Evaluating the effectiveness of marine actinobacterial extract and its mediated titanium dioxide nanoparticles in the degradation of azo dyes

Priyaragini, S; Veena, S; Swetha, D; Karthik, Loganathan; Kumar, Gaurav; Rao, Kokati Venkata Bhaskara

doi:10.1016/s1001-0742(13)60470-2

Cited by 34 publications

(21 citation statements)

References 22 publications

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“…The AFM clearly depicts the formation of the rutile and anatase forms in the TiO 2 nanoparticles and also the surface morphology of the particles is uneven due to the presence of some of the aggregates and individual particles of TiO 2 (Kirthi et al 2011). The AFM image of biosynthesized TiO 2 NPs using marine actinobacteria was found to be spherical in shape with average size of 37.54 nm (Priyaragini et al 2013). …”

Section: Discussionmentioning

confidence: 97%

Efficacy of larvicidal activity of green synthesized titanium dioxide nanoparticles using Mangifera indica extract against blood-feeding parasites

Rajakumar¹,

Rahuman²,

Roopan

et al. 2014

Parasitol Res

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Titanium dioxide nanoparticles (TiO2 NPs) are considered to be among the best photocatalytic materials due to their long-term thermodynamic stability, strong oxidizing power, and relative non-toxicity. Nano-preparations with TiO2 NPs are currently under investigation as novel treatments for acne vulgaris, recurrent condyloma acuminata, atopic dermatitis, hyperpigmented skin lesions, and other non-dermatologic diseases. The present study was to investigate the acaricidal and larvicidal activity of synthesized TiO2 NPs utilizing leaf aqueous extract of Mangifera indica L. (Anacardiaceae) against hematophagous parasites. The anti-parasitic activity of TiO2 NPs against the larvae of Rhipicephalus (Boophilus) microplus, Hyalomma anatolicum anatolicum and Haemaphysalis bispinosa (Acari: Ixodidae), fourth instar larvae of Anopheles subpictus, and Culex quinquefasciatus (Diptera: Culicidae) were assessed. The green synthesized TiO2 NPs were analyzed by UV-Vis, FTIR, X-ray diffraction (XRD), AFM, SEM, and TEM. The XRD analysis of synthesized TiO2 NPs revealed the dominant peak at 2θ value of 27.81 which matched the 110 crystallographic plane of the rutile structure indicating the crystal structure. The FTIR spectra exhibited a prominent peak at 3,448 cm(-1) and showed OH stretching due to the alcoholic group, and the OH group may act as a capping agent. The SEM images of TiO2 NPs displayed spherical, oval in shape, individual, and some in aggregates. Characterization of the synthesized TiO2 NPs using AFM offered three-dimensional visualization and uneven surface morphology. The TEM micrograph showed agglomerates, round and slight elongation with an average size of 30 ± 5 nm. The maximum efficacy was observed in synthesized TiO2 NPs against the larvae of R. microplus, Hyalomma anatolicum anatolicum, Haemaphysalis bispinosa, A. subpictus, and Culex quinquefasciatus with LC50 value of 28.56, 33.17, 23.81, 5.84, and 4.34 mg/L, respectively. In the present study, a novel, simple, and eco-friendly approach has been suggested to control blood-feeding parasites.

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Section: Discussionmentioning

confidence: 97%

Efficacy of larvicidal activity of green synthesized titanium dioxide nanoparticles using Mangifera indica extract against blood-feeding parasites

Rajakumar¹,

Rahuman²,

Roopan

et al. 2014

Parasitol Res

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“…Currently a variety of metallic and nonmetallic nanoparticles such as gold, alginate, silver, copper, zinc, titanium, magnesium, platinum and silica etc., are emerged. These nanoparticles are used in various fields such as optical devices (Anderson and Moskovits, 2006), catalytic (Jiang et al, 2005), bactericidal (Sekar et al, 2011), antibiofouling (Agarwal et al, 2014), dye degradation (Priyaragini et al, 2014), electronic (Rao et al, 2000), sensor technology (Sharpe and Andreescu, 2015), treatment of some cancers (Praetorius and Mandal, 2007) and malaria (Karthik et al, 2013). This wide range of application justifies the research and development inputs required in the field of nanotechnology.…”

Section: Introductionmentioning

confidence: 99%

Antibacterial Activity of Biogenic Platinum Nanoparticles: An In vitro Study

Sharma¹

2017

Int.J.Curr.Microbiol.App.Sci

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“…Notably, nanotechnology can be used to form a wide range of nanoparticles that can act as catalysts in wastewater treatment . Nanoparticles are advantageous because of their large surface area, high catalytic reactivity, mass transfer potential and strong enzyme storage . The combined action of microbial cells or their metabolic products with nanoparticles in immobilization approaches to enhance degradation has been suggested .…”

Section: Introductionmentioning

confidence: 99%

Enhanced Methyl Orange Removal Using a Newly Isolated Bacterial Strain and Potassium‐Iodide‐Doped Hydroxyapatite Nanoparticles

Kilany

Ibrahim

Alshehri

et al. 2019

CLEAN Soil Air Water

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Due to the toxicity and mutagenicity of methyl orange (MO), it is necessary to eliminate MO from wastewater. A bacterial strain is isolated and identified that possesses a high MO decolorization ability. Furthermore, the cultural requirements and the decolorization behavior of the bacterial isolate are investigated. Potassium‐iodide‐doped hydroxyapatite (KI‐doped HAp) nanoparticles are synthesized and characterized. The enhancement of the decolorization rate using KI‐doped HAp nanoparticles is experimentally confirmed. The microbial toxicity assessment is evaluated against Bacillus subtilis, and the bacterial isolate is identified as the Enterococcus faecalis strain Kilany MO under accession number KY780590. This strain shows maximum decolorization of MO (86.4%) at 400 mg L−1, pH 6, and 30 °C for 48 h under static conditions. In addition, being extremely tolerant of concentrations of MO of up to 1000 mg L−1 or more, E. faecalis exhibited decolorizing activity through biosorption rather than adsorption. Scanning electron microscopy and energy dispersive X‐ray spectra revealed that KI‐doped HAp nanoparticles are nanorods that are 50–100 nm in size with a Ca/P molar ratio of 1.833. KI‐doped HAp nanoparticles enhanced decolorization, yielding a maximum removal of 95% within 48 h. A microbial toxicity study revealed that the bacterial metabolites are less toxic than MO. Hence, the potential of E. faecalis to withstand high concentrations of MO, especially in the presence of nanoparticles, may start a new trend in wastewater bioremediation strategy.

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Evaluating the effectiveness of marine actinobacterial extract and its mediated titanium dioxide nanoparticles in the degradation of azo dyes

Cited by 34 publications

References 22 publications

Efficacy of larvicidal activity of green synthesized titanium dioxide nanoparticles using Mangifera indica extract against blood-feeding parasites

Efficacy of larvicidal activity of green synthesized titanium dioxide nanoparticles using Mangifera indica extract against blood-feeding parasites

Antibacterial Activity of Biogenic Platinum Nanoparticles: An In vitro Study

Enhanced Methyl Orange Removal Using a Newly Isolated Bacterial Strain and Potassium‐Iodide‐Doped Hydroxyapatite Nanoparticles

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