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Carvalho AL, Vale AC, Sousa MP, Barbosa AM, Torrado E, Mano JF, Alves NM. Antibacterial bioadhesive layer-by-layer coatings for orthopedic applications. J Mater Chem B 2016; 4:5385-5393. [DOI: 10.1039/c6tb00841k] [Citation(s) in RCA: 41] [Impact Index Per Article: 5.1] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/12/2022]
Abstract
In this study, thin LbL films were produced by combining the adhesive properties of the hyaluronic acid–dopamine conjugate with the bioactivity and bactericidal properties of silver doped bioactive glass nanoparticles.
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Affiliation(s)
- A. L. Carvalho
- 3B's Research Group – Biomaterials
- Biodegradables and Biomimetics
- University of Minho
- Headquarters of the European Institute of Excellence on Tissue Engineering and Regenerative Medicine
- Guimarães
| | - A. C. Vale
- 3B's Research Group – Biomaterials
- Biodegradables and Biomimetics
- University of Minho
- Headquarters of the European Institute of Excellence on Tissue Engineering and Regenerative Medicine
- Guimarães
| | - M. P. Sousa
- 3B's Research Group – Biomaterials
- Biodegradables and Biomimetics
- University of Minho
- Headquarters of the European Institute of Excellence on Tissue Engineering and Regenerative Medicine
- Guimarães
| | - A. M. Barbosa
- ICVS/3B's PT Associate Laboratory
- Guimarães
- Portugal
- Life and Health Sciences Research Institute (ICVS)
- School of Health Sciences
| | - E. Torrado
- ICVS/3B's PT Associate Laboratory
- Guimarães
- Portugal
- Life and Health Sciences Research Institute (ICVS)
- School of Health Sciences
| | - J. F. Mano
- 3B's Research Group – Biomaterials
- Biodegradables and Biomimetics
- University of Minho
- Headquarters of the European Institute of Excellence on Tissue Engineering and Regenerative Medicine
- Guimarães
| | - N. M. Alves
- 3B's Research Group – Biomaterials
- Biodegradables and Biomimetics
- University of Minho
- Headquarters of the European Institute of Excellence on Tissue Engineering and Regenerative Medicine
- Guimarães
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52
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Zhang H, Zhao T, Newland B, Duffy P, Annaidh AN, O'Cearbhaill ED, Wang W. On-demand and negative-thermo-swelling tissue adhesive based on highly branched ambivalent PEG-catechol copolymers. J Mater Chem B 2015; 3:6420-6428. [PMID: 32262550 DOI: 10.1039/c5tb00949a] [Citation(s) in RCA: 59] [Impact Index Per Article: 6.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
A series of well-designed highly branched PEG-catechol based thermo-responsive copolymers were synthesized via a one-pot RAFT polymerization. A varying degree of photocrosslinkable (meth)acrylate moieties were incorporated within the 3D structure to allow on-demand photocuring (strong cohesion, unlike conventional PEG adhesives). At the same time, multitudes of free catechol groups inspired from adhesive proteins of marine mussels were also introduced in the hyperbranched structure, giving rise to adherence to skin and cardiac tissue. The resulting ambivalent PEG-catechol based copolymers were systematically studied to investigate the effects of polymer composition on tissue bioadhesive and swelling properties, comparing acrylates to methacrylates and PEG to 2-hydroxyethyl acrylamide (HEAA). It was proved that DOPA played a major role in the adhesion performance as it significantly enhanced the adhesion performances on varied substrates. The highly branched PEG-catechol copolymers demonstrate the great potential in the design of novel surgical glues, sealants or drug delivery vectors.
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Affiliation(s)
- Hong Zhang
- The Charles Institute of Dermatology, School of Medicine and Medical Science, University College Dublin, Dublin, Ireland.
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53
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Gao JK, Hou LA, Zhang GH, Gu P. Facile functionalized of SBA-15 via a biomimetic coating and its application in efficient removal of uranium ions from aqueous solution. JOURNAL OF HAZARDOUS MATERIALS 2015; 286:325-333. [PMID: 25590826 DOI: 10.1016/j.jhazmat.2014.12.061] [Citation(s) in RCA: 80] [Impact Index Per Article: 8.9] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 09/29/2014] [Revised: 12/22/2014] [Accepted: 12/30/2014] [Indexed: 06/04/2023]
Abstract
A novel dopamine-functionalized mesoporous silica (DMS), synthesized by grafting dopamine onto a mesoporous molecular sieve (SBA-15), was developed as a sorbent to extract U(VI) from aqueous solution. The method used to modify SBA-15 was simple, facile and cost-effective. The DMS was characterized by SEM, TEM, XRD and BET, showing that the material had an ordered mesoporous structure and a large surface area. The effect of contact time, pH, ionic strength, temperature, and solid-liquid ratio on the sorption process was investigated. It was demonstrated that the adsorption of U(VI) by DMS was fast and that it can be described by the pseudo-second order-equation where the equilibrium time was 20 min. Additionally, the adsorption isotherm data were fitted well by the Langmuir model with the maximum adsorption capacity of DMS of 196 mg/g at pH 6.0. Furthermore, the influence of the K(+) and Na(+) concentrations and solid-to-liquid ratio on the sorption was very weak, and the values of the thermodynamic parameters revealed that the sorption process was exothermic and spontaneous. All the results suggested that the DMS could be used as an excellent adsorbent to remove U(VI) from aqueous solution.
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Affiliation(s)
- Jun-Kai Gao
- School of Environmental Science and Engineering, Tianjin University, Tianjin 300072, China; School of Energy and Environmental Engineering, Hebei University of Technology, Tianjin 300401, China
| | - Li-An Hou
- School of Environmental Science and Engineering, Tianjin University, Tianjin 300072, China
| | - Guang-Hui Zhang
- School of Environmental Science and Engineering, Tianjin University, Tianjin 300072, China
| | - Ping Gu
- School of Environmental Science and Engineering, Tianjin University, Tianjin 300072, China.
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Zhou J, Defante AP, Lin F, Xu Y, Yu J, Gao Y, Childers E, Dhinojwala A, Becker ML. Adhesion Properties of Catechol-Based Biodegradable Amino Acid-Based Poly(ester urea) Copolymers Inspired from Mussel Proteins. Biomacromolecules 2014; 16:266-74. [DOI: 10.1021/bm501456g] [Citation(s) in RCA: 71] [Impact Index Per Article: 7.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/25/2022]
Affiliation(s)
- Jinjun Zhou
- Departments of †Polymer Science and ‡Biomedical Engineering, The University of Akron, Akron, Ohio 44325, United States
| | - Adrian P. Defante
- Departments of †Polymer Science and ‡Biomedical Engineering, The University of Akron, Akron, Ohio 44325, United States
| | - Fei Lin
- Departments of †Polymer Science and ‡Biomedical Engineering, The University of Akron, Akron, Ohio 44325, United States
| | - Ying Xu
- Departments of †Polymer Science and ‡Biomedical Engineering, The University of Akron, Akron, Ohio 44325, United States
| | - Jiayi Yu
- Departments of †Polymer Science and ‡Biomedical Engineering, The University of Akron, Akron, Ohio 44325, United States
| | - Yaohua Gao
- Departments of †Polymer Science and ‡Biomedical Engineering, The University of Akron, Akron, Ohio 44325, United States
| | - Erin Childers
- Departments of †Polymer Science and ‡Biomedical Engineering, The University of Akron, Akron, Ohio 44325, United States
| | - Ali Dhinojwala
- Departments of †Polymer Science and ‡Biomedical Engineering, The University of Akron, Akron, Ohio 44325, United States
| | - Matthew L. Becker
- Departments of †Polymer Science and ‡Biomedical Engineering, The University of Akron, Akron, Ohio 44325, United States
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56
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Sathaye S, Mbi A, Sonmez C, Chen Y, Blair DL, Schneider JP, Pochan DJ. Rheology of peptide- and protein-based physical hydrogels: Are everyday measurements just scratching the surface? WILEY INTERDISCIPLINARY REVIEWS-NANOMEDICINE AND NANOBIOTECHNOLOGY 2014; 7:34-68. [DOI: 10.1002/wnan.1299] [Citation(s) in RCA: 67] [Impact Index Per Article: 6.7] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Received: 02/27/2014] [Revised: 07/11/2014] [Accepted: 08/07/2014] [Indexed: 01/30/2023]
Affiliation(s)
- Sameer Sathaye
- Department of Materials Science and Engineering and Delaware Biotechnology Institute; University of Delaware; Newark DE USA
| | - Armstrong Mbi
- Department of Physics; Georgetown University; Washington DC USA
| | - Cem Sonmez
- Department of Chemistry; University of Delaware; Newark DE USA
- Chemical Biology Laboratory; National Cancer Institute, Frederick National Laboratory for Cancer Research; Frederick MD USA
| | - Yingchao Chen
- Department of Materials Science and Engineering and Delaware Biotechnology Institute; University of Delaware; Newark DE USA
| | - Daniel L. Blair
- Department of Physics; Georgetown University; Washington DC USA
| | - Joel P. Schneider
- Chemical Biology Laboratory; National Cancer Institute, Frederick National Laboratory for Cancer Research; Frederick MD USA
| | - Darrin J. Pochan
- Department of Materials Science and Engineering and Delaware Biotechnology Institute; University of Delaware; Newark DE USA
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57
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Oh DX, Shin S, Yoo HY, Lim C, Hwang DS. Surface forces apparatus and its applications for nanomechanics of underwater adhesives. KOREAN J CHEM ENG 2014. [DOI: 10.1007/s11814-014-0136-x] [Citation(s) in RCA: 8] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
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58
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Yu Y, Shapter JG, Popelka-Filcoff R, Bennett JW, Ellis AV. Copper removal using bio-inspired polydopamine coated natural zeolites. JOURNAL OF HAZARDOUS MATERIALS 2014; 273:174-182. [PMID: 24731937 DOI: 10.1016/j.jhazmat.2014.03.048] [Citation(s) in RCA: 75] [Impact Index Per Article: 7.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 11/19/2013] [Revised: 03/16/2014] [Accepted: 03/23/2014] [Indexed: 06/03/2023]
Abstract
Herein, for the first time, natural clinoptilolite-rich zeolite powders modified with a bio-inspired adhesive, polydopamine (PDA), have been systematically studied as an adsorbent for copper cations (Cu(II)) from aqueous solution. Fourier transform infrared (FTIR) spectroscopy, X-ray photoelectron spectroscopy (XPS) and thermogravimetric analysis (TGA) revealed successful grafting of PDA onto the zeolite surface. The effects of pH (2-5.5), PDA treatment time (3-24h), contact time (0 to 24h) and initial Cu(II) ion concentrations (1 to 500mgdm(-3)) on the adsorption of Cu(II) ions were studied using atomic absorption spectroscopy (AAS) and neutron activation analysis (NAA). The adsorption behavior was fitted to a Langmuir isotherm and shown to follow a pseudo-second-order reaction model. The maximum adsorption capacities of Cu(II) were shown to be 14.93mgg(-1) for pristine natural zeolite and 28.58mgg(-1) for PDA treated zeolite powders. This impressive 91.4% increase in Cu(II) ion adsorption capacity is attributed to the chelating ability of the PDA on the zeolite surface. Furthermore studies of recyclability using NAA showed that over 50% of the adsorbed copper could be removed in mild concentrations (0.01M or 0.1M) of either acid or base.
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Affiliation(s)
- Yang Yu
- Flinders Centre for Nanoscale Science & Technology, School of Chemical and Physical Sciences, Flinders University, Sturt Road, Bedford Park, Adelaide 5042, SA, Australia
| | - Joseph G Shapter
- Flinders Centre for Nanoscale Science & Technology, School of Chemical and Physical Sciences, Flinders University, Sturt Road, Bedford Park, Adelaide 5042, SA, Australia
| | - Rachel Popelka-Filcoff
- School of Chemical and Physical Sciences, Flinders University, Sturt Road, Bedford Park, Adelaide 5042, SA, Australia
| | - John W Bennett
- Centre for Nuclear Applications, Australian Nuclear Science and Technology Organisation, Lucas Heights 2234, NSW, Australia
| | - Amanda V Ellis
- Flinders Centre for Nanoscale Science & Technology, School of Chemical and Physical Sciences, Flinders University, Sturt Road, Bedford Park, Adelaide 5042, SA, Australia.
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59
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60
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Chan Choi Y, Choi JS, Jung YJ, Cho YW. Human gelatin tissue-adhesive hydrogels prepared by enzyme-mediated biosynthesis of DOPA and Fe3+ion crosslinking. J Mater Chem B 2014; 2:201-209. [DOI: 10.1039/c3tb20696c] [Citation(s) in RCA: 120] [Impact Index Per Article: 12.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/21/2022]
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61
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Mi Y, Wang J, Yang Z, Wang Z, Wang H, Yang S. A simple one-step solution deposition process for constructing high-performance amorphous zirconium oxide thin film. RSC Adv 2014. [DOI: 10.1039/c3ra46169f] [Citation(s) in RCA: 27] [Impact Index Per Article: 2.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022] Open
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62
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Lai So VL, He L, Xin JH. Bio-inspired colouration on various textile materials using a novel catechol colorant. RSC Adv 2014. [DOI: 10.1039/c4ra06004k] [Citation(s) in RCA: 10] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022] Open
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63
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Nata IF, Wu TM, Chen JK, Lee CK. A chitin nanofibril reinforced multifunctional monolith poly(vinyl alcohol) cryogel. J Mater Chem B 2014; 2:4108-4113. [DOI: 10.1039/c4tb00175c] [Citation(s) in RCA: 17] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
The antioxidant and antimicrobial functionalization of a chitin nanofibril (CNF) reinforced poly(vinyl alcohol) cryogel prepared by immersing in an alkaline dopamine solution followed by reducing AgNO3 into Ag nanoparticles on the macroporous structure of a spongy cryogel.
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Affiliation(s)
- Iryanti Fatyasari Nata
- Chemical Engineering Study Program
- Lambung Mangkurat University
- Banjarbaru, Indonesia 70714
- Department of Chemical Engineering
- National Taiwan University of Science and Technology
| | - Tsai-Mao Wu
- Department of Chemical Engineering
- National Taiwan University of Science and Technology
- Taipei, Taiwan 106
| | - Jung-Kung Chen
- Department of Chemical Engineering
- National Taiwan University of Science and Technology
- Taipei, Taiwan 106
| | - Cheng-Kang Lee
- Department of Chemical Engineering
- National Taiwan University of Science and Technology
- Taipei, Taiwan 106
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64
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Accelerating the design of biomimetic materials by integrating RNA-seq with proteomics and materials science. Nat Biotechnol 2013; 31:908-15. [DOI: 10.1038/nbt.2671] [Citation(s) in RCA: 145] [Impact Index Per Article: 13.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/03/2013] [Accepted: 07/22/2013] [Indexed: 01/19/2023]
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65
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Xu T, Zhang L, Zhong Y, Mao Z. Fire retardancy and durability of poly(N-benzyloxycarbonyl-3,4-dihydroxyphenylalanine)-montmorillonite composite film coated polyimide fabric. J Appl Polym Sci 2013. [DOI: 10.1002/app.39608] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/07/2022]
Affiliation(s)
- Tong Xu
- Key Laboratory of Science & Technology of Eco-Textile (Ministry of Education); Donghua University, No. 2999, North Renmin Road; Songjiang District, Shanghai 201620 People's Republic of China
| | - Linping Zhang
- Key Laboratory of Science & Technology of Eco-Textile (Ministry of Education); Donghua University, No. 2999, North Renmin Road; Songjiang District, Shanghai 201620 People's Republic of China
| | - Yi Zhong
- Key Laboratory of Science & Technology of Eco-Textile (Ministry of Education); Donghua University, No. 2999, North Renmin Road; Songjiang District, Shanghai 201620 People's Republic of China
| | - Zhiping Mao
- Key Laboratory of Science & Technology of Eco-Textile (Ministry of Education); Donghua University, No. 2999, North Renmin Road; Songjiang District, Shanghai 201620 People's Republic of China
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66
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Álvarez-Paino M, Marcelo G, Muñoz-Bonilla A, Fernández-García M. Catecholic Chemistry To Obtain Recyclable and Reusable Hybrid Polymeric Particles as Catalytic Systems. Macromolecules 2013. [DOI: 10.1021/ma4003566] [Citation(s) in RCA: 18] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
Affiliation(s)
- Marta Álvarez-Paino
- Instituto de Ciencia y Tecnología de Polímeros (ICTP-CSIC), C/Juan de la Cierva 3, 28006-Madrid, Spain
| | - Gema Marcelo
- Instituto de Ciencia y Tecnología de Polímeros (ICTP-CSIC), C/Juan de la Cierva 3, 28006-Madrid, Spain
| | - Alexandra Muñoz-Bonilla
- Instituto de Ciencia y Tecnología de Polímeros (ICTP-CSIC), C/Juan de la Cierva 3, 28006-Madrid, Spain
| | - Marta Fernández-García
- Instituto de Ciencia y Tecnología de Polímeros (ICTP-CSIC), C/Juan de la Cierva 3, 28006-Madrid, Spain
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67
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Duan LJ, Liu Y, Kim J, Chung DJ. Bioinspired and biocompatible adhesive coatings using poly(acrylic acid)-grafted dopamine. J Appl Polym Sci 2013. [DOI: 10.1002/app.39133] [Citation(s) in RCA: 8] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/10/2022]
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68
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Arsenyev MV, Shurygina MP, Poddel’sky AI, Druzhkov NO, Chesnokov SA, Fukin GK, Cherkasov VK, Abakumov GA. New poly-o-quinonemethacrylate and its dioxygen-active antimony-containing polymer. JOURNAL OF POLYMER RESEARCH 2013. [DOI: 10.1007/s10965-013-0098-4] [Citation(s) in RCA: 18] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
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69
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Lundberg P, Lynd NA, Zhang Y, Zeng X, Krogstad DV, Paffen T, Malkoch M, Nyström AM, Hawker CJ. pH-triggered self-assembly of biocompatible histamine-functionalized triblock copolymers. SOFT MATTER 2013; 9:82-89. [PMID: 25866546 PMCID: PMC4389683 DOI: 10.1039/c2sm26996a] [Citation(s) in RCA: 45] [Impact Index Per Article: 4.1] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/30/2023]
Abstract
Histamine functionalized poly(allyl glycidyl ether)-b-poly(ethylene glycol)-b-poly(allyl glycidyl ether) (PAGE-PEO-PAGE) triblock copolymers represent a new class of physically cross-linked, pH-responsive hydrogels with significant potential for biomedical applications. These telechelic triblock copolymers exhibited abrupt and reversible hydrogelation above pH 7.0 due to a hudrophilic/hydrophobic transition of the histamine units to form a network of hydrophobic domains bridged by a hydrophilic PEO matrix. These hydrophobic domains displayed improved ordering upon increasing pH and self-assembled into a body centered cubic lattice at pH 8.0, while at lower concentrations formed well-defined micelles. Significantly, all materials were found to be non-toxic when evaluated on three different cell lines and suggests a range of medical and biomedical applications.
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Affiliation(s)
- Pontus Lundberg
- Materials Research Laboratory, University of California, Santa Barbara, CA 93106, USA
| | - Nathaniel A Lynd
- Materials Research Laboratory, University of California, Santa Barbara, CA 93106, USA
| | - Yuning Zhang
- Swedish Medical Nanoscience Center, Department of Neuroscience, Karolinska Institutet, Retzius väg 8, Stockholm SE-171 77, Sweden
| | - Xianghui Zeng
- Swedish Medical Nanoscience Center, Department of Neuroscience, Karolinska Institutet, Retzius väg 8, Stockholm SE-171 77, Sweden
| | - Daniel V Krogstad
- Materials Research Laboratory, University of California, Santa Barbara, CA 93106, USA
| | - Tim Paffen
- Materials Research Laboratory, University of California, Santa Barbara, CA 93106, USA
| | - Michael Malkoch
- Department of Fibre and Polymer Technology, KTH Royal Institute of Technology, School of Chemical Science and Engineering, Teknikringen 56-58, Stockholm SE-100 44, Sweden
| | - Andreas M Nyström
- Swedish Medical Nanoscience Center, Department of Neuroscience, Karolinska Institutet, Retzius väg 8, Stockholm SE-171 77, Sweden
| | - Craig J Hawker
- Materials Research Laboratory, University of California, Santa Barbara, CA 93106, USA ; Department of Chemistry and Biochemistry and Materials Department, University of California, Santa Barbara, CA 93106, USA
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70
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71
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Kong CP, Peters EAJF, de With G, Zhang HX. Molecular dynamics simulation of a DOPA/ST monolayer on the Au(111) surface. Phys Chem Chem Phys 2013; 15:15426-33. [DOI: 10.1039/c3cp51973b] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
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72
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Bré LP, Zheng Y, Pêgo AP, Wang W. Taking tissue adhesives to the future: from traditional synthetic to new biomimetic approaches. Biomater Sci 2013; 1:239-253. [DOI: 10.1039/c2bm00121g] [Citation(s) in RCA: 84] [Impact Index Per Article: 7.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/26/2022]
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73
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Chung H, Grubbs RH. Rapidly Cross-Linkable DOPA Containing Terpolymer Adhesives and PEG-Based Cross-Linkers for Biomedical Applications. Macromolecules 2012. [DOI: 10.1021/ma3017986] [Citation(s) in RCA: 98] [Impact Index Per Article: 8.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
Affiliation(s)
- Hoyong Chung
- Division of Chemistry and Chemical Engineering, California Institute of Technology, 1200 E. California
Boulevard, Pasadena, California 91125, United States
| | - Robert H. Grubbs
- Division of Chemistry and Chemical Engineering, California Institute of Technology, 1200 E. California
Boulevard, Pasadena, California 91125, United States
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74
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Cheng C, Li S, Nie S, Zhao W, Yang H, Sun S, Zhao C. General and Biomimetic Approach to Biopolymer-Functionalized Graphene Oxide Nanosheet through Adhesive Dopamine. Biomacromolecules 2012; 13:4236-46. [DOI: 10.1021/bm3014999] [Citation(s) in RCA: 131] [Impact Index Per Article: 10.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/15/2023]
Affiliation(s)
- Chong Cheng
- College of
Polymer Science and
Engineering, State Key Laboratory of Polymer Materials Engineering, Sichuan University, Chengdu 610065, China
- National Engineering Research
Center for Biomaterials, Sichuan University, Chengdu 610064, China
| | - Shuang Li
- School of Aeronautics and Astronautics, Shanghai Jiaotong University, Shanghai 200240, China
| | - Shengqiang Nie
- College of
Polymer Science and
Engineering, State Key Laboratory of Polymer Materials Engineering, Sichuan University, Chengdu 610065, China
| | - Weifeng Zhao
- College of
Polymer Science and
Engineering, State Key Laboratory of Polymer Materials Engineering, Sichuan University, Chengdu 610065, China
| | - Hang Yang
- College of
Polymer Science and
Engineering, State Key Laboratory of Polymer Materials Engineering, Sichuan University, Chengdu 610065, China
| | - Shudong Sun
- College of
Polymer Science and
Engineering, State Key Laboratory of Polymer Materials Engineering, Sichuan University, Chengdu 610065, China
| | - Changsheng Zhao
- College of
Polymer Science and
Engineering, State Key Laboratory of Polymer Materials Engineering, Sichuan University, Chengdu 610065, China
- National Engineering Research
Center for Biomaterials, Sichuan University, Chengdu 610064, China
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75
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Cheng C, Li S, Zhao W, Wei Q, Nie S, Sun S, Zhao C. The hydrodynamic permeability and surface property of polyethersulfone ultrafiltration membranes with mussel-inspired polydopamine coatings. J Memb Sci 2012. [DOI: 10.1016/j.memsci.2012.06.045] [Citation(s) in RCA: 228] [Impact Index Per Article: 19.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
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76
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Licciardi M, Amato G, Cappelli A, Paolino M, Giuliani G, Belmonte B, Guarnotta C, Pitarresi G, Giammona G. Evaluation of thermoresponsive properties and biocompatibility of polybenzofulvene aggregates for leuprolide delivery. Int J Pharm 2012; 438:279-86. [PMID: 22989982 DOI: 10.1016/j.ijpharm.2012.09.023] [Citation(s) in RCA: 20] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/13/2012] [Revised: 09/02/2012] [Accepted: 09/08/2012] [Indexed: 01/24/2023]
Abstract
In this study, a polybenzofulvene derivative named poly-6-MOEG-9-BF3k, was evaluated as polymeric material for the production of injectable thermoresponsive nano-aggregates able to load low molecular weight peptidic drug, like the anticancer leuprolide. Thermoresponsive behavior of poly-6-MOEG-9-BF3k was studied in aqueous media by evaluating scattering intensity variations by means of DLS in function of temperature. Zeta potential measurements and SEM observations were also carried out. Moreover, critical aggregation temperature of the poly-6-MOEG-9-BF3k polymer was evaluated by pyrene fluorescence analysis. Then, the ability of prepared thermoresponsive aggregates to protect this model oligopeptide drug and regulate its release rate in function of external temperature was evaluated in vitro. Finally, biocompatibility of poly-6-MOEG-9-BF3k aggregates was tested in vitro on a healthy cell line (human bronchial epithelial cell; 16-HBE) and in vivo on rat animal model upon subcutaneous administration.
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Affiliation(s)
- Mariano Licciardi
- Department of Scienze e Tecnologie Molecolari e Biomolecolari, Laboratory of Biocompatible Polymers, University of Palermo, Via Archirafi, 32 90129 Palermo, Italy.
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Schricker SR, Palacio MLB, Bhushan B. Designing nanostructured block copolymer surfaces to control protein adhesion. PHILOSOPHICAL TRANSACTIONS. SERIES A, MATHEMATICAL, PHYSICAL, AND ENGINEERING SCIENCES 2012; 370:2348-2380. [PMID: 22509062 PMCID: PMC7398454 DOI: 10.1098/rsta.2011.0484] [Citation(s) in RCA: 8] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/31/2023]
Abstract
The profile and conformation of proteins that are adsorbed onto a polymeric biomaterial surface have a profound effect on its in vivo performance. Cells and tissue recognize the protein layer rather than directly interact with the surface. The chemistry and morphology of a polymer surface will govern the protein behaviour. So, by controlling the polymer surface, the biocompatibility can be regulated. Nanoscale surface features are known to affect the protein behaviour, and in this overview the nanostructure of self-assembled block copolymers will be harnessed to control protein behaviour. The nanostructure of a block copolymer can be controlled by manipulating the chemistry and arrangement of the blocks. Random, A-B and A-B-A block copolymers composed of methyl methacrylate copolymerized with either acrylic acid or 2-hydroxyethyl methacrylate will be explored. Using atomic force microscopy (AFM), the surface morphology of these block copolymers will be characterized. Further, AFM tips functionalized with proteins will measure the adhesion of that particular protein to polymer surfaces. In this manner, the influence of block copolymer morphology on protein adhesion can be measured. AFM tips functionalized with antibodies to fibronectin will determine how the surfaces will affect the conformation of fibronectin, an important parameter in evaluating surface biocompatibility.
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Affiliation(s)
- Scott R Schricker
- Restorative and Prosthetic Dentistry Section, College of Dentistry, Ohio State University, Columbus, 43210, USA.
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78
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Stepuk A, Halter JG, Schaetz A, Grass RN, Stark WJ. Mussel-inspired load bearing metal-polymer glues. Chem Commun (Camb) 2012; 48:6238-40. [PMID: 22588089 DOI: 10.1039/c2cc31996a] [Citation(s) in RCA: 33] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
A mussel-inspired synthetic adhesive based on dopamine containing methacrylate copolymers was developed to bond polymers to metal surfaces at an adhesion strength of up to 20 MPa for bulk samples.
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Affiliation(s)
- Alexander Stepuk
- Institute for Chemical and Bioengineering, Department of Chemistry and Applied Biosciences, ETH Zurich, 8093 Zurich, Switzerland
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79
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Falentin-Daudré C, Faure E, Svaldo-Lanero T, Farina F, Jérôme C, Van De Weerdt C, Martial J, Duwez AS, Detrembleur C. Antibacterial polyelectrolyte micelles for coating stainless steel. LANGMUIR : THE ACS JOURNAL OF SURFACES AND COLLOIDS 2012; 28:7233-7241. [PMID: 22506542 DOI: 10.1021/la3003965] [Citation(s) in RCA: 31] [Impact Index Per Article: 2.6] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/31/2023]
Abstract
In this study, we report on the original synthesis and characterization of novel antimicrobial coatings for stainless steel by alternating the deposition of aqueous solutions of positively charged polyelectrolyte micelles doped with silver-based nanoparticles with a polyanion. The micelles are formed by electrostatic interaction between two oppositely charged polymers: a polycation bearing 3,4-dihydroxyphenylalanine units (DOPA, a major component of natural adhesives) and a polyanion (poly(styrene sulfonate), PSS) without using any block copolymer. DOPA units are exploited for their well-known ability to anchor to stainless steel and to form and stabilize biocidal silver nanoparticles (Ag(0)). The chlorine counteranion of the polycation forms and stabilizes biocidal silver chloride nanoparticles (AgCl). We demonstrate that two layers of micelles (alternated by PSS) doped with silver particles are enough to impart to the surface strong antibacterial activity against gram-negative E. coli. Moreover, micelles that are reservoirs of biocidal Ag(+) can be easily reactivated after depletion. This novel water-based approach is convenient, simple, and attractive for industrial applications.
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Affiliation(s)
- Céline Falentin-Daudré
- Center for Education and Research on Macromolecules, Chemistry Department, University of Liège, Sart-Tilman B6a, 4000 Liège, Belgium
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80
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Shafiq Z, Cui J, Pastor-Pérez L, San Miguel V, Gropeanu RA, Serrano C, del Campo A. Bioinspired Underwater Bonding and Debonding on Demand. Angew Chem Int Ed Engl 2012. [DOI: 10.1002/ange.201108629] [Citation(s) in RCA: 55] [Impact Index Per Article: 4.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/20/2022]
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81
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Shafiq Z, Cui J, Pastor-Pérez L, San Miguel V, Gropeanu RA, Serrano C, del Campo A. Bioinspired Underwater Bonding and Debonding on Demand. Angew Chem Int Ed Engl 2012; 51:4332-5. [DOI: 10.1002/anie.201108629] [Citation(s) in RCA: 155] [Impact Index Per Article: 12.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/07/2011] [Revised: 02/28/2012] [Indexed: 12/22/2022]
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82
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Guvendiren M, Soshinski AA, Gambogi RJ, Yang S. Calcium carbonate composite hydrogel films: Particle packing and optical properties. POLYM ENG SCI 2012. [DOI: 10.1002/pen.23077] [Citation(s) in RCA: 8] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/16/2023]
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83
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Surface modification through bioinspired coating and self-assembly using polyelectrolyte and cell compatibility evaluation. Macromol Res 2012. [DOI: 10.1007/s13233-012-0091-5] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/14/2022]
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84
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Zhang F, Liu S, Zhang Y, Wei Y, Xu J. Underwater bonding strength of marine mussel-inspired polymers containing DOPA-like units with amino groups. RSC Adv 2012. [DOI: 10.1039/c2ra21312e] [Citation(s) in RCA: 18] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022] Open
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85
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Mi Y, Wang Z, Liu X, Yang S, Wang H, Ou J, Li Z, Wang J. A simple and feasible in-situ reduction route for preparation of graphene lubricant films applied to a variety of substrates. ACTA ACUST UNITED AC 2012. [DOI: 10.1039/c2jm16656a] [Citation(s) in RCA: 57] [Impact Index Per Article: 4.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/15/2023]
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86
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Oh YJ, Cho IH, Lee H, Park KJ, Lee H, Park SY. Bio-inspired catechol chemistry: a new way to develop a re-moldable and injectable coacervate hydrogel. Chem Commun (Camb) 2012; 48:11895-7. [DOI: 10.1039/c2cc36843a] [Citation(s) in RCA: 37] [Impact Index Per Article: 3.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/14/2023]
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87
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Choi YS, Kang DG, Lim S, Yang YJ, Kim CS, Cha HJ. Recombinant mussel adhesive protein fp-5 (MAP fp-5) as a bulk bioadhesive and surface coating material. BIOFOULING 2011; 27:729-737. [PMID: 21770718 DOI: 10.1080/08927014.2011.600830] [Citation(s) in RCA: 32] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/31/2023]
Abstract
Mussel adhesive proteins (MAPs) attach to all types of inorganic and organic surfaces, even in wet environments. MAP of type 5 (fp-5), in particular, has been considered as a key adhesive material. However, the low availability of fp-5 has hampered its biochemical characterization and practical applications. Here, soluble recombinant fp-5 is mass-produced in Escherichia coli. Tyrosinase-modified recombinant fp-5 showed ∼1.11 MPa adhesive shear strength, which is the first report of a bulk-scale adhesive force measurement for purified recombinant of natural MAP type. Surface coatings were also performed through simple dip-coating of various objects. In addition, complex coacervate using recombinant fp-5 and hyaluronic acid was prepared as an efficient adhesive formulation, which greatly improved the bulk adhesive strength. Collectively, it is expected that this work will enhance basic understanding of mussel adhesion and that recombinant fp-5 can be successfully used as a realistic bulk-scale bioadhesive and an efficient surface coating material.
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Affiliation(s)
- Yoo Seong Choi
- Department of Chemical Engineering, Pohang University of Science and Technology, Pohang, Korea
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88
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Du W, Zou H, Tian M, Zhang L, Wang W. Electrically conductive acrylonitrile-butadiene rubber elastomers prepared by dopamine-induced surface functionalization and metallization. POLYM ADVAN TECHNOL 2011. [DOI: 10.1002/pat.2006] [Citation(s) in RCA: 13] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/18/2022]
Affiliation(s)
- Weiwei Du
- Key Laboratory of Carbon Fiber and Functional Polymers, Ministry of Education; Beijing University of Chemical Technology; Beijing 100029 China
| | - Hua Zou
- Key Laboratory of Beijing City on Preparation and Processing of Novel Polymer Materials; Beijing University of Chemical Technology; Beijing 100029 China
| | - Ming Tian
- Key Laboratory of Beijing City on Preparation and Processing of Novel Polymer Materials; Beijing University of Chemical Technology; Beijing 100029 China
| | - Liqun Zhang
- Key Laboratory of Beijing City on Preparation and Processing of Novel Polymer Materials; Beijing University of Chemical Technology; Beijing 100029 China
| | - Wencai Wang
- Key Laboratory of Carbon Fiber and Functional Polymers, Ministry of Education; Beijing University of Chemical Technology; Beijing 100029 China
- Key Laboratory of Beijing City on Preparation and Processing of Novel Polymer Materials; Beijing University of Chemical Technology; Beijing 100029 China
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89
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White JD, Wilker JJ. Underwater Bonding with Charged Polymer Mimics of Marine Mussel Adhesive Proteins. Macromolecules 2011. [DOI: 10.1021/ma201044x] [Citation(s) in RCA: 165] [Impact Index Per Article: 12.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
Affiliation(s)
- James D. White
- Department of Chemistry and ‡School of Materials Engineering, Purdue University, West Lafayette, Indiana 47907, United States
| | - Jonathan J. Wilker
- Department of Chemistry and ‡School of Materials Engineering, Purdue University, West Lafayette, Indiana 47907, United States
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90
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Ou J, Wang J, Qiu Y, Liu L, Yang S. Mechanical property and corrosion resistance of zirconia/polydopamine nanocomposite multilayer films fabricated via a novel non-electrostatic layer-by-layer assembly technique. SURF INTERFACE ANAL 2011. [DOI: 10.1002/sia.3631] [Citation(s) in RCA: 31] [Impact Index Per Article: 2.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/11/2022]
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91
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Brodie M, Vollenweider L, Murphy JL, Xu F, Lyman A, Lew WD, Lee BP. Biomechanical properties of Achilles tendon repair augmented with a bioadhesive-coated scaffold. Biomed Mater 2011; 6:015014. [PMID: 21266745 DOI: 10.1088/1748-6041/6/1/015014] [Citation(s) in RCA: 52] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/22/2022]
Abstract
The Achilles tendon is the most frequently ruptured tendon. Both acute and chronic (neglected) tendon ruptures can dramatically affect a patient's quality of life, and require a prolonged period of recovery before return to pre-injury activity levels. This paper describes the use of an adhesive-coated biologic scaffold to augment primary suture repair of transected Achilles tendons. The adhesive portion consisted of a synthetic mimic of mussel adhesive proteins that can adhere to various surfaces in a wet environment, including biologic tissues. When combined with biologic scaffolds such as bovine pericardium or porcine dermal tissues, these adhesive constructs demonstrated lap shear adhesive strengths significantly greater than that of fibrin glue, while reaching up to 60% of the strength of a cyanoacrylate-based adhesive. These adhesive constructs were wrapped around transected cadaveric porcine Achilles tendons repaired with a combination of parallel and three-loop suture patterns. Tensile mechanical testing of the augmented repairs exhibited significantly higher stiffness (22-34%), failure load (24-44%), and energy to failure (27-63%) when compared to control tendons with suture repair alone. Potential clinical implications of this novel adhesive biomaterial are discussed.
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92
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Chung H, Glass P, Pothen JM, Sitti M, Washburn NR. Enhanced adhesion of dopamine methacrylamide elastomers via viscoelasticity tuning. Biomacromolecules 2010; 12:342-7. [PMID: 21182292 DOI: 10.1021/bm101076e] [Citation(s) in RCA: 68] [Impact Index Per Article: 4.9] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
Abstract
We present a study on the effects of cross-linking on the adhesive properties of bio-inspired 3,4-dihydroxyphenylalanine (DOPA). DOPA has a unique catechol moiety found in adhesive proteins in marine organisms, such as mussels and polychaete, which results in strong adhesion in aquatic conditions. Incorporation of this functional group in synthetic polymers provides the basis for pressure-sensitive adhesives for use in a broad range of environments. A series of cross-linked DOPA-containing polymers were prepared by adding divinyl cross-linking agent ethylene glycol dimethacrylate (EGDMA) to monomer mixtures of dopamine methacrylamide (DMA) and 2-methoxyethyl acrylate (MEA). Samples were prepared using a solvent-free microwave-assisted polymerization reaction and compared to a similar series of cross-linked MEA materials. Cross-linking with EGDMA tunes the viscoelastic properties of the adhesive material and has the advantage of not reacting with the catechol group that is responsible for the excellent adhesive performance of this material. Adhesion strength was measured by uniaxial indentation tests, which indicated that 0.001 mol % of EGDMA-cross-linked copolymer showed the highest work of adhesion in dry conditions, but non-cross-linked DMA was the highest in wet conditions. The results suggest that there is an optimal cross-linking degree that displays the highest adhesion by balancing viscous and elastic behaviors of the polymer but this appears to depend on the conditions. This concentration of cross-linker is well below the theoretical percolation threshold, and we propose that subtle changes in polymer viscoelastic properties can result in significant improvements in adhesion of DOPA-based materials. The properties of lightly cross-linked poly(DMA-co-MEA) were investigated by measurement of the frequency dependence of the storage modulus (G') and loss modulus (G''). The frequency-dependence of G' and magnitude of G'' showed gradual decreases with the fraction of EGDMA. Loosely cross-linked DMA copolymers, containing 0% and 0.001 mol % of EGDMA-cross-linked copolymers, displayed rheological behavior appropriate for pressure-sensitive adhesives characterized by a higher G' at high frequencies and lower G' at low frequencies. Our results indicate that dimethacrylate cross-linking of DMA copolymers can be used to enhance the adhesive properties of this unique material.
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Affiliation(s)
- Hoyong Chung
- Department of Chemistry, Carnegie Mellon University, Pittsburgh, Pennsylvania 15213, USA
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93
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Li L, Li Y, Luo X, Deng J, Yang W. Helical poly(N-propargylamide)s with functional catechol groups: Synthesis and adsorption of metal ions in aqueous solution. REACT FUNCT POLYM 2010. [DOI: 10.1016/j.reactfunctpolym.2010.09.006] [Citation(s) in RCA: 24] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/19/2022]
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94
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Murphy JL, Vollenweider L, Xu F, Lee BP. Adhesive performance of biomimetic adhesive-coated biologic scaffolds. Biomacromolecules 2010; 11:2976-84. [PMID: 20919699 DOI: 10.1021/bm1007794] [Citation(s) in RCA: 101] [Impact Index Per Article: 7.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
Abstract
Surgical repair of a discontinuity in traumatized or degenerated soft tissues is traditionally accomplished using sutures. A current trend is to reinforce this primary repair with surgical grafts, meshes, or patches secured with perforating mechanical devices (i.e., sutures, staples, or tacks). These fixation methods frequently lead to chronic pain and mesh detachment. We developed a series of biodegradable adhesive polymers that are synthetic mimics of mussel adhesive proteins (MAPs), composed of 3,4-dihydroxyphenylalanine (DOPA)-derivatives, polyethylene glycol (PEG), and polycaprolactone (PCL). These polymers can be cast into films, and their mechanical properties, extent of swelling, and degradation rate can be tailored through the composition of the polymers as well as blending with additives. When coated onto a biologic mesh used for hernia repair, these adhesive constructs demonstrated adhesive strengths significantly higher than fibrin glue. With further development, a precoated bioadhesive mesh may represent a new surgical option for soft tissue repair.
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Affiliation(s)
- John L Murphy
- Nerites Corporation, Madison, Wisconsin 53719, United States
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95
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Samyn P, Rühe J, Biesalski M. Polymerizable biomimetic vesicles with controlled local presentation of adhesive functional DOPA groups. LANGMUIR : THE ACS JOURNAL OF SURFACES AND COLLOIDS 2010; 26:8573-8581. [PMID: 20297782 DOI: 10.1021/la904629a] [Citation(s) in RCA: 12] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/29/2023]
Abstract
Inspired by strong adhesive properties of mussel footprint proteins, which are largely governed by the presence of dihydroxy-phenylalanine (DOPA) amino acid moieties, we present a novel approach for presenting DOPA groups in a very defined way in order to modulate the adhesion between artificial interfaces. To this end, linear peptide amphiphiles are synthesized with attached DOPA functional groups and a polymerizable diacetylenic tail. The obtained amphiphiles can be coassembled with matrix amphiphiles into vesicles, which can be subsequently stabilized through UV-light-induced solid-state polymerization. Depending on the molar ratio of matrix and adhesive amphiphiles, the vesicles self-assemble into spherical, fibrilar, or planar nanostructures. The adhesive properties of the surface-adsorbed vesicles are evaluated by drop casting them onto a planar solid substrate and performing macroscopic shear tests in contact with a similar substrate. The shear forces are investigated as a function of substrate chemistry, vesicle polymerization conditions, vesicle concentration, and number of adhesive DOPA groups in the interface. Substrate adhesion is enhanced by surface-confined vesicles and greatly depends on the presentation of DOPA groups in the adhesive interface, either as a mono- or multilayer conformation. Because the adhesive structures can be transferred onto substrates from low-viscosity aqueous solution, they may serve as interesting nanoscale gluing pads in future applications, where the high viscosity of polymer-based glues renders the controlled formation of nanoscale adhesion pads difficult.
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Affiliation(s)
- Pieter Samyn
- University of Freiburg, Department for Microsystems Engineering (IMTEK), Chemistry and Physics of Interfaces, D-79110 Freiburg, Germany
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96
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Majumder A, Sharma A, Ghatak A. A bioinspired wet/dry microfluidic adhesive for aqueous environments. LANGMUIR : THE ACS JOURNAL OF SURFACES AND COLLOIDS 2010; 26:521-525. [PMID: 20038181 DOI: 10.1021/la9021849] [Citation(s) in RCA: 8] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/28/2023]
Abstract
A pressure-sensitive, nonreacting and nonfouling adhesive which can perform well both in air and underwater is very desirable because of its potential applications in various settings such as biomedical, marine, and automobile. Taking a clue from nature that many natural adhesive pads have complex structures underneath the outer adhesive layer, we have prepared thin elastic adhesive films with subsurface microstructures using PDMS (poly(dimethylsiloxane)) and investigated their performance underwater. The presence of embedded structure enhances the energy of adhesion considerably both in air and underwater. Furthermore, filling the channels with liquid of suitable surface tension modifies the internal stress profile, resulting into significant enhancement in adhesive performance. As this increase in adhesion is mediated by mechanics and not by surface chemistry, the presence of water does not alter its performance much. For the same reason, this adhesion mechanism works with both hydrophobic and hydrophilic surfaces. The adhesive can be reused because of its elastic surface. Moreover, unlike many other present-day adhesives, its performance does not decrease with time.
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Affiliation(s)
- Abhijit Majumder
- Department of Chemical Engineering, Indian Institute of Technology, Kanpur 208016, India
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97
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Zoulalian V, Zürcher S, Tosatti S, Textor M, Monge S, Robin JJ. Self-assembly of poly(ethylene glycol)-poly(alkyl phosphonate) terpolymers on titanium oxide surfaces: synthesis, interface characterization, investigation of nonfouling properties, and long-term stability. LANGMUIR : THE ACS JOURNAL OF SURFACES AND COLLOIDS 2010; 26:74-82. [PMID: 19691273 DOI: 10.1021/la902110j] [Citation(s) in RCA: 51] [Impact Index Per Article: 3.6] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/28/2023]
Abstract
This contribution deals with the self-assembling of a terpolymer on titanium oxide (TiO(2)) surface. The polymer structure was obtained by polymerization of different methacrylates, i.e., alkyl-phosphonated, butyl and PEG methacrylate, in the presence of a chain transfer agent. The resulting PEG-poly(alkyl phosphonate) material, characterized mainly by SEC and NMR, self-organized at the interface of TiO(2). AR-XPS demonstrated the binding of phosphonate groups to TiO(2) substrate and the formation of a PEG-brush layer at the outermost part of the system. The stability of this terpolymer adlayer, after exposure to solutions of pH 2, 7.4, and 9 up to 3 weeks, was evaluated quantitatively by XPS and ellipsometry. We demonstrated an overall stability improvements of this coating against desorption in contact with aqueous solutions in comparison with reference self-assembly systems. Finally, the PEG-terpolymer adlayer proved to impart to TiO(2) substrate antifouling properties when exposed to full blood serum.
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Affiliation(s)
- Vincent Zoulalian
- Laboratory for Surface Science and Technology, Department of Materials, ETH Zurich, Wolfgang-Pauli-Strasse 10, CH-8093 Zurich, Switzerland
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98
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Ou J, Wang J, Zhang D, Zhang P, Liu S, Yan P, Liu B, Yang S. Fabrication and biocompatibility investigation of TiO(2) films on the polymer substrates obtained via a novel and versatile route. Colloids Surf B Biointerfaces 2009; 76:123-7. [PMID: 19914812 DOI: 10.1016/j.colsurfb.2009.10.024] [Citation(s) in RCA: 63] [Impact Index Per Article: 4.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/08/2009] [Revised: 10/13/2009] [Accepted: 10/14/2009] [Indexed: 10/20/2022]
Abstract
Titanium oxide (TiO(2)) films were successfully deposited onto the polymer substrates of polytetrafluoroethylene (PTFE), polyethylene (PE), and polyethylene terephthalate (PET), which were pre-modified with polydopamine coating (polydopamine and its coating are coded as PDA and PDAc, respectively), by a simple liquid phase deposition (LPD) process. The morphology and chemical state of the obtained TiO(2) films were characterized by field emission scanning electron microscope (FE-SEM) and X-ray photoelectron spectroscopy (XPS), respectively. Subsequently, the biocompatibility of the samples was investigated by 3-(4,5-dimethyldiazol-2-yl)-2,5-diphenyl tetrazolium bromide (MTT) colorimetric assay and acridine orange staining of MC-3T3 osteoblast cells, and the results demonstrated that the fabricated TiO(2) films could markedly improve the in vitro cytocompatibility. So, the presented route is anticipated to be a promising surface modification methodology to improve the practical outcome of the implanted materials for its versatility and validity.
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Affiliation(s)
- Junfei Ou
- State Key Laboratory of Solid Lubrication, Lanzhou Institute of Chemical Physics, Chinese Academy of Sciences, Lanzhou, China
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99
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Guvendiren M, Heiney PA, Yang S. Precipitated Calcium Carbonate Hybrid Hydrogels: Structural and Mechanical Properties. Macromolecules 2009. [DOI: 10.1021/ma9012576] [Citation(s) in RCA: 20] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
Affiliation(s)
- Murat Guvendiren
- Department of Materials Science and Engineering, 3231 Walnut Street, University of Pennsylvania, Philadelphia, Pennsylvania 19104
| | - Paul A. Heiney
- Department of Physics and Astronomy, 209 South 33rd Street, University of Pennsylvania, Philadelphia, Pennsylvania 19104
| | - Shu Yang
- Department of Materials Science and Engineering, 3231 Walnut Street, University of Pennsylvania, Philadelphia, Pennsylvania 19104
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100
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