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Ailincai D, Andreica BI. Citryl-Imino-Chitosan Xerogels as Promising Materials for Mercury Recovery from Waste Waters. Polymers (Basel) 2023; 16:19. [PMID: 38201684 PMCID: PMC10780342 DOI: 10.3390/polym16010019] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/28/2023] [Revised: 12/13/2023] [Accepted: 12/14/2023] [Indexed: 01/12/2024] Open
Abstract
The present study reported the obtention of xerogels based on chitosan and citral and their use as materials for mercury ion recovery from aqueous solutions, this being a serious problem related to the environment. The systems were prepared by the acid condensation of chitosan with citral, followed by the lyophilization of the resulting hydrogels, in order to obtain highly porous solid materials. The structural, morphological and supramolecular characterization of the systems was performed using 1H-NMR and FTIR spectroscopy, scanning electron microscopy and wide-angle X-ray diffraction. The ability of the obtained materials to be used for the recovery of mercury from aqueous solutions revealed the high potential of the xerogels to be used in this sense, the analysis of the materials post mercury absorption experiments revealing that this ability is predominantly conferred by the imine linkages which act as coordinating moieties for mercury ions.
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Affiliation(s)
- Daniela Ailincai
- Petru Poni Institute of Macromolecular Chemistry, Grigore Ghica Voda Alley, 41A, 700487 Iasi, Romania
- The Research Institute of the University of Bucharest (ICUB), 90 Sos. Panduri, 050663 Bucharest, Romania
| | - Bianca Iustina Andreica
- Petru Poni Institute of Macromolecular Chemistry, Grigore Ghica Voda Alley, 41A, 700487 Iasi, Romania
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2
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Ailincai D, Cibotaru S, Anisiei A, Coman CG, Pasca AS, Rosca I, Sandu AI, Mititelu-Tartau L, Marin L. Mesoporous chitosan nanofibers loaded with norfloxacin and coated with phenylboronic acid perform as bioabsorbable active dressings to accelerate the healing of burn wounds. Carbohydr Polym 2023; 318:121135. [PMID: 37479445 DOI: 10.1016/j.carbpol.2023.121135] [Citation(s) in RCA: 3] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/10/2023] [Revised: 06/09/2023] [Accepted: 06/19/2023] [Indexed: 07/23/2023]
Abstract
The paper reports new chitosan-based nanofibers, designed to address the healing of burn wounds. To this aim, mesoporous chitosan fiber mats were prepared by electrospinning using poly(ethylene oxide) as sacrificial additive, followed by loading with norfloxacin and coating with an antifungal agent via dynamic imine bonds. Dynamic vapor sorption experiment proved intra-fiber mesopores around 2.7 nm, and UV-vis, FTIR, and NMR spectroscopy confirmed the norfloxacin embedding and the imination reaction. SEM, AFM and POM techniques displayed semicrystalline nanofibers with average diameter around 170 nm entangled into a non-woven mat. Their mesoporous nature favored a rapid adsorption of fluids up to 17 g/g, and a biodegradation rate fitting the wound healing rate, i.e. up to 30 % mass loss in media of pH characteristic to wound exudate and total degradation in that characteristic to normal dermis. The composite fibers released the NFX and 2FPBA in a controlled manner, and showed antimicrobial activity against gram positive, gram negative and fungal strains. They had no cytotoxic effect on normal human dermal fibroblasts, and showed biocompatibility on experimental rats. The investigation of wound healing ability on second/third-degree burn model in rats revealed wound closure and total restoration of the fully functional dermis and epidermis.
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Affiliation(s)
- Daniela Ailincai
- "Petru Poni" Institute of Macromolecular Chemistry of Romanian Academy, Iasi, Romania
| | - Sandu Cibotaru
- "Petru Poni" Institute of Macromolecular Chemistry of Romanian Academy, Iasi, Romania
| | - Alexandru Anisiei
- "Petru Poni" Institute of Macromolecular Chemistry of Romanian Academy, Iasi, Romania
| | - Corneliu G Coman
- "Grigore T. Popa" University of Medicine and Pharmacy, Iasi, Romania
| | - Aurelian Sorin Pasca
- "Ion Ionescu de la Brad" University, Laboratory of Antimicrobial Chemotherapy, Iasi, Romania
| | - Irina Rosca
- "Petru Poni" Institute of Macromolecular Chemistry of Romanian Academy, Iasi, Romania
| | - Andreea-Isabela Sandu
- "Petru Poni" Institute of Macromolecular Chemistry of Romanian Academy, Iasi, Romania
| | | | - Luminita Marin
- "Petru Poni" Institute of Macromolecular Chemistry of Romanian Academy, Iasi, Romania.
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Ailincai D, Morariu S, Rosca I, Sandu AI, Marin L. Drug delivery based on a supramolecular chemistry approach by using chitosan hydrogels. Int J Biol Macromol 2023; 248:125800. [PMID: 37442500 DOI: 10.1016/j.ijbiomac.2023.125800] [Citation(s) in RCA: 4] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/07/2023] [Revised: 07/06/2023] [Accepted: 07/10/2023] [Indexed: 07/15/2023]
Abstract
Microbial infections are a serious healthcare related problem, causing several complications and even death. That is why, the development of new drug delivery systems with prolonged effect represents an interesting research topic. This study presents the synthesis and characterization of new hydrogels based on chitosan and three halogenated monoaldehydes. Further, the hydrogels were used as excipients for the development of drug delivery systems (DDS) by the incorporation of fluconazole, an antifungal drug. The systems were structurally characterized by Fourier Transformed Infrared Spectroscopy and Nuclear Magnetic Resonance, both methods revealing the formation of the imine linkages between chitosan and the aldehydes. The samples presented a high degree of ordering at supramolecular level, as demonstrated by WXRD and POM and a good water-uptake, reaching a maximum of 1.6 g/g. The obtained systems were biodegradable, loosing between 38 and 49 % from their initial mass in the presence of lysozyme in 21 days. The ability to release the antifungal drug in a sustained manner for seven days, along with the high values of the inhibition zone diameter, reaching a maximum of 64 mm against Candida parapsilosis for the chlorine containing sample, recommend these systems as promising materials for bioapplications.
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Affiliation(s)
- Daniela Ailincai
- "Petru Poni" Institute of Macromolecular Chemistry, Gr. Ghica Voda Alley, 41A, Iasi, Romania.
| | - Simona Morariu
- "Petru Poni" Institute of Macromolecular Chemistry, Gr. Ghica Voda Alley, 41A, Iasi, Romania
| | - Irina Rosca
- "Petru Poni" Institute of Macromolecular Chemistry, Gr. Ghica Voda Alley, 41A, Iasi, Romania
| | - Andreea Isabela Sandu
- "Petru Poni" Institute of Macromolecular Chemistry, Gr. Ghica Voda Alley, 41A, Iasi, Romania
| | - Luminita Marin
- "Petru Poni" Institute of Macromolecular Chemistry, Gr. Ghica Voda Alley, 41A, Iasi, Romania
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Ailincai D, Turin Moleavin IA, Sarghi A, Fifere A, Dumbrava O, Pinteala M, Balan GG, Rosca I. New Hydrogels Nanocomposites Based on Chitosan, 2-Formylphenylboronic Acid, and ZnO Nanoparticles as Promising Disinfectants for Duodenoscopes Reprocessing. Polymers (Basel) 2023; 15:2669. [PMID: 37376315 DOI: 10.3390/polym15122669] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/22/2023] [Revised: 06/09/2023] [Accepted: 06/12/2023] [Indexed: 06/29/2023] Open
Abstract
New hydrogels nanocomposites, based on iminoboronate hydrogels and ZnO nanoparticles (ZnO-NPs), were obtained and characterised in order to develop a new class of disinfectants able to fight the nosocomial infections produced by duodenoscopes investigation procedures. The formation of the imine linkages between chitosan and the aldehyde was demonstrated using NMR and FTIR spectroscopy, while the supramolecular architecture of the developed systems was evaluated via wide-angle X-ray diffraction and polarised optical microscopy. The morphological characterisation of the systems via scanning electron microscopy revealed the highly porous structure of the materials, in which no ZnO agglomeration could be observed, indicating the very fine and homogenous encapsulation of the nanoparticles into the hydrogels. The newly synthetised hydrogels nanocomposites was proven to have synergistic antimicrobial properties, being very efficient as disinfectants against reference strains as: Enterococcus faecalis, Klebsiella pneumoniae, and Candida albicans.
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Affiliation(s)
- Daniela Ailincai
- "Petru Poni" Institute of Macromolecular Chemistry, 700487 Iasi, Romania
| | | | - Alexandra Sarghi
- "Petru Poni" Institute of Macromolecular Chemistry, 700487 Iasi, Romania
| | - Adrian Fifere
- "Petru Poni" Institute of Macromolecular Chemistry, 700487 Iasi, Romania
| | - Oana Dumbrava
- "Petru Poni" Institute of Macromolecular Chemistry, 700487 Iasi, Romania
| | - Mariana Pinteala
- "Petru Poni" Institute of Macromolecular Chemistry, 700487 Iasi, Romania
| | - Gheorghe G Balan
- Faculty of Medicine, 'Grigore T. Popa' University of Medicine, 700115 Iasi, Romania
- Institute of Gastroenterology and Hepatology, St. Spiridon Emergency County Hospital, 700111 Iasi, Romania
| | - Irina Rosca
- "Petru Poni" Institute of Macromolecular Chemistry, 700487 Iasi, Romania
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Ailincai D, Bercea M, Mititelu Tartau L, Marin L. Biocompatible drug delivery systems able to co-deliver antifungal and antiviral agents. Carbohydr Polym 2022; 298:120071. [DOI: 10.1016/j.carbpol.2022.120071] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/10/2022] [Revised: 08/19/2022] [Accepted: 09/01/2022] [Indexed: 11/02/2022]
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Cibotaru S, Ailincai D, Andreica BI, Cheng X, Marin L. TEGylated Phenothiazine-Imine-Chitosan Materials as a Promising Framework for Mercury Recovery. Gels 2022; 8:692. [PMID: 36354600 PMCID: PMC9689029 DOI: 10.3390/gels8110692] [Citation(s) in RCA: 6] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/26/2022] [Revised: 10/19/2022] [Accepted: 10/21/2022] [Indexed: 08/26/2023] Open
Abstract
This paper reports new solid materials based on TEGylated phenothiazine and chitosan, with a high capacity to recover mercury ions from aqueous solutions. They were prepared by hydrogelation of chitosan with a formyl derivative of TEGylated phenothiazine, followed by lyophilization. Their structural and supramolecular characterization was carried out by 1H-NMR and FTIR spectroscopy, as well as X-ray diffraction and polarized light microscopy. Their morphology was investigated by scanning electron microscopy and their photophysical behaviour was examined by UV/Vis and emission spectroscopy. Swelling evaluation in different aqueous media indicated the key role played by the supramolecular organization for their hydrolytic stability. Mercury recovery experiments and the analysis of the resulting materials by X-ray diffraction and FTIR spectroscopy showed a high ability of the studied materials to bind mercury ions by coordination with the sulfur atom of phenothiazine, imine linkage, and amine units of chitosan.
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Affiliation(s)
- Sandu Cibotaru
- “Petru Poni” Institute of Macromolecular Chemistry, Gr. Ghica Voda Alley, 41A, 700487 Iasi, Romania
| | - Daniela Ailincai
- “Petru Poni” Institute of Macromolecular Chemistry, Gr. Ghica Voda Alley, 41A, 700487 Iasi, Romania
| | - Bianca-Iustina Andreica
- “Petru Poni” Institute of Macromolecular Chemistry, Gr. Ghica Voda Alley, 41A, 700487 Iasi, Romania
| | - Xinjian Cheng
- School of Chemistry and Environmental Engineering, Wuhan Institute of Technology, Wuhan 430079, China
| | - Luminita Marin
- “Petru Poni” Institute of Macromolecular Chemistry, Gr. Ghica Voda Alley, 41A, 700487 Iasi, Romania
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Ailincai D, Rosca I, Morariu S, Mititelu-Tartau L, Marin L. Iminoboronate-chitooligosaccharides hydrogels with strong antimicrobial activity for biomedical applications. Carbohydr Polym 2022; 276:118727. [PMID: 34823763 DOI: 10.1016/j.carbpol.2021.118727] [Citation(s) in RCA: 20] [Impact Index Per Article: 10.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/20/2021] [Revised: 09/10/2021] [Accepted: 10/01/2021] [Indexed: 01/10/2023]
Abstract
The paper reports hydrogels prepared from chitooligosaccharides with different polymerization degrees (14 to 51), by crosslinking with 2-formylphenylboronicacid in three molar ratios of their functionalities. The structural, morphological and supramolecular characterization confirmed a hydrogelation mechanism based on self-assembling of newly formed imine units and porous morphology. Rheological measurements confirmed the formation of thixotropic hydrogels, and swelling tests indicated mass equilibrium swelling values up to 25 in water and 9 in phosphate buffer saline. The monitoring of enzymatic degradability demonstrated the enhancing of biodegradation rate as long as the polymerization degrees of the oligomers decreased, the mass loss increasing from 16% to 43%. In vivo and ex-vivo biocompatibility investigation on experimental mice showed no cytotoxic effect, and in vitro antimicrobial tests revealed remarkable antimicrobial properties on nine strains, with a maximum inhibition diameter of 49 mm on Aspergilius brasiliensis and very good results on Cladosporium cladosporioides, Penicillium crysogenum and different Candida species.
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Affiliation(s)
- Daniela Ailincai
- "Petru Poni" Institute of Macromolecular Chemistry, Gr. Ghica Voda Alley, 41A, Iasi, Romania.
| | - Irina Rosca
- "Petru Poni" Institute of Macromolecular Chemistry, Gr. Ghica Voda Alley, 41A, Iasi, Romania
| | - Simona Morariu
- "Petru Poni" Institute of Macromolecular Chemistry, Gr. Ghica Voda Alley, 41A, Iasi, Romania
| | | | - Luminita Marin
- "Petru Poni" Institute of Macromolecular Chemistry, Gr. Ghica Voda Alley, 41A, Iasi, Romania
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Andreica BI, Ailincai D, Sandu AI, Marin L. Amphiphilic chitosan-g-poly(trimethylene carbonate) - A new approach for biomaterials design. Int J Biol Macromol 2021; 193:414-424. [PMID: 34715200 DOI: 10.1016/j.ijbiomac.2021.10.174] [Citation(s) in RCA: 9] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/19/2021] [Revised: 10/19/2021] [Accepted: 10/23/2021] [Indexed: 01/14/2023]
Abstract
The paper presents the synthesis and characterization of poly(trimethylene carbonate) grafted chitosan as a new water soluble biopolymer suitable for in vivo applications. The synthesis was performed via ring-opening polymerization of 1,3-dioxan-2-one (trimethylene carbonate) (TMC) monomer, initiated by the functional groups of chitosan in the presence of toluene as solvent/swelling agent. By varying the molar ratio between the glucosamine units of chitosan and TMC, a series of chitosan derivatives with different content of poly(trimethylene carbonate) chains was synthetized. The structural characterization of the polymers was realized by FTIR and 1H NMR spectroscopy and their solubility was assessed in water and in organic solvents as well. The biocompatibility was investigated by MTS assay on Normal Human Dermal Fibroblasts, and the biodegradability was evaluated in lysozyme buffer solution. Further, the surface properties of the polymer films were analyzed by polarized optical microscopy, atomic force microscopy and water-to-air contact angle measurements. It was established that, by 5% substitution of chitosan with poly(trimethylene carbonate) chains having an average polymerization degree of 7, a water soluble polymer can be attained. Compared to the pristine chitosan, it has improved biocompatibility in solution and moderate wettability and higher biodegradability rate in solid state, pointing its suitability for in vivo applications.
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Affiliation(s)
| | - Daniela Ailincai
- "Petru Poni" Institute of Macromolecular Chemistry of Romanian Academy, Iasi, Romania
| | - Andreea-Isabela Sandu
- "Petru Poni" Institute of Macromolecular Chemistry of Romanian Academy, Iasi, Romania
| | - Luminita Marin
- "Petru Poni" Institute of Macromolecular Chemistry of Romanian Academy, Iasi, Romania.
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Lungu R, Anisiei A, Rosca I, Sandu AI, Ailincai D, Marin L. Double functionalization of chitosan based nanofibers towards biomaterials for wound healing. REACT FUNCT POLYM 2021. [DOI: 10.1016/j.reactfunctpolym.2021.105028] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/09/2023]
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Ailincai D, Agop M, Marinas IC, Zala A, Irimiciuc SA, Dobreci L, Petrescu TC, Volovat C. Theoretical model for the diclofenac release from PEGylated chitosan hydrogels. Drug Deliv 2021; 28:261-271. [PMID: 33501878 PMCID: PMC7850333 DOI: 10.1080/10717544.2021.1876181] [Citation(s) in RCA: 6] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/03/2023] Open
Abstract
Controlled drug delivery systems are of utmost importance for the improvement of drug bioavailability while limiting the side effects. For the improvement of their performances, drug release modeling is a significant tool for the further optimization of the drug delivery systems to cross the barrier to practical application. We report here on the modeling of the diclofenac sodium salt (DCF) release from a hydrogel matrix based on PEGylated chitosan in the context of Multifractal Theory of Motion, by means of a fundamental spinor set given by 2 × 2 matrices with real elements, which can describe the drug-release dynamics at global and local scales. The drug delivery systems were prepared by in situ hydrogenation of PEGylated chitosan with citral in the presence of the DCF, by varying the hydrophilic/hydrophobic ratio of the components. They demonstrated a good dispersion of the drug into the matrix by forming matrix-drug entities which enabled a prolonged drug delivery behavior correlated with the hydrophilicity degree of the matrix. The application of the Multifractal Theory of Motion fitted very well on these findings, the fractality degree accurately describing the changes in hydrophilicity of the polymer. The validation of the model on this series of formulations encourages its further use for other systems, as an easy tool for estimating the drug release toward the design improvement. The present paper is a continuation of the work 'A theoretical mathematical model for assessing diclofenac release from chitosan-based formulations,' published in Drug Delivery Journal, 27(1), 2020, that focused on the consequences induced by the invariance groups of Multifractal Diffusion Equations in correlation with the drug release dynamics.
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Affiliation(s)
- Daniela Ailincai
- Petru Poni Institute of Macromolecular Chemistry, Romanian Academy, Iasi, Romania
| | - Maricel Agop
- Department of Physics, "Gh. Asachi" Technical University of Iasi, Iasi, Romania.,Romanian Scientists Academy, Bucharest, Romania
| | - Ioana Cristina Marinas
- Center for Services and Research in Advanced Biotechnologies, Calugareni, Sanimed International Impex srl, Bucharest, Romania
| | - Andrei Zala
- Municipal Emergency Hospital-Moineşti, Moineşti, Romania
| | | | - Lucian Dobreci
- Department of Physical and Occupational Therapy, Vasile Alecsandri University of Bacau, Bacau, Romania
| | - Tudor-Cristian Petrescu
- Department of Structural Mechanics, "Gh. Asachi" Technical University of Iasi, Iasi, Romania
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Ailincai D, Porzio W, Marin L. Hydrogels Based on Imino-Chitosan Amphiphiles as a Matrix for Drug Delivery Systems. Polymers (Basel) 2020; 12:E2687. [PMID: 33202586 PMCID: PMC7696980 DOI: 10.3390/polym12112687] [Citation(s) in RCA: 17] [Impact Index Per Article: 4.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/12/2020] [Revised: 11/03/2020] [Accepted: 11/12/2020] [Indexed: 12/13/2022] Open
Abstract
This paper reports new formulations based on chitosan, citral, and diclofenac sodium salt (DCF). The central idea was to encapsulate an anionic drug into a polycationic hydrogel matrix in order to increase the intermolecular forces between them and thus to ensure slower drug release, while citral was used as a penetration enhancer to assure efficient delivery of the drug. Hydrogels without drug were also synthesized and used as a reference. The structure, morphology, and supramolecular architecture of the drug delivery systems were evaluated by FTIR spectroscopy, scanning electron microscopy, polarized optical microscopy, and wide-angle X-ray diffraction. The drug release kinetics was monitored in vitro by UV-VIS spectroscopy, in physiological conditions, while the enzymatic and hydrolytic degradability of the hydrogels were evaluated in the presence of lysozyme and phosphate buffer saline (PBS), at 37 °C. All of the data revealed that the anionic DCF was strongly anchored into the polycationic matrix and the drug was slowly released over 7 days. Moreover, the release rate can be controlled by simple variation of the molar ratio between the polycationic chitosan and lipophilic citral.
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Affiliation(s)
- Daniela Ailincai
- “Petru Poni” Institute of Macromolecular Chemistry, 400487 Iasi, Romania;
| | - William Porzio
- Institute of Chemical Sciences and Technologies, “G. Natta“ Consiglio Nazionale delle Ricerche (SCI-TEC) via A. Corti, 12 20133 Milano, Italy;
| | - Luminita Marin
- “Petru Poni” Institute of Macromolecular Chemistry, 400487 Iasi, Romania;
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Ailincai D, Gavril G, Marin L. Polyvinyl alcohol boric acid - A promising tool for the development of sustained release drug delivery systems. Mater Sci Eng C Mater Biol Appl 2019; 107:110316. [PMID: 31761179 DOI: 10.1016/j.msec.2019.110316] [Citation(s) in RCA: 16] [Impact Index Per Article: 3.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 03/21/2019] [Revised: 10/01/2019] [Accepted: 10/14/2019] [Indexed: 01/04/2023]
Abstract
The paper deals with the design and investigation of the morphology, in vitro drug release and biocompatibility of some new formulations based on polyvinyl alcohol boric acid (PVAB) and diclofenac sodium salt (DCF), with the aim to explore the ability of PVAB to act as a matrix for controlled drug delivery systems. A series of three formulations was obtained by mixing the drug and the polymeric matrix in different mass ratios, with high drug content from 10% w/w to 30% w/w. Their structural and supramolecular characterization, performed by FTIR spectroscopy and X-ray diffraction, revealed important physical interactions between the drug and the polymeric matrix. The morphological data, obtained by X-ray diffraction, polarized optical microscopy and scanning electron microscopy revealed the presence of the drug into the PVAB polymeric matrix, as micrometric polycrystals with a mean diameter in the range 10-15 μm, depending on the drug/polymer ratio. The investigation of their surface peculiarities indicated highly hydrophilic surfaces with a water to air contact angle between 29.9 and 41.4 deg and a surface free energy of 45.6-54.2 N/m2. The in vitro release kinetics was monitored by UV-VIS spectroscopy and the cytotoxic effect was investigated in vitro on fibroblasts and HeLa cells. The PVAB proved excellent cytocompatibility, a relative cell viability of the fibroblasts higher than 90% being recorded for concentrations of PVAB up to 7.5% w/v. The drug has been strongly anchored into the electron deficient PVAB matrix, fact which led to its prolonged release up to 5 days. These findings recommend PVAB as a versatile tool for the development of sustained release drug delivery systems with real chances to cross the gap from theory to applications.
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Affiliation(s)
- Daniela Ailincai
- "Petru Poni" Institute of Macromolecular Chemistry, Iasi, Romania.
| | - Gabriela Gavril
- "Petru Poni" Institute of Macromolecular Chemistry, Iasi, Romania
| | - Luminita Marin
- "Petru Poni" Institute of Macromolecular Chemistry, Iasi, Romania
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Ailincai D, Tartau Mititelu L, Marin L. Drug delivery systems based on biocompatible imino-chitosan hydrogels for local anticancer therapy. Drug Deliv 2018; 25:1080-1090. [PMID: 29722585 PMCID: PMC6058698 DOI: 10.1080/10717544.2018.1466937] [Citation(s) in RCA: 37] [Impact Index Per Article: 6.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/13/2018] [Revised: 04/11/2018] [Accepted: 04/16/2018] [Indexed: 10/25/2022] Open
Abstract
A series of drug delivery systems were prepared by chitosan hydrogelation with citral in the presence of an antineoplastic drug: 5-fluorouracil. The dynamic covalent chemistry of the imine linkage allowed the obtaining of supramolecular tridimensional architectures in which the drug has been homogenously dispersed. Fourier-transform infrared spectroscopy (FTIR), wide-angle X-ray diffraction (WXRD) and polarized light microscopy (POM) measurements were used in order to follow the hydrogelation and drug encapsulation processes. The ability of the prepared systems to release the drug has been investigated by UV-Vis spectroscopy using a calibration curve and by fitting the results with different mathematic models. To mimic the behavior of the hydrogel matrix in bio-environmental conditions in view of applications, their enzymatic degradability was monitored in the presence of lysozyme. The in vivo side effects of the systems, in terms of their influence on the blood elements, biochemical and immune parameters were monitored on white Swiss mice by intraperitoneal administration of the injectable obtained hydrogels. All the characteristics of the obtained systems, such as micro-porous morphology, uniform drug encapsulation, enzymatic degradability, lack of side effects, other than the one of the drug itself, along with their ability to release the drug in a sustained manner proved that these material meet the requirements for the development of drug delivery systems, making them suitable for being applied in intraperitoneal chemotherapy.
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Affiliation(s)
- Daniela Ailincai
- Petru Poni Institute of Macromolecular Chemistry, Grigore Ghica Voda Alley, Iasi, Romania
| | | | - Luminita Marin
- Petru Poni Institute of Macromolecular Chemistry, Grigore Ghica Voda Alley, Iasi, Romania
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Ailincai D, Peptanariu D, Pinteala M, Marin L. Dynamic constitutional chemistry towards efficient nonviral vectors. Mater Sci Eng C Mater Biol Appl 2018; 94:635-646. [PMID: 30423749 DOI: 10.1016/j.msec.2018.10.002] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Received: 12/06/2017] [Revised: 09/11/2018] [Accepted: 10/01/2018] [Indexed: 10/28/2022]
Abstract
Dynamic constitutional chemistry has been used to design nonviral vectors for gene transfection. Their design has been thought in order to fulfill ab initio the main requirements for gene therapy. As building blocks were used hyperbranched PEI as hydrophilic part and benzentrialdehyde and a diamine linear siloxane as hydrophobic part, connected through reversible imine linkages. The obtaining of the envisaged structures has been confirmed by NMR and FTIR spectroscopy. The dynamic synthesized amphiphiles proved to be able to self-assemble in nano-sized spherical entities as was demonstrated by TEM and DLS, characterized by a narrow dimensional polydispersity. Agarose gel electrophoresis proved the ability of the synthesized compounds to bind DNA, while TEM revealed the spherical morphology of the formed polyplexes. As a proof of the concept, the nonviral vectors promoted an efficient transfection on HeLa cells, demonstrating that dynamic constitutional chemistry can be an important tool in the development of this domain.
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Affiliation(s)
- Daniela Ailincai
- Petru Poni Institute of Macromolecular Chemistry, Iasi, Romania.
| | | | | | - Luminita Marin
- Petru Poni Institute of Macromolecular Chemistry, Iasi, Romania
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David G, Turin-Moleavin I, Ursu LE, Peptanariu D, Ailincai D. Multilayer biopolymer/poly(ε-caprolactone)/polycation nanoparticles. Iran Polym J 2018. [DOI: 10.1007/s13726-018-0629-2] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
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Bejan A, Ailincai D, Simionescu BC, Marin L. Chitosan hydrogelation with a phenothiazine based aldehyde: a synthetic approach toward highly luminescent biomaterials. Polym Chem 2018. [DOI: 10.1039/c7py01678f] [Citation(s) in RCA: 30] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/20/2022]
Abstract
Hydrogelation of chitosan with a photoactive aldehyde via covalent dynamic chemistry proved an original approach towards efficient luminescent biomaterials.
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Affiliation(s)
- Andrei Bejan
- “Petru Poni” Institute of Macromolecular Chemistry
- Romanian Academy
- 700487 Iasi
- Romania
| | - Daniela Ailincai
- “Petru Poni” Institute of Macromolecular Chemistry
- Romanian Academy
- 700487 Iasi
- Romania
| | - Bogdan C. Simionescu
- “Petru Poni” Institute of Macromolecular Chemistry
- Romanian Academy
- 700487 Iasi
- Romania
- Department of Synthetic and Natural Polymers
| | - Luminita Marin
- “Petru Poni” Institute of Macromolecular Chemistry
- Romanian Academy
- 700487 Iasi
- Romania
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Marin L, Ailincai D, Morariu S, Tartau-Mititelu L. Development of biocompatible glycodynameric hydrogels joining two natural motifs by dynamic constitutional chemistry. Carbohydr Polym 2017; 170:60-71. [PMID: 28522004 DOI: 10.1016/j.carbpol.2017.04.055] [Citation(s) in RCA: 39] [Impact Index Per Article: 5.6] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/20/2017] [Revised: 04/19/2017] [Accepted: 04/20/2017] [Indexed: 11/27/2022]
Abstract
The paper focusses on the synthesis of novel hydrogels by joining natural biodegradable compounds with the aim to achieve biocompatible materials for bio related applications. The hydrogels were prepared from chitosan and citral by constitutional dynamic chemistry, incorporating both molecular and supramolecular dynamic features. The hydrophobic flexible citral has been reversible immobilized onto the hydrophilic chitosan backbone via imine bonds to form amphiphilic glycodynamers, which further self-ordered through supramolecular interactions into a 3D-network of biodynameric hydrogel. The synthetic pathway has been demonstrated by NMR and FTIR spectroscopy, X-ray diffraction and polarized light microscopy. Studies of the hydrogel morphology revealed a 3D porous microstructure, whose pores size correlated with the crosslinking degree. Rheological investigations evidenced high elasticity, thermo-responsiveness and thixotropic behavior. As a proof of the concept, the hydrogels proved in vivo biocompatibility on laboratory mice. The paper successfully implements the constitutional dynamic chemistry in generation of chitosan high performance hydrogels.
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Affiliation(s)
- Luminita Marin
- "Petru Poni" Institute of Macromolecular Chemistry of Romanian Academy, Iasi, Romania.
| | - Daniela Ailincai
- "Petru Poni" Institute of Macromolecular Chemistry of Romanian Academy, Iasi, Romania
| | - Simona Morariu
- "Petru Poni" Institute of Macromolecular Chemistry of Romanian Academy, Iasi, Romania
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Ailincai D, Marin L, Morariu S, Mares M, Bostanaru AC, Pinteala M, Simionescu BC, Barboiu M. Dual crosslinked iminoboronate-chitosan hydrogels with strong antifungal activity against Candida planktonic yeasts and biofilms. Carbohydr Polym 2016; 152:306-316. [PMID: 27516277 DOI: 10.1016/j.carbpol.2016.07.007] [Citation(s) in RCA: 58] [Impact Index Per Article: 7.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/04/2016] [Revised: 06/29/2016] [Accepted: 07/02/2016] [Indexed: 02/06/2023]
Abstract
Chitosan based hydrogels are a class of cross-linked materials intensely studied for their biomedical, industrial and environmental application, but their biomedical use is limited because of the toxicity of different organic crosslinkers. To overcome this disadvantage, a new strategy to produce supramolecular chitosan hydrogels using low molecular weight compounds able to form covalent linkages and H-bonds to give a dual crosslinking is proposed. For this purpose we used 2-formylphenylboronic acid, which brings the advantage of imine stabilization via iminoboronate formation and potential antifungal activity due to the presence of boric acid residue. FTIR and NMR spectroscopy indicated that the gelling process took place by chemo-physical crosslinking forming a dual iminoboronate-chitosan network. Further, X-ray diffraction demonstrated a three-dimensional nanostructuring of the iminoboronate network with consequences on the micrometer-scale morphology and on the improvement of mechanical properties, as demonstrated by SEM and rheological investigation. The hydrogels proved strong antifungal activity against Candida planktonic yeasts and biofilms, promising to be a friendly treatment of the recurrent vulvovaginitis infections.
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Affiliation(s)
- Daniela Ailincai
- "Petru Poni" Institute of Macromolecular Chemistry of Romanian Academy, 41A, Aleea Gr. Ghica Voda, Iasi, Romania
| | - Luminita Marin
- "Petru Poni" Institute of Macromolecular Chemistry of Romanian Academy, 41A, Aleea Gr. Ghica Voda, Iasi, Romania.
| | - Simona Morariu
- "Petru Poni" Institute of Macromolecular Chemistry of Romanian Academy, 41A, Aleea Gr. Ghica Voda, Iasi, Romania
| | - Mihai Mares
- "Ion Ionescu de la Brad" University, Laboratory of Antimicrobial Chemotherapy, 8, Aleea Sadoveanu, Iasi, Romania
| | - Andra-Cristina Bostanaru
- "Ion Ionescu de la Brad" University, Laboratory of Antimicrobial Chemotherapy, 8, Aleea Sadoveanu, Iasi, Romania
| | - Mariana Pinteala
- "Petru Poni" Institute of Macromolecular Chemistry of Romanian Academy, 41A, Aleea Gr. Ghica Voda, Iasi, Romania
| | - Bogdan C Simionescu
- "Petru Poni" Institute of Macromolecular Chemistry of Romanian Academy, 41A, Aleea Gr. Ghica Voda, Iasi, Romania; "Gheorghe Asachi" Technical University of Iasi, 73, Bd. Dimitrie Mangeron, Iasi, Romania
| | - Mihai Barboiu
- "Petru Poni" Institute of Macromolecular Chemistry of Romanian Academy, 41A, Aleea Gr. Ghica Voda, Iasi, Romania; Institut Européen des Membranes, F-34095, Place Eugène Bataillon, Montpellier, France
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Marin L, Ailincai D, Calin M, Stan D, Constantinescu CA, Ursu L, Doroftei F, Pinteala M, Simionescu BC, Barboiu M. Dynameric Frameworks for DNA Transfection. ACS Biomater Sci Eng 2015; 2:104-111. [DOI: 10.1021/acsbiomaterials.5b00423] [Citation(s) in RCA: 18] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
Affiliation(s)
- Luminita Marin
- INTELCENTRU, “Petru Poni” Institute of Macromolecular Chemistry of Romanian Academy, 41A Aleea Gr. Ghica Voda, Iasi, Romania
| | - Daniela Ailincai
- INTELCENTRU, “Petru Poni” Institute of Macromolecular Chemistry of Romanian Academy, 41A Aleea Gr. Ghica Voda, Iasi, Romania
| | - Manuela Calin
- “Nicolae Simionescu” Institute of Cellular Biology and Pathology, 050568, Bucharest, Romania
| | - Daniela Stan
- “Nicolae Simionescu” Institute of Cellular Biology and Pathology, 050568, Bucharest, Romania
| | | | - Laura Ursu
- INTELCENTRU, “Petru Poni” Institute of Macromolecular Chemistry of Romanian Academy, 41A Aleea Gr. Ghica Voda, Iasi, Romania
| | - Florica Doroftei
- INTELCENTRU, “Petru Poni” Institute of Macromolecular Chemistry of Romanian Academy, 41A Aleea Gr. Ghica Voda, Iasi, Romania
| | - Mariana Pinteala
- INTELCENTRU, “Petru Poni” Institute of Macromolecular Chemistry of Romanian Academy, 41A Aleea Gr. Ghica Voda, Iasi, Romania
| | - Bogdan C. Simionescu
- INTELCENTRU, “Petru Poni” Institute of Macromolecular Chemistry of Romanian Academy, 41A Aleea Gr. Ghica Voda, Iasi, Romania
| | - Mihail Barboiu
- Adaptive
Supramolecular Nanosystems Group, Institut Européen des Membranes, ENSCM/UM/UMR-CNRS 5635, Pl. Eugène Bataillon, CC 047, 34095 Montpellier, Cedex 5, France
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Marin L, Ailincai D, Mares M, Paslaru E, Cristea M, Nica V, Simionescu BC. Imino-chitosan biopolymeric films. Obtaining, self-assembling, surface and antimicrobial properties. Carbohydr Polym 2015; 117:762-770. [DOI: 10.1016/j.carbpol.2014.10.050] [Citation(s) in RCA: 74] [Impact Index Per Article: 8.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/06/2014] [Revised: 10/15/2014] [Accepted: 10/16/2014] [Indexed: 11/26/2022]
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Ailincai D, Ritter H. Cyclodextrin-poly(ε-caprolactone) based nanoparticles able to complex phenolphthalein and adamantyl carboxylate. Beilstein J Nanotechnol 2014; 5:651-657. [PMID: 24991501 PMCID: PMC4077308 DOI: 10.3762/bjnano.5.76] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Figures] [Subscribe] [Scholar Register] [Received: 01/10/2014] [Accepted: 04/14/2014] [Indexed: 06/03/2023]
Abstract
A new compound composed of poly(ε-caprolactone) and β-cyclodextrin (β-CD) was synthesized by click chemistry. This compound was used to obtain stable nanoparticles, which have been proven to be able to complex phenolphthalein and adamantyl carboxylate. The nanoparticles are characterized by a distinct morphology, i.e., a hydrophobic core formed by the polyester chain and a shell containing the CD part. Moreover, the formed nanoparticles have been proven to encapsulate umbelliferone in the polyester phase, which may serve as an example for the uptake of a drug. The formed nanoparticles were characterized in terms of sizes and morphology by both DLS and TEM.
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Affiliation(s)
- Daniela Ailincai
- Centre of Advanced Research in Bionanoconjugates and Biopolymers, “Petru Poni” Institute of Macromolecular Chemistry of Romanian Academy, 41A Aleea Grigore Ghica Voda, 700487 Iasi, Romania
| | - Helmut Ritter
- Heinrich-Heine-Universität, Institut für Organische Chemie und Makromolekulare Chemie, Geb. 26.33, Eb. 00, Universitätsstr. 1, 40225 Düsseldorf, Germany
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Abstract
PDLC composites with narrow size polydispersity and radial droplet configuration were obtained using polyvinyl alcohol boric acid as carrying matrix.
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Affiliation(s)
- Luminita Marin
- “Petru Poni” Institute of Macromolecular Chemistry
- Iasi, Romania
| | | | - Elena Paslaru
- “Petru Poni” Institute of Macromolecular Chemistry
- Iasi, Romania
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