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N. Kamble G, Chandra Joshi D, Syamakumari A. Design and synthesis of photocrosslinker and light blocker based on l-Amino acid polyester and their application in solvent-free resin formulation for DLP/SLA 3D printing. POLYMER 2023. [DOI: 10.1016/j.polymer.2023.125781] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/18/2023]
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2
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Politakos N. Block Copolymers in 3D/4D Printing: Advances and Applications as Biomaterials. Polymers (Basel) 2023; 15:polym15020322. [PMID: 36679203 PMCID: PMC9864278 DOI: 10.3390/polym15020322] [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: 11/29/2022] [Revised: 01/03/2023] [Accepted: 01/04/2023] [Indexed: 01/11/2023] Open
Abstract
3D printing is a manufacturing technique in constant evolution. Day by day, new materials and methods are discovered, making 3D printing continually develop. 3D printers are also evolving, giving us objects with better resolution, faster, and in mass production. One of the areas in 3D printing that has excellent potential is 4D printing. It is a technique involving materials that can react to an environmental stimulus (pH, heat, magnetism, humidity, electricity, and light), causing an alteration in their physical or chemical state and performing another function. Lately, 3D/4D printing has been increasingly used for fabricating materials aiming at drug delivery, scaffolds, bioinks, tissue engineering (soft and hard), synthetic organs, and even printed cells. The majority of the materials used in 3D printing are polymeric. These materials can be of natural origin or synthetic ones of different architectures and combinations. The use of block copolymers can combine the exemplary properties of both blocks to have better mechanics, processability, biocompatibility, and possible stimulus behavior via tunable structures. This review has gathered fundamental aspects of 3D/4D printing for biomaterials, and it shows the advances and applications of block copolymers in the field of biomaterials over the last years.
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Affiliation(s)
- Nikolaos Politakos
- POLYMAT, Applied Chemistry Department, Faculty of Chemistry, University of the Basque Country, UPV/EHU, Paseo Manuel de Lardizabal 3, 20018 Donostia-San Sebastián, Spain
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3
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Le X, Gao T, Wang L, Wei F, Chen C, Zhao Y. Self-Assembly of Short Amphiphilic Peptides and Their Biomedical Applications. Curr Pharm Des 2022; 28:3546-3562. [PMID: 36424793 DOI: 10.2174/1381612829666221124103526] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/30/2022] [Revised: 10/22/2022] [Accepted: 11/01/2022] [Indexed: 11/26/2022]
Abstract
A series of functional biomaterials with different sizes and morphologies can be constructed through self-assembly, among which amphiphilic peptide-based materials have received intense attention. One main possible reason is that the short amphiphilic peptides can facilitate the formation of versatile materials and promote their further applications in different fields. Another reason is that the simple structure of amphiphilic peptides can help establish the structure-function relationship. This review highlights the recent advances in the self-assembly of two typical peptide species, surfactant-like peptides (SLPs) and peptides amphiphiles (PAs). These peptides can self-assemble into diverse nanostructures. The formation of these different nanostructures resulted from the delicate balance of varied non-covalent interactions. This review embraced each non-covalent interaction and then listed the typical routes for regulating these non-covalent interactions, then realized the morphologies modulation of the self-assemblies. Finally, their applications in some biomedical fields, such as the stabilization of membrane proteins, templating for nanofabrication and biomineralization, acting as the antibacterial and antitumor agents, hemostasis, and synthesis of melanin have been summarized. Further advances in the self-assembly of SLPs and PAs may focus on the design of functional materials with targeted properties and exploring their improved properties.
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Affiliation(s)
- Xiaosong Le
- State Key Laboratory of Heavy Oil Processing and the Centre for Bioengineering and Biotechnology, China University of Petroleum (East China), 66 Changjiang West Road, Qingdao266580, China
| | - Tianwen Gao
- State Key Laboratory of Heavy Oil Processing and the Centre for Bioengineering and Biotechnology, China University of Petroleum (East China), 66 Changjiang West Road, Qingdao266580, China
| | - Li Wang
- State Key Laboratory of Heavy Oil Processing and the Centre for Bioengineering and Biotechnology, China University of Petroleum (East China), 66 Changjiang West Road, Qingdao266580, China
| | - Feng Wei
- State Key Laboratory of Heavy Oil Processing and the Centre for Bioengineering and Biotechnology, China University of Petroleum (East China), 66 Changjiang West Road, Qingdao266580, China
| | - Cuixia Chen
- State Key Laboratory of Heavy Oil Processing and the Centre for Bioengineering and Biotechnology, China University of Petroleum (East China), 66 Changjiang West Road, Qingdao266580, China
| | - Yurong Zhao
- State Key Laboratory of Heavy Oil Processing and the Centre for Bioengineering and Biotechnology, China University of Petroleum (East China), 66 Changjiang West Road, Qingdao266580, China
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4
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Wu B, Hanay SB, Kimmins SD, Cryan SA, Hermida Merino D, Heise A. Ion-Triggered Hydrogels Self-Assembled from Statistical Copolypeptides. ACS Macro Lett 2022; 11:323-328. [PMID: 35575374 PMCID: PMC8928472 DOI: 10.1021/acsmacrolett.1c00774] [Citation(s) in RCA: 2] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/06/2023]
Abstract
![]()
Statistical copolypeptides
comprising lysine and tyrosine with
unprecedented ion-induced gelation behavior are reported. Copolypeptides
are obtained by one-step N-carboxyanhydride (NCA)
ring-opening polymerization. The gelation mechanism is studied by
in situ SAXS analyses, in addition to optical spectroscopy and transmission
electron microscopy (TEM). It is found that the gelation of these
statistically polymerized polypeptides is due to the formation of
stable intermolecular β-sheet secondary structures induced by
the presence of salt ions as well as the aggregation of an α-helix
between the copolypeptides. This behavior is unique to the statistical
lysine/tyrosine copolypeptides and was not observed in any other amino
acid combination or arrangement. Furthermore, the diffusion and mechanical
properties of these hydrogels can be tuned through tailoring the polypeptide
chain length and ion strength.
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Affiliation(s)
- Bing Wu
- Department of Chemistry, RCSI University of Medicine and Health Sciences, Dublin 2, Ireland
- Dutch-Belgian Beamline (DUBBLE), ESRF - The European Synchrotron Radiation Facility, CS 40220, Grenoble 38043 Cedex 9, France
| | - Saltuk B. Hanay
- Department of Chemistry, RCSI University of Medicine and Health Sciences, Dublin 2, Ireland
| | - Scott D. Kimmins
- Instituto de Química, Pontificia Universidad Católica de Valparaíso, Avda. Universidad 330, Curauma, Placilla 2950, Valparaíso, Chile
| | - Sally-Ann Cryan
- School of Pharmacy and Biomolecular Sciences and Tissue Engineering Research Group, RCSI University of Medicine and Health Sciences, Dublin 2, Ireland
- Science Foundation Ireland (SFI) Centre for Research in Medical Devices (CURAM), RCSI, Dublin 2, Ireland
- AMBER, The SFI Advanced Materials and Bioengineering Research Centre, RCSI, Dublin 2, Ireland
| | - Daniel Hermida Merino
- Dutch-Belgian Beamline (DUBBLE), ESRF - The European Synchrotron Radiation Facility, CS 40220, Grenoble 38043 Cedex 9, France
| | - Andreas Heise
- Department of Chemistry, RCSI University of Medicine and Health Sciences, Dublin 2, Ireland
- Science Foundation Ireland (SFI) Centre for Research in Medical Devices (CURAM), RCSI, Dublin 2, Ireland
- AMBER, The SFI Advanced Materials and Bioengineering Research Centre, RCSI, Dublin 2, Ireland
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5
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Muralidharan A, McLeod RR, Bryant SJ. Hydrolytically degradable Poly (β-amino ester) resins with tunable degradation for 3D printing by projection micro-stereolithography. ADVANCED FUNCTIONAL MATERIALS 2022; 32:2106509. [PMID: 35813039 PMCID: PMC9268535 DOI: 10.1002/adfm.202106509] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/03/2023]
Abstract
Applications of 3D printing that range from temporary medical devices to environmentally responsible manufacturing would benefit from printable resins that yield polymers with controllable material properties and degradation behavior. Towards this goal, poly(β-amino ester) (PBAE)-diacrylate resins were investigated due to the wide range of available chemistries and tunable material properties. PBAE-diacrylate resins were synthesized from hydrophilic and hydrophobic chemistries and with varying electron densities on the ester bond to provide control over degradation. Hydrophilic PBAE-diacrylates led to degradation behaviors characteristic of bulk degradation while hydrophobic PBAE-diacrylates led to degradation behaviors dominated initially by surface degradation and then transitioned to bulk degradation. Depending on chemistry, the crosslinked PBAE-polymers exhibited a range of degradation times under accelerated conditions, from complete mass loss in 90 min to minimal mass loss at 45 days. Patterned features with 55 μm resolution were achieved across all resins, but their fidelity was dependent on PBAE-diacrylate molecular weight, reactivity, and printing parameters. In summary, simple chemical modifications in the PBAE-diacrylate resins coupled with projection microstereolithography enables high resolution 3D printed parts with similar architectures and initial properties, but widely different degradation rates and behaviors.
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Affiliation(s)
- Archish Muralidharan
- Materials Science and Engineering Program, University of Colorado, Boulder, USA, Boulder, CO 80309, USA
| | - Robert R. McLeod
- Department of Electrical, Computer and Energy Engineering, University of Colorado, Boulder, Boulder, CO 80309, USA; Materials Science and Engineering Program, University of Colorado, Boulder, USA, Boulder, CO 80309, USA
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6
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Murphy RD, Garcia RV, Heise A, Hawker CJ. Peptides as 3D printable feedstocks: Design strategies and emerging applications. Prog Polym Sci 2022. [DOI: 10.1016/j.progpolymsci.2021.101487] [Citation(s) in RCA: 2] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/03/2023]
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7
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Tinajero-Díaz E, Kimmins SD, García-Carvajal ZY, Martínez de Ilarduya A. Polypeptide-based materials prepared by ring-opening polymerisation of anionic-based α-amino acid N-carboxyanhydrides: A platform for delivery of bioactive-compounds. REACT FUNCT POLYM 2021. [DOI: 10.1016/j.reactfunctpolym.2021.105040] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/20/2022]
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8
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Firipis K, Nisbet DR, Franks SJ, Kapsa RMI, Pirogova E, Williams RJ, Quigley A. Enhancing Peptide Biomaterials for Biofabrication. Polymers (Basel) 2021; 13:polym13162590. [PMID: 34451130 PMCID: PMC8400132 DOI: 10.3390/polym13162590] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/30/2021] [Revised: 07/30/2021] [Accepted: 07/30/2021] [Indexed: 12/20/2022] Open
Abstract
Biofabrication using well-matched cell/materials systems provides unprecedented opportunities for dealing with human health issues where disease or injury overtake the body’s native regenerative abilities. Such opportunities can be enhanced through the development of biomaterials with cues that appropriately influence embedded cells into forming functional tissues and organs. In this context, biomaterials’ reliance on rigid biofabrication techniques needs to support the incorporation of a hierarchical mimicry of local and bulk biological cues that mimic the key functional components of native extracellular matrix. Advances in synthetic self-assembling peptide biomaterials promise to produce reproducible mimics of tissue-specific structures and may go some way in overcoming batch inconsistency issues of naturally sourced materials. Recent work in this area has demonstrated biofabrication with self-assembling peptide biomaterials with unique biofabrication technologies to support structural fidelity upon 3D patterning. The use of synthetic self-assembling peptide biomaterials is a growing field that has demonstrated applicability in dermal, intestinal, muscle, cancer and stem cell tissue engineering.
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Affiliation(s)
- Kate Firipis
- Biofab3D, Aikenhead Centre for Medical Discovery, St Vincent’s Hospital Melbourne, Fitzroy, VIC 3065, Australia; (K.F.); (R.M.I.K.); (E.P.)
- Biomedical and Electrical Engineering, School of Engineering, RMIT University, Melbourne, VIC 3000, Australia
| | - David R. Nisbet
- Laboratory of Advanced Biomaterials, The Australian National University, Acton, Canberra, ACT 2601, Australia; (D.R.N.); (S.J.F.)
- The Graeme Clark Institute, Faculty of Engineering and Information Technology, Melbourne, VIC 3000, Australia
- Faculty of Medicine, Dentistry and Health Services, The University of Melbourne, Melbourne, VIC 3000, Australia
| | - Stephanie J. Franks
- Laboratory of Advanced Biomaterials, The Australian National University, Acton, Canberra, ACT 2601, Australia; (D.R.N.); (S.J.F.)
| | - Robert M. I. Kapsa
- Biofab3D, Aikenhead Centre for Medical Discovery, St Vincent’s Hospital Melbourne, Fitzroy, VIC 3065, Australia; (K.F.); (R.M.I.K.); (E.P.)
- Biomedical and Electrical Engineering, School of Engineering, RMIT University, Melbourne, VIC 3000, Australia
- Department of Medicine, Melbourne University, St Vincent’s Hospital Melbourne, Fitzroy, VIC 3064, Australia
| | - Elena Pirogova
- Biofab3D, Aikenhead Centre for Medical Discovery, St Vincent’s Hospital Melbourne, Fitzroy, VIC 3065, Australia; (K.F.); (R.M.I.K.); (E.P.)
- Biomedical and Electrical Engineering, School of Engineering, RMIT University, Melbourne, VIC 3000, Australia
| | - Richard J. Williams
- Biofab3D, Aikenhead Centre for Medical Discovery, St Vincent’s Hospital Melbourne, Fitzroy, VIC 3065, Australia; (K.F.); (R.M.I.K.); (E.P.)
- Institute of Mental and Physical Health and Clinical Translation, School of Medicine, Deakin University, Waurn Ponds, VIC 3216, Australia
- Correspondence: (R.J.W.); (A.Q.)
| | - Anita Quigley
- Biofab3D, Aikenhead Centre for Medical Discovery, St Vincent’s Hospital Melbourne, Fitzroy, VIC 3065, Australia; (K.F.); (R.M.I.K.); (E.P.)
- Biomedical and Electrical Engineering, School of Engineering, RMIT University, Melbourne, VIC 3000, Australia
- Department of Medicine, Melbourne University, St Vincent’s Hospital Melbourne, Fitzroy, VIC 3064, Australia
- Correspondence: (R.J.W.); (A.Q.)
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9
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Murphy R, Kordbacheh S, Skoulas D, Ng S, Suthiwanich K, Kasko AM, Cryan SA, Fitzgerald-Hughes D, Khademhosseini A, Sheikhi A, Heise A. Three-dimensionally printable shear-thinning triblock copolypeptide hydrogels with antimicrobial potency. Biomater Sci 2021; 9:5144-5149. [PMID: 34236349 DOI: 10.1039/d1bm00275a] [Citation(s) in RCA: 6] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
Through rational design, block sequence controlled triblock copolypeptides comprising cysteine and tyrosine as well as a lysine or glutamic acid central block are devised. In these copolypeptides, each block contributes a specific property to the hydrogels to render them extrusion printable and antimicrobial. Three-dimensional (3D) printing of complex hydrogel structures with high shape retention is demonstrated. Moreover, composition dependent potent antimicrobial activity in contact-killing assays is elucidated.
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Affiliation(s)
- Robert Murphy
- Department of Chemistry, RCSI University of Medicine and Health Sciences, 123 St. Stephens Green, Dublin 2, Ireland.
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10
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Liu H, Talebian S, Vine KL, Li Z, Foroughi J. Implantable coaxial nanocomposite biofibers for local chemo‐photothermal combinational cancer therapy. NANO SELECT 2021. [DOI: 10.1002/nano.202100124] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/16/2022] Open
Affiliation(s)
- Hanghang Liu
- Center for Molecular Imaging and Nuclear Medicine State Key Laboratory of Radiation Medicine and Protection School for Radiological and Interdisciplinary Sciences (RAD‐X) Collaborative Innovation Center of Radiation Medicine of Jiangsu Higher Education Institutions Soochow University Suzhou P. R. China
| | - Sepehr Talebian
- Intelligent Polymer Research Institute University of Wollongong NSW Australia
- Illawarra Health and Medical Research Institute University of Wollongong Wollongong NSW Australia
| | - Kara L. Vine
- Illawarra Health and Medical Research Institute University of Wollongong Wollongong NSW Australia
- School of Chemistry and Molecular Bioscience Faculty of Science Medicine and Health University of Wollongong Wollongong NSW Australia
| | - Zhen Li
- Center for Molecular Imaging and Nuclear Medicine State Key Laboratory of Radiation Medicine and Protection School for Radiological and Interdisciplinary Sciences (RAD‐X) Collaborative Innovation Center of Radiation Medicine of Jiangsu Higher Education Institutions Soochow University Suzhou P. R. China
| | - Javad Foroughi
- Illawarra Health and Medical Research Institute University of Wollongong Wollongong NSW Australia
- School of Electrical, Computer and Telecommunications Engineering Faculty of Engineering and Information Sciences University of Wollongong NSW Australia
- University of Essen and the Westgerman Heart and Vascular Center in Germany, University of Duisburg‐Essen Essen Germany
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11
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Amphiphilic copolymers in biomedical applications: Synthesis routes and property control. MATERIALS SCIENCE & ENGINEERING. C, MATERIALS FOR BIOLOGICAL APPLICATIONS 2021; 123:111952. [PMID: 33812580 DOI: 10.1016/j.msec.2021.111952] [Citation(s) in RCA: 24] [Impact Index Per Article: 8.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 12/14/2020] [Revised: 01/29/2021] [Accepted: 02/02/2021] [Indexed: 12/16/2022]
Abstract
The request of new materials, matching strict requirements to be applied in precision and patient-specific medicine, is pushing for the synthesis of more and more complex block copolymers. Amphiphilic block copolymers are emerging in the biomedical field due to their great potential in terms of stimuli responsiveness, drug loading capabilities and reversible thermal gelation. Amphiphilicity guarantees self-assembly and thermoreversibility, while grafting polymers offers the possibility of combining blocks with various properties in one single material. These features make amphiphilic block copolymers excellent candidates for fine tuning drug delivery, gene therapy and for designing injectable hydrogels for tissue engineering. This manuscript revises the main techniques developed in the last decade for the synthesis of amphiphilic block copolymers for biomedical application. Strategies for fine tuning the properties of these novel materials during synthesis are discussed. A deep knowledge of the synthesis techniques and their effect on the performance and the biocompatibility of these polymers is the first step to move them from the lab to the bench. Current results predict a bright future for these materials in paving the way towards a smarter, less invasive, while more effective, medicine.
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12
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Advincula RC, Dizon JRC, Caldona EB, Viers RA, Siacor FDC, Maalihan RD, Espera AH. On the progress of 3D-printed hydrogels for tissue engineering. MRS COMMUNICATIONS 2021; 11:539-553. [PMID: 34367725 PMCID: PMC8330198 DOI: 10.1557/s43579-021-00069-1] [Citation(s) in RCA: 31] [Impact Index Per Article: 10.3] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 04/25/2021] [Accepted: 07/12/2021] [Indexed: 05/15/2023]
Abstract
ABSTRACT Additive manufacturing or more commonly known as 3D printing, is currently driving innovations and applications in diverse fields such as prototyping, manufacturing, aerospace, education, and medicine. Recent technological and materials research breakthroughs have enabled 3D bioprinting, where biomaterials and cells are used to create scaffolds and functional living tissues (e.g. skin, cartilage, etc.). This prospective focuses on the classification and applications of hydrogels, and design considerations in their production (i.e. physical and biological parameters). The materials for 3D printing of hydrogels, such as biopolymers, synthetic polymers, and nanocomposites, are mainly discussed. More importantly, future perspectives on 3D printing hydrogels including new materials, 4D printing, emerging printing technologies, etc. and their importance in biomedical and bioengineering applications are discussed.
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Affiliation(s)
- Rigoberto C. Advincula
- Department of Chemical and Biomolecular Engineering and Joint Institute for Advanced Materials, University of Tennessee, Knoxville, TN 37996 USA
- Center for Nanophase Materials and Sciences (CNMS), Oak Ridge National Laboratory, Oak Ridge, TN 37830 USA
- Department of Macromolecular Science and Engineering, Case Western Reserve University, Cleveland, OH 44106 USA
| | - John Ryan C. Dizon
- Design, Research, Extension in Additive Manufacturing, Advanced Materials and Advanced Manufacturing (DR3AM) Center/Department of Industrial Engineering, College of Engineering and Architecture, Bataan Peninsula State University, City of Balanga, 2100 Bataan, Philippines
| | - Eugene B. Caldona
- Department of Chemical and Biomolecular Engineering and Joint Institute for Advanced Materials, University of Tennessee, Knoxville, TN 37996 USA
| | - Robert Andrew Viers
- Department of Chemical and Biomolecular Engineering and Joint Institute for Advanced Materials, University of Tennessee, Knoxville, TN 37996 USA
| | - Francis Dave C. Siacor
- BioProcess Engineering and Research Center and Department of Chemical Engineering, University of San Carlos, 6014 Cebu City, Philippines
| | - Reymark D. Maalihan
- Chemical and Food Engineering Department and Material Testing and Calibration Center, Batangas State University, 4200 Batangas City, Philippines
| | - Alejandro H. Espera
- Electronics Engineering Department, School of Engineering and Architecture, Ateneo de Davao University, 8016 Davao City, Philippines
- Department of Engineering Education, College of Engineering, Virginia Polytechnic Institute and State University, Blacksburg, VA 24061 USA
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O'Brien S, Brannigan RP, Ibanez R, Wu B, O'Dwyer J, O'Brien FJ, Cryan SA, Heise A. Biocompatible polypeptide-based interpenetrating network (IPN) hydrogels with enhanced mechanical properties. J Mater Chem B 2020; 8:7785-7791. [PMID: 32744280 DOI: 10.1039/d0tb01422b] [Citation(s) in RCA: 12] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
Hydrogels are widely used for biomedical applications such as drug delivery, tissue engineering, or wound healing owing to their mimetic properties in relation to biological tissues. The generation of peptide-based hydrogels is a topic of interest due to their potential to increase biocompatibility. However, their usages can be limited when compared to other synthetic hydrogels because of their inferior mechanical properties. Herein, we present the synthesis of novel synthetic polypeptide-based interpenetrating network (IPN) hydrogels with enhanced mechanical properties. The polypeptide single network is obtained from alkyne functional polypeptides crosslinked with di, tri and tetra azide functional PEG by copper-catalysed alkyne-azide cycloaddition (CuAAC). Interpenetrating networks were subsequently obtained by loading of the polypeptide single network with PEG-dithiol and orthogonally UV-crosslinking with varying molar ratios of pentaerythritol tetraacrylate. The characteristics, including the mechanical strength (i.e. compressive strength (UCS), fracture strain (εbreak), and Young's modulus (E)) and cell compatibility (i.e. metabolic activity and Live/Dead of human Mesenchymal Stem Cells), of each synthetic polypeptide-based IPN hydrogel were studied and evaluated in order to demonstrate their potential as mechanically robust hydrogels for use as artificial tissues. Moreover, 1H NMR diffusometry was carried out to examine the water mobility (DH2O) within the polypeptide-based hydrogels and IPNs. It was found that both the mechanical and morphological properties could be tailored concurrently with the hydrophilicity, rate of water diffusion and 'swellability'. Finally it was shown that the polypeptide-based IPN hydrogels exhibited good biocompatibility, highlighting their potential as soft tissue scaffolds.
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Affiliation(s)
- Shona O'Brien
- Department of Chemistry, Royal College of Surgeons in Ireland, 123 St. Stephens Green, Dublin 2, Ireland.
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14
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Jiang Z, Diggle B, Tan ML, Viktorova J, Bennett CW, Connal LA. Extrusion 3D Printing of Polymeric Materials with Advanced Properties. ADVANCED SCIENCE (WEINHEIM, BADEN-WURTTEMBERG, GERMANY) 2020; 7:2001379. [PMID: 32999820 PMCID: PMC7507554 DOI: 10.1002/advs.202001379] [Citation(s) in RCA: 71] [Impact Index Per Article: 17.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 04/14/2020] [Revised: 06/03/2020] [Indexed: 05/24/2023]
Abstract
3D printing is a rapidly growing technology that has an enormous potential to impact a wide range of industries such as engineering, art, education, medicine, and aerospace. The flexibility in design provided by this technique offers many opportunities for manufacturing sophisticated 3D devices. The most widely utilized method is an extrusion-based solid-freeform fabrication approach, which is an extremely attractive additive manufacturing technology in both academic and industrial research communities. This method is versatile, with the ability to print a range of dimensions, multimaterial, and multifunctional 3D structures. It is also a very affordable technique in prototyping. However, the lack of variety in printable polymers with advanced material properties becomes the main bottleneck in further development of this technology. Herein, a comprehensive review is provided, focusing on material design strategies to achieve or enhance the 3D printability of a range of polymers including thermoplastics, thermosets, hydrogels, and other polymers by extrusion techniques. Moreover, diverse advanced properties exhibited by such printed polymers, such as mechanical strength, conductance, self-healing, as well as other integrated properties are highlighted. Lastly, the stimuli responsiveness of the 3D printed polymeric materials including shape morphing, degradability, and color changing is also discussed.
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Affiliation(s)
- Zhen Jiang
- Research School of ChemistryAustralian National UniversityCanberraACT2601Australia
| | - Broden Diggle
- Research School of ChemistryAustralian National UniversityCanberraACT2601Australia
| | - Ming Li Tan
- Research School of ChemistryAustralian National UniversityCanberraACT2601Australia
| | - Jekaterina Viktorova
- Research School of ChemistryAustralian National UniversityCanberraACT2601Australia
| | | | - Luke A. Connal
- Research School of ChemistryAustralian National UniversityCanberraACT2601Australia
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15
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Uman S, Dhand A, Burdick JA. Recent advances in shear‐thinning and self‐healing hydrogels for biomedical applications. J Appl Polym Sci 2020. [DOI: 10.1002/app.48668] [Citation(s) in RCA: 100] [Impact Index Per Article: 25.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/11/2022]
Affiliation(s)
- Selen Uman
- Department of BioengineeringUniversity of Pennsylvania Philadelphia Pennsylvania 19104
| | - Abhishek Dhand
- Department of Chemical and Biomolecular EngineeringUniversity of Pennsylvania Philadelphia Pennsylvania 19104
| | - Jason A. Burdick
- Department of BioengineeringUniversity of Pennsylvania Philadelphia Pennsylvania 19104
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16
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Hendi A, Umair Hassan M, Elsherif M, Alqattan B, Park S, Yetisen AK, Butt H. Healthcare Applications of pH-Sensitive Hydrogel-Based Devices: A Review. Int J Nanomedicine 2020; 15:3887-3901. [PMID: 32581536 PMCID: PMC7276332 DOI: 10.2147/ijn.s245743] [Citation(s) in RCA: 52] [Impact Index Per Article: 13.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/13/2020] [Accepted: 03/17/2020] [Indexed: 12/12/2022] Open
Abstract
pH-sensitive hydrogels have been developed greatly over the past few years. This has been possible due to the synthesis of new hydrogel systems with increased sensitivity – a sensitivity of up to 10−5 pH units has already been established. Recently, pH-sensitive hydrogels have shown to be very useful in biomedical applications, such as targeted cancer treatment and treatment of skin lesions. Prolonged drug release has been made available through the use of such hydrogels. The synthesis of pH-sensitive hydrogels is also quick and cost-effective. This review presents a background on the properties of pH-sensitive hydrogels and discusses some of the hydrogels with different sensitivity ranges and their possible applications. A range of synthesis processes have also been briefly introduced along with the fabrication of different structures such as microcantilevers and contact lenses.
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Affiliation(s)
- Asail Hendi
- School of Engineering, University of Birmingham, Birmingham B15 2TT, UK
| | | | - Mohamed Elsherif
- Department of Experimental Nuclear Physics, Nuclear Research Center, Egyptian Atomic Energy Authority, Cairo, Egypt
| | - Bader Alqattan
- Department of Mechanical Engineering, Khalifa University, Abu Dhabi, United Arab Emirates
| | - Seongjun Park
- Department of Bio and Brain Engineering, Korea Advanced Institute of Science and Technology (KAIST), Daejeon 34141, Republic of Korea.,KAIST Institute for Health Science and Technology (KIHST), Korea Advanced Institute of Science and Technology (KAIST), Daejeon 34141, Republic of Korea
| | - Ali Kemal Yetisen
- Department of Chemical Engineering, Imperial College London, London SW7 2AZ, UK
| | - Haider Butt
- Department of Mechanical Engineering, Khalifa University, Abu Dhabi, United Arab Emirates
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17
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Narupai B, Nelson A. 100th Anniversary of Macromolecular Science Viewpoint: Macromolecular Materials for Additive Manufacturing. ACS Macro Lett 2020; 9:627-638. [PMID: 35648567 DOI: 10.1021/acsmacrolett.0c00200] [Citation(s) in RCA: 39] [Impact Index Per Article: 9.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/21/2022]
Abstract
Additive manufacturing (AM) has drawn tremendous attention as a versatile platform for the on-demand fabrication of objects with excellent spatial control of chemical compositions and complex architectures. The development of materials that are specifically designed for AM is highly desirable for a variety of applications ranging from personal healthcare, tissue engineering, biomedical devices, self-folding origami structures, and soft robotics. Polymeric macromolecules have received increasing attention due to a wide variety of materials, the versatility for novel chemistries, and the ability to tune chemical composition and architecture. This Viewpoint highlights the development of polymeric materials for direct-ink writing and vat photopolymerization for 3D printing applications. Recent chemical innovations and polymer architectures are overviewed, which also includes recent developments in responsive and adaptive objects from AM. Polymers for biological interface and sustainability in AM are also discussed.
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Affiliation(s)
- Benjaporn Narupai
- The Department of Chemistry, University of Washington, Seattle, Washington 98195, United States
| | - Alshakim Nelson
- The Department of Chemistry, University of Washington, Seattle, Washington 98195, United States
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18
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Yang X, Hao Y, Cao L. Bio-Compatible Ca-BDC/Polymer Monolithic Composites Templated from Bio-Active Ca-BDC Co-Stabilized CO 2-in-Water High Internal Phase Emulsions. Polymers (Basel) 2020; 12:E931. [PMID: 32316501 PMCID: PMC7240421 DOI: 10.3390/polym12040931] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/07/2020] [Revised: 04/13/2020] [Accepted: 04/14/2020] [Indexed: 11/17/2022] Open
Abstract
Because of the nontoxic solvents contained in CO2-in-water emulsions, porous polymer composites templated from these emulsions are conducive for bio-applications. Herein, bio-active rod-like calcium-organic framworks (Ca-BDC MOFs, BDC= 1,4-benzenedicarboxylate anion) particles co-stabilized CO2-in-water high internal phase emulsion (C/W HIPE) in the presence of polyvinyl alcohol (PVA) is first presented. After curing of the continuous phase, followed by releasing CO2, integral 3D macro-porous Ca-BDC monolith and Ca-BDC/Poly(2-hydroxyethyl methacrylate-co-acrylamide) HIPEs monolithic composites [Ca-BDC/P(AM-co-HEMA)HIPEs] with open-cell macro-porous structures were successfully prepared. The pore structure of these porous composite can be tuned by means of tailoring the Ca-BDC dosage, carbon dioxide pressure, and continuous phase volume fractions in corresponding C/W HIPEs. Results of bio-compatibility tests show that these Ca-BDC/P(AM-co-HEMA)HIPEs monoliths have non-cytotoxicity on HepG2 cells; also, the E. coli can grow either on the surfaces or inside these monoliths. Furthermore, immobilization of β-amylase on these porous composite presents that β-amylase can be well-anchored into the porous polymer composites, its catalytic activity can be maintained even after 10 cycles. This work combined bio-active MOFs Ca-BDC, bio-compatible open-cell macroporous polymer PAM-co-HEMA and green C/W HIPEs to present a novel and facile way to prepare interconnected macro-porous MOFs/polymer composites. Compared with the existing other well-known materials such as hydrogels, these porous composites possess well-defined tunable pore structures and superior bio-activity, thereby have promising applications in bio-tissue engineering, food, and pharmaceutical.
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Affiliation(s)
| | | | - Liqin Cao
- Key Laboratory of Oil and Gas Fine Chemicals, Ministry of Education & Xinjiang Uygur Autonomous Region, Xinjiang University, Urumqi 830046, China; (X.Y.); (Y.H.)
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19
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Chan NJA, Gu D, Tan S, Fu Q, Pattison TG, O'Connor AJ, Qiao GG. Spider-silk inspired polymeric networks by harnessing the mechanical potential of β-sheets through network guided assembly. Nat Commun 2020; 11:1630. [PMID: 32242004 PMCID: PMC7118121 DOI: 10.1038/s41467-020-15312-x] [Citation(s) in RCA: 27] [Impact Index Per Article: 6.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/27/2019] [Accepted: 02/24/2020] [Indexed: 12/26/2022] Open
Abstract
The high toughness of natural spider-silk is attributed to their unique β-sheet secondary structures. However, the preparation of mechanically strong β-sheet rich materials remains a significant challenge due to challenges involved in processing the polymers/proteins, and managing the assembly of the hydrophobic residues. Inspired by spider-silk, our approach effectively utilizes the superior mechanical toughness and stability afforded by localised β-sheet domains within an amorphous network. Using a grafting-from polymerisation approach within an amorphous hydrophilic network allows for spatially controlled growth of poly(valine) and poly(valine-r-glycine) as β-sheet forming polypeptides via N-carboxyanhydride ring opening polymerisation. The resulting continuous β-sheet nanocrystal network exhibits improved compressive strength and stiffness over the initial network lacking β-sheets of up to 30 MPa (300 times greater than the initial network) and 6 MPa (100 times greater than the initial network) respectively. The network demonstrates improved resistance to strong acid, base and protein denaturants over 28 days. It is known the β-sheet structures in silk-inspired materials generate increased mechanical properties. Here, the authors report on a method of creating silk-inspired materials using in situ formation of β-sheets in an amorphous polymer to replicate the structure of silk and increase the mechanical properties.
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Affiliation(s)
- Nicholas Jun-An Chan
- Polymer Science Group, Department of Chemical Engineering, University of Melbourne, Parkville, Melbourne, VIC, 3010, Australia
| | - Dunyin Gu
- Polymer Science Group, Department of Chemical Engineering, University of Melbourne, Parkville, Melbourne, VIC, 3010, Australia
| | - Shereen Tan
- Polymer Science Group, Department of Chemical Engineering, University of Melbourne, Parkville, Melbourne, VIC, 3010, Australia
| | - Qiang Fu
- Polymer Science Group, Department of Chemical Engineering, University of Melbourne, Parkville, Melbourne, VIC, 3010, Australia
| | - Thomas Geoffrey Pattison
- Polymer Science Group, Department of Chemical Engineering, University of Melbourne, Parkville, Melbourne, VIC, 3010, Australia
| | - Andrea J O'Connor
- Department of Biomedical Engineering, University of Melbourne, Parkville, Melbourne, VIC, 3010, Australia
| | - Greg G Qiao
- Polymer Science Group, Department of Chemical Engineering, University of Melbourne, Parkville, Melbourne, VIC, 3010, Australia.
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20
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Synthesis of mechanically robust renewable poly(ester-amide)s through co-polymerisation of unsaturated polyesters and synthetic polypeptides. Eur Polym J 2020. [DOI: 10.1016/j.eurpolymj.2019.109417] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/19/2022]
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21
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Rasines Mazo A, Allison-Logan S, Karimi F, Chan NJA, Qiu W, Duan W, O’Brien-Simpson NM, Qiao GG. Ring opening polymerization of α-amino acids: advances in synthesis, architecture and applications of polypeptides and their hybrids. Chem Soc Rev 2020; 49:4737-4834. [DOI: 10.1039/c9cs00738e] [Citation(s) in RCA: 93] [Impact Index Per Article: 23.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/17/2022]
Abstract
This review provides a comprehensive overview of the latest advances in the synthesis, architectural design and biomedical applications of polypeptides and their hybrids.
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Affiliation(s)
- Alicia Rasines Mazo
- Polymer Science Group
- Department of Chemical Engineering
- University of Melbourne
- Parkville
- Australia
| | - Stephanie Allison-Logan
- Polymer Science Group
- Department of Chemical Engineering
- University of Melbourne
- Parkville
- Australia
| | - Fatemeh Karimi
- Polymer Science Group
- Department of Chemical Engineering
- University of Melbourne
- Parkville
- Australia
| | - Nicholas Jun-An Chan
- Polymer Science Group
- Department of Chemical Engineering
- University of Melbourne
- Parkville
- Australia
| | - Wenlian Qiu
- Polymer Science Group
- Department of Chemical Engineering
- University of Melbourne
- Parkville
- Australia
| | - Wei Duan
- School of Medicine
- Deakin University
- Geelong
- Australia
| | - Neil M. O’Brien-Simpson
- Centre for Oral Health Research
- Melbourne Dental School and the Bio21 Institute of Molecular Science and Biotechnology
- University of Melbourne
- Parkville
- Australia
| | - Greg G. Qiao
- Polymer Science Group
- Department of Chemical Engineering
- University of Melbourne
- Parkville
- Australia
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22
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He H, Sofman M, Wang AJS, Ahrens CC, Wang W, Griffith LG, Hammond PT. Engineering Helical Modular Polypeptide-Based Hydrogels as Synthetic Extracellular Matrices for Cell Culture. Biomacromolecules 2019; 21:566-580. [DOI: 10.1021/acs.biomac.9b01297] [Citation(s) in RCA: 17] [Impact Index Per Article: 3.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
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23
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Murphy RD, Bobbi E, Oliveira FCS, Cryan S, Heise A. Gelating polypeptide matrices based on the difunctional
N
‐carboxyanhydride diaminopimelic acid cross‐linker. ACTA ACUST UNITED AC 2019. [DOI: 10.1002/pola.29376] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/19/2022]
Affiliation(s)
- Robert D. Murphy
- Department of ChemistryRoyal College of Surgeons in Ireland Dublin 2 Ireland
| | - Elena Bobbi
- Department of ChemistryRoyal College of Surgeons in Ireland Dublin 2 Ireland
| | | | - Sally‐Ann Cryan
- Drug Delivery & Advanced Materials TeamSchool of Pharmacy RCSI, Dublin 2 Ireland
- Trinity Centre for BioengineeringTrinity College Dublin (TCD) Dublin 2 Ireland
- Centre for Research in Medical Devices (CURAM)RCSI, Dublin 2 and National University of Ireland Galway Ireland
| | - Andreas Heise
- Department of ChemistryRoyal College of Surgeons in Ireland Dublin 2 Ireland
- Centre for Research in Medical Devices (CURAM)RCSI, Dublin 2 and National University of Ireland Galway Ireland
- Advanced Materials and Bioengineering Research Centre (AMBER) RCSI and TCD Dublin 2 Ireland
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24
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Townsend JM, Beck EC, Gehrke SH, Berkland CJ, Detamore MS. Flow Behavior Prior to Crosslinking: The Need for Precursor Rheology for Placement of Hydrogels in Medical Applications and for 3D Bioprinting. Prog Polym Sci 2019; 91:126-140. [PMID: 31571701 PMCID: PMC6768569 DOI: 10.1016/j.progpolymsci.2019.01.003] [Citation(s) in RCA: 90] [Impact Index Per Article: 18.0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/22/2022]
Abstract
Hydrogels - water swollen cross-linked networks - have demonstrated considerable promise in tissue engineering and regenerative medicine applications. However, ambiguity over which rheological properties are needed to characterize these gels before crosslinking still exists. Most hydrogel research focuses on the performance of the hydrogel construct after implantation, but for clinical practice, and for related applications such as bioinks for 3D bioprinting, the behavior of the pre-gelled state is also critical. Therefore, the goal of this review is to emphasize the need for better rheological characterization of hydrogel precursor formulations, and standardized testing for surgical placement or 3D bioprinting. In particular, we consider engineering paste or putty precursor solutions (i.e., suspensions with a yield stress), and distinguish between these differences to ease the path to clinical translation. The connection between rheology and surgical application as well as how the use of paste and putty nomenclature can help to qualitatively identify material properties are explained. Quantitative rheological properties for defining materials as either pastes or putties are proposed to enable easier adoption to current methods. Specifically, the three-parameter Herschel-Bulkley model is proposed as a suitable model to correlate experimental data and provide a basis for meaningful comparison between different materials. This model combines a yield stress, the critical parameter distinguishing solutions from pastes (100-2000 Pa) and from putties (>2000 Pa), with power law fluid behavior once the yield stress is exceeded. Overall, successful implementation of paste or putty handling properties to the hydrogel precursor may minimize the surgeon-technology learning time and ultimately ease incorporation into current practice. Furthermore, improved understanding and reporting of rheological properties will lead to better theoretical explanations of how materials affect rheological performances, to better predict and design the next generation of biomaterials.
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Affiliation(s)
- Jakob M. Townsend
- Stephenson School of Biomedical Engineering, University of Oklahoma, Norman, OK 73019, USA
| | - Emily C. Beck
- Department of Bioengineering, University of Colorado Anschutz Medical Campus, Denver, CO 80045, USA
| | - Stevin H. Gehrke
- Department of Chemical and Petroleum Engineering, University of Kansas, Lawrence, KS 66045, USA
| | - Cory J. Berkland
- Department of Chemical and Petroleum Engineering, University of Kansas, Lawrence, KS 66045, USA
- Department of Pharmaceutical Chemistry, University of Kansas, Lawrence, KS 66045, USA
| | - Michael S. Detamore
- Stephenson School of Biomedical Engineering, University of Oklahoma, Norman, OK 73019, USA
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25
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Saunders L, Ma PX. Self-Healing Supramolecular Hydrogels for Tissue Engineering Applications. Macromol Biosci 2019; 19:e1800313. [PMID: 30565872 PMCID: PMC6486376 DOI: 10.1002/mabi.201800313] [Citation(s) in RCA: 128] [Impact Index Per Article: 25.6] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/15/2018] [Revised: 10/03/2018] [Indexed: 12/19/2022]
Abstract
Self-healing supramolecular hydrogels have emerged as a novel class of biomaterials that combine hydrogels with supramolecular chemistry to develop highly functional biomaterials with advantages including native tissue mimicry, biocompatibility, and injectability. These properties are endowed by the reversibly cross-linked polymer network of the hydrogel. These hydrogels have great potential for realizing yet to be clinically translated tissue engineering therapies. This review presents methods of self-healing supramolecular hydrogel formation and their uses in tissue engineering as well as future perspectives.
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Affiliation(s)
- Laura Saunders
- Macromolecular Science and Engineering Center, University of Michigan, Ann Arbor, MI, USA
| | - Peter X. Ma
- Macromolecular Science and Engineering Center, University of Michigan, Ann Arbor, MI, USA, Biologic and Materials Science, University of Michigan, Ann Arbor, MI, USA, Biomedical Engineering, University of Michigan, Ann Arbor, MI, USA, Materials Science and Engineering, University of Michigan, Ann Arbor, MI, USA,
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26
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Murphy RD, Kimmins S, Hibbitts AJ, Heise A. 3D-extrusion printing of stable constructs composed of photoresponsive polypeptide hydrogels. Polym Chem 2019. [DOI: 10.1039/c9py00796b] [Citation(s) in RCA: 20] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/04/2023]
Abstract
Printing of novel linear polypeptide hydrogel bioinks and stabilisation of structures by post-printing UV-triggered crosslinking through catalyst free thiol–yne click chemistry of cysteine and propiolated 4-arm PEG.
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Affiliation(s)
- Robert D. Murphy
- Department of Chemistry
- Royal College of Surgeons in Ireland
- Dublin 2
- Ireland
| | - Scott Kimmins
- Department of Chemistry
- Royal College of Surgeons in Ireland
- Dublin 2
- Ireland
- Institute for Biological and Medical Engineering
| | - Alan J. Hibbitts
- Tissue Engineering Research Group
- Department of Anatomy
- Royal College of Surgeons in Ireland
- Dublin
- Ireland
| | - Andreas Heise
- Department of Chemistry
- Royal College of Surgeons in Ireland
- Dublin 2
- Ireland
- Advanced Materials and Bioengineering Research Centre (AMBER) RCSI and TCD
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27
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Hanay SB, O’Dwyer J, Kimmins SD, de Oliveira FCS, Haugh MG, O’Brien FJ, Cryan SA, Heise A. Facile Approach to Covalent Copolypeptide Hydrogels and Hybrid Organohydrogels. ACS Macro Lett 2018; 7:944-949. [PMID: 35650970 DOI: 10.1021/acsmacrolett.8b00431] [Citation(s) in RCA: 11] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/07/2023]
Abstract
Crosslinking of tryptophan (Trp) containing copolypeptides with varying ratios of benzyl-l-glutamate (BLG) and Nα-(carbobenzyloxy)-l-lysine (Z-Lys) is achieved by the selective reaction with hexamethylene-bis-TAD (bisTAD). Conversion of the resulting organogels into biocompatible hydrogels by full BLG or Z-Lys deprotection is demonstrated. Moreover, diffusion controlled deprotection allows the design of macroscopic hybrid organohydrogels comprising hydrophilic as well as hydrophobic regions at a desired ratio and position. FTIR and SEM analysis confirm the coexistence of both hydrophilic and hydrophobic segments in one copolypeptide piece. Selective loading of hydrogel and organogel segments with hydrophilic and hydrophobic dyes, respectively, is observed on macroscopic amphiphilic gels and films. These materials offer significant potential as dual-loaded drug release gels as well as tissue engineering platforms.
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Affiliation(s)
- Saltuk B. Hanay
- Department of Chemistry, Royal College of Surgeons in Ireland, Dublin 2, Ireland
| | - Joanne O’Dwyer
- Drug Delivery and Advanced Materials Team, School of Pharmacy, RCSI, Dublin 2, Ireland
- Tissue Engineering Research Group, Department of Anatomy, RCSI, Dublin 2, Ireland
| | - Scott D. Kimmins
- Department of Chemistry, Royal College of Surgeons in Ireland, Dublin 2, Ireland
| | | | - Matthew G. Haugh
- Tissue Engineering Research Group, Department of Anatomy, RCSI, Dublin 2, Ireland
| | - Fergal J. O’Brien
- Tissue Engineering Research Group, Department of Anatomy, RCSI, Dublin 2, Ireland
- Trinity Centre for Bioengineering, Trinity College Dublin (TCD), Dublin 2, Ireland
- Centre for Research in Medical Devices (CURAM), RCSI, Dublin 2, and National University of Ireland, Galway, Ireland
- Advanced Materials and Bioengineering Research Centre (AMBER) RCSI and TCD, Dublin 2, Ireland
| | - Sally-Ann Cryan
- Drug Delivery and Advanced Materials Team, School of Pharmacy, RCSI, Dublin 2, Ireland
- Trinity Centre for Bioengineering, Trinity College Dublin (TCD), Dublin 2, Ireland
- Centre for Research in Medical Devices (CURAM), RCSI, Dublin 2, and National University of Ireland, Galway, Ireland
| | - Andreas Heise
- Department of Chemistry, Royal College of Surgeons in Ireland, Dublin 2, Ireland
- Centre for Research in Medical Devices (CURAM), RCSI, Dublin 2, and National University of Ireland, Galway, Ireland
- Advanced Materials and Bioengineering Research Centre (AMBER) RCSI and TCD, Dublin 2, Ireland
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28
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Murphy RD, in het Panhuis M, Cryan SA, Heise A. Disulphide crosslinked star block copolypeptide hydrogels: influence of block sequence order on hydrogel properties. Polym Chem 2018. [DOI: 10.1039/c8py00741a] [Citation(s) in RCA: 10] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
Strong redox responsive hydrogels with mechanical properties depending on the positioning of oligo(cysteine) within the star polypeptides were obtained.
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Affiliation(s)
- Robert D. Murphy
- Department of Chemistry
- Royal College of Surgeons in Ireland
- Dublin 2
- Ireland
| | - Marc in het Panhuis
- Soft Materials Group
- School of Chemistry
- and Australian Research Council Centre of Excellence for Electromaterials Science
- University of Wollongong
- Wollongong
| | - Sally-Ann Cryan
- Drug Delivery & Advanced Materials Team
- School of Pharmacy
- RCSI
- Dublin
- Ireland
| | - Andreas Heise
- Department of Chemistry
- Royal College of Surgeons in Ireland
- Dublin 2
- Ireland
- Centre for Research in Medical Devices (CURAM)
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