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Delma KL, Penoy N, Sakira AK, Egrek S, Sacheli R, Grignard B, Hayette MP, Issa Somé T, Evrard B, Semdé R, Piel G. Use of supercritical CO 2 for the sterilization of liposomes: Study of the influence of sterilization conditions on the chemical and physical stability of phospholipids and liposomes. Eur J Pharm Biopharm 2023; 183:112-118. [PMID: 36638849 DOI: 10.1016/j.ejpb.2023.01.002] [Citation(s) in RCA: 3] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/12/2022] [Revised: 12/27/2022] [Accepted: 01/02/2023] [Indexed: 01/12/2023]
Abstract
The effects of four potential supercritical carbon dioxide (ScCO2) sterilization conditions on the chemical stability of 9 phospholipids and on the physicochemical characteristics of liposomes consisting of stable phospholipids, as well as their sterilization efficiency were evaluated. These conditions were : C1 (ScCO2/70 °C/150 bar/240 min), C2 (ScCO2/0.25 % water/ 0.15% H2O2/ 0.5% acetic anhydride/38° C/85 bar/45 min), C3 (ScCO2/0.08 % peracetic acid/35° C/104 bar/180 min) and C4 (ScCO2/200 ppm H2O2/40 °C/270 bar/90 min). The results showed for phospholipids, a significant increase in hydrolysis products of 3.77 to 14.50 % and an increase in oxidation index of 6.10 to 430.50 % with unsaturated phospholipids for all tested conditions while with saturated phospholipids, no significant degradation was observed. Concerning the liposome formulation, no change in dispersion color and no phospholipid degradation were observed. However, a decrease in liposome size from 126.90 nm to 111.80 nm, 96.27 nm, 99.60 nm and 109.13 nm and an increase in the PdI from 0.208 to 0.271, 0.233, 0.285, and 0.298 were found with conditions C1, C2, C3 and C4 respectively. For the sterilization efficiency, conditions C1, C2 and C3 achieved the required sterility assurance level (SAL) of 10-6 for liposomes.
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Affiliation(s)
- Kouka Luc Delma
- Laboratory of Pharmaceutical Technology and Biopharmacy, Nanomedicine Development, Center for Interdisciplinary Research on Medicines (CIRM), University of Liège, 4000 Liège, Belgium; Laboratory of Drug Development, Doctoral School of Sciences and Health, University Joseph KI-ZERBO, 03 BP 7021 Ouagadougou 03, Burkina Faso.
| | - Noémie Penoy
- Laboratory of Pharmaceutical Technology and Biopharmacy, Nanomedicine Development, Center for Interdisciplinary Research on Medicines (CIRM), University of Liège, 4000 Liège, Belgium
| | - Abdoul Karim Sakira
- Laboratoire de Toxicologie, Environnement et Santé (LATES), Ecole Doctorale Sciences et Santé (ED2S), Université Joseph KI-ZERBO, 03 BP 7021 03, Ouagadougou, Burkina Faso
| | - Sabrina Egrek
- Laboratory of Clinical Microbiology, Center for Interdisciplinary Research on Medicines (CIRM), University of Liège, 4000 Liège, Belgium
| | - Rosalie Sacheli
- Laboratory of Clinical Microbiology, Center for Interdisciplinary Research on Medicines (CIRM), University of Liège, 4000 Liège, Belgium
| | - Bruno Grignard
- FRITCO(2)T Platform, CESAM Research Unit, University of Liege, Sart-Tilman B6a, 4000 Liege, Belgium
| | - Marie-Pierre Hayette
- Laboratory of Clinical Microbiology, Center for Interdisciplinary Research on Medicines (CIRM), University of Liège, 4000 Liège, Belgium
| | - Touridomon Issa Somé
- Laboratoire de Toxicologie, Environnement et Santé (LATES), Ecole Doctorale Sciences et Santé (ED2S), Université Joseph KI-ZERBO, 03 BP 7021 03, Ouagadougou, Burkina Faso
| | - Brigitte Evrard
- Laboratory of Pharmaceutical Technology and Biopharmacy, Nanomedicine Development, Center for Interdisciplinary Research on Medicines (CIRM), University of Liège, 4000 Liège, Belgium
| | - Rasmané Semdé
- Laboratory of Drug Development, Doctoral School of Sciences and Health, University Joseph KI-ZERBO, 03 BP 7021 Ouagadougou 03, Burkina Faso
| | - Géraldine Piel
- Laboratory of Pharmaceutical Technology and Biopharmacy, Nanomedicine Development, Center for Interdisciplinary Research on Medicines (CIRM), University of Liège, 4000 Liège, Belgium
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2
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Recent Studies on Hydrogels Based on H 2O 2-Responsive Moieties: Mechanism, Preparation and Application. Gels 2022; 8:gels8060361. [PMID: 35735705 PMCID: PMC9222492 DOI: 10.3390/gels8060361] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/27/2022] [Revised: 05/29/2022] [Accepted: 05/30/2022] [Indexed: 01/04/2023] Open
Abstract
H2O2 is essential for cellular processes and plays a vital role in the regulation of cell signaling pathways, which can be viewed as a warning signal for many kinds of disease including cancer, cardiovascular disease, reproductive abnormalities, diabetes, and renal failure. A H2O2-responsive hydrogel (H2O2-Gel) is a promising candidate for biomedical applications because of its good biocompatibility, similarity to soft biological tissues, ease of preparation, and its ability to respond to H2O2. In this study, the H2O2-responsive moieties used to fabricate H2O2-Gels were reviewed, including thioethers, disulfide bonds, selenides, diselenium bonds, diketones, boronic, and others. Next, the preparation method of H2O2-Gel was divided into two major categories according to their reaction mechanisms: either self-crosslinking or mechanisms entailing the addition of difunctional crosslinkers. Last, the applications of H2O2-Gels were emphasized, which have been viewed as desirable candidates in the fields of drug delivery, the detection of H2O2, glucose-responsive systems, ROS scavengers, tissue engineering, and cell-encapsulation.
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Ali A, Nouseen S, Saroj S, Shegane M, Majumder P, Puri A, Rakshit T, Manna D, Pal S. Repurposing Pinacol Esters of Boronic Acids for Tuning Viscoelastic Properties of Glucose-responsive Polymer Hydrogels: Effects on Insulin Release Kinetics. J Mater Chem B 2022; 10:7591-7599. [DOI: 10.1039/d2tb00603k] [Citation(s) in RCA: 2] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
In the era of the diabetes pandemic, Injectable hydrogels (HGs) capable of releasing the desired amount of insulin under hyperglycemic conditions will significantly advance smart insulin development. Several smart boronic...
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4
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Wang J, Wang Z, Yu J, Kahkoska AR, Buse JB, Gu Z. Glucose-Responsive Insulin and Delivery Systems: Innovation and Translation. ADVANCED MATERIALS (DEERFIELD BEACH, FLA.) 2020; 32:e1902004. [PMID: 31423670 PMCID: PMC7141789 DOI: 10.1002/adma.201902004] [Citation(s) in RCA: 109] [Impact Index Per Article: 27.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 03/29/2019] [Revised: 06/09/2019] [Indexed: 05/18/2023]
Abstract
Type 1 and advanced type 2 diabetes treatment involves daily injections or continuous infusion of exogenous insulin aimed at regulating blood glucose levels in the normoglycemic range. However, current options for insulin therapy are limited by the risk of hypoglycemia and are associated with suboptimal glycemic control outcomes. Therefore, a range of glucose-responsive components that can undergo changes in conformation or show alterations in intermolecular binding capability in response to glucose stimulation has been studied for ultimate integration into closed-loop insulin delivery or "smart insulin" systems. Here, an overview of the evolution and recent progress in the development of molecular approaches for glucose-responsive insulin delivery systems, a rapidly growing subfield of precision medicine, is presented. Three central glucose-responsive moieties, including glucose oxidase, phenylboronic acid, and glucose-binding molecules are examined in detail. Future opportunities and challenges regarding translation are also discussed.
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Affiliation(s)
- Jinqiang Wang
- Department of Bioengineering, University of California, Los Angeles, CA 90095, USA
- California NanoSystems Institute, University of California, Los Angeles, CA 90095, USA
| | - Zejun Wang
- Department of Bioengineering, University of California, Los Angeles, CA 90095, USA
- California NanoSystems Institute, University of California, Los Angeles, CA 90095, USA
| | | | - Anna R. Kahkoska
- Department of Medicine, University of North Carolina School of Medicine, Chapel Hill, NC 27599, USA
| | - John B. Buse
- Department of Medicine, University of North Carolina School of Medicine, Chapel Hill, NC 27599, USA
| | - Zhen Gu
- Department of Bioengineering, University of California, Los Angeles, CA 90095, USA
- California NanoSystems Institute, University of California, Los Angeles, CA 90095, USA
- Zenomics Inc., Durham, NC 27709, USA
- Jonsson Comprehensive Cancer Center, University of California, Los Angeles, CA 90095, USA
- Center for Minimally Invasive Therapeutics, University of California, Los Angeles, CA 90095, USA
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5
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Liu X, Li C, Lv J, Huang F, An Y, Shi L, Ma R. Glucose and H2O2 Dual-Responsive Polymeric Micelles for the Self-Regulated Release of Insulin. ACS APPLIED BIO MATERIALS 2020; 3:1598-1606. [DOI: 10.1021/acsabm.9b01185] [Citation(s) in RCA: 18] [Impact Index Per Article: 4.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/20/2023]
Affiliation(s)
- Xiaoyu Liu
- Key Laboratory of Functional Polymer Materials of Ministry of Education, State Key Laboratory of Medicinal Chemical Biology, College of Chemistry, Nankai University, Tianjin 300071, China
| | - Chang Li
- Department of Polymeric Materials, School of Materials Science and Engineering, Key Laboratory of Advanced Civil Engineering Materials of Ministry of Education, Tongji University, 4800 Caoan Road, Shanghai 201804, China
| | - Juan Lv
- Key Laboratory of Functional Polymer Materials of Ministry of Education, State Key Laboratory of Medicinal Chemical Biology, College of Chemistry, Nankai University, Tianjin 300071, China
| | - Fan Huang
- Tianjin Key Laboratory of Radiation Medicine and Molecular Nuclear Medicine, Institute of Radiation Medicine, Chinese Academy of Medical Sciences & Peking Union Medical College, Tianjin 300192, China
| | - Yingli An
- Key Laboratory of Functional Polymer Materials of Ministry of Education, State Key Laboratory of Medicinal Chemical Biology, College of Chemistry, Nankai University, Tianjin 300071, China
| | - Linqi Shi
- Key Laboratory of Functional Polymer Materials of Ministry of Education, State Key Laboratory of Medicinal Chemical Biology, College of Chemistry, Nankai University, Tianjin 300071, China
- Collaborative Innovation Center1 of Chemical Science and Engineering (Tianjin), Nankai University, Tianjin 300071, China
| | - Rujiang Ma
- Key Laboratory of Functional Polymer Materials of Ministry of Education, State Key Laboratory of Medicinal Chemical Biology, College of Chemistry, Nankai University, Tianjin 300071, China
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6
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Chen X, Yang D. Functional zwitterionic biomaterials for administration of insulin. Biomater Sci 2020; 8:4906-4919. [DOI: 10.1039/d0bm00986e] [Citation(s) in RCA: 12] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/14/2022]
Abstract
This review summarizes the structures and biomedical applications of zwitterionic biomaterials in the administration of insulin.
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Affiliation(s)
- Xingyu Chen
- College of Medicine
- Southwest Jiaotong University
- Chengdu 610031
- China
| | - Dongqiong Yang
- College of Medicine
- Southwest Jiaotong University
- Chengdu 610031
- China
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7
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Mechanics of controlled release of insulin entrapped in polyacrylic acid gels via variable electrical stimuli. Drug Deliv Transl Res 2019; 9:783-794. [DOI: 10.1007/s13346-019-00620-7] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/27/2023]
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8
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Affiliation(s)
- Mitsuhiro Shibayama
- Institute for Solid State
Physics, The University of Tokyo, Kashiwanoha, Kashiwa, 277-8581, Japan
| | - Xiang Li
- Institute for Solid State
Physics, The University of Tokyo, Kashiwanoha, Kashiwa, 277-8581, Japan
| | - Takamasa Sakai
- Department of Bioengineering,
Graduate School of Engineering, The University of Tokyo, 7-3-1 Hongo, Bunkyo-ku, Tokyo 113-8656, Japan
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9
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Yu J, Zhang Y, Bomba H, Gu Z. Stimuli-Responsive Delivery of Therapeutics for Diabetes Treatment. Bioeng Transl Med 2016; 1:323-337. [PMID: 29147685 PMCID: PMC5685194 DOI: 10.1002/btm2.10036] [Citation(s) in RCA: 67] [Impact Index Per Article: 8.4] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/11/2016] [Revised: 09/07/2016] [Accepted: 09/13/2016] [Indexed: 12/12/2022] Open
Abstract
Diabetic therapeutics, including insulin and glucagon-like peptide 1 (GLP-1), are essential for diabetic patients to regulate blood glucose levels. However, conventional treatments that are based on subcutaneous injections are often associated with poor glucose control and a lack of patient compliance. In this review, we focus on the different stimuli-responsive systems to deliver therapeutics for diabetes treatment to improve patient comfort and prevent complications. Specifically, the pH-responsive systems for oral drug delivery are introduced first. Then, the closed-loop glucose-responsive systems are summarized based on different glucose-responsive moieties, including glucose oxidase (GOx), glucose binding protein (GBP), and phenylboronic acid (PBA). Finally, the on-demand delivery systems activated by external remote triggers are also discussed. We conclude by discussing advantages and limitations of current strategies, as well as future opportunities and challenges in this area.
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Affiliation(s)
- Jicheng Yu
- Joint Dept. of Biomedical EngineeringUniversity of North Carolina at Chapel Hill and North Carolina State UniversityRaleighNC27695
- Center for Nanotechnology in Drug Delivery and Division of Molecular Pharmaceutics, UNC Eshelman School of PharmacyUniversity of North Carolina at Chapel HillChapel HillNC27599
| | - Yuqi Zhang
- Joint Dept. of Biomedical EngineeringUniversity of North Carolina at Chapel Hill and North Carolina State UniversityRaleighNC27695
- Center for Nanotechnology in Drug Delivery and Division of Molecular Pharmaceutics, UNC Eshelman School of PharmacyUniversity of North Carolina at Chapel HillChapel HillNC27599
| | - Hunter Bomba
- Joint Dept. of Biomedical EngineeringUniversity of North Carolina at Chapel Hill and North Carolina State UniversityRaleighNC27695
| | - Zhen Gu
- Joint Dept. of Biomedical EngineeringUniversity of North Carolina at Chapel Hill and North Carolina State UniversityRaleighNC27695
- Center for Nanotechnology in Drug Delivery and Division of Molecular Pharmaceutics, UNC Eshelman School of PharmacyUniversity of North Carolina at Chapel HillChapel HillNC27599
- Dept. of MedicineUniversity of North Carolina at Chapel HillChapel HillNC27599
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10
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Hanisch A, Yang P, Kulak AN, Fielding LA, Meldrum FC, Armes SP. Phosphonic Acid-Functionalized Diblock Copolymer Nano-Objects via Polymerization-Induced Self-Assembly: Synthesis, Characterization, and Occlusion into Calcite Crystals. Macromolecules 2015. [DOI: 10.1021/acs.macromol.5b02212] [Citation(s) in RCA: 52] [Impact Index Per Article: 5.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/06/2023]
Affiliation(s)
- Andreas Hanisch
- Dainton
Building, Department of Chemistry, The University of Sheffield, Brook Hill, Sheffield, South Yorkshire S3 7HF, U.K
| | - Pengcheng Yang
- Dainton
Building, Department of Chemistry, The University of Sheffield, Brook Hill, Sheffield, South Yorkshire S3 7HF, U.K
| | - Alexander N. Kulak
- School
of Chemistry, University of Leeds, Woodhouse Lane, Leeds LS2 9JT, U.K
| | - Lee A. Fielding
- Dainton
Building, Department of Chemistry, The University of Sheffield, Brook Hill, Sheffield, South Yorkshire S3 7HF, U.K
| | - Fiona C. Meldrum
- School
of Chemistry, University of Leeds, Woodhouse Lane, Leeds LS2 9JT, U.K
| | - Steven P. Armes
- Dainton
Building, Department of Chemistry, The University of Sheffield, Brook Hill, Sheffield, South Yorkshire S3 7HF, U.K
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11
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Veiseh O, Tang BC, Whitehead KA, Anderson DG, Langer R. Managing diabetes with nanomedicine: challenges and opportunities. Nat Rev Drug Discov 2015; 14:45-57. [PMID: 25430866 PMCID: PMC4751590 DOI: 10.1038/nrd4477] [Citation(s) in RCA: 343] [Impact Index Per Article: 38.1] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/07/2023]
Abstract
Nanotechnology-based approaches hold substantial potential for improving the care of patients with diabetes. Nanoparticles are being developed as imaging contrast agents to assist in the early diagnosis of type 1 diabetes. Glucose nanosensors are being incorporated in implantable devices that enable more accurate and patient-friendly real-time tracking of blood glucose levels, and are also providing the basis for glucose-responsive nanoparticles that better mimic the body's physiological needs for insulin. Finally, nanotechnology is being used in non-invasive approaches to insulin delivery and to engineer more effective vaccine, cell and gene therapies for type 1 diabetes. Here, we analyse the current state of these approaches and discuss key issues for their translation to clinical practice.
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Affiliation(s)
- Omid Veiseh
- 1] Department of Chemical Engineering, Massachusetts Institute of Technology, 77 Massachusetts Ave., Cambridge, Massachusetts 02139, USA. [2] David H. Koch Institute for Integrative Cancer Research, Massachusetts Institute of Technology, 77 Massachusetts Ave., Cambridge, Massachusetts 02139, USA. [3] Department of Anesthesiology, Boston Children's Hospital, 300 Longwood Ave., Boston, Massachusetts 02115, USA. [4]
| | - Benjamin C Tang
- 1] David H. Koch Institute for Integrative Cancer Research, Massachusetts Institute of Technology, 77 Massachusetts Ave., Cambridge, Massachusetts 02139, USA. [2] Department of Anesthesiology, Boston Children's Hospital, 300 Longwood Ave., Boston, Massachusetts 02115, USA. [3]
| | - Kathryn A Whitehead
- Department of Chemical Engineering, Carnegie Mellon University, 5000 Forbes Ave., Pittsburgh, Pennsylvania 15213, USA
| | - Daniel G Anderson
- 1] Department of Chemical Engineering, Massachusetts Institute of Technology, 77 Massachusetts Ave., Cambridge, Massachusetts 02139, USA. [2] David H. Koch Institute for Integrative Cancer Research, Massachusetts Institute of Technology, 77 Massachusetts Ave., Cambridge, Massachusetts 02139, USA. [3] Department of Anesthesiology, Boston Children's Hospital, 300 Longwood Ave., Boston, Massachusetts 02115, USA. [4] Division of Health Science and Technology, Massachusetts Institute of Technology, Cambridge, Massachusetts 02139, USA. [5] Institute for Medical Engineering and Science, Massachusetts Institute of Technology, Cambridge, Massachusetts 02139, USA
| | - Robert Langer
- 1] Department of Chemical Engineering, Massachusetts Institute of Technology, 77 Massachusetts Ave., Cambridge, Massachusetts 02139, USA. [2] David H. Koch Institute for Integrative Cancer Research, Massachusetts Institute of Technology, 77 Massachusetts Ave., Cambridge, Massachusetts 02139, USA. [3] Department of Anesthesiology, Boston Children's Hospital, 300 Longwood Ave., Boston, Massachusetts 02115, USA. [4] Division of Health Science and Technology, Massachusetts Institute of Technology, Cambridge, Massachusetts 02139, USA. [5] Institute for Medical Engineering and Science, Massachusetts Institute of Technology, Cambridge, Massachusetts 02139, USA
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12
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Goda T, Ishihara K. Soft contact lens biomaterials from bioinspired phospholipid polymers. Expert Rev Med Devices 2014; 3:167-74. [PMID: 16515383 DOI: 10.1586/17434440.3.2.167] [Citation(s) in RCA: 109] [Impact Index Per Article: 10.9] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/08/2022]
Abstract
Soft contact lens (SCL) biomaterials originated from the discovery of a poly(2-hydroxyethyl methacrylate) (poly[HEMA])-based hydrogel in 1960. Incorporation of hydrophilic polymers into poly(HEMA) hydrogels was performed in the 1970-1980s, which brought an increase in the equilibrium water content, leading to an enhancement of the oxygen permeability. Nowadays, the poly(HEMA)-based hydrogels have been applied in disposable SCL. At the same time, high oxygen-permeable silicone hydrogels were produced, which made it possible to continually wear SCL. Recently, numerous trials for improving the water wettability of silicone hydrogels have been performed. However, little attention has been paid to improving their anti-biofouling properties and biocompatibility. Since biomimetic phospholipid polymers possess excellent anti-biofouling properties and biocompatibility they have the potential to play a valuable role in the surface modification of the silicone hydrogel. The representative phospholipid polymers containing a 2-methacryloyloxyethyl phosphorylcholine (MPC) unit suppressed nonspecific protein adsorption, increased cell compatibility and contributed to blood compatible biomaterials. The MPC polymer coating on the silicone hydrogel improved its water wettability and biocompatibility, while maintaining high oxygen permeability compared with the original silicone hydrogel. Furthermore, the newly prepared phospholipid-type intermolecular crosslinker made it possible to synthesize a 100% phospholipid polymer hydrogel that can enhance the anti-biofouling properties and biocompatibility. In this review, the authors discuss how polymer hydrogels should be designed in order to obtain a biocompatible SCL and future perspectives.
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Affiliation(s)
- Tatsuro Goda
- The University of Tokyo, Department of Materials Engineering, School of Engineering, 7-3-1, Hongo, Bunkyo-ku, Tokyo 113-8656, Japan
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13
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Xu F, Wang H, Zhao J, Liu X, Li D, Chen C, Ji J. Chiral Packing of Cholesteryl Group as an Effective Strategy To Get Low Molecular Weight Supramolecular Hydrogels in the Absence of Intermolecular Hydrogen Bond. Macromolecules 2013. [DOI: 10.1021/ma400276u] [Citation(s) in RCA: 23] [Impact Index Per Article: 2.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/31/2022]
Affiliation(s)
- Fangming Xu
- Key Laboratory of Macromolecular Synthesis
and Functionalization, Ministry of Education, Department of Polymer
Science and Engineering, Zhejiang University, Hangzhou 310027, China
| | - Haibo Wang
- Key Laboratory of Macromolecular Synthesis
and Functionalization, Ministry of Education, Department of Polymer
Science and Engineering, Zhejiang University, Hangzhou 310027, China
| | - Jie Zhao
- Key Laboratory of Macromolecular Synthesis
and Functionalization, Ministry of Education, Department of Polymer
Science and Engineering, Zhejiang University, Hangzhou 310027, China
| | - Xiangsheng Liu
- Key Laboratory of Macromolecular Synthesis
and Functionalization, Ministry of Education, Department of Polymer
Science and Engineering, Zhejiang University, Hangzhou 310027, China
| | - Dandan Li
- Key Laboratory of Macromolecular Synthesis
and Functionalization, Ministry of Education, Department of Polymer
Science and Engineering, Zhejiang University, Hangzhou 310027, China
| | - Chaojian Chen
- Key Laboratory of Macromolecular Synthesis
and Functionalization, Ministry of Education, Department of Polymer
Science and Engineering, Zhejiang University, Hangzhou 310027, China
| | - Jian Ji
- Key Laboratory of Macromolecular Synthesis
and Functionalization, Ministry of Education, Department of Polymer
Science and Engineering, Zhejiang University, Hangzhou 310027, China
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Ye W, Shi Q, Wong SC, Hou J, Shi H, Yin J. Patterning Surfaces for Controlled Platelet Adhesion and Detection of Dysfunctional Platelets. Macromol Biosci 2013; 13:676-81. [DOI: 10.1002/mabi.201200463] [Citation(s) in RCA: 17] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/13/2012] [Accepted: 02/07/2013] [Indexed: 11/09/2022]
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15
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Hydrogels for delivery of bioactive agents: a historical perspective. Adv Drug Deliv Rev 2013; 65:17-20. [PMID: 22906864 DOI: 10.1016/j.addr.2012.07.015] [Citation(s) in RCA: 139] [Impact Index Per Article: 12.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/06/2012] [Accepted: 07/26/2012] [Indexed: 11/22/2022]
Abstract
Since 1960 when the history of modern hydrogels began significant progress has been made in the field of controlled drug delivery. In particular, recent advances in the so-called smart hydrogels have made it possible to design highly sophisticated formulations, e.g., self-regulated drug delivery systems. Despite intensive efforts, clinical applications of smart hydrogels have been limited. Smart hydrogels need to be even smarter to execute functions necessary for achieving desired clinical functions. It is necessary to develop novel hydrogels that meet the requirements of the intended, specific applications, rather than finding applications of newly developed hydrogels. Furthermore, developing smarter hydrogels that can mimic natural systems is necessary, but the fundamental differences between natural and synthetic systems need to be understood. Such understanding will allow us to develop novel hydrogels with the new, multiple functions that we are looking for.
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Wu Y, Hu H, Hu J, Liu S. Glucose-Regulated Insulin Release from Acid-Disintegrable Microgels Covalently Immobilized with Glucose Oxidase and Catalase. Macromol Rapid Commun 2012; 33:1852-60. [DOI: 10.1002/marc.201200411] [Citation(s) in RCA: 26] [Impact Index Per Article: 2.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/09/2012] [Revised: 07/07/2012] [Indexed: 01/15/2023]
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17
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Wu Q, Wang L, Yu H, Wang J, Chen Z. Organization of glucose-responsive systems and their properties. Chem Rev 2011; 111:7855-75. [PMID: 21902252 DOI: 10.1021/cr200027j] [Citation(s) in RCA: 231] [Impact Index Per Article: 17.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/13/2022]
Affiliation(s)
- Qian Wu
- State Key Laboratory of Chemical Engineering, Department of Chemical and Biological Engineering, Zhejiang University, Hangzhou 310027, People's Republic of China
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18
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Li L, Wang JH, Xin Z. Synthesis and biocompatibility of a novel silicone hydrogel containing phosphorylcholine. Eur Polym J 2011. [DOI: 10.1016/j.eurpolymj.2011.06.011] [Citation(s) in RCA: 8] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/18/2022]
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19
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Hume PS, Anseth KS. Polymerizable superoxide dismutase mimetic protects cells encapsulated in poly(ethylene glycol) hydrogels from reactive oxygen species-mediated damage. J Biomed Mater Res A 2011; 99:29-37. [PMID: 21793194 DOI: 10.1002/jbm.a.33160] [Citation(s) in RCA: 19] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/14/2011] [Revised: 05/01/2011] [Accepted: 05/06/2011] [Indexed: 01/18/2023]
Abstract
A polymerizable superoxide dismutase mimetic (SODm) was incorporated into poly(ethylene glycol) (PEG) hydrogels to protect encapsulated cells from superoxide-mediated damage. Superoxide and other small reactive oxygen species (ROS) can cause oxidative damage to donor tissue encapsulated within size exclusion barrier materials. To enzymatically breakdown ROS within biomaterial cell encapsulation systems, Mn(III) Tetrakis[1-(3-acryloxy-propyl)-4-pyridyl] porphyrin (MnTTPyP-acryl), a polymerizable manganese metalloporphyrin SOD mimetic, was photopolymerized with PEG diacrylate (PEGDA) to create functional gels. In unmodified PEG hydrogels, a significant reduction in metabolic activity was observed when encapsulated Min6 β-cells were challenged with chemically generated superoxide. Cells encapsulated within MnTPPyP-co-PEG hydrogels, however, demonstrated greatly improved metabolic activity following various superoxide challenges. Further, cells were encapsulated and cultured for 10 days within MnTPPyP-co-PEG hydrogels and challenged with superoxide on days 4, 6, and 8. At the conclusion of this study, cells in blank PEG hydrogels had no observable metabolic activity but when encapsulated in MnTPPyP-functionalized hydrogels, cells retained 60 ± 5% of the metabolic activity compared to untreated controls.
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Affiliation(s)
- Patrick S Hume
- Department of Chemical and Biological Engineering, University of Colorado, 424 UCB, Boulder, Colorado 80309, USA
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20
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Li L, Xin Z. Surface-hydrophilic and protein-resistant tris(trimethylsiloxy)-3-methacryloxypropylsilane-containing polymer by the introduction of phosphorylcholine groups. Colloids Surf A Physicochem Eng Asp 2011. [DOI: 10.1016/j.colsurfa.2011.05.049] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/18/2022]
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Tan H, Rubin JP, Marra KG. Injectable in situ forming biodegradable chitosan-hyaluronic acid based hydrogels for adipose tissue regeneration. Organogenesis 2011; 6:173-80. [PMID: 21197220 DOI: 10.4161/org.6.3.12037] [Citation(s) in RCA: 86] [Impact Index Per Article: 6.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/12/2010] [Accepted: 04/12/2010] [Indexed: 12/22/2022] Open
Abstract
An injectable, biodegradable and glucose-responsive hydrogel derived from natural polysaccharide derivatives was synthesized to deliver adipogenic factor of insulin in vitro for adipose tissue engineering. The biodegradable hydrogel based N-succinyl-chitosan (SCS) and aldehyde hyaluronic acid (AHA) with covalently conjugated glucose oxidase and catalase. The gelation is attributed to the Schiff-base reaction between amino and aldehyde groups of SCS and AHA, respectively. The morphologies and compressive modulus of the freeze-dried hydrogels demonstrated that the incorporated insulin and enzymes results in the formation of a tighter network structure in composite hydrogels. The immobilized enzymes triggered conversion of glucose reduces the pH value of the microenvironment, and results in hydrolysis and increasing swelling of the network basing on Schiff-base cross-linking. The pH inside the hydrogel, kept in PBS solution at pH 7.4 and 37°C, linearly dropped from 7.40 to 7.17 during 4 h of initial period, then slowly increased to 7.36 after 24 h. Correspondingly, the swelling ratio increased from 20.8 to 28.6 at 37°C in PBS with 500 mg/dL glucose. In PBS buffer with 500 mg/dL glucose, about 10.8% of insulin was released from the hydrogel after 8 h of incubation while upon observation. The results demonstrated that the adipogenic factor of insulin would be released from this biodegradable hydrogel device into the local microenvironment in a controlled fashion by the swelling of hydrogel network. These preliminary studies indicate that the biodegradable and glucose-responsive hydrogel may have potential uses in adipose tissue engineering applications.
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Affiliation(s)
- Huaping Tan
- Division of Plastic Surgery, Department of Surgery, University of Pittsburgh, Pittsburgh, PA, USA
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22
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Won YS, Cho D, Kim Y, Lee J, Park SS. Degradation of poly(ethylene glycol) by electrolysis during the Cu electroplating: A combined experimental and density functional theory study. J Appl Polym Sci 2010. [DOI: 10.1002/app.31025] [Citation(s) in RCA: 21] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/08/2022]
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23
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Preparation of low molecular weight alginate by hydrogen peroxide depolymerization for tissue engineering. Carbohydr Polym 2010. [DOI: 10.1016/j.carbpol.2009.09.020] [Citation(s) in RCA: 86] [Impact Index Per Article: 6.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/20/2022]
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Ahmad H, Dupin D, Armes SP, Lewis AL. Synthesis of biocompatible sterically-stabilized poly(2-(methacryloyloxy)ethyl phosphorylcholine) latexes via dispersion polymerization in alcohol/water mixtures. LANGMUIR : THE ACS JOURNAL OF SURFACES AND COLLOIDS 2009; 25:11442-11449. [PMID: 19588940 DOI: 10.1021/la901631a] [Citation(s) in RCA: 15] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/28/2023]
Abstract
Poly(2-(methacryloyloxy)ethyl phosphorylcholine) (PMPC) is soluble in either 2-propanol or water but becomes insoluble in certain alcohol-rich 2-propanol/water mixtures. We have exploited this unusual cononsolvency behavior in order to prepare new biocompatible sterically stabilized PMPC latexes via nonaqueous dispersion polymerization in 2-propanol/water mixtures. All polymerizations were conducted in the presence of monomethoxy-capped poly(ethylene glycol) methacrylate (PEGMA) as a reactive stabilizer, with some formulations including ethylene glycol dimethacrylate (EGDMA) as a cross-linker. Under optimized conditions, unimodal size distributions could be obtained with a mean latex diameter of approximately 1 microm, as judged by laser diffraction and DLS. The mean latex diameter depended on both the PEGMA and initiator concentration but was almost independent of the cross-linking density. Smaller PMPC latexes were obtained by increasing the alcohol content of the dispersion medium. On dilution with water, these latexes acquired microgel character. The microgel solution viscosity was insensitive to added salt due to the so-called "antipolyelectrolyte" effect, which is characteristic of polyzwitterions. Finally, copolymerization of MPC with a fluorescein-based methacrylic comonomer produced fluorescently labeled PMPC latexes, which may have potential biomedical applications.
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Affiliation(s)
- Hasan Ahmad
- Department of Chemistry, University of Sheffield, Brook Hill, Sheffield, South Yorkshire S3 7HF, UK
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Huynh DP, Im GJ, Chae SY, Lee KC, Lee DS. Controlled release of insulin from pH/temperature-sensitive injectable pentablock copolymer hydrogel. J Control Release 2009; 137:20-4. [DOI: 10.1016/j.jconrel.2009.02.021] [Citation(s) in RCA: 114] [Impact Index Per Article: 7.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/11/2008] [Revised: 02/24/2009] [Accepted: 02/27/2009] [Indexed: 10/21/2022]
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26
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Ravaine V, Ancla C, Catargi B. Chemically controlled closed-loop insulin delivery. J Control Release 2008; 132:2-11. [DOI: 10.1016/j.jconrel.2008.08.009] [Citation(s) in RCA: 164] [Impact Index Per Article: 10.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/15/2008] [Accepted: 08/06/2008] [Indexed: 10/21/2022]
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27
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Interactions of poly(2-methacryloyloxyethyl phosphorylcholine) with various salts studied by size exclusion chromatography. Colloid Polym Sci 2008. [DOI: 10.1007/s00396-008-1915-x] [Citation(s) in RCA: 26] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/21/2022]
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28
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Shchukin DG, Gorin DA, Möhwald H. Ultrasonically induced opening of polyelectrolyte microcontainers. LANGMUIR : THE ACS JOURNAL OF SURFACES AND COLLOIDS 2006; 22:7400-4. [PMID: 16893244 DOI: 10.1021/la061047m] [Citation(s) in RCA: 87] [Impact Index Per Article: 4.8] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/11/2023]
Abstract
The effect of ultrasonic treatments of different intensity and duration on the integrity and permeability of polyelectrolyte capsules was investigated both in poly(allylamine)/poly(styrene sulfonate) and Fe(3)O(4)/poly(allylamine)/poly(styrene sulfonate) polyelectrolyte capsules. Ultrasonic treatment of polyelectrolyte capsules induces the destruction of the polyelectrolyte shell and the release of the encapsulated material even at short (5 s) sonification times. The presence of magnetite nanoparticles significantly improves the efficiency of the ultrasonically stimulated release of the encapsulated compounds and enables magnetically controlled delivery to the desired site before ultrasonic treatment. Release of the encapsulated compound induced at ultrasonic power comparable to those of ultrasonic generators applied in medicine, demonstrating practical application of the ultrasonically triggered capsule opening in medicine.
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Affiliation(s)
- Dmitry G Shchukin
- Max-Planck Institute of Colloids and Interfaces, D14424 Potsdam, Germany.
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29
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Goda T, Watanabe J, Takai M, Ishihara K. Water structure and improved mechanical properties of phospholipid polymer hydrogel with phosphorylcholine centered intermolecular cross-linker. POLYMER 2006. [DOI: 10.1016/j.polymer.2005.12.043] [Citation(s) in RCA: 70] [Impact Index Per Article: 3.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/15/2022]
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30
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Hou S, Tian W, Xu Q, Cui F, Zhang J, Lu Q, Zhao C. The enhancement of cell adherence and inducement of neurite outgrowth of dorsal root ganglia co-cultured with hyaluronic acid hydrogels modified with Nogo-66 receptor antagonist in vitro. Neuroscience 2006; 137:519-29. [PMID: 16298084 DOI: 10.1016/j.neuroscience.2005.09.029] [Citation(s) in RCA: 47] [Impact Index Per Article: 2.6] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/29/2005] [Revised: 09/11/2005] [Accepted: 09/17/2005] [Indexed: 10/25/2022]
Abstract
Hyaluronic acid hydrogels modified with polyclonal anti-Nogo-66 receptor antibody were developed in order to promote regeneration in the injured CNS. These modified hydrogels were intended not only to deliver antibodies, but also to serve as a scaffold for neural regeneration following their implantation into injured tissue. Since unmodified hyaluronic acid-hydrogels do not support cell attachment, the gels were modified with polyclonal anti-Nogo-66 receptor with the aim of altering the surface properties of the gels in such a way as to improve neuronal adherence and survival. After evaluating the immobilization efficiency of the system, chicken dorsal root ganglia and dorsal root ganglia cells were planted on the surface of the modified gels to determine cell viability. Dorsal root ganglia were also cultured close to the gels in order to assay the inducement of neurite outgrowth. In dorsal root ganglia and cell viability assay, dorsal root ganglia and neuron cells could adhere to the modified hydrogels and survive well, but it did not happen to unmodified hydrogels. After 72 h, these attached cells were stained positively with immuno-staining for neurofilament. Neurite outgrowth inducement assay showed that the number and length of dorsal root ganglia neurites on the side toward modified hydrogels were significantly more than that on the opposite side (both P<0.01). The results reveal that hyaluronic acid-hydrogels modified with anti-Nogo-66 receptor can support neural cell attachment and survival in vitro. Furthermore, this system can greatly induce neurite outgrowth. The results also indicate that this modified hydrogels have potential to repair injury in the CNS.
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Affiliation(s)
- S Hou
- Beijing Institute for Neuroscience, Capital University of Medical Sciences, You An Men 10, Beijing 100054, PR China
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Nam K, Watanabe J, Ishihara K. The characteristics of spontaneously forming physically cross-linked hydrogels composed of two water-soluble phospholipid polymers for oral drug delivery carrier I: hydrogel dissolution and insulin release under neutral pH condition. Eur J Pharm Sci 2005; 23:261-70. [PMID: 15489127 DOI: 10.1016/j.ejps.2004.07.012] [Citation(s) in RCA: 39] [Impact Index Per Article: 2.1] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/15/2004] [Revised: 07/20/2004] [Accepted: 07/28/2004] [Indexed: 11/19/2022]
Abstract
Hydrogels bearing a phospholipid polar group, 2-methacryloyloxyethyl phosphorylcholine (MPC), were prepared from two aqueous solutions of polymers, water-soluble poly[MPC-co-methacrylic acid (MA)] (PMA) and poly[MPC-co-n-butyl methacrylate (BMA)] (PMB). The hydrogel, which was formed by physical cross-linking spontaneously without any chemical reactions and/or any physical stimuli, showed a controllable insulin release through a pH change in the medium by changing the hydrogen bonds. In this study, the mechanical strength, erosion of the hydrogel caused by polymer dissociation, and the release of insulin were examined with attention to the following three parameters of the MPC polymer: molecular weight of the polymers, composition of PMA and PMB (PMA/PMB ratio), and polymer concentration inside the hydrogel. The hydrogel with the highest mechanical strength was obtained at a PMA/PMB ratio = 3/7 (v/v, by volume ratio) while the hydrogel with the slowest dissolution was obtained at a ratio of 5/5 (v/v). The release was in good match with the dissolution and followed anomalous transport for all, but the diffusion exponent n changed according to the PMA/PMB ratio. An increase in the polymer concentration inside the hydrogel caused an increase in the mechanical strength of the hydrogel. When the polymer concentration was more than 20 wt.%, the absorption of water under neutral pH condition (pH 6.8) was observed. The release of insulin was suppressed below 10% during the swelling process of the hydrogel under neutral pH condition, while release was accelerated during the erosion process of the hydrogel. The relationship between erosion of the hydrogel and the release of the insulin depended on the erosion process of the hydrogel but differed according to the PMA/PMB ratio.
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Affiliation(s)
- Kwangwoo Nam
- Department of Materials Engineering, School of Engineering, The University of Tokyo, 7-3-1 Hongo, Bunkyo-ku, Tokyo 113-8656, Japan
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