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Alginates Combined with Natural Polymers as Valuable Drug Delivery Platforms. Mar Drugs 2022; 21:md21010011. [PMID: 36662184 PMCID: PMC9861938 DOI: 10.3390/md21010011] [Citation(s) in RCA: 7] [Impact Index Per Article: 3.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/21/2022] [Revised: 12/19/2022] [Accepted: 12/20/2022] [Indexed: 12/28/2022] Open
Abstract
Alginates (ALG) have been used in biomedical and pharmaceutical technologies for decades. ALG are natural polymers occurring in brown algae and feature multiple advantages, including biocompatibility, low toxicity and mucoadhesiveness. Moreover, ALG demonstrate biological activities per se, including anti-hyperlipidemic, antimicrobial, anti-reflux, immunomodulatory or anti-inflammatory activities. ALG are characterized by gelling ability, one of the most frequently utilized properties in the drug form design. ALG have numerous applications in pharmaceutical technology that include micro- and nanoparticles, tablets, mucoadhesive dosage forms, wound dressings and films. However, there are some shortcomings, which impede the development of modified-release dosage forms or formulations with adequate mechanical strength based on pure ALG. Other natural polymers combined with ALG create great potential as drug carriers, improving limitations of ALG matrices. Therefore, in this paper, ALG blends with pectins, chitosan, gelatin, and carrageenans were critically reviewed.
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Carretti E, Poggi G, Ghelardi E, Porpora F, Magnani A, Fratini E, Dei L, Consumi M. Nanostructured fluids confined into Highly Viscous Polymeric Dispersions as cleaning tools for artifacts: A rheological, SAXS, DSC and TOF-SIMS study. Colloids Surf A Physicochem Eng Asp 2022. [DOI: 10.1016/j.colsurfa.2022.128968] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/17/2022]
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3
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Physicochemical Characterization of Hyaluronic Acid and Chitosan Liposome Coatings. APPLIED SCIENCES-BASEL 2021. [DOI: 10.3390/app112412071] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 12/19/2022]
Abstract
Hyaluronic acid (HA) and chitosan (CH) are biopolymers that are widely used in many biomedical applications and for cosmetic purposes. Their chemical properties are fundamental to them working as drug delivery systems and improving their synergistic effects. In this work, two different protocols were used to obtain zwitterionic liposomes coated with either hyaluronic acid or chitosan. Specifically, the methodologies used to perform vesicle preparation were chosen by taking into account the specific chemical properties of these two polysaccharides. In the case of chitosan, liposomes were first synthesized and then coated, whereas the coating of hyaluronic acid was achieved through lipidic film hydration in an HA aqueous solution. The size and the zeta-potential of the polysaccharide-coated liposomes were determined by dynamic light scattering (DLS). This approach allowed coated liposomes to be obtained with hydrodynamic diameters of 264.4 ± 12.5 and 450.3 ± 16.7 nm for HA- and CH-coated liposomes, respectively. The chemical characterization of the coated liposomal systems was obtained by surface infrared (ATR-FTIR) and nuclear magnetic resonance (NMR) spectroscopies. In particular, the presence of polysaccharides was confirmed by the bands assigned to amides and saccharides being in the 1500–1700 cm−1 and 800–1100 cm−1 regions, respectively. This approach allowed confirmation of the efficiency of the coating processes, evidencing the presence of HA or CH at the liposomal surface. These data were also supported by time-of-flight secondary ion mass spectrometry (ToF-SIMS), which provided specific assessments of surface (3–5 nm deep) composition and structure of the polysaccharide-coated liposomes. In this work, the synthesis and the physical chemistry characterization of coated liposomes with HA or CH represent an important step in improving the pharmacological properties of drug delivery systems.
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Leone G, Pepi S, Consumi M, Lamponi S, Fragai M, Martinucci M, Baldoneschi V, Francesconi O, Nativi C, Magnani A. Sodium hyaluronate-g-2-((N-(6-aminohexyl)-4-methoxyphenyl)sulfonamido)-N-hydroxyacetamide with enhanced affinity towards MMP12 catalytic domain to be used as visco-supplement with increased degradation resistance. Carbohydr Polym 2021; 271:118452. [PMID: 34364546 DOI: 10.1016/j.carbpol.2021.118452] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/03/2021] [Revised: 07/13/2021] [Accepted: 07/14/2021] [Indexed: 01/16/2023]
Abstract
The present paper describes the functionalization of sodium hyaluronate (NaHA) with a small molecule (2-((N-(6-aminohexyl)-4-methoxyphenyl)sulfonamido)-N-hydroxyacetamide) (MMPI) having proven inhibitory activity against membrane metalloproteins involved in inflammatory processes (i.e. MMP12). The obtained derivative (HA-MMPI) demonstrated an increased resistance to the in-vitro degradation by hyaluronidase, viscoelastic properties close to those of healthy human synovial fluid, cytocompatibility towards human chondrocytes and nanomolar affinity towards MMP 12. Thus, HA-MMPI can be considered a good candidate as viscosupplement in the treatment of knee osteoarticular disease.
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Affiliation(s)
- Gemma Leone
- Department of Biotechnology, Chemistry and Pharmacy, University of Siena, Via A. Moro 2, 53100 Siena, Italy; National Interuniversity Consortium of Materials Science and Technology (INSTM), Via Giusti 9, 50121 Firenze, Italy
| | - Simone Pepi
- Department of Biotechnology, Chemistry and Pharmacy, University of Siena, Via A. Moro 2, 53100 Siena, Italy; National Interuniversity Consortium of Materials Science and Technology (INSTM), Via Giusti 9, 50121 Firenze, Italy
| | - Marco Consumi
- Department of Biotechnology, Chemistry and Pharmacy, University of Siena, Via A. Moro 2, 53100 Siena, Italy; National Interuniversity Consortium of Materials Science and Technology (INSTM), Via Giusti 9, 50121 Firenze, Italy
| | - Stefania Lamponi
- Department of Biotechnology, Chemistry and Pharmacy, University of Siena, Via A. Moro 2, 53100 Siena, Italy; National Interuniversity Consortium of Materials Science and Technology (INSTM), Via Giusti 9, 50121 Firenze, Italy
| | - Marco Fragai
- Department of Chemistry, "Ugo Schiff" - University of Florence - Via della Lastruccia 13, 50019 Sesto Fiorentino, FI, Italy; Cerm, University of Florence, via L. Sacconi 6, 50019 Sesto Fiorentino, FI, Italy
| | - Marco Martinucci
- Department of Chemistry, "Ugo Schiff" - University of Florence - Via della Lastruccia 13, 50019 Sesto Fiorentino, FI, Italy
| | - Veronica Baldoneschi
- Department of Chemistry, "Ugo Schiff" - University of Florence - Via della Lastruccia 13, 50019 Sesto Fiorentino, FI, Italy; National Interuniversity Consortium of Materials Science and Technology (INSTM), Via Giusti 9, 50121 Firenze, Italy
| | - Oscar Francesconi
- Department of Chemistry, "Ugo Schiff" - University of Florence - Via della Lastruccia 13, 50019 Sesto Fiorentino, FI, Italy; National Interuniversity Consortium of Materials Science and Technology (INSTM), Via Giusti 9, 50121 Firenze, Italy
| | - Cristina Nativi
- Department of Chemistry, "Ugo Schiff" - University of Florence - Via della Lastruccia 13, 50019 Sesto Fiorentino, FI, Italy; National Interuniversity Consortium of Materials Science and Technology (INSTM), Via Giusti 9, 50121 Firenze, Italy
| | - Agnese Magnani
- Department of Biotechnology, Chemistry and Pharmacy, University of Siena, Via A. Moro 2, 53100 Siena, Italy; National Interuniversity Consortium of Materials Science and Technology (INSTM), Via Giusti 9, 50121 Firenze, Italy.
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Pashaei R, Loiselle SA, Leone G, Tamasi G, Dzingelevičienė R, Kowalkowski T, Gholizadeh M, Consumi M, Abbasi S, Sabaliauskaitė V, Buszewski B. Determination of nano and microplastic particles in hypersaline lakes by multiple methods. ENVIRONMENTAL MONITORING AND ASSESSMENT 2021; 193:668. [PMID: 34553268 DOI: 10.1007/s10661-021-09470-8] [Citation(s) in RCA: 7] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 05/09/2021] [Accepted: 09/14/2021] [Indexed: 06/13/2023]
Abstract
Microplastics and nanoplastics have a range of impacts on the aquatic environment and present major challenges to their mitigation and management. Their transport and fate depend on their composition, form, and the characteristics of the receiving environment. We explore the spatial and temporal dynamics of plastic particles in the world's second-largest hypersaline lake, combining information from microscopic, thermal gravimetric, and fractional methods. Studies on microplastic and nanoplastic pollution in these important environments are scarce, and there is limited understanding of their dynamics and fate. Our results for Urmia Lake (Iran) in 2016 and 2019 show a discrepancy in the composition and quantity of microplastics measured in river tributaries to the lake and the lake itself, suggesting an active microplastic sink. Potential sink mechanisms in hypersaline lakes are explored. The present study indicates that microplastics have different transport mechanisms and fate in these extreme environments, compared to lake and ocean environments.
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Affiliation(s)
- Reza Pashaei
- Marine Research Institute of Klaipeda University, Klaipeda, Lithuania.
- Department of Environmental Chemistry and Bioanalytics, Faculty of Chemistry, Nicolaus Copernicus University in Torun, Torun, Poland.
| | | | - Gemma Leone
- Department of Biotechnology, Chemistry, and Pharmacy, University of Siena, Siena, Italy
| | - Gabriella Tamasi
- Department of Biotechnology, Chemistry, and Pharmacy, University of Siena, Siena, Italy
| | | | - Tomasz Kowalkowski
- Department of Environmental Chemistry and Bioanalytics, Faculty of Chemistry, Nicolaus Copernicus University in Torun, Torun, Poland
| | - Mortaza Gholizadeh
- Faculty of Chemical and Petroleum Engineering, University of Tabriz, Tabriz, Iran
| | - Marco Consumi
- Department of Biotechnology, Chemistry, and Pharmacy, University of Siena, Siena, Italy
| | - Sajjad Abbasi
- Department of Earth Sciences, College of Science, Shiraz University, Shiraz, Iran
- Department of Radiochemistry and Environmental Chemistry, Maria Curie-Skłodowska University, Lublin, Poland
| | | | - Boguslaw Buszewski
- Interdisciplinary Centre of Modern Technologies, Nicolaus Copernicus University in Torun, Torun, Poland
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Leone G, Pepi S, Consumi M, Mahdizadeh FF, Lamponi S, Magnani A. Phosphorylated xanthan gum-Ag(I) complex as antibacterial viscosity enhancer for eye drops formulation. Carbohydr Polym 2021; 267:118196. [PMID: 34119163 DOI: 10.1016/j.carbpol.2021.118196] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/15/2021] [Revised: 04/12/2021] [Accepted: 04/27/2021] [Indexed: 01/16/2023]
Abstract
Topical instillation of eye drops represents the treatment of choice for many ocular diseases. Ophthalmic formulations must meet general requirements, i.e. pH, osmolality, transparency and viscosity to ensure adequate retention without inducing irritation and the development of eye infections. We developed a phosphorylated xanthan gum-Ag(I) complex (XGP-Ag) showing pH (pH = 7.1 ± 0.3) and osmolality values (311 ± 2 mOsm/kg) close to that of human tears (pH = 6.5-7.6 and 304 ± 23 mOsm/kg) thanks to the presence of phosphate moieties along the chain. The presence of phosphate groups covalently bound to the XG chains avoids their dispersion in fluid, thus reducing the risk of corneal calcification. 0.02% w/v XGP-Ag solution showed high transparency (higher than 95% along the entire visible range), adequate refractive index (1.334 ± 0.001) and viscosity in the range: γ 1 s-1-10,000 s- 1 (26.4 ± 0.8-2.1 ± 0.4 mPa·s). Its cytotoxicity and capability to hinder bacterial proliferation was also verified.
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Affiliation(s)
- Gemma Leone
- Department of Biotechnology, Chemistry and Pharmacy, University of Siena, via A. Moro 2, Siena 53100, Italy; INSTM, via G. Giusti 9, 50121 Firenze, Italy.
| | - Simone Pepi
- Department of Biotechnology, Chemistry and Pharmacy, University of Siena, via A. Moro 2, Siena 53100, Italy
| | - Marco Consumi
- Department of Biotechnology, Chemistry and Pharmacy, University of Siena, via A. Moro 2, Siena 53100, Italy; INSTM, via G. Giusti 9, 50121 Firenze, Italy
| | - Fariba Fahmideh Mahdizadeh
- Department of Biotechnology, Chemistry and Pharmacy, University of Siena, via A. Moro 2, Siena 53100, Italy
| | - Stefania Lamponi
- Department of Biotechnology, Chemistry and Pharmacy, University of Siena, via A. Moro 2, Siena 53100, Italy; INSTM, via G. Giusti 9, 50121 Firenze, Italy
| | - Agnese Magnani
- Department of Biotechnology, Chemistry and Pharmacy, University of Siena, via A. Moro 2, Siena 53100, Italy; INSTM, via G. Giusti 9, 50121 Firenze, Italy.
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Consumi M, Leone G, Tamasi G, Magnani A. Water content quantification by FTIR in carboxymethyl cellulose food additive. Food Addit Contam Part A Chem Anal Control Expo Risk Assess 2021; 38:1629-1635. [PMID: 34254897 DOI: 10.1080/19440049.2021.1948619] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/20/2022]
Abstract
Water content quantification of raw polysaccharide materials for food processing is generally performed by gravimetric analysis or titrimetric methods, which are time- and energy-consuming, non-eco-friendly and sample destructive. The present study develops and validates a new approach, based on the use of Fourier transform infrared (FTIR) spectroscopy, resulting in a model of the water content of carboxymethyl cellulose (CMC) polysaccharides. Samples of CMC were exposed to different relative humidity conditions. Water content was determined by standard gravimetric methods (OIV-Oeno 404-2010) and compared with the area of FTIR absorption in the range 3675-2980 cm-1, attributed to the stretching of OH groups. The strong correlation between gravimetric results and FTIR area (R2 = 0.88) showed no signs of bias across the water content range. A cross-validation technique to predict the water content by band area was assessed obtaining a general equation: y = 2.12 x + 2.80 with a high repetitively and good prediction of the tested models.
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Affiliation(s)
- Marco Consumi
- Department of Biotechnology, Chemistry and Pharmacy (DBCF), University of Siena, Siena, Italy.,Center for Colloid and Surface Science (CSGI), University of Florence, Sesto, Italy.,National Interuniversity Consortium of Materials Science and Technology (INSTM), Florence, Italy
| | - Gemma Leone
- Department of Biotechnology, Chemistry and Pharmacy (DBCF), University of Siena, Siena, Italy.,National Interuniversity Consortium of Materials Science and Technology (INSTM), Florence, Italy
| | - Gabriella Tamasi
- Department of Biotechnology, Chemistry and Pharmacy (DBCF), University of Siena, Siena, Italy.,Center for Colloid and Surface Science (CSGI), University of Florence, Sesto, Italy
| | - Agnese Magnani
- Department of Biotechnology, Chemistry and Pharmacy (DBCF), University of Siena, Siena, Italy.,National Interuniversity Consortium of Materials Science and Technology (INSTM), Florence, Italy
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Tamasi G, Bonechi C, Leone G, Andreassi M, Consumi M, Sangiorgio P, Verardi A, Rossi C, Magnani A. Varietal and Geographical Origin Characterization of Peaches and Nectarines by Combining Analytical Techniques and Statistical Approach. Molecules 2021; 26:molecules26144128. [PMID: 34299402 PMCID: PMC8306427 DOI: 10.3390/molecules26144128] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/15/2021] [Revised: 06/30/2021] [Accepted: 07/03/2021] [Indexed: 01/02/2023] Open
Abstract
Prunus persica L. is one of the most important fruit crops in European production, after grapes, apples, oranges and watermelons. Most varieties are rich in secondary metabolites, showing antioxidant properties for human health. The purpose of this study was to develop a chemical analysis methodology, which involves the use of different analytical-instrumental techniques to deepen the knowledge related to the profile of metabolites present in selected cultivars of peaches and nectarines cultivated in the Mediterranean area (Southern Italy). The comparative study was conducted by choosing yellow-fleshed peaches (RomeStar, ZeeLady) and yellow-fleshed nectarines (Nectaross, Venus) from two geographical areas (Piana di Sibari and Piana di Metaponto), and by determining the chemical parameters for the flesh and skin that allow for identification of any distinctive varietal and/or geographical characteristics. A combined analytical and chemometric approach was used, trough rheological, thermogravimetric (TGA), chromatographic (HPLC-ESI-MS), spectroscopic (UV-Vis, ATR-FTIR, NMR) and spectrometric (ToF-SIMS) analysis. This approach allowed us to identify the characterizing parameters for the analysis of a plant matrix so that the developed methodology could define an easily exportable and extendable model for the characterization of other types of vegetable matrices.
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Affiliation(s)
- Gabriella Tamasi
- Department of Biotechnology, Chemistry and Pharmacy, University of Siena, Via Aldo Moro, 2, 53100 Siena, Italy; (C.B.); (G.L.); (M.A.); (C.R.); (A.M.)
- Centre for Colloid and Surface Science (CSGI), University of Florence, Via della Lastruccia 3, Sesto Fiorentino, 50019 Firenze, Italy
- Correspondence: (G.T.); (M.C.)
| | - Claudia Bonechi
- Department of Biotechnology, Chemistry and Pharmacy, University of Siena, Via Aldo Moro, 2, 53100 Siena, Italy; (C.B.); (G.L.); (M.A.); (C.R.); (A.M.)
- Centre for Colloid and Surface Science (CSGI), University of Florence, Via della Lastruccia 3, Sesto Fiorentino, 50019 Firenze, Italy
| | - Gemma Leone
- Department of Biotechnology, Chemistry and Pharmacy, University of Siena, Via Aldo Moro, 2, 53100 Siena, Italy; (C.B.); (G.L.); (M.A.); (C.R.); (A.M.)
- National Interuniversity Consortium of Materials Science and Technology (INSTM), Via G. Giusti 9, 50121 Firenze, Italy
| | - Marco Andreassi
- Department of Biotechnology, Chemistry and Pharmacy, University of Siena, Via Aldo Moro, 2, 53100 Siena, Italy; (C.B.); (G.L.); (M.A.); (C.R.); (A.M.)
| | - Marco Consumi
- Department of Biotechnology, Chemistry and Pharmacy, University of Siena, Via Aldo Moro, 2, 53100 Siena, Italy; (C.B.); (G.L.); (M.A.); (C.R.); (A.M.)
- National Interuniversity Consortium of Materials Science and Technology (INSTM), Via G. Giusti 9, 50121 Firenze, Italy
- Correspondence: (G.T.); (M.C.)
| | - Paola Sangiorgio
- ENEA, Trisaia Research Center, Italian National Agency for New Technologies, Energy and Sustainable Economic Development, Department of Sustainability, SS Jonica 106, km 419+500, 7026 Rotondella, Italy; (P.S.); (A.V.)
| | - Alessandra Verardi
- ENEA, Trisaia Research Center, Italian National Agency for New Technologies, Energy and Sustainable Economic Development, Department of Sustainability, SS Jonica 106, km 419+500, 7026 Rotondella, Italy; (P.S.); (A.V.)
| | - Claudio Rossi
- Department of Biotechnology, Chemistry and Pharmacy, University of Siena, Via Aldo Moro, 2, 53100 Siena, Italy; (C.B.); (G.L.); (M.A.); (C.R.); (A.M.)
- Centre for Colloid and Surface Science (CSGI), University of Florence, Via della Lastruccia 3, Sesto Fiorentino, 50019 Firenze, Italy
- Operative Unit, University of Siena, Campo Verde, Castrovillari, 87012 Cosenza, Italy
| | - Agnese Magnani
- Department of Biotechnology, Chemistry and Pharmacy, University of Siena, Via Aldo Moro, 2, 53100 Siena, Italy; (C.B.); (G.L.); (M.A.); (C.R.); (A.M.)
- National Interuniversity Consortium of Materials Science and Technology (INSTM), Via G. Giusti 9, 50121 Firenze, Italy
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Tamasi G, Pardini A, Croce R, Consumi M, Leone G, Bonechi C, Rossi C, Magnani A. Combined Experimental and Multivariate Model Approaches for Glycoalkaloid Quantification in Tomatoes. Molecules 2021; 26:molecules26113068. [PMID: 34063803 PMCID: PMC8196588 DOI: 10.3390/molecules26113068] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/29/2021] [Revised: 05/17/2021] [Accepted: 05/18/2021] [Indexed: 01/16/2023] Open
Abstract
The intake of tomato glycoalkaloids can exert beneficial effects on human health. For this reason, methods for a rapid quantification of these compounds are required. Most of the methods for α-tomatine and dehydrotomatine quantification are based on chromatographic techniques. However, these techniques require complex and time-consuming sample pre-treatments. In this work, HPLC-ESI-QqQ-MS/MS was used as reference method. Subsequently, multiple linear regression (MLR) and partial least squares regression (PLSR) were employed to create two calibration models for the prediction of the tomatine content from thermogravimetric (TGA) and attenuated total reflectance (ATR) infrared spectroscopy (IR) analyses. These two fast techniques were proven to be suitable and effective in alkaloid quantification (R2 = 0.998 and 0.840, respectively), achieving low errors (0.11 and 0.27%, respectively) with the reference technique.
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Affiliation(s)
- Gabriella Tamasi
- Department of Biotechnology Chemistry and Pharmacy, University of Siena, via A. Moro 2, 53100 Siena, Italy; (A.P.); (R.C.); (G.L.); (C.B.); (C.R.); (A.M.)
- Center for Colloid and Surface Science (CSGI), via della Lastruccia 3, 50019 Sesto Fiorentino, Italy
- Correspondence: (G.T.); (M.C.)
| | - Alessio Pardini
- Department of Biotechnology Chemistry and Pharmacy, University of Siena, via A. Moro 2, 53100 Siena, Italy; (A.P.); (R.C.); (G.L.); (C.B.); (C.R.); (A.M.)
- Center for Colloid and Surface Science (CSGI), via della Lastruccia 3, 50019 Sesto Fiorentino, Italy
| | - Riccardo Croce
- Department of Biotechnology Chemistry and Pharmacy, University of Siena, via A. Moro 2, 53100 Siena, Italy; (A.P.); (R.C.); (G.L.); (C.B.); (C.R.); (A.M.)
| | - Marco Consumi
- Department of Biotechnology Chemistry and Pharmacy, University of Siena, via A. Moro 2, 53100 Siena, Italy; (A.P.); (R.C.); (G.L.); (C.B.); (C.R.); (A.M.)
- National Interuniversity Consortium of Materials Science and Technology (INSTM), via G. Giusti 9, 50121 Firenze, Italy
- Correspondence: (G.T.); (M.C.)
| | - Gemma Leone
- Department of Biotechnology Chemistry and Pharmacy, University of Siena, via A. Moro 2, 53100 Siena, Italy; (A.P.); (R.C.); (G.L.); (C.B.); (C.R.); (A.M.)
- National Interuniversity Consortium of Materials Science and Technology (INSTM), via G. Giusti 9, 50121 Firenze, Italy
| | - Claudia Bonechi
- Department of Biotechnology Chemistry and Pharmacy, University of Siena, via A. Moro 2, 53100 Siena, Italy; (A.P.); (R.C.); (G.L.); (C.B.); (C.R.); (A.M.)
- Center for Colloid and Surface Science (CSGI), via della Lastruccia 3, 50019 Sesto Fiorentino, Italy
| | - Claudio Rossi
- Department of Biotechnology Chemistry and Pharmacy, University of Siena, via A. Moro 2, 53100 Siena, Italy; (A.P.); (R.C.); (G.L.); (C.B.); (C.R.); (A.M.)
- Center for Colloid and Surface Science (CSGI), via della Lastruccia 3, 50019 Sesto Fiorentino, Italy
| | - Agnese Magnani
- Department of Biotechnology Chemistry and Pharmacy, University of Siena, via A. Moro 2, 53100 Siena, Italy; (A.P.); (R.C.); (G.L.); (C.B.); (C.R.); (A.M.)
- National Interuniversity Consortium of Materials Science and Technology (INSTM), via G. Giusti 9, 50121 Firenze, Italy
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Talarico L, Consumi M, Leone G, Tamasi G, Magnani A. Solid Lipid Nanoparticles Produced via a Coacervation Method as Promising Carriers for Controlled Release of Quercetin. Molecules 2021; 26:2694. [PMID: 34064488 PMCID: PMC8125226 DOI: 10.3390/molecules26092694] [Citation(s) in RCA: 22] [Impact Index Per Article: 7.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/15/2021] [Revised: 04/29/2021] [Accepted: 05/02/2021] [Indexed: 12/25/2022] Open
Abstract
Quercetin is a poorly water-soluble flavonoid with many benefits to human health. Besides the natural food resources that may provide Quercetin, the interest in delivery systems that could enhance its bioavailability in the human body has seen growth in recent years. Promising delivery system candidates are represented by Solid Lipid Nanoparticles (SLNs) which are composed of well-tolerated compounds and provide a relatively high encapsulation efficiency and suitable controlled release. In this study, Quercetin-loaded and negatively charged Solid Lipid Nanoparticles were synthesized based on a coacervation method, using stearic acid as a core lipid and Arabic Gum as a stabilizer. Samples were qualitatively characterized by Dynamic light scattering (DLS), Zeta Potential, Surface infrared spectroscopy (FTIR-ATR), and Time of flight secondary ion mass spectrometry (ToF-SIMS). Encapsulation efficiency, drug release, and antioxidant effect against ABTS•+ were evaluated in vitro by UV-VIS spectrophotometry.
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Affiliation(s)
- Luigi Talarico
- Department of Biotechnology, Chemistry and Pharmacy, University of Siena, Via Aldo Moro 2, 53100 Siena, Italy; (L.T.); (G.L.); (G.T.)
- National Interuniversity Consortium of Materials Science and Technology (INSTM)—Siena Research Unit, Via G. Giusti 9, 50121 Firenze, Italy
| | - Marco Consumi
- Department of Biotechnology, Chemistry and Pharmacy, University of Siena, Via Aldo Moro 2, 53100 Siena, Italy; (L.T.); (G.L.); (G.T.)
- National Interuniversity Consortium of Materials Science and Technology (INSTM)—Siena Research Unit, Via G. Giusti 9, 50121 Firenze, Italy
| | - Gemma Leone
- Department of Biotechnology, Chemistry and Pharmacy, University of Siena, Via Aldo Moro 2, 53100 Siena, Italy; (L.T.); (G.L.); (G.T.)
- National Interuniversity Consortium of Materials Science and Technology (INSTM)—Siena Research Unit, Via G. Giusti 9, 50121 Firenze, Italy
| | - Gabriella Tamasi
- Department of Biotechnology, Chemistry and Pharmacy, University of Siena, Via Aldo Moro 2, 53100 Siena, Italy; (L.T.); (G.L.); (G.T.)
- National Interuniversity Consortium of Materials Science and Technology (INSTM)—Siena Research Unit, Via G. Giusti 9, 50121 Firenze, Italy
| | - Agnese Magnani
- Department of Biotechnology, Chemistry and Pharmacy, University of Siena, Via Aldo Moro 2, 53100 Siena, Italy; (L.T.); (G.L.); (G.T.)
- National Interuniversity Consortium of Materials Science and Technology (INSTM)—Siena Research Unit, Via G. Giusti 9, 50121 Firenze, Italy
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Pardini A, Consumi M, Leone G, Bonechi C, Tamasi G, Sangiorgio P, Verardi A, Rossi C, Magnani A. Effect of different post-harvest storage conditions and heat treatment on tomatine content in commercial varieties of green tomatoes. J Food Compost Anal 2021. [DOI: 10.1016/j.jfca.2020.103735] [Citation(s) in RCA: 7] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/15/2022]
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Consumi M, Leone G, Pepi S, Pardini A, Lamponi S, Bonechi C, Tamasi G, Rossi C, Magnani A. Calcium ions hyaluronan/gellan gum protective shell for delivery of oleuropein in the knee. INT J POLYM MATER PO 2020. [DOI: 10.1080/00914037.2020.1848831] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/16/2023]
Affiliation(s)
- Marco Consumi
- Department of Biotechnology, Chemistry and Pharmacy, University of Siena, Siena, Italy
- INSTM, Firenze, Italy
| | - Gemma Leone
- Department of Biotechnology, Chemistry and Pharmacy, University of Siena, Siena, Italy
- INSTM, Firenze, Italy
| | - Simone Pepi
- Department of Biotechnology, Chemistry and Pharmacy, University of Siena, Siena, Italy
| | - Alessio Pardini
- Department of Biotechnology, Chemistry and Pharmacy, University of Siena, Siena, Italy
| | - Stefania Lamponi
- Department of Biotechnology, Chemistry and Pharmacy, University of Siena, Siena, Italy
- INSTM, Firenze, Italy
| | - Claudia Bonechi
- Department of Biotechnology, Chemistry and Pharmacy, University of Siena, Siena, Italy
- CSGI, Sesto Fiorentino, Italy
| | - Gabriella Tamasi
- Department of Biotechnology, Chemistry and Pharmacy, University of Siena, Siena, Italy
- CSGI, Sesto Fiorentino, Italy
| | - Claudio Rossi
- Department of Biotechnology, Chemistry and Pharmacy, University of Siena, Siena, Italy
- CSGI, Sesto Fiorentino, Italy
| | - Agnese Magnani
- Department of Biotechnology, Chemistry and Pharmacy, University of Siena, Siena, Italy
- INSTM, Firenze, Italy
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Non-Destructive Monitoring of P. fluorescens and S. epidermidis Biofilm under Different Media by Fourier Transform Infrared Spectroscopy and Other Corroborative Techniques. COATINGS 2020. [DOI: 10.3390/coatings10100930] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 12/17/2022]
Abstract
In the present study, the early stage of bacteria biofilm formation has been studied as a function of different nutrients. Infrared spectra of Pseudomonas fluorescens (PF) and Staphylococcus epidermidis (SE), on germanium ATR crystal, were collected under deionized water H2O, phosphate buffered solution (PBS) and PBS with glucose (PBS-G). In H2O, protein bands of PF increased while, no difference in PBS and PBS-G were observed until 135 min. SE strain showed a low sensitivity to PBS composition starting to expose proteins on surfaces after 120 min. SE shows a low polysaccharides increase in H2O while, in bare and enriched PBS their intensity increases after 120 and 75 min. in PBS and PBS-G respectively. PF exhibits a peculiar behavior in H2O where the saccharide bands increased strongly after 100 min, while under all the other conditions, the intensity of polysaccharide bands increased up to the plateau probably because the layer of the biofilm exceeded the penetration capability of FTIR technique. All data suggest that, under lack of nutrients, both the bacteria tend to firmly anchor themselves to the support using proteins.
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Consumi M, Leone G, Bonechi C, Tamasi G, Lamponi S, Donati A, Rossi C, Magnani A. Plasticizers free polyvinyl chloride membrane for metal ions sequestering. INORG CHEM COMMUN 2020. [DOI: 10.1016/j.inoche.2020.108100] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/23/2022]
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Leone G, Consumi M, Pepi S, Pardini A, Bonechi C, Tamasi G, Donati A, Rossi C, Magnani A. Poly-vinyl alcohol (PVA) crosslinked by trisodium trimetaphosphate (STMP) and sodium hexametaphosphate (SHMP): Effect of molecular weight, pH and phosphorylating agent on length of spacing arms, crosslinking density and water interaction. J Mol Struct 2020. [DOI: 10.1016/j.molstruc.2019.127264] [Citation(s) in RCA: 12] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/07/2023]
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Leone G, Consumi M, Pepi S, Pardini A, Bonechi C, Tamasi G, Donati A, Lamponi S, Rossi C, Magnani A. Enriched Gellan Gum hydrogel as visco-supplement. Carbohydr Polym 2019; 227:115347. [PMID: 31590845 DOI: 10.1016/j.carbpol.2019.115347] [Citation(s) in RCA: 33] [Impact Index Per Article: 6.6] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/01/2019] [Revised: 08/29/2019] [Accepted: 09/18/2019] [Indexed: 01/27/2023]
Abstract
Viscosupplementation, i.e. intra-articular injection of hyaluronic acid derivatives, is considered as the most effective treatment for patients with mild to moderate osteoarthritis. Even if hyaluronic acid is still considered as the gold standard, research is now focusing on the development of new products with enhanced injectability and yet reasonable viscoelastic behavior for OA treatment. A Gellan Gum (GG) hydrogel was synthesized and coated with crosslinked polyvinyl alcohol (PVA) to protect the polysaccharide from degradation during sterilization and improve its performance for the foreseen application. Thermal analyses indicated that mixed hydrogel showed a higher degree of structuring than the bare polysaccharide core without losing its swelling properties, thanks to the hydrophylicity of both coating and cross-linking agent. The PVA coating increased elastic and viscous moduli of the polysaccharide core conferring it a higher resistance to shear and compression and better thixotropic properties. Despite the double crosslinking, hydrogel was injectable. Cytocompatibility towards chondrocytes was verified.
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Affiliation(s)
- Gemma Leone
- Department of Biotechnology, Chemistry and Pharmacy, University of Siena, via A. Moro 2, Siena 53100, Italy; INSTM, via G. Giusti 9, 50121 Firenze, Italy.
| | - Marco Consumi
- Department of Biotechnology, Chemistry and Pharmacy, University of Siena, via A. Moro 2, Siena 53100, Italy; INSTM, via G. Giusti 9, 50121 Firenze, Italy
| | - Simone Pepi
- Department of Biotechnology, Chemistry and Pharmacy, University of Siena, via A. Moro 2, Siena 53100, Italy
| | - Alessio Pardini
- Department of Biotechnology, Chemistry and Pharmacy, University of Siena, via A. Moro 2, Siena 53100, Italy
| | - Claudia Bonechi
- Department of Biotechnology, Chemistry and Pharmacy, University of Siena, via A. Moro 2, Siena 53100, Italy; CSGI, via della Lastruccia 3, 50019, Sesto Fiorentino, Italy
| | - Gabriella Tamasi
- Department of Biotechnology, Chemistry and Pharmacy, University of Siena, via A. Moro 2, Siena 53100, Italy; CSGI, via della Lastruccia 3, 50019, Sesto Fiorentino, Italy
| | - Alessandro Donati
- Department of Biotechnology, Chemistry and Pharmacy, University of Siena, via A. Moro 2, Siena 53100, Italy; CSGI, via della Lastruccia 3, 50019, Sesto Fiorentino, Italy
| | - Stefania Lamponi
- Department of Biotechnology, Chemistry and Pharmacy, University of Siena, via A. Moro 2, Siena 53100, Italy; INSTM, via G. Giusti 9, 50121 Firenze, Italy
| | - Claudio Rossi
- Department of Biotechnology, Chemistry and Pharmacy, University of Siena, via A. Moro 2, Siena 53100, Italy; CSGI, via della Lastruccia 3, 50019, Sesto Fiorentino, Italy
| | - Agnese Magnani
- Department of Biotechnology, Chemistry and Pharmacy, University of Siena, via A. Moro 2, Siena 53100, Italy; INSTM, via G. Giusti 9, 50121 Firenze, Italy.
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Lamponi S, Aloisi AM, Bonechi C, Consumi M, Donati A, Leone G, Rossi C, Tamasi G, Ghiandai L, Ferrini E, Fiorenzani P, Ceccarelli I, Magnani A. Evaluation of in vitro cell and blood compatibility and in vivo analgesic activity of plant-derived dietary supplements. JOURNAL OF INTEGRATIVE MEDICINE-JIM 2019; 17:213-220. [DOI: 10.1016/j.joim.2019.02.004] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Received: 08/22/2018] [Accepted: 12/29/2018] [Indexed: 12/21/2022]
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Bonechi C, Consumi M, Matteucci M, Tamasi G, Donati A, Leone G, Menichetti L, Kusmic C, Rossi C, Magnani A. Distribution of Gadolinium in Rat Heart Studied by Fast Field Cycling Relaxometry and Imaging SIMS. Int J Mol Sci 2019; 20:E1339. [PMID: 30884846 PMCID: PMC6471734 DOI: 10.3390/ijms20061339] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/08/2019] [Revised: 02/27/2019] [Accepted: 03/13/2019] [Indexed: 11/23/2022] Open
Abstract
Research on microcirculatory alterations in human heart disease is essential to understand the genesis of myocardial contractile dysfunction and its evolution towards heart failure. The use of contrast agents in magnetic resonance imaging is an important tool in medical diagnostics related to this dysfunction. Contrast agents significantly improve the imaging by enhancing the nuclear magnetic relaxation rates of water protons in the tissues where they are distributed. Gadolinium complexes are widely employed in clinical practice due to their high magnetic moment and relatively long electronic relaxation time. In this study, the behavior of gadolinium ion as a contrast agent was investigated by two complementary methods, relaxometry and secondary ion mass spectrometry. The study examined the distribution of blood flow within the microvascular network in ex vivo Langendorff isolated rat heart models, perfused with Omniscan® contrast agent. The combined use of secondary ion mass spectrometry and relaxometry allowed for both a qualitative mapping of agent distribution as well as the quantification of gadolinium ion concentration and persistence. This combination of a chemical mapping and temporal analysis of the molar concentration of gadolinium ion in heart tissue allows for new insights on the biomolecular mechanisms underlying the microcirculatory alterations in heart disease.
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Affiliation(s)
- Claudia Bonechi
- Department of Biotechnology, Chemistry and Pharmacy, Via Aldo Moro 2, 53100 Siena, Italy.
- Center for Colloids and Surface Science (CSGI), Via della Lastruccia 3, 50019 Sesto Fiorentino, Firenze, Italy.
| | - Marco Consumi
- Department of Biotechnology, Chemistry and Pharmacy, Via Aldo Moro 2, 53100 Siena, Italy.
- National Interuniversity Consortium of Materials Science and Technology (INSTM), Via Giuseppe Giusti 9, 50121 Firenze, Italy.
| | - Marco Matteucci
- CNR Institute of Clinical Physiology, Area di Ricerca "S. Cataldo", Via Giuseppe Moruzzi 1, 56124 Pisa, Italy.
| | - Gabriella Tamasi
- Department of Biotechnology, Chemistry and Pharmacy, Via Aldo Moro 2, 53100 Siena, Italy.
- Center for Colloids and Surface Science (CSGI), Via della Lastruccia 3, 50019 Sesto Fiorentino, Firenze, Italy.
| | - Alessandro Donati
- Department of Biotechnology, Chemistry and Pharmacy, Via Aldo Moro 2, 53100 Siena, Italy.
- Center for Colloids and Surface Science (CSGI), Via della Lastruccia 3, 50019 Sesto Fiorentino, Firenze, Italy.
| | - Gemma Leone
- Department of Biotechnology, Chemistry and Pharmacy, Via Aldo Moro 2, 53100 Siena, Italy.
- National Interuniversity Consortium of Materials Science and Technology (INSTM), Via Giuseppe Giusti 9, 50121 Firenze, Italy.
| | - Luca Menichetti
- CNR Institute of Clinical Physiology, Area di Ricerca "S. Cataldo", Via Giuseppe Moruzzi 1, 56124 Pisa, Italy.
| | - Claudia Kusmic
- CNR Institute of Clinical Physiology, Area di Ricerca "S. Cataldo", Via Giuseppe Moruzzi 1, 56124 Pisa, Italy.
| | - Claudio Rossi
- Department of Biotechnology, Chemistry and Pharmacy, Via Aldo Moro 2, 53100 Siena, Italy.
- Center for Colloids and Surface Science (CSGI), Via della Lastruccia 3, 50019 Sesto Fiorentino, Firenze, Italy.
| | - Agnese Magnani
- Department of Biotechnology, Chemistry and Pharmacy, Via Aldo Moro 2, 53100 Siena, Italy.
- National Interuniversity Consortium of Materials Science and Technology (INSTM), Via Giuseppe Giusti 9, 50121 Firenze, Italy.
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Development of liposomal formulations to potentiate natural lovastatin inhibitory activity towards 3-hydroxy-3-methyl-glutaryl coenzyme A (HMG-CoA) reductase. J Drug Deliv Sci Technol 2018. [DOI: 10.1016/j.jddst.2017.09.019] [Citation(s) in RCA: 21] [Impact Index Per Article: 3.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/19/2023]
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