Screening of bacterial cells for biosorption of oxyanions: Application of micro-PIXE for measurement of biosorption

Tajer-Mohammad-Ghazvini, Parisa; Mashkani, Saeid Ghorbanzadeh

doi:10.1016/j.hydromet.2008.10.012

Cited by 15 publications

(3 citation statements)

References 41 publications

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“…For osmium, the results thus far also indicate that the Os abundance in macroalgae can also be highly variable (this study; Rooney et al, 2016). Further, in addition to macroalgae that are components of sediment organic matter, microorganisms can also accummulate Re (Prouty et al, 2014;Mashkani et al, 2009;Ghazvini and Mashkani, 2009), although to date, no data exists for osmium. Given the variability of Re and Os uptake by macroalgae, the 187 Re/ 188 Os composition of macroalgae is seen to range from ~10 to ~35,000 (this study; Rooney et al, 2016).…”

Section: Implications Of the 187mentioning

confidence: 99%

Osmium uptake, distribution, and 187Os/188Os and 187Re/188Os compositions in Phaeophyceae macroalgae, Fucus vesiculosus: Implications for determining the 187Os/188Os composition of seawater

Racionero-Gómez

Sproson

Selby

et al. 2017

Geochimica et Cosmochimica Acta

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Citation for published item:ioneroEq¡ omezD fF nd prosonD eFhF nd elyD hF nd qnnounD eF nd qr¤ okeD hFF nd qreenwellD rFgF nd furtonD uFF @PHITA 9ysmium uptkeD distriutionD nd IVUysGIVVys nd IVUeGIVVys ompositions in heophyee mrolgeD puus vesiulosus X implitions for determining the IVUysGIVVys omposition of sewterF9D qeohimi et gosmohimi etFD IWW F ppF RVESUF Further information on publisher's website: Use policyThe full-text may be used and/or reproduced, and given to third parties in any format or medium, without prior permission or charge, for personal research or study, educational, or not-for-prot purposes provided that:• a full bibliographic reference is made to the original source • a link is made to the metadata record in DRO • the full-text is not changed in any way The full-text must not be sold in any format or medium without the formal permission of the copyright holders.Please consult the full DRO policy for further details.

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Section: Implications Of the 187mentioning

confidence: 99%

Osmium uptake, distribution, and 187Os/188Os and 187Re/188Os compositions in Phaeophyceae macroalgae, Fucus vesiculosus: Implications for determining the 187Os/188Os composition of seawater

Racionero-Gómez

Sproson

Selby

et al. 2017

Geochimica et Cosmochimica Acta

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“…Unlike the above discussed approaches, NM can also be performed on untreated samples, without the requirement of chemical fixation or cryofixation (for biological samples) and allows the acquisition of elemental maps of the characteristic X-rays emitted, from micrometric to millimetric squared [34,[62][63][64][65]. In terms of sensitivity level, a proton probe can detect elemental traces at a resolution of some parts per million [66], which is well beyond the sensitivity limits of a scanning electron microprobe (one part in 10 3 ).…”

Section: Why the Nuclear Microscopy Technique?mentioning

confidence: 99%

Polymeric Membranes Doped with Halloysite Nanotubes Imaged using Proton Microbeam Microscopy

Vasco,

Arima,

Boudjelida

et al. 2023

Nanomaterials

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Polymeric membranes are useful tools for water filtration processes, with their performance strongly dependent on the presence of hydrophilic dopants. In this study, polyaniline (PANI)-capped aluminosilicate (halloysite) nanotubes (HNTs) are dispersed into polyether sulfone (PES), with concentrations ranging from 0.5 to 1.5 wt%, to modify the properties of the PES membrane. Both undoped and HNT-doped PES membranes are investigated in terms of wettability (static and time-dependent contact angle), permeance, mechanical resistance, and morphology (using scanning electron microscopy (SEM)). The higher water permeance observed for the PES membranes incorporating PANI-capped HNTs is, finally, assessed and discussed vis-à-vis the real distribution of HNTs. Indeed, the imaging and characterization in terms of composition, spatial arrangement, and counting of HNTs embedded within the polymeric matrix are demonstrated using non-destructive Micro Particle Induced X-ray Emission (µ-PIXE) and Scanning Transmission Ion Microscopy (STIM) techniques. This approach not only exhibits the unique ability to detect/highlight the distribution of HNTs incorporated throughout the whole thickness of polymer membranes and provide volumetric morphological information consistent with SEM imaging, but also overcomes the limits of the most common analytical techniques exploiting electron probes. These aspects are comprehensively discussed in terms of practical analysis advantages.

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“…Epidemiological studies have reported that long-term exposure to oxyanions may interfere with metabolic activities of living organisms, failure of multisystem organ by allosteric inhibition of sulfhydryl enzymes that are essential for regulating metabolic activities hence leading to death as an end point of toxicity. Conjunctivitis, hyperkeratosis, hyper pigmentation, cardiovascular diseases, disorder of central nervous system and peripheral vascular system, skin cancer and gangrene of the limbs are some of the toxicity that are triggered by oxyanions (Kashiwa et al 2000;Hassett et al 2005;Tajer Mohammad Ghazvini & Ghorbanzadeh Mashkani 2009;He & Yao 2010;Puranen et al 2010). Moreover, coal FA leachates can render surface and groundwater unsuitable for numerous defined uses (Iyer 2002;Praharaj et al 2002b;Lapa et al 2007;Prasad & Mondal 2009;Izquierdo & Querol 2012;Tsiridis et al 2012;Neupane & Donahoe 2013;Reinik et al 2014).…”

Section: Introductionmentioning

confidence: 99%

Simultaneous sorption of As, B, Cr, Mo and Se from coal fly ash leachates by Al3+-pillared bentonite clay: implication for the construction of activated geo-synthetic clay liner

Masindi

Gitari

Tutu

2017

Water Practice and Technology

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The present study reports the optimum conditions for intercalating the Al 3þ species to bentonite clay matrices and evaluate the potential of using Al 3þ -modified bentonite clay (Alum-Bent) for removal of oxyanionic species of As, B, Cr, Mo and Se from coal fly ash (FA) leachates. Removal of oxyanionic species was done in batch experimental procedures. Parameters optimized were: contact time, adsorbent dosage, concentration and pH. The adsorption affinity of Al 3þ -bentonite clay for oxyanionic species varied as follows: B ≈ Se . Mo . Cr ≈ As respectively. The adsorption data fitted better to Langmuir adsorption isotherm than Freundlich adsorption isotherm hence confirming mono-site adsorption. The adsorption kinetics fitted well pseudo-second-order kinetic model hence confirming chemisorption. The fact that most of the oxyanion were adsorbed at pH ! pHpzc indicated that both electrostatic and chemical interactions occurred with the clay surface and interlayers. The Al 3þ -modified bentonite clay successfully removed oxyanion species from generated coal FA leachates. This study shows that Al 3þ -modified bentonite clay is an effective adsorbent for oxyanion species in coal FA leachates and could be applied as a reactive barrier in coal FA retention ponds.

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Screening of bacterial cells for biosorption of oxyanions: Application of micro-PIXE for measurement of biosorption

Cited by 15 publications

References 41 publications

Osmium uptake, distribution, and 187Os/188Os and 187Re/188Os compositions in Phaeophyceae macroalgae, Fucus vesiculosus: Implications for determining the 187Os/188Os composition of seawater

Osmium uptake, distribution, and 187Os/188Os and 187Re/188Os compositions in Phaeophyceae macroalgae, Fucus vesiculosus: Implications for determining the 187Os/188Os composition of seawater

Polymeric Membranes Doped with Halloysite Nanotubes Imaged using Proton Microbeam Microscopy

Simultaneous sorption of As, B, Cr, Mo and Se from coal fly ash leachates by Al3+-pillared bentonite clay: implication for the construction of activated geo-synthetic clay liner

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