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Neumann N, Thinius S, Abels G, Hartwig A, Koschek K, Boskamp L. Multifunctional hyperbranched prepolymers with tailored degree of methylation and methacrylation. POLYMER 2023. [DOI: 10.1016/j.polymer.2023.125886] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 04/03/2023]
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2
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Arkas M, Vardavoulias M, Kythreoti G, Giannakoudakis DA. Dendritic Polymers in Tissue Engineering: Contributions of PAMAM, PPI PEG and PEI to Injury Restoration and Bioactive Scaffold Evolution. Pharmaceutics 2023; 15:pharmaceutics15020524. [PMID: 36839847 PMCID: PMC9966633 DOI: 10.3390/pharmaceutics15020524] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/06/2022] [Revised: 01/26/2023] [Accepted: 01/30/2023] [Indexed: 02/09/2023] Open
Abstract
The capability of radially polymerized bio-dendrimers and hyperbranched polymers for medical applications is well established. Perhaps the most important implementations are those that involve interactions with the regenerative mechanisms of cells. In general, they are non-toxic or exhibit very low toxicity. Thus, they allow unhindered and, in many cases, faster cell proliferation, a property that renders them ideal materials for tissue engineering scaffolds. Their resemblance to proteins permits the synthesis of derivatives that mimic collagen and elastin or are capable of biomimetic hydroxy apatite production. Due to their distinctive architecture (core, internal branches, terminal groups), dendritic polymers may play many roles. The internal cavities may host cell differentiation genes and antimicrobial protection drugs. Suitable terminal groups may modify the surface chemistry of cells and modulate the external membrane charge promoting cell adhesion and tissue assembly. They may also induce polymer cross-linking for healing implementation in the eyes, skin, and internal organ wounds. The review highlights all the different categories of hard and soft tissues that may be remediated with their contribution. The reader will also be exposed to the incorporation of methods for establishment of biomaterials, functionalization strategies, and the synthetic paths for organizing assemblies from biocompatible building blocks and natural metabolites.
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Affiliation(s)
- Michael Arkas
- Institute of Nanoscience Nanotechnology, NCSR “Demokritos”, Patriarchou Gregoriou Street, 15310 Athens, Greece
- Correspondence: ; Tel.: +30-210-650-3669
| | | | - Georgia Kythreoti
- Institute of Nanoscience Nanotechnology, NCSR “Demokritos”, Patriarchou Gregoriou Street, 15310 Athens, Greece
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Poly(Glycerol Succinate) as Coating Material for 1393 Bioactive Glass Porous Scaffolds for Tissue Engineering Applications. Polymers (Basel) 2022; 14:polym14225028. [PMID: 36433155 PMCID: PMC9697483 DOI: 10.3390/polym14225028] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/15/2022] [Revised: 11/06/2022] [Accepted: 11/15/2022] [Indexed: 11/22/2022] Open
Abstract
BACKGROUND Aliphatic polyesters are widely used for biomedical, pharmaceutical and environmental applications due to their high biodegradability and cost-effective production. Recently, star and hyperbranched polyesters based on glycerol and ω-carboxy fatty diacids have gained considerable interest. Succinic acid and bio-based diacids similar to glycerol are regarded as safe materials according to the US Food and Drug Administration (FDA). Bioactive glass scaffolds utilized in bone tissue engineering are relatively brittle materials. However, their mechanical properties can be improved by using polymer coatings that can further control their degradation rate, tailor their biocompatibility and enhance their performance. The purpose of this study is to explore a new biopolyester poly(glycerol succinate) (PGSuc) reinforced with mesoporous bioactive nanoparticles (MSNs) as a novel coating material to produce hybrid scaffolds for bone tissue engineering. METHODS Bioactive glass scaffolds were coated with neat PGSuc, PGSuc loaded with dexamethasone sodium phosphate (DexSP) and PGSuc loaded with DexSP-laden MSNs. The physicochemical, mechanical and biological properties of the scaffolds were also evaluated. RESULTS Preliminary data are provided showing that polymer coatings with and without MSNs improved the physicochemical properties of the 1393 bioactive glass scaffolds and increased the ALP activity and alizarin red staining, suggesting osteogenic differentiation potential when cultured with adipose-derived mesenchymal stem cells. CONCLUSIONS PGSuc with incorporated MSNs coated onto 1393 bioactive glass scaffolds could be promising candidates in bone tissue engineering applications.
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Wang R, Zhang H, Jiang M, Wang Z, Zhou G. Dynamics-Driven Controlled Polymerization to Synthesize Fully Renewable Poly(ester–ether)s. Macromolecules 2021. [DOI: 10.1021/acs.macromol.1c01899] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/03/2023]
Affiliation(s)
- Rui Wang
- Division of Energy Materials (DNL 22), Dalian Institute of Chemical Physics of the Chinese Academy of Sciences, 457 Zhongshan Road, Dalian, 116023, Liaoning, China
| | - Houyu Zhang
- JiLin University, State Key Laboratory of Supramolecular Structure and Materials, Institute of Theoretical Chemistry, College of Chemistry, Jilin University, 2699 Qianjin Street, Changchun 130012, Jilin, China
| | - Min Jiang
- Division of Energy Materials (DNL 22), Dalian Institute of Chemical Physics of the Chinese Academy of Sciences, 457 Zhongshan Road, Dalian, 116023, Liaoning, China
| | - Zhipeng Wang
- Division of Energy Materials (DNL 22), Dalian Institute of Chemical Physics of the Chinese Academy of Sciences, 457 Zhongshan Road, Dalian, 116023, Liaoning, China
| | - Guangyuan Zhou
- Division of Energy Materials (DNL 22), Dalian Institute of Chemical Physics of the Chinese Academy of Sciences, 457 Zhongshan Road, Dalian, 116023, Liaoning, China
- Jiangsu Sino-Tech Polymerization New Materials Industry Technology Research Institute, 6 Qingyang Road, Changzhou 213125, Jiangsu, China
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Cook K, Naguib N, Price CE, Katharios S, Kirsch J, Cortes K, Hohl K, O'Toole GA, Grinstaff MW. Temporary In Situ Hydrogel Dressings for Colon Polypectomies. ACS Biomater Sci Eng 2021; 7:4362-4370. [PMID: 34342427 DOI: 10.1021/acsbiomaterials.1c00549] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
Abstract
Currently, no dressings are utilized after removal of polyps during a colonoscopy rendering these tissue sites susceptible to bleeding, sepsis, and perfusion. We report the design specifications, synthesis, and ex vivo evaluation of in situ polymerized hydrogels as colon wound dressings post polypectomy. The hydrogels exhibited varied properties to include moduli between 100 and 16 000 Pa, dissolution times between 4 h to 7 days or longer, swelling up to 200%, and adhesion to colon tissue from 0.1 to 0.4 N/cm2. The hydrogels displayed minimal cytotoxicity, prevented the migration/spread of bacteria, and exhibited rapid gelation, a requirement for application to the lumen of the colon via an endoscope. This work highlights the structure-property relationship of hydrogels prepared from N-hydroxysuccinimide functionalized PEG cross-linkers and hyperbranched polyethylenimines or 4-arm PEG-NH2 star polymers, and their potential as colon wound dressings.
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Affiliation(s)
- Katherine Cook
- Departments of Chemistry, Biomedical Engineering, and Medicine, Boston University, Boston, Massachusetts 02215, United States
| | - Nada Naguib
- Departments of Chemistry, Biomedical Engineering, and Medicine, Boston University, Boston, Massachusetts 02215, United States
| | - Courtney E Price
- Department of Microbiology and Immunology, Geisel School of Medicine at Dartmouth, Hanover, New Hampshire 03755, United States
| | - Stefan Katharios
- Department of Microbiology and Immunology, Geisel School of Medicine at Dartmouth, Hanover, New Hampshire 03755, United States
| | - Jack Kirsch
- Departments of Chemistry, Biomedical Engineering, and Medicine, Boston University, Boston, Massachusetts 02215, United States
| | - Kareen Cortes
- Departments of Chemistry, Biomedical Engineering, and Medicine, Boston University, Boston, Massachusetts 02215, United States
| | - Katherine Hohl
- Departments of Chemistry, Biomedical Engineering, and Medicine, Boston University, Boston, Massachusetts 02215, United States
| | - George A O'Toole
- Department of Microbiology and Immunology, Geisel School of Medicine at Dartmouth, Hanover, New Hampshire 03755, United States
| | - Mark W Grinstaff
- Departments of Chemistry, Biomedical Engineering, and Medicine, Boston University, Boston, Massachusetts 02215, United States
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Birajdar MS, Joo H, Koh WG, Park H. Natural bio-based monomers for biomedical applications: a review. Biomater Res 2021; 25:8. [PMID: 33795019 PMCID: PMC8015023 DOI: 10.1186/s40824-021-00208-8] [Citation(s) in RCA: 34] [Impact Index Per Article: 11.3] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/17/2021] [Accepted: 03/10/2021] [Indexed: 11/10/2022] Open
Abstract
In recent years, synthetic and semi-synthetic polymer materials have been widely used in various applications. Especially concerning biomedical applications, their biocompatibility, biodegradability, and non-toxicity have increased the interest of researchers to discover and develop new products for the well-being of humanity. Among the synthetic and semi-synthetic materials, the use of natural bio-based monomeric materials presents a possible novel avenue for the development of new biocompatible, biodegradable, and non-toxic products. The purpose of this article is to review the information on the role of natural bio-based monomers in biomedical applications. Increased eco-friendliness, biocompatibility, biodegradability, non-toxicity, and intrinsic biological activity are some of the attributes which make itaconic, succinic, citric, hyaluronic, and glutamic acids suitable potential materials for biomedical applications. Herein, we summarize the most recent advances in the field over the past ten years and specifically highlight new and interesting discoveries in biomedical applications. Natural origin acid-based bio-monomers for biomedical applications.
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Affiliation(s)
- Mallinath S Birajdar
- Department of Integrative Engineering, Chung-Ang University, Seoul, Republic of Korea
| | - Haejin Joo
- Department of Integrative Engineering, Chung-Ang University, Seoul, Republic of Korea
| | - Won-Gun Koh
- Department of Chemical and Biomolecular Engineering, Yonsei University, Seoul, Republic of Korea
| | - Hansoo Park
- Department of Integrative Engineering, Chung-Ang University, Seoul, Republic of Korea.
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7
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Katoh T, Ogawa Y, Ohta Y, Yokozawa T. Synthesis of polyester by means of polycondensation of diol ester and dicarboxylic acid ester through ester–ester exchange reaction. JOURNAL OF POLYMER SCIENCE 2021. [DOI: 10.1002/pol.20210032] [Citation(s) in RCA: 6] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/25/2022]
Affiliation(s)
- Takayoshi Katoh
- Department of Materials and Life Chemistry Kanagawa University Yokohama Japan
| | - Yukiko Ogawa
- Department of Materials and Life Chemistry Kanagawa University Yokohama Japan
| | - Yoshihiro Ohta
- Department of Materials and Life Chemistry Kanagawa University Yokohama Japan
| | - Tsutomu Yokozawa
- Department of Materials and Life Chemistry Kanagawa University Yokohama Japan
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8
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Ge L, Chen S. Recent Advances in Tissue Adhesives for Clinical Medicine. Polymers (Basel) 2020; 12:polym12040939. [PMID: 32325657 PMCID: PMC7240468 DOI: 10.3390/polym12040939] [Citation(s) in RCA: 68] [Impact Index Per Article: 17.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/28/2020] [Revised: 04/11/2020] [Accepted: 04/13/2020] [Indexed: 12/22/2022] Open
Abstract
Tissue adhesives have attracted more attention to the applications of non-invasive wound closure. The purpose of this review article is to summarize the recent progress of developing tissue adhesives, which may inspire researchers to develop more outstanding tissue adhesives. It begins with a brief introduction to the emerging potential use of tissue adhesives in the clinic. Next, several critical mechanisms for adhesion are discussed, including van der Waals forces, capillary forces, hydrogen bonding, static electric forces, and chemical bonds. This article further details the measurement methods of adhesion and highlights the different types of adhesive, including natural or biological, synthetic and semisynthetic, and biomimetic adhesives. Finally, this review article concludes with remarks on the challenges and future directions for design, fabrication, and application of tissue adhesives in the clinic. This review article has promising potential to provide novel creative design principles for the generation of future tissue adhesives.
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Affiliation(s)
- Liangpeng Ge
- Chongqing Academy of Animal Sciences and Key Laboratory of Pig Industry Sciences, Ministry of Agriculture, Chongqing 402460, China
- Correspondence: (L.G.); (S.C.)
| | - Shixuan Chen
- Department of Surgery-Transplant and Mary & Dick Holland Regenerative Medicine Program, University of Nebraska Medical Center, Omaha, NE 68105, USA
- Correspondence: (L.G.); (S.C.)
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Song J, Michas C, Chen CS, White AE, Grinstaff MW. From Simple to Architecturally Complex Hydrogel Scaffolds for Cell and Tissue Engineering Applications: Opportunities Presented by Two-Photon Polymerization. Adv Healthc Mater 2020; 9:e1901217. [PMID: 31746140 DOI: 10.1002/adhm.201901217] [Citation(s) in RCA: 40] [Impact Index Per Article: 10.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/31/2019] [Revised: 10/14/2019] [Indexed: 01/16/2023]
Abstract
Direct laser writing via two-photon polymerization (2PP) is an emerging micro- and nanofabrication technique to prepare predetermined and architecturally precise hydrogel scaffolds with high resolution and spatial complexity. As such, these scaffolds are increasingly being evaluated for cell and tissue engineering applications. This article first discusses the basic principles and photoresists employed in 2PP fabrication of hydrogels, followed by an in-depth introduction of various mechanical and biological characterization techniques used to assess the fabricated structures. The design requirements for cell and tissue related applications are then described to guide the engineering, physicochemical, and biological efforts. Three case studies in bone, cancer, and cardiac tissues are presented that illustrate the need for structured materials in the next generation of clinical applications. This paper concludes by summarizing the progress to date, identifying additional opportunities for 2PP hydrogel scaffolds, and discussing future directions for 2PP research.
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Affiliation(s)
- Jiaxi Song
- Department of Biomedical Engineering Boston University Boston MA 02215 USA
| | - Christos Michas
- Department of Biomedical Engineering Boston University Boston MA 02215 USA
| | | | - Alice E. White
- Department of Biomedical Engineering Boston University Boston MA 02215 USA
- Department of Mechanical Engineering Boston University Boston MA 02215 USA
| | - Mark W. Grinstaff
- Department of Biomedical Engineering Boston University Boston MA 02215 USA
- Department of Chemistry Boston University Boston MA 02215 USA
- Department of Medicine Boston University Boston MA 02215 USA
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Zamboulis A, Nakiou EA, Christodoulou E, Bikiaris DN, Kontonasaki E, Liverani L, Boccaccini AR. Polyglycerol Hyperbranched Polyesters: Synthesis, Properties and Pharmaceutical and Biomedical Applications. Int J Mol Sci 2019; 20:E6210. [PMID: 31835372 PMCID: PMC6940955 DOI: 10.3390/ijms20246210] [Citation(s) in RCA: 41] [Impact Index Per Article: 8.2] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/14/2019] [Revised: 12/02/2019] [Accepted: 12/04/2019] [Indexed: 12/13/2022] Open
Abstract
In a century when environmental pollution is a major issue, polymers issued from bio-based monomers have gained important interest, as they are expected to be environment-friendly, and biocompatible, with non-toxic degradation products. In parallel, hyperbranched polymers have emerged as an easily accessible alternative to dendrimers with numerous potential applications. Glycerol (Gly) is a natural, low-cost, trifunctional monomer, with a production expected to grow significantly, and thus an excellent candidate for the synthesis of hyperbranched polyesters for pharmaceutical and biomedical applications. In the present article, we review the synthesis, properties, and applications of glycerol polyesters of aliphatic dicarboxylic acids (from succinic to sebacic acids) as well as the copolymers of glycerol or hyperbranched polyglycerol with poly(lactic acid) and poly(ε-caprolactone). Emphasis was given to summarize the synthetic procedures (monomer molar ratio, used catalysts, temperatures, etc.,) and their effect on the molecular weight, solubility, and thermal and mechanical properties of the prepared hyperbranched polymers. Their applications in pharmaceutical technology as drug carries and in biomedical applications focusing on regenerative medicine are highlighted.
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Affiliation(s)
- Alexandra Zamboulis
- Laboratory of Polymer Chemistry & Technology, Department of Chemistry, Aristotle University of Thessaloniki, 54124 Thessaloniki, Greece; (A.Z.); (E.A.N.); (E.C.)
| | - Eirini A. Nakiou
- Laboratory of Polymer Chemistry & Technology, Department of Chemistry, Aristotle University of Thessaloniki, 54124 Thessaloniki, Greece; (A.Z.); (E.A.N.); (E.C.)
| | - Evi Christodoulou
- Laboratory of Polymer Chemistry & Technology, Department of Chemistry, Aristotle University of Thessaloniki, 54124 Thessaloniki, Greece; (A.Z.); (E.A.N.); (E.C.)
| | - Dimitrios N. Bikiaris
- Laboratory of Polymer Chemistry & Technology, Department of Chemistry, Aristotle University of Thessaloniki, 54124 Thessaloniki, Greece; (A.Z.); (E.A.N.); (E.C.)
| | - Eleana Kontonasaki
- Department of Dentistry, Aristotle University of Thessaloniki, 54124 Thessaloniki, Greece;
| | - Liliana Liverani
- Institute of Biomaterials, Department of Material Science and Engineering, University of Erlangen-Nuremberg, Cauerstr. 6, 91058 Erlangen, Germany;
| | - Aldo R. Boccaccini
- Institute of Biomaterials, Department of Material Science and Engineering, University of Erlangen-Nuremberg, Cauerstr. 6, 91058 Erlangen, Germany;
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11
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Zare Y, Dabbaghi A, Rahmani S. Increasing the hydrophilicity of star‐shaped amphiphilic co‐networks by using of PEG and dendritic s‐PCL cross‐linkers. POLYM ADVAN TECHNOL 2019. [DOI: 10.1002/pat.4711] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/14/2022]
Affiliation(s)
- Yaser Zare
- Laboratory of Polymer Synthesis, Department of Chemistry, Faculty of ScienceUniversity of Zanjan Zanjan Iran
| | - Alaleh Dabbaghi
- Laboratory of Polymer Synthesis, Department of Chemistry, Faculty of ScienceUniversity of Zanjan Zanjan Iran
| | - Sohrab Rahmani
- Laboratory of Polymer Synthesis, Department of Chemistry, Faculty of ScienceUniversity of Zanjan Zanjan Iran
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12
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Trujillo-de Santiago G, Sharifi R, Yue K, Sani ES, Kashaf SS, Alvarez MM, Leijten J, Khademhosseini A, Dana R, Annabi N. Ocular adhesives: Design, chemistry, crosslinking mechanisms, and applications. Biomaterials 2019; 197:345-367. [PMID: 30690421 PMCID: PMC6687460 DOI: 10.1016/j.biomaterials.2019.01.011] [Citation(s) in RCA: 59] [Impact Index Per Article: 11.8] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/15/2018] [Revised: 12/16/2018] [Accepted: 01/05/2019] [Indexed: 12/12/2022]
Abstract
Closure of ocular wounds after an accident or surgery is typically performed by suturing, which is associated with numerous potential complications, including suture breakage, inflammation, secondary neovascularization, erosion to the surface and secondary infection, and astigmatism; for example, more than half of post-corneal transplant infections are due to suture related complications. Tissue adhesives provide promising substitutes for sutures in ophthalmic surgery. Ocular adhesives are not only intended to address the shortcomings of sutures, but also designed to be easy to use, and can potentially minimize post-operative complications. Herein, recent progress in the design, synthesis, and application of ocular adhesives, along with their advantages, limitations, and potential are discussed. This review covers two main classes of ocular adhesives: (1) synthetic adhesives based on cyanoacrylates, polyethylene glycol (PEG), and other synthetic polymers, and (2) adhesives based on naturally derived polymers, such as proteins and polysaccharides. In addition, different technologies to cover and protect ocular wounds such as contact bandage lenses, contact lenses coupled with novel technologies, and decellularized corneas are discussed. Continued advances in this area can help improve both patient satisfaction and clinical outcomes.
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Affiliation(s)
- Grissel Trujillo-de Santiago
- Harvard-Massachusetts Institute of Technology Division of Health Sciences and Technology, Massachusetts Institute of Technology, Cambridge 02139, MA, USA; Biomaterials Innovation Research Center, Division of Biomedical Engineering, Department of Medicine, Brigham and Women's Hospital, Harvard Medical School, Boston 02139, MA, USA; Microsystems Technologies Laboratories, MIT, Cambridge, 02139, MA, USA; Centro de Biotecnología-FEMSA, Tecnológico de Monterrey, Monterrey, NL 64849, Mexico
| | - Roholah Sharifi
- Harvard-Massachusetts Institute of Technology Division of Health Sciences and Technology, Massachusetts Institute of Technology, Cambridge 02139, MA, USA; Biomaterials Innovation Research Center, Division of Biomedical Engineering, Department of Medicine, Brigham and Women's Hospital, Harvard Medical School, Boston 02139, MA, USA
| | - Kan Yue
- Harvard-Massachusetts Institute of Technology Division of Health Sciences and Technology, Massachusetts Institute of Technology, Cambridge 02139, MA, USA; Biomaterials Innovation Research Center, Division of Biomedical Engineering, Department of Medicine, Brigham and Women's Hospital, Harvard Medical School, Boston 02139, MA, USA
| | - Ehsan Shrizaei Sani
- Chemical and Biomolecular Engineering Department, University of California - Los Angeles, Los Angeles, CA 90095, USA
| | - Sara Saheb Kashaf
- Harvard-Massachusetts Institute of Technology Division of Health Sciences and Technology, Massachusetts Institute of Technology, Cambridge 02139, MA, USA; Biomaterials Innovation Research Center, Division of Biomedical Engineering, Department of Medicine, Brigham and Women's Hospital, Harvard Medical School, Boston 02139, MA, USA
| | - Mario Moisés Alvarez
- Harvard-Massachusetts Institute of Technology Division of Health Sciences and Technology, Massachusetts Institute of Technology, Cambridge 02139, MA, USA; Biomaterials Innovation Research Center, Division of Biomedical Engineering, Department of Medicine, Brigham and Women's Hospital, Harvard Medical School, Boston 02139, MA, USA; Microsystems Technologies Laboratories, MIT, Cambridge, 02139, MA, USA; Centro de Biotecnología-FEMSA, Tecnológico de Monterrey, Monterrey, NL 64849, Mexico
| | - Jeroen Leijten
- Harvard-Massachusetts Institute of Technology Division of Health Sciences and Technology, Massachusetts Institute of Technology, Cambridge 02139, MA, USA; Biomaterials Innovation Research Center, Division of Biomedical Engineering, Department of Medicine, Brigham and Women's Hospital, Harvard Medical School, Boston 02139, MA, USA; Department of Developmental BioEngineering, Faculty of Science and Technology, Technical Medicine, University of Twente, Drienerlolaan 5, 7522 NB, Enschede, The Netherlands
| | - Ali Khademhosseini
- Harvard-Massachusetts Institute of Technology Division of Health Sciences and Technology, Massachusetts Institute of Technology, Cambridge 02139, MA, USA; Biomaterials Innovation Research Center, Division of Biomedical Engineering, Department of Medicine, Brigham and Women's Hospital, Harvard Medical School, Boston 02139, MA, USA; Chemical and Biomolecular Engineering Department, University of California - Los Angeles, Los Angeles, CA 90095, USA; Department of Bioengineering, University of California - Los Angeles, Los Angeles, CA 90095, USA; Center for Minimally Invasive Therapeutics (C-MIT), California NanoSystems Institute (CNSI), University of California - Los Angeles, Los Angeles, CA 90095, USA; Department of Radiology, David Geffen School of Medicine, University of California - Los Angeles, 10833 Le Conte Ave, Los Angeles, CA 90095, USA
| | - Reza Dana
- Massachusetts Eye and Ear Infirmary and Schepens Eye Research Institute, Department of Ophthalmology, Harvard Medical School, Boston, MA 02114, USA
| | - Nasim Annabi
- Harvard-Massachusetts Institute of Technology Division of Health Sciences and Technology, Massachusetts Institute of Technology, Cambridge 02139, MA, USA; Biomaterials Innovation Research Center, Division of Biomedical Engineering, Department of Medicine, Brigham and Women's Hospital, Harvard Medical School, Boston 02139, MA, USA; Chemical and Biomolecular Engineering Department, University of California - Los Angeles, Los Angeles, CA 90095, USA; Center for Minimally Invasive Therapeutics (C-MIT), California NanoSystems Institute (CNSI), University of California - Los Angeles, Los Angeles, CA 90095, USA.
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Christadore L, Grinstaff MW, Schaus SE. Fluorescent Dendritic Micro-Hydrogels: Synthesis, Analysis and Use in Single-Cell Detection. Molecules 2018; 23:E936. [PMID: 29669998 PMCID: PMC6017717 DOI: 10.3390/molecules23040936] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/21/2018] [Revised: 04/10/2018] [Accepted: 04/11/2018] [Indexed: 01/19/2023] Open
Abstract
Hydrogels are of keen interest for a wide range of medical and biotechnological applications including as 3D substrate structures for the detection of proteins, nucleic acids, and cells. Hydrogel parameters such as polymer wt % and crosslink density are typically altered for a specific application; now, fluorescence can be incorporated into such criteria by specific macromonomer selection. Intrinsic fluorescence was observed at λmax 445 nm from hydrogels polymerized from lysine and aldehyde- terminated poly(ethylene glycol) macromonomers upon excitation with visible light. The hydrogel’s photochemical properties are consistent with formation of a nitrone functionality. Printed hydrogels of 150 μm were used to detect individual cell adherence via a decreased in fluorescence. The use of such intrinsically fluorescent hydrogels as a platform for cell sorting and detection expands the current repertoire of tools available.
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Affiliation(s)
- Lisa Christadore
- Department of Chemistry, Boston University, Boston, MA 02215, USA.
| | - Mark W Grinstaff
- Department of Chemistry, Boston University, Boston, MA 02215, USA.
- Departments of Biomedical Engineering and Medicine, Boston University, Boston, MA 02215, USA.
| | - Scott E Schaus
- Department of Chemistry, Boston University, Boston, MA 02215, USA.
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14
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Synthesis of Cationic Amphiphilic Surface-Block Polyester Dendrimers. J Inorg Organomet Polym Mater 2018. [DOI: 10.1007/s10904-017-0651-4] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/19/2022]
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15
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Luo J, Lin L, Liao N, Zhang K, Liu C, Sun Y. A method for systematically evaluating the hemostatic ability of hydrogels in vitro. Biomed Mater Eng 2017; 28:703-710. [DOI: 10.3233/bme-171704] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/15/2022]
Affiliation(s)
- Jingwan Luo
- Institute of Biomedical and Health Engineering, Shenzhen Institutes of Advanced Technology, Chinese Academy of Sciences, Shenzhen 518055, China. E-mail:
| | - Longxiang Lin
- Institute of Biomedical and Health Engineering, Shenzhen Institutes of Advanced Technology, Chinese Academy of Sciences, Shenzhen 518055, China. E-mail:
| | - Nina Liao
- Institute of Biomedical and Health Engineering, Shenzhen Institutes of Advanced Technology, Chinese Academy of Sciences, Shenzhen 518055, China. E-mail:
| | - Keke Zhang
- Institute of Biomedical and Health Engineering, Shenzhen Institutes of Advanced Technology, Chinese Academy of Sciences, Shenzhen 518055, China. E-mail:
| | - Chang Liu
- Institute of Biomedical and Health Engineering, Shenzhen Institutes of Advanced Technology, Chinese Academy of Sciences, Shenzhen 518055, China. E-mail:
| | - Yulong Sun
- Institute of Biomedical and Health Engineering, Shenzhen Institutes of Advanced Technology, Chinese Academy of Sciences, Shenzhen 518055, China. E-mail:
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Hodgson SM, McNelles SA, Abdullahu L, Marozas IA, Anseth KS, Adronov A. Reproducible Dendronized PEG Hydrogels via SPAAC Cross-Linking. Biomacromolecules 2017; 18:4054-4059. [PMID: 28968079 DOI: 10.1021/acs.biomac.7b01115] [Citation(s) in RCA: 29] [Impact Index Per Article: 4.1] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/18/2023]
Abstract
A common issue with hydrogel formulations is batch-to-batch irreproducibility originating from poorly defined polymer precursors. Here, we report the use of dendritic polymer end-groups to address this issue and maintain reproducibility between batches of poly(ethylene glycol) (PEG) hydrogels. Specifically, we synthesized two end-functionalized PEG chains: one with azide-terminated first- and second-generation dendrons and the other with strained cyclooctynes. The two complementary azide and alkyne polymers react via strain-promoted alkyne-azide cycloaddition (SPAAC) to produce hydrogels quickly in the absence of additional reagents or catalyst at low polymer concentrations. Hydrogels made with first-generation dendrons gelled in minutes and exhibited a small degree of swelling when incubated in PBS buffer at 37 °C, whereas hydrogels made from second-generation dendrons gelled in seconds with almost no swelling upon incubation at 37 °C. In both cases, the hydrogels proved reproducible, resulting in identical Young's modulus values from different batches. The hydrogels prepared with second-generation dendrons were seeded with human mesenchymal stem cells and showed high cell viability as well as cell spreading over a two-week time frame. These studies show that the SPAAC hydrogels are noncytotoxic and are capable of supporting cell growth.
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Affiliation(s)
- Sabrina M Hodgson
- Department of Chemistry and Chemical Biology, McMaster University , 1280 Main Street West, Hamilton, Ontario L8S 4M1, Canada
| | - Stuart A McNelles
- Department of Chemistry and Chemical Biology, McMaster University , 1280 Main Street West, Hamilton, Ontario L8S 4M1, Canada
| | - Leonora Abdullahu
- Department of Chemistry and Chemical Biology, McMaster University , 1280 Main Street West, Hamilton, Ontario L8S 4M1, Canada
| | - Ian A Marozas
- Department of Chemical and Biological Engineering and the BioFrontiers Institute, University of Colorado Boulder , Jennie Smoly Caruthers Biotechnology Building, 3415 Colorado Avenue, Boulder, Colorado 80303, United States
| | - Kristi S Anseth
- Department of Chemical and Biological Engineering and the BioFrontiers Institute, University of Colorado Boulder , Jennie Smoly Caruthers Biotechnology Building, 3415 Colorado Avenue, Boulder, Colorado 80303, United States
| | - Alex Adronov
- Department of Chemistry and Chemical Biology, McMaster University , 1280 Main Street West, Hamilton, Ontario L8S 4M1, Canada
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17
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Gok O, Erturk P, Sumer Bolu B, Gevrek TN, Sanyal R, Sanyal A. Dendrons and Multiarm Polymers with Thiol-Exchangeable Cores: A Reversible Conjugation Platform for Delivery. Biomacromolecules 2017. [PMID: 28648044 DOI: 10.1021/acs.biomac.7b00619] [Citation(s) in RCA: 12] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/25/2023]
Abstract
Disulfide exchange reaction has emerged as a powerful tool for reversible conjugation of proteins, peptides and thiol containing molecules to polymeric supports. In particular, the pyridyl disulfide group provides an efficient handle for the site-specific conjugation of therapeutic peptides and proteins bearing cysteine moieties. In this study, novel biodegradable dendritic platforms containing a pyridyl disulfide unit at their focal point were designed. Presence of hydroxyl groups at the periphery of these dendrons allows their elaboration to multivalent initiators that yield poly(ethylene glycol) based multiarm star polymers via controlled radical polymerization. The pyridyl disulfide unit at the core of these star polymers undergoes efficient reaction with thiol functional group containing molecules such as a hydrophobic dye, namely, Bodipy-SH, glutathione, and KLAK sequence containing peptide. While conjugation of the hydrophobic fluorescent dye to the PEG-based multiarm polymer renders it water-soluble, it can be cleaved off the construct through thiol-disulfide exchange in the presence of an external thiol such as dithiothreitol. The multiarm polymer was conjugated with a thiol group containing apoptotic peptide to increase its solubility and cellular transport. In vitro cytotoxicity and apoptosis assays demonstrated that the resultant peptide-polymer conjugate had almost five times more apoptotic potential primarily through triggering apoptosis by disrupting mitochondrial membranes of human breast cancer cell line (MDA-MB-231) compared to naked peptide. The novel dendritic platform disclosed here offers an attractive template that can be modified to multiarm polymeric constructs bearing a "tag and release" characteristic.
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Affiliation(s)
- Ozgul Gok
- Department of Chemistry, Bogazici University , Bebek 34342, Istanbul, Turkey
| | - Pelin Erturk
- Department of Chemistry, Bogazici University , Bebek 34342, Istanbul, Turkey
| | - Burcu Sumer Bolu
- Department of Chemistry, Bogazici University , Bebek 34342, Istanbul, Turkey
| | - Tugce Nihal Gevrek
- Department of Chemistry, Bogazici University , Bebek 34342, Istanbul, Turkey
| | - Rana Sanyal
- Department of Chemistry, Bogazici University , Bebek 34342, Istanbul, Turkey.,Center for Life Sciences and Technologies, Bogazici University , Istanbul, Turkey
| | - Amitav Sanyal
- Department of Chemistry, Bogazici University , Bebek 34342, Istanbul, Turkey.,Center for Life Sciences and Technologies, Bogazici University , Istanbul, Turkey
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18
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Xu L, Cooper RC, Wang J, Yeudall WA, Yang H. Synthesis and Application of Injectable Bioorthogonal Dendrimer Hydrogels for Local Drug Delivery. ACS Biomater Sci Eng 2017; 3:1641-1653. [PMID: 29147682 DOI: 10.1021/acsbiomaterials.7b00166] [Citation(s) in RCA: 24] [Impact Index Per Article: 3.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/06/2023]
Abstract
We developed novel dendrimer hydrogels (DH)s on the basis of bioorthogonal chemistry, in which polyamidoamine (PAMAM) dendrimer generation 4.0 (G4) functionalized with strained alkyne dibenzocyclooctyne (DBCO) via PEG spacer (Mn = 2,000 g/mol) underwent strain-promoted azide-alkyne cycloaddition (SPAAC) with polyethylene glycol bisazide (PEG-BA) (Mn= 20,000 g/mol) to generate a dendrimer-PEG cross-linked network. This platform offers a high degree of functionality and modularity. A wide range of structural parameters including dendrimer generation, degree of PEGylation, loading density of clickable DBCO groups, PEG-BA chain length as well as the ratio of clickable dendrimer to PEG-BA and their concentrations can be readily manipulated to tune chemical and physical properties of DHs. We used this platform to prepare an injectable liquid DH. This bioorthogonal DH exhibited high cytocompatibility and enabled sustained release of the anticancer drug 5-fluorouracil (5-FU). Following intratumoral injection, the DH/5-FU formulation significantly suppressed tumor growth and improved survival of HN12 tumor-bearing mice by promoting tumor cell death as well as by reducing tumor cell proliferation and angiogenesis.
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Affiliation(s)
- Leyuan Xu
- Department of Chemical and Life Science Engineering, Virginia Commonwealth University, 737 North 5 Street, Richmond, Virginia 23219, United States
| | - Remy C Cooper
- Department of Biomedical Engineering, 601 West Main Street, Virginia Commonwealth University, Richmond, Virginia 23284, United States
| | - Juan Wang
- Department of Chemical and Life Science Engineering, Virginia Commonwealth University, 737 North 5 Street, Richmond, Virginia 23219, United States
| | - W Andrew Yeudall
- Department of Oral Biology, Augusta University, 1120 15 Street, Augusta, Georgia 30912, United States.,Molecular Oncology and Biomarkers Program, Georgia Cancer Center, 1410 Laney Walker Blvd, Augusta University, Augusta, Georgia 30912, United States
| | - Hu Yang
- Department of Chemical and Life Science Engineering, Virginia Commonwealth University, 737 North 5 Street, Richmond, Virginia 23219, United States.,Department of Pharmaceutics, Virginia Commonwealth University, 410 North 12th Street, Richmond, Virginia 23298, United States.,Massey Cancer Center, Virginia Commonwealth University, 401 College Street, Richmond, Virginia 23298, United States
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19
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Konieczynska MD, Villa-Camacho JC, Ghobril C, Perez-Viloria M, Blessing WA, Nazarian A, Rodriguez EK, Grinstaff MW. A hydrogel sealant for the treatment of severe hepatic and aortic trauma with a dissolution feature for post-emergent care. MATERIALS HORIZONS 2017; 4:222-227. [PMID: 28868146 PMCID: PMC5578431 DOI: 10.1039/c6mh00378h] [Citation(s) in RCA: 20] [Impact Index Per Article: 2.9] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/07/2023]
Abstract
On-demand dissolvable hydrogel sealant reduces blood loss significantly in in vivo animal models of non-compressible hemorrhage.
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Affiliation(s)
- Marlena D Konieczynska
- Departments of Chemistry, Biomedical Engineering, and Medicine, Boston University, 590 Commonwealth Avenue, Boston, MA 02215, USA
| | - Juan C Villa-Camacho
- Center for Advanced Orthopaedic Studies, Beth Israel Deaconess Medical Center, 330 Brookline Avenue, R115, Boston, MA 02215, USA
| | - Cynthia Ghobril
- Departments of Chemistry, Biomedical Engineering, and Medicine, Boston University, 590 Commonwealth Avenue, Boston, MA 02215, USA
| | - Miguel Perez-Viloria
- Center for Advanced Orthopaedic Studies, Beth Israel Deaconess Medical Center, 330 Brookline Avenue, R115, Boston, MA 02215, USA
| | - William A Blessing
- Departments of Chemistry, Biomedical Engineering, and Medicine, Boston University, 590 Commonwealth Avenue, Boston, MA 02215, USA
| | - Ara Nazarian
- Center for Advanced Orthopaedic Studies, Beth Israel Deaconess Medical Center, 330 Brookline Avenue, R115, Boston, MA 02215, USA
| | - Edward K Rodriguez
- Center for Advanced Orthopaedic Studies, Beth Israel Deaconess Medical Center, 330 Brookline Avenue, R115, Boston, MA 02215, USA
| | - Mark W Grinstaff
- Departments of Chemistry, Biomedical Engineering, and Medicine, Boston University, 590 Commonwealth Avenue, Boston, MA 02215, USA
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20
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O’Rorke RD, Pokholenko O, Gao F, Cheng T, Shah A, Mogal V, Steele TWJ. Addressing Unmet Clinical Needs with UV Bioadhesives. Biomacromolecules 2017; 18:674-682. [DOI: 10.1021/acs.biomac.6b01743] [Citation(s) in RCA: 31] [Impact Index Per Article: 4.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/19/2022]
Affiliation(s)
- Richard D. O’Rorke
- Singapore University of Technology and Design, 8 Somapah Road, Singapore 487372
| | - Oleksandr Pokholenko
- School
of Materials Science and Engineering, Nanyang Technological University, Block N4.1, Nanyang Avenue, Singapore 639798
| | - Feng Gao
- School
of Materials Science and Engineering, Nanyang Technological University, Block N4.1, Nanyang Avenue, Singapore 639798
| | - Ting Cheng
- School
of Materials Science and Engineering, Nanyang Technological University, Block N4.1, Nanyang Avenue, Singapore 639798
| | - Ankur Shah
- School
of Materials Science and Engineering, Nanyang Technological University, Block N4.1, Nanyang Avenue, Singapore 639798
| | - Vishal Mogal
- School
of Materials Science and Engineering, Nanyang Technological University, Block N4.1, Nanyang Avenue, Singapore 639798
- Faculty
of Dentistry, National University of Singapore, 11 Lower Kent Ridge Road, Singapore 119083
| | - Terry W. J. Steele
- School
of Materials Science and Engineering, Nanyang Technological University, Block N4.1, Nanyang Avenue, Singapore 639798
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21
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Rodríguez Villanueva J, Navarro MG, Rodríguez Villanueva L. Dendrimers as a promising tool in ocular therapeutics: Latest advances and perspectives. Int J Pharm 2016; 511:359-366. [PMID: 27436708 DOI: 10.1016/j.ijpharm.2016.07.031] [Citation(s) in RCA: 33] [Impact Index Per Article: 4.1] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/07/2016] [Revised: 07/12/2016] [Accepted: 07/15/2016] [Indexed: 12/25/2022]
Abstract
Dendrimers have called the attention of scientists in the area of drug and gene delivery over the last two decades for their versatility, complexity and multibranching properties. Some strategies for optimizing drug pharmacokinetics and site-specific targeting using dendrimers have been proposed. Among them, those related to treating and managing ocular diseases are of special interest. Ocular therapies suffer from significant disadvantages, including frequent administration, poor penetration and/or rapid elimination. This review provides an overview of the recent and promising progress in the dendrimers field, focusing on both the anterior and posterior segments of the eye ocular targets, the use of dendrimers as a strategy for overcoming obstacles to the traditional treatment of ocular diseases and an outlook on future directions. Finally, a first approach to ocular safety with dendrimers is intended that accounts for the state-of-the-art science to date.
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Affiliation(s)
- Javier Rodríguez Villanueva
- Biomedical Sciences Department, Pharmacy and Pharmaceutical Technology Unit, Faculty of Pharmacy, Ctra. Madrid-Barcelona (Autovía A-II) Km. 33,600, 28805, Alcalá de Henares, Madrid, Spain; Faculty of Pharmacy, University of Alcalá, Alcalá de Henares, Madrid, Spain.
| | - Manuel Guzmán Navarro
- Biomedical Sciences Department, Pharmacy and Pharmaceutical Technology Unit, Faculty of Pharmacy, Ctra. Madrid-Barcelona (Autovía A-II) Km. 33,600, 28805, Alcalá de Henares, Madrid, Spain; Faculty of Pharmacy, University of Alcalá, Alcalá de Henares, Madrid, Spain
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22
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Konieczynska MD, Villa-Camacho JC, Ghobril C, Perez-Viloria M, Tevis KM, Blessing WA, Nazarian A, Rodriguez EK, Grinstaff MW. On-Demand Dissolution of a Dendritic Hydrogel-based Dressing for Second-Degree Burn Wounds through Thiol-Thioester Exchange Reaction. Angew Chem Int Ed Engl 2016. [DOI: 10.1002/ange.201604827] [Citation(s) in RCA: 17] [Impact Index Per Article: 2.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/16/2022]
Affiliation(s)
- Marlena D. Konieczynska
- Departments of Chemistry and Biomedical Engineering; Boston University; 590 Commonwealth Ave Boston MA 02215 USA
| | - Juan C. Villa-Camacho
- Center for Advanced Orthopaedic Studies; Beth Israel Deaconess Medical Center; 330 Brookline Ave Boston MA 02215 USA
| | - Cynthia Ghobril
- Departments of Chemistry and Biomedical Engineering; Boston University; 590 Commonwealth Ave Boston MA 02215 USA
| | - Miguel Perez-Viloria
- Center for Advanced Orthopaedic Studies; Beth Israel Deaconess Medical Center; 330 Brookline Ave Boston MA 02215 USA
| | - Kristie M. Tevis
- Departments of Chemistry and Biomedical Engineering; Boston University; 590 Commonwealth Ave Boston MA 02215 USA
| | - William A. Blessing
- Departments of Chemistry and Biomedical Engineering; Boston University; 590 Commonwealth Ave Boston MA 02215 USA
| | - Ara Nazarian
- Center for Advanced Orthopaedic Studies; Beth Israel Deaconess Medical Center; 330 Brookline Ave Boston MA 02215 USA
| | - Edward K. Rodriguez
- Center for Advanced Orthopaedic Studies; Beth Israel Deaconess Medical Center; 330 Brookline Ave Boston MA 02215 USA
| | - Mark W. Grinstaff
- Departments of Chemistry and Biomedical Engineering; Boston University; 590 Commonwealth Ave Boston MA 02215 USA
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23
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Konieczynska MD, Villa-Camacho JC, Ghobril C, Perez-Viloria M, Tevis KM, Blessing WA, Nazarian A, Rodriguez EK, Grinstaff MW. On-Demand Dissolution of a Dendritic Hydrogel-based Dressing for Second-Degree Burn Wounds through Thiol-Thioester Exchange Reaction. Angew Chem Int Ed Engl 2016; 55:9984-7. [PMID: 27410669 DOI: 10.1002/anie.201604827] [Citation(s) in RCA: 147] [Impact Index Per Article: 18.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/17/2016] [Revised: 06/23/2016] [Indexed: 12/20/2022]
Abstract
An adhesive yet easily removable burn wound dressing represents a breakthrough in second-degree burn wound care. Current second-degree burn wound dressings absorb wound exudate, reduce bacterial infections, and maintain a moist environment for healing, but are surgically or mechanically debrided from the wound, causing additional trauma to the newly formed tissues. We have developed an on-demand dissolvable dendritic thioester hydrogel burn dressing for second-degree burn care. The hydrogel is composed of a lysine-based dendron and a PEG-based crosslinker, which are synthesized in high yields. The hydrogel burn dressing covers the wound and acts as a barrier to bacterial infection in an in vivo second-degree burn wound model. A unique feature of the hydrogel is its capability to be dissolved on-demand, via a thiol-thioester exchange reaction, allowing for a facile burn dressing removal.
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Affiliation(s)
- Marlena D Konieczynska
- Departments of Chemistry and Biomedical Engineering, Boston University, 590 Commonwealth Ave, Boston, MA, 02215, USA
| | - Juan C Villa-Camacho
- Center for Advanced Orthopaedic Studies, Beth Israel Deaconess Medical Center, 330 Brookline Ave, Boston, MA, 02215, USA
| | - Cynthia Ghobril
- Departments of Chemistry and Biomedical Engineering, Boston University, 590 Commonwealth Ave, Boston, MA, 02215, USA
| | - Miguel Perez-Viloria
- Center for Advanced Orthopaedic Studies, Beth Israel Deaconess Medical Center, 330 Brookline Ave, Boston, MA, 02215, USA
| | - Kristie M Tevis
- Departments of Chemistry and Biomedical Engineering, Boston University, 590 Commonwealth Ave, Boston, MA, 02215, USA
| | - William A Blessing
- Departments of Chemistry and Biomedical Engineering, Boston University, 590 Commonwealth Ave, Boston, MA, 02215, USA
| | - Ara Nazarian
- Center for Advanced Orthopaedic Studies, Beth Israel Deaconess Medical Center, 330 Brookline Ave, Boston, MA, 02215, USA
| | - Edward K Rodriguez
- Center for Advanced Orthopaedic Studies, Beth Israel Deaconess Medical Center, 330 Brookline Ave, Boston, MA, 02215, USA
| | - Mark W Grinstaff
- Departments of Chemistry and Biomedical Engineering, Boston University, 590 Commonwealth Ave, Boston, MA, 02215, USA.
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24
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Tani Y, Takumi M, Moronaga S, Nagaki A, Yoshida JI. Flash cationic polymerization followed by bis-end-functionalization. A new approach to linear-dendritic hybrid polymers. Eur Polym J 2016. [DOI: 10.1016/j.eurpolymj.2016.02.021] [Citation(s) in RCA: 10] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/26/2022]
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25
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Kaga S, Arslan M, Sanyal R, Sanyal A. Dendrimers and Dendrons as Versatile Building Blocks for the Fabrication of Functional Hydrogels. Molecules 2016; 21:497. [PMID: 27092481 PMCID: PMC6273238 DOI: 10.3390/molecules21040497] [Citation(s) in RCA: 23] [Impact Index Per Article: 2.9] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/04/2016] [Revised: 04/09/2016] [Accepted: 04/11/2016] [Indexed: 11/17/2022] Open
Abstract
Hydrogels have emerged as a versatile class of polymeric materials with a wide range of applications in biomedical sciences. The judicious choice of hydrogel precursors allows one to introduce the necessary attributes to these materials that dictate their performance towards intended applications. Traditionally, hydrogels were fabricated using either polymerization of monomers or through crosslinking of polymers. In recent years, dendrimers and dendrons have been employed as well-defined building blocks in these materials. The multivalent and multifunctional nature of dendritic constructs offers advantages in either formulation or the physical and chemical properties of the obtained hydrogels. This review highlights various approaches utilized for the fabrication of hydrogels using well-defined dendrimers, dendrons and their polymeric conjugates. Examples from recent literature are chosen to illustrate the wide variety of hydrogels that have been designed using dendrimer- and dendron-based building blocks for applications, such as sensing, drug delivery and tissue engineering.
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Affiliation(s)
- Sadik Kaga
- Department of Chemistry, Bogazici University, Istanbul 34342, Turkey.
| | - Mehmet Arslan
- Department of Polymer Engineering, Yalova University, Yalova 77100, Turkey.
| | - Rana Sanyal
- Department of Chemistry, Bogazici University, Istanbul 34342, Turkey.
- Center for Life Sciences and Technologies, Bogazici University, Istanbul, 34342, Turkey.
| | - Amitav Sanyal
- Department of Chemistry, Bogazici University, Istanbul 34342, Turkey.
- Center for Life Sciences and Technologies, Bogazici University, Istanbul, 34342, Turkey.
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26
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Feng G, Djordjevic I, Mogal V, O'Rorke R, Pokholenko O, Steele TWJ. Elastic Light Tunable Tissue Adhesive Dendrimers. Macromol Biosci 2016; 16:1072-82. [DOI: 10.1002/mabi.201600033] [Citation(s) in RCA: 45] [Impact Index Per Article: 5.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/27/2016] [Revised: 03/07/2016] [Indexed: 11/07/2022]
Affiliation(s)
- Gao Feng
- School of Materials Science and Engineering (SME); Division of Materials Technology; Nanyang Technological University (NTU); Singapore 639798
| | - Ivan Djordjevic
- School of Materials Science and Engineering (SME); Division of Materials Technology; Nanyang Technological University (NTU); Singapore 639798
| | - Vishal Mogal
- School of Materials Science and Engineering (SME); Division of Materials Technology; Nanyang Technological University (NTU); Singapore 639798
| | - Richard O'Rorke
- School of Materials Science and Engineering (SME); Division of Materials Technology; Nanyang Technological University (NTU); Singapore 639798
| | - Oleksandr Pokholenko
- School of Materials Science and Engineering (SME); Division of Materials Technology; Nanyang Technological University (NTU); Singapore 639798
| | - Terry W. J. Steele
- School of Materials Science and Engineering (SME); Division of Materials Technology; Nanyang Technological University (NTU); Singapore 639798
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27
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Ghobril C, Rodriguez EK, Nazarian A, Grinstaff MW. Recent Advances in Dendritic Macromonomers for Hydrogel Formation and Their Medical Applications. Biomacromolecules 2016; 17:1235-52. [PMID: 26978246 DOI: 10.1021/acs.biomac.6b00004] [Citation(s) in RCA: 46] [Impact Index Per Article: 5.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
Abstract
Hydrogels represent one of the most important classes of biomaterials and are of interest for various medical applications including wound repair, tissue engineering, and drug release. Hydrogels possess tunable mechanical properties, biocompatibility, nontoxicity, and similarity to natural soft tissues. The need for hydrogels with specific properties, based on the design requirements of the in vitro, in vivo, or clinical application, motivates researchers to develop new synthetic approaches and cross-linking methodologies to form novel hydrogels with unique properties. The use of dendritic macromonomers represents one elegant strategy for the formation of hydrogels with specific properties. Specifically, the uniformity of dendrimers combined with the control of their size, architecture, density, and surface groups make them promising cross-linkers for hydrogel formation. Over the last two decades, a large variety of dendritic-based hydrogels are reported for their potential use in the clinic. This review describes the state of the art with these different dendritic hydrogel formulations including their design requirements, the synthetic routes, the measurement and determination of their properties, the evaluation of their in vitro and in vivo performances, and future perspectives.
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Affiliation(s)
- Cynthia Ghobril
- Departments of Biomedical Engineering, Chemistry and Medicine, Boston University , 590 Commonwealth Avenue, Boston, Massachusetts 02215, United States
| | - Edward K Rodriguez
- Carl J. Shapiro Department of Orthopaedic Surgery, Beth Israel Deaconess Medical Center, Harvard Medical School , Boston, Massachusetts, United States
| | - Ara Nazarian
- Center for Advanced Orthopaedic Studies, Carl J. Shapiro Department of Orthopaedic Surgery, Beth Israel Deaconess Medical Center, Harvard Medical School , Boston, Massachusetts, United States
| | - Mark W Grinstaff
- Departments of Biomedical Engineering, Chemistry and Medicine, Boston University , 590 Commonwealth Avenue, Boston, Massachusetts 02215, United States
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28
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Ricapito NG, Ghobril C, Zhang H, Grinstaff MW, Putnam D. Synthetic Biomaterials from Metabolically Derived Synthons. Chem Rev 2016; 116:2664-704. [PMID: 26821863 PMCID: PMC5810137 DOI: 10.1021/acs.chemrev.5b00465] [Citation(s) in RCA: 54] [Impact Index Per Article: 6.8] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/11/2022]
Abstract
The utility of metabolic synthons as the building blocks for new biomaterials is based on the early application and success of hydroxy acid based polyesters as degradable sutures and controlled drug delivery matrices. The sheer number of potential monomers derived from the metabolome (e.g., lactic acid, dihydroxyacetone, glycerol, fumarate) gives rise to almost limitless biomaterial structural possibilities, functionality, and performance characteristics, as well as opportunities for the synthesis of new polymers. This review describes recent advances in new chemistries, as well as the inventive use of traditional chemistries, toward the design and synthesis of new polymers. Specific polymeric biomaterials can be prepared for use in varied medical applications (e.g., drug delivery, tissue engineering, wound repair, etc.) through judicious selection of the monomer and backbone linkage.
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Affiliation(s)
- Nicole G. Ricapito
- School of Chemical and Biomolecular Engineering, Cornell University, Ithaca, New York 14853, United States
| | - Cynthia Ghobril
- Department of Chemistry, Boston University, Boston, Massachusetts 02215, United States
| | - Heng Zhang
- Department of Chemistry, Boston University, Boston, Massachusetts 02215, United States
| | - Mark W. Grinstaff
- Department of Chemistry, Boston University, Boston, Massachusetts 02215, United States
- Department of Biomedical Engineering, Boston University, Boston, Massachusetts 02215, United States
- Department of Medicine, Boston University School of Medicine, Boston, Massachusetts 02118, United States
| | - David Putnam
- School of Chemical and Biomolecular Engineering, Cornell University, Ithaca, New York 14853, United States
- Meinig School of Biomedical Engineering, Cornell University, Ithaca, New York 14853, United States
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29
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Liu F, Zhang Y, Pan X, Xu L, Xue Y, Zhang W. Doxorubicin-loaded redox-responsive amphiphilic dendritic porphyrin conjugates for chemotherapy and photodynamic therapy. RSC Adv 2016. [DOI: 10.1039/c6ra09356f] [Citation(s) in RCA: 11] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022] Open
Abstract
The reduction-responsive dendritic copolymer (TPP-S-S-G3) was developed to construct a drug carrier for encapsulation of hydrophobic drug (DOX) for the combination treatment between chemotherapy and PDT.
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Affiliation(s)
- Feng Liu
- Shanghai Key Laboratory of Functional Materials Chemistry
- College of Materials Science and Engineering
- East China University of Science and Technology
- Shanghai 200237
- P. R. China
| | - Yang Zhang
- Shanghai Key Laboratory of Functional Materials Chemistry
- College of Materials Science and Engineering
- East China University of Science and Technology
- Shanghai 200237
- P. R. China
| | - Xiuwei Pan
- Shanghai Key Laboratory of Functional Materials Chemistry
- College of Materials Science and Engineering
- East China University of Science and Technology
- Shanghai 200237
- P. R. China
| | - Lei Xu
- Shanghai Key Laboratory of Functional Materials Chemistry
- College of Materials Science and Engineering
- East China University of Science and Technology
- Shanghai 200237
- P. R. China
| | - Yudong Xue
- Shanghai Key Laboratory of Functional Materials Chemistry
- College of Materials Science and Engineering
- East China University of Science and Technology
- Shanghai 200237
- P. R. China
| | - Weian Zhang
- Shanghai Key Laboratory of Functional Materials Chemistry
- College of Materials Science and Engineering
- East China University of Science and Technology
- Shanghai 200237
- P. R. China
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30
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Kalomiraki M, Thermos K, Chaniotakis NA. Dendrimers as tunable vectors of drug delivery systems and biomedical and ocular applications. Int J Nanomedicine 2015; 11:1-12. [PMID: 26730187 PMCID: PMC4694674 DOI: 10.2147/ijn.s93069] [Citation(s) in RCA: 45] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/12/2022] Open
Abstract
Dendrimers are large polymeric structures with nanosize dimensions (1-10 nm) and unique physicochemical properties. The major advantage of dendrimers compared with linear polymers is their spherical-shaped structure. During synthesis, the size and shape of the dendrimer can be customized and controlled, so the finished macromolecule will have a specific "architecture" and terminal groups. These characteristics will determine its suitability for drug delivery, diagnostic imaging, and as a genetic material carrier. This review will focus initially on the unique properties of dendrimers and their use in biomedical applications, as antibacterial, antitumor, and diagnostic agents. Subsequently, emphasis will be given to their use in drug delivery for ocular diseases.
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Affiliation(s)
- Marina Kalomiraki
- Laboratory of Analytical Chemistry, Department of Chemistry, University of Crete Voutes, Heraklion, Greece
| | - Kyriaki Thermos
- Department of Pharmacology, School of Medicine, University of Crete Voutes, Heraklion, Greece
| | - Nikos A Chaniotakis
- Laboratory of Analytical Chemistry, Department of Chemistry, University of Crete Voutes, Heraklion, Greece
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31
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Kaga S, Gevrek TN, Sanyal A, Sanyal R. Synthesis and functionalization of dendron-polymer conjugate based hydrogels via sequential thiol-ene “click” reactions. ACTA ACUST UNITED AC 2015. [DOI: 10.1002/pola.27926] [Citation(s) in RCA: 11] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/06/2023]
Affiliation(s)
- Sadik Kaga
- Department of Chemistry; Bogazici University; Bebek 34342 Istanbul Turkey
| | - Tugce N. Gevrek
- Department of Chemistry; Bogazici University; Bebek 34342 Istanbul Turkey
| | - Amitav Sanyal
- Department of Chemistry; Bogazici University; Bebek 34342 Istanbul Turkey
- Bogazici University, Center for Life Sciences and Technologies; Istanbul Turkey
| | - Rana Sanyal
- Department of Chemistry; Bogazici University; Bebek 34342 Istanbul Turkey
- Bogazici University, Center for Life Sciences and Technologies; Istanbul Turkey
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32
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Liu Y, Lei W, Chen T, Jin L, Sun G, Yin B. Poly(aryl ether) Dendrons with Monopyrrolotetrathiafulvalene Unit-Based Organogels exhibiting Gel-Induced Enhanced Emission (GIEE). Chemistry 2015; 21:15235-45. [DOI: 10.1002/chem.201502044] [Citation(s) in RCA: 17] [Impact Index Per Article: 1.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/25/2015] [Indexed: 01/06/2023]
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33
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Nagaki A, Takumi M, Tani Y, Yoshida JI. Polymerization of vinyl ethers initiated by dendritic cations using flow microreactors. Tetrahedron 2015. [DOI: 10.1016/j.tet.2015.05.096] [Citation(s) in RCA: 19] [Impact Index Per Article: 2.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/16/2022]
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34
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Kaga S, Yapar S, Gecici EM, Sanyal R. Photopatternable “Clickable” Hydrogels: “Orthogonal” Control over Fabrication and Functionalization. Macromolecules 2015. [DOI: 10.1021/acs.macromol.5b01536] [Citation(s) in RCA: 21] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/13/2022]
Affiliation(s)
- Sadik Kaga
- Department
of Chemistry and ‡Center for Life Sciences and Technologies, Bogazici University, 34342 Istanbul, Turkey
| | - Serap Yapar
- Department
of Chemistry and ‡Center for Life Sciences and Technologies, Bogazici University, 34342 Istanbul, Turkey
| | - Ece Manavoglu Gecici
- Department
of Chemistry and ‡Center for Life Sciences and Technologies, Bogazici University, 34342 Istanbul, Turkey
| | - Rana Sanyal
- Department
of Chemistry and ‡Center for Life Sciences and Technologies, Bogazici University, 34342 Istanbul, Turkey
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35
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Sousa-Herves A, Sánchez Espinel C, Fahmi A, González-Fernández Á, Fernandez-Megia E. In situ nanofabrication of hybrid PEG-dendritic-inorganic nanoparticles and preliminary evaluation of their biocompatibility. NANOSCALE 2015; 7:3933-3940. [PMID: 25530028 DOI: 10.1039/c4nr06155a] [Citation(s) in RCA: 8] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/04/2023]
Abstract
An in situ template fabrication of inorganic nanoparticles using carboxylated PEG-dendritic block copolymers of the GATG family is described as a function of the dendritic block generation, the metal (Au, CdSe) and metal molar ratio. The biocompatibility of the generated nanoparticles analysed in terms of their aggregation in physiological media, cytotoxicity and uptake by macrophages relates to the PEG density of the surface of the hybrids.
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Affiliation(s)
- Ana Sousa-Herves
- Department of Organic Chemistry and Center for Research in Biological Chemistry and Molecular Materials (CIQUS), University of Santiago de Compostela, Jenaro de la Fuente s/n, 15782, Santiago de Compostela, Spain.
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36
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Ghobril C, Grinstaff MW. The chemistry and engineering of polymeric hydrogel adhesives for wound closure: a tutorial. Chem Soc Rev 2015; 44:1820-35. [DOI: 10.1039/c4cs00332b] [Citation(s) in RCA: 508] [Impact Index Per Article: 56.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/19/2022]
Abstract
Thistutorial reviewhighlights the key features and design requirements for the use of polymeric hydrogel adhesives in the clinic.
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Affiliation(s)
- C. Ghobril
- Departments of Biomedical Engineering and Chemistry
- Metcalf Center for Science and Engineering
- Boston University
- Boston
- USA
| | - M. W. Grinstaff
- Departments of Biomedical Engineering and Chemistry
- Metcalf Center for Science and Engineering
- Boston University
- Boston
- USA
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37
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Park EJ, Gevrek TN, Sanyal R, Sanyal A. Indispensable Platforms for Bioimmobilization: Maleimide-Based Thiol Reactive Hydrogels. Bioconjug Chem 2014; 25:2004-11. [DOI: 10.1021/bc500375r] [Citation(s) in RCA: 32] [Impact Index Per Article: 3.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/02/2023]
Affiliation(s)
- Eun Ju Park
- Department
of Chemistry and ‡Center for Life Sciences and Technologies, Bogazici University, Istanbul 34342, Turkey
| | - Tugce Nihal Gevrek
- Department
of Chemistry and ‡Center for Life Sciences and Technologies, Bogazici University, Istanbul 34342, Turkey
| | - Rana Sanyal
- Department
of Chemistry and ‡Center for Life Sciences and Technologies, Bogazici University, Istanbul 34342, Turkey
| | - Amitav Sanyal
- Department
of Chemistry and ‡Center for Life Sciences and Technologies, Bogazici University, Istanbul 34342, Turkey
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38
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Whitton G, Gillies ER. Functional aqueous assemblies of linear-dendron hybrids. ACTA ACUST UNITED AC 2014. [DOI: 10.1002/pola.27316] [Citation(s) in RCA: 36] [Impact Index Per Article: 3.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/04/2023]
Affiliation(s)
- Greg Whitton
- Department of Chemistry; The University of Western Ontario; 1151 Richmond Street London Ontario Canada N6A 5B7
| | - Elizabeth R. Gillies
- Department of Chemistry; The University of Western Ontario; 1151 Richmond Street London Ontario Canada N6A 5B7
- Department of Chemical and Biochemical Engineering; The University of Western Ontario; 1151 Richmond Street London Ontario Canada N6A 5B9
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39
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40
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Blasco E, Piñol M, Oriol L. Responsive linear-dendritic block copolymers. Macromol Rapid Commun 2014; 35:1090-115. [PMID: 24706548 DOI: 10.1002/marc.201400007] [Citation(s) in RCA: 46] [Impact Index Per Article: 4.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/03/2014] [Revised: 03/05/2014] [Indexed: 11/08/2022]
Abstract
The combination of dendritic and linear polymeric structures in the same macromolecule opens up new possibilities for the design of block copolymers and for applications of functional polymers that have self-assembly properties. There are three main strategies for the synthesis of linear-dendritic block copolymers (LDBCs) and, in particular, the emergence of click chemistry has made the coupling of preformed blocks one of the most efficient ways of obtaining libraries of LDBCs. In these materials, the periphery of the dendron can be precisely functionalised to obtain functional LDBCs with self-assembly properties of interest in different technological areas. The incorporation of stimuli-responsive moieties gives rise to smart materials that are generally processed as self-assemblies of amphiphilic LDBCs with a morphology that can be controlled by an external stimulus. Particular emphasis is placed on light-responsive LDBCs. Furthermore, a brief review of the biomedical or materials science applications of LDBCs is presented.
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Affiliation(s)
- Eva Blasco
- Dpt. Química Orgánica, Facultad de Ciencias - Instituto de Ciencia de Materiales de Aragón (ICMA), Universidad de Zaragoza-CSIC, Pedro Cerbuna 12, 50009, Zaragoza, Spain
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41
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Ghobril C, Charoen K, Rodriguez EK, Nazarian A, Grinstaff MW. A dendritic thioester hydrogel based on thiol-thioester exchange as a dissolvable sealant system for wound closure. Angew Chem Int Ed Engl 2013; 52:14070-4. [PMID: 24282150 PMCID: PMC4000691 DOI: 10.1002/anie.201308007] [Citation(s) in RCA: 129] [Impact Index Per Article: 11.7] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/11/2013] [Indexed: 11/09/2022]
Abstract
A dissolvable dendritic thioester hydrogel based on thiol-thioester exchange for wound closure is reported. The hydrogel sealant adheres strongly to tissues, closes an ex vivo vein puncture, and withstands high pressures placed on a wound. The hydrogel sealant can be completely washed off upon exposure to thiolates based on thiol-thioester exchange and allow gradual wound re-exposure during definitive surgical care.
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Affiliation(s)
- Cynthia Ghobril
- Departments of Biomedical Engineering and Chemistry, Boston University, 590 Commonwealth avenue, Boston, MA
| | - Kristie Charoen
- Departments of Biomedical Engineering and Chemistry, Boston University, 590 Commonwealth avenue, Boston, MA
| | | | - Ara Nazarian
- Beth Israël Deaconess Medical Center, 330 Brookline Avenue, Boston, MA
| | - Mark W. Grinstaff
- Departments of Biomedical Engineering and Chemistry, Boston University, 590 Commonwealth avenue, Boston, MA
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42
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Elkin I, Hildgen P. Convenient Synthesis of a Polyester-co
-Polyether Block for Assembling Biocompatible Hyperbranched Macromolecules. MACROMOL CHEM PHYS 2013. [DOI: 10.1002/macp.201300578] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/06/2022]
Affiliation(s)
- Igor Elkin
- Laboratory of Nanotechnology and Biomaterials, Faculty of Pharmacy, Université de Montréal; 2900 Edouard-Montpetit Montreal Quebec H3T 1J4 Canada
| | - Patrice Hildgen
- Laboratory of Nanotechnology and Biomaterials, Faculty of Pharmacy, Université de Montréal; 2900 Edouard-Montpetit Montreal Quebec H3T 1J4 Canada
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43
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Ghobril C, Charoen K, Rodriguez EK, Nazarian A, Grinstaff MW. A Dendritic Thioester Hydrogel Based on Thiol-Thioester Exchange as a Dissolvable Sealant System for Wound Closure. Angew Chem Int Ed Engl 2013. [DOI: 10.1002/ange.201308007] [Citation(s) in RCA: 12] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/14/2022]
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44
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Olofsson K, Andrén OCJ, Malkoch M. Recent advances on crosslinked dendritic networks. J Appl Polym Sci 2013. [DOI: 10.1002/app.39876] [Citation(s) in RCA: 11] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/19/2022]
Affiliation(s)
- Kristina Olofsson
- KTH Royal Institute of Technology, School of Chemical Science and Engineering; Department of Fibre and Polymer Technology; Teknikringen. 56-58, SE-100 44 Stockholm Sweden
| | - Oliver C. J. Andrén
- KTH Royal Institute of Technology, School of Chemical Science and Engineering; Department of Fibre and Polymer Technology; Teknikringen. 56-58, SE-100 44 Stockholm Sweden
| | - Michael Malkoch
- KTH Royal Institute of Technology, School of Chemical Science and Engineering; Department of Fibre and Polymer Technology; Teknikringen. 56-58, SE-100 44 Stockholm Sweden
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45
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Click synthesis of neutral, cationic, and zwitterionic poly(propargyl glycolide)-co-poly(ɛ-caprolactone)-based aliphatic polyesters as antifouling biomaterials. Colloids Surf B Biointerfaces 2013; 108:34-43. [DOI: 10.1016/j.colsurfb.2013.02.006] [Citation(s) in RCA: 9] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/23/2012] [Revised: 02/13/2013] [Accepted: 02/13/2013] [Indexed: 11/20/2022]
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46
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Tai H, Tochwin A, Wang W. Thermoresponsive hyperbranched polymers via In Situ
RAFT copolymerization of peg-based monomethacrylate and dimethacrylate monomers. ACTA ACUST UNITED AC 2013. [DOI: 10.1002/pola.26779] [Citation(s) in RCA: 15] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/01/2023]
Affiliation(s)
- Hongyun Tai
- School of Chemistry; Bangor University; Deiniol Road Bangor Gwynedd LL57 2UW United Kingdom
| | - Anna Tochwin
- School of Chemistry; Bangor University; Deiniol Road Bangor Gwynedd LL57 2UW United Kingdom
| | - Wenxin Wang
- Department of Mechanical Engineering and Biomedical Engineering; Network of Excellence for Functional Biomaterials; National University of Ireland; Galway Ireland
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47
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Zhang H, Patel A, Gaharwar AK, Mihaila SM, Iviglia G, Mukundan S, Bae H, Yang H, Khademhosseini A. Hyperbranched polyester hydrogels with controlled drug release and cell adhesion properties. Biomacromolecules 2013; 14:1299-310. [PMID: 23394067 PMCID: PMC3653976 DOI: 10.1021/bm301825q] [Citation(s) in RCA: 98] [Impact Index Per Article: 8.9] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/29/2023]
Abstract
Hyperbranched polyesters (HPE) have a high efficiency to encapsulate bioactive agents, including drugs, genes, and proteins, due to their globe-like nanostructure. However, the use of these highly branched polymeric systems for tissue engineering applications has not been broadly investigated. Here, we report synthesis and characterization of photocrosslinkable HPE hydrogels with sustained drug release characteristics for cellular therapies. These HPE can encapsulate hydrophobic drug molecules within the HPE cavities due to the presence of a hydrophobic inner structure that is otherwise difficult to achieve in conventional hydrogels. The functionalization of HPE with photocrosslinkable acrylate moieties renders the formation of hydrogels with a highly porous interconnected structure and mechanically tough network. The compressive modulus of HPE hydrogels was tunable by changing the crosslinking density. The feasibility of using these HPE networks for cellular therapies was investigated by evaluating cell adhesion, spreading, and proliferation on hydrogel surface. Highly crosslinked and mechanically stiff HPE hydrogels have higher cell adhesion, spreading, and proliferation compared to soft and complaint HPE hydrogels. Overall, we showed that hydrogels made from HPE could be used for biomedical applications that require spatial control of cell adhesion and controlled release of hydrophobic clues.
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Affiliation(s)
- Hongbin Zhang
- Center for Biomedical Engindeering, Department of Medicine, Brigham and Women's Hospital, Harvard Medical School, Cambridge, Massachusetts 02139, United States
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48
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Dong CM, Liu G. Linear–dendritic biodegradable block copolymers: from synthesis to application in bionanotechnology. Polym Chem 2013. [DOI: 10.1039/c2py20441j] [Citation(s) in RCA: 44] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
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49
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50
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Marsico F, Wagner M, Landfester K, Wurm FR. Unsaturated Polyphosphoesters via Acyclic Diene Metathesis Polymerization. Macromolecules 2012. [DOI: 10.1021/ma301508s] [Citation(s) in RCA: 77] [Impact Index Per Article: 6.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/24/2023]
Affiliation(s)
- Filippo Marsico
- Max Planck Institut für Polymerforschung, Ackermannweg
10, 55128 Mainz, Germany
| | - Manfred Wagner
- Max Planck Institut für Polymerforschung, Ackermannweg
10, 55128 Mainz, Germany
| | | | - Frederik R. Wurm
- Max Planck Institut für Polymerforschung, Ackermannweg
10, 55128 Mainz, Germany
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