Manganese oxide nanoparticles synthesis route, characterization and optical properties

Mounika, Tirukoti; Belagali, S. L.; Vadiraj, K.T.

doi:10.1016/j.matpr.2022.11.017

Cited by 5 publications

(2 citation statements)

References 16 publications

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“…Additionally, the confirmation of the green synthesis of MnO 2 nanoparticles has been achieved through the identification of the unique absorption peak observed in the UV−vis spectra. Consistent with the findings of the work conducted by Mounika et al, 33 it was seen that MnO 2 nanoparticles exhibit a distinct peak in the UV−vis spectrum at a wavelength of 365 nm. The band gap of MnO 2 nanoparticles varies depending on the specific conditions.…”

Section: ■ Resultssupporting

confidence: 91%

Impacts of Biosynthesized Manganese Dioxide Nanoparticles on Antioxidant Capacity, Hematological Parameters, and Antioxidant Protein Docking in Broilers

Helbawi,

Abd El-Latif,

Toson

et al. 2024

ACS Omega

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Using green tomato extract, a green approach was used to synthesize manganese oxide nanoparticles (MnO 2 NPs). The synthesis of MnO 2 NPs was (20.93−36.85 nm) confirmed by energy-dispersive X-ray (EDX), scanning and transmission electron microscopy (SEM and TEM), Fourier transform infrared spectroscopy (FTIR), and UV−visible spectroscopy (UV−vis) analyses. One hundred fifty-day-old Arbor Acres broiler chicks were randomly divided into five groups. The control group received a diet containing 60 mg Mn/kg (100% NRC broiler recommendation). The other four groups received different levels of Mn from both bulk MnO 2 and green synthesized MnO 2 NPs, ranging from 66 to 72 mg/kg (110% and 120% of the standard level). Each group comprised 30 birds, in three replicates of 10 birds each. Generally, the study's results indicate that incorporating MnO 2 NPs as a feed additive had no negative effects on broiler chick growth, antioxidant status, and overall physiological responses. The addition of MnO 2 NPs, whether at 66 or 72 mg/kg, led to enhanced superoxide dismutase (SOD) activity in both serum and liver tissues of the broiler chicks. Notably, the 72 mg MnO 2 NPs group displayed significantly higher SOD activity compared to the other groups. The study was further justified through docking. High throughput targeted docking was performed for proteins GHS, GST, and SOD with MnO 2 . SOD showed an effective binding affinity of −2.3 kcal/mol. This research sheds light on the potential of MnO 2 NPs as a safe and effective feed additive for broiler chicks. Further studies are required to explore the underlying mechanisms and long-term effects of incorporating MnO 2 NPs into broiler feed, to optimize broiler production and promote its welfare.

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Section: ■ Resultssupporting

confidence: 91%

Impacts of Biosynthesized Manganese Dioxide Nanoparticles on Antioxidant Capacity, Hematological Parameters, and Antioxidant Protein Docking in Broilers

Helbawi,

Abd El-Latif,

Toson

et al. 2024

ACS Omega

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“…The same hydrothermal synthesis procedure of MnO 2 was carried out. The obtained product was washed several times and precipitate was collected after centrifugation and drying at 60°C [36]. Finally, the prepared GNR/MnO 2 nanocomposite was dispersed in 10 mL distilled H 2 O (0.5 mg/mL) using a high-frequency ultrasonicator.…”

Section: Methodsmentioning

confidence: 99%

Graphene Nanoribbons/Manganese Oxide Nanocomposite Modified Electrode for Detection of Antimicrobial Drug Nitrofurantoin

Nagarajan¹,

Magesh

Sundramoorthy

et al. 2023

Journal of Nanomaterials

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The design and development of a new kind of cost-effective electrode material with excellent selectivity and stability are still a great challenge in the field of electrochemical sensors. Recently, researchers have paid more attention to the electrochemical reduction of nitro compounds due to their hazardous nature. Nitro compounds play a vital role in various industrial applications. However, the direct discharge of nitro compounds to the environment as industrial wastewater is harmful. In this study, a nanocomposite made of 1D graphene nanoribbons decorated with manganese dioxide (GNR-MnO2) was prepared to fabricate an electrochemical transducer for the determination of nitrofurantoin (NFT) in biofluids. First, 1D GNR was prepared by unzipping of multiwalled carbon nanotubes. Second, the GNR was decorated with MnO2 by the hydrothermal reduction method. As-prepared GNR-MnO2 nanocomposite was comprehensively characterized by field emission scanning electron microscopy with EDX, XRD, UV–visible, electrochemical impedance spectroscopy, and cyclic voltammetry. Moreover, GNR-MnO2-coated glassy carbon electrode (GCE) exhibited good electrocatalytic activity toward NFT. The electroreduction of NFT was found at −0.40 V which was 50 mV lower than bare GCE. GNR-MnO2 nanocomposite modified GCE showed a well-defined linear reduction peak current for NFT from 10 nM to 1,000 µM. The selectivity of the sensor was also analyzed in the presence of other nitro compounds which confirmed that NFT can be selectively detected at −0.4 V. The GNR-MnO2 modified electrode was also able to separate reduction peaks of other nitro compounds. In addition, the detection of NFT was carried out in human urine samples with a good recovery of 99.60%–98.60%.

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Recent Advances in the Application of Manganese Oxide Nanoparticles for Remediation of Soil Contaminated with Organic Pollutants

Anegbe,

Ifijen

2024

The Minerals, Metals &Amp; Materials Series

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Manganese oxide nanoparticles synthesis route, characterization and optical properties

Cited by 5 publications

References 16 publications

Impacts of Biosynthesized Manganese Dioxide Nanoparticles on Antioxidant Capacity, Hematological Parameters, and Antioxidant Protein Docking in Broilers

Impacts of Biosynthesized Manganese Dioxide Nanoparticles on Antioxidant Capacity, Hematological Parameters, and Antioxidant Protein Docking in Broilers

Graphene Nanoribbons/Manganese Oxide Nanocomposite Modified Electrode for Detection of Antimicrobial Drug Nitrofurantoin

Recent Advances in the Application of Manganese Oxide Nanoparticles for Remediation of Soil Contaminated with Organic Pollutants

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