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Poly(Lactic-co-glycolic) Acid and Phospholipids Hybrid Nanoparticles for Regeneration of Biological Tissue. CHEMENGINEERING 2022. [DOI: 10.3390/chemengineering6010010] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 02/04/2023]
Abstract
In tissue regeneration, biomaterials facilitate biological processes. However, a treatment with biomaterials will be successful only if supported by simple and inexpensive technologies which stimulate the regenerative processes. The present study focused on the possibility of creating formulations from which then to obtain suitable materials for the regeneration of heart tissue. The experimental procedure for precipitation of polymer- nanoparticles was modified ad hoc to obtain hybrid poly lactic-co-glycolic acid (PLGA)-phospholipid nanoparticles. The properties of the formulations produced by direct PLGA-phospholipid co-precipitation depend on the mass ratio R= polymer mass/phospholipid mass. The value of this parameter allows us to modulate the properties of the formulations. Formulations with R = 1.5, 2.3, 4, and 9 were prepared, and for each of them the particle-size distribution obtained by dynamic light scattering was studied. All samples showed that the hydrodynamic diameter decreases with increasing R value. This behavior is interpreted as polymer coil shrinkage due to contacts with the non-solvent. The spreadability and ease of obtaining thin sheets were evaluated for each formulation. The formulation with R=4 resulted in a homogeneous and easily workable material in thin sheets.
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Sacco P, Lipari S, Cok M, Colella M, Marsich E, Lopez F, Donati I. Insights into Mechanical Behavior and Biological Properties of Chia Seed Mucilage Hydrogels. Gels 2021; 7:47. [PMID: 33923998 PMCID: PMC8167777 DOI: 10.3390/gels7020047] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/24/2021] [Revised: 04/06/2021] [Accepted: 04/15/2021] [Indexed: 12/26/2022] Open
Abstract
In this contribution we report insights on the rheological properties of chia (Salvia hispanica) seed mucilage hydrogels. Creep experiments performed in steady state conditions allowed calculation of Newtonian viscosities for chia hydrogels with different polymer concentration, pointing at inter-chain interactions as the main responsible for the different behavior toward network slipping under constant stress. A combination of oscillatory frequency and stress sweep tests highlighted a moderate effect of temperature in influencing hydrogel mechanics. The latter results prompted us to investigate potential biological functions for this set of biomaterials. Lactate Dehydrogenase assay proved the lack of cytotoxicity of chia suspensions toward Human Mesenchymal Stem Cells from adipose tissue used here as a cell model. Differentiation experiments were finally undertaken to verify the influence of chia samples on osteo-induction triggered by chemical differentiation factors. Alkaline Phosphatase enzyme activity assay and Alizarin red staining demonstrated that chia mucilage did not alter in vitro stem cell differentiation. Collectively, this set of experiments revealed an almost inert role associated with chia suspensions, indicating a possible application of chia-based networks as scaffold models to study osteogenesis in vitro.
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Affiliation(s)
- Pasquale Sacco
- Department of Life Sciences, University of Trieste, Via Licio Giorgieri 5, 34127 Trieste, Italy; (S.L.); (M.C.); (I.D.)
| | - Sara Lipari
- Department of Life Sciences, University of Trieste, Via Licio Giorgieri 5, 34127 Trieste, Italy; (S.L.); (M.C.); (I.D.)
| | - Michela Cok
- Department of Life Sciences, University of Trieste, Via Licio Giorgieri 5, 34127 Trieste, Italy; (S.L.); (M.C.); (I.D.)
| | - Matilde Colella
- Department of Biosciences, Biotechnology and Biopharmaceutics, University of Bari “Aldo Moro”, Via Orabona, 4, 70126 Bari, Italy;
| | - Eleonora Marsich
- Department of Medicine, Surgery and Health Sciences, University of Trieste, Piazza dell’Ospitale 1, 34129 Trieste, Italy;
| | - Francesco Lopez
- Department of Agricultural, Environmental and Food Sciences (DiAAA) and Center for Colloid and Surface Science (CSGI), University of Molise, Via De Sanctis, 86100 Campobasso, Italy;
| | - Ivan Donati
- Department of Life Sciences, University of Trieste, Via Licio Giorgieri 5, 34127 Trieste, Italy; (S.L.); (M.C.); (I.D.)
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Cinelli G, Cuomo F, Ambrosone L, Venditti F, Lopez F. Determination of bisphenol A in red wine using a double vortex-ultrasound-assisted microextraction assay: Role of the interfacial properties. Biotechnol Prog 2019; 35:e2780. [PMID: 30697978 DOI: 10.1002/btpr.2780] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/02/2018] [Revised: 01/24/2019] [Accepted: 01/28/2019] [Indexed: 01/03/2023]
Abstract
Bisphenol A (BPA) is a synthetic compound broadly used in medical devices as well as in packaging of food and drinks. Recently, BPA toxicity has become of concern to environmental public health. Red wine that is susceptible to BPA contamination is an alcoholic beverage made from yeast fermentation of grapes in the presence of grape skins so as to extract phenolic compounds. The aim of this study was to validate an efficient, low cost, and time-saving method for BPA determination in red-wine beverage. To this end, a rapid and simple microextraction method is here proposed consisting in liquid-liquid separation assisted by a vortex-ultrasound-vortex procedure combined with gas chromatographic analysis (GC-Fid or GC-IT/MS). By means of a comparative study between real red-wine matrix and synthetic hydroalcoholic solutions, different parameters related to the microextraction steps were investigated. The minimal amount of extraction solvent for a given volume of sample was calculated for both the systems. It was demonstrated that for red-wine matrix, the extent of phase separation is strongly affected by some wine constituents and that separation can be tuned by varying the amount of the extraction solvent. This double vortex-ultrasound-assisted method achieved high recovery of BPA and enrichment factor compared with other microextraction methods.
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Affiliation(s)
- Giuseppe Cinelli
- Dipartimento di Agricoltura, Ambiente Alimenti (DIAAA) and Consorzio Interuniversitario per lo Sviluppo dei Sistemi a Grande Interfase (CSGI), Università degli studi del Molise, Campobasso, Italy
| | - Francesca Cuomo
- Dipartimento di Agricoltura, Ambiente Alimenti (DIAAA) and Consorzio Interuniversitario per lo Sviluppo dei Sistemi a Grande Interfase (CSGI), Università degli studi del Molise, Campobasso, Italy
| | - Luigi Ambrosone
- Dipartimento di Medicina e Scienze della Salute and Consorzio Interuniversitario per lo Sviluppo dei Sistemi a Grande Interfase (CSGI), Università degli studi del Molise, Campobasso, Italy
| | - Francesco Venditti
- Dipartimento di Agricoltura, Ambiente Alimenti (DIAAA) and Consorzio Interuniversitario per lo Sviluppo dei Sistemi a Grande Interfase (CSGI), Università degli studi del Molise, Campobasso, Italy
| | - Francesco Lopez
- Dipartimento di Agricoltura, Ambiente Alimenti (DIAAA) and Consorzio Interuniversitario per lo Sviluppo dei Sistemi a Grande Interfase (CSGI), Università degli studi del Molise, Campobasso, Italy
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Donmez R, Yati I, Tezcan Demirel Y, Bulbul Sonmez H. Poly(ethylene glycol)-based amphiphilic networks and their swelling properties. ADVANCES IN POLYMER TECHNOLOGY 2019. [DOI: 10.1002/adv.22170] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/12/2022]
Affiliation(s)
- Rahim Donmez
- Department of Chemistry; Gebze Technical University; Gebze, Kocaeli Turkey
| | - Ilker Yati
- Department of Chemistry; Gebze Technical University; Gebze, Kocaeli Turkey
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Gopalakannan V, Viswanathan N. Development of Nano-Hydroxyapatite Embedded Gelatin Biocomposite for Effective Chromium(VI) Removal. Ind Eng Chem Res 2015. [DOI: 10.1021/acs.iecr.5b01224] [Citation(s) in RCA: 50] [Impact Index Per Article: 5.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
Affiliation(s)
- Venkatrajan Gopalakannan
- Department
of Chemistry, Velammal College of Engineering and Technology, Madurai-625 009, Tamilnadu, India
| | - Natrayasamy Viswanathan
- Department of
Chemistry, Anna University, University College of Engineering-Dindigul, Dindigul-624 622, Tamilnadu, India
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Venditti F, Cuomo F, Ceglie A, Avino P, Russo MV, Lopez F. Visible light caffeic acid degradation by carbon-doped titanium dioxide. LANGMUIR : THE ACS JOURNAL OF SURFACES AND COLLOIDS 2015; 31:3627-3634. [PMID: 25763603 DOI: 10.1021/acs.langmuir.5b00560] [Citation(s) in RCA: 21] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/04/2023]
Abstract
The removal of the phenolic compound, caffeic acid, by photodegradation has been investigated using carbon-doped titanium dioxide particles as a photocatalyst under visible light. UV-vis absorption spectroscopy and gas chromatography-ion trap mass spectrometry analyses revealed a substrate concentration dependence of the removal of caffeic acid from a water solution. The k2 and t(0.5) parameters of each reaction were calculated by fitting kinetics data to a second-order kinetic adsorption model. To evaluate the photodegradation event, the effect of the adsorption process on the whole degradation was also monitored in the absence of light. Adsorption isotherm studies supported by ζ potential and scanning electron microscopy data demonstrated the pivotal role of the absorption mechanism. It was found that the whole photodegradation process is governed by a synergic mechanism in which adsorption and photodegradation are involved. This study, centered on the removal of caffeic acid from aqueous solutions, highlights the potential application of this technology for the elimination of phenolic compounds from olive mill wastewater, a fundamental goal in both the agronomical and environmental fields.
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Affiliation(s)
- Francesco Venditti
- †Consorzio per lo Sviluppo Industriale della Valle del Biferno (COSIB), 86075 Termoli, Italy
| | - Francesca Cuomo
- ‡Department of Agricultural, Environmental and Food Sciences (DiAAA) and Center for Colloid and Surface Science (CSGI), Università degli Studi del Molise, Via De Sanctis, I-86100 Campobasso, Italy
| | - Andrea Ceglie
- ‡Department of Agricultural, Environmental and Food Sciences (DiAAA) and Center for Colloid and Surface Science (CSGI), Università degli Studi del Molise, Via De Sanctis, I-86100 Campobasso, Italy
| | - Pasquale Avino
- §Air Chemical Laboratory, DIPIA, INAIL Settore Ricerca, Via IV Novembre 144, 00187 Rome, Italy
| | - Mario Vincenzo Russo
- ‡Department of Agricultural, Environmental and Food Sciences (DiAAA) and Center for Colloid and Surface Science (CSGI), Università degli Studi del Molise, Via De Sanctis, I-86100 Campobasso, Italy
| | - Francesco Lopez
- ‡Department of Agricultural, Environmental and Food Sciences (DiAAA) and Center for Colloid and Surface Science (CSGI), Università degli Studi del Molise, Via De Sanctis, I-86100 Campobasso, Italy
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Cuomo F, Venditti F, Ceglie A, De Leonardis A, Macciola V, Lopez F. Cleaning of olive mill wastewaters by visible light activated carbon doped titanium dioxide. RSC Adv 2015. [DOI: 10.1039/c5ra16860k] [Citation(s) in RCA: 12] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022] Open
Abstract
Visible light activated carbon doped titanium dioxide fully works in the removal of total phenols from olive mill wastewater.
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Affiliation(s)
- Francesca Cuomo
- Department of Agricultural, Environmental and Food Sciences and Center for Colloid and Surface Science (CSGI)
- Università degli Studi del Molise
- I-86100 Campobasso
- Italy
| | - Francesco Venditti
- Consorzio per lo Sviluppo Industriale della Valle del Biferno (COSIB)
- Italy
| | - Andrea Ceglie
- Department of Agricultural, Environmental and Food Sciences and Center for Colloid and Surface Science (CSGI)
- Università degli Studi del Molise
- I-86100 Campobasso
- Italy
| | - Antonella De Leonardis
- Department of Agricultural, Environmental and Food Sciences and Center for Colloid and Surface Science (CSGI)
- Università degli Studi del Molise
- I-86100 Campobasso
- Italy
| | - Vincenzo Macciola
- Department of Agricultural, Environmental and Food Sciences and Center for Colloid and Surface Science (CSGI)
- Università degli Studi del Molise
- I-86100 Campobasso
- Italy
| | - Francesco Lopez
- Department of Agricultural, Environmental and Food Sciences and Center for Colloid and Surface Science (CSGI)
- Università degli Studi del Molise
- I-86100 Campobasso
- Italy
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De Leonardis A, Macciola V, Cuomo F, Lopez F. Evidence of oleuropein degradation by olive leaf protein extract. Food Chem 2014; 175:568-74. [PMID: 25577121 DOI: 10.1016/j.foodchem.2014.12.016] [Citation(s) in RCA: 25] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/11/2014] [Revised: 12/05/2014] [Accepted: 12/07/2014] [Indexed: 11/26/2022]
Abstract
The enzymatic activity of raw protein olive leaf extract has been investigated in vivo, on olive leaf homogenate and, in vitro with pure oleuropein and other phenolic substrates. At least two types of enzymes were found to be involved in the degradation of endogenous oleuropein in olive leaves. As for the in vitro experiments, the presence of active polyphenoloxidase and β-glucosidase was determined by HPLC and UV-Visible spectroscopy. Interestingly, both the enzymatic activities were found to change during the storage of olive leaves. Specifically, the protein extracts obtained from fresh leaves showed the presence of both the enzymatic activities, because oleuropein depletion occurred simultaneously with the formation of the oleuropein aglycon, 3,4-DHPEA-EA. In comparison leaves subjected to the drying process showed a polyphenoloxidase activity leading exclusively to the formation of oxidation products responsible for the typical brown coloration of the reaction solution.
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Affiliation(s)
- Antonella De Leonardis
- Department of Agricultural, Environmental and Food Sciences (DIAAA), University of Molise, Via De Sanctis, I-86100 Campobasso, Italy.
| | - Vincenzo Macciola
- Department of Agricultural, Environmental and Food Sciences (DIAAA), University of Molise, Via De Sanctis, I-86100 Campobasso, Italy
| | - Francesca Cuomo
- Department of Agricultural, Environmental and Food Sciences (DIAAA), University of Molise, Via De Sanctis, I-86100 Campobasso, Italy
| | - Francesco Lopez
- Department of Agricultural, Environmental and Food Sciences (DIAAA), University of Molise, Via De Sanctis, I-86100 Campobasso, Italy
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The role of microemulsions in lipase-catalyzed hydrolysis reactions. Biotechnol Prog 2014; 30:360-6. [DOI: 10.1002/btpr.1892] [Citation(s) in RCA: 19] [Impact Index Per Article: 1.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/15/2014] [Revised: 02/21/2014] [Indexed: 11/07/2022]
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Dave R, Madamwar D. Preparations for the use ofCandida rugosalipase in non-conventional solvents. BIOCATAL BIOTRANSFOR 2010. [DOI: 10.3109/10242422.2010.489152] [Citation(s) in RCA: 9] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/13/2022]
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Abstract
This article reviews known approaches to generating viscoelastic and gel-like surfactant systems focusing on how the formation of these viscous phases are often sensitive to a variety of chemical and physio-chemical factors. An understanding of this sensitivity is essential for generating high viscosity surfactant phases in more challenging solvent environments. The initial focus is on the generation of worm-like and reverse worm-like micelles. In addition, other approaches for using surfactant self-assembly for viscosity enhancement have been examined, namely gelatin microemulsion based organogels and the addition of substituted phenols to AOT reverse micelles.
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Díaz D, Cid J, Vázquez P, Torres T. Strength Enhancement of Nanostructured Organogels through Inclusion of Phthalocyanine-Containing Complementary Organogelator Structures and In Situ Cross-Linking by Click Chemistry. Chemistry 2008; 14:9261-73. [DOI: 10.1002/chem.200800714] [Citation(s) in RCA: 59] [Impact Index Per Article: 3.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/07/2022]
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Nagayama K, Katakura R, Hata T, Naoe K, Imai M. Reactivity of Candida rugosa lipase in cetyltrimethylammonium bromide microemulsion–gelatin complex organogels. Biochem Eng J 2008. [DOI: 10.1016/j.bej.2007.08.015] [Citation(s) in RCA: 7] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/26/2022]
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14
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Dave R, Madamwar D. Candida rugosa lipase immobilized in Triton-X100 microemulsion based organogels (MBGs) for ester synthesis. Process Biochem 2008. [DOI: 10.1016/j.procbio.2007.10.012] [Citation(s) in RCA: 19] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 10/22/2022]
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Current awareness on yeast. Yeast 2006. [DOI: 10.1002/yea.1317] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/08/2022] Open
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