An advanced investigation on a new algal sensor determining Pb(II) ions from aqueous media

Yüce, Meral; Nazır, Hasan; Dönmez, Gönül

doi:10.1016/j.bios.2010.08.022

Cited by 48 publications

(14 citation statements)

References 45 publications

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“…for Pb(II) determination from aqueous solution [121]. The linear range was comparable to the one obtained in the previous study, 5.0 × 10 −8 M–2.0 × 10 −5 M. The detection limit was 2.5 × 10 −8 M. Possible functional such as carboxyl, sulphoxide and alcoholic groups were involved in the accumulation of Pb 2+ as evidenced from FT-IR analysis spectrum.…”

Section: Types Of Materials Used As Electron Mediators and Immobilizisupporting

confidence: 81%

Recent Advances in Polymeric Materials Used as Electron Mediators and Immobilizing Matrices in Developing Enzyme Electrodes

Moyo

Okonkwo

Agyei

2012

Sensors

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Different classes of polymeric materials such as nanomaterials, sol-gel materials, conducting polymers, functional polymers and biomaterials have been used in the design of sensors and biosensors. Various methods have been used, for example from direct adsorption, covalent bonding, crossing-linking with glutaraldehyde on composites to mixing the enzymes or use of functionalized beads for the design of sensors and biosensors using these polymeric materials in recent years. It is widely acknowledged that analytical sensing at electrodes modified with polymeric materials results in low detection limits, high sensitivities, lower applied potential, good stability, efficient electron transfer and easier immobilization of enzymes on electrodes such that sensing and biosensing of environmental pollutants is made easier. However, there are a number of challenges to be addressed in order to fulfill the applications of polymeric based polymers such as cost and shortening the long laboratory synthetic pathways involved in sensor preparation. Furthermore, the toxicological effects on flora and fauna of some of these polymeric materials have not been well studied. Given these disadvantages, efforts are now geared towards introducing low cost biomaterials that can serve as alternatives for the development of novel electrochemical sensors and biosensors. This review highlights recent contributions in the development of the electrochemical sensors and biosensors based on different polymeric material. The synergistic action of some of these polymeric materials and nanocomposites imposed when combined on electrode during sensing is discussed.

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Section: Types Of Materials Used As Electron Mediators and Immobilizisupporting

confidence: 81%

Recent Advances in Polymeric Materials Used as Electron Mediators and Immobilizing Matrices in Developing Enzyme Electrodes

Moyo

Okonkwo

Agyei

2012

Sensors

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“…It was also verified that chemical modification by formaldehyde could enhance the electrochemical response (the analytical signal doubled), providing a considerable improvement in the analytical performance of the algal biosensor. This result was explained by the increased functional group content on the surface that allowed more Pb 2+ ions to bind [67].…”

Section: Whole Cellsmentioning

confidence: 84%

“…Algal cells from filamentous Cyanobacterium Phormidium sp. were proposed [67] to be the recognition element of a biosensor used for quantifying Pb 2+ at trace levels from aqueous solutions. According to this work [67], some important functional groups (mainly carboxyl and sulfoxide) were dominant contributors in Pb 2+ binding to the algal biomass.…”

Section: Whole Cellsmentioning

confidence: 99%

“…were proposed [67] to be the recognition element of a biosensor used for quantifying Pb 2+ at trace levels from aqueous solutions. According to this work [67], some important functional groups (mainly carboxyl and sulfoxide) were dominant contributors in Pb 2+ binding to the algal biomass. It was also verified that chemical modification by formaldehyde could enhance the electrochemical response (the analytical signal doubled), providing a considerable improvement in the analytical performance of the algal biosensor.…”

Section: Whole Cellsmentioning

confidence: 99%

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Recent developments in recognition elements for chemical sensors and biosensors

Justino

Freitas

Pereira

et al. 2015

TrAC Trends in Analytical Chemistry

269

118

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“…Toxic metals such as Al, Pb, Cr, Ni, Cu Cd, As, and Hg in the environment at low concentrations, especially in drinking water can cause serious health effects. Therefore, heavy metals have been recognized as one of the major problems for human health . Aluminum is one of these metals and it has no known essential role in living organisms.…”

Section: Introductionmentioning

confidence: 99%

Separation and Preconcentration of Aluminum by Candida albicans Immobilized on Cellulose Acetate Biomass

Çiftçi

Çevrimli

2016

CLEAN Soil Air Water

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In the present study, separation parameters of aluminum ions from aqueous solutions by Candida albicans immobilized on the cellulose acetate biomass (CAICAB) were investigated. The optimum experimental conditions for the preconcentration of aluminum were investigated. Amount of CAICAB, effect of common matrix ions and capacity of CAICAB were also obtained. 5 mL of 2 mol L À1 HCl were used for elution of adsorbed aluminum ions on CAICAB. After elution, analyte ions were determined by high resolution continuum source flame atomic absorption spectrometry. Under the optimized conditions, limit of detections for aluminum and adsorption capacity of CAICAB were 0.12 and 327.5 mg g À1 , respectively. The method developed was applied to the separation and determination of aluminum in water samples.Abbreviations: CAICAB, cellulose acetate biomass; HR CS-FAAS, high resolution continuum source flame atomic absorption spectrometry; LOD, limit of detection; PF, preconcentration factor.

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An advanced investigation on a new algal sensor determining Pb(II) ions from aqueous media

Cited by 48 publications

References 45 publications

Recent Advances in Polymeric Materials Used as Electron Mediators and Immobilizing Matrices in Developing Enzyme Electrodes

Recent Advances in Polymeric Materials Used as Electron Mediators and Immobilizing Matrices in Developing Enzyme Electrodes

Recent developments in recognition elements for chemical sensors and biosensors

Separation and Preconcentration of Aluminum by Candida albicans Immobilized on Cellulose Acetate Biomass

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