Titanium dioxide–based nanomaterials: application of their smart properties in biomedicine

Genchi, Giada Graziana

doi:10.1016/b978-0-12-819960-2.00002-x

Titanium Dioxide (Tio₂) and Its Applications 2021

DOI: 10.1016/b978-0-12-819960-2.00002-x

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Titanium dioxide–based nanomaterials: application of their smart properties in biomedicine

Giada Graziana Genchi

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2024

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Cited by 3 publications

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Features of Cu and TiO2 in the flow of engine oil subject to thermal jump conditions

Ahmad

Ali

Nisar

et al. 2021

Sci Rep

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The recent work investigates the heat transfer attributes in the flow of engine oil which comprises of nano-particles such as Cu and TiO2. The performance of Copper and Titanium oxide is over looked in the flow of engine oil. The energy equation is amended by the features of thermal radiation, viscous dissipation, and heat generation. The mathematical model signifies the porosity, entropy generation and moving flat horizontal surface with the non-uniform stretching velocity. Quasi-linearization, which is a persuasive numerical technique to solve the complex coupled differential equations, is used to acquire the numerical solution of the problem. Flow and heat transfer aspects of Cu–TiO2 in the flow are examined against the preeminent parameters. The flow is significantly affected by the thermal jump conditions and porous media. It is observed here that the temperature as well as heat transport rate is reduced with the effect of involved preeminent parameters. However, such fluids must be used with caution in applications where a control on the heat transfer is required. We may conclude that the recent study will provide assistance in thermal cooling systems such as engine and generator cooling, nuclear system cooling, aircraft refrigeration system, and so forth.

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Features of Cu and TiO2 in the flow of engine oil subject to thermal jump conditions

Ahmad

Ali

Nisar

et al. 2021

Sci Rep

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Numerical treatment of MHD Al₂O₃–Cu/engine oil-based nanofluid flow in a Darcy–Forchheimer medium: Application of radiative heat and mass transfer laws

Rasool

Shafiq

Wang

et al. 2023

Int. J. Mod. Phys. B

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This computational study was designed to examine the effect of alumina and copper on the flow of a nanofluid based on engine oil through a Darcy–Forchheimer porous media. The flow model incorporates the generalized radiative heat and mass transport rules. The Darcy–Forchheimer terms in the momentum equation and radiation term in the energy equation are integral parts of the governing nonlinear Navier–Stokes equations, which are two-dimensional partial differential equations. Under the constraint of the convective boundary, the stated PDEs are transformed into highly nonlinear versions of the ordinary differential equations. In order to solve the final ODEs, the numerical RK-45 approach is combined with the shooting methodology. Important aspects of the governing model include porosity, magnetohydrodynamics (MHD), a convective boundary, thermal radiation, and viscous dissipation. The final findings show that when the Forchheimer number increases, the velocity decreases because of the inertial effect included in the flow model. In addition, the velocity profile is improved due to the increased volume percentage of both kinds of nanoparticles. The temperature varies greatly depending on the volume fraction. A higher Biot number and the resulting convective border cause a greater heat flow than a non-convective barrier. For two particular examples, with and without MHD influence, interesting streamlines and contour graphs are produced.

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Review of Antimicrobial Properties of Titanium Dioxide Nanoparticles

Serov,

Gritsaeva,

Yanbaev

et al. 2024

IJMS

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There is a growing interest in the utilization of metal oxide nanoparticles as antimicrobial agents. This review will focus on titanium dioxide nanoparticles (TiO2 NPs), which have been demonstrated to exhibit high antimicrobial activity against bacteria and fungi, chemical stability, low toxicity to eukaryotic cells, and therefore high biocompatibility. Despite the extensive research conducted in this field, there is currently no consensus on how to enhance the antimicrobial efficacy of TiO2 NPs. The aim of this review is to evaluate the influence of various factors, including particle size, shape, composition, and synthesis parameters, as well as microbial type, on the antibacterial activity of TiO2 NPs against bacteria and fungi. Furthermore, the review offers a comprehensive overview of the methodologies employed in the synthesis and characterization of TiO2 NPs. The antimicrobial activity of TiO2 exhibits a weak dependence on the microorganism species. A tendency towards increased antibacterial activity is observed with decreasing TiO2 NP size. The dependence on the shape and composition is more pronounced. The most pronounced antimicrobial potential is exhibited by amorphous NPs and NPs doped with inorganic compounds. This review may be of interest to specialists in biology, medicine, chemistry, and other related fields.

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Titanium dioxide–based nanomaterials: application of their smart properties in biomedicine

Cited by 3 publications

References 40 publications

Features of Cu and TiO2 in the flow of engine oil subject to thermal jump conditions

Features of Cu and TiO2 in the flow of engine oil subject to thermal jump conditions

Numerical treatment of MHD Al₂O₃–Cu/engine oil-based nanofluid flow in a Darcy–Forchheimer medium: Application of radiative heat and mass transfer laws

Review of Antimicrobial Properties of Titanium Dioxide Nanoparticles

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Titanium dioxide–based nanomaterials: application of their smart properties in biomedicine

Cited by 3 publications

References 40 publications

Features of Cu and TiO2 in the flow of engine oil subject to thermal jump conditions

Features of Cu and TiO2 in the flow of engine oil subject to thermal jump conditions

Numerical treatment of MHD Al2O3–Cu/engine oil-based nanofluid flow in a Darcy–Forchheimer medium: Application of radiative heat and mass transfer laws

Review of Antimicrobial Properties of Titanium Dioxide Nanoparticles

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Numerical treatment of MHD Al₂O₃–Cu/engine oil-based nanofluid flow in a Darcy–Forchheimer medium: Application of radiative heat and mass transfer laws