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Hong Y, Liu D, Zou H, Jia Q, Tang S, Lin Q. Refractive index adjustable intraocular lens design to achieve diopter control for improving the treatment of ametropia after cataract surgery. Acta Biomater 2024; 178:124-136. [PMID: 38423352 DOI: 10.1016/j.actbio.2024.02.033] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/05/2024] [Revised: 02/17/2024] [Accepted: 02/20/2024] [Indexed: 03/02/2024]
Abstract
Intraocular lens (IOL) implantation is currently the most effective clinical treatment for cataracts. Nevertheless, due to the growth of the eye axis in patients with congenital cataracts during the process of growth and development, the progressive incapacity of an IOL with a fixed focus does not meet the demands of practical usage, leading to the occurrence of ametropia. This work describes an innovative class of an IOL bulk material that offers good biosafety and light-controlled refractive index adjustment. Acrylate materials were synthesized for the preparation of IOLs by free radical polymerization of ethylene glycol phenyl ether methacrylate (EGPEMA), hydrophilic monomer 2-(2-ethoxyethoxy) ethyl acrylate (EA), and functional monomer hydroxymethyl coumarin methacrylate (CMA). Under 365/254 nm ultraviolet (UV) irradiation, the coumarin group could adjust the polymer material's refractive index through reversible photoinduced dimerization/depolymerization. Meanwhile, the potential for the IOL use is enabled by its satisfactory biosafety. Such a light-induced diopter adjustable IOL will be more appropriate for implantation during cataract surgery since it will not require the correction needed for ametropia and will offer more accurate and humane treatment. STATEMENT OF SIGNIFICANCE.
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Affiliation(s)
- Yueze Hong
- National Engineering Research Center of Ophthalmology and Optometry, School of Biomedical Engineering, School of Ophthalmology and Optometry, Eye Hospital, Wenzhou Medical University, Wenzhou 325027, China
| | - Dong Liu
- National Engineering Research Center of Ophthalmology and Optometry, School of Biomedical Engineering, School of Ophthalmology and Optometry, Eye Hospital, Wenzhou Medical University, Wenzhou 325027, China
| | - Haoyu Zou
- National Engineering Research Center of Ophthalmology and Optometry, School of Biomedical Engineering, School of Ophthalmology and Optometry, Eye Hospital, Wenzhou Medical University, Wenzhou 325027, China
| | - Qingqing Jia
- National Engineering Research Center of Ophthalmology and Optometry, School of Biomedical Engineering, School of Ophthalmology and Optometry, Eye Hospital, Wenzhou Medical University, Wenzhou 325027, China
| | - Sihan Tang
- National Engineering Research Center of Ophthalmology and Optometry, School of Biomedical Engineering, School of Ophthalmology and Optometry, Eye Hospital, Wenzhou Medical University, Wenzhou 325027, China
| | - Quankui Lin
- National Engineering Research Center of Ophthalmology and Optometry, School of Biomedical Engineering, School of Ophthalmology and Optometry, Eye Hospital, Wenzhou Medical University, Wenzhou 325027, China.
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2
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Hu Y, Wang J, Hong Y, Han Y, Liang L, Yang Y, Wu Z, Lin Q. Photo-controllable drug releasing bulk polyacrylic intraocular lens material for safer posterior capsular opacification prevention. J Control Release 2024; 366:494-504. [PMID: 38185335 DOI: 10.1016/j.jconrel.2024.01.007] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/06/2023] [Revised: 01/02/2024] [Accepted: 01/03/2024] [Indexed: 01/09/2024]
Abstract
Posterior capsular opacification (PCO) is the most common complication that occurs after intraocular lens (IOL) implantation in cataract therapy. In recent years, IOLs have been developed as drug delivery platforms, but concerns over the safety of uncontrolled proliferative drug release have arisen. Therefore, a controlled drug release strategy is needed for safer PCO prevention. In this study, a new monomer contained coumarin group was introduced in material preparation, and poly(ethylene glycol phenyl ether methacrylate-co-2-(2-ethoxyethoxy) ethyl acrylate-co-7-(2-methacryloyloxyethoxy)-4-methylcoumarin) (PEEC) acrylic IOL materials were synthesized. The antiproliferative drug 5-fluorouracil (5-FU) could be chemically grafted to the PEEC IOL materials easily via a light induced [2 + 2] cycloaddition reaction with the coumarin group, getting drug-loaded IOL (PEEC@5-FU IOL). The PEEC@5-FU IOL exhibited excellent optical and mechanical properties and biocompatibility. More importantly, the loaded 5-FU could be easily controlled from release by light irradiation via photo-dissociation of the cyclobutane ring that was obtained by the [2 + 2] cycloaddition reaction of 5-FU and coumarin. The in vitro and in vivo experiments demonstrated that such photo-controllable drug release IOL could effectively prevent PCO after implantation in a safe way.
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Affiliation(s)
- Yulin Hu
- National Engineering Research Center of Ophthalmology and Optometry, School of Biomedical Engineering, School of Ophthalmology and Optometry, Eye Hospital, Wenzhou Medical University, Wenzhou 325027, China
| | - Jiahao Wang
- National Engineering Research Center of Ophthalmology and Optometry, School of Biomedical Engineering, School of Ophthalmology and Optometry, Eye Hospital, Wenzhou Medical University, Wenzhou 325027, China
| | - Yueze Hong
- National Engineering Research Center of Ophthalmology and Optometry, School of Biomedical Engineering, School of Ophthalmology and Optometry, Eye Hospital, Wenzhou Medical University, Wenzhou 325027, China
| | - Yuemei Han
- National Engineering Research Center of Ophthalmology and Optometry, School of Biomedical Engineering, School of Ophthalmology and Optometry, Eye Hospital, Wenzhou Medical University, Wenzhou 325027, China
| | - Lin Liang
- National Engineering Research Center of Ophthalmology and Optometry, School of Biomedical Engineering, School of Ophthalmology and Optometry, Eye Hospital, Wenzhou Medical University, Wenzhou 325027, China
| | - Yuexin Yang
- National Engineering Research Center of Ophthalmology and Optometry, School of Biomedical Engineering, School of Ophthalmology and Optometry, Eye Hospital, Wenzhou Medical University, Wenzhou 325027, China
| | - Zhihui Wu
- National Engineering Research Center of Ophthalmology and Optometry, School of Biomedical Engineering, School of Ophthalmology and Optometry, Eye Hospital, Wenzhou Medical University, Wenzhou 325027, China
| | - Quankui Lin
- National Engineering Research Center of Ophthalmology and Optometry, School of Biomedical Engineering, School of Ophthalmology and Optometry, Eye Hospital, Wenzhou Medical University, Wenzhou 325027, China.
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3
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Light-responsive biomaterials for ocular drug delivery. Drug Deliv Transl Res 2022:10.1007/s13346-022-01196-5. [PMID: 35751001 DOI: 10.1007/s13346-022-01196-5] [Citation(s) in RCA: 7] [Impact Index Per Article: 3.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Accepted: 06/09/2022] [Indexed: 11/03/2022]
Abstract
Light-responsive biomaterials can be used for the delivery of therapeutic drugs and nucleic acids, where the tunable/precise delivery of payload highlights the potential of such biomaterials for treating a variety of conditions. The translucency of eyes and advances of laser technology in ophthalmology make light-responsive delivery of drugs feasible. Importantly, light can be applied in a non-invasive fashion; therefore, light-triggered drug delivery systems have great potential for clinical impact. This review will examine various types of light-responsive polymers and the chemistry that underpins their application as ophthalmic drug delivery systems.
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Lu D, Han Y, Liu D, Chen S, Qie J, Qu J, Lin Q. Centrifugally concentric ring-patterned drug-loaded polymeric coating as an intraocular lens surface modification for efficient prevention of posterior capsular opacification. Acta Biomater 2022; 138:327-341. [PMID: 34800717 DOI: 10.1016/j.actbio.2021.11.018] [Citation(s) in RCA: 19] [Impact Index Per Article: 9.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/26/2021] [Revised: 10/25/2021] [Accepted: 11/12/2021] [Indexed: 02/06/2023]
Abstract
Posterior capsular opacification (PCO) is the main postoperative complication after intraocular lens (IOL) implantation in cataract surgery, because of the proliferation of the residual lens epithelial cells (LECs) in the lens capsule. Drug-eluting IOLs, aimed to develop an in situ drug delivery device, are the promising concept in recent years. As IOLs are optical devices other than implants, the feasibility and applicability remain a challenge for drug-eluting coatings. In this investigation, a centrifugally concentric ring-patterned drug-loaded poly(lactide-co-glycolic acid) (PLGA) coating was designed and fabricated by the spin coating technique. The concentric ring-patterned morphologies and the drug loading and release properties were carefully investigated, and the spin coating parameters were optimized. A concentric annular coating with a thin center and thick periphery was obtained, which was particularly suitable for the surface modification of IOLs, as the visual pathway of the intraocular light transmission greatly requires good light transmittance of the IOLs. IOLs with the immunosuppressant cyclosporin A (CsA)-loaded coating (CsA @ PLGA) modification were then fabricated for PCO prevention. The in vitro LECs culture results showed that the CsA @ PLGA coating-modified IOLs significantly inhibited cell proliferation and induced cell death. Western blot analysis showed that the efficient cell inhibition behavior of CsA was due to the autophagy-mediated cell death pathway. The in vivo intraocular implantation results confirmed the desired PCO inhibition effect. Thus, the centrifugally concentric ring-patterned drug-loaded PLGA coating obtained by the spin coating technique provides a simple yet effective alternative of IOL modification for PCO prevention. STATEMENT OF SIGNIFICANCE: • Concentric ring-patterned polymer coating, specifically for drug-eluting IOL fabrication, was developed by the spin coating technique. • The immunosuppressant CsA inhibited LEC proliferation through the autophagy-mediated cell death pathway. • Concentric ring-patterned CsA-eluting IOLs exhibited reliable in vivo PCO prevention. • The drug-eluting IOLs fabricated by the simple and economical spin coating technique have a great potential in clinical translation.
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Affiliation(s)
- Duoduo Lu
- School of Ophthalmology & Optometry, Eye Hospital, Wenzhou Medical University, Wenzhou 325027, PR China
| | - Yuemei Han
- School of Ophthalmology & Optometry, Eye Hospital, Wenzhou Medical University, Wenzhou 325027, PR China
| | - Dong Liu
- School of Ophthalmology & Optometry, Eye Hospital, Wenzhou Medical University, Wenzhou 325027, PR China
| | - Siqi Chen
- School of Ophthalmology & Optometry, Eye Hospital, Wenzhou Medical University, Wenzhou 325027, PR China
| | - Jiqiao Qie
- School of Ophthalmology & Optometry, Eye Hospital, Wenzhou Medical University, Wenzhou 325027, PR China
| | - Jia Qu
- School of Ophthalmology & Optometry, Eye Hospital, Wenzhou Medical University, Wenzhou 325027, PR China.
| | - Quankui Lin
- School of Ophthalmology & Optometry, Eye Hospital, Wenzhou Medical University, Wenzhou 325027, PR China.
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Wang L, Chen J, Sha Y, Hussain I, Yu B, Wu L, Shi Y, Gu Q, Luo Z, Ma X. Photo-healable Ion Gel with High Mechanical Property, Fatigue Resistance and Shear Resistance Using a Coumarin Group Containing Diblock Copolymer in an Ionic Liquid. Eur Polym J 2022. [DOI: 10.1016/j.eurpolymj.2022.111002] [Citation(s) in RCA: 2] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/11/2022]
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6
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Wang L, Ma X, Wu L, Sha Y, Yu B, Lan X, Luo Y, Shi Y, Wang Y, Luo Z. Coumarin derivative trigger controlled photo-healing of ion gels and photo-controlled reversible adhesiveness. Eur Polym J 2021. [DOI: 10.1016/j.eurpolymj.2020.110213] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/22/2022]
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7
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Cazin I, Rossegger E, Guedes de la Cruz G, Griesser T, Schlögl S. Recent Advances in Functional Polymers Containing Coumarin Chromophores. Polymers (Basel) 2020; 13:E56. [PMID: 33375724 PMCID: PMC7794725 DOI: 10.3390/polym13010056] [Citation(s) in RCA: 18] [Impact Index Per Article: 4.5] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/28/2020] [Revised: 12/19/2020] [Accepted: 12/20/2020] [Indexed: 11/17/2022] Open
Abstract
Natural and synthetic coumarin derivatives have gained increased attention in the design of functional polymers and polymer networks due to their unique optical, biological, and photochemical properties. This review provides a comprehensive overview over recent developments in macromolecular architecture and mainly covers examples from the literature published from 2004 to 2020. Along with a discussion on coumarin and its photochemical properties, we focus on polymers containing coumarin as a nonreactive moiety as well as polymer systems exploiting the dimerization and/or reversible nature of the [2πs + 2πs] cycloaddition reaction. Coumarin moieties undergo a reversible [2πs + 2πs] cycloaddition reaction upon irradiation with specific wavelengths in the UV region, which is applied to impart intrinsic healability, shape-memory, and reversible properties into polymers. In addition, coumarin chromophores are able to dimerize under the exposure to direct sunlight, which is a promising route for the synthesis and cross-linking of polymer systems under "green" and environment-friendly conditions. Along with the chemistry and design of coumarin functional polymers, we highlight various future application fields of coumarin containing polymers involving tissue engineering, drug delivery systems, soft robotics, or 4D printing applications.
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Affiliation(s)
- Ines Cazin
- Polymer Competence Center Leoben GmbH, Roseggerstrasse 12, 8700 Leoben, Austria; (I.C.); (E.R.)
| | - Elisabeth Rossegger
- Polymer Competence Center Leoben GmbH, Roseggerstrasse 12, 8700 Leoben, Austria; (I.C.); (E.R.)
| | - Gema Guedes de la Cruz
- Department Polymer Engineering and Science, Institute Chemistry of Polymeric Materials, Montanuniversitaet Leoben, Otto Glöckel-Strasse 2, 8700 Leoben, Austria; (G.G.d.l.C.); (T.G.)
| | - Thomas Griesser
- Department Polymer Engineering and Science, Institute Chemistry of Polymeric Materials, Montanuniversitaet Leoben, Otto Glöckel-Strasse 2, 8700 Leoben, Austria; (G.G.d.l.C.); (T.G.)
| | - Sandra Schlögl
- Polymer Competence Center Leoben GmbH, Roseggerstrasse 12, 8700 Leoben, Austria; (I.C.); (E.R.)
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8
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Seoane-Rivero R, Ruiz-Bilbao E, Navarro R, Laza JM, Cuevas JM, Artetxe B, Gutiérrez-Zorrilla JM, Vilas-Vilela JL, Marcos-Fernandez Á. Structural Characterization of Mono and Dihydroxylated Umbelliferone Derivatives. Molecules 2020; 25:molecules25153497. [PMID: 32751979 PMCID: PMC7436329 DOI: 10.3390/molecules25153497] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/23/2020] [Revised: 07/22/2020] [Accepted: 07/28/2020] [Indexed: 12/03/2022] Open
Abstract
Coumarin derivatives are a class of compounds with a pronounced wide range of applications, especially in biological activities, in the medicine, pharmacology, cosmetics, coatings and food industry. Their potential applications are highly dependent on the nature of the substituents attached to their nucleus. These substituents modulate their photochemical and photophysical properties, as well as their interactions in their crystalline form, which largely determines the final field of application. Therefore, in this work a series of mono and dihydroxylated coumarin derivatives with different chemical substituents were synthesized and characterized by UV-Visible spectroscopy, thermal analysis (differential scanning calorimetry (DSC) and TGA), 1H NMR and X-Ray Diffraction to identify limitations and possibilities as a function of the molecular structure for expanding their applications in polymer science.
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Affiliation(s)
- Rubén Seoane-Rivero
- GAIKER Technology Centre, Basque Research and Technology Alliance (BRTA), Parque Tecnológico de Bizkaia, edificio 202, E-48170 Zamudio, Spain;
- Correspondence: (R.S.-R.); (R.N.)
| | - Estibaliz Ruiz-Bilbao
- Departamento de Química Inorgánica, University of the Basque Country UPV/EHU, Apartado 644, 48080 Bilbao, Spain; (E.R.-B.); (B.A.); (J.M.G.-Z.)
| | - Rodrigo Navarro
- Instituto de Ciencia y Tecnología de Polímeros (CSIC), Juan de la Cierva 3, 28006 Madrid, Spain;
- Interdisciplinary Platform for “Sustainable Plastics towards a Circular Economy” (SUSPLAST-CSIC), 28006 Madrid, Spain
- Correspondence: (R.S.-R.); (R.N.)
| | - José Manuel Laza
- Departamento de Química Física, University of the Basque Country UPV/EHU, Apartado 644, 48080 Bilbao, Spain; (J.M.L.); (J.L.V.-V.)
| | - José María Cuevas
- GAIKER Technology Centre, Basque Research and Technology Alliance (BRTA), Parque Tecnológico de Bizkaia, edificio 202, E-48170 Zamudio, Spain;
| | - Beñat Artetxe
- Departamento de Química Inorgánica, University of the Basque Country UPV/EHU, Apartado 644, 48080 Bilbao, Spain; (E.R.-B.); (B.A.); (J.M.G.-Z.)
| | - Juan M. Gutiérrez-Zorrilla
- Departamento de Química Inorgánica, University of the Basque Country UPV/EHU, Apartado 644, 48080 Bilbao, Spain; (E.R.-B.); (B.A.); (J.M.G.-Z.)
| | - José Luis Vilas-Vilela
- Departamento de Química Física, University of the Basque Country UPV/EHU, Apartado 644, 48080 Bilbao, Spain; (J.M.L.); (J.L.V.-V.)
| | - Ángel Marcos-Fernandez
- Instituto de Ciencia y Tecnología de Polímeros (CSIC), Juan de la Cierva 3, 28006 Madrid, Spain;
- Interdisciplinary Platform for “Sustainable Plastics towards a Circular Economy” (SUSPLAST-CSIC), 28006 Madrid, Spain
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9
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Abousalman-Rezvani Z, Eskandari P, Roghani-Mamaqani H, Salami-Kalajahi M. Synthesis of coumarin-containing multi-responsive CNC-grafted and free copolymers with application in nitrate ion removal from aqueous solutions. Carbohydr Polym 2019; 225:115247. [DOI: 10.1016/j.carbpol.2019.115247] [Citation(s) in RCA: 41] [Impact Index Per Article: 8.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/21/2019] [Revised: 08/23/2019] [Accepted: 08/23/2019] [Indexed: 12/21/2022]
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10
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Abousalman-Rezvani Z, Eskandari P, Roghani-Mamaqani H, Mardani H, Salami-Kalajahi M. Grafting light-, temperature, and CO2-responsive copolymers from cellulose nanocrystals by atom transfer radical polymerization for adsorption of nitrate ions. POLYMER 2019. [DOI: 10.1016/j.polymer.2019.121830] [Citation(s) in RCA: 43] [Impact Index Per Article: 8.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/25/2022]
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11
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Abid S, Hussain T, Raza ZA, Nazir A. Current applications of electrospun polymeric nanofibers in cancer therapy. MATERIALS SCIENCE & ENGINEERING. C, MATERIALS FOR BIOLOGICAL APPLICATIONS 2019; 97:966-977. [DOI: 10.1016/j.msec.2018.12.105] [Citation(s) in RCA: 47] [Impact Index Per Article: 9.4] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Received: 02/16/2018] [Revised: 09/03/2018] [Accepted: 12/25/2018] [Indexed: 12/20/2022]
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12
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Bruneau M, Bennici S, Brendle J, Dutournie P, Limousy L, Pluchon S. Systems for stimuli-controlled release: Materials and applications. J Control Release 2019; 294:355-371. [DOI: 10.1016/j.jconrel.2018.12.038] [Citation(s) in RCA: 54] [Impact Index Per Article: 10.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/03/2018] [Revised: 12/20/2018] [Accepted: 12/21/2018] [Indexed: 01/15/2023]
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13
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Iturmendi A, Theis S, Maderegger D, Monkowius U, Teasdale I. Coumarin-Caged Polyphosphazenes with a Visible-Light Driven On-Demand Degradation. Macromol Rapid Commun 2018; 39:e1800377. [PMID: 30048024 DOI: 10.1002/marc.201800377] [Citation(s) in RCA: 16] [Impact Index Per Article: 2.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/16/2018] [Revised: 06/28/2018] [Indexed: 01/08/2023]
Abstract
Polymers that, upon photochemical activation with visible light, undergo rapid degradation to small molecules are described. Through functionalization of a polyphosphazene backbone with pendant coumarin groups sensitive to light, polymers which are stable in the dark could be prepared. Upon irradiation, cleavage of the coumarin moieties exposes carboxylic acid moieties along the polymer backbone. The subsequent macromolecular photoacid is found to catalyze the rapid hydrolytic degradation of the polyphosphazene backbone. Water-soluble and non-water-soluble polymers are reported, which due to their sensitivity toward light in the visible region could be significant as photocleavable materials in biological applications.
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Affiliation(s)
- Aitziber Iturmendi
- Institute of Polymer Chemistry, Johannes Kepler University Linz, Altenberger Strasse 69,, 4040, Linz, Austria
| | - Sabrina Theis
- Institute of Inorganic Chemistry, Johannes Kepler University Linz, Altenberger Strasse 69,, 4040, Linz, Austria
| | - Dominik Maderegger
- Institute of Polymer Chemistry, Johannes Kepler University Linz, Altenberger Strasse 69,, 4040, Linz, Austria
| | - Uwe Monkowius
- Linz School of Education, Johannes Kepler University Linz, Altenberger Strasse 69,, 4040, Linz, Austria
| | - Ian Teasdale
- Institute of Polymer Chemistry, Johannes Kepler University Linz, Altenberger Strasse 69,, 4040, Linz, Austria
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14
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Madadian-Bozorg N, Zahedi P, Shamsi M, Safarian S. Poly (methacrylic acid)-based molecularly imprinted polymer nanoparticles containing 5-fluourouracil used in colon cancer therapy potentially. POLYM ADVAN TECHNOL 2018. [DOI: 10.1002/pat.4353] [Citation(s) in RCA: 13] [Impact Index Per Article: 2.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/25/2022]
Affiliation(s)
- Neda Madadian-Bozorg
- Department of Life Science Engineering, Faculty of New Science and Technology; University of Tehran; Tehran Iran
| | - Payam Zahedi
- Nano-Biopolymers Research Laboratory, School of Chemical Engineering, College of Engineering; University of Tehran; PO Box: 11155-4563 Tehran Iran
| | - Mohammad Shamsi
- Nano-Biopolymers Research Laboratory, School of Chemical Engineering, College of Engineering; University of Tehran; PO Box: 11155-4563 Tehran Iran
| | - Shahrokh Safarian
- Department of Cell and Molecular Biology, School of Biology, College of Science; University of Tehran; 1417614411 Tehran Iran
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15
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16
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Seoane Rivero R, Navarro R, Bilbao Solaguren P, Gondra Zubieta K, Cuevas JM, Marcos-Fernández A. Synthesis and characterization of photo-crosslinkable linear segmented polyurethanes based on coumarin. Eur Polym J 2017. [DOI: 10.1016/j.eurpolymj.2017.05.016] [Citation(s) in RCA: 11] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/16/2022]
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17
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Pellizzoni E, Tommasini M, Marangon E, Rizzolio F, Saito G, Benedetti F, Toffoli G, Resmini M, Berti F. Fluorescent molecularly imprinted nanogels for the detection of anticancer drugs in human plasma. Biosens Bioelectron 2016; 86:913-919. [DOI: 10.1016/j.bios.2016.07.087] [Citation(s) in RCA: 10] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/17/2016] [Revised: 07/13/2016] [Accepted: 07/25/2016] [Indexed: 10/21/2022]
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18
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Synthesis and characterization of a photo-crosslinkable polyurethane based on a coumarin-containing polycaprolactone diol. Eur Polym J 2016. [DOI: 10.1016/j.eurpolymj.2016.01.047] [Citation(s) in RCA: 24] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
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19
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Tailoring Confinement: Nano-Carrier Synthesis via Z-RAFT Star Polymerization. Polymers (Basel) 2015. [DOI: 10.3390/polym7040695] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/08/2023] Open
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20
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Stabilizing the Microphase Separation of Block Copolymers by Controlled Photo-crosslinking. MACROMOL CHEM PHYS 2014. [DOI: 10.1002/macp.201400214] [Citation(s) in RCA: 13] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/07/2022]
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21
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Kumar A, Ujjwal RR, Mittal A, Bansal A, Ojha U. Polyacryloyl hydrazide: an efficient, simple, and cost effective precursor to a range of functional materials through hydrazide based click reactions. ACS APPLIED MATERIALS & INTERFACES 2014; 6:1855-65. [PMID: 24397622 DOI: 10.1021/am404837f] [Citation(s) in RCA: 23] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/06/2023]
Abstract
Preparation and studies of ion exchangeable epoxy resins, stimuli responsive hydrogels, and polymer-dye conjugates have been accomplished through hydrazide based click reactions using polyacryloyl hydrazide (PAH) as the precursor. A convenient synthesis of PAH with quantitative functionality was achieved by treatment of polymethyl acrylate with hydrazine hydrate in the presence of tetra-n-butyl ammonium bromide. PAH was cured with bisphenol A diglycidyl ether (BADGE) at 60 °C to form transparent resins with superior mechanical properties (tensile strength = 2-40 MPa, Young's modulus = 3.3-1043 MPa, and ultimate elongation = 9-75%) compared to the conventional resins prepared using triethylene tetramine. The resins exhibited higher ion exchange capacities (1.2-6.3 mmol/g) compared to the commercial AHA ammonium-type (Tokuyama Co., Japan) membranes. An azo dye with aldehyde functionality was covalently attached to PAH through hydrazone linkage, and the dye labeled PAH exhibited colorimetric sensing ability for base and acids up to micromolar concentration. The swelling of the PAH based hydrogel varied in the range 4-450% depending on the pH and temperature of the medium. The hydrogels gradually released 30% of the original encapsulated dye in a period of 200 h. PAH-hydroxy naphthaldehyde conjugate released 75% of the original loading in ∼11 days at 37 °C and pH 5.0 through cleavage of the -CONHN═C- linkage. The study depicts the versatility of PAH as a precursor and inspires synthesis of a range of new materials based on PAH in the future.
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Affiliation(s)
- Anuj Kumar
- Department of Chemistry, Rajiv Gandhi Institute of Petroleum Technology , Raebareli Ratapur Chowk, UP-229316, India
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Gubskaya AV, Khan IJ, Valenzuela LM, Lisnyak YV, Kohn J. Investigating the Release of a Hydrophobic Peptide from Matrices of Biodegradable Polymers: An Integrated Method Approach. POLYMER 2013; 54:3806-3820. [PMID: 24039300 DOI: 10.1016/j.polymer.2013.05.038] [Citation(s) in RCA: 7] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/19/2022]
Abstract
The objectives of this work were: (1) to select suitable compositions of tyrosine-derived polycarbonates for controlled delivery of voclosporin, a potent drug candidate to treat ocular diseases, (2) to establish a structure-function relationship between key molecular characteristics of biodegradable polymer matrices and drug release kinetics, and (3) to identify factors contributing in the rate of drug release. For the first time, the experimental study of polymeric drug release was accompanied by a hierarchical sequence of three computational methods. First, suitable polymer compositions used in subsequent neural network modeling were determined by means of response surface methodology (RSM). Second, accurate artificial neural network (ANN) models were built to predict drug release profiles for fifteen polymers located outside the initial design space. Finally, thermodynamic properties and hydrogen-bonding patterns of model drug-polymer complexes were studied using molecular dynamics (MD) technique to elucidate a role of specific interactions in drug release mechanism. This research presents further development of methodological approaches to meet challenges in the design of polymeric drug delivery systems.
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Affiliation(s)
- Anna V Gubskaya
- New Jersey Center for Biomaterials, Rutgers, The State University of New Jersey, Piscataway, NJ 08854-8087, USA
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Photocrosslinkable Star Polymers via RAFT-Copolymerizations with N-Ethylacrylate-3,4-dimethylmaleimide. Polymers (Basel) 2013. [DOI: 10.3390/polym5020706] [Citation(s) in RCA: 10] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/16/2022] Open
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Fadida T, Lellouche JP. Poly-N-(4-benzoylphenyl)methacrylamide nanoparticles: preparation, characterization, and photoreactivity features. JOURNAL OF POLYMER RESEARCH 2012. [DOI: 10.1007/s10965-012-0023-2] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
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Simon YC, Weder C. Low-power photon upconversion through triplet–triplet annihilation in polymers. ACTA ACUST UNITED AC 2012. [DOI: 10.1039/c2jm33654e] [Citation(s) in RCA: 341] [Impact Index Per Article: 28.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/23/2022]
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Drug-Eluting Intraocular Lenses. MATERIALS 2011; 4:1927-1940. [PMID: 28824115 PMCID: PMC5448846 DOI: 10.3390/ma4111927] [Citation(s) in RCA: 37] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 10/06/2011] [Revised: 10/20/2011] [Accepted: 10/25/2011] [Indexed: 11/16/2022]
Abstract
Notable advances in materials science and in surgical techniques make the management of cataract by replacement of the opaque crystalline with an intraocular lens (IOL), one of the most cost-effective interventions in current healthcare. The usefulness and safety of IOLs can be enhanced if they are endowed with the ability to load and to sustain drug release in the implantation site. Drug-eluting IOLs can prevent infections and untoward reactions of eye tissues (which lead to opacification) and also can act as drug depots for treatment of several other ocular pathologies. Such a myriad of therapeutic possibilities has prompted the design of drug-IOL combination products. Several approaches are under study, namely combination of the IOL with an insert in a single device, soaking in drug solutions, impregnation using supercritical fluids, coating with drug/polymer layers, and covalent grafting of the drug. The advantages/limitations of each technique are discussed in the present review on selected examples. Although more in vivo data are required, the information already available proves the interest of some approaches in ocular therapeutics.
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Jin Q, Mitschang F, Agarwal S. Biocompatible Drug Delivery System for Photo-Triggered Controlled Release of 5-Fluorouracil. Biomacromolecules 2011; 12:3684-91. [DOI: 10.1021/bm2009125] [Citation(s) in RCA: 109] [Impact Index Per Article: 8.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/21/2023]
Affiliation(s)
- Qiao Jin
- Fachbereich
Chemie, Philipps-Universität Marburg, Hans-Meerwein Strasse, D-35032, Marburg, Germany
| | - Fabian Mitschang
- Fachbereich
Chemie, Philipps-Universität Marburg, Hans-Meerwein Strasse, D-35032, Marburg, Germany
| | - Seema Agarwal
- Fachbereich
Chemie, Philipps-Universität Marburg, Hans-Meerwein Strasse, D-35032, Marburg, Germany
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Sinkel C, Schwarzer MC, Frenking G, Greiner A, Agarwal S. Polymer-bound 4-methylcoumarin/1-heptanoyl-5-fluorouracil photodimers: NMR elucidation of dimer structure. MAGNETIC RESONANCE IN CHEMISTRY : MRC 2011; 49:70-75. [PMID: 21254227 DOI: 10.1002/mrc.2711] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Received: 09/13/2010] [Revised: 11/10/2010] [Accepted: 11/10/2010] [Indexed: 05/30/2023]
Abstract
Heterodimers based on the polymer-bound chromophore 4-methylcoumarin and the prodrug 1-heptanoyl-5-fluorouracil, synthesized by photochemical [2 + 2]-cycloaddition are promising photoresponsive drug depots. Drug release experiments are one possibility to deliver proof of a successful reversible drug immobilization, whereas NMR spectroscopy is a potent tool for further structural characterization of these polymer-bound heterodimers. In case of the random copolymer poly(methyl methacrylate-co-7-(2'-methacryloyloxyethoxy)-4-methylcoumarin) three dimers have been identified of which the syn head-to-tail was the predominant one. In contrast, only the syn head-to-head dimer was formed in reasonable yield when the 4-methylcoumarin monofunctionalized pMMA was used as the base polymer. 1D and 2D NMR spectroscopic techniques combined with some theoretical calculations helped in successfully closing one major gap concerning polymer bound 4-methylcoumarin/1-heptanoyl-5-fluorouracil heterodimers that are of potential use in photoresponsive drug delivery devices.
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Affiliation(s)
- Carsten Sinkel
- Philipps-Universität Marburg, Fachbereich Chemie, Hans-Meerwein Strasse, D-35032 Marburg, Germany
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