Grafting of aminated oligogalacturonans onto Douglas fir barks. A new route for the enhancement of their lead (II) binding capacities

Astier, Cédric; Chaleix, Vincent; Faugeron, Céline; Ropartz, David; Gloaguen, Vincent; Krausz, Pierre

doi:10.1016/j.jhazmat.2010.06.027

Cited by 9 publications

(4 citation statements)

References 27 publications

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“…Grafting of each aminated oligo-carrageenan was performed by reductive amination according to the procedure described in the experimental section. With value of 4.75 (Table 2), the degree of substitution is small but consistent with our previous data (Astier et al 2010). FT-IR spectra of dialdehyde and functionalized barks are presented in Fig.…”

Section: Bark Derivatization and Characterizationsupporting

confidence: 89%

“…The procedure was adapted from our previous work (Astier et al 2010). The first chemical step consisted of aldehyde group generation.…”

Section: Bark Grafting Periodic Oxidation and Reductive Amination Of ...mentioning

confidence: 99%

“…Metal sequestration during biosorption follows complex mechanisms that mainly involve ionic interactions. Recently we demonstrated that the lead binding capacities of crude barks could be successfully increased through the covalent grafting of aminated oligogalacturonans (Astier et al 2010).…”

Section: Introductionmentioning

confidence: 99%

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Biosorption of lead(II) on modified barks explained by the hard and soft acids and bases (HSAB) theory

Astier

Chaleix

Faugeron

et al. 2012

BioRes

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Chemical modification of Douglas fir bark and its subsequent utilization in adsorption of Pb(II) from aqueous solutions was investigated. The polysaccharidic moiety of barks was functionalized by periodate oxidation and derivatized after reductive amination in the presence of aminated oligo-carrageenans. Pb(II) adsorption isotherms of derivatized barks were then determined and compared to the capabilities of crude barks using the Langmuir adsorption model in terms of affinity (b) and maximum binding capacity (qmax). Compared to crude barks, the derivatization of barks by oligo-carrageenans resulted in significant enhancements of qmax and b by up to x8 and x4, respectively. The results obtained from crude barks on chemically grafted carboxylic and sulfated barks are discussed and interpreted through the Hard and Soft Acids and Bases (HSAB) theory.

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Section: Bark Derivatization and Characterizationsupporting

confidence: 89%

“…The procedure was adapted from our previous work (Astier et al 2010). The first chemical step consisted of aldehyde group generation.…”

Section: Bark Grafting Periodic Oxidation and Reductive Amination Of ...mentioning

confidence: 99%

See 1 more Smart Citation

Biosorption of lead(II) on modified barks explained by the hard and soft acids and bases (HSAB) theory

Astier

Chaleix

Faugeron

et al. 2012

BioRes

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“…groups by hydrogen ion substitution or electron pair donation 28 .Various unconventional, cost-effective adsorbents have been developed which are derived from natural materials and have high adsorption capacities. Adsorption has been improved by increasing the number of accessible carboxylate groups 29, 30, 31 via covalent grafting of aminated oligogalacturonans 32 . However, the practicality of these methods is limited by the use of reactive toxic substances and/or organic solvents, costly equipment, and long protocols 33 .…”

mentioning

confidence: 99%

Lignocellulosic fraction of the pericarps of the acorns of Quercus suber and Quercus ilex: isolation, characterization, and biosorption studies in the removal of copper from aqueous solutions

Mébarki

Hachem

Harche

2019

Polish Journal of Chemical Technology

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Pericarps of Algerian Quercus ilex (Q. ilex) and Quercus suber (Q. suber) were used as copper adsorbents in artificially contaminated solutions. Exposing accessible lignocellulosic binding sites enhanced adsorption. The lignocellulosic fractions of Q. suber and Q. ilex (36.47±9.1 and 47.66±9.3, respectively) were characterized by FTIR before and after adsorption. The aim was to identify the functional groups adsorbing Cu(II). SEM/EDX determined lignocellulose surface morphology and composition. The amount of adsorbent-bound Cu(II) increased with initial [Cu(II)]. Cu(II) adsorption range was 23.59–48.06 mg.g−1 for Q. Suber and 22.56–38.19 mg.g−1 for Q. ilex when [Cu(II)] was 100–500 mg.L−1. Adsorption isotherms and Langmuir and Freundlich models of the Q. suber and Q. ilex lignocellulosic fractions indicated natural Cu(II)adsorption capacities (Qmax) of 53.76 mg.g−1 and 36.06 mg.g−1 and KF of 5.9 mg.g−1 and 7.43 mg.g−1, respectively.

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Analysis of carbohydrates and glycoconjugates by matrix‐assisted laser desorption/ionization mass spectrometry: An update for 2009–2010

Harvey

2014

Mass Spectrometry Reviews

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This review is the sixth update of the original article published in 1999 on the application of MALDI mass spectrometry to the analysis of carbohydrates and glycoconjugates and brings coverage of the literature to the end of 2010. General aspects such as theory of the MALDI process, matrices, derivatization, MALDI imaging, arrays and fragmentation are covered in the first part of the review and applications to various structural typed constitutes the remainder. The main groups of compound that are discussed in this section are oligo and polysaccharides, glycoproteins, glycolipids, glycosides and biopharmaceuticals. Many of these applications are presented in tabular form. Also discussed are medical and industrial applications of the technique, studies of enzyme reactions and applications to chemical synthesis.

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Grafting of aminated oligogalacturonans onto Douglas fir barks. A new route for the enhancement of their lead (II) binding capacities

Cited by 9 publications

References 27 publications

Biosorption of lead(II) on modified barks explained by the hard and soft acids and bases (HSAB) theory

Biosorption of lead(II) on modified barks explained by the hard and soft acids and bases (HSAB) theory

Lignocellulosic fraction of the pericarps of the acorns of Quercus suber and Quercus ilex: isolation, characterization, and biosorption studies in the removal of copper from aqueous solutions

Analysis of carbohydrates and glycoconjugates by matrix‐assisted laser desorption/ionization mass spectrometry: An update for 2009–2010

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