Adsorption of selenium (Se4+) ions pollution by pure rutile titanium dioxide nanosheets electrochemically synthesized

Rheima, Ahmed Mahdi; Mohammed, Mahdi A.; Jaber, Saly; Hameed, Shahad Abbas

doi:10.5004/dwt.2020.25846

Cited by 27 publications

(19 citation statements)

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“…2 . According to the Debye-Scherrer formula (plane 104), the average crystallite size was determined to be 12.65 nm [18,22].…”

Section: Cr 2 O 3 -Nps Synthesis and Characterizationmentioning

confidence: 99%

Impact of Chromium Oxide Nanoparticles on Growth and Biofilm Formation of Persistence Klebsiella pneumoniae Isolates

Marjani¹,

Aziz²,

Rheima³

et al. 2021

Nano BioMed ENG

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Bacterial persistence is recognized as a major cause of antibiotic therapy failure, causing biofilms and chronic intractable infections. The emergence of persisters in K. pneumoniae isolates has become a worldwide public health concern. Despite this clinical threat, currently, there are no viable means for eradicating K. pneumoniae persisters. In this project, chromium oxide (Cr 2 O 3 ) nanoparticles were synthesized by the photochemical method. The morphology, topographic and physical properties of nanosynthesized were described by transmission electron microscopy (TEM), atomic force microscopy (AFM), X-ray powder diffraction (XRD), and ultraviolet-visible spectroscopy (UV. vis) measurements. The obtained average size of Cr 2 O 3 -NPs was to be ranging from 11 to 30 nm. The activities of the Cr 2 O 3 -NPs for antibacterial and antibiofilm formation against persistent K. pneumoniae were assessed. The result showed a significant inhibitory effect of Cr 2 O 3 -NPs against K. pneumoniae. A, where the zones of inhibition were 12-18 mm, and the minimum inhibitory concentration (MIC) was 625 μg/mL. The concentration of Cr 2 O 3 -NPs of 10 mg/mL demonstrated the highest inhibition activity against biofilm formation (73.95 ± 2.17%), indicating the lowest inhibition (19.08 ± 1.32%) at a level of 0.625 mg/mL. Cr 2 O 3 -NPs therefore had a positive impact on biofilms that were produced by persistence isolates of K. pneumoniae.

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“…2 . According to the Debye-Scherrer formula (plane 104), the average crystallite size was determined to be 12.65 nm [18,22].…”

Section: Cr 2 O 3 -Nps Synthesis and Characterizationmentioning

confidence: 99%

Impact of Chromium Oxide Nanoparticles on Growth and Biofilm Formation of Persistence Klebsiella pneumoniae Isolates

Marjani¹,

Aziz²,

Rheima³

et al. 2021

Nano BioMed ENG

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“…Graphene nanosheets were synthesized using the electrochemical cell [10,[17][18], as shown in Figure 1. Accordingly, graphite rods (6.5 Â 75 mm) were used in the two electrodes, cathode and anode.…”

Section: Synthesis Of Graphene Nanosheetsmentioning

confidence: 99%

Antibacterial, antibiofilm, and antipersister cells formation of green synthesis silver nanoparticles and graphene nanosheets against Klebsiella pneumoniae

Aziz

Marjani

Rheima

et al. 2021

Reviews in Medical Microbiology

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The present work aimed to investigate the antibacterial, antibiofilm, and antipersistence effect of silver nanoparticles (AgNPs) green synthesis, graphene nanosheets, and graphene-silver nanocomposite against Klebsiella pneumonia. Fifty isolates of K. pneumoniae were collected from different clinical specimens and identified using the Vitek-2 system (BioMe'rieux, France). The antibacterial effect of green AgNPs, graphene nanosheets, and graphene-silver nanocomposite on persistence K. pneumonia isolates were detected using agar well diffusion assay. The minimum inhibition concentrations was employed by using the 96-well broth microdilution assay. The antibiofilm activity of all nanosynthesized was determined using a microtiter plate assay. The results of the current study showed that a combination of graphene-silver nanocomposite operatively eradicate the formation of biofilms and inhibit the formation of persister cells in persistence K. pneumoniae isolates, which sights that graphenesilver nanocomposite might be a promising candidate for the elimination and handling of biofilm-related infections caused by persister cells of K. pneumonia.

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“…(SPR) and has a preference in clinical applications over other mineral particles in terms of biocompatibility and non-cytotoxicity, 15 as well as their application in cancer treatment and imaging, genetic disease diagnosis, and photothermal therapy. 16,17 Purines have also been widely explored in metal complexes. [18][19][20][21][22] These complexes play an important role in many biological interactions.…”

Section: Introductionmentioning

confidence: 99%

Inhibition Effect of Gold (III) Theophylline Nano-complex on ALT Enzyme Activity in Human Serumof Iraqi Patients with Liver Disease

Jawad

Alkadir

2021

JCD

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Introduction: The ultrasonic sonication approach was used to create an Au(III) nano complex with theophylline. Methods: To explore and suggest the structure of the nano complex, UV-Vis spectroscopy, Fourier transform infrared (FT-IR), and carbon hydrogen and nitrogen (CHN) elemental studies were used. The FE-SEM was used to prove the nanoscale of the prepared complex and was to be less than 20 nm. The effect of the gold nano complex (Au (THP)2(Cl)2) on alanine transaminase (ALT) activity in the serum of chronic liver disease patients was investigated. Results: Compared to the control group, the patients with chronic liver disease with and without nano complex had a significant rise in serum levels of ALT activity (P < 0.001). Furthermore, in individuals with chronic liver disease who received nano complex, the blood levels of ALT activity were significantly lower than those who did not receive nano complex. The reason is that the Au nano complex aggressively interacts with carboxylic groups of important enzymes and inactivates them; further, the Au nano complex had an inhibitory effect on serum ALT activity.

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Adsorption of selenium (Se4+) ions pollution by pure rutile titanium dioxide nanosheets electrochemically synthesized

Cited by 27 publications

References 0 publications

Impact of Chromium Oxide Nanoparticles on Growth and Biofilm Formation of Persistence Klebsiella pneumoniae Isolates

Impact of Chromium Oxide Nanoparticles on Growth and Biofilm Formation of Persistence Klebsiella pneumoniae Isolates

Antibacterial, antibiofilm, and antipersister cells formation of green synthesis silver nanoparticles and graphene nanosheets against Klebsiella pneumoniae

Inhibition Effect of Gold (III) Theophylline Nano-complex on ALT Enzyme Activity in Human Serumof Iraqi Patients with Liver Disease

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