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Cruz-Maya I, Schiavone C, Ferraro R, Renkler NZ, Caserta S, Guarino V. Designing Advanced Drug Delivery Systems: Core-Shell Alginate Particles through Electro-Fluid Dynamic Atomization. Pharmaceutics 2024; 16:193. [PMID: 38399251 PMCID: PMC10893386 DOI: 10.3390/pharmaceutics16020193] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/23/2023] [Revised: 01/19/2024] [Accepted: 01/26/2024] [Indexed: 02/25/2024] Open
Abstract
Innovations in drug delivery systems are crucial for enhancing therapeutic efficiency. Our research presents a novel approach based on using electro-fluid dynamic atomization (EFDA) to fabricate core-shell monophasic particles (CSMp) from sodium alginate blends of varying molecular weights. This study explores the morphological characteristics of these particles in relation to material properties and process conditions, highlighting their potential in drug delivery applications. A key aspect of our work is the development of a mathematical model that simulates the release kinetics of small molecules, specifically sodium diclofenac. By assessing the diffusion properties of different molecules and gel formulations through transport and rheological models, we have created a predictive tool for evaluating the efficiency of these particles in drug delivery. Our findings underscore two critical, independent parameters for optimizing drug release: the external shell thickness and the diffusivity ratios within the dual layers. This allows for precise control over the timing and intensity of the release profile. This study advances our understanding of EFDA in the fabrication of CSMp and offers promising avenues for enhancing drug delivery systems by tailoring release profiles through particle characteristic manipulation.
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Affiliation(s)
- Iriczalli Cruz-Maya
- Institute for Polymers, Composites and Biomaterials, National Research Council, 80125 Naples, Italy; (I.C.-M.); (N.Z.R.); (V.G.)
| | - Carmine Schiavone
- Department of Chemical, Materials and Industrial Production Engineering, University of Naples Federico II, 80125 Naples, Italy; (C.S.); (R.F.)
- Mathematics in Medicine Program, Department of Medicine, Houston Methodist Research Institute, Houston, TX 77030, USA
| | - Rosalia Ferraro
- Department of Chemical, Materials and Industrial Production Engineering, University of Naples Federico II, 80125 Naples, Italy; (C.S.); (R.F.)
- CEINGE Advanced Biotechnologies, 80131 Napoli, Italy
| | - Nergis Zeynep Renkler
- Institute for Polymers, Composites and Biomaterials, National Research Council, 80125 Naples, Italy; (I.C.-M.); (N.Z.R.); (V.G.)
- Department of Chemical, Materials and Industrial Production Engineering, University of Naples Federico II, 80125 Naples, Italy; (C.S.); (R.F.)
| | - Sergio Caserta
- Department of Chemical, Materials and Industrial Production Engineering, University of Naples Federico II, 80125 Naples, Italy; (C.S.); (R.F.)
- CEINGE Advanced Biotechnologies, 80131 Napoli, Italy
| | - Vincenzo Guarino
- Institute for Polymers, Composites and Biomaterials, National Research Council, 80125 Naples, Italy; (I.C.-M.); (N.Z.R.); (V.G.)
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Cruz-Maya I, Altobelli R, Alvarez-Perez MA, Guarino V. Mineralized Microgels via Electrohydrodynamic Atomization: Optimization and In Vitro Model for Dentin-Pulp Complex. Gels 2023; 9:846. [PMID: 37998935 PMCID: PMC10670945 DOI: 10.3390/gels9110846] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/30/2023] [Revised: 10/20/2023] [Accepted: 10/24/2023] [Indexed: 11/25/2023] Open
Abstract
There is growing interest in the use of micro-sized hydrogels, including bioactive signals, as efficient platforms for tissue regeneration because they are able to mimic cell niche structure and selected functionalities. Herein, it is proposed to optimize bioactive composite microgels via electrohydrodynamic atomization (EHDA) to regenerate the dentin-pulp complex. The addition of disodium phosphate (Na2HPO4) salts as mineral precursors triggered an in situ reaction with divalent ions in solution, thus promoting the encapsulation of different amounts of apatite-like phases. Morphological analysis via image analysis of optical images confirmed a narrow distribution of perfectly rounded particles, with an average diameter ranging from 223 ± 18 μm to 502 ± 64 μm as a function of mineral content and process parameters used. FTIR, TEM, and EDAX analyses confirmed the formation of calcium phosphates with a characteristic Ca/P ratio close to 1.67 and a needle-like crystal shape. In vitro studies-using dental pulp stem cells (DPSCs) in crown sections of natural teeth slices-showed an increase in cell viability until 14 days, recording a decay of proliferation at 21 days, independent on the mineral amount, suggesting that differentiation is started, as confirmed by the increase of ALP activity at 14 days. In this view, mineralized microgels could be successfully used to support in vitro osteogenesis, working as an interesting model to study dental tissue regeneration.
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Affiliation(s)
- Iriczalli Cruz-Maya
- Institute of Polymers, Composites and Biomaterials (IPCB), National Research Council of Italy, Mostra d’Oltremare Pad. 20, Viale J.F. Kennedy 54, 80125 Naples, Italy
- Tissue Bioengineering Laboratory of DEPeI-FO, Universidad Nacional Autonoma de Mexico (UNAM), Mexico City 04510, Mexico;
| | - Rosaria Altobelli
- Institute of Polymers, Composites and Biomaterials (IPCB), National Research Council of Italy, Mostra d’Oltremare Pad. 20, Viale J.F. Kennedy 54, 80125 Naples, Italy
| | - Marco Antonio Alvarez-Perez
- Tissue Bioengineering Laboratory of DEPeI-FO, Universidad Nacional Autonoma de Mexico (UNAM), Mexico City 04510, Mexico;
| | - Vincenzo Guarino
- Institute of Polymers, Composites and Biomaterials (IPCB), National Research Council of Italy, Mostra d’Oltremare Pad. 20, Viale J.F. Kennedy 54, 80125 Naples, Italy
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Serri C, Cruz-Maya I, Bonadies I, Rassu G, Giunchedi P, Gavini E, Guarino V. Green Routes for Bio-Fabrication in Biomedical and Pharmaceutical Applications. Pharmaceutics 2023; 15:1744. [PMID: 37376192 DOI: 10.3390/pharmaceutics15061744] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/28/2023] [Revised: 06/03/2023] [Accepted: 06/12/2023] [Indexed: 06/29/2023] Open
Abstract
In the last decade, significant advances in nanotechnologies, rising from increasing knowledge and refining of technical practices in green chemistry and bioengineering, enabled the design of innovative devices suitable for different biomedical applications. In particular, novel bio-sustainable methodologies are developing to fabricate drug delivery systems able to sagely mix properties of materials (i.e., biocompatibility, biodegradability) and bioactive molecules (i.e., bioavailability, selectivity, chemical stability), as a function of the current demands for the health market. The present work aims to provide an overview of recent developments in the bio-fabrication methods for designing innovative green platforms, emphasizing the relevant impact on current and future biomedical and pharmaceutical applications.
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Affiliation(s)
- Carla Serri
- Department of Medicine, Surgery and Pharmacy, University of Sassari, Via Muroni 23/a, 07100 Sassari, Italy
| | - Iriczalli Cruz-Maya
- Institute of Polymers, Composites and Biomaterials, National Research Council of Italy, Mostra d'Oltremare Pad. 20, V.le J.F. Kennedy 54, 80125 Naples, Italy
| | - Irene Bonadies
- Institute of Polymers, Composites and Biomaterials, National Research Council of Italy, Mostra d'Oltremare Pad. 20, V.le J.F. Kennedy 54, 80125 Naples, Italy
| | - Giovanna Rassu
- Department of Medicine, Surgery and Pharmacy, University of Sassari, Via Muroni 23/a, 07100 Sassari, Italy
| | - Paolo Giunchedi
- Department of Medicine, Surgery and Pharmacy, University of Sassari, Via Muroni 23/a, 07100 Sassari, Italy
| | - Elisabetta Gavini
- Department of Medicine, Surgery and Pharmacy, University of Sassari, Via Muroni 23/a, 07100 Sassari, Italy
| | - Vincenzo Guarino
- Institute of Polymers, Composites and Biomaterials, National Research Council of Italy, Mostra d'Oltremare Pad. 20, V.le J.F. Kennedy 54, 80125 Naples, Italy
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Cruz-Maya I, Zuppolini S, Zarrelli M, Mazzotta E, Borriello A, Malitesta C, Guarino V. Polydopamine-Coated Alginate Microgels: Process Optimization and In Vitro Validation. J Funct Biomater 2022; 14:jfb14010002. [PMID: 36662049 PMCID: PMC9865381 DOI: 10.3390/jfb14010002] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/08/2022] [Revised: 12/13/2022] [Accepted: 12/16/2022] [Indexed: 12/24/2022] Open
Abstract
In the last decade, alginate-based microgels have gained relevant interest as three-dimensional analogues of extracellular matrix, being able to support cell growth and functions. In this study, core-shell microgels were fabricated by self-polymerization of dopamine (DA) molecules under mild oxidation and in situ precipitation of polydopamine (PDA) onto alginate microbeads, processed by electro fluid dynamic atomization. Morphological (optical, SEM) and chemical analyses (ATR-FTIR, XPS) confirmed the presence of PDA macromolecules, distributed onto the microgel surface. Nanoindentation tests also indicated that the PDA coating can influence the biomechanical properties of the microgel surfaces-i.e., σmaxALG = 0.45 mN vs. σmaxALG@PDA = 0.30 mN-thus improving the interface with hMSCs as confirmed by in vitro tests; in particular, protein adsorption and viability tests show a significant increase in adhesion and cell proliferation, strictly related to the presence of PDA. Hence, we concluded that PDA coating contributes to the formation of a friendly interface able to efficiently support cells' activities. In this perspective, core-shell microgels may be suggested as a novel symmetric 3D model to study in vitro cell interactions.
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Affiliation(s)
- Iriczalli Cruz-Maya
- Institute for Polymers, Composites and Biomaterials (IPCB), National Research Council of Italy, V.le J.F. Kennedy 54, 80125 Naples, Italy
| | - Simona Zuppolini
- Institute for Polymers, Composites and Biomaterials (IPCB), National Research Council of Italy, V.le J.F. Kennedy 54, 80125 Naples, Italy
| | - Mauro Zarrelli
- Institute for Polymers, Composites and Biomaterials (IPCB), National Research Council of Italy, V.le J.F. Kennedy 54, 80125 Naples, Italy
| | - Elisabetta Mazzotta
- Laboratory of Analytical Chemistry, Department of Biological and Environmental Sciences and Technologies (Di.S.Te.B.A.), University of Salento, Via Monteroni, 73100 Lecce, Italy
| | - Anna Borriello
- Institute for Polymers, Composites and Biomaterials (IPCB), National Research Council of Italy, V.le J.F. Kennedy 54, 80125 Naples, Italy
- Correspondence: (A.B.); (V.G.)
| | - Cosimino Malitesta
- Laboratory of Analytical Chemistry, Department of Biological and Environmental Sciences and Technologies (Di.S.Te.B.A.), University of Salento, Via Monteroni, 73100 Lecce, Italy
| | - Vincenzo Guarino
- Institute for Polymers, Composites and Biomaterials (IPCB), National Research Council of Italy, V.le J.F. Kennedy 54, 80125 Naples, Italy
- Correspondence: (A.B.); (V.G.)
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Hyaluronic Acid in Biomedical Fields: New Trends from Chemistry to Biomaterial Applications. Int J Mol Sci 2022; 23:ijms232214372. [PMID: 36430855 PMCID: PMC9695447 DOI: 10.3390/ijms232214372] [Citation(s) in RCA: 13] [Impact Index Per Article: 6.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/26/2022] [Revised: 11/15/2022] [Accepted: 11/17/2022] [Indexed: 11/22/2022] Open
Abstract
The aim of this review is to give an updated perspective about the methods for chemical modifications of hyaluronic acid (HA) toward the development of new applications in medical devices and material engineering. After a brief introduction on chemical, structural and biological features of this important natural polysaccharide, the most important methods for chemical and physical modifications are disclosed, discussing both on the formation of new covalent bonds and the interaction with other natural polysaccharides. These strategies are of paramount importance in the production of new medical devices and materials with improved properties. In particular, the use of HA in the development of new materials by means of additive manufacturing techniques as electro fluid dynamics, i.e., electrospinning for micro to nanofibres, and three-dimensional bioprinting is also discussed.
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Cruz-Maya I, Guarino V. 3D Scaffolds Fabrication via Bicomponent Microgels Assembly: Process Optimization and In Vitro Characterization. MICROMACHINES 2022; 13:1726. [PMID: 36296078 PMCID: PMC9607065 DOI: 10.3390/mi13101726] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Subscribe] [Scholar Register] [Received: 09/26/2022] [Revised: 10/06/2022] [Accepted: 10/07/2022] [Indexed: 06/16/2023]
Abstract
In the last decade, different technological approaches have been proposed for the fabrication of 3D models suitable to evaluate in vitro cell response. Among them, electro fluid dynamic atomization (EFDA) belonging to the family of electro-assisted technologies allows for the dropping of polysaccharides and/or proteins solutions to produce micro-scaled hydrogels or microgels with the peculiar features of hydrogel-like materials (i.e., biocompatibility, wettability, swelling). In this work, a method to fabricate 3D scaffolds by the assembly of bicomponent microgels made of sodium alginate and gelatin was proposed. As first step, optical and scanning electron microscopy with the support of image analysis enabled to explore the basic properties of single blocks in terms of correlation between particle morphology and process parameters (i.e., voltage, flow rate, electrode gap, and needle diameter). Chemical analysis via ninhydrin essays and FTIR analysis confirmed the presence of gelatin, mostly retained by physical interactions into the alginate network mediated by electrostatic forces. In vitro tests confirmed the effect of biochemical signals exerted by the protein on the biological response of hMSCs cultured onto the microgels surface. Hence, it is concluded that alginate/gelatin microgels assemblies can efficiently work as 3D scaffolds able to support in vitro cells functions, thus providing a friendly microenvironment to investigate in vitro cell interactions.
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Renkler NZ, Cruz-Maya I, Bonadies I, Guarino V. Electro Fluid Dynamics: A Route to Design Polymers and Composites for Biomedical and Bio-Sustainable Applications. Polymers (Basel) 2022; 14:polym14194249. [PMID: 36236197 PMCID: PMC9572386 DOI: 10.3390/polym14194249] [Citation(s) in RCA: 6] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/15/2022] [Revised: 10/04/2022] [Accepted: 10/05/2022] [Indexed: 12/01/2022] Open
Abstract
In the last two decades, several processes have been explored for the development of micro and/or nanostructured substrates by sagely physically and/or chemically manipulating polymer materials. These processes have to be designed to overcome some of the limitations of the traditional ones in terms of feasibility, reproducibility, and sustainability. Herein, the primary aim of this work is to focus on the enormous potential of using a high voltage electric field to manipulate polymers from synthetic and/or natural sources for the fabrication of different devices based on elementary units, i.e., fibers or particles, with different characteristic sizes—from micro to nanoscale. Firstly, basic principles and working mechanisms will be introduced in order to correlate the effect of selected process parameters (i.e., an applied voltage) on the dimensional features of the structures. Secondly, a comprehensive overview of the recent trends and potential uses of these processes will be proposed for different biomedical and bio-sustainable application areas.
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Salama A, Abouzeid RE, Owda ME, Cruz-Maya I, Guarino V. Cellulose-Silver Composites Materials: Preparation and Applications. Biomolecules 2021; 11:1684. [PMID: 34827681 PMCID: PMC8615592 DOI: 10.3390/biom11111684] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/13/2021] [Revised: 11/04/2021] [Accepted: 11/07/2021] [Indexed: 01/05/2023] Open
Abstract
Cellulose has received great attention owing to its distinctive structural features, exciting physico-chemical properties, and varied applications. The combination of cellulose and silver nanoparticles currently allows to fabricate different promising functional nanocomposites with unique properties. The current work offers a wide and accurate overview of the preparation methods of cellulose-silver nanocomposite materials, also providing a punctual discussion of their potential applications in different fields (i.e., wound dressing, high-performance textiles, electronics, catalysis, sensing, antimicrobial filtering, and packaging). In particular, different preparation methods of cellulose/silver nanocomposites based on in situ thermal reduction, blending and dip-coating, or additive manufacturing techniques were thoroughly described. Hence, the correlations among the structure and physico-chemical properties in cellulose/silver nanocomposites were investigated in order to better control the final properties of the nanocomposites and analyze the key points and limitations of the current manufacturing approaches.
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Affiliation(s)
- Ahmed Salama
- Cellulose and Paper Department, National Research Centre, 33 El-Bohouth St., Dokki, Giza 12622, Egypt;
| | - Ragab E. Abouzeid
- Cellulose and Paper Department, National Research Centre, 33 El-Bohouth St., Dokki, Giza 12622, Egypt;
| | - Medhat E. Owda
- Chemistry Department, Faculty of Science, Al-Azhar University, Nasr City, Cairo 11884, Egypt;
| | - Iriczalli Cruz-Maya
- Institute of Polymers, Composite and Biomaterials, National Research Council of Italy, Mostra D’Oltremare, Pad 20, V. J.F. Kennedy 54, 80125 Naples, Italy;
| | - Vincenzo Guarino
- Institute of Polymers, Composite and Biomaterials, National Research Council of Italy, Mostra D’Oltremare, Pad 20, V. J.F. Kennedy 54, 80125 Naples, Italy;
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Salama A, Abou-Zeid RE, Cruz-Maya I, Guarino V. Soy protein hydrolysate grafted cellulose nanofibrils with bioactive signals for bone repair and regeneration. Carbohydr Polym 2020; 229:115472. [PMID: 31826419 DOI: 10.1016/j.carbpol.2019.115472] [Citation(s) in RCA: 22] [Impact Index Per Article: 5.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/26/2019] [Revised: 08/29/2019] [Accepted: 10/13/2019] [Indexed: 01/10/2023]
Abstract
TEMPO oxidized cellulose nanofibers (T-CNF) were prepared from cellulose pulp which is extracted from bagasse. Soy protein hydrolysate (SPH) was grafted on T-CNF via amidation of carboxylic groups. Biomineralization was, then, assessed via calcium phosphates (CaP) precipitation in twice-simulated body fluid until formation of a new bioactive material. Protein was efficiently grafted without alteration of morphology and nanofibrils packing as reported by Fourier Transform infrared analysis /X Ray Diffraction /Scanning and Transmission Electron Microscopy / Atomic Force Microscopy. Highly crystalline calcium phosphate deposits - ca. 22.1% - were detected, with a Ca/P ratio equal to 1.63, in agreement with native bone apatite composition. In vitro response of human Mesenchymal Stem Cells confirmed the biocompatibility. No significant differences in terms of cell adhesion were recognized while a significant increase in cell proliferation was detected until 7 days. The presence of calcium phosphates tends to cover the nanofibrillar pattern, inducing the inhibition of cell proliferation and promoting the ex-novo precipitation of mineral phases. All the results suggest a promising use of these biomaterials in the repair and/or the regeneration of hard tissues such as bone.
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Affiliation(s)
- Ahmed Salama
- Cellulose and Paper Department, National Research Center, 33 El-Bohouth St., Dokki, P.O. 12622, Giza, Egypt.
| | - Ragab E Abou-Zeid
- Cellulose and Paper Department, National Research Center, 33 El-Bohouth St., Dokki, P.O. 12622, Giza, Egypt
| | - Iriczalli Cruz-Maya
- Institute of Polymers, Composites and Biomaterials, National Research Council of Italy, Mostra d'Oltremare, Pad.20, Naples, Italy; Department of Chemical, Materials and Industrial Production Engineering, University of Naples Federico II, Naples, Italy
| | - Vincenzo Guarino
- Institute of Polymers, Composites and Biomaterials, National Research Council of Italy, Mostra d'Oltremare, Pad.20, Naples, Italy.
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Zuppolini S, Maya IC, Diodato L, Guarino V, Borriello A, Ambrosio L. Self-associating cellulose-graft-poly(ε-caprolactone) to design nanoparticles for drug release. MATERIALS SCIENCE & ENGINEERING. C, MATERIALS FOR BIOLOGICAL APPLICATIONS 2019; 108:110385. [PMID: 31923967 DOI: 10.1016/j.msec.2019.110385] [Citation(s) in RCA: 13] [Impact Index Per Article: 2.6] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 07/09/2019] [Revised: 10/19/2019] [Accepted: 10/30/2019] [Indexed: 01/08/2023]
Abstract
The growing interest in the use of polysaccharides nanoparticles for biomedical applications is related to the recent progresses on the synthesis of cellulose-based polymers with the specific functionalities. In particular, cellulose graft copolymers are emerging as amphiphilic materials suitable to fabricate smart nanoparticles for drug delivery applications. In this work, a cellulose-graft-poly(ε-caprolactone) (cell-g-PCL) was synthetized and characterized by FTIR, TGA and DSC in order to validate the synthesis process. We demonstrated that fast evaporation processes promoted cell-g-PCL self-assembly to form nanomicellar structures with hydrodynamic radius ranged from 30 to 60 nm as confirmed by TEM analysis. Moreover, the application of controlled electrostatic forces on solvent evaporation - namely electrospraying - allowed generating round-like nanoscaled particles, as confirmed by SEM supported via image analysis. We demonstrated also that sodium diclofenac (DS) drastically influenced the mechanism of particle formation, favoring the deposition of erythrocyte-like particles with highly concave surfaces, not penalizing the encapsulation efficiency of nanoparticles (>80%). The release profile showed a fast delivery of DS - about 60% during the first 24 h - followed by a sustained release - about 20% during the next 6 days - strictly related to the peculiar weak interactions among amphiphilic polymer segments and water molecules, thus suggesting a successful use of electrosprayed cell-g-PCL nanoparticles for therapeutic treatments in nanomedicine.
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Affiliation(s)
- Simona Zuppolini
- Institute for Polymers, Composites and Biomaterials, National Research Council of Italy, Mostra d'Oltremare, V.le J.F. Kennedy 54, 80125, Naples, Italy
| | - Iriczalli Cruz Maya
- Institute for Polymers, Composites and Biomaterials, National Research Council of Italy, Mostra d'Oltremare, V.le J.F. Kennedy 54, 80125, Naples, Italy
| | - Laura Diodato
- Institute for Polymers, Composites and Biomaterials, National Research Council of Italy, Mostra d'Oltremare, V.le J.F. Kennedy 54, 80125, Naples, Italy
| | - Vincenzo Guarino
- Institute for Polymers, Composites and Biomaterials, National Research Council of Italy, Mostra d'Oltremare, V.le J.F. Kennedy 54, 80125, Naples, Italy.
| | - Anna Borriello
- Institute for Polymers, Composites and Biomaterials, National Research Council of Italy, Mostra d'Oltremare, V.le J.F. Kennedy 54, 80125, Naples, Italy.
| | - Luigi Ambrosio
- Institute for Polymers, Composites and Biomaterials, National Research Council of Italy, Mostra d'Oltremare, V.le J.F. Kennedy 54, 80125, Naples, Italy
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Elmowafy E, Abdal-Hay A, Skouras A, Tiboni M, Casettari L, Guarino V. Polyhydroxyalkanoate (PHA): applications in drug delivery and tissue engineering. Expert Rev Med Devices 2019; 16:467-482. [PMID: 31058550 DOI: 10.1080/17434440.2019.1615439] [Citation(s) in RCA: 73] [Impact Index Per Article: 14.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/19/2022]
Abstract
INTRODUCTION The applications of naturally obtained polymers are tremendously increased due to them being biocompatible, biodegradable, environmentally friendly and renewable in nature. Among them, polyhydroxyalkanoates are widely studied and they can be utilized in many areas of human life research such as drug delivery, tissue engineering, and other medical applications. AREAS COVERED This review provides an overview of the polyhydroxyalkanoates biosynthesis and their possible applications in drug delivery in the range of micro- and nano-size. Moreover, the possible applications in tissue engineering are covered considering macro- and microporous scaffolds and extracellular matrix analogs. EXPERT COMMENTARY The majority of synthetic plastics are non-biodegradable so, in the last years, a renewed interest is growing to develop alternative processes to produce biologically derived polymers. Among them, PHAs present good properties such as high immunotolerance, low toxicity, biodegradability, so, they are promisingly using as biomaterials in biomedical applications.
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Affiliation(s)
- Enas Elmowafy
- a Department of Pharmaceutics and Industrial Pharmacy, Faculty of Pharmacy , Ain Shams University , Cairo , Egypt
| | - Abdalla Abdal-Hay
- b Dentistry and Oral Health School , The University of Queensland , Qld , Australia
| | - Athanasios Skouras
- c Department of Biomolecular Sciences , University of Urbino , Urbino (PU) , Italy.,d Department of Life Sciences , School of Sciences, European University Cyprus , Nicosia , Cyprus
| | - Mattia Tiboni
- c Department of Biomolecular Sciences , University of Urbino , Urbino (PU) , Italy
| | - Luca Casettari
- c Department of Biomolecular Sciences , University of Urbino , Urbino (PU) , Italy
| | - Vincenzo Guarino
- e Institute of Polymers, composites and Biomaterials , National Research Council of Italy , Naples , Italy
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Guarino V, Altobelli R, Caputo T, Ambrosio L, Caserta S, Calcagnile P, Demitri C. Mono- and Bi-Phasic Cellulose Acetate Micro-Vectors for Anti-Inflammatory Drug Delivery. Pharmaceutics 2019; 11:pharmaceutics11020087. [PMID: 30781728 PMCID: PMC6409530 DOI: 10.3390/pharmaceutics11020087] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/10/2019] [Revised: 02/11/2019] [Accepted: 02/12/2019] [Indexed: 12/29/2022] Open
Abstract
In recent years, different processing technologies have been engineered to fabricate capsules or particles with peculiar properties (e.g., swelling, pH-sensitive response) at the micro and sub-micrometric size scale, to be used as carriers for controlled drug and molecular release. Herein, the development of cellulose acetate (CA) micro-carriers with mono- (MC) or bi-phasic (BC) composition is proposed, fabricated via electrohydrodynamic atomization (EHDA)—an electro-dropping technology able to micro-size polymer solution by the application of high voltage electrostatic forces. Image analysis allows identification of the process parameters to optimize morphology, in terms of size distribution and shape. Meanwhile, an accurate rheological study has enabled investigating the interface between CA solutions with different viscosities to optimize BC systems. Release tests have confirmed that BC carriers can retain the drug more efficiently in acidic conditions, also providing a more gradual and sustained release until six days, with respect to MC carriers. Hence, all these results have proven that biphasic architecture significantly improves the capability of CA microcarriers to release ketoprofen lysinate, thus suggesting a new route to design core/shell systems for the retarded oral administration of anti-inflammatory drugs.
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Affiliation(s)
- Vincenzo Guarino
- Institute for Polymers, Composites and Biomaterials, National Research Council of Italy, Naples 80125, Italy.
| | - Rosaria Altobelli
- Institute for Polymers, Composites and Biomaterials, National Research Council of Italy, Naples 80125, Italy.
| | - Tania Caputo
- Institute for Polymers, Composites and Biomaterials, National Research Council of Italy, Naples 80125, Italy.
| | - Luigi Ambrosio
- Institute for Polymers, Composites and Biomaterials, National Research Council of Italy, Naples 80125, Italy.
| | - Sergio Caserta
- Department of Chemical, Materials and Production Engineering, University of Naples Federico II, Naples 80125, Italy.
| | | | - Christian Demitri
- Department of Engineering for Innovation, University of Salento, Lecce 73100, Italy.
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Short-Term Degradation of Bi-Component Electrospun Fibers: Qualitative and Quantitative Evaluations via AFM Analysis. J Funct Biomater 2018; 9:jfb9020027. [PMID: 29601499 PMCID: PMC6023316 DOI: 10.3390/jfb9020027] [Citation(s) in RCA: 13] [Impact Index Per Article: 2.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/10/2018] [Revised: 02/28/2018] [Accepted: 03/20/2018] [Indexed: 12/21/2022] Open
Abstract
Electrospun polymeric fibers are currently used as 3D models for in vitro applications in biomedical areas, i.e., tissue engineering, cell and drug delivery. The high customization of the electrospinning process offers numerous opportunities to manipulate and control surface area, fiber diameter, and fiber density to evaluate the response of cells under different morphological and/or biochemical stimuli. The aim of this study was to investigate—via atomic force microscopy (AFM)—the chemical and morphological changes in bi-component electrospun fibers (BEFs) during the in vitro degradation process using a biological medium. BEFs were fabricated by electrospinning a mixture of synthetic-polycaprolactone (PCL)-and natural polymers (gelatin) into a binary solution. During the hydrolytic degradation of protein, no significant remarkable effects were recognized in terms of fiber integrity. However, increases in surface roughness as well as a decrease in fiber diameter as a function of the degradation conditions were detected. We suggest that morphological and chemical changes due to the local release of gelatin positively influence cell behavior in culture, in terms of cell adhesion and spreading, thus working to mimic the native microenvironment of natural tissues.
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Guarino V, Caputo T, Calcagnile P, Altobelli R, Demitri C, Ambrosio L. Core/shell cellulose-based microspheres for oral administration of Ketoprofen Lysinate. J Biomed Mater Res B Appl Biomater 2018; 106:2636-2644. [DOI: 10.1002/jbm.b.34080] [Citation(s) in RCA: 11] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/30/2017] [Revised: 01/03/2018] [Accepted: 01/08/2018] [Indexed: 12/14/2022]
Affiliation(s)
- Vincenzo Guarino
- Department of Chemical Sciences & Materials Technology, Institute for Polymers, Composites and Biomaterials; National Research Council of Italy; 80125 Naples Italy
| | - Tania Caputo
- Department of Chemical Sciences & Materials Technology, Institute for Polymers, Composites and Biomaterials; National Research Council of Italy; 80125 Naples Italy
| | | | - Rosaria Altobelli
- Department of Chemical Sciences & Materials Technology, Institute for Polymers, Composites and Biomaterials; National Research Council of Italy; 80125 Naples Italy
| | - Christian Demitri
- Department of Engineering for Innovation; University of Salento; Lecce Italy
| | - Luigi Ambrosio
- Department of Chemical Sciences & Materials Technology, Institute for Polymers, Composites and Biomaterials; National Research Council of Italy; 80125 Naples Italy
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Alginate Processing Routes to Fabricate Bioinspired Platforms for Tissue Engineering and Drug Delivery. SPRINGER SERIES IN BIOMATERIALS SCIENCE AND ENGINEERING 2018. [DOI: 10.1007/978-981-10-6910-9_4] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 02/06/2023]
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16
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Fasolino I, Guarino V, Marrese M, Cirillo V, Vallifuoco M, Tamma ML, Vassallo V, Bracco A, Calise F, Ambrosio L. HepG2 and human healthy hepatocyte in vitro culture and co-culture in PCL electrospun platforms. ACTA ACUST UNITED AC 2017; 13:015017. [PMID: 28901955 DOI: 10.1088/1748-605x/aa8c51] [Citation(s) in RCA: 12] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/11/2022]
Abstract
The discovery of new drugs to treat pathological cells in the case of aggressive liver primary cancer is imposing the identification of high-throughput screening systems to predict the in vivo response of new therapeutic molecules, in order to reduce current use of animals and drug testing costs. Recently, micro/nanostructured scaffolds have been adopted to reproduce the hepatic microenvironment due to their higher similarity to the biological niche with respect to the traditional two-dimensional culture plate, so providing novel in vitro models for reliably understanding molecular mechanisms related to cancer cells activity. Herein, we propose the study of electrospun scaffolds made of polycaprolactone as in vitro model that can mimic the morphological organization of native extracellular matrix and the co-culture of hepatic cell lines-i.e., HepG2, human healthy hepatocytes (HHH). The micro- and nano-scale morphological features of fibers with diameter equal to (3.22 ± 0.42) μm and surface roughness of (17.84 ± 4.43) nm-allow the reproduction of the in vivo scenario influencing the adhesion and proliferation rate of the cultured cells. A much lower proliferation rate is observed for the HepG2 cells compared to the HHH cells, when cultured on the fibrous scaffolds over a time course of 4 weeks. Moreover, results on oxidative stress mechanisms indicate an antioxidant effect of fibers mainly in the case of co-colture, thus suggesting a promising use as new in vitro models to explore alternative therapeutic strategies in hepatocarcinoma treatment.
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Affiliation(s)
- I Fasolino
- Institute of Polymers, Composites and Biomaterials, National Research Council of Italy, Mostra d'Oltremare, Pad. 20, V. le Kennedy 54, I-80125, Naples, Italy
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Guarino V, Cruz-Maya I, Altobelli R, Abdul Khodir WK, Ambrosio L, Alvarez Pèrez MA, Flores AA. Electrospun polycaprolactone nanofibres decorated by drug loaded chitosan nano-reservoirs for antibacterial treatments. NANOTECHNOLOGY 2017; 28:505103. [PMID: 29058684 DOI: 10.1088/1361-6528/aa9542] [Citation(s) in RCA: 19] [Impact Index Per Article: 2.7] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/07/2023]
Abstract
The main limitation of conventional antibiotic therapies concerns the low efficacy to fight bacteria attacks during long treatment times. In this context, the integrated use of electrofluidodynamics (EFDs)-basically electrospinning and electrospraying-may represent an interesting route for designing nanostructured platforms with controlled release to prevent the formation of bacterial biofilms in oral implant sites. They allow for the deposition of nanofibres and nanoparticles by different modes-i.e. sequential, simultaneous-for the fabrication of more efficacious systems in terms of degradation protection, pharmacokinetic control and drug distribution to the surrounding tissues. Herein, we will investigate EFDs processing modes and conditions to decorate polycaprolactone nanofibres surfaces by chitosan nano-reservoirs for the administration of Amoxicillin Trihydrate as an innovative antibacterial treatment of the periodontal pocket.
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Affiliation(s)
- Vincenzo Guarino
- Institute of Polymers, Composites and Biomaterials, Naples, National Research Council of Italy, Italy
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