticles …
A novel technique for in situ aggregation of Gluconobacter …
Here, we present a novel technique to immobilize magnetic particles onto whole G. oxydans in situ via a synthetic adhesive biomimetic material inspired by the protein glues of marine mussels. Our approach involves simple coating of a cell adherent polydopamine film onto magnetic nanoparticles, followed by conjugation of the polydopamine-coated nanoparticles to G. …
Arsenic immobilization and removal in contaminated soil …
In-situ stabilization is commonly used as a gentle option for environmental risk control of As contaminated soils (Fang et al., 2016; ... Further study needs to be considered on this immobilization/magnetic separation technique, such as application to different types of soil, the screening or optimization of magnetic materials, and the ...
In situ preparation of magnetic Fe3O4-chitosan
Request PDF | In situ preparation of magnetic Fe3O4-chitosan nanoparticles for lipase immobilization by cross-linking and oxidation in aqueous solution | A new and simple method has been proposed ...
In Situ Magnetite Formation and Long-Term Arsenic Immobilization …
In situ precipitation of magnetite and other minerals potentially sequesters dissolved arsenic (As) in contaminated aquifers. This study examines As retention and transport in aquifer sediments using a multistage column experiment in which magnetite and other minerals formed from added nitrate and f …
Advances on methods and easy separated support materials …
These factors could make the magnetic separation less effective. ... In situ preparation of magnetic Fe 3 O 4-chitosan nanoparticles for lipase immobilization by cross-linking and oxidation in ... Characterization and optimization of mesoporous magnetic nanoparticles for immobilization and enhanced performance of porcine pancreatic lipase. ...
Zero-valent iron (ZVI) facilitated in-situ selenium (Se) immobilization …
Zero-valent iron (ZVI) facilitated in-situ selenium (Se) immobilization and its recovery by magnetic separation: Mechanisms and implications for microbial ecology. Journal of Hazardous Materials, 473, Article 134591.
Zero-valent iron (ZVI) facilitated in-situ selenium (Se) …
A novel approach that combines ZVI reduction and magnetic separation for in-situ Se remediation and recovery was demonstrated. With ZVI addition (group A), both Se(VI) …