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Lamanna L, Giacoia G, Friuli M, Leone G, Carlucci N, Russo F, Sannino A, Demitri C. Oil-Water Emulsion Flocculation through Chitosan Desolubilization Driven by pH Variation. ACS OMEGA 2023; 8:20708-20713. [PMID: 37332801 PMCID: PMC10268613 DOI: 10.1021/acsomega.3c01257] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 02/24/2023] [Accepted: 04/10/2023] [Indexed: 06/20/2023]
Abstract
Water pollution is a major concern in our modern age. The contamination of water, as a valuable and often limited resource, affects both the environment and human health. Industrial processes such as food, cosmetics, and pharmaceutical production also contribute to this problem. Vegetable oil production, for example, generates a stable oil/water emulsion containing 0.5-5% oil, which presents a difficult waste disposal issue. Conventional treatment methods based on aluminum salts generate hazardous waste, highlighting the need for green and biodegradable coagulant agents. In this study, the efficacy of commercial chitosan, a natural polysaccharide derived from chitin deacetylation, has been evaluated as a coagulation agent for vegetable oil emulsions. The effect of commercial chitosan was assessed in relation to different surfactants (anionic, cationic, and nonpolar) and pH levels. The results demonstrate that chitosan is effective at concentrations as low as 300 ppm and can be reused, providing a cost-effective and sustainable solution for oil removal. The flocculation mechanism relies on the desolubilization of the polymer, which acts as a net to entrap the emulsion, rather than solely relying on electrostatic interactions with the particles. This study highlights the potential of chitosan as a natural and ecofriendly alternative to conventional coagulants for the remediation of oil-contaminated water.
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Affiliation(s)
- Leonardo Lamanna
- Department
of Engineering for Innovation, Campus Ecotekne, University of Salento, Via per Monteroni, 73100 Lecce, Italy
| | | | - Marco Friuli
- Department
of Engineering for Innovation, Campus Ecotekne, University of Salento, Via per Monteroni, 73100 Lecce, Italy
| | | | | | | | - Alessandro Sannino
- Department
of Engineering for Innovation, Campus Ecotekne, University of Salento, Via per Monteroni, 73100 Lecce, Italy
| | - Christian Demitri
- Department
of Engineering for Innovation, Campus Ecotekne, University of Salento, Via per Monteroni, 73100 Lecce, Italy
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Delivery and effectiveness of entomopathogenic fungi for mosquito and tick control: current knowledge and research challenges. Acta Trop 2022; 234:106627. [DOI: 10.1016/j.actatropica.2022.106627] [Citation(s) in RCA: 2] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/08/2022] [Revised: 07/12/2022] [Accepted: 07/28/2022] [Indexed: 02/07/2023]
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Proof of Concept of Biopolymer Based Hydrogels as Biomimetic Oviposition Substrate to Develop Tiger Mosquitoes (Aedes albopictus) Cost-Effective Lure and Kill Ovitraps. Bioengineering (Basel) 2022; 9:bioengineering9070267. [PMID: 35877317 PMCID: PMC9312165 DOI: 10.3390/bioengineering9070267] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/13/2022] [Revised: 06/14/2022] [Accepted: 06/16/2022] [Indexed: 01/03/2023] Open
Abstract
Pest management is looking for green and cost-effective innovative solutions to control tiger mosquitoes and other pests. By using biomimetic principles and biocompatible/biodegradable biopolymers, it could be possible to develop a new approach based on substrates that selectively attract insects by reproducing specific natural environmental conditions and then kill them by hosting and delivering a natural biopesticide or through mechanical action (biomimetic lure and kill approach, BL&K). Such an approach can be theoretically specialized against tiger mosquitoes (BL&K-TM) by designing hydrogels to imitate the natural oviposition site’s conditions to employ them inside a lure and kill ovitraps as a biomimetic oviposition substrate. In this work, the hydrogels have been prepared to prove the concept. The study compares lab/on-field oviposition between standard substrates (absorbing paper/masonite) and a physical and chemically crosslinked hydrogel composition panel. Then the best performing is characterized to evaluate a correlation between the hydrogel’s properties and oviposition. Tests identify a 2-Hydroxyethylcellulose (HEC)-based physical hydrogel preparation as five times more attractive than the control in a lab oviposition assay. When employed on the field in a low-cost cardboard trap, the same substrate is seven times more capturing than a standard masonite ovitrap, with a duration four times longer.
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Friuli M, Cafarchia C, Lia RP, Otranto D, Pombi M, Demitri C. From tissue engineering to mosquitoes: biopolymers as tools for developing a novel biomimetic approach to pest management/vector control. Parasit Vectors 2022; 15:79. [PMID: 35248154 PMCID: PMC8898440 DOI: 10.1186/s13071-022-05193-y] [Citation(s) in RCA: 4] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/20/2021] [Accepted: 02/07/2022] [Indexed: 11/13/2022] Open
Abstract
Background Pest management has been facing the spread of invasive species, insecticide resistance phenomena, and concern for the impact of chemical pesticides on human health and the environment. It has tried to deal with them by developing technically efficient and economically sustainable solutions to complement/replace/improve traditional control methods. The renewal has been mainly directed towards less toxic pesticides or enhancing the precision of their delivery to reduce the volume employed and side effects through lure-and-kill approaches based on semiochemicals attractants. However, one of the main pest management problems is that efficacy depends on the effectiveness of the attractant system, limiting its successful employment to semiochemical stimuli-responsive insects. Biomaterial-based and bioinspired/biomimetic solutions that already guide other disciplines (e.g., medical sciences) in developing precision approaches could be a helpful tool to create attractive new strategies to liberate precision pest management from the need for semiochemical stimuli, simplify their integration with bioinsecticides, and foster the use of still underemployed solutions. Approach proposed We propose an innovative approach, called “biomimetic lure-and-kill”. It exploits biomimetic principles and biocompatible/biodegradable biopolymers (e.g., natural hydrogels) to develop new substrates that selectively attract insects by reproducing specific natural environmental conditions (biomimetic lure) and kill them by hosting and delivering a natural biopesticide or through mechanical action. Biomimetic lure-and-kill-designed substrates point to provide a new attractive system to develop/improve and make more cost-competitive new and conventional devices (e.g. traps). A first example application is proposed using the tiger mosquito Aedes albopictus as a model. Conclusions Biomaterials, particularly in the hydrogel form, can be a useful tool for developing the biomimetic lure-and-kill approach because they can satisfy multiple needs simultaneously (e.g., biomimetic lure, mechanical lethality, biocompatibility, and bioinsecticide growth). Such an approach might be cost-competitive, and with the potential for applicability to several pest species. Moreover, it is already technically feasible, since all the technologies necessary to design and configure materials with specific characteristics are already available on the market. Graphical Abstract ![]()
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Affiliation(s)
- Marco Friuli
- Department of Engineering for Innovation, University of Salento, 73100, Lecce, Italy
| | - Claudia Cafarchia
- Department of Veterinary Medicine, University of Bari, Valenzano, Italy
| | | | - Domenico Otranto
- Department of Veterinary Medicine, University of Bari, Valenzano, Italy
| | - Marco Pombi
- Dipartimento Di Sanità Pubblica E Malattie Infettive, Università Di Roma "Sapienza", Rome, Italy.
| | - Christian Demitri
- Department of Engineering for Innovation, University of Salento, 73100, Lecce, Italy
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Kadry G, Aboelmagd EI, Ibrahim MM. Cellulosic-based hydrogel from biomass material for removal of metals from waste water. JOURNAL OF MACROMOLECULAR SCIENCE PART A-PURE AND APPLIED CHEMISTRY 2019. [DOI: 10.1080/10601325.2019.1640063] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 01/06/2023]
Affiliation(s)
- Ghada Kadry
- Chemical Engineering Department, High Institute of Engineering, Alshrouk Academy, Alshrouk, Egypt
| | - Ehab I. Aboelmagd
- Cellulose and Paper Department, National Research Centre, Dokki, Egypt
| | - Maha M. Ibrahim
- Cellulose and Paper Department, National Research Centre, Dokki, Egypt
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Pettignano A, Charlot A, Fleury E. Carboxyl-functionalized derivatives of carboxymethyl cellulose: towards advanced biomedical applications. POLYM REV 2019. [DOI: 10.1080/15583724.2019.1579226] [Citation(s) in RCA: 20] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/30/2023]
Affiliation(s)
- Asja Pettignano
- Université de Lyon, INSA LYON, Ingénierie des Matériaux Polymères IMP-UMR CNRS 5223 F 69621, Villeurbanne, France
| | - Aurélia Charlot
- Université de Lyon, INSA LYON, Ingénierie des Matériaux Polymères IMP-UMR CNRS 5223 F 69621, Villeurbanne, France
| | - Etienne Fleury
- Université de Lyon, INSA LYON, Ingénierie des Matériaux Polymères IMP-UMR CNRS 5223 F 69621, Villeurbanne, France
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Calcagnile P, Sibillano T, Giannini C, Sannino A, Demitri C. Biodegradable poly(lactic acid)/cellulose-based superabsorbent hydrogel composite material as water and fertilizer reservoir in agricultural applications. J Appl Polym Sci 2019. [DOI: 10.1002/app.47546] [Citation(s) in RCA: 24] [Impact Index Per Article: 4.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/09/2022]
Affiliation(s)
- Paola Calcagnile
- Istituto di Cristallografia-Consiglio Nazionale delle Ricerche (IC-CNR); via G. Amendola 122/O, 70126, Bari Italy
- I.M.A.S.T.; Piazza G. Bovio 22, 80133 Napoli Italy
- Dipartimento di Ingegneria dell'Innovazione; Università del Salento; via Monteroni, Km 1, 73100, Lecce Italy
| | - Teresa Sibillano
- Istituto di Cristallografia-Consiglio Nazionale delle Ricerche (IC-CNR); via G. Amendola 122/O, 70126, Bari Italy
- I.M.A.S.T.; Piazza G. Bovio 22, 80133 Napoli Italy
| | - Cinzia Giannini
- Istituto di Cristallografia-Consiglio Nazionale delle Ricerche (IC-CNR); via G. Amendola 122/O, 70126, Bari Italy
- I.M.A.S.T.; Piazza G. Bovio 22, 80133 Napoli Italy
| | - Alessandro Sannino
- Dipartimento di Ingegneria dell'Innovazione; Università del Salento; via Monteroni, Km 1, 73100, Lecce Italy
| | - Christian Demitri
- Dipartimento di Ingegneria dell'Innovazione; Università del Salento; via Monteroni, Km 1, 73100, Lecce Italy
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Ahmad S, Usman Minhas M, Ahmad M, Sohail M, Abdullah O, Khan KU. Topical hydrogel patches of vinyl monomers containing mupirocin for skin injuries: Synthesis and evaluation. ADVANCES IN POLYMER TECHNOLOGY 2018. [DOI: 10.1002/adv.22124] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 02/03/2023]
Affiliation(s)
- Sarfaraz Ahmad
- Faculty of Pharmacy and Alternative Medicine; The Islamia University of Bahawalpur; Bahawalpur Pakistan
| | - Muhammad Usman Minhas
- Faculty of Pharmacy and Alternative Medicine; The Islamia University of Bahawalpur; Bahawalpur Pakistan
| | - Mahmood Ahmad
- Faculty of Pharmacy and Alternative Medicine; The Islamia University of Bahawalpur; Bahawalpur Pakistan
| | - Muhammad Sohail
- Department of Pharmacy; COMSATS Institute of Information Technology; Abbottabad Pakistan
| | - Orva Abdullah
- Faculty of Pharmacy and Alternative Medicine; The Islamia University of Bahawalpur; Bahawalpur Pakistan
| | - Kifayat Ullah Khan
- Faculty of Pharmacy and Alternative Medicine; The Islamia University of Bahawalpur; Bahawalpur Pakistan
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De Benedictis VM, Soloperto G, Demitri C. Correction of MHS Viscosimetric Constants upon Numerical Simulation of Temperature Induced Degradation Kinetic of Chitosan Solutions. Polymers (Basel) 2016; 8:E210. [PMID: 30979306 PMCID: PMC6432309 DOI: 10.3390/polym8060210] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/10/2016] [Revised: 05/04/2016] [Accepted: 05/10/2016] [Indexed: 12/16/2022] Open
Abstract
The Mark⁻Houwink⁻Sakurada (MHS) equation allows for estimation of rheological properties, if the molecular weight is known along with good understanding of the polymer conformation. The intrinsic viscosity of a polymer solution is related to the polymer molecular weight according to the MHS equation, where the value of the constants is related to the specific solvent and its concentration. However, MHS constants do not account for other characteristics of the polymeric solutions, i.e., Deacetilation Degree (DD) when the solute is chitosan. In this paper, the degradation of chitosan in different acidic environments by thermal treatment is addressed. In particular, two different solutions are investigated (used as solvent acetic or hydrochloric acid) with different concentrations used for the preparation of chitosan solutions. The samples were treated at different temperatures (4, 30, and 80 °C) and time points (3, 6 and 24 h). Rheological, Gel Permeation Chromatography (GPC), Fourier Transform Infrared Spectroscopy (FT-IR), Differential Scanning Calorimetry (DSC) and Thermal Gravimetric Analyses (TGA) were performed in order to assess the degradation rate of the polymer backbones. Measured values of molecular weight have been integrated in the simulation of the batch degradation of chitosan solutions for evaluating MHS coefficients to be compared with their corresponding experimental values. Evaluating the relationship between the different parameters used in the preparation of chitosan solutions (e.g., temperature, time, acid type and concentration), and their contribution to the degradation of chitosan backbone, it is important to have a mathematical frame that could account for phenomena involved in polymer degradation that go beyond the solvent-solute combination. Therefore, the goal of the present work is to propose an integration of MHS coefficients for chitosan solutions that contemplate a deacetylation degree for chitosan systems or a more general substitution degree for polymers in which viscosity depends not only on molecular weight and solvent combinations.
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Affiliation(s)
| | | | - Christian Demitri
- Department of Engineering for Innovation, University of Salento, Via Monteroni, km 1, Lecce 73100, Italy.
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Affiliation(s)
- Hongliang Kang
- Laboratory of Polymer Physics and Chemistry; Beijing National Laboratory of Molecular Sciences; Institute of Chemistry; Chinese Academy of Sciences; Beijing 100190 China
| | - Ruigang Liu
- Laboratory of Polymer Physics and Chemistry; Beijing National Laboratory of Molecular Sciences; Institute of Chemistry; Chinese Academy of Sciences; Beijing 100190 China
| | - Yong Huang
- Laboratory of Polymer Physics and Chemistry; Beijing National Laboratory of Molecular Sciences; Institute of Chemistry; Chinese Academy of Sciences; Beijing 100190 China
- National Research Center of Engineering Plastics; Technical Institute of Physics & Chemistry; Chinese Academy of Sciences; Beijing 100190 China
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Demitri C, Raucci MG, Giuri A, De Benedictis VM, Giugliano D, Calcagnile P, Sannino A, Ambrosio L. Cellulose-based porous scaffold for bone tissue engineering applications: Assessment of hMSC proliferation and differentiation. J Biomed Mater Res A 2015; 104:726-733. [DOI: 10.1002/jbm.a.35611] [Citation(s) in RCA: 28] [Impact Index Per Article: 3.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/10/2015] [Revised: 10/30/2015] [Accepted: 10/30/2015] [Indexed: 11/09/2022]
Affiliation(s)
- Christian Demitri
- Department of Engineering for Innovation; University of Salento; via Monteroni, Km 1 Lecce 73100 Italy
| | - Maria Grazia Raucci
- Institute of Polymers, Composites and Biomaterials (IPCB), National Research Council of Italy Mostra D'oltremare Pad.20; Viale Kennedy 54 Naples 80125 Italy
| | - Antonella Giuri
- Department of Engineering for Innovation; University of Salento; via Monteroni, Km 1 Lecce 73100 Italy
| | | | - Daniela Giugliano
- Institute of Polymers, Composites and Biomaterials (IPCB), National Research Council of Italy Mostra D'oltremare Pad.20; Viale Kennedy 54 Naples 80125 Italy
| | - Paola Calcagnile
- Department of Engineering for Innovation; University of Salento; via Monteroni, Km 1 Lecce 73100 Italy
| | - Alessandro Sannino
- Department of Engineering for Innovation; University of Salento; via Monteroni, Km 1 Lecce 73100 Italy
| | - Luigi Ambrosio
- Institute of Polymers, Composites and Biomaterials (IPCB), National Research Council of Italy Mostra D'oltremare Pad.20; Viale Kennedy 54 Naples 80125 Italy
- Department of Chemical Sciences and Materials Technology; National Research Council of Italy (DSCTM-CNR); P.Le Aldo Moro 7 Rome 00185 Italy
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Optimized synthesis and swelling properties of a pH-sensitive semi-IPN superabsorbent polymer based on sodium alginate-g-poly(acrylic acid-co-acrylamide) and polyvinylpyrrolidone and obtained via microwave irradiation. JOURNAL OF POLYMER RESEARCH 2015. [DOI: 10.1007/s10965-015-0822-3] [Citation(s) in RCA: 34] [Impact Index Per Article: 3.8] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 10/23/2022]
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Ibrahim MM, Abd-Eladl M, Abou-Baker NH. Lignocellulosic biomass for the preparation of cellulose-based hydrogel and its use for optimizing water resources in agriculture. J Appl Polym Sci 2015. [DOI: 10.1002/app.42652] [Citation(s) in RCA: 22] [Impact Index Per Article: 2.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/10/2022]
Affiliation(s)
- Maha M. Ibrahim
- Cellulose and Paper Department; National Research Centre; 33 El-Bohouth St. (former El-Tahrir St.), Dokki, P.O. 12622 Giza Egypt
| | - Mostafa Abd-Eladl
- Soils, Water and Environment Research Institute (SWERI), Agriculture Research Centre (ARC); Giza Egypt
| | - Nesreen H. Abou-Baker
- Soils and Water Use Department; National Research Centre; 33 El-Bohouth St. (former El-Tahrir St.), Dokki, P.O. 12622 Giza Egypt
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Dimida S, Demitri C, De Benedictis VM, Scalera F, Gervaso F, Sannino A. Genipin-cross-linked chitosan-based hydrogels: Reaction kinetics and structure-related characteristics. J Appl Polym Sci 2015. [DOI: 10.1002/app.42256] [Citation(s) in RCA: 69] [Impact Index Per Article: 7.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/09/2022]
Affiliation(s)
- Simona Dimida
- Department of Engineering for Innovation; University of Salento; Via Monteroni km 1 73100 Lecce Italy
| | - Christian Demitri
- Department of Engineering for Innovation; University of Salento; Via Monteroni km 1 73100 Lecce Italy
| | - Vincenzo M. De Benedictis
- Department of Engineering for Innovation; University of Salento; Via Monteroni km 1 73100 Lecce Italy
| | - Francesca Scalera
- Department of Engineering for Innovation; University of Salento; Via Monteroni km 1 73100 Lecce Italy
| | - Francesca Gervaso
- Department of Engineering for Innovation; University of Salento; Via Monteroni km 1 73100 Lecce Italy
| | - Alessandro Sannino
- Department of Engineering for Innovation; University of Salento; Via Monteroni km 1 73100 Lecce Italy
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Raucci MG, Alvarez-Perez MA, Demitri C, Giugliano D, De Benedictis V, Sannino A, Ambrosio L. Effect of citric acid crosslinking cellulose-based hydrogels on osteogenic differentiation. J Biomed Mater Res A 2014; 103:2045-56. [DOI: 10.1002/jbm.a.35343] [Citation(s) in RCA: 81] [Impact Index Per Article: 8.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/03/2014] [Revised: 09/17/2014] [Accepted: 09/24/2014] [Indexed: 01/23/2023]
Affiliation(s)
- M. G. Raucci
- Institute of Polymers, Composites and Biomaterials (IPCB), National Research Council of Italy; Mostra d'Oltremare Pad.20, Viale Kennedy 54 Naples 80125 Italy
| | - M. A. Alvarez-Perez
- Tissue Bioengineering Laboratory; DEPeI, Faculty of Dentistry, National Autonomous University of Mexico; Mexico DF 04510 Mexico
| | - C. Demitri
- Department of Engineering for Innovation; University of Salento; Via Monteroni Lecce 73100 Italy
| | - D. Giugliano
- Institute of Polymers, Composites and Biomaterials (IPCB), National Research Council of Italy; Mostra d'Oltremare Pad.20, Viale Kennedy 54 Naples 80125 Italy
| | - V. De Benedictis
- Department of Engineering for Innovation; University of Salento; Via Monteroni Lecce 73100 Italy
| | - A. Sannino
- Department of Engineering for Innovation; University of Salento; Via Monteroni Lecce 73100 Italy
| | - L. Ambrosio
- Institute of Polymers, Composites and Biomaterials (IPCB), National Research Council of Italy; Mostra d'Oltremare Pad.20, Viale Kennedy 54 Naples 80125 Italy
- Department of Chemicals Science and Materials Technology; National Research Council of Italy (DSCTM-CNR); P.le Aldo Moro 7 Rome 00185 Italy
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Experimental Assessment of the Use of a Novel Superabsorbent polymer (SAP) for the Optimization ofWater Consumption in Agricultural Irrigation Process. WATER 2014. [DOI: 10.3390/w6072056] [Citation(s) in RCA: 65] [Impact Index Per Article: 6.5] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 01/03/2023]
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Demitri C, Giuri A, Raucci MG, Giugliano D, Madaghiele M, Sannino A, Ambrosio L. Preparation and characterization of cellulose-based foams via microwave curing. Interface Focus 2014; 4:20130053. [PMID: 24501679 DOI: 10.1098/rsfs.2013.0053] [Citation(s) in RCA: 32] [Impact Index Per Article: 3.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/11/2023] Open
Abstract
In this work, a mixture of a sodium salt of carboxymethylcellulose (CMCNa) and polyethylene glycol diacrylate (PEGDA700) was used for the preparation of a microporous structure by using the combination of two different procedures. First, physical foaming was induced using Pluronic as a blowing agent, followed by a chemical stabilization. This second step was carried out by means of an azobis(2-methylpropionamidine)dihydrochloride as the thermoinitiator (TI). This reaction was activated by heating the sample homogeneously using a microwave generator. Finally, the influence of different CMCNa and PEGDA700 ratios on the final properties of the foams was investigated. The viscosity, water absorption capacity, elastic modulus and porous structure were evaluated for each sample. In addition, preliminary biological characterization was carried out with the aim to prove the biocompatibility of the resulting material. The foam, including 20% of PEGDA700 in the mixture, demonstrated higher viscosity and stability before thermo-polymerization. In addition, increased water absorption capacity, mechanical resistance and a more uniform microporous structure were obtained for this sample. In particular, foam with 3% of CMCNa shows a hierarchical structure with open pores of different sizes. This morphology increased the properties of the foams. The full set of samples demonstrated an excellent biocompatibility profile with a good cell proliferation rate of more than 7 days.
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Affiliation(s)
- Christian Demitri
- Department of Engineering for Innovation , University of Salento , Campus Ecotekne, Via Monteroni, Lecce 73100 , Italy
| | - Antonella Giuri
- Department of Engineering for Innovation , University of Salento , Campus Ecotekne, Via Monteroni, Lecce 73100 , Italy
| | - Maria Grazia Raucci
- Institute of Composite and Biomedical Materials, National Research Council of Italy (IMCB-CNR) , Mostra d'Oltremare Padiglione 20, via J.F. Kennedy 54, Naples 80125 , Italy
| | - Daniela Giugliano
- Institute of Composite and Biomedical Materials, National Research Council of Italy (IMCB-CNR) , Mostra d'Oltremare Padiglione 20, via J.F. Kennedy 54, Naples 80125 , Italy
| | - Marta Madaghiele
- Department of Engineering for Innovation , University of Salento , Campus Ecotekne, Via Monteroni, Lecce 73100 , Italy
| | - Alessandro Sannino
- Department of Engineering for Innovation , University of Salento , Campus Ecotekne, Via Monteroni, Lecce 73100 , Italy
| | - Luigi Ambrosio
- Department of Chemicals Science and Materials Technology , National Research Council of Italy (DSCTM-CNR) , Piazzale Aldo Moro 7, Rome 00185 , Italy
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Fernandes EM, Pires RA, Mano JF, Reis RL. Bionanocomposites from lignocellulosic resources: Properties, applications and future trends for their use in the biomedical field. Prog Polym Sci 2013. [DOI: 10.1016/j.progpolymsci.2013.05.013] [Citation(s) in RCA: 109] [Impact Index Per Article: 9.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/18/2022]
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Proliferation and osteoblastic differentiation of hMSCs on cellulose-based hydrogels. J Appl Biomater Funct Mater 2013; 10:302-7. [PMID: 23242882 DOI: 10.5301/jabfm.2012.10366] [Citation(s) in RCA: 19] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Accepted: 10/23/2012] [Indexed: 11/20/2022] Open
Abstract
PURPOSE The aim of this project was to study the proliferation and differentiation of human Mesenchymal Stem Cells (hMSCs) onto a cellulose-based hydrogel for bone tissue engineering. METHODS Modified-cellulose hydrogel was prepared via double esterification crosslinking using citric acid. The response of human Mesenchymal Stem Cells (hMSCs) in terms of cell proliferation and differentiation into osteoblastic phenotype was evaluated by using Alamar blue assay and Alkaline phosphatase activity. RESULTS The results showed that CMCNa and CMCNa_CA have no negative effect on hMSC, adhesion and proliferation. Moreover, the increase of the ALP expression for CMCNa_CA confirms the ability of the hydrogels to support the osteoblastic differentiation. CONCLUSIONS The cellulose-based hydrogels have a potential application as filler in bone tissue regeneration.
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Potential of Cellulose-Based Superabsorbent Hydrogels as Water Reservoir in Agriculture. INT J POLYM SCI 2013. [DOI: 10.1155/2013/435073] [Citation(s) in RCA: 136] [Impact Index Per Article: 12.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/17/2022] Open
Abstract
The present work deals with the development of a biodegradable superabsorbent hydrogel, based on cellulose derivatives, for the optimization of water resources in agriculture, horticulture and, more in general, for instilling a wiser and savvier approach to water consumption. The sorption capability of the proposed hydrogel was firstly assessed, with specific regard to two variables that might play a key role in the soil environment, that is, ionic strength and pH. Moreover, a preliminary evaluation of the hydrogel potential as water reservoir in agriculture was performed by using the hydrogel in experimental greenhouses, for the cultivation of tomatoes. The soil-water retention curve, in the presence of different hydrogel amounts, was also analysed. The preliminary results showed that the material allowed an efficient storage and sustained release of water to the soil and the plant roots. Although further investigations should be performed to completely characterize the interaction between the hydrogel and the soil, such findings suggest that the envisaged use of the hydrogel on a large scale might have a revolutionary impact on the optimization of water resources management in agriculture.
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