Linear and nonlinear regression analysis for heavy metals removal using Agaricus bisporus macrofungus

Nagy, Boldizsár; Mânzatu, Carmen; Măicăneanu, Andrada; Indolean, Cerasella; Barbu–Tudoran, Lucian; Majdik, Cornelia

doi:10.1016/j.arabjc.2014.03.004

Cited by 132 publications

(63 citation statements)

References 30 publications

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“…The physical and chemical properties of any given melanin sample depend on the type, species and sample previous history (e.g. physicochemical environment, age, (bio)synthesis pathway(s)) . Early work on melanin binding was ‘empirical’ in nature, and the main properties studied were binding affinity and binding efficiency.…”

Section: Melanin Binding: General Commentsmentioning

confidence: 99%

Melanin from a physicochemical point of view

Menter

2016

Polymer International

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Melanin has an ambivalent nature; it can act as a protective or anti‐protective agent, depending on its previous history. In this article we briefly review the current state of understanding of melanin structure and biosynthesis, its binding with drugs and metals, its adsorption and (photo)semiconductive properties, and its ability to couple redox reactions There is now a greater appreciation of the structural and spectroscopic differences between 5,6‐dihydroxyindole and 5,6‐dihydroxyindole‐2‐carboxylic acid melanins and a greater knowledge of the kinetics of eumelanin to pheomelanin and neuromelanin transformations and the molecular links among them. The scope of drug and metal binding to melanin has expanded. Recent work has shown that melanin can act as an electronic–ionic conductor. Melanin can couple redox reactions for biologically and commercially relevant solid and gaseous systems. © 2016 Society of Chemical Industry

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Section: Melanin Binding: General Commentsmentioning

confidence: 99%

Melanin from a physicochemical point of view

Menter

2016

Polymer International

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“…Describing the regression correlation coefficient variations (R The Langmuir model expresses that the uptake of metal ions is monolayer sorption on a homogenous surface [53]. Moreover, Freundlich model presumed a multilayer sorption on a heterogeneous surface on the SPE active sites with different energy [54].…”

Section: Adsorption Isothermmentioning

confidence: 99%

Retention Profile of Zn2+ and Ni2+ Ions from Wastewater onto Coffee Husk: Kinetics and Thermodynamic Study

Alhogbi¹,

Al-Enazi²

2018

JEAS

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In this work, Coffee husk (CH) was used as a solid phase extractor (SPE) for removal and/or minimization of Zn 2+ and Ni 2+ ions in aqueous media. XRD, FESEM and FTIR analysis of the SPE were performed for surface morphology and function groups characterisation. Batch mode adsorption studies were performed by varying the operational parameters such as adsorbent dose, solution pH, initial analyte concentration and contact time. The equilibrium data of both analytes was found a better fit with the Langmuir and Freundlich isotherm models. The q m of Langmuir for Zn 2+ and Ni 2+ ions were 12.987 and 11.11 mg/g, respectively. The adsorption capacities of the CH adsorbent towards Zn 2+ and Ni 2+ resulted of 12.53 and 10.33 mg/g, respectively. In addition, the kinetic data of Zn 2+ and Ni 2+ ions uptake revealed that the present system fitted well with pseudo-second-order kinetic model (R 2 > 0.99). Thermodynamic studies showed that the retention step was exothermic, and spontaneous in nature. The results indicated that the coffee husk provides an effective and economical approach in highly reducing or almost eradication of both metals Zn 2+ and Ni 2+ from the aqueous solution.

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“…The samples were studied under vacuum, using a JEOL JSM 5510 LV Scanning Electronic Microscope, after a vacuum metalizing technique (Nagy et al, 2014).…”

Section: Scanning Electronic Microscopymentioning

confidence: 99%

Morphological and Histo-Anatomical Study of Bryonia alba L. (Cucurbitaceae)

Rus

Ielciu

Păltinean

et al. 2015

Not Bot Hort Agrobot Cluj

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The purpose of this study consisted in the identification of the macroscopic and microscopic characters of the vegetative and reproductive organs of Bryonia alba L., by the analysis of vegetal material, both integral and as powder. Optical microscopy was used to reveal the anatomical structure of the vegetative (root, stem, tendrils, leaves) and reproductive (ovary, male flower petals) organs. Histo-anatomical details were highlighted by coloration with an original combination of reagents for the double coloration of cellulose and lignin. Scanning electronic microscopy (SEM) and stereomicroscopy led to the elucidation of the structure of tector and secretory trichomes on the inferior epidermis of the leaf. Micrographic analysis of the powder obtained from aerial parts revealed segments of each organ (e.g. stomata, trichomes) and confirmed furthermore the results obtained by the histo-anatomical studies. Sections achieved through vegetative organs reveal typical anatomical structures: a transition to the secondary structure for the root, a typical dicotyledons' structure with bicollateral vascular bundles for the stem, a bifacial structure of the leaf and stem-like structures for the tendrils and petioles, which prove they are metamorphosis of the stem. Anatomical structure of reproductive organs was performed hereby for the first time and revealed a typical anatomical structure for the 3-lodged ovary and a leaf-like structure of the male flower petal. Some of the results obtained confirm existing data from the scientific literature and additional information have been provided, outlining features that were not previously reported, such as SEM analysis of the leaf trichomes and histo-anatomical structure of the reproductive organs.

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Linear and nonlinear regression analysis for heavy metals removal using Agaricus bisporus macrofungus

Cited by 132 publications

References 30 publications

Melanin from a physicochemical point of view

Melanin from a physicochemical point of view

Retention Profile of Zn<sup>2+</sup> and Ni<sup>2+</sup> Ions from Wastewater onto Coffee Husk: Kinetics and Thermodynamic Study

Morphological and Histo-Anatomical Study of <i>Bryonia alba</i> L. (Cucurbitaceae)

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Linear and nonlinear regression analysis for heavy metals removal using Agaricus bisporus macrofungus

Cited by 132 publications

References 30 publications

Melanin from a physicochemical point of view

Melanin from a physicochemical point of view

Retention Profile of Zn&lt;sup&gt;2+&lt;/sup&gt; and Ni&lt;sup&gt;2+&lt;/sup&gt; Ions from Wastewater onto Coffee Husk: Kinetics and Thermodynamic Study

Morphological and Histo-Anatomical Study of <i>Bryonia alba</i> L. (Cucurbitaceae)

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Retention Profile of Zn<sup>2+</sup> and Ni<sup>2+</sup> Ions from Wastewater onto Coffee Husk: Kinetics and Thermodynamic Study