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Bian L, Mohammed HS, Shipp DA, Goulet PJG. Raman Microspectroscopy Study of the Hydrolytic Degradation of Polyanhydride Network Polymers. LANGMUIR : THE ACS JOURNAL OF SURFACES AND COLLOIDS 2019; 35:6387-6392. [PMID: 30998022 DOI: 10.1021/acs.langmuir.8b04334] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/09/2023]
Abstract
Raman microspectroscopy was employed in this work to study the degradation of a polyanhydride network polymer synthesized from 4-pentenoic anhydride and pentaerythritol tetrakis(3-mercaptopropionate) monomers in order to illustrate the utility of this method and improve the understanding of the polyanhydride degradation and erosion. Disk-shaped polymer samples were immersed in buffer solutions for different periods of time, and hydrolytic degradation was monitored spatially and temporally via kinetic Raman studies at various depths of penetration into the samples. Erosion, meanwhile, was monitored via mass loss measurements. Dispersive Raman microspectroscopy is shown to be a particularly valuable tool for the study of the hydrolytic degradation of these materials. It confirms that these thiol-ene polyanhydrides are indeed surface eroding, while also revealing that degradation starts to occur at the core of samples on a short time scale (less than 5 h). At any given degradation time, there is a concentration gradient of the unreacted anhydride, with the unreacted anhydride concentration increasing from the outer edge to the center of the polymer samples. Further, the anhydride functionality is found to decrease approximately linearly with degradation time at all depths in the samples, though the degradation rate does appear to increase slightly as degradation occurs.
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Affiliation(s)
- Lina Bian
- Department of Chemistry and Biomolecular Science, and Center for Advanced Materials Processing , Clarkson University , Potsdam , New York 13699-5810 , United States
| | - Halimatu S Mohammed
- Department of Chemistry and Biomolecular Science, and Center for Advanced Materials Processing , Clarkson University , Potsdam , New York 13699-5810 , United States
| | - Devon A Shipp
- Department of Chemistry and Biomolecular Science, and Center for Advanced Materials Processing , Clarkson University , Potsdam , New York 13699-5810 , United States
| | - Paul J G Goulet
- Department of Chemistry and Biomolecular Science, and Center for Advanced Materials Processing , Clarkson University , Potsdam , New York 13699-5810 , United States
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Chen F, Zhu WP, Shen ZQ. Homopolymerization and Copolymerization of Adipic Anhydride withɛ-Caprolactone Catalyzed by Rare Earth Trisphenolate. CHINESE J CHEM 2007. [DOI: 10.1002/cjoc.200790076] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/10/2022]
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Dinarvand R, Alimorad MM, Amanlou M, Akbari H. Preparation, characterization andin vitro drug release properties of polytrimethylene carbonate/polyadipic anhydride blend microspheres. J Appl Polym Sci 2006. [DOI: 10.1002/app.23861] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/12/2022]
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Gunatillake P, Mayadunne R, Adhikari R. Recent developments in biodegradable synthetic polymers. BIOTECHNOLOGY ANNUAL REVIEW 2006; 12:301-47. [PMID: 17045198 DOI: 10.1016/s1387-2656(06)12009-8] [Citation(s) in RCA: 181] [Impact Index Per Article: 10.1] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 12/02/2022]
Abstract
This chapter reviews recent developments in biodegradable synthetic polymers focusing on tailoring polymer structures to meet material specification for emerging applications such as tissue engineered products and therapies. Major classes and new families of synthetic polymers are discussed with regard to synthesis, properties and biodegradability, and known degradation modes and products are summarized based on studies reported during the past 10-15 years. Polyesters and their copolymers, polyurethanes, polyphosphazenes, polyanhydrides, polycarbonates, polyesteramides and recently developed injectable polymer systems based on polypropylenefumarates, polyurethanes and acrylate/urethane systems are reviewed. Polyesters such as polyglycolides, polylactides and their copolymers still remain as the major class of synthetic biodegradable polymers with products in clinical use. Although various copolymerization methods have addressed needs of different applications, release of acidic degradation products, processing difficulties and limited range of mechanical properties remains as major disadvantages of this family of polymers. Injectable polymers based on urethane and urethane/acrylate have shown great promise in developing delivery systems for tissue engineered products and therapies.
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Affiliation(s)
- Pathiraja Gunatillake
- PolyNovo Biomaterials Pty Ltd, Bag 10, Clayton South, Bayview Avenue, Clayton 3169, Australia.
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Dinarvand R, Alimorad MM, Amanlou M, Akbari H. In vitro release of clomipramine HCl and buprenorphine HCl from poly adipic anhydride (PAA) and poly trimethylene carbonate (PTMC) blends. J Biomed Mater Res A 2005; 75:185-91. [PMID: 16044413 DOI: 10.1002/jbm.a.30398] [Citation(s) in RCA: 12] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/07/2022]
Abstract
Controlled drug-delivery technology is concerned with the systematic release of a pharmaceutical agent to maintain a therapeutic level of the drug in the body for modulated and/or prolonged periods of time. This may be achieved by incorporating the therapeutic agent into a degradable polymer vehicle, which releases the agent continuously as the matrix erodes. In this study, poly trimethylene carbonate (PTMC), an aliphatic polycarbonate, and poly adipic anhydride (PAA), an aliphatic polyanhydride, were synthesized via melt condensation and ring-opening polymerization of trimethylene carbonate and adipic acid, respectively. The release of clomipramine HCl and buprenorphine HCl from discs prepared with the use of PTMC-PAA blends in phosphate buffer (pH 7.4) are also described. Clomipramine HCl and buprenorphine HCl were both used as hydrophilic drug models. Theoretical treatment of the data with the Peppas model revealed that release of clomipramine HCl (5%) in devices containing 70% PTMC or more followed a Fickian diffusion model. However, the releases of buprenorphine HCl (5%) in the same devices were anomalous. For devices containing 50% and more PAA, surface erosion may play a significant role in the release of both molecules.
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Affiliation(s)
- Rassoul Dinarvand
- Department of Pharmaceutics, Faculty of Pharmacy, Tehran University of Medical Sciences, P. O. Box 14155-6451, Tehran, Iran.
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Abstract
Polyanhydrides have been considered to be useful biomaterials as carriers of drugs to various organs of the human body such as brain, bone, blood vessels, and eyes. They can be prepared easily from available, low cost resources and can be manipulated to meet desirable characteristics. Polyanhydrides are biocompatible and degrade in vivo into non-toxic diacid counterparts that are eliminated from the body as metabolites. Owing to their usefulness, this review focuses on the development, synthesis methods, structures and characterization of polyanhydrides, which will provide an overview for the researchers in the field. Their in vitro and in vivo degradability, toxicity, biocompatibility and applications are discussed in the subsequent chapters of this special issue on polyanhydrides and poly(ortho esters).
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Affiliation(s)
- Neeraj Kumar
- Department of Medicinal Chemistry and Natural Products, School of Pharmacy, Faculty of Medicine, The Hebrew University of Jerusalem, Jerusalem 91120, Israel
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Leadley SR, Davies MC, Domb A, Nudelman R, Paul AJ, Beamson G. Analysis of the Surface Chemical Structure of Copolymers of Poly(sebacic anhydride) with Ricinoleic Acid Maleate Using XPS and ToF−SIMS. Macromolecules 1998. [DOI: 10.1021/ma960981t] [Citation(s) in RCA: 7] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
Affiliation(s)
- S. R. Leadley
- Laboratory of Biophysics and Surface Analysis, Department of Pharmaceutical Sciences, The University of Nottingham, Nottingham NG7 2RD, U.K. The School of Pharmacy, Department of Pharmaceutical Chemistry, The Hebrew University Jerusalem, Jerusalem, Israel 91120, CSMA Ltd., Armstrong House, Oxford Road, Manchester, M1 7ED, U.K., and RUSTI, Daresbury Laboratory, Warrington, Cheshire, WA4 4AD, U.K
| | - M. C. Davies
- Laboratory of Biophysics and Surface Analysis, Department of Pharmaceutical Sciences, The University of Nottingham, Nottingham NG7 2RD, U.K. The School of Pharmacy, Department of Pharmaceutical Chemistry, The Hebrew University Jerusalem, Jerusalem, Israel 91120, CSMA Ltd., Armstrong House, Oxford Road, Manchester, M1 7ED, U.K., and RUSTI, Daresbury Laboratory, Warrington, Cheshire, WA4 4AD, U.K
| | - A. Domb
- Laboratory of Biophysics and Surface Analysis, Department of Pharmaceutical Sciences, The University of Nottingham, Nottingham NG7 2RD, U.K. The School of Pharmacy, Department of Pharmaceutical Chemistry, The Hebrew University Jerusalem, Jerusalem, Israel 91120, CSMA Ltd., Armstrong House, Oxford Road, Manchester, M1 7ED, U.K., and RUSTI, Daresbury Laboratory, Warrington, Cheshire, WA4 4AD, U.K
| | - R. Nudelman
- Laboratory of Biophysics and Surface Analysis, Department of Pharmaceutical Sciences, The University of Nottingham, Nottingham NG7 2RD, U.K. The School of Pharmacy, Department of Pharmaceutical Chemistry, The Hebrew University Jerusalem, Jerusalem, Israel 91120, CSMA Ltd., Armstrong House, Oxford Road, Manchester, M1 7ED, U.K., and RUSTI, Daresbury Laboratory, Warrington, Cheshire, WA4 4AD, U.K
| | - A. J. Paul
- Laboratory of Biophysics and Surface Analysis, Department of Pharmaceutical Sciences, The University of Nottingham, Nottingham NG7 2RD, U.K. The School of Pharmacy, Department of Pharmaceutical Chemistry, The Hebrew University Jerusalem, Jerusalem, Israel 91120, CSMA Ltd., Armstrong House, Oxford Road, Manchester, M1 7ED, U.K., and RUSTI, Daresbury Laboratory, Warrington, Cheshire, WA4 4AD, U.K
| | - G. Beamson
- Laboratory of Biophysics and Surface Analysis, Department of Pharmaceutical Sciences, The University of Nottingham, Nottingham NG7 2RD, U.K. The School of Pharmacy, Department of Pharmaceutical Chemistry, The Hebrew University Jerusalem, Jerusalem, Israel 91120, CSMA Ltd., Armstrong House, Oxford Road, Manchester, M1 7ED, U.K., and RUSTI, Daresbury Laboratory, Warrington, Cheshire, WA4 4AD, U.K
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Shard AG, Davies MC, Li YX, Volland C, Kissel T. XPS and SSIMS Analysis Revealing Surface Segregation and Short-Range Order in Solid Films of Block Copolymers of PEO and PLGA. Macromolecules 1997. [DOI: 10.1021/ma9519021] [Citation(s) in RCA: 27] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
Affiliation(s)
- A. G. Shard
- Laboratory of Biophysics and Surface Analysis, Department of Pharmaceutical Sciences, Nottingham University, Nottingham NG7 2RD, U.K., and Institüte für Pharmazeutische Technologie und Biopharmazie, Philipps-Universitat, D-35032, Marburg, Germany
| | - M. C. Davies
- Laboratory of Biophysics and Surface Analysis, Department of Pharmaceutical Sciences, Nottingham University, Nottingham NG7 2RD, U.K., and Institüte für Pharmazeutische Technologie und Biopharmazie, Philipps-Universitat, D-35032, Marburg, Germany
| | - Y. X. Li
- Laboratory of Biophysics and Surface Analysis, Department of Pharmaceutical Sciences, Nottingham University, Nottingham NG7 2RD, U.K., and Institüte für Pharmazeutische Technologie und Biopharmazie, Philipps-Universitat, D-35032, Marburg, Germany
| | - C. Volland
- Laboratory of Biophysics and Surface Analysis, Department of Pharmaceutical Sciences, Nottingham University, Nottingham NG7 2RD, U.K., and Institüte für Pharmazeutische Technologie und Biopharmazie, Philipps-Universitat, D-35032, Marburg, Germany
| | - T. Kissel
- Laboratory of Biophysics and Surface Analysis, Department of Pharmaceutical Sciences, Nottingham University, Nottingham NG7 2RD, U.K., and Institüte für Pharmazeutische Technologie und Biopharmazie, Philipps-Universitat, D-35032, Marburg, Germany
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Davies MC, Shakesheff KM, Shard AG, Domb A, Roberts CJ, Tendler SJB, Williams PM. Surface Analysis of Biodegradable Polymer Blends of Poly(sebacic anhydride) and Poly(dl-lactic acid). Macromolecules 1996. [DOI: 10.1021/ma950889h] [Citation(s) in RCA: 85] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
Affiliation(s)
- M. C. Davies
- Laboratory of Biophysics and Surface Analysis, Department of Pharmaceutical Sciences, The University of Nottingham, Nottingham NG7 2RD, U.K
| | - K. M. Shakesheff
- Laboratory of Biophysics and Surface Analysis, Department of Pharmaceutical Sciences, The University of Nottingham, Nottingham NG7 2RD, U.K
| | - A. G. Shard
- Laboratory of Biophysics and Surface Analysis, Department of Pharmaceutical Sciences, The University of Nottingham, Nottingham NG7 2RD, U.K
| | - A. Domb
- Laboratory of Biophysics and Surface Analysis, Department of Pharmaceutical Sciences, The University of Nottingham, Nottingham NG7 2RD, U.K
| | - C. J. Roberts
- Laboratory of Biophysics and Surface Analysis, Department of Pharmaceutical Sciences, The University of Nottingham, Nottingham NG7 2RD, U.K
| | - S. J. B. Tendler
- Laboratory of Biophysics and Surface Analysis, Department of Pharmaceutical Sciences, The University of Nottingham, Nottingham NG7 2RD, U.K
| | - P. M. Williams
- Laboratory of Biophysics and Surface Analysis, Department of Pharmaceutical Sciences, The University of Nottingham, Nottingham NG7 2RD, U.K
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Shard AG, Volland C, Davies MC, Kissel T. Information on the Monomer Sequence of Poly(lactic acid) and Random Copolymers of Lactic Acid and Glycolic Acid by Examination of Static Secondary Ion Mass Spectrometry Ion Intensities. Macromolecules 1996. [DOI: 10.1021/ma950622i] [Citation(s) in RCA: 37] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
Affiliation(s)
- A. G. Shard
- Laboratory of Biophysics and Surface Analysis, Department of Pharmaceutical Sciences, Nottingham University, Nottingham NG7 2RD, U.K., and Institüt für Pharmazeutische Technologie und Biopharmazie, Philipps-Universitat, D-35032 Marburg, Germany
| | - C. Volland
- Laboratory of Biophysics and Surface Analysis, Department of Pharmaceutical Sciences, Nottingham University, Nottingham NG7 2RD, U.K., and Institüt für Pharmazeutische Technologie und Biopharmazie, Philipps-Universitat, D-35032 Marburg, Germany
| | - M. C. Davies
- Laboratory of Biophysics and Surface Analysis, Department of Pharmaceutical Sciences, Nottingham University, Nottingham NG7 2RD, U.K., and Institüt für Pharmazeutische Technologie und Biopharmazie, Philipps-Universitat, D-35032 Marburg, Germany
| | - T. Kissel
- Laboratory of Biophysics and Surface Analysis, Department of Pharmaceutical Sciences, Nottingham University, Nottingham NG7 2RD, U.K., and Institüt für Pharmazeutische Technologie und Biopharmazie, Philipps-Universitat, D-35032 Marburg, Germany
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Domb AJ, Amselem S, Shah J, Maniar M. Polyanhydrides: Synthesis and characterization. BIOPOLYMERS I 1993. [DOI: 10.1007/bfb0027552] [Citation(s) in RCA: 54] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 12/13/2022]
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Leggett GJ, Vickerman JC. An empirical model for ion formation from polymer surfaces during analysis by secondary ion mass spectrometry. ACTA ACUST UNITED AC 1992. [DOI: 10.1016/0168-1176(92)87021-6] [Citation(s) in RCA: 56] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/01/2022]
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Davies MC, Khan MA, Lynn RA, Heller J, Watts JF. X-ray photoelectron spectroscopy analysis of the surface chemical structure of some biodegradable poly(orthoesters). Biomaterials 1991; 12:305-8. [PMID: 1854897 DOI: 10.1016/0142-9612(91)90038-c] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/29/2022]
Abstract
The surface analysis of some biodegradable poly(orthoesters) has been undertaken using X-ray photoelectron spectroscopy (XPS). There is very good agreement between the experimental and theoretical surface compositions. All the carbon environments of the poly(orthoesters) are detected within the high-resolution C1s peak envelopes and again, good agreement is observed between the theoretical and experimental proportions of each carbon environment. The data confirm the high surface purity of these polymers and demonstrate the potential for the use of XPS in future studies of the solid state in-situ degradation of poly(orthoesters).
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Affiliation(s)
- M C Davies
- Department of Pharmaceutical Sciences, School of Pharmacy, Univeristy of Nottingham, UK
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