Single step growth of iron oxide nanoparticles and their use as glucose biosensor

Rahman, Sardar Siddique Ur; Qureshi, Muhammad Tauseef; Sultana, Kishwar; Rehman, Wajid; Khan, Muhammad Yaqoob; Asif, Muhammad; Farooq, Muhammad; Sultana, Nighat

doi:10.1016/j.rinp.2017.11.001

Cited by 72 publications

(26 citation statements)

References 34 publications

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“…Besides, other elements such as P and S were detected in a considerable weight percentage which could be attributed to other microbial biomolecules tightly conjugated with AgNPs. The presence of such elements was commonly observed, particularly in green synthesized NPs, which suggested that they provide NPs with stabilization and functionalization [29,30].…”

Section: Energy Dispersive X-ray Analysis (Edx)mentioning

confidence: 97%

“…The inoculated cultures were incubated for 120 h at 30 • C in an orbital shaker at 150 rpm. For enhancing the productivity of AgNPs, different parameters were scrutinized, including temperatures (4, 10, 20, 30, 40 and 50 • C), pH (5, 6, 7, 8 and 9), agitation (30,50,150 , urea; amino acids: L-alanine, L-glutamic acid, glycine, iso-leucine, valline, arginine, l-tyrosine, tryptophan; complex organic compounds: peptone, Lab-Lemco, casein hydrolysate, meat extract; dairy product wastes: whey). The incubation was followed as described formerly.…”

Section: Synthesis Of Agnps and Evaluation Of Factors Enhancing Their Productivitymentioning

confidence: 99%

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Antibacterial, Antifungal and Antibiofilm Activities of Silver Nanoparticles Supported by Crude Bioactive Metabolites of Bionanofactories Isolated from Lake Mariout

et al. 2021

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Lake Mariout is one of the polluted coastal marine ecosystems in Egypt which is considered to be a reservoir of serious effluents from different anthropogenic activities. Such selective pressure enforces indigenous microbial populations to acquire new advantageous themes. Thus, in this study, two Streptomyces strains were screened, from Lake Mariout’s sediment for bioreduction of 5 mM AgNO3. Both strains were identified molecularly; their biochemical and physiological characterization revealed their ability to secrete bioactive metabolites with antagonistic activity. The cultural and incubation conditions influencing AgNPs productivity were evaluated. Subsequently, the physicochemical properties of the biofabricated AgNPs were pursued. UV-Vis spectroscopy detected surface plasmon resonance at range 458–422 nm. XRD indicated crystalline, pure, face-centered cubic AgNPs; EDX demonstrated strong silver signal at 3.5 keV. Besides, FT-IR and TGA analysis unveiled self-stabilization and functionalization of AgNPs by bioorganic molecules. However, electron microscopy micrographs depicted numerous uniform spherical AgNPs (1.17–13.3 nm). Potent bactericidal and fungicide activity were recorded by zone of inhibition assay at 50 μg/mL. Further, the antibiofilm activity was exerted in a dose-dependent manner. Moreover, the conjugation of AgNPs with the crude bioactive metabolites of both bionanofactories ameliorated the antimicrobial potency, reflecting a synergistic efficiency versus examined pathogens (free-living and biofilm).

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Section: Energy Dispersive X-ray Analysis (Edx)mentioning

confidence: 97%

Section: Synthesis Of Agnps and Evaluation Of Factors Enhancing Their Productivitymentioning

confidence: 99%

Antibacterial, Antifungal and Antibiofilm Activities of Silver Nanoparticles Supported by Crude Bioactive Metabolites of Bionanofactories Isolated from Lake Mariout

et al. 2021

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“…Earlier studies reported that the color transformation from yellow to reddish black is the primary indication of the formation of iron oxide nanoparticles [24]. The aldehyde and polyphenol groups present in the leaf extract are responsible for the reduction of ferric chloride [12, 25].…”

Section: Resultsmentioning

confidence: 99%

Novelty of Bioengineered Iron Nanoparticles in Nanocoated Surgical Cotton: A Green Chemistry

Turakhia

Chikkala

Shah

2019

Advances in Pharmacological Sciences

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The current focus of nanotechnology is to develop environmentally safe methodologies for the formulation of nanoparticles. The phytochemistry of Zingiber officinale inspired us to utilize it for the synthesis of iron nanoparticles. GC-MS analysis revealed the phytochemical profile of ginger. Out of 20 different chemicals, gingerol was found to be the most potent phytochemical with a retention time of 40.48 min. The present study reports a rapid synthesis method for the formation of iron nanoparticles and its potential efficacy as an antibacterial agent and an antioxidant. Because of its antibacterial property, ginger extract was used to coat surgical cotton. Synthesized ginger root iron nanoparticles (GR-FeNPs) were characterized by UV-visible spectroscopy, Fourier-transform infrared spectroscopy (FT-IR), X-ray diffraction analysis, and particle size analysis. XRD confirmed the crystalline structure of iron oxide nanoparticles as it showed the crystal plane (2 2 0), (3 1 1), (2 2 2), and (4 0 0). The particle size analyzer (PSA) showed the average size of the particles, 56.2 nm. The antimicrobial activity of the FeNPs was tested against different Gram-positive and Gram-negative bacteria. E. coli showed maximum inhibition as compared with the other organisms. Antioxidant activity proved the maximum rate of free radicals at 160 µg/mL produced by nanoparticles. In addition, the antimicrobial activity of nanocoated surgical cotton was evaluated on the first day and 30th day after coating, which clearly showed excellent growth inhibition of organisms, setting a new path in the field of medical microbiology. Hence, iron-nanocoated surgical cotton synthesized using green chemistry, which is antimicrobial and cost effective, might be economically helpful and provide insights to the medical field, replacing conventional wound healing treatments, for better prognosis.

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“…The stronger peak corresponds to the bulk titanium, and the weaker one is related to the surface titanium [48]. The peaks of copper are located at 0.7, 8 and 9 keV [49], and iron (Fe) peaks are seen at 0.9, 6.1 and 7 keV [50].…”

Section: Fesem/edx Analysesmentioning

confidence: 98%

One-pot hydrothermal synthesis and characterization of magnetic nanocomposite of titania-deposited copper ferrite/ferrite oxide for photocatalytic decomposition of methylene blue dye

et al. 2019

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The pure titania (TiO 2) and the heterogeneous ternary magnetic nanocomposite of copper ferrite/ferrite oxide (CuFe 2 O 4 / Fe 2 O 3) deposited by titanium dioxide (TiO 2) were fabricated using a facile one-pot hydrothermal synthesis for the photocatalytic decomposition of methylene blue (MB) dye, under visible light. The nanocomposite was encoded as TCF in this work, where T stands for TiO 2 , C for CuFe 2 O 4 and F for Fe 2 O 3. Various techniques such as powder X-ray diffraction (PXRD), field emission scanning electron microscopy (FESEM), energy-dispersive X-ray spectroscopy, diffuse reflectance spectroscopy, nitrogen physisorption, and vibrational sample magnetometry (VSM) were used to characterize the prepared samples. The PXRD data showed that the samples had pure anatase structure and the average crystal size of anatase TiO 2 in the pure titania and ternary nanocomposite were calculated 147 Å and 135 Å, respectively. The nitrogen physisorption analysis data showed that the pore diameter was increased from 10.6 nm in pure titania to 16.0 nm in TCF. The pore volume was also increased from 0.316 in titania to 0.383 cm 3 /g in TCF sample. It also increased the typical magnitude of the mesopores' diameter and volume per weight but it reduced the specific surface area of the samples. The VSM analysis of the ternary nanocomposite showed a considerable magnetic property of the sample (1.99 emu/g), qualifying it as a paramagnetic material. The photocatalytic decomposition efficiency of MB reached 77% and 68% in the presence of pure titania and TCF ternary nanocomposite, after 240-min exposure by the visible light. Active species trapping experiments showed that the major active species responsible for the photodecomposition of MB in the presence of TCF are O ⋅− 2 radicals and holes (h +).

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Single step growth of iron oxide nanoparticles and their use as glucose biosensor

Cited by 72 publications

References 34 publications

Antibacterial, Antifungal and Antibiofilm Activities of Silver Nanoparticles Supported by Crude Bioactive Metabolites of Bionanofactories Isolated from Lake Mariout

Antibacterial, Antifungal and Antibiofilm Activities of Silver Nanoparticles Supported by Crude Bioactive Metabolites of Bionanofactories Isolated from Lake Mariout

Novelty of Bioengineered Iron Nanoparticles in Nanocoated Surgical Cotton: A Green Chemistry

One-pot hydrothermal synthesis and characterization of magnetic nanocomposite of titania-deposited copper ferrite/ferrite oxide for photocatalytic decomposition of methylene blue dye

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