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Zaharia MM, Bucatariu F, Karayianni M, Lotos ED, Mihai M, Pispas S. Synthesis of Thermoresponsive Chitosan- graft-Poly( N-isopropylacrylamide) Hybrid Copolymer and Its Complexation with DNA. Polymers (Basel) 2024; 16:1315. [PMID: 38794509 PMCID: PMC11124826 DOI: 10.3390/polym16101315] [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: 03/22/2024] [Revised: 05/01/2024] [Accepted: 05/03/2024] [Indexed: 05/26/2024] Open
Abstract
A hybrid synthetic-natural, thermoresponsive graft copolymer composed of poly(N-isopropyl acrylamide) (PNIPAM) side chains, prepared via RAFT polymerization, and a chitosan (Chit) polysaccharide backbone, was synthesized via radical addition-fragmentation reactions using the "grafting to" technique, in aqueous solution. ATR-FTIR, TGA, polyelectrolyte titrations and 1H NMR spectroscopy were employed in order to validate the Chit-g-PNIPAM copolymer chemical structure. Additionally, 1H NMR spectra and back conductometric titration were utilized to quantify the content of grafted PNIPAM side chains. The resulting graft copolymer contains dual functionality, namely both pH responsive free amino groups, with electrostatic complexation/coordination properties, and thermoresponsive PNIPAM side chains. Particle size measurements via dynamic light scattering (DLS) were used to study the thermoresponsive behavior of the Chit-g-PNIPAM copolymer. Thermal properties examined by TGA showed that, by the grafting modification with PNIPAM, the Chit structure became more thermally stable. The lower critical solution temperature (LCST) of the copolymer solution was determined by DLS measurements at 25-45 °C. Furthermore, dynamic and electrophoretic light scattering measurements demonstrated that the Chit-g-PNIPAM thermoresponsive copolymer is suitable of binding DNA molecules and forms nanosized polyplexes at different amino to phosphate groups ratios, with potential application as gene delivery systems.
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Affiliation(s)
- Marius-Mihai Zaharia
- Petru Poni Institute of Macromolecular Chemistry, 41A Grigore Ghica Voda Alley, 700487 Iasi, Romania; (M.-M.Z.); (F.B.); (M.K.); (E.-D.L.)
| | - Florin Bucatariu
- Petru Poni Institute of Macromolecular Chemistry, 41A Grigore Ghica Voda Alley, 700487 Iasi, Romania; (M.-M.Z.); (F.B.); (M.K.); (E.-D.L.)
| | - Maria Karayianni
- Petru Poni Institute of Macromolecular Chemistry, 41A Grigore Ghica Voda Alley, 700487 Iasi, Romania; (M.-M.Z.); (F.B.); (M.K.); (E.-D.L.)
| | - Elena-Daniela Lotos
- Petru Poni Institute of Macromolecular Chemistry, 41A Grigore Ghica Voda Alley, 700487 Iasi, Romania; (M.-M.Z.); (F.B.); (M.K.); (E.-D.L.)
| | - Marcela Mihai
- Petru Poni Institute of Macromolecular Chemistry, 41A Grigore Ghica Voda Alley, 700487 Iasi, Romania; (M.-M.Z.); (F.B.); (M.K.); (E.-D.L.)
| | - Stergios Pispas
- Petru Poni Institute of Macromolecular Chemistry, 41A Grigore Ghica Voda Alley, 700487 Iasi, Romania; (M.-M.Z.); (F.B.); (M.K.); (E.-D.L.)
- Theoretical and Physical Chemistry Institute, National Hellenic Research Foundation, 48 Vassileos Constantinou Ave., 116 35 Athens, Greece
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The Impact of Polyethylene Glycol-Modified Chitosan Scaffolds on the Proliferation and Differentiation of Osteoblasts. Int J Biomater 2023; 2023:4864492. [PMID: 36636323 PMCID: PMC9831697 DOI: 10.1155/2023/4864492] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/18/2022] [Revised: 12/20/2022] [Accepted: 12/24/2022] [Indexed: 01/05/2023] Open
Abstract
The objective of this study was to investigate the influence of polyethylene glycol (PEG) incorporated chitosan scaffolds on osteoblasts proliferation and differentiation. The chitosan polymer was initially modified by the predetermined concentration of the photoreactive azido group for UV-crosslinking and with RGD peptides (N-acetyl-GRGDSPGYG-amide). The PEG was mixed at different ratios (0, 10, and 20 wt%) with modified chitosan in 96-well tissue culture polystyrene plates to prepare CHI-100, CHI-90, and CHI-80 scaffolds. PEG-containing scaffolds exhibited bigger pore size and higher water content compared to unmodified chitosan scaffolds. After 10 days of incubation, the cell number of CHI-90 (1.1 × 106 cells/scaffold) surpasses that of CHI-100 (9.2 × 105 cells/scaffold) and the cell number of CHI-80 (7.6 × 105 cells/scaffold) were significantly lower. The ALP activity of CHI-90 was the highest on the fifth day indicating the favored osteoblasts' early-stage differentiation. Moreover, after 14 days of osteogenic culture, calcium deposition in the CHI-90 scaffolds (2.7 μmol Ca/scaffold) was significantly higher than the control (2.2 μmol Ca/scaffold) whereas on CHI-80 was 1.9 μmol/scaffold. The results demonstrate that PEG-incorporated chitosan scaffolds favored osteoblasts proliferation and differentiation; however, mixing relatively excess PEG (≥20% wt.) had a negative impact on osteoblasts proliferation and differentiation.
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Biocomposite Materials Based on Poly(3-hydroxybutyrate) and Chitosan: A Review. Polymers (Basel) 2022; 14:polym14245549. [PMID: 36559916 PMCID: PMC9782520 DOI: 10.3390/polym14245549] [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: 10/25/2022] [Revised: 12/03/2022] [Accepted: 12/16/2022] [Indexed: 12/23/2022] Open
Abstract
One of the important directions in the development of modern medical devices is the search and creation of new materials, both synthetic and natural, which can be more effective in their properties than previously used materials. Traditional materials such as metals, ceramics, and synthetic polymers used in medicine have certain drawbacks, such as insufficient biocompatibility and the emergence of an immune response from the body. Natural biopolymers have found applications in various fields of biology and medicine because they demonstrate a wide range of biological activity, biodegradability, and accessibility. This review first described the properties of the two most promising biopolymers belonging to the classes of polyhydroxyalkanoates and polysaccharides-polyhydroxybutyrate and chitosan. However, homopolymers also have some disadvantages, overcome which becomes possible by creating polymer composites. The article presents the existing methods of creating a composite of two polymers: copolymerization, electrospinning, and different ways of mixing, with a description of the properties of the resulting compositions. The development of polymer composites is a promising field of material sciences, which allows, based on the combination of existing substances, to develop of materials with significantly improved properties or to modify of the properties of each of their constituent components.
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Viscoelastic and Properties of Amphiphilic Chitin in Plasticised Polylactic Acid/Starch Biocomposite. Polymers (Basel) 2022; 14:polym14112268. [PMID: 35683940 PMCID: PMC9182625 DOI: 10.3390/polym14112268] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/07/2022] [Revised: 05/28/2022] [Accepted: 05/31/2022] [Indexed: 12/12/2022] Open
Abstract
The enhancement of the PLA thermomechanical properties is significant due to its suitability as a replacement for primary synthetic polymer use in diverse industrial production. The amphiphilic chitin was used as a compatibilizer in PLA/starch biocomposite. The properties of plasticised polylactic acid blended with starch, and amphiphilic chitin was studied for enhanced thermomechanical and viscoelastic properties. Chitin was modified using acetylated substitution reaction and blended with plasticised PLA/starch biocomposite. The biocomposite was prepared with combined compression and melt extrusion techniques. The biocomposite’s thermomechanical, thermal, mechanical, and morphological properties were studied using dynamic mechanical analysis, TGA-DSC, tensile test, and scanning electron microscopy. The storage and loss modulus were significantly enhanced with increased amphiphilic chitin content. Similarly, the single peak of tan delta showed good miscibility of the polymeric blend. Additionally, the modulus increases with frequency change from 1 Hz to 10 Hz. The thermal stability of the biocomposite was observed to be lower than the neat PLA. The tensile properties of the biocomposite increased significantly more than the neat PLA, with P4S4C having the highest tensile strength and modulus of 87 MPa and 7600 MPa. The SEM images show good miscibility with no significant void in the fractured surface. The viscoelastic properties of PLA were enhanced considerably with plasticizer and amphiphilic chitin with improved biodegradability. The properties of the biocomposite can be adapted for various industrial applications.
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Olaiya NG, Obaseki OS, Mersal GAM, Ibrahim MM, Hessien MM, Grace OF, Afzal A, Khanam T, Rashedi A. Functional miscibility and thermomechanical properties enhancement of substituted phthalic acetylated modified chitin filler in biopolymer composite. ROYAL SOCIETY OPEN SCIENCE 2022; 9:211411. [PMID: 35706656 PMCID: PMC9156934 DOI: 10.1098/rsos.211411] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Figures] [Subscribe] [Scholar Register] [Received: 09/02/2021] [Accepted: 05/06/2022] [Indexed: 05/03/2023]
Abstract
The miscibility between hydrophobic and hydrophilic biopolymers has been of significant challenge. This study used a novel simplified chitin modification method to produce phthalic chitin using phthalic anhydride in a substitution reaction. The FT-IR functional group analysis was used to confirm the substitution reaction. The modified chitin was used as compatibilizer in polylactic acid (PLA)/starch biocomposite to enhance its properties. The biocomposite was prepared using melt extrusion and compression moulding technique. The biocomposite's morphological, thermomechanical and water absorption properties were characterized using scanning electron microscope, tensile test, dynamic mechanical analysis, thermogravimetry analysis, differential scanning calorimetry, thickness swelling and water absorption test. The FT-IR study shows a successful substitution reaction of the amine hydrogen ion present in the chitin as opposed to substituting the hydrogen ion in the hydroxide group. The tensile and impact properties of biocomposite incorporated with modified chitin showed better results compared with other samples. The SEM images showed uniform miscibility of the modified biocomposite. The dynamic mechanical analysis showed improved modulus value with the incorporation of modified chitin. The thermal properties showed improved thermal stability of the modified biocomposite. Furthermore, the percentage of water absorbed by biocomposite with modified chitin is reduced compared with the PLA/starch biocomposite. The produced biodegradable ternary blend can be used as a substitute for plastics in industrial applications.
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Affiliation(s)
- N. G. Olaiya
- Department of Industrial and Production Engineering, Federal University of Technology Akure, PMB 704, Ondo state, Nigeria
| | - O. S. Obaseki
- Department of Physical Sciences, Landmark University, PMB 1001, Omu-Aran, Kwara State, Nigeria
| | - Gaber A. M. Mersal
- Department of Chemistry, College of Science, Taif University, P.O. Box 11099, Taif 21944, Saudi Arabia
| | - Mohamed M. Ibrahim
- Department of Chemistry, College of Science, Taif University, P.O. Box 11099, Taif 21944, Saudi Arabia
| | - Mahmoud M. Hessien
- Department of Chemistry, College of Science, Taif University, P.O. Box 11099, Taif 21944, Saudi Arabia
| | | | - Asif Afzal
- Department of Mechanical Engineering, School of Technology, Glocal University, Delhi-Yamunotri, Marg, SH-57, Mirzapur pole, Saharanpur District, Uttar Pradesh 247121, India
- University Centre for Research and Development, Department of Mechanical Engineering, Chandigarh University, Gharuan Mohali, Punjab, India
| | - Taslima Khanam
- College of Engineering, I.T. and Environment, Charles Darwin University, Ellengowan Drive, Casuarina, NT 0810, Australia
| | - Ahmad Rashedi
- College of Engineering, I.T. and Environment, Charles Darwin University, Ellengowan Drive, Casuarina, NT 0810, Australia
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Demina TS, Akopova TA, Zelenetsky AN. Materials Based on Chitosan and Polylactide: From Biodegradable Plastics to Tissue Engineering Constructions. POLYMER SCIENCE SERIES C 2021. [DOI: 10.1134/s1811238221020028] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 01/01/2023]
Abstract
Abstract
The transition to green chemistry and biodegradable polymers is a logical stage in the development of modern chemical science and technology. In the framework of this review, the advantages, disadvantages, and potential of biodegradable polymers of synthetic and natural origin are compared using the example of polylactide and chitosan as traditional representatives of these classes of polymers, and the possibilities of their combination via obtaining composite materials or copolymers are assessed. The mechanochemical approach to the synthesis of graft copolymers of chitosan with oligolactides/polylactides is considered in more detail.
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Nasution H, Olaiya NG, Haafiz MKM, Abdullah CK, Bakar SA, Olaiya FG, Mohamed A, H. P. S. AK. The role of amphiphilic chitosan in hybrid nanocellulose–reinforced polylactic acid biocomposite. POLYM ADVAN TECHNOL 2021. [DOI: 10.1002/pat.5355] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/12/2022]
Affiliation(s)
- H. Nasution
- Department of Chemical Engineering, Faculty of Engineering Universitas Sumatera Utara Medan 20155 Indonesia
| | - Niyi G. Olaiya
- School of Industrial Technology, Universiti Sains Malaysia Gelugor 11800 Malaysia
| | - M. K. Mohamad Haafiz
- School of Industrial Technology, Universiti Sains Malaysia Gelugor 11800 Malaysia
| | - C. K. Abdullah
- School of Industrial Technology, Universiti Sains Malaysia Gelugor 11800 Malaysia
| | - Suriani Abu Bakar
- Nanotechnology Research Centre, Faculty of Science and Mathematics Universiti Pendidikan Sultan Idris Tanjong Malim 35900 Malaysia
| | - Funmilayo G. Olaiya
- Department of Chemical Engineering, Faculty of Engineering Universitas Sumatera Utara Medan 20155 Indonesia
| | - Azmi Mohamed
- Nanotechnology Research Centre, Faculty of Science and Mathematics Universiti Pendidikan Sultan Idris Tanjong Malim 35900 Malaysia
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Kopylov AS, Kaplin VS, Glagolev NN, Solovieva AB. Polylactide Methacrylation in Supercritical Carbon Dioxide. RUSSIAN JOURNAL OF PHYSICAL CHEMISTRY B 2021. [DOI: 10.1134/s1990793120070088] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/23/2022]
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Demina TS, Kuryanova AS, Bikmulina PY, Aksenova NA, Efremov YM, Khaibullin ZI, Ivanov PL, Kosheleva NV, Timashev PS, Akopova TA. Multicomponent Non-Woven Fibrous Mats with Balanced Processing and Functional Properties. Polymers (Basel) 2020; 12:E1911. [PMID: 32854227 PMCID: PMC7563478 DOI: 10.3390/polym12091911] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/30/2020] [Revised: 08/15/2020] [Accepted: 08/19/2020] [Indexed: 12/17/2022] Open
Abstract
The mimicking of the architectonics of native tissue, biodegradable non-woven fibrous mats is one of the most promising forms of scaffolding for tissue engineering. The key properties needed for their successful application in vivo, such as biodegradability, biocompatibility, morphology, mechanical properties, etc., rely on their composition and appropriate 3D structure. A multicomponent system based on biodegradable synthetic (polycaprolactone, oligo-/polylactide) and natural (chitosan, gelatin) polymers, providing the desired processing characteristics and functionality to non-woven mats fabricated via the electrospinning technique, was developed. The solid-state reactive blending of these components provided a one-step synthesis of amphiphilic graft copolymer with an ability to form stable ultra-fine dispersions in chlorinated solvents, which could be successfully used as casting solvents for the electrospinning technique. The synthesized graft copolymer was analyzed with the aim of fractional analysis, dynamic laser scattering, FTIR-spectroscopy and DSC. Casting solution characteristics, namely viscosity, surface tension, and electroconductivity, as well as electrospinning parameters, were studied and optimized. The morphology, chemical structure of the surface layer, mechanical properties and cytocompatibility were analyzed to confirm the appropriate functionality of the formed fibrous materials as scaffolds for tissue engineering.
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Affiliation(s)
- Tatiana S. Demina
- Enikolopov Institute of Synthetic Polymeric Materials, Russian Academy of Sciences (ISPM RAS), 70 Profsoyuznaya st., 117393 Moscow, Russia; (Z.I.K.); (P.L.I.); (T.A.A.)
- Institute for Regenerative Medicine, Sechenov University, 8-2 Trubetskaya st., 119991 Moscow, Russia; (A.S.K.); (P.Y.B.); (N.A.A.); (Y.M.E.); (P.S.T.)
| | - Anastasia S. Kuryanova
- Institute for Regenerative Medicine, Sechenov University, 8-2 Trubetskaya st., 119991 Moscow, Russia; (A.S.K.); (P.Y.B.); (N.A.A.); (Y.M.E.); (P.S.T.)
- Semenov Institute of Chemical Physics, Russian Academy of Sciences, 4 Kosygina st., 119991 Moscow, Russia
| | - Polina Y. Bikmulina
- Institute for Regenerative Medicine, Sechenov University, 8-2 Trubetskaya st., 119991 Moscow, Russia; (A.S.K.); (P.Y.B.); (N.A.A.); (Y.M.E.); (P.S.T.)
| | - Nadejda A. Aksenova
- Institute for Regenerative Medicine, Sechenov University, 8-2 Trubetskaya st., 119991 Moscow, Russia; (A.S.K.); (P.Y.B.); (N.A.A.); (Y.M.E.); (P.S.T.)
- Semenov Institute of Chemical Physics, Russian Academy of Sciences, 4 Kosygina st., 119991 Moscow, Russia
| | - Yuri M. Efremov
- Institute for Regenerative Medicine, Sechenov University, 8-2 Trubetskaya st., 119991 Moscow, Russia; (A.S.K.); (P.Y.B.); (N.A.A.); (Y.M.E.); (P.S.T.)
| | - Zulfar I. Khaibullin
- Enikolopov Institute of Synthetic Polymeric Materials, Russian Academy of Sciences (ISPM RAS), 70 Profsoyuznaya st., 117393 Moscow, Russia; (Z.I.K.); (P.L.I.); (T.A.A.)
| | - Pavel L. Ivanov
- Enikolopov Institute of Synthetic Polymeric Materials, Russian Academy of Sciences (ISPM RAS), 70 Profsoyuznaya st., 117393 Moscow, Russia; (Z.I.K.); (P.L.I.); (T.A.A.)
| | - Nastasia V. Kosheleva
- Faculty of Biology, Lomonosov Moscow State University, 12-1, Leninskie Gory, 119234 Moscow, Russia;
- FSBSI “Institute of General Pathology and Pathophysiology”, 8, Baltiyskaya st., 125315 Moscow, Russia
| | - Peter S. Timashev
- Institute for Regenerative Medicine, Sechenov University, 8-2 Trubetskaya st., 119991 Moscow, Russia; (A.S.K.); (P.Y.B.); (N.A.A.); (Y.M.E.); (P.S.T.)
- Semenov Institute of Chemical Physics, Russian Academy of Sciences, 4 Kosygina st., 119991 Moscow, Russia
- Chemistry Department, Lomonosov Moscow State University, 1-3 Leninskiye Gory, 119991 Moscow, Russia
| | - Tatiana A. Akopova
- Enikolopov Institute of Synthetic Polymeric Materials, Russian Academy of Sciences (ISPM RAS), 70 Profsoyuznaya st., 117393 Moscow, Russia; (Z.I.K.); (P.L.I.); (T.A.A.)
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Biofabrication of Chitosan-Based Nanomedicines and Its Potential Use for Translational Ophthalmic Applications. APPLIED SCIENCES-BASEL 2020. [DOI: 10.3390/app10124189] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 02/08/2023]
Abstract
Drug delivery to the anterior and posterior segment of eye remains a challenge. Nanoparticle-mediated drug delivery has indicated some promise. The presented review aims to summarize recent advancements in chitosan-based nanotherapies for ocular drug delivery and the challenges encountered during the process. Significant research using chitosan, a cationic linear polymer, is being conducted for ocular drug delivery. A vast number of publications exploit the mucoadhesive properties of the polymer, which arise due to interactions between the amino acids of chitosan and the sialic acid residues in mucous. The high degree of crosslinking in chitosan nanoparticles facilitates a dramatic increase in ocular drug retention of the desired drug, which subsequently helps in ocular penetration and improving the bioavailability of the drugs. A noted decrease in the initial burst of the drug is the basis for developing sustained drug release formulation using biodegradable and biocompatible chitosan polymer. In vitro as well as in vivo studies have indicated enhancement in the uptake, accumulation, and removal of chitosan nanoparticles from the site of delivery. In summary, chitosan- or modified-chitosan-based nanoparticles are being widely tested as drug carriers for treatment of bacterial and viral infections, glaucoma, age-related macular degeneration, and diabetic retinopathy.
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Ziminska M, Wilson JJ, McErlean E, Dunne N, McCarthy HO. Synthesis and Evaluation of a Thermoresponsive Degradable Chitosan-Grafted PNIPAAm Hydrogel as a "Smart" Gene Delivery System. MATERIALS 2020; 13:ma13112530. [PMID: 32498464 PMCID: PMC7321466 DOI: 10.3390/ma13112530] [Citation(s) in RCA: 14] [Impact Index Per Article: 3.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 05/18/2020] [Revised: 05/28/2020] [Accepted: 05/29/2020] [Indexed: 12/18/2022]
Abstract
Thermoresponsive hydrogels demonstrate tremendous potential as sustained drug delivery systems. However, progress has been limited as formulation of a stable biodegradable thermosensitive hydrogel remains a significant challenge. In this study, free radical polymerization was exploited to formulate a biodegradable thermosensitive hydrogel characterized by sustained drug release. Highly deacetylated chitosan and N-isopropylacrylamide with distinctive physical properties were employed to achieve a stable, hydrogel network at body temperature. The percentage of chitosan was altered within the copolymer formulations and the subsequent physical properties were characterized using 1H-NMR, FTIR, and TGA. Viscoelastic, swelling, and degradation properties were also interrogated. The thermoresponsive hydrogels were loaded with RALA/pEGFP-N1 nanoparticles and release was examined. There was sustained release of nanoparticles over three weeks and, more importantly, the nucleic acid cargo remained functional and this was confirmed by successful transfection of the NCTC-929 fibroblast cell line. This tailored thermoresponsive hydrogel offers an option for sustained delivery of macromolecules over a prolonged considerable period.
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Affiliation(s)
- Monika Ziminska
- School of Pharmacy, Queen’s University of Belfast, 97 Lisburn Road, Belfast BT9 7BL, UK; (M.Z.); (J.J.W.); (E.M.)
| | - Jordan J. Wilson
- School of Pharmacy, Queen’s University of Belfast, 97 Lisburn Road, Belfast BT9 7BL, UK; (M.Z.); (J.J.W.); (E.M.)
- School of Chemistry and Chemical Engineering, Queen’s University of Belfast, Belfast BT9 5AG, UK
| | - Emma McErlean
- School of Pharmacy, Queen’s University of Belfast, 97 Lisburn Road, Belfast BT9 7BL, UK; (M.Z.); (J.J.W.); (E.M.)
| | - Nicholas Dunne
- School of Pharmacy, Queen’s University of Belfast, 97 Lisburn Road, Belfast BT9 7BL, UK; (M.Z.); (J.J.W.); (E.M.)
- School of Mechanical and Manufacturing Engineering, Dublin City University, Dublin 9, Ireland
- Centre for Medical Engineering Research, School of Mechanical and Manufacturing Engineering, Dublin City University, Dublin 9, Ireland
- Department of Mechanical and Manufacturing Engineering, School of Engineering, Trinity College Dublin, Dublin 2, Ireland
- Advanced Manufacturing Research Centre (I-Form), School of Mechanical and Manufacturing Engineering, Dublin City University, Glasnevin, Dublin 9, Ireland
- Advanced Materials and Bioengineering Research Centre (AMBER), Trinity College Dublin, Dublin 9, Ireland
- Advanced Processing Technology Research Centre, Dublin City University, Dublin 9, Ireland
- Trinity Centre for Biomedical Engineering, Trinity Biomedical Sciences Institute, Trinity College Dublin, Dublin 2, Ireland
- Correspondence: (N.D.); (H.O.M.); Tel.: +353-(0)1-7005712 (N.D.); +44-(0)28-90972149/1993 (H.O.M.)
| | - Helen O. McCarthy
- School of Pharmacy, Queen’s University of Belfast, 97 Lisburn Road, Belfast BT9 7BL, UK; (M.Z.); (J.J.W.); (E.M.)
- School of Chemical Sciences, Dublin City University, Dublin 9, Ireland
- Correspondence: (N.D.); (H.O.M.); Tel.: +353-(0)1-7005712 (N.D.); +44-(0)28-90972149/1993 (H.O.M.)
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Kaliva M, Georgopoulou A, Dragatogiannis DA, Charitidis CA, Chatzinikolaidou M, Vamvakaki M. Biodegradable Chitosan- graft-Poly(l-lactide) Copolymers For Bone Tissue Engineering. Polymers (Basel) 2020; 12:E316. [PMID: 32033024 PMCID: PMC7077469 DOI: 10.3390/polym12020316] [Citation(s) in RCA: 16] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/04/2020] [Revised: 01/25/2020] [Accepted: 01/28/2020] [Indexed: 12/11/2022] Open
Abstract
The design and synthesis of new biomaterials with adjustable physicochemical and biological properties for tissue engineering applications have attracted great interest. In this work, chitosan-graft-poly(l-lactide) (CS-g-PLLA) copolymers were prepared by chemically binding poly(l-lactide) (PLLA) chains along chitosan (CS) via the "grafting to" approach to obtain hybrid biomaterials that present enhanced mechanical stability, due to the presence of PLLA, and high bioactivity, conferred by CS. Two graft copolymers were prepared, CS-g-PLLA(80/20) and CS-g-PLLA(50/50), containing 82 wt % and 55 wt % CS, respectively. Degradation studies of compressed discs of the copolymers showed that the degradation rate increased with the CS content of the copolymer. Nanomechanical studies in the dry state indicated that the copolymer with the higher CS content had larger Young modulus, reduced modulus and hardness values, whereas the moduli and hardness decreased rapidly following immersion of the copolymer discs in alpha-MEM cell culture medium for 24 h. Finally, the bioactivity of the hybrid copolymers was evaluated in the adhesion and growth of MC3T3-E1 pre-osteoblastic cells. In vitro studies showed that MC3T3-E1 cells exhibited strong adhesion on both CS-g-PLLA graft copolymer films from the first day in cell culture, whereas the copolymer with the higher PLLA content, CS-g-PLLA(50/50), supported higher cell growth.
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Affiliation(s)
- Maria Kaliva
- Institute of Electronic Structure and Laser, Foundation for Research and Technology-Hellas (FORTH-IESL), 70013 Heraklion, Greece; (M.C.); (M.V.)
- Department of Materials Science and Technology, University of Crete, 70013 Heraklion, Greece;
| | - Anthie Georgopoulou
- Department of Materials Science and Technology, University of Crete, 70013 Heraklion, Greece;
| | - Dimitrios A. Dragatogiannis
- Research Unit of Advanced, Composite, Nano Materials & Nanotechnology, School of Chemical Engineering, National Technical University of Athens, 9 Heroon Polytechniou St., Zographou, 15780 Athens, Greece; (D.A.D.); (C.A.C.)
| | - Costas A. Charitidis
- Research Unit of Advanced, Composite, Nano Materials & Nanotechnology, School of Chemical Engineering, National Technical University of Athens, 9 Heroon Polytechniou St., Zographou, 15780 Athens, Greece; (D.A.D.); (C.A.C.)
| | - Maria Chatzinikolaidou
- Institute of Electronic Structure and Laser, Foundation for Research and Technology-Hellas (FORTH-IESL), 70013 Heraklion, Greece; (M.C.); (M.V.)
- Department of Materials Science and Technology, University of Crete, 70013 Heraklion, Greece;
| | - Maria Vamvakaki
- Institute of Electronic Structure and Laser, Foundation for Research and Technology-Hellas (FORTH-IESL), 70013 Heraklion, Greece; (M.C.); (M.V.)
- Department of Materials Science and Technology, University of Crete, 70013 Heraklion, Greece;
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Chen L, Sun Y, Sun W, Shah KJ, Xu Y, Zheng H. Efficient cationic flocculant MHCS-g-P(AM-DAC) synthesized by UV-induced polymerization for algae removal. Sep Purif Technol 2019. [DOI: 10.1016/j.seppur.2018.07.090] [Citation(s) in RCA: 39] [Impact Index Per Article: 7.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/09/2023]
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14
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Tiew SX, Misran M. Physicochemical properties of acylated low molecular weight chitosans. INT J POLYM MATER PO 2018. [DOI: 10.1080/00914037.2017.1362637] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/19/2022]
Affiliation(s)
- Shu Xian Tiew
- Department of Chemistry, Faculty of Science, University of Malaya, Kuala Lumpur, Malaysia
| | - Misni Misran
- Department of Chemistry, Faculty of Science, University of Malaya, Kuala Lumpur, Malaysia
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15
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Mochalova AE, Smirnova LA. State of the Art in the Targeted Modification of Chitosan. POLYMER SCIENCE SERIES B 2018. [DOI: 10.1134/s1560090418020045] [Citation(s) in RCA: 10] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 01/02/2023]
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16
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Intrinsic parameters for the synthesis and tuned properties of amphiphilic chitosan drug delivery nanocarriers. J Control Release 2017. [DOI: 10.1016/j.jconrel.2017.06.010] [Citation(s) in RCA: 56] [Impact Index Per Article: 8.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/09/2023]
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17
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Salama HE, Saad GR, Sabaa MW. Synthesis, characterization and antimicrobial activity of biguanidinylated chitosan- g -poly[( R )-3-hydroxybutyrate]. Int J Biol Macromol 2017; 101:438-447. [DOI: 10.1016/j.ijbiomac.2017.03.075] [Citation(s) in RCA: 20] [Impact Index Per Article: 2.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/14/2016] [Revised: 12/14/2016] [Accepted: 03/14/2017] [Indexed: 11/24/2022]
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18
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Esfandiarpour-Boroujeni S, Bagheri-Khoulenjani S, Mirzadeh H, Amanpour S. Fabrication and study of curcumin loaded nanoparticles based on folate-chitosan for breast cancer therapy application. Carbohydr Polym 2017; 168:14-21. [DOI: 10.1016/j.carbpol.2017.03.031] [Citation(s) in RCA: 75] [Impact Index Per Article: 10.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/04/2016] [Revised: 03/07/2017] [Accepted: 03/09/2017] [Indexed: 12/17/2022]
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19
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Balan V, Redinciuc V, Tudorachi N, Verestiuc L. Biotinylated N-palmitoyl chitosan for design of drug loaded self-assembled nanocarriers. Eur Polym J 2016. [DOI: 10.1016/j.eurpolymj.2016.06.014] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/16/2022]
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20
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Rogovina SZ. Biodegradable polymer composites based on synthetic and natural polymers of various classes. POLYMER SCIENCE SERIES C 2016. [DOI: 10.1134/s1811238216010100] [Citation(s) in RCA: 26] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/23/2022]
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21
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Zhan S, Liu N, Wang W, Chen S, Wang J. Preparation and characterization of chitosan-graft-poly(L-lactic acid) microparticles. POLYM ENG SCI 2016. [DOI: 10.1002/pen.24389] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/10/2022]
Affiliation(s)
- Shiping Zhan
- College of Environmental and Chemical Engineering, Dalian University; Dalian China
- Chemical and Environmental Protection Engineering Research Technology Center of Liaoning Province; Dalian China
| | - Nan Liu
- College of Environmental and Chemical Engineering, Dalian University; Dalian China
- Chemical and Environmental Protection Engineering Research Technology Center of Liaoning Province; Dalian China
| | - Weijing Wang
- College of Environmental and Chemical Engineering, Dalian University; Dalian China
- Chemical and Environmental Protection Engineering Research Technology Center of Liaoning Province; Dalian China
| | - Shuhua Chen
- College of Environmental and Chemical Engineering, Dalian University; Dalian China
- Chemical and Environmental Protection Engineering Research Technology Center of Liaoning Province; Dalian China
| | - Jingchang Wang
- College of Environmental and Chemical Engineering, Dalian University; Dalian China
- Chemical and Environmental Protection Engineering Research Technology Center of Liaoning Province; Dalian China
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22
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Pal AK, Katiyar V. Nanoamphiphilic Chitosan Dispersed Poly(lactic acid) Bionanocomposite Films with Improved Thermal, Mechanical, and Gas Barrier Properties. Biomacromolecules 2016; 17:2603-18. [DOI: 10.1021/acs.biomac.6b00619] [Citation(s) in RCA: 83] [Impact Index Per Article: 10.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
Affiliation(s)
- Akhilesh Kumar Pal
- Department
of Chemical Engineering, Indian Institute of Technology Guwahati, Assam, India
| | - Vimal Katiyar
- Department
of Chemical Engineering, Indian Institute of Technology Guwahati, Assam, India
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23
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Synthesis of new thermo/pH sensitive drug delivery systems based on tragacanth gum polysaccharide. Int J Biol Macromol 2016; 87:415-25. [DOI: 10.1016/j.ijbiomac.2016.03.005] [Citation(s) in RCA: 55] [Impact Index Per Article: 6.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/25/2015] [Revised: 02/28/2016] [Accepted: 03/03/2016] [Indexed: 11/17/2022]
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24
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Polylactide-based microspheres prepared using solid-state copolymerized chitosan and d , l -lactide. MATERIALS SCIENCE & ENGINEERING. C, MATERIALS FOR BIOLOGICAL APPLICATIONS 2016; 59:333-338. [DOI: 10.1016/j.msec.2015.09.094] [Citation(s) in RCA: 34] [Impact Index Per Article: 4.3] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Received: 03/02/2015] [Revised: 07/13/2015] [Accepted: 09/26/2015] [Indexed: 11/19/2022]
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25
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Riabtseva A, Mitina N, Grytsyna I, Boiko N, Garamus VM, Stryhanyuk H, Stoika R, Zaichenko A. Functional micelles formed by branched polymeric surfactants: Synthesis, characteristics, and application as nanoreactors and carriers. Eur Polym J 2016. [DOI: 10.1016/j.eurpolymj.2016.01.006] [Citation(s) in RCA: 16] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/26/2022]
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26
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Modeling and optimization of degree of folate grafted on chitosan and carboxymethyl-chitosan. Prog Biomater 2015; 5:1-8. [PMID: 26949593 PMCID: PMC4764624 DOI: 10.1007/s40204-015-0044-0] [Citation(s) in RCA: 13] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/03/2015] [Accepted: 11/05/2015] [Indexed: 11/01/2022] Open
Abstract
Chitosan is a cationic polysaccharide with great properties and so is considered as an attractive biopolymer. However, chitosan shows its antibacterial activity only in acidic environment and this restricts its uses. So water-soluble chitosan derivatives such as carboxymethyl chitosan could be good candidates for such biomedical applications. Modified chitosan with hydrophobic functional groups such as folate (FA) is able to make self-assembled nanoparticles in aqueous media. One of the most important factors affecting the properties of resulting nanoparticles such as size, morphology, amount and efficiency of drug loading and also drug release profile is the amount of FA groups grafted on the chitosan chains. In this study FA modified chitosan and carboxymethyl chitosan have been synthesized using folic acid, N-hydroxy succinimide (NHS), N, N-dicyclohexylcarbodiimide (DCC) and 1-ethyl-3-(3-dimethylaminopropyl) carbodiimide (EDC). The effect of molecular weight, degree of substitution of carboxymethyl hydrophilic group and primary molar ratio of folic acid to chitosan/carboxymethyl chitosan (CMCS) on degree of substitution of folate functional groups grafted on chitosan chains was modeled using a statistical software package (Design of Expert 8, Trial version). Degree of substitution of grafted folate was measured using UV/Vis spectroscopy. Results show that degree of substitution of CMC and molar ratio of folic acid to chitosan/carboxymethyl chitosan has direct effect on substitution degree of folate and molecular weight has an inverse impact. Also results show that molar ratio of folic acid to chitosan/(CMCS) has the most effect on substitution degree of folate and the proposed model is statistically valid to predict degree of substitution of FA groups on chitosan chains.
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27
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Tsverova NE, Mochalova AE, Morozov AG, Yunin PA, Smirnova LA, Grishin ID. Synthesis and properties of chitosan-polylactide compositions produced with the use of compatibilizers. POLYMER SCIENCE SERIES B 2015. [DOI: 10.1134/s1560090415030082] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/22/2022]
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28
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Abstract
Biobased and biodegradable polymers have become more and more interesting in view of waste management and crude oil depletion.
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Affiliation(s)
- Stijn Corneillie
- Polymer Chemistry and Materials
- Department of Chemistry
- KU Leuven
- Belgium
| | - Mario Smet
- Polymer Chemistry and Materials
- Department of Chemistry
- KU Leuven
- Belgium
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29
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Wang H, Zhang R, Cheng J, Liu H, Zhai L, Jiang S. Functional effectiveness and diffusion behavior of sodium lactate loaded chitosan/poly(l-lactic acid) film with antimicrobial activity. RSC Adv 2015. [DOI: 10.1039/c5ra21039a] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022] Open
Abstract
Functional effectiveness and diffusion behavior of sodium lactate loaded chitosan/poly(l-lactic acid) film prepared by coating method as an active packaging.
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Affiliation(s)
- Hualin Wang
- School of Chemistry and Chemical Engineering
- Hefei University of Technology
- Hefei
- People's Republic of China
- Anhui Institute of Agro-Products Intensive Processing Technology
| | - Ru Zhang
- School of Chemistry and Chemical Engineering
- Hefei University of Technology
- Hefei
- People's Republic of China
| | - Junfeng Cheng
- School of Chemistry and Chemical Engineering
- Hefei University of Technology
- Hefei
- People's Republic of China
| | - Huan Liu
- School of Chemistry and Chemical Engineering
- Hefei University of Technology
- Hefei
- People's Republic of China
| | - Linfeng Zhai
- School of Chemistry and Chemical Engineering
- Hefei University of Technology
- Hefei
- People's Republic of China
| | - Shaotong Jiang
- School of Biotechnology and Food Engineering
- Hefei University of Technology
- Hefei
- People's Republic of China
- Anhui Institute of Agro-Products Intensive Processing Technology
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30
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Yin D, Wu H, Liu C, Zhang J, Zhou T, Wu J, Wan Y. Fabrication of composition-graded collagen/chitosan–polylactide scaffolds with gradient architecture and properties. REACT FUNCT POLYM 2014. [DOI: 10.1016/j.reactfunctpolym.2014.07.017] [Citation(s) in RCA: 15] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/05/2023]
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31
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Affiliation(s)
- J. X. Yu
- Department of Material Science and EngineeringBeijing Institute of Petrochemical Technology, Beijing 102617, China
| | - T. Y. Yao
- Department of Material Science and EngineeringBeijing Institute of Petrochemical Technology, Beijing 102617, China
| | - Y. N. Zhang
- Department of Material Science and EngineeringBeijing Institute of Petrochemical Technology, Beijing 102617, China
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32
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Uchegbu IF, Carlos M, McKay C, Hou X, Schätzlein AG. Chitosan amphiphiles provide new drug delivery opportunities. POLYM INT 2014. [DOI: 10.1002/pi.4721] [Citation(s) in RCA: 18] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/15/2023]
Affiliation(s)
- Ijeoma F Uchegbu
- UCL School of Pharmacy; 29-39 Brunswick Square London WC1N 1AX UK
- Nanomerics Ltd; Approach Road St Albans AL1 1SR UK
| | - Margarida Carlos
- UCL School of Pharmacy; 29-39 Brunswick Square London WC1N 1AX UK
| | - Cameron McKay
- UCL School of Pharmacy; 29-39 Brunswick Square London WC1N 1AX UK
| | - Xueliang Hou
- UCL School of Pharmacy; 29-39 Brunswick Square London WC1N 1AX UK
| | - Andreas G Schätzlein
- UCL School of Pharmacy; 29-39 Brunswick Square London WC1N 1AX UK
- Nanomerics Ltd; Approach Road St Albans AL1 1SR UK
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33
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Niu XF, Tian F, Wang LZ, Li XM, Zhou G, Fan YB. Synthesis and characterization of chitosan-graft-poly(lactic acid) copolymer. CHINESE JOURNAL OF POLYMER SCIENCE 2013. [DOI: 10.1007/s10118-014-1369-1] [Citation(s) in RCA: 9] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 12/11/2022]
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34
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35
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Formation and characterization of chitosan-polylacticacid-polyethylene glycol-gelatin nanoparticles: a novel biosystem for controlled drug delivery. Carbohydr Polym 2013; 98:951-8. [PMID: 23987433 DOI: 10.1016/j.carbpol.2013.05.025] [Citation(s) in RCA: 56] [Impact Index Per Article: 5.1] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/14/2012] [Revised: 05/11/2013] [Accepted: 05/14/2013] [Indexed: 02/08/2023]
Abstract
Chitosan (CS)-polylacticacid (PLA)-polyethylene glycol (PEG)-gelatin (G) nanoparticles, a novel drug vehicle for the controlled release of an antitubercluosis drug, rifampicin (RIF) was developed and its chemical and biochemical activities were studied by various standard methods. The designed carriers CS, PEG and G nanoparticles were prepared by emulsion solvent evaporation technique, and then used for entrapping RIF. Linking was confirmed by FTIR spectroscopy. The surface morphology of the nanoparticles was studied using scanning electron microscope and polarizing microscope. The influence of process variables, on particle size, zeta potential and matrix entrapment of RIF was studied. The encapsulation and loading capacity were evaluated, and an in vitro release of RIF was assessed using the dialysis method. The effect of nanoencapsulation of RIF on the antibacterial activity of RIF against Mycobacterium strains was evaluated. The preliminary results clearly suggested that the cross linked CS-PLA-PEG-G matrix may be a potential polymeric carrier for controlled delivery of RIF.
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36
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Niu X, Wang L, Chen P, Li X, Zhou G, Feng Q, Fan Y. Emulsion Self-Assembly Synthesis of Chitosan/Poly(lactic-co
-glycolic acid) Stimuli-Responsive Amphiphiles. MACROMOL CHEM PHYS 2013. [DOI: 10.1002/macp.201200597] [Citation(s) in RCA: 11] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/06/2023]
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37
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Chitosan/PLA nanoparticles as a novel carrier for the delivery of anthraquinone: Synthesis, characterization and in vitro cytotoxicity evaluation. Colloids Surf B Biointerfaces 2013; 101:126-34. [DOI: 10.1016/j.colsurfb.2012.06.019] [Citation(s) in RCA: 62] [Impact Index Per Article: 5.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/16/2012] [Revised: 06/04/2012] [Accepted: 06/14/2012] [Indexed: 11/20/2022]
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38
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A review on comb-shaped amphiphilic polymers for hydrophobic drug solubilization. Ther Deliv 2012; 3:59-79. [PMID: 22833933 DOI: 10.4155/tde.11.130] [Citation(s) in RCA: 21] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/20/2022] Open
Abstract
Comb-shaped amphiphilic polymers are rapidly emerging as an alternative approach to amphiphilic block copolymers for hydrophobic drug solubilization. These polymers consist of a homopolymer or copolymer backbone to which hydrophobic and hydrophilic pendant groups can be grafted resulting in a comb-like architecture. The hydrophobic pendants may consist of homopolymers, copolymers and other low-molecular weight hydrophobic structures. In this review, we focus on hydrophobically modified preformed homopolymers. Comb-shaped amphiphilic polymers possess reduced critical aggregation concentration values compared with traditional surfactant micelles indicating increased stability with decreased disruption experienced on dilution. They have been fabricated with diverse architectures and multifunctional properties such as site-specific targeting and external stimuli-responsive nature. The application of comb-shaped amphiphilic polymers is expanding; here we report on the progress achieved so far in hydrophobic drug solubilization for both intravenous and oral delivery.
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Nano-hybrid carboxymethyl-hexanoyl chitosan modified with (3-aminopropyl)triethoxysilane for camptothecin delivery. Carbohydr Polym 2012; 89:632-9. [PMID: 24750768 DOI: 10.1016/j.carbpol.2012.03.066] [Citation(s) in RCA: 22] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/19/2012] [Revised: 03/19/2012] [Accepted: 03/21/2012] [Indexed: 11/23/2022]
Abstract
Silane-modified amphiphilic chitosan was synthesized by anchoring a silane coupling agent, (3-aminopropyl)triethoxysilane, to a novel amphiphilic carboxymethyl-hexanoyl chitosan (CHC). The chemical structure of this new organic-inorganic hybrid molecule was characterized by FTIR and 13C-, 29Si-nuclear magnetic resonance, while the structural evolution was examined using scanning electron microscopy (SEM), transmission electron microscopy (TEM), X-ray diffraction (XRD), and dynamic light scattering (DLS). Experimental results indicated a self-assembly behaviour of molecules into nanoparticles with a stable polygonal geometry, consisting of ordered silane layers of 6 nm in thickness. The self-assembly property was found to be influenced by chemical composition and concentration of silane incorporated, while the size can be varied by the amount of anchored silane. It was also demonstrated that such vesicle exhibited excellent cytocompatibility and cellular internalization capability in ARPE-19 cell line, and presented well-controlled encapsulation and release profiles for (S)-(+)-camptothecin. These unique properties render it as a potential drug delivery nanosystem.
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40
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Luo B, Yang J, Zhao J, Hsu C, Li J, Zhou C. Rapid synthesis and characterization of chitosan-g-poly(D,L-lactide) copolymers with hydroxyethyl chitosan as a macroinitiator under microwave irradiation. J Appl Polym Sci 2012. [DOI: 10.1002/app.35603] [Citation(s) in RCA: 21] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/07/2022]
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41
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Maloy SF, Martin GL, Atanassov P, Cooney MJ. Controlled deposition of structured polymer films: chemical and rheological factors in chitosan film formation. LANGMUIR : THE ACS JOURNAL OF SURFACES AND COLLOIDS 2012; 28:2589-2595. [PMID: 22220999 DOI: 10.1021/la203441r] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/31/2023]
Abstract
The technique of "spread coating" has been used to create thin films from solutions of deacetylated and butyl-modified chitosan polymer, and the effect of deposition rate on film thickness has been characterized. Results show that films of controlled thickness can be reproducibly produced and that hydrophobic modification of the polymer can extend the range over which a linear response between film thickness and deposition rate is achieved. Viscometry and fluorescence spectroscopy were also employed to characterize the micellar characteristics of solutions of both deacetylated and butyl-modified chitosan polymer. Although both deacetylated and butyl-modified chitosan solutions were found to have inter- and intramolecular interactions, as well as hydrophobic domains able to incorporate fluorophores, deacetylated chitosan was found to be more interconnected via intermolecular interactions at higher concentrations. These results are important as having the ability to understand how the introduction of hydrophobic modification, a technique shown to introduce solution-based micelle structure and micellar aggregates that support enzyme immobilization, affects film thickness and morphology of spread coated thin films will aid the long-term development and deployment of chitosan-based biofuel cell electrodes.
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Affiliation(s)
- Sedef F Maloy
- Hawaii Natural Energy Institute, The University of Hawaii at Manoa, Honolulu, Hawaii 96822, United States
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42
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Hu Y, Liu Y, Qi X, Liu P, Fan Z, Li S. Novel bioresorbable hydrogels prepared from chitosan-graft-polylactide copolymers. POLYM INT 2011. [DOI: 10.1002/pi.3150] [Citation(s) in RCA: 30] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/22/2022]
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43
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Zhang H, Cai G, Tang G, Wang L, Jiang H. Synthesis, self-assembly, and cytotoxicity of well-defined trimethylated chitosan-O-poly(ε-caprolactone): effect of chitosan molecular weight. J Biomed Mater Res B Appl Biomater 2011; 98:290-9. [PMID: 21604366 DOI: 10.1002/jbm.b.31851] [Citation(s) in RCA: 7] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/31/2010] [Revised: 01/11/2011] [Accepted: 02/10/2011] [Indexed: 11/08/2022]
Abstract
Structurally well-defined trimethylated chitosan-O-poly(ε-caprolactone) (TMC-O-PCL) was synthesized under mild homogeneous conditions, using sodium dodecyl sulfate-dimethylated chitosan complex (SDC) as an organosoluble intermediate. The effect of chitosan molecular weight (MW) on the preparation, organosolubility, self-assembly, and cytotoxicity of the copolymers was investigated. The copolymers with low-MW chitosan backbone had improved solubility in common organic solvents. Spherical micelles with average diameter of 25-55 nm and uniform morphology were formed through self-assembly of TMC-O-PCL in pH 7.4 PBS. When trimethylation degree of the copolymers was above 44%, the micelles could remain stable in neutral aqueous media. The critical aggregation concentration of TMC-O-PCL slightly increased with a decrease in the MW of chitosan backbone. The cytotoxicity of the cationic micelles could be suppressed by increasing PCL grafting levels, reducing trimethylation degree, and MW of the chitosan backbone.
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Affiliation(s)
- Haiwen Zhang
- Department of Polymer Science and Engineering, Zhejiang University, Hangzhou 310027, People's Republic of China
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44
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Bhaw-Luximon A, Meeram LM, Jugdawa Y, Helbert W, Jhurry D. Oligoagarose-g-polycaprolactone loaded nanoparticles for drug delivery applications. Polym Chem 2011. [DOI: 10.1039/c0py00311e] [Citation(s) in RCA: 10] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
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45
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Wang XL, Huang Y, Zhu J, Pan YB, He R, Wang YZ. Chitosan-graft poly(p-dioxanone) copolymers: preparation, characterization, and properties. Carbohydr Res 2009; 344:801-7. [DOI: 10.1016/j.carres.2009.02.009] [Citation(s) in RCA: 26] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/31/2008] [Revised: 02/05/2009] [Accepted: 02/06/2009] [Indexed: 10/21/2022]
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46
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Cooney MJ, Petermann J, Lau C, Minteer SD. Characterization and evaluation of hydrophobically modified chitosan scaffolds: Towards design of enzyme immobilized flow-through electrodes. Carbohydr Polym 2009. [DOI: 10.1016/j.carbpol.2008.08.008] [Citation(s) in RCA: 23] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/24/2022]
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47
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Liu KH, Chen SY, Liu DM, Liu TY. Self-Assembled Hollow Nanocapsule from Amphiphatic Carboxymethyl-hexanoyl Chitosan as Drug Carrier. Macromolecules 2008. [DOI: 10.1021/ma8002399] [Citation(s) in RCA: 72] [Impact Index Per Article: 4.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
Affiliation(s)
- Kun-Ho Liu
- Department of Materials Science and Engineering, National Chiao Tung University, 1001 Ta-hsueh Rd. Hsinchu, Taiwan, Republic of China, and Institute of Biomedical Engineering, National Yang-Ming University, No. 155, Sec. 2, Linong St. Taipei, 112 Taiwan, Republic of China
| | - San-Yuan Chen
- Department of Materials Science and Engineering, National Chiao Tung University, 1001 Ta-hsueh Rd. Hsinchu, Taiwan, Republic of China, and Institute of Biomedical Engineering, National Yang-Ming University, No. 155, Sec. 2, Linong St. Taipei, 112 Taiwan, Republic of China
| | - Dean-Mo Liu
- Department of Materials Science and Engineering, National Chiao Tung University, 1001 Ta-hsueh Rd. Hsinchu, Taiwan, Republic of China, and Institute of Biomedical Engineering, National Yang-Ming University, No. 155, Sec. 2, Linong St. Taipei, 112 Taiwan, Republic of China
| | - Tse-Ying Liu
- Department of Materials Science and Engineering, National Chiao Tung University, 1001 Ta-hsueh Rd. Hsinchu, Taiwan, Republic of China, and Institute of Biomedical Engineering, National Yang-Ming University, No. 155, Sec. 2, Linong St. Taipei, 112 Taiwan, Republic of China
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