Green synthesis of titanium dioxide nanoparticles using Laurus nobilis (bay leaf): antioxidant and antimicrobial activities

Rajeswari, V. Devi; Eed, Emad M.; Elfasakhany, Ashraf; Badruddin, Irfan Anjum; Kamangar, Sarfaraz; Brindhadevi, Kathirvel

doi:10.1007/s13204-021-02065-2

Cited by 17 publications

(2 citation statements)

References 49 publications

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“…These methods use biological resources such as plants, fungi, and bacteria. The use of these renewable resources, including plants (inactivated plant tissues, plant extracts and living plants) in phytosynthesis of nanoparticles reduces the need to use toxic chemicals and solvents and makes them ideal for use in biomedical applications 7 – 9 . Plant extracts are non-toxic, cheap and easily accessible.…”

Section: Introductionmentioning

confidence: 99%

Bioengineered synthesis of phytochemical-adorned green silver oxide (Ag2O) nanoparticles via Mentha pulegium and Ficus carica extracts with high antioxidant, antibacterial, and antifungal activities

Shirazi

Farimani

Foroumadi

et al. 2022

Sci Rep

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Silver oxide nanoparticles have various biomedical and pharmaceutical applications. However, conventional nanofabrication of Ag2O is associated with the use of toxic chemicals and organic solvents. To circumvent this hurdle, herein silver oxide quantum dots (Ag2O-QDs) were synthesized quickly (3 min) via the use of ultrasonic irradiation and plant-extract. Additionally, due to ultrasonic irradiation's effect on cell-wall destruction and augmentation of extraction efficiency, ultrasonic was also used in the preparation of Mentha pulegium and Ficus carica extracts (10 min, r.t) as natural eco-friendly reducing/capping agents. The UV–Vis result indicated a broad absorption peak at 400–500 nm. TEM/SEM analysis showed that ultrasound introduced a uniform spherical particle and significantly reduced particle size compared to the conventional heating method (∼ 9 nm vs. ∼ 100 nm). Silver and oxygen elements were found in the bio-synthesized Ag2O by EDS. The FTIR and phenol/flavonoid tests revealed the presence of phenol and flavonoid associated with the nanoparticles. Moreover, nanoparticles exhibited antioxidant/antibacterial/antifungal activities. The MIC and MBC results showed the Ag2O QDs synthesized with M. pulegium extract have the highest antibacterial activity against E. coli (MBC = MIC:15.6 ppm), which were significantly different from uncoated nanoparticles (MBC = MIC:500 ppm). The data reflects the role of phyto-synthesized Ag2O-QDs using ultrasonic-irradiation to develop versatile and green biomedical products.

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Section: Introductionmentioning

confidence: 99%

Bioengineered synthesis of phytochemical-adorned green silver oxide (Ag2O) nanoparticles via Mentha pulegium and Ficus carica extracts with high antioxidant, antibacterial, and antifungal activities

Shirazi

Farimani

Foroumadi

et al. 2022

Sci Rep

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“…The extended surface area of the nano-antioxidants not only accelerates the radical scavenging performance but also provides greater opportunities for functionalization and other surface modifications to ensure targeted delivery 14 . Most of the green-synthesized TiO 2 NPs are also known to exhibit antioxidant properties 15 , 16 . Thus, by changing different synthesis parameters, antioxidant behaviour of the TiO 2 NPs can be modified.…”

Section: Introductionmentioning

confidence: 99%

In-vitro pH-responsive release of imatinib from iron-supplement coated anatase TiO2 nanoparticles

Bhullar

Goyal

Gupta³

2022

Sci Rep

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Targeted drug delivery is one such precision method of delivering medication inside the human body which can vanquish all the limitations of the conventional chemotherapeutic techniques. In the present study, two types of nanoparticles (NPs) were chosen for the in-vitro pH-responsive release study of the drug, Imatinib, namely anatase Titanium Dioxide nanoparticles (TiO2 NPs) and iron-capped TiO2 NPs, designated as Fe@TiO2 NPs. The novelty of this work lies behind the use of commercially available iron supplement ‘Autrin’ meant for human consumption, as the material to coat the TiO2 NPs to synthesize Fe@TiO2 NPs. The synthesized NPs were analyzed by XRD, HR‐TEM, SAED, EDX and VSM. UV–Vis spectroscopy was performed for absorption studies. Fe@TiO2 NPs showed superparamagnetic behavior and thus they are able to ensure the facile transfer of Imatinib via external magnetic fields. The results obtained from in-vitro drug release studies depicted that both TiO2 NPs and Fe@TiO2 NPs showed a controlled pH-sensitive delivery of the loaded Imatinib molecules. Moreover, both types of NPs do not result in the formation of ROS under human physiological conditions. These results can lay the foundation to the development of efficacious targeted drug delivery systems in the healthcare sector.

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Green synthesized Waste‐Derived Anatase form of TiO₂ Nanoparticles from Hordeum vulgare L. (Barley): A Multidisciplinary Approach Connecting Biology, Environment, and Agriculture

Chakraborty,

2024

ChemistrySelect

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Biological methods for creating nanoparticles utilizing plant‐based extracts have generated considerable interest due to their desirable ecological characteristics when compared to chemical methods. In this, TiO2 NPs were synthesized from the waste of the Hordeum vulgare L. We employed various methods for characterizing our sample, including Ultraviolet‐visible spectroscopy, Fourier transform infrared spectroscopy (FTIR), X‐ray diffraction, Scanning electron microscopy, Energy dispersive X‐ray spectroscopy, thermogravimetric analysis, AFM, Dynamic light scattering and Zeta‐potential to confirm the TiO2 NPs (Titanium dioxide Nanoparticles) synthesis followed by biological applications such as anti‐microbial, and anti‐oxidant assays to confirm TiO2 NPs biological properties. The photocatalytic activity of the TiO2 nanoparticles was also studied followed by a full factorial method to understand the consequences of time, pH, and concentration on the dye degradation. Apart from this, the synthesized nanoparticles were also used to check the agricultural efficacy on Phaseolus vulgaris plant seed, where it was seen that the TiO2 nanoparticles not only enhanced the growth of the plant at lower concentrations but also enhanced the photosynthetic activity and chlorophyll, phenol and flavonoid content of it when compared to higher concentration and control. The molecular aspects (DNA) were also analyzed by gel electrophoresis to check the effect of TiO2 nanoparticles on the DNA of plants at different concentrations. Our study focuses on making the best use of the waste of Hordeum vulgare L. to synthesize biogenic TiO2 nanoparticles that can prove themselves to be one of the significant options for the industrial, agricultural, and biological world.

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Green synthesis of titanium dioxide nanoparticles using Laurus nobilis (bay leaf): antioxidant and antimicrobial activities

Cited by 17 publications

References 49 publications

Bioengineered synthesis of phytochemical-adorned green silver oxide (Ag2O) nanoparticles via Mentha pulegium and Ficus carica extracts with high antioxidant, antibacterial, and antifungal activities

Bioengineered synthesis of phytochemical-adorned green silver oxide (Ag2O) nanoparticles via Mentha pulegium and Ficus carica extracts with high antioxidant, antibacterial, and antifungal activities

In-vitro pH-responsive release of imatinib from iron-supplement coated anatase TiO2 nanoparticles

Green synthesized Waste‐Derived Anatase form of TiO₂ Nanoparticles from Hordeum vulgare L. (Barley): A Multidisciplinary Approach Connecting Biology, Environment, and Agriculture

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Green synthesis of titanium dioxide nanoparticles using Laurus nobilis (bay leaf): antioxidant and antimicrobial activities

Cited by 17 publications

References 49 publications

Bioengineered synthesis of phytochemical-adorned green silver oxide (Ag2O) nanoparticles via Mentha pulegium and Ficus carica extracts with high antioxidant, antibacterial, and antifungal activities

Bioengineered synthesis of phytochemical-adorned green silver oxide (Ag2O) nanoparticles via Mentha pulegium and Ficus carica extracts with high antioxidant, antibacterial, and antifungal activities

In-vitro pH-responsive release of imatinib from iron-supplement coated anatase TiO2 nanoparticles

Green synthesized Waste‐Derived Anatase form of TiO2 Nanoparticles from Hordeum vulgare L. (Barley): A Multidisciplinary Approach Connecting Biology, Environment, and Agriculture

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Green synthesized Waste‐Derived Anatase form of TiO₂ Nanoparticles from Hordeum vulgare L. (Barley): A Multidisciplinary Approach Connecting Biology, Environment, and Agriculture