Magnetic separation of water suspensions containing TiO2 photocatalytic nanoparticles

Bakhteeva, Yu. A.; Медведева, И. В.; Zhakov, S. V.; Бызов, И. В.; Filinkova, Marina S.; Уймин, М. А.; Мурзакаев, А. М.

doi:10.1016/j.seppur.2021.118716

Cited by 9 publications

(4 citation statements)

References 47 publications

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“…Focusing on systems employing permanent magnets, these setups enable particles to migrate towards areas of increasing magnetic field gradients, thereby exerting a constant pressure that is directly proportional to the gradient. Constructing a magnetic field system with permanent magnets is relatively straightforward [ 129 ], with NdFeB magnets being widely available in various shapes and sizes at reasonable prices. The key benefits of using such permanent magnet systems include their operational independence from external power sources and the absence of the need for complex control mechanisms.…”

Section: Basic Principles Of Magnetogeneticsmentioning

confidence: 99%

Magnetogenetics as a promising tool for controlling cellular signaling pathways

Latypova,

Yaremenko,

Pechnikova

et al. 2024

J Nanobiotechnol

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Magnetogenetics emerges as a transformative approach for modulating cellular signaling pathways through the strategic application of magnetic fields and nanoparticles. This technique leverages the unique properties of magnetic nanoparticles (MNPs) to induce mechanical or thermal stimuli within cells, facilitating the activation of mechano- and thermosensitive proteins without the need for traditional ligand-receptor interactions. Unlike traditional modalities that often require invasive interventions and lack precision in targeting specific cellular functions, magnetogenetics offers a non-invasive alternative with the capacity for deep tissue penetration and the potential for targeting a broad spectrum of cellular processes. This review underscores magnetogenetics’ broad applicability, from steering stem cell differentiation to manipulating neuronal activity and immune responses, highlighting its potential in regenerative medicine, neuroscience, and cancer therapy. Furthermore, the review explores the challenges and future directions of magnetogenetics, including the development of genetically programmed magnetic nanoparticles and the integration of magnetic field-sensitive cells for in vivo applications. Magnetogenetics stands at the forefront of cellular manipulation technologies, offering novel insights into cellular signaling and opening new avenues for therapeutic interventions.

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Section: Basic Principles Of Magnetogeneticsmentioning

confidence: 99%

Magnetogenetics as a promising tool for controlling cellular signaling pathways

Latypova,

Yaremenko,

Pechnikova

et al. 2024

J Nanobiotechnol

View full text Add to dashboard Cite

show abstract

“…Focusing on systems employing permanent magnets, these setups enable particles to migrate towards areas of increasing magnetic field gradients, thereby exerting a constant pressure that is directly proportional to the gradient. Constructing a magnetic field system with permanent magnets is relatively straightforward [127], with NdFeB magnets being widely available in various shapes and sizes at reasonable prices. The key benefits of using such permanent magnet systems include their operational independence from external power sources and the absence of the need for complex control mechanisms.…”

Section: Magnetic Field and Action On A Target In Magnetogeneticsmentioning

confidence: 99%

Magnetogenetics as a Promising Tool for Controlling Cellular Signaling Pathways

Latypova,

Yaremenko,

Pechnikova

et al. 2024

Preprint

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Magnetogenetics emerges as a transformative approach for modulating cellular signaling pathways through the strategic application of magnetic fields and nanoparticles. This technique leverages the unique properties of magnetic nanoparticles (MNPs) to induce mechanical or thermal stimuli within cells, facilitating the activation of mechano- and thermosensitive proteins without the need for traditional ligand-receptor interactions. Unlike traditional modalities that often require invasive interventions and lack precision in targeting specific cellular functions, magnetogenetics offers a non-invasive alternative with the capacity for deep tissue penetration and the potential for targeting a broad spectrum of cellular processes. This review underscores magnetogenetics' broad applicability, from steering stem cell differentiation to manipulating neuronal activity and immune responses, highlighting its potential in regenerative medicine, neuroscience, and cancer therapy. Furthermore, the review explores the challenges and future directions of magnetogenetics, including the development of genetically programmed magnetic nanoparticles and the integration of magnetic field-sensitive cells for in vivo applications. Magnetogenetics stands at the forefront of cellular manipulation technologies, offering novel insights into cellular signaling and opening new avenues for therapeutic interventions.

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“…Иммобилизация частиц на элементы фильтров, волокна, пленки мембран облегчает их отделение от обрабатываемой воды, однако в этом случае значительно снижается их эффективность по сравнению с диспергированными частицами. Новые подходы, основанные на создании композитных наночастиц с магнитным ядром, позволяют удалять частицы из воды с помощью магнитного поля [68][69][70][71][72][73]. Однако малые магнитные моменты наноядер требуют применения сильных магнитных полей и градиентов магнитных полей, что является нетривиальной задачей для обработки больших объемов воды.…”

Section: новые сорбенты и нанокатализаторыunclassified

New Composite Materials and Processes for Chemical, Physico-Chemical and Biochemical Technologies of Water Purification

2023

Izv. Vyssh. Uchebn. Zaved. Khim. Khim. Tekhnol.

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In traditional methods of water purification, the use of chemical reagents leads to the appearance of toxic by-products and wastes that require complex energy-consumption processing technologies. In accordance with the principles of sustainable development and “green” technologies, a significant revision of existing water treatment methods is required. The review highlights the main trends of innovative development of water purification and disinfection technologies. Modifications of water treatment agents (flocculants, sorbents, membranes) by integration of nanoparticles, environmentally compatible materials and “smart” composites into traditional structures are described. The use of composite nanoparticles is promising, particularly the use of particles with the “magnetic core – shell” structure, in which functional elements are attached to the surface, that provide the selective capture of contaminants, including pathogenic microorganisms. The existence of the magnetic core makes it possible to manipulate particles by the applied magnetic field, which is important for their complete extraction from the water upon completion of their functions. The use of new composite flocculants containing inorganic and organic components capable of ensuring highly effective capture of contaminants from the water, significantly reduces the volumes of flocculants and generated sludges and therefore allows to reduce the cost of the sludges processing and the harm of their disposal in the environment. New carbon nanostructures and natural polymers have an important role to play. In the new generation membranes, the disperse nanoparticles may provide antibacterial and photocatalytic properties, resulting in the high efficiency of disinfection and purification. A novel trend is the development of hybrid structures of coagulants and membranes with the properties which are regulated by the external stimulus, which are temperature, pH, light, electric, magnetic and electromagnetic fields. The use of such «smart» structures will increase the purification efficiency, reduce energy consumption and water purification waste volumes, due to the decrease in membranes fouling. The use of biopolymers and composites based on plant raw materials for the water purification is attractive due to their natural decontamination under the influence of the components of the environment, such as air, soil micro-organisms and sunlight, but also due to the absence of the secondary pollution. Among innovative chemical water treatment technologies Advanced Oxidation Processes play an important role, in particular, by involving electromagnetic fields and ultrasonic activation. By these methods, harmful organic impurities and pathogens are destroyed without the intensive use of chemicals or the production of toxic by-products. The integration of biochemical wastewater treatment with a microalgae growing system can become a promising waste-free, cost-effective "green" technology.

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Magnetic separation of water suspensions containing TiO2 photocatalytic nanoparticles

Cited by 9 publications

References 47 publications

Magnetogenetics as a promising tool for controlling cellular signaling pathways

Magnetogenetics as a promising tool for controlling cellular signaling pathways

Magnetogenetics as a Promising Tool for Controlling Cellular Signaling Pathways

New Composite Materials and Processes for Chemical, Physico-Chemical and Biochemical Technologies of Water Purification

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