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Anghel N, Spiridon I, Dinu MV, Vlad S, Pertea M. Xanthan-Polyurethane Conjugates: An Efficient Approach for Drug Delivery. Polymers (Basel) 2024; 16:1734. [PMID: 38932084 PMCID: PMC11207320 DOI: 10.3390/polym16121734] [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: 05/10/2024] [Revised: 06/07/2024] [Accepted: 06/18/2024] [Indexed: 06/28/2024] Open
Abstract
The antifungal agent, ketoconazole, and the anti-inflammatory drug, piroxicam, were incorporated into matrices of xanthan or oleic acid-esterified xanthan (Xn) and polyurethane (PU), to develop topical drug delivery systems. Compared to matrices without bioactive compounds, which only showed a nominal compressive stress of 32.18 kPa (sample xanthan-polyurethane) at a strain of 71.26%, the compressive resilience of the biomaterials increased to nearly 50.04 kPa (sample xanthan-polyurethane-ketoconazole) at a strain of 71.34%. The compressive strength decreased to around 30.67 kPa upon encapsulating a second drug within the xanthan-polyurethane framework (sample xanthan-polyurethane-piroxicam/ketoconazole), while the peak sustainable strain increased to 87.21%. The Weibull model provided the most suitable fit for the drug release kinetics. Unlike the materials based on xanthan-polyurethane, those made with oleic acid-esterified xanthan-polyurethane released the active ingredients more slowly (the release rate constant showed lower values). All the materials demonstrated antimicrobial effectiveness. Furthermore, a higher volume of piroxicam was released from oleic acid-esterified xanthan-polyurethane-piroxicam (64%) as compared to xanthan-polyurethane-piroxicam (44%). Considering these results, materials that include polyurethane and either modified or unmodified xanthan showed promise as topical drug delivery systems for releasing piroxicam and ketoconazole.
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Affiliation(s)
- Narcis Anghel
- “Petru Poni” Institute of Macromolecular Chemistry, Gr. Ghica Voda Alley 41A, 700487 Iasi, Romania; (I.S.); (M.-V.D.); (S.V.)
| | - Iuliana Spiridon
- “Petru Poni” Institute of Macromolecular Chemistry, Gr. Ghica Voda Alley 41A, 700487 Iasi, Romania; (I.S.); (M.-V.D.); (S.V.)
| | - Maria-Valentina Dinu
- “Petru Poni” Institute of Macromolecular Chemistry, Gr. Ghica Voda Alley 41A, 700487 Iasi, Romania; (I.S.); (M.-V.D.); (S.V.)
| | - Stelian Vlad
- “Petru Poni” Institute of Macromolecular Chemistry, Gr. Ghica Voda Alley 41A, 700487 Iasi, Romania; (I.S.); (M.-V.D.); (S.V.)
| | - Mihaela Pertea
- Department of Plastic Surgery and Reconstructive Microsurgery, ”Sf. Spiridon” Emergency County Hospital Iasi, “Gr. T. Popa” University of Medicine and Pharmacy Iasi, Bulevardul Independentei No. 1, 700115 Iasi, Romania;
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Petrovici AR, Anghel N, Dinu MV, Spiridon I. Dextran-Chitosan Composites: Antioxidant and Anti-Inflammatory Properties. Polymers (Basel) 2023; 15:polym15091980. [PMID: 37177127 PMCID: PMC10180777 DOI: 10.3390/polym15091980] [Citation(s) in RCA: 6] [Impact Index Per Article: 6.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/27/2023] [Revised: 04/17/2023] [Accepted: 04/20/2023] [Indexed: 05/15/2023] Open
Abstract
This study presents the development of new formulations consisting of dextran (Dex) and chitosan (Ch) matrices, with fillings such as chitosan stearate (MCh), citric acid, salicylic acid, or ginger extract. These materials were characterized using Fourier-Transform Infrared Spectroscopy (FTIR), Scanning Electron Microscopy (SEM), and mechanical tests, and evaluated for antioxidant properties, including scavenging activities, metal chelation, and ferric ion reducing power, as well as anti-inflammatory properties, measuring the binding affinity between serum albumin and the bioactive substances, which can influence their bioavailability, transport, and overall anti-inflammatory effect. Compounds in ginger such as 6-gingerol reduce inflammation by inhibiting the production of inflammatory substances, such as prostaglandin, cytokines, interleukin-1β, and pro-inflammatory transcription factor (NF-κB) and, alongside citric and salicylic acids, combat oxidative stress, stabilizes cell membranes, and promote membrane fluidity, thereby preserving membrane integrity and function. Incorporating chitosan stearate in chitosan:dextran samples created a dense, stiff film with an elastic modulus approximately seventeen times higher than for the chitosan:dextran matrix. The Dex:Ch:MCh sample exhibited low compressibility at 48.74 ± 1.64 kPa, whereas the Dex:Ch:MCh:citric acid:salicylic acid composite had a compact network, allowing for 70.61 ± 3.9% compression at 109.30 kPa. The lipid peroxidation inhibitory assay revealed that Dex:Ch:MCh:citric acid had the highest inhibition value with 83 ± 0.577% at 24 h. The study highlights that adding active substances like ginger extract and citric acid to Dex:Ch composites enhances antioxidant properties, while modified chitosan improves mechanical properties. These composites may have potential medical applications in repairing cell membranes and regulating antioxidant enzyme activities.
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Affiliation(s)
- Anca Roxana Petrovici
- "Petru Poni" Institute of Macromolecular Chemistry, 41A Grigore Ghica Voda Alley, 700487 Iasi, Romania
| | - Narcis Anghel
- "Petru Poni" Institute of Macromolecular Chemistry, 41A Grigore Ghica Voda Alley, 700487 Iasi, Romania
| | - Maria Valentina Dinu
- "Petru Poni" Institute of Macromolecular Chemistry, 41A Grigore Ghica Voda Alley, 700487 Iasi, Romania
| | - Iuliana Spiridon
- "Petru Poni" Institute of Macromolecular Chemistry, 41A Grigore Ghica Voda Alley, 700487 Iasi, Romania
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Anghel N, Apostol I, Dinu MV, Dimitriu CD, Spiridon I, Verestiuc L. Xanthan-Based Materials as a Platform for Heparin Delivery. Molecules 2023; 28:molecules28062757. [PMID: 36985729 PMCID: PMC10054415 DOI: 10.3390/molecules28062757] [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: 02/13/2023] [Revised: 03/14/2023] [Accepted: 03/16/2023] [Indexed: 03/30/2023] Open
Abstract
Heparin (Hep), with its anticoagulant activity, antiangiogenic and apoptotic effects, and growth factor binding, plays an important role in various biological processes. Formulations as drug delivery systems protect its biological activity, and limit the potential side effects of faulty administration. The objective of this study was to develop novel xanthan-based materials as a delivery carrier for heparin. The materials exhibited remarkable elastic behavior and toughness without any crack development within the network, which also support their application for tissue engineering. It was found that all materials possessed the ability to control the release of heparin, according to the Korsmeyer-Peppas release model. All Hep-containing materials caused significant exchanges of the activated partial thromboplastin time (aPTT) and prothrombin time (PT) parameters, indicating that formulated natural/natural synthetic polymeric networks conserved heparin's biological activity and its ability to interrupt the blood coagulation cascade. The obtained results confirmed that developed materials could be carriers for the controlled release of heparin, with potential applications in topical administration.
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Affiliation(s)
- Narcis Anghel
- "P. Poni" Institute of Macromolecular Chemistry, Grigore Ghica-Voda nr. 41A, 700487 Iasi, Romania
| | - Irina Apostol
- "P. Poni" Institute of Macromolecular Chemistry, Grigore Ghica-Voda nr. 41A, 700487 Iasi, Romania
| | - Maria Valentina Dinu
- "P. Poni" Institute of Macromolecular Chemistry, Grigore Ghica-Voda nr. 41A, 700487 Iasi, Romania
| | - Cristina Daniela Dimitriu
- Faculty of Medicine, "Gr. T. Popa" University of Medicine and Pharmacy, Universitatii nr. 16, 700115 Iasi, Romania
| | - Iuliana Spiridon
- "P. Poni" Institute of Macromolecular Chemistry, Grigore Ghica-Voda nr. 41A, 700487 Iasi, Romania
| | - Liliana Verestiuc
- Faculty of Medical Bioengineering, "Gr. T. Popa" University of Medicine and Pharmacy, Kogalniceanu nr. 9-13, 700454 Iasi, Romania
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Anghel N, Melinte V, Spiridon I, Pertea M. Antioxidant, Antimicrobial, and Kinetic Studies of Β-Cyclodextrin Crosslinked with Lignin for Drug Delivery. Pharmaceutics 2022; 14:2260. [PMID: 36365079 PMCID: PMC9697378 DOI: 10.3390/pharmaceutics14112260] [Citation(s) in RCA: 6] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/21/2022] [Revised: 10/11/2022] [Accepted: 10/20/2022] [Indexed: 07/30/2023] Open
Abstract
β-Cyclodextrin was attached to lignin/lignin crosslinked by epichlorohydrin and served as a drug delivery matrix. Ketoconazole and piroxicam were added into the polymeric matrix as antifungal and anti-inflammatory agents, respectively. The percentage of drug retained ranged from 48.4% to 58.4% for ketoconazole and piroxicam, respectively. It was found that their tensile strengths increased with decreasing particle size, ranging between 59% and 71% for lignin crosslinked with β-cyclodextrin base matrix (LCD). Depending on the polymeric matrix, the drug release kinetics fit well in the Korsmeyer-Peppas model, with or without Fickian diffusion. From the materials based on the mixture of epoxidized lignin and β-cyclodextrin, the medicines were released more slowly (the release rate constant presents lower values ranging between 1.117 and 1.783), as compared with those comprising LCD (2.210-4.824). The materials were also demonstrated to have antimicrobial activity. The antioxidant activity of LCD loaded with piroxicam was found to be 23.9% greater than that of the base matrix (LCD). These findings could be useful towards β-cyclodextrin attached to lignin formulation development of drug carriers with antioxidant activity.
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Affiliation(s)
- Narcis Anghel
- Petru Poni Institute of Macromolecular Chemistry, 41 A Grigore Ghica Voda Alley, 700487 Iasi, Romania
| | - Violeta Melinte
- Petru Poni Institute of Macromolecular Chemistry, 41 A Grigore Ghica Voda Alley, 700487 Iasi, Romania
| | - Iuliana Spiridon
- Petru Poni Institute of Macromolecular Chemistry, 41 A Grigore Ghica Voda Alley, 700487 Iasi, Romania
| | - Mihaela Pertea
- Department of Plastic Surgery and Reconstructive Microsurgery, Grigore T. Popa University of Medicine and Pharmacy of Iasi, St. Spiridon Emergency County Hospital, 700115 Iasi, Romania
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Plant Polysaccharides in Engineered Pharmaceutical Gels. Bioengineering (Basel) 2022; 9:bioengineering9080376. [PMID: 36004901 PMCID: PMC9405058 DOI: 10.3390/bioengineering9080376] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/23/2022] [Revised: 07/27/2022] [Accepted: 08/04/2022] [Indexed: 11/17/2022] Open
Abstract
Hydrogels are a great ally in the pharmaceutical and biomedical areas. They have a three-dimensional polymeric structure that allows the swelling of aqueous fluids, acting as an absorbent, or encapsulating bioactive agents for controlled drug release. Interestingly, plants are a source of biogels, specifically polysaccharides, composed of sugar monomers. The crosslinking of these polymeric chains forms an architecture similar to the extracellular matrix, enhancing the biocompatibility of such materials. Moreover, the rich hydroxyl monomers promote a hydrophilic behavior for these plant-derived polysaccharide gels, enabling their biodegradability and antimicrobial effects. From an economic point of view, such biogels help the circular economy, as a green material can be obtained with a low cost of production. As regards the bio aspect, it is astonishingly attractive since the raw materials (polysaccharides from plants-cellulose, hemicelluloses, lignin, inulin, pectin, starch, guar, and cashew gums, etc.) might be produced sustainably. Such properties make viable the applications of these biogels in contact with the human body, especially incorporating drugs for controlled release. In this context, this review describes some sources of plant-derived polysaccharide gels, their biological function, main methods for extraction, remarkable applications, and properties in the health field.
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Xanthan and alginate-matrix used as transdermal delivery carrier for piroxicam and ketoconazole. Int J Biol Macromol 2022; 209:2084-2096. [PMID: 35500769 DOI: 10.1016/j.ijbiomac.2022.04.189] [Citation(s) in RCA: 2] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/07/2022] [Revised: 04/15/2022] [Accepted: 04/25/2022] [Indexed: 11/21/2022]
Abstract
This study presents new drug delivery systems based on xanthan, unmodified or modified by esterification with oleic acid, and alginate for controlled release of bioactive substances with anti-inflammatory (piroxicam) and antifungal properties (ketoconazole). The mechanical properties of the developed drug carriers showed that their compressive strength was affected by the encapsulation of the bioactive principles. When ketoconazole was added into the xanthan/alginate matrix, an increment in the mechanical strength was recorded (66.68% compression). The release of the active principles from the materials was best described by the Korsmeyer-Peppas model, with non-Fickian or Fickian diffusion (the values of the exponent of release are between 0.29 and 0.75), depending on the composition of the polymeric matrix. The release rate constant presents smaller values for the materials based on chemically modified xanthan (between 0.89 and 20.11) as compared with materials based on the unmodified form (between 4.27 and 25.00). All materials were characterized by Fourier Transform Infrared Spectroscopy (FTIR) and Scanning Electron Microscopy (SEM). The designed systems prove to have antimicrobial and anti-inflammatory activity. The findings make prone these biomaterials for the manufacture of transdermal drug delivery systems.
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Khadem E, Kharaziha M, Bakhsheshi-Rad HR, Das O, Berto F. Cutting-Edge Progress in Stimuli-Responsive Bioadhesives: From Synthesis to Clinical Applications. Polymers (Basel) 2022; 14:polym14091709. [PMID: 35566878 PMCID: PMC9104595 DOI: 10.3390/polym14091709] [Citation(s) in RCA: 2] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/09/2022] [Revised: 03/31/2022] [Accepted: 04/08/2022] [Indexed: 02/04/2023] Open
Abstract
With the advent of “intelligent” materials, the design of smart bioadhesives responding to chemical, physical, or biological stimuli has been widely developed in biomedical applications to minimize the risk of wounds reopening, chronic pain, and inflammation. Intelligent bioadhesives are free-flowing liquid solutions passing through a phase shift in the physiological environment due to stimuli such as light, temperature, pH, and electric field. They possess great merits, such as ease to access and the ability to sustained release as well as the spatial transfer of a biomolecule with reduced side effects. Tissue engineering, wound healing, drug delivery, regenerative biomedicine, cancer therapy, and other fields have benefited from smart bioadhesives. Recently, many disciplinary attempts have been performed to promote the functionality of smart bioadhesives and discover innovative compositions. However, according to our knowledge, the development of multifunctional bioadhesives for various biomedical applications has not been adequately explored. This review aims to summarize the most recent cutting-edge strategies (years 2015–2021) developed for stimuli-sensitive bioadhesives responding to external stimuli. We first focus on five primary categories of stimuli-responsive bioadhesive systems (pH, thermal, light, electric field, and biomolecules), their properties, and limitations. Following the introduction of principal criteria for smart bioadhesives, their performances are discussed, and certain smart polymeric materials employed in their creation in 2015 are studied. Finally, advantages, disadvantages, and future directions regarding smart bioadhesives for biomedical applications are surveyed.
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Affiliation(s)
- Elham Khadem
- Department of Materials Engineering, Isfahan University of Technology, Isfahan 84156-83111, Iran;
| | - Mahshid Kharaziha
- Department of Materials Engineering, Isfahan University of Technology, Isfahan 84156-83111, Iran;
- Correspondence: (M.K.); (F.B.)
| | - Hamid Reza Bakhsheshi-Rad
- Advanced Materials Research Center, Department of Materials Engineering, Najafabad Branch, Islamic Azad University, Najafabad, Iran;
| | - Oisik Das
- Structural and Fire Engineering Division, Department of Civil, Environmental and Natural Resources Engineering, Luleå University of Technology, 97187 Luleå, Sweden;
| | - Filippo Berto
- Department of Mechanical and Industrial Engineering, Norwegian University of Science and Technology, 7491 Trondheim, Norway
- Correspondence: (M.K.); (F.B.)
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Spiridon I, Dascalu IA, Coroaba A, Apostol I, Palamaru MN, Iordan AR, Borhan AI. Synthesis and Characterization of New Ferrite-Lignin Hybrids. Polymers (Basel) 2021; 13:2495. [PMID: 34372096 PMCID: PMC8347744 DOI: 10.3390/polym13152495] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/12/2021] [Revised: 07/23/2021] [Accepted: 07/25/2021] [Indexed: 11/16/2022] Open
Abstract
The paper presents the synthesis and characterization of new cobalt ferrite-lignin hybrids. The hybrids were obtained through the combustion of cobalt nitrate and ferric nitrate, two kinds of lignin being used as combustion agents. The temperatures of calcination were 500 °C and 900 °C, respectively. The hybrids were characterized by Fourier transform infrared spectroscopy (FT-IR), X-ray powder diffraction (XRD), scanning electron microscopy (SEM), energy-dispersive X-ray (EDX), and X-ray photoelectron spectroscopy (XPS). The magnetic properties were also assessed by vibrating sample magnetometer system (VSM). This facile synthesis method made it possible to obtain cobalt ferrite-lignin hybrids with a spinel structure. Their particle sizes and crystallite sizes have increased with an increment in the calcination temperature. A different occupancy of cations at octahedral and tetrahedral sites also occurred upon the increase in temperature. The hybrids comprising organic lignin presented the best magnetic properties.
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Affiliation(s)
- Iuliana Spiridon
- “Petru Poni” Institute of Macromolecular Chemistry, Grigore Ghica–Voda 41, 700487 Iasi, Romania; (I.-A.D.); (A.C.); (I.A.)
| | - Ioan-Andrei Dascalu
- “Petru Poni” Institute of Macromolecular Chemistry, Grigore Ghica–Voda 41, 700487 Iasi, Romania; (I.-A.D.); (A.C.); (I.A.)
| | - Adina Coroaba
- “Petru Poni” Institute of Macromolecular Chemistry, Grigore Ghica–Voda 41, 700487 Iasi, Romania; (I.-A.D.); (A.C.); (I.A.)
| | - Irina Apostol
- “Petru Poni” Institute of Macromolecular Chemistry, Grigore Ghica–Voda 41, 700487 Iasi, Romania; (I.-A.D.); (A.C.); (I.A.)
| | - Mircea Nicolae Palamaru
- Faculty of Chemistry, Alexandru Ioan Cuza University of Iaşi, 11, Carol I Blvd., 700506 Iasi, Romania; (M.N.P.); (A.R.I.); (A.I.B.)
| | - Alexandra Raluca Iordan
- Faculty of Chemistry, Alexandru Ioan Cuza University of Iaşi, 11, Carol I Blvd., 700506 Iasi, Romania; (M.N.P.); (A.R.I.); (A.I.B.)
| | - Adrian Iulian Borhan
- Faculty of Chemistry, Alexandru Ioan Cuza University of Iaşi, 11, Carol I Blvd., 700506 Iasi, Romania; (M.N.P.); (A.R.I.); (A.I.B.)
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Spiridon I, Andrei IM, Anghel N, Dinu MV, Ciubotaru BI. Development and Characterization of Novel Cellulose Composites Obtained in 1-Ethyl-3-methylimidazolium Chloride Used as Drug Delivery Systems. Polymers (Basel) 2021; 13:2176. [PMID: 34209115 PMCID: PMC8271543 DOI: 10.3390/polym13132176] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/09/2021] [Revised: 06/24/2021] [Accepted: 06/28/2021] [Indexed: 12/14/2022] Open
Abstract
Two polysaccharides (cellulose and chitosan) and polyurethane dissolved in 1-ethyl-3-methylimidazolium chloride represented the matrix for the obtainment of new composite formulations comprised of lignin, ferrite-lignin hybrid and ketoconazole. The mechanical performances (Young's modulus and compressive strength) increased with the filler addition. The nature of the filler used in the studied formulations influenced both bioadhesion and mucoadhesion parameters. It was found that the incorporation of lignin and ferrite-lignin hybrid into the matrix has influenced the in vitro rate of ketoconazole release, which is described by the Korsmeyer-Peppas model. All materials exhibited activity against Gram positive (Staphylococcus aureus ATCC 25923) and Gram negative (Escherichia coli ATCC 25922) bacteria.
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Affiliation(s)
- Iuliana Spiridon
- “Petru Poni” Institute of Macromolecular Chemistry, Grigore Ghica–Vodă 41, 700487 Iasi, Romania; (I.-M.A.); (N.A.); (M.V.D.); (B.-I.C.)
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