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Cadmium and lead ions adsorption on magnetite, silica, alumina, and cellulosic materials. Sci Rep 2023; 13:4213. [PMID: 36918589 PMCID: PMC10014989 DOI: 10.1038/s41598-023-30893-5] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/02/2022] [Accepted: 03/02/2023] [Indexed: 03/16/2023] Open
Abstract
The adsorption of small particles on the surface of an adsorbent depends on interfacial dynamics and associated parameters, including the adsorbate reactivity, adsorbent surface activity, and matrix porosity and tortuosity. Herein, the effect of the surfaces of magnetite, silica/alumina, and silica-cellulose matrix on cadmium adsorption is termed using spectroscopic methods. Atomic absorption spectroscopy was used to determine the adsorption of metal ions in the solid-liquid interfaces by the batch method with different pH, metal concentrations, and contact times. Cadmium (II) were well adsorbed on the magnetite-inorganic surface (around 90% adsorption) rather than other types of semi-organic surfaces, silica, silica-alumina and other cellulosic materials (less than 60% adsorption for Cadmium (II) and 80% of Lead (II) ions). The presence of lead (II) changed the cadmium adsorption behaviour, indicating that adsorption-desorption was a physical interaction on different surfaces. Most absorptions are pH-dependent, stable for Cadmium ions and vary for Lead ions. Moreover, the adsorption analysis using Langmuir and Freundlich isotherms showed no significant characteristics of chemical interaction of the ions with the surfaces as indicated by low R2 values (both around 0.5) for magnetite materials higher for cellulose materials of Langmuir and Freundlich isotherms. This study is beneficial for various fields, such as material science and environmental chemistry, which will play an essential role in the future.
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Corsi I, Fiorati A, Grassi G, Bartolozzi I, Daddi T, Melone L, Punta C. Environmentally Sustainable and Ecosafe Polysaccharide-Based Materials for Water Nano-Treatment: An Eco-Design Study. MATERIALS (BASEL, SWITZERLAND) 2018; 11:E1228. [PMID: 30018238 PMCID: PMC6073422 DOI: 10.3390/ma11071228] [Citation(s) in RCA: 24] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 05/28/2018] [Revised: 06/29/2018] [Accepted: 07/12/2018] [Indexed: 12/30/2022]
Abstract
Nanoremediation, which is the use of nanoparticles and nanomaterials for environmental remediation, is widely explored and proposed for preservation of ecosystems that suffer from the increase in human population, pollution, and urbanization. We herein report a critical analysis of nanotechnologies for water remediation by assessing their sustainability in terms of efficient removal of pollutants, appropriate methods for monitoring their effectiveness, and protocols for the evaluation of any potential environmental risks. Our purpose is to furnish fruitful guidelines for sustainable water management, able to promote nanoremediation also at European level. In this context, we describe new nanostructured polysaccharide-based materials obtained from renewable resources as alternative efficient and ecosafe solutions for water nano-treatment. We also provide eco-design indications to improve the sustainability of the production of these materials, based on life-cycle assessment methodology.
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Affiliation(s)
- Ilaria Corsi
- Department of Physical, Earth and Environmental Sciences, University of Siena, Via Mattioli 4, 53100 Siena, Italy.
| | - Andrea Fiorati
- Department of Chemistry, Materials, and Chemical Engineering "G. Natta" Politecnico di Milano, Via Mancinelli 7, 20131 Milano, Italy.
| | - Giacomo Grassi
- Department of Physical, Earth and Environmental Sciences, University of Siena, Via Mattioli 4, 53100 Siena, Italy.
| | - Irene Bartolozzi
- Sant'Anna School of Advanced Studies, Institute of Management, Piazza Martiri della Libertà 33, 56127 Pisa, Italy.
- Ergo S.r.l., c/o Technology Centre, Via Giuntini 25/29⁻int. 29, 56023 Pisa, Italy.
| | - Tiberio Daddi
- Sant'Anna School of Advanced Studies, Institute of Management, Piazza Martiri della Libertà 33, 56127 Pisa, Italy.
| | - Lucio Melone
- Department of Chemistry, Materials, and Chemical Engineering "G. Natta" Politecnico di Milano, Via Mancinelli 7, 20131 Milano, Italy.
| | - Carlo Punta
- Department of Chemistry, Materials, and Chemical Engineering "G. Natta" Politecnico di Milano, Via Mancinelli 7, 20131 Milano, Italy.
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Rossi F, Castiglione F, Salvalaglio M, Ferro M, Moioli M, Mauri E, Masi M, Mele A. On the parallelism between the mechanisms behind chromatography and drug delivery: the role of interactions with a stationary phase. Phys Chem Chem Phys 2018; 19:11518-11528. [PMID: 28425554 DOI: 10.1039/c7cp00832e] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/26/2022]
Abstract
A huge number of studies and work in the drug delivery literature are focused on understanding and modeling transport phenomena, the pivotal point for a good device design. The rationalization of all phenomena involved is fundamental, but several concerns arise leaving many issues unsolved. In order to change the point of view we decided to focus our attention on the parallelisms between two fields that seem to be very far from each other: chromatography and drug release. Taking advantages of the studies conducted by many researchers using chromatographic columns we decided to explain all the phenomena involved in drug delivery considering sodium ibuprofen (IP) molecules as analytes and hydrogel as a stationary phase. In particular, we considered not only diffusion, but also drug-polymer interactions as adsorption on the stationary phase and drug-drug interactions as aggregation of analytes. The hydrogel investigated is a promising formulation made of agarose and carbomer 974p (AC) loaded with IP, a non-steroidal common anti-inflammatory drug. The self-diffusion coefficient of IP in AC formulations was measured by using an innovative method based on a magic angle spinning NMR spectroscopic technique to produce high resolution (liquid-like) spectra. This method (HR-MAS NMR) is used in combination with pulsed field gradient spin echo (PGSE) liquid-state techniques. The model predictions satisfactorily match with the experimental data obtained in water and the gel environment, indicating that the model presented here, despite its simplicity, is able to describe the key phenomena governing the device behavior and could be used to rationalize the experimental activity.
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Affiliation(s)
- Filippo Rossi
- Department of Chemistry, Materials and Chemical Engineering "Giulio Natta", Politecnico di Milano, via Luigi Mancinelli 7, 20131 Milan, Italy.
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Bottari C, Comez L, Corezzi S, D'Amico F, Gessini A, Mele A, Punta C, Melone L, Pugliese A, Masciovecchio C, Rossi B. Correlation between collective and molecular dynamics in pH-responsive cyclodextrin-based hydrogels. Phys Chem Chem Phys 2017; 19:22555-22563. [DOI: 10.1039/c7cp04190j] [Citation(s) in RCA: 10] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
The joint use of UV Raman and Brillouin scattering experiments is employed to explore phase evolutions in pH-responsive polysaccharide hydrogels.
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Affiliation(s)
- C. Bottari
- Elettra – Sincrotrone Trieste
- 34149 Trieste
- Italy
- Department of Physics
- University of Trieste
| | - L. Comez
- IOM-CNR c/o Department of Physics and Geology
- University of Perugia
- 06123 Perugia
- Italy
| | - S. Corezzi
- Department of Physics and Geology
- University of Perugia
- 06123 Perugia
- Italy
| | - F. D'Amico
- Elettra – Sincrotrone Trieste
- 34149 Trieste
- Italy
| | - A. Gessini
- Elettra – Sincrotrone Trieste
- 34149 Trieste
- Italy
| | - A. Mele
- Department of Chemistry
- Materials and Chemical Engineering “G. Natta”
- Politecnico di Milano and INSTM Local Unit
- Milano
- Italy
| | - C. Punta
- Department of Chemistry
- Materials and Chemical Engineering “G. Natta”
- Politecnico di Milano and INSTM Local Unit
- Milano
- Italy
| | - L. Melone
- Department of Chemistry
- Materials and Chemical Engineering “G. Natta”
- Politecnico di Milano and INSTM Local Unit
- Milano
- Italy
| | - A. Pugliese
- Department of Chemistry
- Materials and Chemical Engineering “G. Natta”
- Politecnico di Milano and INSTM Local Unit
- Milano
- Italy
| | | | - B. Rossi
- Elettra – Sincrotrone Trieste
- 34149 Trieste
- Italy
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Rossi B, Venuti V, D'Amico F, Gessini A, Mele A, Punta C, Melone L, Crupi V, Majolino D, Masciovecchio C. Guest-matrix interactions affect the solvation of cyclodextrin-based polymeric hydrogels: a UV Raman scattering study. SOFT MATTER 2016; 12:8861-8868. [PMID: 27734051 DOI: 10.1039/c6sm01647b] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/06/2023]
Abstract
The focus of the present work is to shed light on possible modifications of the molecular properties of polysaccharide hydrogels induced by the establishment of specific non-covalent interactions during the loading of a guest compound inside the gel phase. With this aim, a case study of the encapsulation of caffeine (Caf) inside cyclodextrin-based hydrogels, namely, cyclodextrin nanosponges (NS), is systematically investigated here by using UV Raman scattering experiments. The UV Raman spectra of the hydrogels, analysed as a function of temperature, concentration of the guest molecule loaded in the gel phase and pH, prove particularly informative both on the structural rearrangements of the hydrophobic/hydrophilic groups of the polymeric network and on the breaking/formation of specific guest-matrix interactions. Analysis of the temperature dependence of dynamical parameters, i.e., the dephasing time associated with specific vibrational modes of the polymer backbone, enables the proposal of a molecular picture in which the loading of Caf in NS hydrogels tends to favour access of the water solvent to the more hydrophobic portions of the polymer matrix, which is in turn reflected in a marked increase in the solvation of the whole system. The achievements of this work appear of interest with respect to the design of new possible strategies for controlling the diffusion/release of bioactive molecules inside hydrogel networks, besides corroborating the potential of UV Raman scattering experiments to give new molecular insights into complex phenomena affecting hydrogel phases.
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Affiliation(s)
- B Rossi
- Elettra - Sincrotrone Trieste, Strada Statale 14 km 163.5, Area Science Park, 34149 Trieste, Italy. and Department of Physics, University of Trento and INSTM Local Unit, via Sommarive 14, 38123 Povo, Trento, Italy
| | - V Venuti
- Department of Physics and Earth Sciences, University of Messina and INSTM Local Unit, Viale Ferdinando Stagno D'Alcontres 31, 98166 Messina, Italy
| | - F D'Amico
- Elettra - Sincrotrone Trieste, Strada Statale 14 km 163.5, Area Science Park, 34149 Trieste, Italy.
| | - A Gessini
- Elettra - Sincrotrone Trieste, Strada Statale 14 km 163.5, Area Science Park, 34149 Trieste, Italy.
| | - A Mele
- Department of Chemistry, Materials and Chemical Engineering "G. Natta", Politecnico di Milano and INSTM local unit, Piazza L. da Vinci 32, 20133 Milano, Italy
| | - C Punta
- Department of Chemistry, Materials and Chemical Engineering "G. Natta", Politecnico di Milano and INSTM local unit, Piazza L. da Vinci 32, 20133 Milano, Italy
| | - L Melone
- Department of Chemistry, Materials and Chemical Engineering "G. Natta", Politecnico di Milano and INSTM local unit, Piazza L. da Vinci 32, 20133 Milano, Italy and Università degli Studi e-Campus, Via Isimbardi 10, 22060 Novedrate, Como, Italy
| | - V Crupi
- Department of Physics and Earth Sciences, University of Messina and INSTM Local Unit, Viale Ferdinando Stagno D'Alcontres 31, 98166 Messina, Italy
| | - D Majolino
- Department of Physics and Earth Sciences, University of Messina and INSTM Local Unit, Viale Ferdinando Stagno D'Alcontres 31, 98166 Messina, Italy
| | - C Masciovecchio
- Elettra - Sincrotrone Trieste, Strada Statale 14 km 163.5, Area Science Park, 34149 Trieste, Italy.
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Venuti V, Rossi B, Mele A, Melone L, Punta C, Majolino D, Masciovecchio C, Caldera F, Trotta F. Tuning structural parameters for the optimization of drug delivery performance of cyclodextrin-based nanosponges. Expert Opin Drug Deliv 2016; 14:331-340. [DOI: 10.1080/17425247.2016.1215301] [Citation(s) in RCA: 30] [Impact Index Per Article: 3.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/10/2023]
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