Green synthesis and evaluation of metabolic activity of starch mediated nanoceria

Darroudi, Majid; Sarani, Mina; Oskuee, Reza Kazemi; Zak, A. Khorsand; Hosseini, Hasan Ali; Gholami, Leila

doi:10.1016/j.ceramint.2013.07.116

Cited by 109 publications

(41 citation statements)

References 32 publications

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“…In vitro studies on Neuro2A cells demonstrated a dose-dependent toxicity with a nontoxic concentration of 175 μg/mL. Applying starch as a template for CeO 2 -NP synthesis by Darroudi et al 27 resulted in the formation of ultrafine CeO 2 -NP particles that were small in size and uniform in shape. Therefore, this method seems to be more appropriate for CeO 2 -NP synthesis for medical purposes.…”

Section: Biopolymer-mediated Synthesis Of Ceo 2 -Npsmentioning

confidence: 99%

“…Regarding unique potential of biopolymers in the development of bio-directed methods of CeO 2 -NP synthesis, Darroudi et al 27 also used Gum tragacanth (GT) for the production of CeO 2 -NPs by both chemical and biological methods. 28 The soluble fraction (tragacanthin or tragacanthic acid) of GT gives a sol form in distilled water, whereas the insoluble fraction (bassorin) swells to a gel form ( Figure 2).…”

Section: Biopolymer-mediated Synthesis Of Ceo 2 -Npsmentioning

confidence: 99%

“…Recently, CeO 2 -NPs have been synthesized through several bio-directed methods applying natural and organic matrices as stabilizing agents in order to prepare biocompatible CeO 2 -NPs and solve the challenges to safely and effectively use this metal oxide for biomedicinal purposes. 27,28,32 In the first part of the review, we discuss the literature on different green synthesis methods of CeO 2 -NPs (Table 1). Next, we discuss the effect of these CeO 2 -NPs on reducing their cytotoxicity in the biological environment.…”

Section: +mentioning

confidence: 99%

“…Similarly, Darroudi et al had synthesized CeO 2 -NPs using starch as a capping biopolymer. 27 The proposed mechanism, for starch-based synthesis of CeO 2 -NPs was that after dissolving starch in water, metal cations were attracted by oxygen of the OH branches. In vitro studies on Neuro2A cells demonstrated a dose-dependent toxicity with a nontoxic concentration of 175 μg/mL.…”

Section: Biopolymer-mediated Synthesis Of Ceo 2 -Npsmentioning

confidence: 99%

“…Therefore, the microenvironment and synthesis method adopted also plays an important role in determining the biological activity and toxicity of solvothermal, 21 ball milling, 22 thermal decomposition, 23 spray pyrolysis, 24 thermal hydrolysis 25 and sol-gel methods. [26][27][28] However, applying the mentioned methods deals with several drawbacks, such as toxic solvents and reagents usage, high temperature and pressure, and the requirement of external additives as stabilizing or capping agents during the reaction. As the physiochemical properties of NPs mostly depend on the synthesis procedure, the synthesis method of NPs for biological applications is very important.…”

Section: Introductionmentioning

confidence: 99%

See 4 more Smart Citations

Cerium oxide nanoparticles: green synthesis and biological applications

Charbgoo

Ahmad

Darroudi

2017

IJN

Self Cite

264

125

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CeO 2 nanoparticles (NPs) have shown promising approaches as therapeutic agents in biology and medical sciences. The physicochemical properties of CeO 2 -NPs, such as size, agglomeration status in liquid, and surface charge, play important roles in the ultimate interactions of the NP with target cells. Recently, CeO 2 -NPs have been synthesized through several bio-directed methods applying natural and organic matrices as stabilizing agents in order to prepare biocompatible CeO 2 -NPs, thereby solving the challenges regarding safety, and providing the appropriate situation for their effective use in biomedicine. This review discusses the different green strategies for CeO 2 -NPs synthesis, their advantages and challenges that are to be overcome. In addition, this review focuses on recent progress in the potential application of CeO 2 -NPs in biological and medical fields. Exploiting biocompatible CeO 2 -NPs may improve outcomes profoundly with the promise of effective neurodegenerative therapy and multiple applications in nanobiotechnology.

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Section: Biopolymer-mediated Synthesis Of Ceo 2 -Npsmentioning

confidence: 99%

Section: Biopolymer-mediated Synthesis Of Ceo 2 -Npsmentioning

confidence: 99%

Section: +mentioning

confidence: 99%

Section: Biopolymer-mediated Synthesis Of Ceo 2 -Npsmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

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Cerium oxide nanoparticles: green synthesis and biological applications

Charbgoo

Ahmad

Darroudi

2017

IJN

Self Cite

264

125

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Biosynthesis of cerium oxide nanoparticles and its cytotoxicity survey against colon cancer cell line

Miri

Darroudi

Sarani

2019

Applied Organom Chemis

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Nanoparticles of cerium oxide (CeO2‐NPs), as a metal oxide of rare earth, have found an important role in improving technologies such as polishing, the degradation of harmful industrial dyes and even the treatment of some diseases. Therefore, the development of quick and inexpensive production methods for CeO2‐NPs is sought by researchers. In the present study, we report the biosynthesis of CeO2‐NPs using aqueous extract of Salvadora persica. Synthesized nanoparticles were investigated through powder X‐ray diffraction (PXRD), ultraviolet–visible (UV–vis), Fourier transform infrared, transmission electron microscope (TEM), field emission scanning electron microscopy (FESEM), energy‐dispersive X‐ray and Raman techniques. The UV–vis result shows an absorption peak at 325 nm, which confirms the formation of CeO2‐NPs. The band‐gap of synthesized nanoparticles (4.1 eV) is higher than in its bulk state. PXRD and Raman show a crystalline fluorite cubic structure for synthesized nanoparticles. The morphology of synthesized nanoparticles shows a uniform and almost spherical shape via TEM and FESEM images. The particles size was estimated in the range of 10–15 nm. Cytotoxic activity of synthesized nanoparticles was determined through 3‐(4,5‐dimethylthiazol‐2‐yl)‐2,5‐diphenyltetrazolium bromide assay against a colon (HT‐29) cancer cell line. The results did not show any significant cytotoxic effect for synthesized samples even for concentration higher than 800 μg/mL. Hence, CeO2‐NPs were synthesized using a natural source; the procedure was rapid with good productivity and biosynthesized nanoparticles were non‐toxic.

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Improved cure characteristics and mechanical properties of an epoxidized natural rubber filled with cerium oxide nanoparticles: Influence of epoxide levels and filler loading

Jantachum,

Phokha,

Hunpratub

et al. 2023

J of Applied Polymer Sci

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In this study, cerium oxide nanoparticles (nanoceria, CeNP) were used as a nanofiller in epoxidized natural rubber with varying epoxide levels, including 25% epoxidation (ENR‐25) and 50% epoxidation (ENR‐50). Co‐precipitation methods were employed to synthesize a pure phase of CeNP with an average particle size of 11.4 ± 2.0 nm. CeNP was characterized using X‐ray diffraction (XRD), transmission electron microscopy (TEM), and X‐ray photoelectron spectroscopy. The effect of CeNP loading with 0–3 parts per hundreds of rubber (phr) on the properties of rubber nanocomposites was explored. ENR‐25 nanocomposites with 1 phr of CeNP exhibited higher tensile strength and elongation at break compared to ENR‐50 nanocomposites. These findings correspond to a lower Payne effect, improved scorch safety, and better processability. The strongest and most effective CeO2–ENR interactions via silane linkages are expected to outperform sulfur crosslinking in ENR‐25 having 1 phr of CeNP. Microstructural evaluation of an ENR‐25 sample containing 1 phr of CeNP indicated well‐distributed nanofillers in the ENR‐25 matrix, indicating that CeNP and ENR‐25 appeared to be well‐matched. Hardness of all ENR nanocomposites increased with CeNP loading. The cracking resistance, creep properties, and thermal stability of rubber nanocomposites were unaffected by addition of CeNP in the ENR‐25 and ENR‐50 samples.

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Green synthesis and evaluation of metabolic activity of starch mediated nanoceria

Cited by 109 publications

References 32 publications

Cerium oxide nanoparticles: green synthesis and biological applications

Cerium oxide nanoparticles: green synthesis and biological applications

Biosynthesis of cerium oxide nanoparticles and its cytotoxicity survey against colon cancer cell line

Improved cure characteristics and mechanical properties of an epoxidized natural rubber filled with cerium oxide nanoparticles: Influence of epoxide levels and filler loading

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