Studies on the titanium dioxide nanoparticles: biosynthesis, applications and remediation

Waghmode, Meghmala; Gunjal, Aparna; Mulla, Javed; Patil, Neha N.; Nawani, Neelu

doi:10.1007/s42452-019-0337-3

Cited by 129 publications

(63 citation statements)

References 59 publications

(62 reference statements)

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“…Crystalline TiO 2 recently has gained great attention thanks to its special role in a wide range of applications in areas of photovoltaics, photocatalysis, photochromics, and sensors [33]. The employment of TiO 2 in industry has been a reality for almost 20 years [34], and TiO 2 -based nanomaterials are currently applied in a wide range of manufacturing fields (i.e., personal care, inks, plastics, food products, textiles, and medical devices) [35] and in the development of new anticancer therapies [36,37].…”

Section: Discussionmentioning

confidence: 99%

In Vitro Toxicity of TiO2:SiO2 Nanocomposites with Different Photocatalytic Properties

et al. 2019

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The enormous technological relevance of titanium dioxide (TiO2) nanoparticles (NPs) and the consequent concerns regarding potentially hazardous effects that exposure during production, use, and disposal can generate, encourage material scientists to develop and validate intrinsically safe design solution (safe-by-design). Under this perspective, the encapsulation in a silica dioxide (SiO2) matrix could be an effective strategy to improve TiO2 NPs safety, preserving photocatalytic and antibacterial properties. In this work, A549 cells were used to investigate the toxic effects of silica-encapsulated TiO2 having different ratios of TiO2 and SiO2 (1:1, 1:3, and 3:1). NPs were characterized by electron microscopy and dynamic light scattering, and cell viability, oxidative stress, morphological changes, and cell cycle alteration were evaluated. Resulting data demonstrated that NPs with lower content of SiO2 are able to induce cytotoxic effects, triggered by oxidative stress and resulting in cell necrosis and cell cycle alteration. The physicochemical properties of NPs are responsible for their toxicity. Particles with small size and high stability interact with pulmonary cells more effectively, and the different ratio among silica and titania plays a crucial role in the induced cytotoxicity. These results strengthen the need to take into account a safe(r)-by-design approach in the development of new nanomaterials for research and manufacturing.

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Section: Discussionmentioning

confidence: 99%

In Vitro Toxicity of TiO2:SiO2 Nanocomposites with Different Photocatalytic Properties

et al. 2019

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“…Owing to this nanometric size level, NPs can have versatile size-dependent and special properties such as catalytic, electrochemical, optical, magnetic features as well as increased surface to volume ratios which in turn make them the unique materials for modern applications. Metal oxide nanoparticles are amidst the most widely used NPs in a variety of applications including cosmetics ( Waghmode et al, 2019 ), drug and medicine industry ( Klȩbowski et al, 2018 ), detergents, agricultural systems ( Chen, 2018 ), environment ( Kanchi and Ahmed, 2018 ), antibacterial agents ( Mordorski and Friedman, 2017 ), paints and textiles ( Vigneshwaran et al, 2010 ). Nowadays, some metallic NPs including gold NPs (Au NPs), silver NPs (Ag NPs), and metallic magnetic NPs such as iron-oxide NPs (IONPs) are frequently utilized and improved in order to intensify their functions as diagnostic and remedial agents.…”

Section: Introductionmentioning

confidence: 99%

The Toxicity Phenomenon and the Related Occurrence in Metal and Metal Oxide Nanoparticles: A Brief Review From the Biomedical Perspective

Attarilar

Yang

Ebrahimi

et al. 2020

Front. Bioeng. Biotechnol.

158

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Thousands of different nanoparticles (NPs) involve in our daily life with various origins from food, cosmetics, drugs, etc. It is believed that decreasing the size of materials up to nanometer levels can facilitate their unfavorable absorption since they can pass the natural barriers of live tissues and organs even, they can go across the relatively impermeable membranes. The interaction of these NPs with the biological environment disturbs the natural functions of cells and its components and cause health issues. In the lack of the detailed and comprehensive standard protocols about the toxicity of NPs materials, their control, and effects, this review study focuses on the current research literature about the related factors in toxicity of NPs such as size, concentration, etc. with an emphasis on metal and metal oxide nanoparticles. The goal of the study is to highlight their potential hazard and the advancement of green non-cytotoxic nanomaterials with safe threshold dose levels to resolve the toxicity issues. This study supports the NPs design along with minimizing the adverse effects of nanoparticles especially those used in biological treatments.

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“…Furthermore, its low toxicity and biocompatibility have expanded the applications in food and biomedical areas as bone tissue engineering, dentistry and drug manufacturing [ 9 , 10 , 11 , 12 ]. In view of the important applications of TiO 2 NPs, it has been efficiently synthesized using biological resources such as bacteria, fungi and plants in eco-friendly and simple way [ 13 , 14 ]. To further broaden the horizon of synthesis and applications of nanoparticles, researchers continue to explore different bioresources for their production [ 15 , 16 ].…”

Section: Introductionmentioning

confidence: 99%

Multifunctional titanium dioxide nanoparticles biofabricated via phytosynthetic route using extracts of Cola nitida: antimicrobial, dye degradation, antioxidant and anticoagulant activities

Akinola

Lateef

Asafa

et al. 2020

Heliyon

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First study of phytosynthesis of TiO 2 NPs using the leaf (KL), pod (KP), seed (KS) and seed shell (KSS) extracts of kola nut tree ( Cola nitida ) is herein reported. The TiO 2 NPs were characterized and evaluated for their antimicrobial, dye degradation, antioxidant and anticoagulant activities. The nearly spherical-shaped particles had λmax of 272.5–275.0 nm with size range of 25.00–191.41 nm. FTIR analysis displayed prominent peaks at 3446.79, 1639.49 and 1382.96 cm −1 , indicating the involvement of phenolic compounds and proteins in the phytosynthesis of TiO 2 NPs. Both SAED and XRD showed bioformation of crystalline anatase TiO 2 NPs which inhibited multidrug-drug resistant bacteria and toxigenic fungi. The catalytic activities of the particles were profound, with degradation of malachite green by 83.48–86.28 % without exposure to UV-irradiation, scavenging of DPPH and H 2 O 2 by 51.19–60.08 %, and 78.45–99.23 % respectively. The particles as well prevented the coagulation of human blood. In addition to the antimicrobial and dye-degrading activities, we report for the first time the H 2 O 2 scavenging and anticoagulant activities of TiO 2 NPs, showing that the particles can be useful for catalytic and biomedical applications.

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Studies on the titanium dioxide nanoparticles: biosynthesis, applications and remediation

Cited by 129 publications

References 59 publications

In Vitro Toxicity of TiO2:SiO2 Nanocomposites with Different Photocatalytic Properties

In Vitro Toxicity of TiO2:SiO2 Nanocomposites with Different Photocatalytic Properties

The Toxicity Phenomenon and the Related Occurrence in Metal and Metal Oxide Nanoparticles: A Brief Review From the Biomedical Perspective

Multifunctional titanium dioxide nanoparticles biofabricated via phytosynthetic route using extracts of Cola nitida: antimicrobial, dye degradation, antioxidant and anticoagulant activities

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