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Liang X, Lin D, Zhang W, Chen S, Ding H, Zhong HJ. Progress in the Preparation and Application of Inulin-Based Hydrogels. Polymers (Basel) 2024; 16:1492. [PMID: 38891439 PMCID: PMC11174702 DOI: 10.3390/polym16111492] [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: 04/30/2024] [Revised: 05/15/2024] [Accepted: 05/22/2024] [Indexed: 06/21/2024] Open
Abstract
Inulin, a natural polysaccharide, has emerged as a promising precursor for the preparation of hydrogels due to its biocompatibility, biodegradability, and structural versatility. This review provides a comprehensive overview of the recent progress in the preparation, characterization, and diverse applications of inulin-based hydrogels. Different synthesis strategies, including physical methods (thermal induction and non-thermal induction), chemical methods (free-radical polymerization and chemical crosslinking), and enzymatic approaches, are discussed in detail. The unique properties of inulin-based hydrogels, such as stimuli-responsiveness, antibacterial activity, and their potential as fat replacers, are highlighted. Special emphasis is given to their promising applications in drug delivery systems, especially for colon-targeted delivery, due to the selective degradation of inulin via colonic microflora. The ability to incorporate both hydrophilic and hydrophobic drugs further expands their therapeutic potential. In addition, the applications of inulin-based hydrogels in responsive materials, the food industry, wound dressings, and tissue engineering are discussed. While significant progress has been achieved, challenges and prospects in optimizing synthesis, improving mechanical properties, and exploring new functionalities are discussed. Overall, this review highlights the remarkable properties of inulin-based hydrogels as a promising class of biomaterials with immense potential in the biomedical, pharmaceutical, and materials science fields.
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Affiliation(s)
- Xiaoxu Liang
- Foundation Department, Guangzhou Maritime University, Guangzhou 510725, China;
| | - Danlei Lin
- State Key Laboratory of Bioactive Molecules and Druggability Assessment, Jinan University, Guangzhou 510632, China; (D.L.); (W.Z.); (S.C.)
| | - Wen Zhang
- State Key Laboratory of Bioactive Molecules and Druggability Assessment, Jinan University, Guangzhou 510632, China; (D.L.); (W.Z.); (S.C.)
| | - Shiji Chen
- State Key Laboratory of Bioactive Molecules and Druggability Assessment, Jinan University, Guangzhou 510632, China; (D.L.); (W.Z.); (S.C.)
| | - Hongyao Ding
- College of Materials Science and Engineering, Nanjing Tech University, Nanjing 210009, China
| | - Hai-Jing Zhong
- State Key Laboratory of Bioactive Molecules and Druggability Assessment, Jinan University, Guangzhou 510632, China; (D.L.); (W.Z.); (S.C.)
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2
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Samani S, Bonakdar S, Farzin A, Hadjati J, Azami M. A facile way to synthesize a photocrosslinkable methacrylated chitosan hydrogel for biomedical applications. INT J POLYM MATER PO 2020. [DOI: 10.1080/00914037.2020.1760274] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/23/2022]
Affiliation(s)
- Saeed Samani
- Department of Tissue Engineering and Applied Cell Sciences, School of Advanced Technologies in Medicine, Tehran University of Medical Sciences, Tehran, Iran
| | | | - Ali Farzin
- Department of Tissue Engineering and Applied Cell Sciences, School of Advanced Technologies in Medicine, Tehran University of Medical Sciences, Tehran, Iran
| | - Jamshid Hadjati
- Department of Tissue Engineering and Applied Cell Sciences, School of Advanced Technologies in Medicine, Tehran University of Medical Sciences, Tehran, Iran
| | - Mahmoud Azami
- Department of Tissue Engineering and Applied Cell Sciences, School of Advanced Technologies in Medicine, Tehran University of Medical Sciences, Tehran, Iran
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3
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Ferracci G, Zhu M, Ibrahim MS, Ma G, Fan TF, Lee BH, Cho NJ. Photocurable Albumin Methacryloyl Hydrogels as a Versatile Platform for Tissue Engineering. ACS APPLIED BIO MATERIALS 2020; 3:920-934. [DOI: 10.1021/acsabm.9b00984] [Citation(s) in RCA: 15] [Impact Index Per Article: 3.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/14/2023]
Affiliation(s)
- Gaia Ferracci
- School of Materials Science and Engineering, Nanyang Technological University, 50 Nanyang Avenue, 639798, Singapore
| | - Mengxiang Zhu
- School of Ophthalmology and Optometry, Eye Hospital, School of Biomedical Engineering, Wenzhou Medical University, Wenzhou, Zhejiang 325027, China
- Wenzhou Institute of Biomaterials and Engineering, University of CAS, Wenzhou, Zhejiang 325011, China
| | - Mohammed Shahrudin Ibrahim
- School of Materials Science and Engineering, Nanyang Technological University, 50 Nanyang Avenue, 639798, Singapore
| | - Gamaliel Ma
- School of Materials Science and Engineering, Nanyang Technological University, 50 Nanyang Avenue, 639798, Singapore
| | - Teng Fei Fan
- School of Materials Science and Engineering, Nanyang Technological University, 50 Nanyang Avenue, 639798, Singapore
| | - Bae Hoon Lee
- School of Ophthalmology and Optometry, Eye Hospital, School of Biomedical Engineering, Wenzhou Medical University, Wenzhou, Zhejiang 325027, China
- Wenzhou Institute of Biomaterials and Engineering, University of CAS, Wenzhou, Zhejiang 325011, China
| | - Nam-Joon Cho
- School of Materials Science and Engineering, Nanyang Technological University, 50 Nanyang Avenue, 639798, Singapore
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4
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Chatterjee S, Chi-Leung Hui P. Review of Stimuli-Responsive Polymers in Drug Delivery and Textile Application. Molecules 2019; 24:E2547. [PMID: 31336916 PMCID: PMC6681499 DOI: 10.3390/molecules24142547] [Citation(s) in RCA: 80] [Impact Index Per Article: 16.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/05/2019] [Revised: 06/27/2019] [Accepted: 07/11/2019] [Indexed: 12/22/2022] Open
Abstract
This review describes some commercially available stimuli-responsive polymers of natural and synthetic origin, and their applications in drug delivery and textiles. The polymers of natural origin such as chitosan, cellulose, albumin, and gelatin are found to show both thermo-responsive and pH-responsive properties and these features of the biopolymers impart sensitivity to act differently under different temperatures and pH conditions. The stimuli-responsive characters of these natural polymers have been discussed in the review, and their respective applications in drug delivery and textile especially for textile-based transdermal therapy have been emphasized. Some practically important thermo-responsive polymers such as pluronic F127 (PF127) and poly(N-isopropylacrylamide) (pNIPAAm) of synthetic origin have been discussed in the review and they are of great importance commercially because of their in situ gel formation capacity. Some pH-responsive synthetic polymers have been discussed depending on their surface charge, and their drug delivery and textile applications have been discussed in this review. The selected stimuli-responsive polymers of synthetic origin are commercially available. Above all, the applications of bio-based or synthetic stimuli-responsive polymers in textile-based transdermal therapy are given special regard apart from their general drug delivery applications. A special insight has been given for stimuli-responsive hydrogel drug delivery systems for textile-based transdermal therapy, which is critical for the treatment of skin disease atopic dermatitis.
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Affiliation(s)
- Sudipta Chatterjee
- Institute of Textiles and Clothing, The Hong Kong Polytechnic University, Hung Hom, Hong Kong
| | - Patrick Chi-Leung Hui
- Institute of Textiles and Clothing, The Hong Kong Polytechnic University, Hung Hom, Hong Kong.
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Ibrahim SS, Osman R, Mortada ND, Geneidy AS, Awad GAS. Passive targeting and lung tolerability of enoxaparin microspheres for a sustained antithrombotic activity in rats. Drug Deliv 2017; 24:243-251. [PMID: 28156170 PMCID: PMC8241188 DOI: 10.1080/10717544.2016.1245368] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/09/2016] [Accepted: 10/03/2016] [Indexed: 12/20/2022] Open
Abstract
Pulmonary bed can retain microparticles (MP) larger than their capillaries' diameter, hence we offer a promising way for lung passive targeting following intravenous (IV) administration. In this study, enoxaparin (Enox)-albumin microspheres (Enox-Alb MS) were, optimally, developed as lung targeted sustained release MP for IV use. Lung tolerability and targeting efficiency of Enox-Alb MS were tested, and the pharmacokinetic profile following IV administration to albino rats was constructed. In vivo studies confirmed high lung targeting efficiency of Enox-Alb MS with lack of potential tissue toxicity. The anticoagulant activity of the selected Alb MS was significantly sustained for up to 38 h compared to 5 h for the market product. Alb MS are promising delivery carriers for controlled and targeted delivery of Enox to the lungs for prophylaxis and treatment of pulmonary embolism.
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Affiliation(s)
- Shaimaa S. Ibrahim
- Department of Pharmaceutics and Industrial Pharmacy, Faculty of Pharmacy, Ain Shams University, Cairo, Egypt
| | - Rihab Osman
- Department of Pharmaceutics and Industrial Pharmacy, Faculty of Pharmacy, Ain Shams University, Cairo, Egypt
| | - Nahed D. Mortada
- Department of Pharmaceutics and Industrial Pharmacy, Faculty of Pharmacy, Ain Shams University, Cairo, Egypt
| | - Ahmed-Shawky Geneidy
- Department of Pharmaceutics and Industrial Pharmacy, Faculty of Pharmacy, Ain Shams University, Cairo, Egypt
| | - Gehanne A. S. Awad
- Department of Pharmaceutics and Industrial Pharmacy, Faculty of Pharmacy, Ain Shams University, Cairo, Egypt
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6
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Park DB, Kim JC. Effect of tris(hydroxymethyl) aminomethane on the phase behavior of poly(ethylene imine)/cinnamic acid conjugate and the release property of cubic phase containing the conjugate. J DISPER SCI TECHNOL 2016. [DOI: 10.1080/01932691.2016.1234386] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/21/2022]
Affiliation(s)
- Dan Bi Park
- Department of Medical Biomaterials Engineering, College of Biomedical Science and Institute of Bioscience and Biotechnology, Kangwon National University, Chuncheon, Kangwon-do, Republic of Korea
| | - Jin-Chul Kim
- Department of Medical Biomaterials Engineering, College of Biomedical Science and Institute of Bioscience and Biotechnology, Kangwon National University, Chuncheon, Kangwon-do, Republic of Korea
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Spizzirri UG, Cirillo G, Curcio M, Spataro T, Picci N, Iemma F. Coated biodegradable casein nanospheres: a valuable tool for oral drug delivery. Drug Dev Ind Pharm 2015; 41:2006-17. [PMID: 26023992 DOI: 10.3109/03639045.2015.1040415] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/13/2022]
Abstract
Biodegradable casein nanospheres for the sustained release of bioactive molecules in the gastro-intestinal tract were prepared by precipitation polymerization using sodium methacrylate (NaMA) and N,N'-methylene bis-acrylamide (MEBA) as pH-responsive monomer and cross-linker. Three materials with different casein amount were obtained and characterized by scanning electron microscopy, dimensional analysis, water uptake, cytotoxicity and enzymatic degradation experiments. Nanospheres biodegradability was tuned by coating with polyacrylic acid. Coated and uncoated materials were investigated as delivery vehicles for diclofenac sodium salt. For un-coated samples, the release raise 100% in 30 h, while for coated specimens these values were lower than 70%, due to the diffusional constraints of polymer layer.
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Affiliation(s)
- Umile Gianfranco Spizzirri
- a Dipartimento di Farmacia e Scienze della Salute e della Nutrizione , Università della Calabria, Edificio Polifunzionale , Arcavacata di Rende , Italia
| | - Giuseppe Cirillo
- a Dipartimento di Farmacia e Scienze della Salute e della Nutrizione , Università della Calabria, Edificio Polifunzionale , Arcavacata di Rende , Italia
| | - Manuela Curcio
- a Dipartimento di Farmacia e Scienze della Salute e della Nutrizione , Università della Calabria, Edificio Polifunzionale , Arcavacata di Rende , Italia
| | - Tania Spataro
- a Dipartimento di Farmacia e Scienze della Salute e della Nutrizione , Università della Calabria, Edificio Polifunzionale , Arcavacata di Rende , Italia
| | - Nevio Picci
- a Dipartimento di Farmacia e Scienze della Salute e della Nutrizione , Università della Calabria, Edificio Polifunzionale , Arcavacata di Rende , Italia
| | - Francesca Iemma
- a Dipartimento di Farmacia e Scienze della Salute e della Nutrizione , Università della Calabria, Edificio Polifunzionale , Arcavacata di Rende , Italia
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8
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Sitta DL, Guilherme MR, da Silva EP, Valente AJ, Muniz EC, Rubira AF. Drug release mechanisms of chemically cross-linked albumin microparticles: Effect of the matrix erosion. Colloids Surf B Biointerfaces 2014; 122:404-413. [DOI: 10.1016/j.colsurfb.2014.07.014] [Citation(s) in RCA: 21] [Impact Index Per Article: 2.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/17/2014] [Revised: 07/08/2014] [Accepted: 07/11/2014] [Indexed: 01/28/2023]
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9
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Sitta DLA, Guilherme MR, Garcia FP, Cellet TSP, Nakamura CV, Muniz EC, Rubira AF. Covalent Albumin Microparticles as an Adjuvant for Production of Mucosal Vaccines against Hepatitis B. Biomacromolecules 2013; 14:3231-7. [DOI: 10.1021/bm400859z] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
Affiliation(s)
- Danielly L. A. Sitta
- Grupo de Materiais Poliméricos
e Compósitos, Departamento de Química, Universidade Estadual de Maringá, Avenida Colombo,
5790, CEP 87020-900 Maringá, PR, Brazil
| | - Marcos R. Guilherme
- Grupo de Materiais Poliméricos
e Compósitos, Departamento de Química, Universidade Estadual de Maringá, Avenida Colombo,
5790, CEP 87020-900 Maringá, PR, Brazil
| | - Francielle P. Garcia
- Departamento de Ciências
Básicas da Saúde, Universidade Estadual de Maringá, Avenida Colombo, 5790, CEP 87020-900
Maringá, PR, Brazil
| | - Thelma S. P. Cellet
- Grupo de Materiais Poliméricos
e Compósitos, Departamento de Química, Universidade Estadual de Maringá, Avenida Colombo,
5790, CEP 87020-900 Maringá, PR, Brazil
| | - Celso V. Nakamura
- Departamento de Ciências
Básicas da Saúde, Universidade Estadual de Maringá, Avenida Colombo, 5790, CEP 87020-900
Maringá, PR, Brazil
- Programa de pós-graduação
em Ciências Farmacêuticas, Departamento de Ciências
Básicas da Saúde, Universidade Estadual de Maringá, Avenida Colombo, 5790, CEP 87020-900
Maringá, PR, Brazil
| | - Edvani C. Muniz
- Grupo de Materiais Poliméricos
e Compósitos, Departamento de Química, Universidade Estadual de Maringá, Avenida Colombo,
5790, CEP 87020-900 Maringá, PR, Brazil
| | - Adley F. Rubira
- Grupo de Materiais Poliméricos
e Compósitos, Departamento de Química, Universidade Estadual de Maringá, Avenida Colombo,
5790, CEP 87020-900 Maringá, PR, Brazil
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10
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Novel carbon nanotube composites by grafting reaction with water-compatible redox initiator system. Colloid Polym Sci 2012. [DOI: 10.1007/s00396-012-2779-7] [Citation(s) in RCA: 11] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/27/2022]
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11
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Altimari I, Spizzirri UG, Iemma F, Curcio M, Puoci F, Picci N. pH-sensitive drug delivery systems by radical polymerization of gelatin derivatives. J Appl Polym Sci 2012. [DOI: 10.1002/app.36234] [Citation(s) in RCA: 15] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/06/2022]
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12
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Abbate V, Kong X, Bansal SS. Photocrosslinked bovine serum albumin hydrogels with partial retention of esterase activity. Enzyme Microb Technol 2012; 50:130-6. [DOI: 10.1016/j.enzmictec.2011.11.002] [Citation(s) in RCA: 21] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/19/2011] [Revised: 10/17/2011] [Accepted: 11/14/2011] [Indexed: 01/26/2023]
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13
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Spizzirri UG, Iemma F, Cirillo G, Altimari I, Puoci F, Picci N. Temperature-sensitive hydrogels by graft polymerization of chitosan and N-isopropylacrylamide for drug release. Pharm Dev Technol 2011; 18:1026-34. [PMID: 22200242 DOI: 10.3109/10837450.2011.644298] [Citation(s) in RCA: 8] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/13/2022]
Abstract
Thermo-responsive polysaccharidic hydrogels were designed and synthesized by a free radical induced grafting procedure. Chitosan was chosen as biopolymer to impart biocompatibility and biodegradability to the macromolecular systems, while N-isopropylacrylamide (NIPAAm) was selected as co-monomer responsive for the thermo-sensitive properties. Ammonium persulfate was the initiator system and different polymeric networks have been synthesized by modulating the amount of NIPAAm in the polymerization feed. The resulting hydrogels were proposed as drug delivery devices and their performance was evaluated by using Diclofenac sodium salt as a model drug. Hydrogels were carefully characterized by FT-IR spectrophotometry, calorimetric analyses and swelling behavior in a temperature range of 15-45°C. Finally, to verify the suitability of these hydrogels as thermo-responsive devices, the drug release profiles were studied performing in vitro experiments around the swelling-shrinking transition temperatures of the macromolecular systems.
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Affiliation(s)
- Umile Gianfranco Spizzirri
- Department of Pharmaceutical Sciences, University of Calabria, Edificio Polifunzionale, Rende (CS), Italy
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14
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Reddy N, Yang Y. Potential of plant proteins for medical applications. Trends Biotechnol 2011; 29:490-8. [DOI: 10.1016/j.tibtech.2011.05.003] [Citation(s) in RCA: 146] [Impact Index Per Article: 11.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/02/2011] [Revised: 04/04/2011] [Accepted: 05/10/2011] [Indexed: 10/18/2022]
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15
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Ninawe PR, Parulekar SJ. Drug Delivery Using Stimuli-Responsive Polymer Gel Spheres. Ind Eng Chem Res 2011. [DOI: 10.1021/ie200118y] [Citation(s) in RCA: 27] [Impact Index Per Article: 2.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
Affiliation(s)
- Pravin R. Ninawe
- Department of Chemical and Biological Engineering, Illinois Institute of Technology, Chicago, Illinois 60616, United States
| | - Satish J. Parulekar
- Department of Chemical and Biological Engineering, Illinois Institute of Technology, Chicago, Illinois 60616, United States
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Ninawe PR, Parulekar SJ. Drug loading into and drug release from pH- and temperature-responsive cylindrical hydrogels. Biotechnol Prog 2011; 27:1442-54. [PMID: 21626721 DOI: 10.1002/btpr.632] [Citation(s) in RCA: 8] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/11/2010] [Revised: 04/09/2011] [Indexed: 11/09/2022]
Abstract
Hydrogels that undergo deformation upon appropriate changes in pH or temperature have considerable promise as drug delivery vehicles. Drug uptake in swelling and nonswelling cylindrical hydrogels and drug release from these into a target fluid are investigated here. A mathematical model for hydrogel-solution composite, a composite of a distributed parameter system (cylindrical hydrogel) and a lumped parameter system (surrounding solution), is developed. The polymer network displacement in a swelling/deswelling hydrogel is described by a stress diffusion coupling model. The analytical solution for network displacement is used to predict solvent intake by swelling hydrogels, solvent efflux from deswelling hydrogels, and changes in pressure, porosity, and effective drug diffusivity. These in turn influence drug uptake during and after hydrogel swelling and drug release from hydrogel during and after deswelling. Numerical results illustrate benefits of hydrogel swelling for drug loading and merits of different modes of drug release. Drug uptake and drug release by temperature-responsive hydrogels are compared with those by hydrogels not subject to deformation.
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Affiliation(s)
- Pravin R Ninawe
- Dept. of Chemical and Biological Engineering, Illinois Institute of Technology, Chicago, IL 60616, USA
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Spizzirri UG, Cirillo G, Iemma F, Puoci F, Curcio M, Ilaria Parisi O, Picci N. Thermo-responsive albumin hydrogels with LCST near the physiological temperature. J Appl Polym Sci 2011. [DOI: 10.1002/app.33543] [Citation(s) in RCA: 9] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/10/2022]
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18
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Spizzirri U, Altimari I, Puoci F, Parisi O, Iemma F, Picci N. Innovative antioxidant thermo-responsive hydrogels by radical grafting of catechin on inulin chain. Carbohydr Polym 2011. [DOI: 10.1016/j.carbpol.2010.12.015] [Citation(s) in RCA: 35] [Impact Index Per Article: 2.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/18/2022]
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19
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Mocanu G, Mihaï D, Dulong V, Picton L, Le Cerf D, Moscovici M. Anionic polysaccharide hydrogels with thermosensitive properties. Carbohydr Polym 2011. [DOI: 10.1016/j.carbpol.2010.07.022] [Citation(s) in RCA: 8] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/19/2022]
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20
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Verheyen E, Delain-Bioton L, van der Wal S, el Morabit N, Barendregt A, Hennink WE, van Nostrum CF. Conjugation of methacrylamide groups to a model protein via a reducible linker for immobilization and subsequent triggered release from hydrogels. Macromol Biosci 2010; 10:1517-26. [PMID: 20824693 DOI: 10.1002/mabi.201000168] [Citation(s) in RCA: 21] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/20/2010] [Revised: 06/15/2010] [Indexed: 02/03/2023]
Abstract
An efficient strategy is reported to introduce methacrylamide groups on the lysine residues of a model protein (lysozyme) for immobilization and triggered release from a hydrogel network. A novel spacer unit was designed, containing a disulfide bond, such that the release of the protein can be triggered by reduction. The modified proteins were characterized by MALDI-TOF MS, titration of free NH(2) residues and spectral analysis. The modification reaction is well controlled, and the number of introduced functions can be tailored by changing the reaction conditions. Gel electrophoresis experiments showed that the methacrylamide modified protein can be immobilized in a polyacrylamide hydrogel and subsequently released by reduction of the spacer by which the protein was grafted to the polymeric network.
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Affiliation(s)
- Ellen Verheyen
- Department of Pharmaceutics, Utrecht Institute for Pharmaceutical Sciences, Utrecht University, P.O. Box 80082, 3508 TB Utrecht, The Netherlands
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21
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Friedrich T, Tieke B. Luminescent N-isopropylacrylamide–surfmer copolymer hydrogels prepared upon electrostatic self-assembly of 1-pyrenesulfonate. Colloid Polym Sci 2010. [DOI: 10.1007/s00396-010-2270-2] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/19/2022]
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22
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Cirillo G, Iemma F, Spizzirri UG, Puoci F, Curcio M, Parisi OI, Picci N. Synthesis of stimuli-responsive microgels for in vitro release of diclofenac diethyl ammonium. JOURNAL OF BIOMATERIALS SCIENCE-POLYMER EDITION 2010; 22:823-44. [PMID: 20566061 DOI: 10.1163/092050610x496279] [Citation(s) in RCA: 16] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/19/2022]
Abstract
Thermal and dual stimuli-responsive microspheres (pH and temperature) were prepared by free radical polymerization of methacrylate bovine serum albumin (BSA-MA) as cross-linker and sodium methacrylate (NaMA) and/or N-isopropylacrylamide (NIPAAm), as hydrophilic/pH-sensitive and thermo-responsive monomers, respectively. Microgels were characterized by infrared spectroscopy, morphological analysis, particle size distribution and determination of swelling properties. The network density and the shape of the microgels were found to depend on the concentration of the reactive species in the polymerization feed. Thermal analyses were performed to determine lower critical solution temperature values, which become close to the body temperature by increasing the content of the hydrophilic moieties in the network. In order to test the preformed materials as drug carriers, in vitro release studies of Diclofenac diethyl ammonium salt were performed. For all the co-polymers, a predominant drug release in the collapsed state was observed, while below the microgel transition temperature, a drug release through the swollen network occurs. The data recorded during the release tests demonstrated that the pH of the surrounding environment influences the drug release more than the temperature of the imbibing medium.
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Affiliation(s)
- Giuseppe Cirillo
- Dipartimento di Scienze Farmaceutiche, Università della Calabria, Edificio Polifunzionale, Rende (CS) 87036, Italia
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Curcio M, Puoci F, Spizzirri UG, Iemma F, Cirillo G, Parisi OI, Picci N. Negative thermo-responsive microspheres based on hydrolyzed gelatin as drug delivery device. AAPS PharmSciTech 2010; 11:652-62. [PMID: 20405255 DOI: 10.1208/s12249-010-9429-5] [Citation(s) in RCA: 18] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/20/2009] [Accepted: 04/05/2010] [Indexed: 11/30/2022] Open
Abstract
This paper deals with the synthesis of thermo-responsive microspheres with proteic structure exhibiting a transition temperature close to the body temperature. Temperature-sensitive hydrogels have attracted extensive interest due to their potential and promising applications in drug delivery field since they can undergo a rapid and reversible phase transition from a swollen to a shrunken state depending on environmental temperature. The hydrogels were synthesized by free-radical polymerization of hydrolyzed methacrylated gelatin (HGel-MA) and N,N'-methylenebisacrylamide as pro-hydrophilic multifunctional macromer and crosslinker, respectively, and N-isopropylacrylamide as thermo-responsive monomer. Thermal analyses showed negative thermo-responsive behavior for all compositions and, by increasing the content of the hydrophilic moieties in the network, the transition temperature raised to 36.9 degrees C, close to the physiological values. In order to test the materials as drug carriers, diclofenac sodium salt was chosen as model drug. Drug release profiles, in phosphate buffer solution (pH 7.0, 10(-3) M) at 25 and 40 degrees C, depend on the hydrogel's crosslinking degree and hydrophilic/hydrophobic balance in the polymeric network. For all formulations, in the shrunken state, the drug release percent values ranged from 80% to 100% after 24 h, and after 3 h, more than 60% of therapeutics was delivered. On the contrary, the swelling of the loaded microparticles produces, even after 30 h, a drug release percent of about 75%. By using semi-empirical equations, the release mechanism was extensively studied and the diffusional contribute was evaluated. The physico-chemical characteristics of thermo-responsive materials confirm the applicability of the microspheres as drug delivery device.
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Curcio M, Gianfranco Spizzirri U, Iemma F, Puoci F, Cirillo G, Parisi OI, Picci N. Grafted thermo-responsive gelatin microspheres as delivery systems in triggered drug release. Eur J Pharm Biopharm 2010; 76:48-55. [PMID: 20580821 DOI: 10.1016/j.ejpb.2010.05.008] [Citation(s) in RCA: 58] [Impact Index Per Article: 4.1] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/25/2009] [Revised: 03/24/2010] [Accepted: 05/17/2010] [Indexed: 10/19/2022]
Abstract
In this paper, a novel class of microspheric hydrogels was synthesized by grafting of N-isopropyacrylamide (NIPAAm) with gelatin. The possibility of inserting commercial gelatin in a crosslinked structure bearing thermo-sensitive moieties, by radical process, represents an interesting innovation that significantly improves the device performance, opening new applications in biomedical and pharmaceutical fields. This synthetic approach allows a modification of the polymeric network composition, producing hydrogels with suitable physico-chemical properties and a transition temperature higher than NIPAAm homopolymers. The incorporation of monomers into the network was confirmed by infrared spectroscopy, and the composition of the polymerization feed was found to strictly influence the network density and the shape of hydrogels. Thermal analyses showed negative thermo-responsive behaviour with shrinking/swelling transition values in the temperature range 34.6-34.8 degrees C, according to the amount of the hydrophilic portions in the network. In order to test the preformed materials as drug carriers, diclofenac sodium salt was loaded into the spherical microparticles. After the determination of the drug entrapment percent, drug release profiles in media at different temperature were analysed. By using semi-empirical equations, the release mechanism was extensively studied and the diffusional contribution was evaluated.
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Affiliation(s)
- Manuela Curcio
- Dipartimento di Scienze Farmaceutiche, Università della Calabria, Arcavacata di Rende (CS), Italy
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Frontal polymerization synthesis and drug delivery behavior of thermo-responsive poly(N-isopropylacrylamide) hydrogel. Colloid Polym Sci 2010. [DOI: 10.1007/s00396-010-2224-8] [Citation(s) in RCA: 34] [Impact Index Per Article: 2.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
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Spizzirri UG, Iemma F, Puoci F, Xue F, Gao W, Cirillo G, Curcio M, Parisi OI, Picci N. Synthesis of hydrophilic microspheres with LCST close to body temperature for controlled dual-sensitive drug release. POLYM ADVAN TECHNOL 2010. [DOI: 10.1002/pat.1660] [Citation(s) in RCA: 16] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/09/2022]
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