An overview of nanoparticles in drug delivery: Properties and applications

South African Journal of Chemical Engineering, Journal Year: 2023, Volume and Issue: 46, P. 233 - 270

Published: Aug. 22, 2023

Today, in diverse medical and clinical fields, including cancer treatment, nanoscience has evolved evolved. Cancer its forms, on the other hand, have been rumored inclusive, many individuals suffer from this fatal lethal condition. Actually, even with medicinal effect, current therapeutic approaches, chemotherapy, radiotherapy, etc., create symptoms that are inconvenient for patients. Scientists scholars also working to establish and, strengthen options methods of therapy deal dangerous illness. Nanoscience nanotechnology popular today, their different areas, nanoparticles, commonly used a number applications, especially drug delivery diagnostic products, cases imaging. Release mechanisms focused profound effect release drugs. Biomaterials bio-engineering developments leading novel approaches nanoparticles could offer new way patients improve. In method, Nano-technology had great selection cells, targeted drug, overcoming traditional chemotherapy limitations. This article discusses tumor tissue, method is more effective than methods, solved problem cell resistance provided field treatment cancer.

Language: Английский

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Modeling Finned Thermal Collector Construction Nanofluid-based Al2O3 to Enhance Photovoltaic Performance

Civil Engineering Journal, Journal Year: 2023, Volume and Issue: 9(12), P. 2989 - 3007

Published: Dec. 1, 2023

Extensive research has been conducted to address the issue of reduced efficiency solar photovoltaic (PV) cells at high temperatures. To this problem, a hybrid cooling system developed. This uses thermal collector convert waste heat into reusable heat. Selecting best configuration and operational parameters for is crucial maximizing performance. achieve this, we computational fluid dynamics (CFD) modeling using ANSYS. Various factors affecting PV were analyzed, including design, mass flow rate, concentration Al2O3 nanofluids. Results showed that 12S finned exhibits lowest temperature cells, approximately 29.654 oC. The electrical influenced by We found with 1% water/Al2O3 nanofluid achieved highest (approximately 11.749%) rate 0.09 kg/s. addition collectors affects variations in rates, there no relation between connector type different Al2O3nanofluid concentrations. In other words, can be optimized enhance under high-temperature conditions. Doi: 10.28991/CEJ-2023-09-12-03 Full Text: PDF

Language: Английский

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A semi-analytical approach to investigate the entropy generation in a tangent hyperbolic magnetized hybrid nanofluid flow upon a stretchable rotating disk

Journal of Magnetism and Magnetic Materials, Journal Year: 2023, Volume and Issue: 574, P. 170664 - 170664

Published: March 28, 2023

Language: Английский

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Nanowires Properties and Applications: A Review Study

South African Journal of Chemical Engineering, Journal Year: 2023, Volume and Issue: 46, P. 286 - 311

Published: Aug. 22, 2023

One-dimensional nanostructures are generally cited as nanowires, nanofibers, nanotubes, and so on. The foremost prominent feature of these materials is their electrical conductivity, which, unlike classical physics, doesn't increase resistance because the diameter decreases. Numerous properties like optical, magnetic, biological, environmental sensory have created many applications for them altogether industries. nanowires (NWs) propose potential impact on electronics, computing, memory, data storage, communications, manufacturing, health, medicine, national security, other economic sectors well. NWs offer excellent surface-to-volume ratio (interface phenomena), low defect density, high optical output, controllable n-type making more appropriate sensitive sensing applications. with ultra-sensitive real-time detection capabilities lend in nano biosensors, chemical sensors, gas electrochemical sensors. been used improving absorption well collection efficacy photovoltaic devices. having small size, weight, cost mass production, also compatible commercial planar processes large-scale circuitry. In paper, authors focusing to summarize recent advances various fields such research, education, entertainment, power generation.

Language: Английский

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Adsorption of heavy metal ions use chitosan/graphene nanocomposites: A review study

Results in Chemistry, Journal Year: 2024, Volume and Issue: 7, P. 101332 - 101332

Published: Jan. 1, 2024

The emission of heavy metals in the environment has caused many problems world due to industrialization society and expansion urbanization. Environmental pollution, including greenhouse gases water-soluble toxic pollutants, is a major concern around world. One most important issues protecting health humans, animals plants cleanliness water. Water substance vital for all living things on planet. can be treated several ways, such as desalination, purification, osmosis, disinfection, deposition contaminants. Among these methods, adsorption method advantages over other methods. surface phenomenon during which contaminants are adsorbed adsorbent with physical forces depends factors temperature, pH, concentration contaminants, time phase contact particle size temperature nature pollutants adsorption. Chitosan received widespread attention an because its low cost great potentials. abundant hydroxyl amino groups that bind metal ions. However, it defects sensitivity thermal stability, mechanical strength, limit application chitosan wastewater treatment. functional modified improve performance via crosslinking graft modification. porosity specific area powder form not ideal, therefore, modification been attempted generate nanoparticles hydrogel. also integrated materials (e.g. graphene, zeolite) resulting composite improved performance. This review mainly focuses reports about derivatives remove different metals. preparation strategy, mechanism, affecting adsorbents each type discussed detail. Recent organic (dyes phenol) removal by briefly discussed.

Language: Английский

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Synthesis and Modification of Nanoparticles with Ionic Liquids: a Review

BioNanoScience, Journal Year: 2023, Volume and Issue: 13(2), P. 760 - 783

Published: March 2, 2023

Language: Английский

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Activation energy analysis of mobile microorganisms using conductive nanofluid flows: Mitigating toxic algal blooms in biotechnology applications

Alexandria Engineering Journal, Journal Year: 2024, Volume and Issue: 92, P. 321 - 335

Published: March 8, 2024

Motile microorganisms play a central role in ecosystems both natural habitats and laboratory settings. Their contribution to nutrient cycling is crucial their impact on human health can be significant. Furthermore, they are promising various biotechnological applications. Ongoing studies of microbial motility represent dynamic evolving field research with profound implications for our understanding biology, ecology, environmental science. The thermal properties the base material extremely advanced enable wide range industrial, technical process applications due radiation, variable heat transfer activation energy. Researchers still working hard find renewable energy sources that economical environmentally friendly. In this regard, past decade has seen growing interest potential nanoparticles as sources. current study aimed learn more about rheological thixotropic nanofluids surface Riga surrounded by rotating bacteria. For this, theoretical investigations have been performed 3D magneto-hydrodynamic micropolar-based Casson nanofluid influence generation considered present scenario. rheology Brownian motion, micro rotation thermophoresis also accounted for. Classical equations motion form PDEs transformed into ODEs applying similarity variables. converted then solved help shooting algorithm using Bvp4c MATLAB software. From an engineering point view, impression physical flow parameters dimensionless profiles demonstrated graphically tables. outcomes show enhancing porosity parameter significantly reduces velocity while opposite behaviour noted viscoelastic parameter. Moreover, temperature concentration fields boosted exponents. Present results validated existing ones. improve stability achieved bioconvection nanomaterials.

Language: Английский

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Recent advances in properties and applications of nanoporous materials and porous carbons

Carbon letters, Journal Year: 2022, Volume and Issue: 32(7), P. 1645 - 1669

Published: Sept. 5, 2022

Language: Английский

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Exploring dual solutions and thermal conductivity in hybrid nanofluids: a comparative study of Xue and Hamilton–Crosser models

Nanoscale Advances, Journal Year: 2023, Volume and Issue: 5(23), P. 6695 - 6704

Published: Jan. 1, 2023

Hybrid nanofluids show great potential for heat transport applications such as solar thermal systems, car cooling sinks, and energy storage. They possess better stability properties compared to standard nanofluids. In this study, a base fluid, methanol, is injected into an electrically conducting heat-generating/absorbing disk of permeable boundary, dual solutions are obtained. Two alternative models, Xue Hamilton-Crosser considered, their conductivities contrasted. Furthermore, radiation ohmic heating also convective boundary conditions utilized simulate overall gains or losses resulting from conduction, forced natural convection between nearby objects nearly constant temperature. Using similarity transform, the governing equations obtained numerically solved via bvp4c, finite difference method. It observed that presence magnetic field shrinking elevate rate wall stress. Additionally, skin friction coefficient distribution increase with transmission constraint while fluid flow diminish. particle clustering nano-layer creation suggest model exhibits conductivity than model.

Language: Английский

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Severe plastic deformation: Nanostructured materials, metal-based and polymer-based nanocomposites: A review

Heliyon, Journal Year: 2023, Volume and Issue: 9(12), P. e22559 - e22559

Published: Nov. 23, 2023

Significant deformation of the metal structure can be achieved without breaking or cracking metal. There are several methods for plastics. The most important these angular channel pressing process, high-pressure torsion, multidirectional forging extrusion-cyclic compression cumulative climbing connection consecutive concreting and smoothing method, pipe torsion. nanocomposite is a multiphase material which size one its phases less than 100 nm in at least dimension. Due to some unique properties, metal-based nanocomposites widely used engineering applications such as automotive aerospace industries. Polymer-based two-phase systems with polymer-based reinforcing (usually ceramic). These materials have simpler synthesis process variety industry, gas pipelines, sensors. Severe plastic (SPD) known best method producing bulk ultrafine grained nanostructured excellent properties. Different were developed that suitable sheet solid materials. During past decade, efforts been made create effective processes cylindrical tubes. In this paper, we review intended tubes, their effects on properties severe briefly introduced common materials, sheets, pipes, well background nanocomposites, concisely microstructural mechanical discussed. paper will focus introduction tube processes, then comparison them based advantages disadvantages from viewpoints processing

Language: Английский

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