Adsorption of soluble Pb(II) by a photocrosslinked polysaccharide hybrid: A swelling-adsorption correlation study

Pal, Abhijit; Majumder, K.; Sengupta, Samarjit; Das, T. K.; Bandyopadhyay, Abhijit

doi:10.1016/j.carbpol.2017.08.122

Cited by 25 publications

(5 citation statements)

References 53 publications

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“…Numerous investigations have disclosed the toxic action of lead ensuing in a diversity of pathological and clinical outcomes in virtually all of the organs, including, hepatic and renal injury, inflammation and immunomodulation, often accompanied by anemia, high blood pressure, and heart diseases ( 29 – 32 ). At present, chelating drugs are the most common therapeutic agents utilized to eliminate heavy metals and restore metabolic imbalance, albeit with undesirable side effects ( 33 , 34 ). Metal chelators exhibit shortcomings including neurotoxicity caused by redistribution of heavy metals from tissues to the brain, loss of important metals including copper, calcium and zinc due to non-specific chelation and toxicity to the liver.…”

Section: Discussionmentioning

confidence: 99%

A novel mushroom (Auricularia polytricha) glycoprotein protects against lead-induced hepatoxicity, promotes lead adsorption, inhibits organ accumulation of lead, upregulates detoxifying proteins, and enhances immunoregulation in rats

Zhao

Gao²,

Wang

et al. 2023

Front. Nutr.

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IntroductionLead is a ubiquitous environmental and industrial pollutant. Its nonbiodegradable toxicity induces a plethora of human diseases. A novel bioactive glycoprotein containing 1.15% carbohydrate, with the ability of adsorbing lead and effecting detoxification, has been purified from Auricularia polytricha and designated as APL. Besides, its mechanisms related to regulation of hepatic metabolic derangements at the proteome level were analyzed in this study.MethodsChromatographic techniques were utilized to purify APL in the current study. For investigating the protective effects of APL, Sprague-Dawley rats were given daily intraperitoneal injections of lead acetate for establishment of an animal model, and different dosages of APL were gastrically irrigated for study of protection from lead detoxification. Liver samples were prepared for proteomic analyses to explore the detoxification mechanisms.Results and discussionThe detoxifying glycoprotein APL displayed unique molecular properties with molecular weight of 252-kDa, was isolated from fruiting bodies of the edible fungus A. polytricha. The serum concentrations of lead and the liver function biomarkers aspartate and alanine aminotransferases were significantly (p<0.05) improved after APL treatment, as well as following treatment with the positive control EDTA (300 mg/kg body weight). Likewise, results on lead residue showed that the clearance ratios of the liver and kidneys were respectively 44.5% and 18.1% at the dosage of APL 160 mg/kg, which was even better than the corresponding data for EDTA. Proteomics disclosed that 351 proteins were differentially expressed following lead exposure and the expression levels of 41 proteins enriched in pathways mainly involved in cell detoxification and immune regulation were normalized after treatment with APL-H. The results signify that APL ameliorates lead-induced hepatic injury by positive regulation of immune processing, and suggest that APL can be applied as a therapeutic intervention of lead poisoning in clinical practice. This report represents the first demonstration of the protective action of a novel mushroom protein on lead-elicited hepatic toxicity.

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Section: Discussionmentioning

confidence: 99%

A novel mushroom (Auricularia polytricha) glycoprotein protects against lead-induced hepatoxicity, promotes lead adsorption, inhibits organ accumulation of lead, upregulates detoxifying proteins, and enhances immunoregulation in rats

Zhao

Gao²,

Wang

et al. 2023

Front. Nutr.

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“…The addition of surfactants intimately mixed the gums (hydrophilic) and boron phosphide (hydrophobic) and increased the likelihood of crosslinking during the process. The radicals were then crosslinked to form the nanocomposite (Pal et al 2017 ).…”

Section: Adsorption Of Metal Ions From Watermentioning

confidence: 99%

Gum-based nanocomposites for the removal of metals and dyes from waste water

Usman,

Taj,

Carabineiro

2023

Environ Sci Pollut Res

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The importance of water for all living organisms is unquestionable and protecting its sources is crucial. In order to reduce water contaminants, like toxic metals and organic dyes, researchers are exploring different techniques, such as adsorption, photocatalytic degradation, and electrolysis. Novel materials are also being sought. In particular, biopolymers like guar gum and xanthan gum, that are eco-friendly, non-toxic, reusable, abundant and cost-effective, have enormous potential. Gum-based nanocomposites can be prepared and used for removing heavy metals and colored dyes by adsorption and degradation, respectively. This review explains the significance of gum-based nanomaterials in waste water treatment, including preparative steps, characterization techniques, kinetics models, and the degradation and adsorption mechanisms involved.

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“…The maximum adsorption capacity of 537 mg·g −1 for lead(II) was calculated using the Langmuir isotherm model, highlighting the excellent adsorption efficiency of the synthesized nanocomposite for lead removal from the complex industrial wastewaters. Promising results in lead(II) removal have been achieved also by cross-linking the xanthan and guar gums, where the metal cation was predominantly attached to carboxylic groups [ 102 ]. Their availability in this hybrid polymer was regulated by the swelling of the polymer, which instigated and facilitated the lead binding inside the network sites.…”

Section: Immobilization Of Heavy Metals By Native and Modified Xantha...mentioning

confidence: 99%

Prospects of Biogenic Xanthan and Gellan in Removal of Heavy Metals from Contaminated Waters

et al. 2022

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Biosorption is considered an effective technique for the treatment of heavy-metal-bearing wastewaters. In recent years, various biogenic products, including native and functionalized biopolymers, have been successfully employed in technologies aiming for the environmentally sustainable immobilization and removal of heavy metals at contaminated sites, including two commercially available heteropolysaccharides—xanthan and gellan. As biodegradable and non-toxic fermentation products, xanthan and gellan have been successfully tested in various remediation techniques. Here, to highlight their prospects as green adsorbents for water decontamination, we have reviewed their biosynthesis machinery and chemical properties that are linked to their sorptive interactions, as well as their actual performance in the remediation of heavy metal contaminated waters. Their sorptive performance in native and modified forms is promising; thus, both xanthan and gellan are emerging as new green-based materials for the cost-effective and efficient remediation of heavy metal-contaminated waters.

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Adsorption of soluble Pb(II) by a photocrosslinked polysaccharide hybrid: A swelling-adsorption correlation study

Cited by 25 publications

References 53 publications

A novel mushroom (Auricularia polytricha) glycoprotein protects against lead-induced hepatoxicity, promotes lead adsorption, inhibits organ accumulation of lead, upregulates detoxifying proteins, and enhances immunoregulation in rats

A novel mushroom (Auricularia polytricha) glycoprotein protects against lead-induced hepatoxicity, promotes lead adsorption, inhibits organ accumulation of lead, upregulates detoxifying proteins, and enhances immunoregulation in rats

Gum-based nanocomposites for the removal of metals and dyes from waste water

Prospects of Biogenic Xanthan and Gellan in Removal of Heavy Metals from Contaminated Waters

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