A review on remediation technologies using functionalized Cyclodextrin

Yadav, Monika; Thakore, Sonal; Jadeja, R.N.

doi:10.1007/s11356-021-15887-y

Cited by 23 publications

(12 citation statements)

References 109 publications

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“…Over the past two decades, much work has been done on the use of cyclodextrin polymers for the manufacture of complex emerging substances for environmental applications (Morin-Crini et al 2018;Fenyvesi et al 2019;Cova et al 2021;Yadav et al 2021). These commercial polymers are becoming very popular for the tracking and removal of trace emerging substances.…”

Section: Removal Of Pharmaceuticals Using Cyclodextrin Bead Polymersmentioning

confidence: 99%

“…Cyclodextrins and their polymers have been found useful for various environmental applications including wastewater treatment (Crini and Morcellet 2002;Gruiz et al 2011;Landy et al 2012;Morin-Crini et al 2013;Fenyvesi et al 2019;Cova et al 2021;Yadav et al 2021). The early sorption/biosorption experiments with cyclodextrin bead polymers aimed at the removal of various organic contaminants such as phenols and dyes.…”

Section: Removal Of Pharmaceuticals Using Cyclodextrin Bead Polymersmentioning

confidence: 99%

See 1 more Smart Citation

Removal of emerging contaminants from wastewater using advanced treatments. A review

et al. 2022

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The rise of emerging contaminants in waters challenges the scientific community and water treatment stakeholders to design remediation techniques that are simple, practical, inexpensive, effective, and environmentally friendly. Emerging contaminants include antibiotics, hormones, illicit drugs, endocrine disruptors, cosmetics, personal care products, pesticides, surfactants, industrial products, microplastics, nanoparticles, and nanomaterials. Removing those contaminants is not easy because classical wastewater treatment systems are not designed to handle emerging contaminants, and contaminants often occur as traces in complex organo-mineral mixtures. Here, we review advanced treatments for the removal of emerging contaminants in wastewater, with focus on adsorption-oriented processes using non-conventional adsorbents such as cyclo-dextrin polymers, metal-organic frameworks, molecularly imprinted polymers, chitosan, and nanocellulose. We describe biological-based technologies for the degradation and removal of emerging contaminants. Then, we present advanced oxida-tion processes as the most promising strategies because of their simplicity and efficiency.

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Section: Removal Of Pharmaceuticals Using Cyclodextrin Bead Polymersmentioning

confidence: 99%

Section: Removal Of Pharmaceuticals Using Cyclodextrin Bead Polymersmentioning

confidence: 99%

Removal of emerging contaminants from wastewater using advanced treatments. A review

et al. 2022

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“…This has also been exploited in CD nanosponges, which are crosslinked structures in which many CD units are covalently linked together forming nanochannels [ 3 ]. CD-containing polymers and nanosponges have received considerable attention in recent years [ 4 , 5 , 6 , 7 ].…”

Section: Introductionmentioning

confidence: 99%

L-Arginine-Derived Polyamidoamine Oligomers Bearing at Both Ends β-Cyclodextrin Units as pH-Sensitive Curcumin Carriers

et al. 2022

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The aza-Michael polyaddition of L-arginine and N,N′-methylene-bis-acrylamide gives the biocompatible and easily cell-internalized polyamidoamine ARGO7. By controlled synthesis, two ARGO7 oligomers, namely a trimer and a pentamer, bearing acrylamide terminal units, were obtained as precursors of the β-cyclodextrin-end-terminated oligomers P3 and P5, which have been shown to encapsulate curcumin at both pH 7.4 and 4.5. After lyophilization, P3- and P5-curcumin complexes gave stable water solutions. The apparent solubility of encapsulated curcumin was in the range 20–51 μg mL−1, that is, three orders of magnitude higher than the water solubility of free curcumin (0.011 μg mL−1). The drug release profiles showed induction periods both at pH levels 4.5 and 7.4, suggesting a diffusive release mechanism, as confirmed by kinetic studies. The release rate of curcumin was higher at pH 7.4 than at pH 4.5 and, in both cases, it was higher for the P5 complex. Encapsulated curcumin was more photostable than the free drug. Molecular mechanics and molecular dynamics simulations explain at atomistic level the formation of aggregates due to favorable van der Waals interactions. The drug molecules interact with the external surface of carriers or form inclusion complexes with the β-cyclodextrin cavities. The aggregate stability is higher at pH 4.5.

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“…They are well known to possess a hydrophobic cavity forming inclusion complexes with organic molecules through host-guest interactions, with dimensional selectivity due to the different sizes of their inner cavity (Dodziuk 2006;Szejtli 1998). CD-containing polymers, either linear (Janus et al 1999) or immobilized on solid supports (Allabashi et al 2007;Fan et al 2003;Faraji et al 2011) or crosslinked CD resins (Crini et al 1999;García-Zubiri et al 2007;Romo et al 2008;Wilson et al 2011;Yamasaki et al 2006;Yu et al 2003) were extensively studied as sorbents of organic pollutants with removal efficacy ranging within ample limits (Crini 2005, Yadav et al 2022. Since the late nineties, hyper-crosslinked CDs have commonly been referred to as nanosponges (Ahmed et al 2013;Li and Ma 1999).…”

Section: Introductionmentioning

confidence: 99%

“…Nanosponges are supramolecular cage-like architectures in which the CD units are connected by many short moieties forming nanochannels (Bilensoy 2011;Krabicov et al 2020;Mhlanga et al 2007;Petitjean et al 2021;Rizzi et al 2021;Sherje et al 2017;Taka et al 2017;Trotta et al 2012;Varana et al 2020). Nanosponges are nanoporous by definition and show high inclusion constants with many organic pollutants, including aromatic and chlorinated compounds (Berto et al 2007a and2007b;Gupta et al 2012;Sun et al 2010;Rizzi et al 2021;Yadav et al 2022). Most nanosponges are based on β-CD, the cheapest CD on the market, and only a few examples of α-and γ-CD nanosponges have been reported (Cavalli et al 2010).…”

Section: Introductionmentioning

confidence: 99%

Nanosponges by the oxo-Michael polyaddition of cyclodextrins as sorbents of water pollutants: the o-toluidine case

Pifferi

Ferrari

Manfredi

et al. 2022

Environ Sci Pollut Res

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Hydrophilic cyclodextrin nanosponges were prepared by the oxo-Michael polyaddition in an aqueous solution at pH > 10 of α-, β-, and γ-cyclodextrin with 1,4-bisacryloylpiperazine or 2,2-bisacrylamidoacetic acid. These nanosponges and, for comparison purposes, their precursor cyclodextrins were tested as sorbents of o-toluidine, a carcinogenic wastewater contaminant, by monitoring the depletion of o-toluidine from a 10−4 M (10 ppm) aqueous solutions. To this aim, an innovative analytical procedure was used: The voltammetric peak currents of o-toluidine in linear sweep voltammetry experiments were registered using multi-walled carbon nanotubes-modified glassy carbon electrodes. The experimental sorption curves fitted a mono-exponential kinetic model, and the residual o-toluidine was 0.16 ppm, one order of magnitude lower than those of all other sorbents reported so far. The sorption capacities ranged from 88 to 199 µmol g−1 (10–21.3 mg g−1), equal to or higher than those of the parent cyclodextrins. All nanosponges were completely regenerated by extracting with methanol. After regeneration, the sorption capacity slightly improved, suggesting a rearrangement of the nanosponge network. Overall, it may be reasonably concluded that the cyclodextrin nanosponges reported in this paper warrant potential as o-toluidine exhaustive sorbents.

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A review on remediation technologies using functionalized Cyclodextrin

Cited by 23 publications

References 109 publications

Removal of emerging contaminants from wastewater using advanced treatments. A review

Removal of emerging contaminants from wastewater using advanced treatments. A review

L-Arginine-Derived Polyamidoamine Oligomers Bearing at Both Ends β-Cyclodextrin Units as pH-Sensitive Curcumin Carriers

Nanosponges by the oxo-Michael polyaddition of cyclodextrins as sorbents of water pollutants: the o-toluidine case

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