Synthesis, characterization and advanced sustainable applications of titanium dioxide nanoparticles: A review

Irshad, Muhammad; Nawaz, Rab; Rehman, Muhammad Zia ur; Adrees, Muhammad; Rizwan, Muhammad; Ali, Shafaqat; Ahmad, Sajjad; Tasleem, Sehar

doi:10.1016/j.ecoenv.2021.111978

Cited by 239 publications

(91 citation statements)

References 123 publications

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“…The lack of demand for hazardous chemicals and harsh reaction conditions has made the green synthesis approach an interesting area for further research in the field of nanobiotechnology. To date, nanoparticles made of silver [40,41], gold [42,43], platinum [44,45], palladium [46,47], titanium [48,49], iron [50], zinc, and copper [51,52] have been manufactured. Surprisingly, plants also appear to be capable of nanoparticle formation within the cells [53][54][55][56].…”

Section: Introductionmentioning

confidence: 99%

Biosynthesis and Cytotoxic Properties of Ag, Au, and Bimetallic Nanoparticles Synthesized Using Lithospermum erythrorhizon Callus Culture Extract

Shkryl

Rusapetova

Yugay

et al. 2021

IJMS

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The present study reports a green chemistry approach for the rapid and easy biological synthesis of silver (Ag), gold (Au), and bimetallic Ag/Au nanoparticles using the callus extract of Lithospermum erythrorhizon as a reducing and capping agent. The biosynthesized nanoparticles were characterized with ultraviolet-visible (UV-Vis) spectroscopy, X-ray diffraction (XRD) analysis, and transmission electron microscopy (TEM). Our results showed the formation of crystalline metal nanostructures of both spherical and non-spherical shape. Energy dispersive X-ray (EDX) spectroscopy showed the characteristic peaks in the silver and gold regions, confirming the presence of the corresponding elements in the monometallic particles and both elements in the bimetallic particles. Fourier-transform infrared (FTIR) spectroscopy affirmed the role of polysaccharides and polyphenols of the L. erythrorhizon extract as the major reducing and capping agents for metal ions. In addition, our results showed that the polysaccharide sample and the fraction containing secondary metabolites isolated from L. erythrorhizon were both able to produce large amounts of metallic nanoparticles. The biosynthesized nanoparticles demonstrated cytotoxicity against mouse neuroblastoma and embryonic fibroblast cells, which was considerably higher for Ag nanoparticles and for bimetallic Ag/Au nanoparticles containing a higher molar ratio of silver. However, fibroblast migration was not significantly affected by any of the nanoparticles tested. The obtained results provide a new example of the safe biological production of metallic nanoparticles, but further study is required to uncover the mechanism of their toxicity so that the biomedical potency can be assessed.

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Section: Introductionmentioning

confidence: 99%

Biosynthesis and Cytotoxic Properties of Ag, Au, and Bimetallic Nanoparticles Synthesized Using Lithospermum erythrorhizon Callus Culture Extract

Shkryl

Rusapetova

Yugay

et al. 2021

IJMS

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“…Oryzae ( Xoo ) responsible for bacterial leaf blight in rice [ 124 ]. TiO 2 is another important metal oxide NP which has high refractive index ( n = 2.4), is highly stable and possesses specific magnetic, optical, electrical and thermal properties [ 125 ]. Due to these unique features, TiO 2 NPs finds applications in electronic devices, PV shell, sensing instruments, splitting and photocatalytic degradation [ 126 , 127 ].…”

Section: Strategies For Synthesis Of Nanoparticles Using Microbesmentioning

confidence: 99%

“…It was reported that nanocomposites having CuO and ZnO in a ratio of 20:80 (size 10–55 nm) degraded 97% of methylene blue dye. TiO 2 is another important metal oxide which is naturally obtained from rutile, brookite or anatase minerals and has an array of applications in pharmaceuticals, photocatalytic activity, food, bioremediation, agriculture and cosmetics [ 125 , 176 ]. The photocatalytic and antimicrobial activity of spherical TiO 2 NPs (anatase, size 6.7 nm) fabricated using Baker’s yeast was tested against methylene blue dye and the Gram-positive bacteria C. albicans [ 176 ].…”

Section: Fungi- and Yeast-mediated Biosynthesis Of Nanoparticlesmentioning

confidence: 99%

Microbe-Mediated Biosynthesis of Nanoparticles: Applications and Future Prospects

et al. 2021

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Nanotechnology is the science of nano-sized particles/structures (~100 nm) having a high surface-to-volume ratio that can modulate the physical, chemical and biological properties of the chemical compositions. In last few decades, nanoscience has attracted the attention of the scientific community worldwide due to its potential uses in the pharmacy, medical diagnostics and disease treatment, energy, electronics, agriculture, chemical and space industries. The properties of nanoparticles (NPs) are size and shape dependent. These characteristic features of nanoparticles can be explored for various other applications such as computer transistors, chemical sensors, electrometers, memory schemes, reusable catalysts, biosensing, antimicrobial activity, nanocomposites, medical imaging, tumor detection and drug delivery. Therefore, synthesizing nanoparticles of desired size, structure, monodispersity and morphology is crucial for the aforementioned applications. Recent advancements in nanotechnology aim at the synthesis of nanoparticles/materials using reliable, innoxious and novel ecofriendly techniques. In contrast to the traditional methods, the biosynthesis of nanoparticles of a desired nature and structure using the microbial machinery is not only quicker and safer but more environmentally friendly. Various microbes, including bacteria, actinobacteria, fungi, yeast, microalgae and viruses, have recently been explored for the synthesis of metal, metal oxide and other important NPs through intracellular and extracellular processes. Some bacteria and microalgae possess specific potential to fabricate distinctive nanomaterials such as exopolysaccharides, nanocellulose, nanoplates and nanowires. Moreover, their ability to synthesize nanoparticles can be enhanced using genetic engineering approaches. Thus, the use of microorganisms for synthesis of nanoparticles is unique and has a promising future. The present review provides explicit information on different strategies for the synthesis of nanoparticles using microbial cells; their applications in bioremediation, agriculture, medicine and diagnostics; and their future prospects.

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“…[101]. Additionally, for the synthesis of TiO 2 nanoparticles, a large number of green methods have already been proposed, based on extracts from plants, fungi, and even bacteria [102].…”

Section: Trends In Enhancing Coatings Performances On Cocr Alloys and Other Metallic Alloys (Including High-entropy Alloys)mentioning

confidence: 99%

Sustainable Coatings on Metallic Alloys as a Nowadays Challenge

2021

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Starting with a description of the meaning of sustainable coating nowadays, this review presents a selection of methods for sustainable coatings manufacture using raw materials, saving energy and costs. This selection creates an introduction for the coatings performances of intensively investigated coated alloys and their multifunctionality. There are many examples and EU recommendations to be discussed, and we especially chose to introduce sustainable coatings with both industrial and medical functions, such as bioinspired films and coatings on high-entropy alloys, biodegradable metallic alloys, etc. A special focus is on nanotechnology and nanomaterials in green procedures, enhancing coatings’ multifunctionality, introducing green corrosion inhibitors, smart additives, and coatings based on superhydrophobicity. The conclusions and future perspectives of sustainable and multifunctional coatings, as expressions of sustainable advanced materials, are based on important motivations of such studies.

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Synthesis, characterization and advanced sustainable applications of titanium dioxide nanoparticles: A review

Cited by 239 publications

References 123 publications

Biosynthesis and Cytotoxic Properties of Ag, Au, and Bimetallic Nanoparticles Synthesized Using Lithospermum erythrorhizon Callus Culture Extract

Biosynthesis and Cytotoxic Properties of Ag, Au, and Bimetallic Nanoparticles Synthesized Using Lithospermum erythrorhizon Callus Culture Extract

Microbe-Mediated Biosynthesis of Nanoparticles: Applications and Future Prospects

Sustainable Coatings on Metallic Alloys as a Nowadays Challenge

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