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Gruppuso M, Turco G, Marsich E, Porrelli D. Antibacterial and bioactive multilayer electrospun wound dressings based on hyaluronic acid and lactose-modified chitosan. BIOMATERIALS ADVANCES 2023; 154:213613. [PMID: 37666062 DOI: 10.1016/j.bioadv.2023.213613] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 03/01/2023] [Revised: 08/11/2023] [Accepted: 08/26/2023] [Indexed: 09/06/2023]
Abstract
Antibacterial multilayer electrospun matrices based on hyaluronic acid (HA) and a lactose-modified chitosan (CTL) were synthetized (i) by combining electrospun polycaprolactone (PCL) and polysaccharidic matrices in a bilayer device and (ii) by sequentially coating the PCL mat with CTL and HA. In both cases, the antibacterial activity was provided by loading rifampicin within the PCL support. All matrices disclosed suitable morphology and physicochemical properties to be employed as wound dressings. Indeed, both the bilayer and coated fibers showed an optimal swelling capacity (3426 ± 492 % and 1435 ± 251 % after 7 days, respectively) and water vapor permeability (160 ± 0.78 g/m2h and 170 ± 12 g/m2h at 7 days, respectively). On the other hand, the polysaccharidic dressings were completely wettable in the presence of various types of fluids. Depending on the preparation method, a different release of both polysaccharides and rifampicin was detected, and the immediate polysaccharide dissolution from the bilayer structure impacted the antibiotic release (42 ± 4 % from the bilayer structure against 25 ± 2 % from the coated fibers in 4 h). All the multilayer matrices, regardless of their production strategy and composition, revealed optimal biocompatibility and bioactivity with human dermal fibroblasts, as the released bioactive polysaccharides induced a faster wound closure in the cell monolayer (100 % in 24 h) compared to the controls (78 ± 8 % for untreated cells and 89 ± 5 % for cells treated with PCL alone, after 24 h). The inhibitory and bactericidal effects of the rifampicin loaded matrices were assessed on S. aureus, S. epidermidis, E. coli, and P. aeruginosa. The antibacterial matrices were found to be highly effective except for E. coli, which was more resistant even at higher amounts of rifampicin, with a bacterial concentration of 6.4 ± 0.4 log CFU/mL and 6.8 ± 0.3 log CFU/mL after 4 h in the presence of the rifampicin-loaded bilayer and coated matrices, respectively.
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Affiliation(s)
- Martina Gruppuso
- Department of Medicine, Surgery and Health Sciences, University of Trieste, Piazza dell'Ospitale 1, 34129 Trieste, Italy.
| | - Gianluca Turco
- Department of Medicine, Surgery and Health Sciences, University of Trieste, Piazza dell'Ospitale 1, 34129 Trieste, Italy.
| | - Eleonora Marsich
- Department of Medicine, Surgery and Health Sciences, University of Trieste, Via Licio Giorgieri 5, 34127 Trieste, Italy.
| | - Davide Porrelli
- Department of Medicine, Surgery and Health Sciences, University of Trieste, Piazza dell'Ospitale 1, 34129 Trieste, Italy.
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Mardirossian M, Gruppuso M, Guagnini B, Mihalić F, Turco G, Porrelli D. Advantages of agarose on alginate for the preparation of polysaccharide/hydroxyapatite porous bone scaffolds compatible with a proline-rich antimicrobial peptide. Biomed Mater 2023; 18:065018. [PMID: 37827164 DOI: 10.1088/1748-605x/ad02d3] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/07/2023] [Accepted: 10/12/2023] [Indexed: 10/14/2023]
Abstract
The optimized proline-rich antimicrobial peptide B7-005 was loaded on bone scaffolds based on polysaccharides and hydroxyapatite. Alginate was firstly chosen in order to exploit its negative charges, which allowed an efficient B7-005 loading but hindered its release, due to the strong interactions with the positive charged peptide. Hence, alginate was substituted with agarose which allowed to prepare scaffolds with similar structure, porosity, and mechanical performance than the ones prepared with alginate and hydroxyapatite. Moreover, agarose scaffolds could release B7-005 within the first 24 h of immersion in aqueous environment. The peptide did not impaired MG-63 cell adhesion and proliferation in the scaffold, and a positive cell proliferation trend was observed up to two weeks. The released B7-005 was effective against the pathogensE. coli, K. pneumoniae, andA. baumannii, but not againstS. aureusandP. aeruginosa, thus requiring further tuning of the system to improve its antimicrobial activity.
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Affiliation(s)
- Mario Mardirossian
- Department of Medicine, Surgery and Health Sciences, University of Trieste, Piazza dell'Ospitale 1, 34129 Trieste, Italy
| | - Martina Gruppuso
- Department of Medicine, Surgery and Health Sciences, University of Trieste, Piazza dell'Ospitale 1, 34129 Trieste, Italy
| | - Benedetta Guagnini
- Department of Medicine, Surgery and Health Sciences, University of Trieste, Piazza dell'Ospitale 1, 34129 Trieste, Italy
| | - Franka Mihalić
- Department of Life Sciences, University of Trieste, Via Licio Giorgieri 5, 34127 Trieste, Italy
| | - Gianluca Turco
- Department of Medicine, Surgery and Health Sciences, University of Trieste, Piazza dell'Ospitale 1, 34129 Trieste, Italy
| | - Davide Porrelli
- Department of Medicine, Surgery and Health Sciences, University of Trieste, Piazza dell'Ospitale 1, 34129 Trieste, Italy
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Panahi HKS, Dehhaghi M, Amiri H, Guillemin GJ, Gupta VK, Rajaei A, Yang Y, Peng W, Pan J, Aghbashlo M, Tabatabaei M. Current and emerging applications of saccharide-modified chitosan: a critical review. Biotechnol Adv 2023; 66:108172. [PMID: 37169103 DOI: 10.1016/j.biotechadv.2023.108172] [Citation(s) in RCA: 12] [Impact Index Per Article: 12.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/30/2022] [Revised: 04/15/2023] [Accepted: 05/06/2023] [Indexed: 05/13/2023]
Abstract
Chitin, as the main component of the exoskeleton of Arthropoda, is a highly available natural polymer that can be processed into various value-added products. Its most important derivative, i.e., chitosan, comprising β-1,4-linked 2-amino-2-deoxy-β-d-glucose (deacetylated d-glucosamine) and N-acetyl-d-glucosamine units, can be prepared via alkaline deacetylation process. Chitosan has been used as a biodegradable, biocompatible, non-antigenic, and nontoxic polymer in some in-vitro applications, but the recently found potentials of chitosan for in-vivo applications based on its biological activities, especially antimicrobial, antioxidant, and anticancer activities, have upgraded the chitosan roles in biomaterials. Chitosan approval, generally recognized as a safe compound by the United States Food and Drug Administration, has attracted much attention toward its possible applications in diverse fields, especially biomedicine and agriculture. Even with some favorable characteristics, the chitosan's structure should be customized for advanced applications, especially due to its drawbacks, such as low drug-load capacity, low solubility, high viscosity, lack of elastic properties, and pH sensitivity. In this context, derivatization with relatively inexpensive and highly available mono- and di-saccharides to soluble branched chitosan has been considered a "game changer". This review critically reviews the emerging technologies based on the synthesis and application of lactose- and galactose-modified chitosan as two important chitosan derivatives. Some characteristics of chitosan derivatives and biological activities have been detailed first to understand the value of these natural polymers. Second, the saccharide modification of chitosan has been discussed briefly. Finally, the applications of lactose- and galactose-modified chitosan have been scrutinized and compared to native chitosan to provide an insight into the current state-of-the research for stimulating new ideas with the potential of filling research gaps.
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Affiliation(s)
- Hamed Kazemi Shariat Panahi
- Henan Province Engineering Research Center for Forest Biomass Value-added Products, School of Forestry, Henan Agricultural University, Zhengzhou 450002, China; Neuroinflammation Group, Department of Biomedical Sciences, Faculty of Medicine, Health and Human Sciences, Macquarie University, NSW, Australia
| | - Mona Dehhaghi
- Neuroinflammation Group, Department of Biomedical Sciences, Faculty of Medicine, Health and Human Sciences, Macquarie University, NSW, Australia
| | - Hamid Amiri
- Department of Biotechnology, Faculty of Biological Science and Technology, University of Isfahan, Isfahan 81746-73441, Iran; Environmental Research Institute, University of Isfahan, Isfahan 81746-73441, Iran
| | - Gilles J Guillemin
- Neuroinflammation Group, Department of Biomedical Sciences, Faculty of Medicine, Health and Human Sciences, Macquarie University, NSW, Australia
| | - Vijai Kumar Gupta
- Centre for Safe and Improved Food, SRUC, Kings Buildings, West Mains Road, Edinburgh EH9 3JG, UK; Biorefining and Advanced Materials Research Center, SRUC, Kings Buildings, West Mains Road, Edinburgh EH9 3JG, UK
| | - Ahmad Rajaei
- Department of Food Science and Technology, Faculty of Agriculture, Shahrood University of Technology, Shahrood, Iran
| | - Yadong Yang
- State Key Laboratory of Efficient Utilization of Arid and Semi-arid Arable Land in Northern China, Institute of Agricultural Resources and Regional Planning, Chinese Academy of Agricultural Sciences, Beijing 100081, China
| | - Wanxi Peng
- Henan Province Engineering Research Center for Forest Biomass Value-added Products, School of Forestry, Henan Agricultural University, Zhengzhou 450002, China.
| | - Junting Pan
- State Key Laboratory of Efficient Utilization of Arid and Semi-arid Arable Land in Northern China, Institute of Agricultural Resources and Regional Planning, Chinese Academy of Agricultural Sciences, Beijing 100081, China.
| | - Mortaza Aghbashlo
- Henan Province Engineering Research Center for Forest Biomass Value-added Products, School of Forestry, Henan Agricultural University, Zhengzhou 450002, China; Department of Mechanical Engineering of Agricultural Machinery, Faculty of Agricultural Engineering and Technology, College of Agriculture and Natural Resources, University of Tehran, Karaj, Iran.
| | - Meisam Tabatabaei
- Henan Province Engineering Research Center for Forest Biomass Value-added Products, School of Forestry, Henan Agricultural University, Zhengzhou 450002, China; Higher Institution Centre of Excellence (HICoE), Institute of Tropical Aquaculture and Fisheries (AKUATROP), Universiti Malaysia Terengganu, Kuala Nerus, Terengganu 21030, Malaysia; Department of Biomaterials, Saveetha Dental College, Saveetha Institute of Medical and Technical Sciences, Chennai 600 077, India.
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Porrelli D, Gruppuso M, Vecchies F, Marsich E, Turco G. Alginate bone scaffolds coated with a bioactive lactose modified chitosan for human dental pulp stem cells proliferation and differentiation. Carbohydr Polym 2021; 273:118610. [PMID: 34561009 DOI: 10.1016/j.carbpol.2021.118610] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/27/2021] [Revised: 06/21/2021] [Accepted: 08/20/2021] [Indexed: 12/27/2022]
Abstract
Bioactive and biodegradable porous scaffolds can hasten the healing of bone defects; moreover, patient stem cells seeded onto scaffolds can enhance the osteoinductive and osteoconductive properties of these biomaterials. In this work, porous alginate/hydroxyapatite scaffolds were functionalized with a bioactive coating of a lactose-modified chitosan (CTL). The highly interconnected porous structure of the scaffold was homogeneously coated with CTL. The scaffolds showed remarkable stability up to 60 days of aging. Human Dental Pulp Stem Cells (hDPSCs) cultured in the presence of CTL diluted in culture medium, showed a slight and negligible increase in terms of proliferation rate; on the contrary, an effect on osteogenic differentiation of the cells was observed as a significant increase in alkaline phosphatase activity. hDPSCs showed higher cell adhesion on CTL-coated scaffolds than on uncoated ones. CTL coating did not affect cell proliferation, but stimulated cell differentiation as shown by alkaline phosphatase activity analysis.
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Affiliation(s)
- Davide Porrelli
- Department of Medicine, Surgery and Health Sciences, University of Trieste, Piazza dell'Ospitale 1, 34125 Trieste, Italy.
| | - Martina Gruppuso
- Department of Medicine, Surgery and Health Sciences, University of Trieste, Piazza dell'Ospitale 1, 34125 Trieste, Italy.
| | - Federica Vecchies
- Department of Life Sciences, University of Trieste, Via Licio Giorgieri 5, 34127 Trieste, Italy.
| | - Eleonora Marsich
- Department of Medicine, Surgery and Health Sciences, University of Trieste, Via Licio Giorgieri 5, 34129 Trieste, Italy.
| | - Gianluca Turco
- Department of Medicine, Surgery and Health Sciences, University of Trieste, Piazza dell'Ospitale 1, 34125 Trieste, Italy.
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Yang Y, Zhou Y, Chen J, Kohlgruber T, Smith T, Zheng B, Szymanowski JES, Burns PC, Liu T. Standalone 2-D Nanosheets and the Consequent Hydrogel and Coacervate Phases Formed by 2.5 nm Spherical U 60 Molecular Clusters in Dilute Aqueous Solution. J Phys Chem B 2021; 125:12392-12397. [PMID: 34705443 DOI: 10.1021/acs.jpcb.1c08019] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
Abstract
Unexpected hydrogel and coacervate are observed for dilute (1 mM) uranyl peroxide molecular cluster (Li68K12(OH)20[UO2(O2)(OH)]60, U60) solution in the presence of di- or trivalent salts. We report the mechanism as the formation of anisotropic two-dimensional (2-D) single-layer nanosheets, driven by counterion-mediated attraction due to the size disparity between U60 and small counterions. With weak monovalent cations, the nanosheets are bendable, resulting in hollow, spherical blackberry-type supramolecular assemblies in a homogeneous solution. With extra strong divalent or trivalent cations, the tough, free-standing sheets lead to gelation at ∼1 mM U60. These stiff nanosheets are difficult to bend into spherical blackberry-type structures; instead, they stay in solution and form hydrogel based on their significant excluded volumes. At higher ionic strength, the large, thin filmlike nanosheet structures stack together more compactly and consequently lead to the transition from gel phase to a coacervate phase, another surprise since it was formed without the presence of bulky polycations.
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Affiliation(s)
- Yuqing Yang
- School of Polymer Science and Polymer Engineering, The University of Akron, Akron, Ohio 44325, United States
| | - Yifan Zhou
- School of Polymer Science and Polymer Engineering, The University of Akron, Akron, Ohio 44325, United States
| | - Jiahui Chen
- School of Polymer Science and Polymer Engineering, The University of Akron, Akron, Ohio 44325, United States
| | - Tsuyoshi Kohlgruber
- Department of Civil Engineering and Geological Sciences, University of Notre Dame, Notre Dame, Indiana 46556, United States
| | - Travis Smith
- School of Polymer Science and Polymer Engineering, The University of Akron, Akron, Ohio 44325, United States
| | - Bowen Zheng
- Copley High School, Akron, Ohio 44321, United States
| | - Jennifer E S Szymanowski
- Department of Civil Engineering and Geological Sciences, University of Notre Dame, Notre Dame, Indiana 46556, United States
| | - Peter C Burns
- Department of Civil Engineering and Geological Sciences, University of Notre Dame, Notre Dame, Indiana 46556, United States
| | - Tianbo Liu
- School of Polymer Science and Polymer Engineering, The University of Akron, Akron, Ohio 44325, United States
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Porrelli D, Mardirossian M, Musciacchio L, Pacor M, Berton F, Crosera M, Turco G. Antibacterial Electrospun Polycaprolactone Membranes Coated with Polysaccharides and Silver Nanoparticles for Guided Bone and Tissue Regeneration. ACS APPLIED MATERIALS & INTERFACES 2021; 13:17255-17267. [PMID: 33822574 DOI: 10.1021/acsami.1c01016] [Citation(s) in RCA: 39] [Impact Index Per Article: 13.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/12/2023]
Abstract
Electrospun polycaprolactone (PCL) membranes have been widely explored in the literature as a solution for several applications in tissue engineering and regenerative medicine. PCL hydrophobicity and its lack of bioactivity drastically limit its use in the medical field. To overcome these drawbacks, many promising strategies have been developed and proposed in the literature. In order to increase the bioactivity of electrospun PCL membranes designed for guided bone and tissue regeneration purposes, in the present work, the membranes were functionalized with a coating of bioactive lactose-modified chitosan (CTL). Since CTL can be used for the synthesis and stabilization of silver nanoparticles, a coating of this compound was employed here to provide antibacterial properties to the membranes. Scanning electron microscopy imaging revealed that the electrospinning process adopted here allowed us to obtain membranes with homogeneous fibers and without defects. Also, PCL membranes retained their mechanical properties after several weeks of aging in simulated body fluid, representing a valid support for cell growth and tissue development. CTL adsorption on membranes was investigated by fluorescence microscopy using fluorescein-labeled CTL, resulting in a homogeneous and slow release over time. Inductively coupled plasma-mass spectrometry was used to analyze the release of silver, which was shown to be stably bonded to the CTL coating and to be slowly released over time. The CTL coating improved MG63 osteoblast adhesion and proliferation on membranes. On the other hand, the presence of silver nanoparticles discouraged biofilm formation by Pseudomonas aeruginosa and Staphylococcus aureus without being cytotoxic. Overall, the stability and the biological and antibacterial properties make these membranes a valid and versatile material for applications in guided tissue regeneration and in other biomedical fields like wound healing.
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Affiliation(s)
- Davide Porrelli
- Department of Medicine, Surgery and Health Sciences, University of Trieste, Piazza dell'Ospitale 1, 34129 Trieste, Italy
| | - Mario Mardirossian
- Department of Medicine, Surgery and Health Sciences, University of Trieste, Piazza dell'Ospitale 1, 34129 Trieste, Italy
| | - Luigi Musciacchio
- Department of Medicine, Surgery and Health Sciences, University of Trieste, Piazza dell'Ospitale 1, 34129 Trieste, Italy
| | - Micol Pacor
- Department of Medicine, Surgery and Health Sciences, University of Trieste, Piazza dell'Ospitale 1, 34129 Trieste, Italy
| | - Federico Berton
- Department of Medicine, Surgery and Health Sciences, University of Trieste, Piazza dell'Ospitale 1, 34129 Trieste, Italy
| | - Matteo Crosera
- Department of Chemical and Pharmaceutical Sciences, University of Trieste, Via Licio Giorgieri 1, 34127 Trieste, Italy
| | - Gianluca Turco
- Department of Medicine, Surgery and Health Sciences, University of Trieste, Piazza dell'Ospitale 1, 34129 Trieste, Italy
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Sacco P, Furlani F, Marfoglia A, Cok M, Pizzolitto C, Marsich E, Donati I. Temporary/Permanent Dual Cross‐Link Gels Formed of a Bioactive Lactose‐Modified Chitosan. Macromol Biosci 2020; 20:e2000236. [DOI: 10.1002/mabi.202000236] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/09/2020] [Revised: 09/09/2020] [Indexed: 01/09/2023]
Affiliation(s)
- Pasquale Sacco
- Department of Life Sciences University of Trieste Via Licio Giorgieri 5 Trieste I‐34127 Italy
| | - Franco Furlani
- Department of Life Sciences University of Trieste Via Licio Giorgieri 5 Trieste I‐34127 Italy
| | - Andrea Marfoglia
- Department of Life Sciences University of Trieste Via Licio Giorgieri 5 Trieste I‐34127 Italy
| | - Michela Cok
- Department of Life Sciences University of Trieste Via Licio Giorgieri 5 Trieste I‐34127 Italy
| | - Chiara Pizzolitto
- Department of Medicine, Surgery and Health Sciences University of Trieste Piazza dell'Ospitale 1 Trieste I‐34129 Italy
| | - Eleonora Marsich
- Department of Medicine, Surgery and Health Sciences University of Trieste Piazza dell'Ospitale 1 Trieste I‐34129 Italy
| | - Ivan Donati
- Department of Life Sciences University of Trieste Via Licio Giorgieri 5 Trieste I‐34127 Italy
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Pizzolitto C, Cok M, Asaro F, Scognamiglio F, Marsich E, Lopez F, Donati I, Sacco P. On the Mechanism of Genipin Binding to Primary Amines in Lactose-Modified Chitosan at Neutral pH. Int J Mol Sci 2020; 21:E6831. [PMID: 32957651 PMCID: PMC7554727 DOI: 10.3390/ijms21186831] [Citation(s) in RCA: 9] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/12/2020] [Revised: 09/14/2020] [Accepted: 09/15/2020] [Indexed: 01/22/2023] Open
Abstract
The present manuscript deals with the elucidation of the mechanism of genipin binding by primary amines at neutral pH. UV-VIS and CD measurements both in the presence of oxygen and in oxygen-depleted conditions, combined with computational analyses, led to propose a novel mechanism for the formation of genipin derivatives. The indications collected with chiral and achiral primary amines allowed interpreting the genipin binding to a lactose-modified chitosan (CTL or Chitlac), which is soluble at all pH values. Two types of reaction and their kinetics were found in the presence of oxygen: (i) an interchain reticulation, which involves two genipin molecules and two polysaccharide chains, and (ii) a binding of one genipin molecule to the polymer chain without chain-chain reticulation. The latter evolves in additional interchain cross-links, leading to the formation of the well-known blue iridoid-derivatives.
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Affiliation(s)
- Chiara Pizzolitto
- Department of Medical, Surgical, and Health Sciences, University of Trieste, piazza dell’Ospitale 1, 34127 Trieste, Italy; (C.P.); (F.S.); (E.M.)
| | - Michela Cok
- Department of Life Sciences, University of Trieste, via Licio Giorgieri 5, 34127 Trieste, Italy; (M.C.); (I.D.)
| | - Fioretta Asaro
- Department of Chemical and Pharmaceutical Sciences, University of Trieste, via Licio Giorgieri 1, 34127 Trieste, Italy;
| | - Francesca Scognamiglio
- Department of Medical, Surgical, and Health Sciences, University of Trieste, piazza dell’Ospitale 1, 34127 Trieste, Italy; (C.P.); (F.S.); (E.M.)
| | - Eleonora Marsich
- Department of Medical, Surgical, and Health Sciences, University of Trieste, piazza dell’Ospitale 1, 34127 Trieste, Italy; (C.P.); (F.S.); (E.M.)
| | - Francesco Lopez
- Department of Agricultural, Environmental and Food Sciences (DiAAA), University of Molise, Via De Sanctis, I-86100 Campobasso, Italy;
| | - Ivan Donati
- Department of Life Sciences, University of Trieste, via Licio Giorgieri 5, 34127 Trieste, Italy; (M.C.); (I.D.)
| | - Pasquale Sacco
- Department of Life Sciences, University of Trieste, via Licio Giorgieri 5, 34127 Trieste, Italy; (M.C.); (I.D.)
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9
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Techno-functional characterization of chitosan nanoparticles prepared through planetary ball milling. Int J Biol Macromol 2020; 154:166-172. [DOI: 10.1016/j.ijbiomac.2020.03.034] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/14/2020] [Revised: 02/28/2020] [Accepted: 03/05/2020] [Indexed: 11/20/2022]
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Vecchies F, Sacco P, Marsich E, Cinelli G, Lopez F, Donati I. Binary Solutions of Hyaluronan and Lactose-Modified Chitosan: The Influence of Experimental Variables in Assembling Complex Coacervates. Polymers (Basel) 2020; 12:E897. [PMID: 32294992 PMCID: PMC7240600 DOI: 10.3390/polym12040897] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/27/2020] [Revised: 04/10/2020] [Accepted: 04/11/2020] [Indexed: 11/29/2022] Open
Abstract
A miscibility study between oppositely charged polyelectrolytes, namely hyaluronic acid and a lactose-modified chitosan, is here reported. Experimental variables such as polymers' weight ratios, pH values, ionic strengths and hyaluronic acid molecular weights were considered. Transmittance analyses demonstrated the mutual solubility of the two biopolymers at a neutral pH. The onset of the liquid-liquid phase separation due to electrostatic interactions between the two polymers was detected at pH 4.5, and it was found to be affected by the overall ionic strength, the modality of mixing and the polymers' weight ratio. Thorough Dynamic Light Scattering (DLS) measurements were performed to check the quality of the formed coacervates by investigating their dimensions, homogeneity and surface charge. The whole DLS results highlighted the influence of the hyaluronic acid molecular weight in affecting coacervates' dispersity and size.
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Affiliation(s)
- Federica Vecchies
- Department of Life Science, University of Trieste, Via Licio Giorgieri, 5, 34127 Trieste, Italy; (F.V.); (I.D.)
| | - Pasquale Sacco
- Department of Life Science, University of Trieste, Via Licio Giorgieri, 5, 34127 Trieste, Italy; (F.V.); (I.D.)
| | - Eleonora Marsich
- Department of Medicine, Surgery, and Health Sciences, University of Trieste, Piazza dell’Ospitale 1, I-34129 Trieste, Italy;
| | - Giuseppe Cinelli
- Department of Agricultural, Environmental and Food Sciences (DiAAA), Università degli Studi del Molise, Via De Sanctis, I-86100 Campobasso, Italy; (G.C.); (F.L.)
| | - Francesco Lopez
- Department of Agricultural, Environmental and Food Sciences (DiAAA), Università degli Studi del Molise, Via De Sanctis, I-86100 Campobasso, Italy; (G.C.); (F.L.)
| | - Ivan Donati
- Department of Life Science, University of Trieste, Via Licio Giorgieri, 5, 34127 Trieste, Italy; (F.V.); (I.D.)
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Sacco P, Cok M, Scognamiglio F, Pizzolitto C, Vecchies F, Marfoglia A, Marsich E, Donati I. Glycosylated-Chitosan Derivatives: A Systematic Review. Molecules 2020; 25:E1534. [PMID: 32230971 PMCID: PMC7180478 DOI: 10.3390/molecules25071534] [Citation(s) in RCA: 18] [Impact Index Per Article: 4.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/02/2020] [Revised: 03/25/2020] [Accepted: 03/26/2020] [Indexed: 12/31/2022] Open
Abstract
Chitosan derivatives, and more specifically, glycosylated derivatives, are nowadays attracting much attention within the scientific community due to the fact that this set of engineered polysaccharides finds application in different sectors, spanning from food to the biomedical field. Overcoming chitosan (physical) limitations or grafting biological relevant molecules, to mention a few, represent two cardinal strategies to modify parent biopolymer; thereby, synthetizing high added value polysaccharides. The present review is focused on the introduction of oligosaccharide side chains on the backbone of chitosan. The synthetic aspects and the effect on physical-chemical properties of such modifications are discussed. Finally, examples of potential applications in biomaterials design and drug delivery of these novel modified chitosans are disclosed.
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Affiliation(s)
- Pasquale Sacco
- Department of Life Sciences, University of Trieste, Via Licio Giorgieri 5, I-34127 Trieste, Italy; (P.S.); (M.C.); (F.V.); (A.M.)
| | - Michela Cok
- Department of Life Sciences, University of Trieste, Via Licio Giorgieri 5, I-34127 Trieste, Italy; (P.S.); (M.C.); (F.V.); (A.M.)
| | - Francesca Scognamiglio
- Department of Medicine, Surgery and Health Sciences, University of Trieste, Piazza dell’Ospitale 1, I-34129 Trieste, Italy; (F.S.); (C.P.); (E.M.)
| | - Chiara Pizzolitto
- Department of Medicine, Surgery and Health Sciences, University of Trieste, Piazza dell’Ospitale 1, I-34129 Trieste, Italy; (F.S.); (C.P.); (E.M.)
| | - Federica Vecchies
- Department of Life Sciences, University of Trieste, Via Licio Giorgieri 5, I-34127 Trieste, Italy; (P.S.); (M.C.); (F.V.); (A.M.)
| | - Andrea Marfoglia
- Department of Life Sciences, University of Trieste, Via Licio Giorgieri 5, I-34127 Trieste, Italy; (P.S.); (M.C.); (F.V.); (A.M.)
| | - Eleonora Marsich
- Department of Medicine, Surgery and Health Sciences, University of Trieste, Piazza dell’Ospitale 1, I-34129 Trieste, Italy; (F.S.); (C.P.); (E.M.)
| | - Ivan Donati
- Department of Life Sciences, University of Trieste, Via Licio Giorgieri 5, I-34127 Trieste, Italy; (P.S.); (M.C.); (F.V.); (A.M.)
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Characterization of Chitosan/Hyaluronan Complex Coacervates Assembled by Varying Polymers Weight Ratio and Chitosan Physical-Chemical Composition. COLLOIDS AND INTERFACES 2020. [DOI: 10.3390/colloids4010012] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 12/18/2022]
Abstract
Herein, we synthetized and characterized polysaccharide-based complex coacervates starting from two water-soluble biopolymers, i.e., hydrochloride chitosans and sodium hyaluronan. We used chitosans encompassing a range of molecular weights from 30,000 to 400,000 and showing different fraction of acetylated units (i.e., FA = 0.16, 0.46, and 0.63). This set of chitosans was mixed with a low molecular weight hyaluronan to promote electrostatic interactions. Resulting colloids were analyzed in terms of size, polydispersity and surface charge by Dynamic Light Scattering. The weight ratio between the two polyelectrolytes was studied as additional parameter influencing the liquid-liquid phase separation. Main results include the following: the polymers weight ratio was fundamental in dictating the colloids surface charge, whereas chitosan physical-chemical features influenced the dimension and homogeneity of colloids. This contribution presents additional understanding of the complex coacervation between these two oppositely charged polysaccharides, with the potential translation of present system in food and biomedical sectors.
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On the Formation and Stability of Chitosan/Hyaluronan-Based Complex Coacervates. MOLECULES (BASEL, SWITZERLAND) 2020; 25:molecules25051071. [PMID: 32121005 PMCID: PMC7179103 DOI: 10.3390/molecules25051071] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 01/28/2020] [Revised: 02/18/2020] [Accepted: 02/24/2020] [Indexed: 02/07/2023]
Abstract
This contribution is aimed at extending our previous findings on the formation and stability of chitosan/hyaluronan-based complex coacervates. Colloids are herewith formed by harnessing electrostatic interactions between the two polyelectrolytes. The presence of tiny amounts of the multivalent anion tripolyphosphate (TPP) in the protocol synthesis serves as an adjuvant “point-like” cross-linker for chitosan. Hydrochloride chitosans at different viscosity average molar mass, Mv¯, in the range 10,000–400,000 g/mol, and fraction of acetylated units, FA, (0.16, 0.46 and 0.63) were selected to fabricate a large library of formulations. Concepts such as coacervate size, surface charge and homogeneity in relation to chitosan variables are herein disclosed. The stability of coacervates in Phosphate Buffered Saline (PBS) was verified by means of scattering techniques, i.e., Dynamic Light Scattering (DLS) and Small-Angle X-ray Scattering (SAXS). The conclusions from this set of experiments are the following: (i) a subtle equilibrium between chitosan FA and Mv¯ does exist in ensuring colloidal stability; (ii) once diluted in PBS, osmotic swelling-driven forces trigger the enlargement of the polymeric mesh with an ensuing increase of coacervate size and porosity.
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14
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N-isopropyl chitosan. A pH- and thermo-responsive polysaccharide for gel formation. Carbohydr Polym 2020; 230:115641. [DOI: 10.1016/j.carbpol.2019.115641] [Citation(s) in RCA: 15] [Impact Index Per Article: 3.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/18/2019] [Revised: 10/07/2019] [Accepted: 11/18/2019] [Indexed: 12/31/2022]
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15
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Maiyo F, Singh M. Folate-Targeted mRNA Delivery Using Chitosan-Functionalized Selenium Nanoparticles: Potential in Cancer Immunotherapy. Pharmaceuticals (Basel) 2019; 12:E164. [PMID: 31690043 PMCID: PMC6958489 DOI: 10.3390/ph12040164] [Citation(s) in RCA: 40] [Impact Index Per Article: 8.0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/03/2019] [Revised: 10/19/2019] [Accepted: 10/24/2019] [Indexed: 12/13/2022] Open
Abstract
Systemic messenger RNA (mRNA) delivery, although still in its infancy, holds immense potential for application in cancer vaccination and immunotherapy. Its advantages over DNA transfection make it attractive in applications where transient expression is desired. However, this has proved challenging due to mRNA's instability and susceptibility to degradation. Selenium is important for immune function and modulation, with selenium nanoparticles (SeNPs) finding a niche in biomedicine as drug delivery vehicles, owing to their biocompatibility, low toxicity, and biodegradability. In this investigation, we synthesized chitosan-coated SeNPs with a folic acid targeting moiety for Fluc mRNA delivery to cancer cells in vitro. Synthesized SeNPs were stable and well dispersed, and ranged from 59 to 102 nm in size. Nanoparticles bound and protected mRNA from RNase degradation, while exhibiting low cytotoxicity in the human embryonic kidney (HEK293), breast adenocarcinoma (MCF-7), and nasopharyngeal (KB) cells in culture. Moderate cytotoxicity evidenced in the colorectal carcinoma (Caco-2) and colon carcinoma (HT-29) cells was attributed to apoptosis induction by selenium, as confirmed by acridine orange/ethidium bromide staining. Selenium uptake studies corroborated the transfection results, where significant transgene expression was evident for the overexpressed folate receptor-positive KB cells when compared to the other cells with less or no folate receptors.
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Affiliation(s)
- Fiona Maiyo
- Nano-Gene and Drug Delivery Group, Discipline of Biochemistry, University of KwaZulu-Natal, Private Bag X54001, Durban 4000, South Africa.
| | - Moganavelli Singh
- Nano-Gene and Drug Delivery Group, Discipline of Biochemistry, University of KwaZulu-Natal, Private Bag X54001, Durban 4000, South Africa.
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Furlani F, Sacco P, Cok M, de Marzo G, Marsich E, Paoletti S, Donati I. Biomimetic, Multiresponsive, and Self-Healing Lactose-Modified Chitosan (CTL)-Based Gels Formed via Competitor-Assisted Mechanism. ACS Biomater Sci Eng 2019; 5:5539-5547. [DOI: 10.1021/acsbiomaterials.9b01256] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/12/2023]
Affiliation(s)
- Franco Furlani
- Department of Life Sciences, University of Trieste, Via L. Giorgieri 5, I-34127 Trieste, Italy
| | - Pasquale Sacco
- Department of Life Sciences, University of Trieste, Via L. Giorgieri 5, I-34127 Trieste, Italy
| | - Michela Cok
- Department of Life Sciences, University of Trieste, Via L. Giorgieri 5, I-34127 Trieste, Italy
| | - Gaia de Marzo
- Department of Life Sciences, University of Trieste, Via L. Giorgieri 5, I-34127 Trieste, Italy
| | - Eleonora Marsich
- Department of Medicine, Surgery, and Health Sciences, University of Trieste, Piazza dell’Ospitale 1, I-34129 Trieste, Italy
| | - Sergio Paoletti
- Department of Life Sciences, University of Trieste, Via L. Giorgieri 5, I-34127 Trieste, Italy
| | - Ivan Donati
- Department of Life Sciences, University of Trieste, Via L. Giorgieri 5, I-34127 Trieste, Italy
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17
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Sacco P, Furlani F, Paoletti S, Donati I. pH-Assisted Gelation of Lactose-Modified Chitosan. Biomacromolecules 2019; 20:3070-3075. [DOI: 10.1021/acs.biomac.9b00636] [Citation(s) in RCA: 19] [Impact Index Per Article: 3.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
Affiliation(s)
- Pasquale Sacco
- Department of Life Sciences, University of Trieste, Via Licio Giorgieri 5, I-34127 Trieste, Italy
| | - Franco Furlani
- Department of Life Sciences, University of Trieste, Via Licio Giorgieri 5, I-34127 Trieste, Italy
| | - Sergio Paoletti
- Department of Life Sciences, University of Trieste, Via Licio Giorgieri 5, I-34127 Trieste, Italy
| | - Ivan Donati
- Department of Life Sciences, University of Trieste, Via Licio Giorgieri 5, I-34127 Trieste, Italy
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18
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Liu Q, Sacco P, Marsich E, Furlani F, Arib C, Djaker N, Lamy de la Chapelle M, Donati I, Spadavecchia J. Lactose-Modified Chitosan Gold(III)-PEGylated Complex-Bioconjugates: From Synthesis to Interaction with Targeted Galectin-1 Protein. Bioconjug Chem 2018; 29:3352-3361. [PMID: 30215508 DOI: 10.1021/acs.bioconjchem.8b00520] [Citation(s) in RCA: 26] [Impact Index Per Article: 4.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
Abstract
Galectins (Gal) are a family of glycan-binding proteins characterized by their affinity for β-galactosides. Galectin-1 (Gal-1), a dimeric lectin with two galactoside-binding sites, regulates cancer progression and immune responses. Coordination chemistry has been engaged to develop versatile multivalent neoglycoconjugates for binding Gal-1. In this study we report a fast and original method to synthesize hybrid gold nanoparticles in which a hydrochloride lactose-modified chitosan, named CTL, is mixed with dicarboxylic acid-terminated polyethylene glycol (PEG), leading to shell-like hybrid polymer-sugar-metal nanoparticles (CTL-PEG-AuNPs). The aim of this paper is to preliminarily study the interaction of the CTL-PEG-AuNPs with a target protein, namely, Gal-1, under specific conditions. The molecular interaction has been measured by Transmission Electron Microscopy (TEM), UV-vis, and Raman Spectroscopy on a large range of Gal-1 concentrations (from 0 to 10-12 M). We observed that the interaction was strongly dependent on the Gal-1 concentration at the surface of the gold nanoparticles.
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Affiliation(s)
- Qiqian Liu
- CNRS, UMR 7244, CSPBAT, Laboratoire de Chimie, Structures et Propriétés de Biomateriaux et d'Agents Therapeutiques , Université Paris 13, Sorbonne Paris Cité , 93000 Bobigny , France
| | - Pasquale Sacco
- Department of Life Sciences , University of Trieste , Via L. Giorgieri 5 , I-34127 Trieste , Italy
| | - Eleonora Marsich
- Department of Medicine, Surgery and Health Sciences , University of Trieste , Piazza dell'Ospitale 1 , I-34129 Trieste , Italy
| | - Franco Furlani
- Department of Life Sciences , University of Trieste , Via L. Giorgieri 5 , I-34127 Trieste , Italy
| | - Celia Arib
- CNRS, UMR 7244, CSPBAT, Laboratoire de Chimie, Structures et Propriétés de Biomateriaux et d'Agents Therapeutiques , Université Paris 13, Sorbonne Paris Cité , 93000 Bobigny , France
| | - Nadia Djaker
- CNRS, UMR 7244, CSPBAT, Laboratoire de Chimie, Structures et Propriétés de Biomateriaux et d'Agents Therapeutiques , Université Paris 13, Sorbonne Paris Cité , 93000 Bobigny , France
| | - Marc Lamy de la Chapelle
- Institut des Molécules et Matériaux du Mans (IMMM - UMR CNRS 6283) , Le Mans Université , Avenue Olivier Messiaen , 72085 Le Mans cedex 9, France.,Department of Clinical Laboratory Medicine, Southwest Hospital , Third Military Medical University , 400038 Chongqing , China
| | - Ivan Donati
- Department of Life Sciences , University of Trieste , Via L. Giorgieri 5 , I-34127 Trieste , Italy
| | - Jolanda Spadavecchia
- CNRS, UMR 7244, CSPBAT, Laboratoire de Chimie, Structures et Propriétés de Biomateriaux et d'Agents Therapeutiques , Université Paris 13, Sorbonne Paris Cité , 93000 Bobigny , France
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19
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Vecchies F, Sacco P, Decleva E, Menegazzi R, Porrelli D, Donati I, Turco G, Paoletti S, Marsich E. Complex Coacervates between a Lactose-Modified Chitosan and Hyaluronic Acid as Radical-Scavenging Drug Carriers. Biomacromolecules 2018; 19:3936-3944. [PMID: 30204431 DOI: 10.1021/acs.biomac.8b00863] [Citation(s) in RCA: 29] [Impact Index Per Article: 4.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/20/2022]
Abstract
Complex coacervation of two oppositely charged polysaccharides, namely a lactose-modified chitosan (CTL) and hyaluronan (HA), was investigated in this study. Coacervates of the two polysaccharides were prepared by drop-by-drop injection of HA into CTL. Transmittance and dynamic light scattering (DLS) measurements in combination with TEM analyses demonstrated the formation of spheroidal colloids in the nano-/microsize range showing good homogeneity. Strikingly, the presence of 150 mM supporting NaCl did not hamper the colloid formation. Stability studies on selected formulations demonstrated that HA/CTL coacervates were stable up to 3 weeks at 37 °C and behaved as pH-responsive colloids since transition from entangled to disentangled chains was attained for a proper pH range. The possibility of freeze-drying the coacervates for storage purposes and the ability of encapsulating selected payloads were investigated as well, for two values of the fraction of the lactitol side-chain substitution (FL). Finally, biological tests using human neutrophils were undertaken at acidic pH value (pH = 6.0): under such experimental conditions, akin to those frequently occurring in the inflammatory microenvironment, coacervates scavenged reactive oxygen species (ROS) generated by these cells in basal conditions. Given the well documented bioactivity of CTL with respect to chitosan toward cartilage regeneration, these findings point to a possible application of HA/CTL-based colloids as scavenging and bioactive carriers for the delivery of therapeutic molecules at confined inflamed sites such as knee joints.
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Affiliation(s)
- Federica Vecchies
- Department of Life Sciences , University of Trieste , Via L. Giorgieri 5 , I-34127 Trieste , Italy
| | - Pasquale Sacco
- Department of Life Sciences , University of Trieste , Via L. Giorgieri 5 , I-34127 Trieste , Italy
| | - Eva Decleva
- Department of Life Sciences , University of Trieste , Via L. Giorgieri 5 , I-34127 Trieste , Italy
| | - Renzo Menegazzi
- Department of Life Sciences , University of Trieste , Via L. Giorgieri 5 , I-34127 Trieste , Italy
| | - Davide Porrelli
- Department of Medicine, Surgery and Health Sciences , University of Trieste , Piazza dell'Ospitale 1 , I-34125 Trieste , Italy
| | - Ivan Donati
- Department of Life Sciences , University of Trieste , Via L. Giorgieri 5 , I-34127 Trieste , Italy
| | - Gianluca Turco
- Department of Medicine, Surgery and Health Sciences , University of Trieste , Piazza dell'Ospitale 1 , I-34125 Trieste , Italy
| | - Sergio Paoletti
- Department of Life Sciences , University of Trieste , Via L. Giorgieri 5 , I-34127 Trieste , Italy
| | - Eleonora Marsich
- Department of Medicine, Surgery and Health Sciences , University of Trieste , Piazza dell'Ospitale 1 , I-34125 Trieste , Italy
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20
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Sacco P, Furlani F, De Marzo G, Marsich E, Paoletti S, Donati I. Concepts for Developing Physical Gels of Chitosan and of Chitosan Derivatives. Gels 2018; 4:E67. [PMID: 30674843 PMCID: PMC6209275 DOI: 10.3390/gels4030067] [Citation(s) in RCA: 66] [Impact Index Per Article: 11.0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/20/2018] [Accepted: 08/07/2018] [Indexed: 02/06/2023] Open
Abstract
Chitosan macro- and micro/nano-gels have gained increasing attention in recent years, especially in the biomedical field, given the well-documented low toxicity, degradability, and non-immunogenicity of this unique biopolymer. In this review we aim at recapitulating the recent gelling concepts for developing chitosan-based physical gels. Specifically, we describe how nowadays it is relatively simple to prepare networks endowed with different sizes and shapes simply by exploiting physical interactions, namely (i) hydrophobic effects and hydrogen bonds-mostly governed by chitosan chemical composition-and (ii) electrostatic interactions, mainly ensured by physical/chemical chitosan features, such as the degree of acetylation and molecular weight, and external parameters, such as pH and ionic strength. Particular emphasis is dedicated to potential applications of this set of materials, especially in tissue engineering and drug delivery sectors. Lastly, we report on chitosan derivatives and their ability to form gels. Additionally, we discuss the recent findings on a lactose-modified chitosan named Chitlac, which has proved to form attractive gels both at the macro- and at the nano-scale.
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Affiliation(s)
- Pasquale Sacco
- Department of Life Sciences, University of Trieste, Via Licio Giorgieri 5, I-34127 Trieste, Italy.
| | - Franco Furlani
- Department of Life Sciences, University of Trieste, Via Licio Giorgieri 5, I-34127 Trieste, Italy.
| | - Gaia De Marzo
- Department of Life Sciences, University of Trieste, Via Licio Giorgieri 5, I-34127 Trieste, Italy.
| | - Eleonora Marsich
- Department of Medicine, Surgery and Health Sciences, University of Trieste, Piazza dell'Ospitale 1, I-34125 Trieste, Italy.
| | - Sergio Paoletti
- Department of Life Sciences, University of Trieste, Via Licio Giorgieri 5, I-34127 Trieste, Italy.
| | - Ivan Donati
- Department of Life Sciences, University of Trieste, Via Licio Giorgieri 5, I-34127 Trieste, Italy.
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21
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Mohammed MA, Syeda JTM, Wasan KM, Wasan EK. An Overview of Chitosan Nanoparticles and Its Application in Non-Parenteral Drug Delivery. Pharmaceutics 2017; 9:E53. [PMID: 29156634 PMCID: PMC5750659 DOI: 10.3390/pharmaceutics9040053] [Citation(s) in RCA: 655] [Impact Index Per Article: 93.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/27/2017] [Revised: 11/14/2017] [Accepted: 11/16/2017] [Indexed: 12/11/2022] Open
Abstract
The focus of this review is to provide an overview of the chitosan based nanoparticles for various non-parenteral applications and also to put a spotlight on current research including sustained release and mucoadhesive chitosan dosage forms. Chitosan is a biodegradable, biocompatible polymer regarded as safe for human dietary use and approved for wound dressing applications. Chitosan has been used as a carrier in polymeric nanoparticles for drug delivery through various routes of administration. Chitosan has chemical functional groups that can be modified to achieve specific goals, making it a polymer with a tremendous range of potential applications. Nanoparticles (NP) prepared with chitosan and chitosan derivatives typically possess a positive surface charge and mucoadhesive properties such that can adhere to mucus membranes and release the drug payload in a sustained release manner. Chitosan-based NP have various applications in non-parenteral drug delivery for the treatment of cancer, gastrointestinal diseases, pulmonary diseases, drug delivery to the brain and ocular infections which will be exemplified in this review. Chitosan shows low toxicity both in vitro and some in vivo models. This review explores recent research on chitosan based NP for non-parenteral drug delivery, chitosan properties, modification, toxicity, pharmacokinetics and preclinical studies.
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Affiliation(s)
- Munawar A Mohammed
- College of Pharmacy and Nutrition, University of Saskatchewan, Saskatoon, SK S7N 2Z4, Canada.
| | - Jaweria T M Syeda
- College of Pharmacy and Nutrition, University of Saskatchewan, Saskatoon, SK S7N 2Z4, Canada.
| | - Kishor M Wasan
- College of Pharmacy and Nutrition, University of Saskatchewan, Saskatoon, SK S7N 2Z4, Canada.
| | - Ellen K Wasan
- College of Pharmacy and Nutrition, University of Saskatchewan, Saskatoon, SK S7N 2Z4, Canada.
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Sacco P, Furlani F, Cok M, Travan A, Borgogna M, Marsich E, Paoletti S, Donati I. Boric Acid Induced Transient Cross-Links in Lactose-Modified Chitosan (Chitlac). Biomacromolecules 2017; 18:4206-4213. [PMID: 29039653 DOI: 10.1021/acs.biomac.7b01237] [Citation(s) in RCA: 19] [Impact Index Per Article: 2.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
Abstract
The present paper explores the effect of boric acid on Chitlac, a lactose-modified chitosan which had previously shown interesting biological and physical-chemical features. The herewith-reported experimental evidences demonstrated that boric acid binds to Chitlac, producing conformational and association effects on the chitosan derivative. The thermodynamics of boric acid binding to Chitlac was explored by means of 11B NMR, circular dichroism (CD), and UV-vis spectroscopy, while macromolecular effects were investigated by means of viscometry and dynamic light scattering (DLS). The experimental results revealed a chain-chain association when limited amounts of boric acid were added to Chitlac. However, upon exceeding a critical boric acid limit dependent on the polysaccharide concentration, the soluble aggregates disentangle. The rheological behavior of Chitlac upon treatment with boric acid was explored showing a dilatant behavior in conditions of steady flow. An uncommonly high dependence in the scaling law between the zero-shear viscosity and the concentration of Chitlac was found, i.e., η0 ∝ CCTL5.8, pointing to interesting potential implications of the present system in biomaterials development.
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Affiliation(s)
- Pasquale Sacco
- Department of Life Sciences, University of Trieste , Via Licio Giorgieri 5, I-34127 Trieste, Italy
| | - Franco Furlani
- Department of Life Sciences, University of Trieste , Via Licio Giorgieri 5, I-34127 Trieste, Italy
| | - Michela Cok
- Department of Life Sciences, University of Trieste , Via Licio Giorgieri 5, I-34127 Trieste, Italy
| | - Andrea Travan
- Department of Life Sciences, University of Trieste , Via Licio Giorgieri 5, I-34127 Trieste, Italy
| | - Massimiliano Borgogna
- Department of Life Sciences, University of Trieste , Via Licio Giorgieri 5, I-34127 Trieste, Italy
| | - Eleonora Marsich
- Department of Medical, Surgical, and Health Sciences, University of Trieste , Piazza dell'Ospitale 1, I-34127 Trieste, Italy
| | - Sergio Paoletti
- Department of Life Sciences, University of Trieste , Via Licio Giorgieri 5, I-34127 Trieste, Italy
| | - Ivan Donati
- Department of Life Sciences, University of Trieste , Via Licio Giorgieri 5, I-34127 Trieste, Italy
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