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Moon W, Feng X, Li GY, Yun SH. High-Frequency Optical Coherence Elastography for Gingival Tissue Characterization: Variability in Stiffness and Response to Physiological Conditions. Biomater Res 2024; 28:0044. [PMID: 38952715 PMCID: PMC11214824 DOI: 10.34133/bmr.0044] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/10/2024] [Accepted: 05/08/2024] [Indexed: 07/03/2024] Open
Abstract
Accurate measurement of gingiva's biomechanical properties in vivo has been an active field of research but remained an unmet challenge. Currently, there are no noninvasive tools that can accurately quantify tensile and shear moduli, which govern gingival health, with sufficiently high accuracy. This study presents the application of high-frequency optical coherence elastography (OCE) for characterizing gingival tissue in both porcine models and human subjects. Dynamic mechanical analysis, histology studies, and strain analysis are performed to support the OCE result. Our findings demonstrate substantial differences in tissue stiffness between supra-dental and inter-dental gingiva, validated by dynamic mechanical analysis and OCE. We confirmed the viscoelastic, nearly linear, and transverse-isotropic properties of gingiva in situ, establishing the reliability of OCE measurements. Further, we investigated the effects of tissue hydration, collagen degradation, and dehydration on gingival stiffness. These conditions showed a decrease and increase in stiffness, respectively. While preliminary, our study suggests OCE's potential in periodontal diagnosis and oral tissue engineering, offering real-time, millimeter-scale resolution assessments of tissue stiffness, crucial for clinical applications and biomaterial optimization in reconstructive surgeries.
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Affiliation(s)
- Wonjoon Moon
- Harvard Medical School and Wellman Center for Photomedicine,
Massachusetts General Hospital, Boston, MA 02114, USA
| | - Xu Feng
- Harvard Medical School and Wellman Center for Photomedicine,
Massachusetts General Hospital, Boston, MA 02114, USA
| | - Guo-Yang Li
- Harvard Medical School and Wellman Center for Photomedicine,
Massachusetts General Hospital, Boston, MA 02114, USA
| | - Seok-Hyun Yun
- Harvard Medical School and Wellman Center for Photomedicine,
Massachusetts General Hospital, Boston, MA 02114, USA
- Harvard-MIT Division of Health Sciences and Technology, Cambridge, MA 02139, USA
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2
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Wang X, Li K, Yuan Y, Zhang N, Zou Z, Wang Y, Yan S, Li X, Zhao P, Li Q. Nonlinear Elasticity of Blood Vessels and Vascular Grafts. ACS Biomater Sci Eng 2024; 10:3631-3654. [PMID: 38815169 DOI: 10.1021/acsbiomaterials.4c00326] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 06/01/2024]
Abstract
The transplantation of vascular grafts has emerged as a prevailing approach to address vascular disorders. However, the development of small-diameter vascular grafts is still in progress, as they serve in a more complicated mechanical environment than their counterparts with larger diameters. The biocompatibility and functional characteristics of small-diameter vascular grafts have been well developed; however, mismatch in mechanical properties between the vascular grafts and native arteries has not been accomplished, which might facilitate the long-term patency of small-diameter vascular grafts. From a point of view in mechanics, mimicking the nonlinear elastic mechanical behavior exhibited by natural blood vessels might be the state-of-the-art in designing vascular grafts. This review centers on elucidating the nonlinear elastic behavior of natural blood vessels and vascular grafts. The biological functionality and limitations associated with as-reported vascular grafts are meticulously reviewed and the future trajectory for fabricating biomimetic small-diameter grafts is discussed. This review might provide a different insight from the traditional design and fabrication of artificial vascular grafts.
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Affiliation(s)
- Xiaofeng Wang
- School of Mechanics and Safety Engineering, National Center for International Research of Micro-nano Molding Technology, Zhengzhou University, Zhengzhou 450001, China
- The State Key Laboratory of Fluid Power and Mechatronic Systems, Zhejiang University, Hangzhou 310027, China
| | - Kecheng Li
- School of Mechanics and Safety Engineering, National Center for International Research of Micro-nano Molding Technology, Zhengzhou University, Zhengzhou 450001, China
| | - Yuan Yuan
- School of Mechanics and Safety Engineering, National Center for International Research of Micro-nano Molding Technology, Zhengzhou University, Zhengzhou 450001, China
| | - Ning Zhang
- School of Mechanics and Safety Engineering, National Center for International Research of Micro-nano Molding Technology, Zhengzhou University, Zhengzhou 450001, China
| | - Zifan Zou
- School of Mechanics and Safety Engineering, National Center for International Research of Micro-nano Molding Technology, Zhengzhou University, Zhengzhou 450001, China
| | - Yun Wang
- School of Mechanics and Safety Engineering, National Center for International Research of Micro-nano Molding Technology, Zhengzhou University, Zhengzhou 450001, China
| | - Shujie Yan
- School of Mechanics and Safety Engineering, National Center for International Research of Micro-nano Molding Technology, Zhengzhou University, Zhengzhou 450001, China
| | - Xiaomeng Li
- School of Mechanics and Safety Engineering, National Center for International Research of Micro-nano Molding Technology, Zhengzhou University, Zhengzhou 450001, China
| | - Peng Zhao
- The State Key Laboratory of Fluid Power and Mechatronic Systems, Zhejiang University, Hangzhou 310027, China
| | - Qian Li
- School of Mechanics and Safety Engineering, National Center for International Research of Micro-nano Molding Technology, Zhengzhou University, Zhengzhou 450001, China
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3
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The mechanical behavior of silk-fibroin reinforced alginate hydrogel biocomposites - Toward functional tissue biomimetics. J Mech Behav Biomed Mater 2023; 138:105598. [PMID: 36455380 DOI: 10.1016/j.jmbbm.2022.105598] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/14/2022] [Revised: 11/08/2022] [Accepted: 11/23/2022] [Indexed: 11/29/2022]
Abstract
Soft tissues are constructed as fiber-reinforced composites consisting of structural mechanisms and unique mechanical behavior. Biomimetics of their mechanical behavior is currently a significant bioengineering challenge, emphasizing the need to replicate structural and mechanical mechanisms into novel biocomposite designs. Here we present a novel silk-based biocomposite laminate constructed from long natural silk and fibroin fibers embedded in an alginate hydrogel matrix. Controlling the mechanical features of these laminates were studied for different fiber volume fractions (VF) and orientations using unidirectional tensile tests. Three material systems were investigated having different fiber orientations: longitudinal (0°), transverse (90°), and cross-plied (0/90°). The general behavior of the biocomposite laminates was anisotropic hyperelastic with large deformations. Longitudinal fibroin laminates have shown a tensile modulus of 178.55 ± 14.46 MPa and tensile strength of 18.47 ± 2.01 MPa for 0.48 VF. With similar VF, cross-plied fibroin laminates demonstrated structural shielding ability, having a tensile modulus and tensile strength of 101.73 ± 8.04 MPa and 8.29 ± 1.63 MPa for only a third of the VF directed in the stretching direction. The stress-strain behavior was in a similar range to highly stiff native human soft tissues such as ligament and meniscus. These findings demonstrate the potential of the fibroin fiber-reinforced biocomposites to mimic the mechanics of tissues with a quantitatively controlled amount of fibers and designed spatial arrangement. This can lead to new solutions for the repair and replacement of damaged functional and highly stiff soft tissues.
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Thomas B, Anderson K, De Silva I, Verbeck G, Taylor S. Attenuated Total Reflection Fourier Transform Infrared (ATR FT-IR) Spectroscopy Sensitivity to the Thermal Decay of Bone Collagen. APPLIED SPECTROSCOPY 2023; 77:53-61. [PMID: 36253880 DOI: 10.1177/00037028221135634] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/16/2023]
Abstract
The analysis of collagen stability is of interest in forensics, archaeology, and molecular paleontology. Collagen decay rates are often measured by thermal kinetic studies that employ liquid chromatography mass spectrometry (LC-MS) to assay collagen quantities. However, these kinetic studies generally focus on measuring the decreasing levels of collagen instead of an exact molecular concentration of each sample. Thus, attenuated total reflection Fourier transform infrared (ATR FT-IR) spectroscopy can offer a simpler and less expensive alternative to LC-MS. The application of a new protocol to determine decreasing amounts of bone collagen in artificially decayed porcine and bovine bone was assessed. The protocol uses a forensic application of ATR FT-IR spectroscopy on size-restricted bone powder from three uniformly high temperature conditions. Also, for the first time, collagen-specific second-harmonic generation (SHG) imaging was also applied to artificially aged bone to add an independent, qualitative perspective to parallel FT-IR assessments. SHG images and ATR FT-IR spectra together reveal the same orderly bone collagen decay as found in previous thermal kinetic studies. Resulting Arrhenius plots with r2 values > 0.95 suggest that the ATR FT-IR-based protocol has potential as a precise and simple tool for measuring bone collagen decay rates. The results are significant for applications of thermal kinetic studies, and our protocol can serve as an inexpensive, precise, and pragmatic means of evaluating bone collagen stability within an array of conditions.
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Affiliation(s)
- Brian Thomas
- Department of Electrical Engineering and Electronics, 4591University of Liverpool, Liverpool, UK
| | - Kevin Anderson
- Department of Biology, 52690Arizona Christian University, Glendale, AZ, USA
| | - Imesha De Silva
- Department of Chemistry, 3404University of North Texas, Denton, TX, USA
| | - Guido Verbeck
- Department of Chemistry, 3404University of North Texas, Denton, TX, USA
| | - Stephen Taylor
- Department of Electrical Engineering and Electronics, 4591University of Liverpool, Liverpool, UK
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Tian X, Zhao K, Teng A, Li Y, Wang W. A rethinking of collagen as tough biomaterials in meat packaging: assembly from native to synthetic. Crit Rev Food Sci Nutr 2022; 64:957-977. [PMID: 35997287 DOI: 10.1080/10408398.2022.2111401] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/03/2022]
Abstract
Due to the high moisture-associated typical rheology and the changeable and harsh processing conditions in the production process, packaging materials for meat products have higher requirements including a sufficient mechanical strength and proper ductility. Collagen, a highly conserved structural protein consisting of a triple helix of Gly-X-Y repeats, has been proved to be suitable packaging material for meat products. The treated animal digestive tract (i.e. the casing) is the perfect natural packaging material for wrapping meat into sausage. Its thin walls, strong toughness and impact resistance make it the oldest and best edible meat packaging. Collagen casing is another wisdom of meat packaging, which is made by collagen fibers from hide skin, presenting a rapid growth in casing market. To strengthen mechanical strength and barrier behaviors of collagen-based packaging materials, different physical, chemical, and biological cross-linking methods are springing up exuberantly, as well as a variety of reinforcement approaches including nanotechnology. In addition, the rapid development of biomimetic technology also provides a good research idea and means for the promotion of collagen's assembly and relevant mechanical properties. This review can offer some reference on fundamental theory and practical application of collagenous materials in meat products.
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Affiliation(s)
- Xiaojing Tian
- College of Food Science and Engineering, Tianjin University of Science & Technology, Tianjin, China
| | - KaiXuan Zhao
- College of Food Science and Engineering, Tianjin University of Science & Technology, Tianjin, China
| | - Anguo Teng
- College of Food Science and Engineering, Tianjin University of Science & Technology, Tianjin, China
| | - Yu Li
- College of Biotechnology, Tianjin University of Science & Technology, Tianjin, China
| | - Wenhang Wang
- College of Food Science and Engineering, Tianjin University of Science & Technology, Tianjin, China
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6
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Gaikwad A, Hlushko H, Karimineghlani P, Selin V, Sukhishvili SA. Hydrogen-Bonded, Mechanically Strong Nanofibers with Tunable Antioxidant Activity. ACS APPLIED MATERIALS & INTERFACES 2020; 12:11026-11035. [PMID: 32048504 DOI: 10.1021/acsami.9b23212] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/10/2023]
Abstract
We report on mechanically strong, water-insoluble hydrogen-bonded nanofiber mats composed of a hydrophilic polymer and a natural polyphenol that exhibit prolonged antioxidant activity. The high performance of fibrous mats resulted from the formation of a network of hydrogen bonds between a low-molecular-weight polyphenol (tannic acid, TA) and a water-soluble polymer (polyvinylpyrrolidone, PVP) and could be precisely controlled by the TA-to-PVP ratio. Dramatic enhancement (5- to 10-fold) in tensile strength, toughness, and Young's moduli of the PVP/TA fiber mats (as compared to those of pristine PVP fibers) was achieved at the maximum density of hydrogen bonds, which occurred at ∼0.2-0.4 molar fractions of TA. The formation of hydrogen bonds was confirmed by an increase in the glass-transition temperature of the polymer after binding with TA. When exposed to water, the fibers exhibited composition- and pH-dependent stabilities, with the TA-enriched fibers fully preserving their integrity in acidic and neutral media. Importantly, the fiber mats exhibited strong antioxidant activity with dual (burst and prolonged) activity profiles, which could be controlled via fiber composition, a feature useful for controlling radical-scavenging rates in environmental and biological applications.
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Affiliation(s)
- Adwait Gaikwad
- Department of Materials Science & Engineering, Texas A&M University, College Station, Texas 77843, United States
| | - Hanna Hlushko
- Department of Materials Science & Engineering, Texas A&M University, College Station, Texas 77843, United States
| | - Parvin Karimineghlani
- Department of Materials Science & Engineering, Texas A&M University, College Station, Texas 77843, United States
| | - Victor Selin
- Department of Materials Science & Engineering, Texas A&M University, College Station, Texas 77843, United States
| | - Svetlana A Sukhishvili
- Department of Materials Science & Engineering, Texas A&M University, College Station, Texas 77843, United States
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7
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Wang D, Xiong Y, Zhang B, Zhang YF, Rosen D, Ge Q. Design framework for mechanically tunable soft biomaterial composites enhanced by modified horseshoe lattice structures. SOFT MATTER 2020; 16:1473-1484. [PMID: 31971207 DOI: 10.1039/c9sm02119a] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/10/2023]
Abstract
Soft biomaterials have a wide range of applications in many areas. However, one material can only cover a specific range of mechanical performance such as the elastic modulus and stretchability. In order to improve the mechanical performance of soft biomaterials, lattice structures are embedded to reinforce the biomaterials. In this paper, rectangular and triangular lattice structures formed by modified horseshoe microstructures are used because their mechanical properties are tunable and can be tailored precisely to match the desired properties by adjusting four geometrical parameters, the length L, radius R, width w and arc angle θ0. A theoretical design framework for the modified horseshoe lattice structures is developed to predict the dependence of the mechanical behaviors on geometrical parameters. Both experiments and finite element simulations on lattice structures are conducted to validate the theoretical models. Results show that a wide range of design space for the elastic modulus (a few kPa to hundreds of MPa), stretchability (strain up to 180%) and Poisson ratio (ranging from -0.5 to 1.2) can be achieved. Experiments on lattice-hydrogel composites are also conducted to verify the reinforcement effect of lattice structures on the hydrogel. This work provides a theoretical method to predict the mechanical behaviors of the lattice structures and aid the rational design of reinforced biomaterials, which has applications in tissue engineering, drug delivery and intraocular lenses.
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Affiliation(s)
- Dong Wang
- Robotics Institute, School of Mechanical Engineering, Shanghai Jiao Tong University, Shanghai 200240, China.
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8
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Liu J, Song H, Zhang Y. Toward Imperfection-Insensitive Soft Network Materials for Applications in Stretchable Electronics. ACS APPLIED MATERIALS & INTERFACES 2019; 11:36100-36109. [PMID: 31502438 DOI: 10.1021/acsami.9b12690] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/10/2023]
Abstract
Development of stretchable devices with mechanical responses that mimic those of biological tissues/organs is of particular importance for the long-term biointegration, as the discomfort induced by the mechanical mismatch can be minimized. Recent works have established the bioinspired designs of soft network materials that can precisely reproduce the unconventional J-shaped stress-strain curves of human skin at different regions. Existing studies mostly focused on the design, fabrication, and modeling of perfect soft network materials. When utilized as the substrates of biointegrated electronics, the soft network designs, however, often need to incorporate deterministic holes, a type of imperfection, to accommodate hard, inorganic electronic components. Understanding of the effect of hole imperfections on the mechanical properties of soft network materials is thereby essential in practical applications. This paper presents a combined experimental and computational study of the stretchability and elastic modulus of imperfect soft network materials consisting of circular holes with a variety of diameters. Both the size and location of the circular-hole imperfections are shown to have profound influences on the stretchability. Based on these results, design guidelines of imperfection-insensitive network materials are introduced. For the imperfections that result in an evident reduction of stretchability, an effective reinforcement approach is presented by enlarging the width of horseshoe microstructures at strategic locations, which can enhance the stretchability considerably. A stretchable and imperfection-insensitive integrated device with a light-emitting diode embedded in the network material serves a demonstrative application.
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Affiliation(s)
- Jianxing Liu
- AML, Department of Engineering Mechanics; Center for Flexible Electronics Technology , Tsinghua University , Beijing 100084 , P.R. China
| | - Honglie Song
- AML, Department of Engineering Mechanics; Center for Flexible Electronics Technology , Tsinghua University , Beijing 100084 , P.R. China
| | - Yihui Zhang
- AML, Department of Engineering Mechanics; Center for Flexible Electronics Technology , Tsinghua University , Beijing 100084 , P.R. China
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9
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Producing Collagen Micro-stripes with Aligned Fibers for Cell Migration Assays. Cell Mol Bioeng 2019; 13:87-98. [PMID: 32030110 DOI: 10.1007/s12195-019-00600-4] [Citation(s) in RCA: 11] [Impact Index Per Article: 2.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/20/2019] [Accepted: 09/14/2019] [Indexed: 01/14/2023] Open
Abstract
Introduction The orientation of collagen fibers in native tissues plays an important role in cell signaling and mediates the progression of tumor cells in breast cancer by a contact guidance mechanism. Understanding how migration of epithelial cells is directed by the alignment of collagen fibers requires in vitro assays with standardized orientations of collagen fibers. Methods To address this issue, we produced micro-stripes with aligned collagen fibers using an easy-to-use and versatile approach based on the aspiration of a collagen solution within a microchannel. Glass coverslips were functionalized with a (3-aminopropyl)triethoxysilane/glutaraldehyde linkage to covalently anchor micro-stripes of aligned collagen fibers, whereas microchannels were functionalized with a poly(ethylene oxide)-poly(propylene oxide)-poly(ethylene oxide) (PEO-PPO-PEO) nonionic triblock polymer to prevent adhesion of the collagen micro-stripes. Results Using this strategy, microchannels can be peeled off to expose micro-stripes of aligned collagen fibers without affecting their mechanical integrity. We used time-lapse confocal reflection microscopy to characterize the polymerization kinetics of collagen networks for different concentrations and the orientation of collagen fibers as a function of the microchannel width. Our results indicate a non-linear concentration dependence of the area of fluorescence, suggesting that the architecture of collagen networks is sensitive to small changes in concentration. We show the possibility to influence the collagen fibril coverage by adjusting the concentration of the collagen solution. Conclusion We applied this novel approach to study the migration of epithelial cells, demonstrating that collagen micro-stripes with aligned fibers represent a valuable in-vitro assay for studying cell contact guidance mechanisms.
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Nerger BA, Brun PT, Nelson CM. Microextrusion printing cell-laden networks of type I collagen with patterned fiber alignment and geometry. SOFT MATTER 2019; 15:5728-5738. [PMID: 31267114 PMCID: PMC6639139 DOI: 10.1039/c8sm02605j] [Citation(s) in RCA: 64] [Impact Index Per Article: 12.8] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/23/2023]
Abstract
Type I collagen self-assembles into three-dimensional (3D) fibrous networks. These dynamic viscoelastic materials can be remodeled in response to mechanical and chemical signals to form anisotropic networks, the structure of which influences tissue development, homeostasis, and disease progression. Conventional approaches for fabricating anisotropic networks of type I collagen are often limited to unidirectional fiber alignment over small areas. Here, we describe a new approach for engineering cell-laden networks of aligned type I collagen fibers using 3D microextrusion printing of a collagen-Matrigel ink. We demonstrate hierarchical control of 3D-printed collagen with the ability to spatially pattern collagen fiber alignment and geometry. Our data suggest that collagen alignment results from a combination of molecular crowding in the ink and shear and extensional flows present during 3D printing. We demonstrate that human breast cancer cells cultured on 3D-printed collagen constructs orient along the direction of collagen fiber alignment. We also demonstrate the ability to simultaneously bioprint epithelial cell clusters and control the alignment and geometry of collagen fibers surrounding cells in the bioink. The resulting cell-laden constructs consist of epithelial cell clusters fully embedded in aligned networks of collagen fibers. Such 3D-printed constructs can be used for studies of developmental biology, tissue engineering, and regenerative medicine.
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Affiliation(s)
- Bryan A Nerger
- Department of Chemical and Biological Engineering, Princeton University, 303 Hoyt Laboratory, William Street, Princeton, NJ 08544, USA.
| | - P-T Brun
- Department of Chemical and Biological Engineering, Princeton University, 303 Hoyt Laboratory, William Street, Princeton, NJ 08544, USA.
| | - Celeste M Nelson
- Department of Chemical and Biological Engineering, Princeton University, 303 Hoyt Laboratory, William Street, Princeton, NJ 08544, USA. and Department of Molecular Biology, Princeton University, Princeton, NJ 08544, USA
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11
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Ibáñez-Fonseca A, Flora T, Acosta S, Rodríguez-Cabello JC. Trends in the design and use of elastin-like recombinamers as biomaterials. Matrix Biol 2019; 84:111-126. [PMID: 31288085 DOI: 10.1016/j.matbio.2019.07.003] [Citation(s) in RCA: 32] [Impact Index Per Article: 6.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/01/2019] [Revised: 06/23/2019] [Accepted: 07/05/2019] [Indexed: 12/16/2022]
Abstract
Elastin-like recombinamers (ELRs), which derive from one of the repetitive domains found in natural elastin, have been intensively studied in the last few years from several points of view. In this mini review, we discuss all the recent works related to the investigation of ELRs, starting with those that define these polypeptides as model intrinsically disordered proteins or regions (IDPs or IDRs) and its relevance for some biomedical applications. Furthermore, we summarize the current knowledge on the development of drug, vaccine and gene delivery systems based on ELRs, while also emphasizing the use of ELR-based hydrogels in tissue engineering and regenerative medicine (TERM). Finally, we show different studies that explore applications in other fields, and several examples that describe biomaterial blends in which ELRs have a key role. This review aims to give an overview of the recent advances regarding ELRs and to encourage further investigation of their properties and applications.
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Affiliation(s)
- Arturo Ibáñez-Fonseca
- BIOFORGE Lab, CIBER-BBN, University of Valladolid, Paseo de Belén 19, 47011 Valladolid, Spain
| | - Tatjana Flora
- BIOFORGE Lab, CIBER-BBN, University of Valladolid, Paseo de Belén 19, 47011 Valladolid, Spain
| | - Sergio Acosta
- BIOFORGE Lab, CIBER-BBN, University of Valladolid, Paseo de Belén 19, 47011 Valladolid, Spain
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12
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de Melo Pereira D, Habibovic P. Biomineralization-Inspired Material Design for Bone Regeneration. Adv Healthc Mater 2018; 7:e1800700. [PMID: 30240157 DOI: 10.1002/adhm.201800700] [Citation(s) in RCA: 51] [Impact Index Per Article: 8.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/18/2018] [Revised: 08/23/2018] [Indexed: 12/22/2022]
Abstract
Synthetic substitutes of bone grafts, such as calcium phosphate-based ceramics, have shown some good clinical successes in the regeneration of large bone defects and are currently extensively used. In the past decade, the field of biomineralization has delivered important new fundamental knowledge and techniques to better understand this fascinating phenomenon. This knowledge is also applied in the field of biomaterials, with the aim of bringing the composition and structure, and hence the performance, of synthetic bone graft substitutes even closer to those of the extracellular matrix of bone. The purpose of this progress report is to critically review advances in mimicking the extracellular matrix of bone as a strategy for development of new materials for bone regeneration. Lab-made biomimicking or bioinspired materials are discussed against the background of the natural extracellular matrix, starting from basic organic and inorganic components, and progressing into the building block of bone, the mineralized collagen fibril, and finally larger, 2D and 3D constructs. Moreover, bioactivity studies on state-of-the-art biomimicking materials are discussed. By addressing these different topics, an overview is given of how far the field has advanced toward a true bone-mimicking material, and some suggestions are offered for bridging current knowledge and technical gaps.
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Affiliation(s)
- Daniel de Melo Pereira
- MERLN Institute for Technology-Inspired Regenerative Medicine; Maastricht University; P.O. Box 616 6200 MD Maastricht The Netherlands
| | - Pamela Habibovic
- MERLN Institute for Technology-Inspired Regenerative Medicine; Maastricht University; P.O. Box 616 6200 MD Maastricht The Netherlands
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13
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Liu R, Becer CR, Screen HRC. Guided Cell Attachment via Aligned Electrospinning of Glycopolymers. Macromol Biosci 2018; 18:e1800293. [DOI: 10.1002/mabi.201800293] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/03/2018] [Revised: 09/17/2018] [Indexed: 12/24/2022]
Affiliation(s)
- Renjie Liu
- Polymer Chemistry LaboratorySchool of Engineering and Materials ScienceQueen Mary University of London E1 4NS London UK
| | - Caglar Remzi Becer
- Polymer Chemistry LaboratorySchool of Engineering and Materials ScienceQueen Mary University of London E1 4NS London UK
| | - Hazel R. C. Screen
- Institute of BioengineeringSchool of Engineering and Materials ScienceQueen Mary University of London E1 4NS London UK
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14
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Shen W, Das S, Vitale F, Richardson A, Ananthakrishnan A, Struzyna LA, Brown DP, Song N, Ramkumar M, Lucas T, Cullen DK, Litt B, Allen MG. Microfabricated intracortical extracellular matrix-microelectrodes for improving neural interfaces. MICROSYSTEMS & NANOENGINEERING 2018; 4:30. [PMID: 31057918 PMCID: PMC6220172 DOI: 10.1038/s41378-018-0030-5] [Citation(s) in RCA: 13] [Impact Index Per Article: 2.2] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 02/13/2018] [Revised: 05/30/2018] [Accepted: 08/05/2018] [Indexed: 05/30/2023]
Abstract
Intracortical neural microelectrodes, which can directly interface with local neural microcircuits with high spatial and temporal resolution, are critical for neuroscience research, emerging clinical applications, and brain computer interfaces (BCI). However, clinical applications of these devices remain limited mostly by their inability to mitigate inflammatory reactions and support dense neuronal survival at their interfaces. Herein we report the development of microelectrodes primarily composed of extracellular matrix (ECM) proteins, which act as a bio-compatible and an electrochemical interface between the microelectrodes and physiological solution. These ECM-microelectrodes are batch fabricated using a novel combination of micro-transfer-molding and excimer laser micromachining to exhibit final dimensions comparable to those of commercial silicon-based microelectrodes. These are further integrated with a removable insertion stent which aids in intracortical implantation. Results from electrochemical models and in vivo recordings from the rat's cortex indicate that ECM encapsulations have no significant effect on the electrochemical impedance characteristics of ECM-microelectrodes at neurologically relevant frequencies. ECM-microelectrodes are found to support a dense layer of neuronal somata and neurites on the electrode surface with high neuronal viability and exhibited markedly diminished neuroinflammation and glial scarring in early chronic experiments in rats.
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Affiliation(s)
- Wen Shen
- Krishna P. Singh Center for Nanotechnology, University of Pennsylvania, Philadelphia, PA 19104 USA
- Present Address: Department of Mechanical and Aerospace Engineering, University of Texas at Arlington, Arlington, TX 76019 USA
| | - Suradip Das
- Department of Neurosurgery, Perelman School of Medicine, University of Pennsylvania, Philadelphia, PA 19104 USA
| | - Flavia Vitale
- Department of Neurology, Perelman School of Medicine, University of Pennsylvania, Philadelphia, PA 19104 USA
| | - Andrew Richardson
- Department of Neurosurgery, Perelman School of Medicine, University of Pennsylvania, Philadelphia, PA 19104 USA
| | - Akshay Ananthakrishnan
- Department of Mechanical Engineering and Applied Mechanics, School of Engineering and Applied Science, University of Pennsylvania, Philadelphia, PA 19104 USA
| | - Laura A. Struzyna
- Department of Bioengineering, School of Engineering and Applied Science, University of Pennsylvania, Philadelphia, PA 19104 USA
| | - Daniel P. Brown
- Department of Neurosurgery, Perelman School of Medicine, University of Pennsylvania, Philadelphia, PA 19104 USA
| | - Naixin Song
- Department of Electrical and Systems Engineering, School of Engineering and Applied Science, University of Pennsylvania, Philadelphia, PA 19104 USA
| | - Murari Ramkumar
- Department of Materials Science and Engineering, School of Engineering and Applied Science, University of Pennsylvania, Philadelphia, PA 19104 USA
| | - Timothy Lucas
- Department of Neurosurgery, Perelman School of Medicine, University of Pennsylvania, Philadelphia, PA 19104 USA
| | - D. Kacy Cullen
- Department of Neurosurgery, Perelman School of Medicine, University of Pennsylvania, Philadelphia, PA 19104 USA
| | - Brian Litt
- Department of Neurology, Perelman School of Medicine, University of Pennsylvania, Philadelphia, PA 19104 USA
| | - Mark G. Allen
- Krishna P. Singh Center for Nanotechnology, University of Pennsylvania, Philadelphia, PA 19104 USA
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15
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Planz V, Seif S, Atchison JS, Vukosavljevic B, Sparenberg L, Kroner E, Windbergs M. Three-dimensional hierarchical cultivation of human skin cells on bio-adaptive hybrid fibers. Integr Biol (Camb) 2017; 8:775-84. [PMID: 27241237 DOI: 10.1039/c6ib00080k] [Citation(s) in RCA: 13] [Impact Index Per Article: 1.9] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/22/2023]
Abstract
The human skin comprises a complex multi-scale layered structure with hierarchical organization of different cells within the extracellular matrix (ECM). This supportive fiber-reinforced structure provides a dynamically changing microenvironment with specific topographical, mechanical and biochemical cell recognition sites to facilitate cell attachment and proliferation. Current advances in developing artificial matrices for cultivation of human cells concentrate on surface functionalizing of biocompatible materials with different biomolecules like growth factors to enhance cell attachment. However, an often neglected aspect for efficient modulation of cell-matrix interactions is posed by the mechanical characteristics of such artificial matrices. To address this issue, we fabricated biocompatible hybrid fibers simulating the complex biomechanical characteristics of native ECM in human skin. Subsequently, we analyzed interactions of such fibers with human skin cells focusing on the identification of key fiber characteristics for optimized cell-matrix interactions. We successfully identified the mediating effect of bio-adaptive elasto-plastic stiffness paired with hydrophilic surface properties as key factors for cell attachment and proliferation, thus elucidating the synergistic role of these parameters to induce cellular responses. Co-cultivation of fibroblasts and keratinocytes on such fiber mats representing the specific cells in dermis and epidermis resulted in a hierarchical organization of dermal and epidermal tissue layers. In addition, terminal differentiation of keratinocytes at the air interface was observed. These findings provide valuable new insights into cell behaviour in three-dimensional structures and cell-material interactions which can be used for rational development of bio-inspired functional materials for advanced biomedical applications.
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Affiliation(s)
- Viktoria Planz
- Department of Biopharmaceutics and Pharmaceutical Technology, Saarland University, Campus Building A 4.1, 66123 Saarbrücken, Germany.
| | - Salem Seif
- Department of Biopharmaceutics and Pharmaceutical Technology, Saarland University, Campus Building A 4.1, 66123 Saarbrücken, Germany. and PharmBioTec GmbH, Science Park 1, 66123 Saarbrücken, Germany
| | - Jennifer S Atchison
- INM - Leibniz Institute for New Materials, Campus Building D 2.2, 66123 Saarbrücken, Germany
| | - Branko Vukosavljevic
- Helmholtz Centre for Infection Research (HZI) and Helmholtz Institute for Pharmaceutical Research Saarland (HIPS), Department of Drug Delivery (DDEL), Campus Building E 8.1, 66123 Saarbrücken, Germany
| | - Lisa Sparenberg
- Department of Biopharmaceutics and Pharmaceutical Technology, Saarland University, Campus Building A 4.1, 66123 Saarbrücken, Germany.
| | - Elmar Kroner
- INM - Leibniz Institute for New Materials, Campus Building D 2.2, 66123 Saarbrücken, Germany
| | - Maike Windbergs
- Department of Biopharmaceutics and Pharmaceutical Technology, Saarland University, Campus Building A 4.1, 66123 Saarbrücken, Germany. and PharmBioTec GmbH, Science Park 1, 66123 Saarbrücken, Germany and Helmholtz Centre for Infection Research (HZI) and Helmholtz Institute for Pharmaceutical Research Saarland (HIPS), Department of Drug Delivery (DDEL), Campus Building E 8.1, 66123 Saarbrücken, Germany
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16
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Thomas B, McIntosh D, Fildes T, Smith L, Hargrave F, Islam M, Thompson T, Layfield R, Scott D, Shaw B, Burrell CL, Gonzalez S, Taylor S. Second-harmonic generation imaging of collagen in ancient bone. Bone Rep 2017; 7:137-144. [PMID: 29124084 PMCID: PMC5671394 DOI: 10.1016/j.bonr.2017.10.005] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 06/16/2017] [Revised: 09/27/2017] [Accepted: 10/24/2017] [Indexed: 12/01/2022] Open
Abstract
Second-harmonic generation imaging (SHG) captures triple helical collagen molecules near tissue surfaces. Biomedical research routinely utilizes various imaging software packages to quantify SHG signals for collagen content and distribution estimates in modern tissue samples including bone. For the first time using SHG, samples of modern, medieval, and ice age bones were imaged to test the applicability of SHG to ancient bone from a variety of ages, settings, and taxa. Four independent techniques including Raman spectroscopy, FTIR spectroscopy, radiocarbon dating protocols, and mass spectrometry-based protein sequencing, confirm the presence of protein, consistent with the hypothesis that SHG imaging detects ancient bone collagen. These results suggest that future studies have the potential to use SHG imaging to provide new insights into the composition of ancient bone, to characterize ancient bone disorders, to investigate collagen preservation within and between various taxa, and to monitor collagen decay regimes in different depositional environments. Second-Harmonic Generation (SHG) confocal laser scanning microscopy is used to investigate collagen remnants in ancient bone. Four independent techniques confirm the presence of collagen remnants in ancient bone samples with SHG-detected collagen. SHG imaging can visualise collagen remnants in ancient bone of various taxa, ages, and settings.
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Affiliation(s)
- B Thomas
- Mass Spectrometry Research Group, University of Liverpool, Brownlow Hill, Liverpool L69 3GJ, UK
| | - D McIntosh
- Mass Spectrometry Research Group, University of Liverpool, Brownlow Hill, Liverpool L69 3GJ, UK
| | - T Fildes
- Mass Spectrometry Research Group, University of Liverpool, Brownlow Hill, Liverpool L69 3GJ, UK.,Norton Priory Museum, Runcorn WA7 1SX, UK
| | - L Smith
- Norton Priory Museum, Runcorn WA7 1SX, UK
| | - F Hargrave
- Norton Priory Museum, Runcorn WA7 1SX, UK
| | - M Islam
- School of Science and Engineering, Teesside University, Borough Road, Middlesbrough TS1 3BA, UK
| | - T Thompson
- School of Science and Engineering, Teesside University, Borough Road, Middlesbrough TS1 3BA, UK
| | - R Layfield
- School of Life Sciences, University of Nottingham Medical School, Nottingham NG9 6HZ, UK
| | - D Scott
- School of Life Sciences, University of Nottingham Medical School, Nottingham NG9 6HZ, UK
| | - B Shaw
- School of Life Sciences, University of Nottingham Medical School, Nottingham NG9 6HZ, UK
| | - C L Burrell
- Liverpool John Moores University, Liverpool, UK
| | - S Gonzalez
- Liverpool John Moores University, Liverpool, UK
| | - S Taylor
- Mass Spectrometry Research Group, University of Liverpool, Brownlow Hill, Liverpool L69 3GJ, UK
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17
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Clay NE, Shin K, Ozcelikkale A, Lee MK, Rich MH, Kim DH, Han B, Kong H. Modulation of Matrix Softness and Interstitial Flow for 3D Cell Culture Using a Cell-Microenvironment-on-a-Chip System. ACS Biomater Sci Eng 2016; 2:1968-1975. [PMID: 33440532 DOI: 10.1021/acsbiomaterials.6b00379] [Citation(s) in RCA: 11] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/18/2022]
Abstract
In the past several decades, significant efforts have been devoted to recapitulating the in vivo tissue microenvironment within an in vitro platform. However, it is still challenging to recreate de novo tissue with physiologically relevant matrix properties and fluid flow. To this end, this study demonstrates a method to independently tailor matrix stiffness and interstitial fluid flow using a cell-microenvironment-on-a-chip (C-MOC) platform. Collagen-polyethylene glycol gels tailored to present controlled stiffness and hydraulic conductivity were fabricated in a microfluidic chip. The chip was assembled to continuously create a steady flow of media through the gel. In the C-MOC platform, interstitial flow mitigated the effects of matrix softness on breast cancer cell behavior, according to an immunostaining-based analysis of estrogen receptor-α (ER-α), integrin β1, and E-cadherin. This advanced cell culture platform serves to engineer tissue similar to in vitro tissue and contribute to better understanding and regulating of the biological roles of extracellular microenvironments.
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Affiliation(s)
- Nicholas Edwin Clay
- Department of Chemical and Biomolecular Engineering, University of Illinois at Urbana-Champaign, 607 S. Mathews Avenue, 163 Davenport Hall, Urbana, Illinois 61801, United States
| | - Kyeonggon Shin
- School of Mechanical Engineering, Birck Nanotechnology Center, Purdue University, 585 Purdue Mall, West Lafayette, Indiana 47907, United States
| | - Altug Ozcelikkale
- School of Mechanical Engineering, Birck Nanotechnology Center, Purdue University, 585 Purdue Mall, West Lafayette, Indiana 47907, United States
| | - Min Kyung Lee
- Department of Chemical and Biomolecular Engineering, University of Illinois at Urbana-Champaign, 607 S. Mathews Avenue, 163 Davenport Hall, Urbana, Illinois 61801, United States
| | - Max H Rich
- Department of Chemical and Biomolecular Engineering, University of Illinois at Urbana-Champaign, 607 S. Mathews Avenue, 163 Davenport Hall, Urbana, Illinois 61801, United States
| | - Dong Hyun Kim
- Department of Human and Culture Convergence Technology R&BD Group, Korea Institute of Industrial Technology, Ansan-si, Gyeonggi-do 426-910, South Korea
| | - Bumsoo Han
- School of Mechanical Engineering, Birck Nanotechnology Center, Purdue University, 585 Purdue Mall, West Lafayette, Indiana 47907, United States
| | - Hyunjoon Kong
- Department of Chemical and Biomolecular Engineering, University of Illinois at Urbana-Champaign, 607 S. Mathews Avenue, 163 Davenport Hall, Urbana, Illinois 61801, United States
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18
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Miranda-Nieves D, Chaikof EL. Collagen and Elastin Biomaterials for the Fabrication of Engineered Living Tissues. ACS Biomater Sci Eng 2016; 3:694-711. [PMID: 33440491 DOI: 10.1021/acsbiomaterials.6b00250] [Citation(s) in RCA: 91] [Impact Index Per Article: 11.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/08/2023]
Abstract
Collagen and elastin represent the two most predominant proteins in the body and are responsible for modulating important biological and mechanical properties. Thus, the focus of this review is the use of collagen and elastin as biomaterials for the fabrication of living tissues. Considering the importance of both biomaterials, we first propose the notion that many tissues in the human body represent a reinforced composite of collagen and elastin. In the rest of the review, collagen and elastin biosynthesis and biophysics, as well as molecular sources and biomaterial fabrication methodologies, including casting, fiber spinning, and bioprinting, are discussed. Finally, we summarize the current attempts to fabricate a subset of living tissues and, based on biochemical and biomechanical considerations, suggest that future tissue-engineering efforts consider direct incorporation of collagen and elastin biomaterials.
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Affiliation(s)
- David Miranda-Nieves
- Division of Health Sciences and Technology, Massachusetts Institute of Technology, Cambridge, Massachusetts 02139, United States.,Department of Surgery, Harvard Medical School, Beth Israel Deaconess Medical Center, Boston, Massachusetts 02215, United States
| | - Elliot L Chaikof
- Division of Health Sciences and Technology, Massachusetts Institute of Technology, Cambridge, Massachusetts 02139, United States.,Department of Surgery, Harvard Medical School, Beth Israel Deaconess Medical Center, Boston, Massachusetts 02215, United States.,Wyss Institute for Biologically Inspired Engineering, Harvard University, Boston, Massachusetts 02215, United States
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19
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Wronska MA, O'Connor IB, Tilbury MA, Srivastava A, Wall JG. Adding Functions to Biomaterial Surfaces through Protein Incorporation. ADVANCED MATERIALS (DEERFIELD BEACH, FLA.) 2016; 28:5485-5508. [PMID: 27164952 DOI: 10.1002/adma.201504310] [Citation(s) in RCA: 45] [Impact Index Per Article: 5.6] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 09/02/2015] [Revised: 03/16/2016] [Indexed: 06/05/2023]
Abstract
The concept of biomaterials has evolved from one of inert mechanical supports with a long-term, biologically inactive role in the body into complex matrices that exhibit selective cell binding, promote proliferation and matrix production, and may ultimately become replaced by newly generated tissues in vivo. Functionalization of material surfaces with biomolecules is critical to their ability to evade immunorecognition, interact productively with surrounding tissues and extracellular matrix, and avoid bacterial colonization. Antibody molecules and their derived fragments are commonly immobilized on materials to mediate coating with specific cell types in fields such as stent endothelialization and drug delivery. The incorporation of growth factors into biomaterials has found application in promoting and accelerating bone formation in osteogenerative and related applications. Peptides and extracellular matrix proteins can impart biomolecule- and cell-specificities to materials while antimicrobial peptides have found roles in preventing biofilm formation on devices and implants. In this progress report, we detail developments in the use of diverse proteins and peptides to modify the surfaces of hard biomaterials in vivo and in vitro. Chemical approaches to immobilizing active biomolecules are presented, as well as platform technologies for isolation or generation of natural or synthetic molecules suitable for biomaterial functionalization.
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Affiliation(s)
- Małgorzata A Wronska
- Microbiology and Center for Research in Medical Devices (CÚRAM), National University of Ireland, Galway, Ireland
| | - Iain B O'Connor
- Microbiology and Center for Research in Medical Devices (CÚRAM), National University of Ireland, Galway, Ireland
| | - Maura A Tilbury
- Microbiology and Center for Research in Medical Devices (CÚRAM), National University of Ireland, Galway, Ireland
| | - Akshay Srivastava
- Microbiology and Center for Research in Medical Devices (CÚRAM), National University of Ireland, Galway, Ireland
| | - J Gerard Wall
- Microbiology and Center for Research in Medical Devices (CÚRAM), National University of Ireland, Galway, Ireland
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20
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Ma Q, Cheng H, Jang KI, Luan H, Hwang KC, Rogers JA, Huang Y, Zhang Y. A nonlinear mechanics model of bio-inspired hierarchical lattice materials consisting of horseshoe microstructures. JOURNAL OF THE MECHANICS AND PHYSICS OF SOLIDS 2016; 90:179-202. [PMID: 27087704 PMCID: PMC4831080 DOI: 10.1016/j.jmps.2016.02.012] [Citation(s) in RCA: 47] [Impact Index Per Article: 5.9] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/04/2023]
Abstract
Development of advanced synthetic materials that can mimic the mechanical properties of non-mineralized soft biological materials has important implications in a wide range of technologies. Hierarchical lattice materials constructed with horseshoe microstructures belong to this class of bio-inspired synthetic materials, where the mechanical responses can be tailored to match the nonlinear J-shaped stress-strain curves of human skins. The underlying relations between the J-shaped stress-strain curves and their microstructure geometry are essential in designing such systems for targeted applications. Here, a theoretical model of this type of hierarchical lattice material is developed by combining a finite deformation constitutive relation of the building block (i.e., horseshoe microstructure), with the analyses of equilibrium and deformation compatibility in the periodical lattices. The nonlinear J-shaped stress-strain curves and Poisson ratios predicted by this model agree very well with results of finite element analyses (FEA) and experiment. Based on this model, analytic solutions were obtained for some key mechanical quantities, e.g., elastic modulus, Poisson ratio, peak modulus, and critical strain around which the tangent modulus increases rapidly. A negative Poisson effect is revealed in the hierarchical lattice with triangular topology, as opposed to a positive Poisson effect in hierarchical lattices with Kagome and honeycomb topologies. The lattice topology is also found to have a strong influence on the stress-strain curve. For the three isotropic lattice topologies (triangular, Kagome and honeycomb), the hierarchical triangular lattice material renders the sharpest transition in the stress-strain curve and relative high stretchability, given the same porosity and arc angle of horseshoe microstructure. Furthermore, a demonstrative example illustrates the utility of the developed model in the rapid optimization of hierarchical lattice materials for reproducing the desired stress-strain curves of human skins. This study provides theoretical guidelines for future designs of soft bio-mimetic materials with hierarchical lattice constructions.
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Affiliation(s)
- Qiang Ma
- Center for Mechanics and Materials, AML, Department of Engineering Mechanics, Tsinghua University, Beijing 100084, P.R. China
| | - Huanyu Cheng
- Department of Engineering Science and Mechanics, The Pennsylvania State University, University Park, Pennsylvania 16802, USA
| | - Kyung-In Jang
- Department of Materials Science and Engineering and Frederick Seitz Materials Research Laboratory, University of Illinois at Urbana-Champaign, Urbana, Illinois 61801, USA
| | - Haiwen Luan
- Department of Civil and Environmental Engineering; Department of Mechanical Engineering; Department of Materials Science and Engineering; Center for Engineering and Health; Skin Disease Research Center; Northwestern University, Evanston, IL 60208, USA
| | - Keh-Chih Hwang
- Center for Mechanics and Materials, AML, Department of Engineering Mechanics, Tsinghua University, Beijing 100084, P.R. China
| | - John A. Rogers
- Department of Materials Science and Engineering and Frederick Seitz Materials Research Laboratory, University of Illinois at Urbana-Champaign, Urbana, Illinois 61801, USA
| | - Yonggang Huang
- Department of Civil and Environmental Engineering; Department of Mechanical Engineering; Department of Materials Science and Engineering; Center for Engineering and Health; Skin Disease Research Center; Northwestern University, Evanston, IL 60208, USA
| | - Yihui Zhang
- Center for Mechanics and Materials, AML, Department of Engineering Mechanics, Tsinghua University, Beijing 100084, P.R. China
- To whom correspondence should be addressed:
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21
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Jang KI, Chung HU, Xu S, Lee CH, Luan H, Jeong J, Cheng H, Kim GT, Han SY, Lee JW, Kim J, Cho M, Miao F, Yang Y, Jung HN, Flavin M, Liu H, Kong GW, Yu KJ, Rhee SI, Chung J, Kim B, Kwak JW, Yun MH, Kim JY, Song YM, Paik U, Zhang Y, Huang Y, Rogers JA. Soft network composite materials with deterministic and bio-inspired designs. Nat Commun 2015; 6:6566. [PMID: 25782446 PMCID: PMC4383007 DOI: 10.1038/ncomms7566] [Citation(s) in RCA: 163] [Impact Index Per Article: 18.1] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/28/2014] [Accepted: 02/06/2015] [Indexed: 12/11/2022] Open
Abstract
Hard and soft structural composites found in biology provide inspiration for the design of advanced synthetic materials. Many examples of bio-inspired hard materials can be found in the literature; far less attention has been devoted to soft systems. Here we introduce deterministic routes to low-modulus thin film materials with stress/strain responses that can be tailored precisely to match the non-linear properties of biological tissues, with application opportunities that range from soft biomedical devices to constructs for tissue engineering. The approach combines a low-modulus matrix with an open, stretchable network as a structural reinforcement that can yield classes of composites with a wide range of desired mechanical responses, including anisotropic, spatially heterogeneous, hierarchical and self-similar designs. Demonstrative application examples in thin, skin-mounted electrophysiological sensors with mechanics precisely matched to the human epidermis and in soft, hydrogel-based vehicles for triggered drug release suggest their broad potential uses in biomedical devices.
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Affiliation(s)
- Kyung-In Jang
- Department of Materials Science and Engineering, Frederick Seitz Materials Research Laboratory, University of Illinois, Urbana-Champaign, Urbana, Illinois 61801, USA
| | - Ha Uk Chung
- Department of Materials Science and Engineering, Frederick Seitz Materials Research Laboratory, University of Illinois, Urbana-Champaign, Urbana, Illinois 61801, USA
| | - Sheng Xu
- Department of Materials Science and Engineering, Frederick Seitz Materials Research Laboratory, University of Illinois, Urbana-Champaign, Urbana, Illinois 61801, USA
| | - Chi Hwan Lee
- Department of Materials Science and Engineering, Frederick Seitz Materials Research Laboratory, University of Illinois, Urbana-Champaign, Urbana, Illinois 61801, USA
| | - Haiwen Luan
- Department of Civil and Environmental Engineering, Department of Mechanical Engineering, Center for Engineering and Health and Skin Disease Research Center, Northwestern University, Evanston, Illinois 60208, USA
| | - Jaewoong Jeong
- Department of Electrical, Computer and Energy Engineering, University of Colorado, Boulder, Colorado 80309, USA
| | - Huanyu Cheng
- Department of Civil and Environmental Engineering, Department of Mechanical Engineering, Center for Engineering and Health and Skin Disease Research Center, Northwestern University, Evanston, Illinois 60208, USA
| | - Gwang-Tae Kim
- Department of Materials Science and Engineering, Frederick Seitz Materials Research Laboratory, University of Illinois, Urbana-Champaign, Urbana, Illinois 61801, USA
| | - Sang Youn Han
- Department of Materials Science and Engineering, Frederick Seitz Materials Research Laboratory, University of Illinois, Urbana-Champaign, Urbana, Illinois 61801, USA
- Samsung Display Co. Display R&D Center, Yongin-city, Gyeongki-do 446–711, Republic of Korea
| | - Jung Woo Lee
- Department of Materials Science and Engineering, Frederick Seitz Materials Research Laboratory, University of Illinois, Urbana-Champaign, Urbana, Illinois 61801, USA
- Department of Material Science and Engineering, Department of Energy Engineering, Hanyang University, Seoul 133-791, Republic of Korea
| | - Jeonghyun Kim
- Department of Materials Science and Engineering, Frederick Seitz Materials Research Laboratory, University of Illinois, Urbana-Champaign, Urbana, Illinois 61801, USA
- Department of Material Science and Engineering, Department of Energy Engineering, Hanyang University, Seoul 133-791, Republic of Korea
| | - Moongee Cho
- Department of Materials Science and Engineering, Frederick Seitz Materials Research Laboratory, University of Illinois, Urbana-Champaign, Urbana, Illinois 61801, USA
| | - Fuxing Miao
- Department of Civil and Environmental Engineering, Department of Mechanical Engineering, Center for Engineering and Health and Skin Disease Research Center, Northwestern University, Evanston, Illinois 60208, USA
- Department of Mechanical Engineering and Mechanics, Ningbo University, Ningbo 315211, China
| | - Yiyuan Yang
- Department of Materials Science and Engineering, Frederick Seitz Materials Research Laboratory, University of Illinois, Urbana-Champaign, Urbana, Illinois 61801, USA
| | - Han Na Jung
- Department of Materials Science and Engineering, Frederick Seitz Materials Research Laboratory, University of Illinois, Urbana-Champaign, Urbana, Illinois 61801, USA
| | - Matthew Flavin
- Department of Materials Science and Engineering, Frederick Seitz Materials Research Laboratory, University of Illinois, Urbana-Champaign, Urbana, Illinois 61801, USA
| | - Howard Liu
- Department of Materials Science and Engineering, Frederick Seitz Materials Research Laboratory, University of Illinois, Urbana-Champaign, Urbana, Illinois 61801, USA
| | - Gil Woo Kong
- Department of Materials Science and Engineering, Frederick Seitz Materials Research Laboratory, University of Illinois, Urbana-Champaign, Urbana, Illinois 61801, USA
| | - Ki Jun Yu
- Department of Materials Science and Engineering, Frederick Seitz Materials Research Laboratory, University of Illinois, Urbana-Champaign, Urbana, Illinois 61801, USA
| | - Sang Il Rhee
- Department of Materials Science and Engineering, Frederick Seitz Materials Research Laboratory, University of Illinois, Urbana-Champaign, Urbana, Illinois 61801, USA
| | - Jeahoon Chung
- Department of Materials Science and Engineering, Frederick Seitz Materials Research Laboratory, University of Illinois, Urbana-Champaign, Urbana, Illinois 61801, USA
| | - Byunggik Kim
- Department of Materials Science and Engineering, Frederick Seitz Materials Research Laboratory, University of Illinois, Urbana-Champaign, Urbana, Illinois 61801, USA
| | - Jean Won Kwak
- Department of Materials Science and Engineering, Frederick Seitz Materials Research Laboratory, University of Illinois, Urbana-Champaign, Urbana, Illinois 61801, USA
| | - Myoung Hee Yun
- Department of Materials Science and Engineering, Frederick Seitz Materials Research Laboratory, University of Illinois, Urbana-Champaign, Urbana, Illinois 61801, USA
- School of Energy and Chemical Engineering, Ulsan National Institute Science and Technology (UNIST), Ulsan 689-798, Republic of Korea
| | - Jin Young Kim
- School of Energy and Chemical Engineering, Ulsan National Institute Science and Technology (UNIST), Ulsan 689-798, Republic of Korea
| | - Young Min Song
- Department of Electronic Engineering, Biomedical Research Institute, Pusan National University, Geumjeong-gu, Busan 609-735, Republic of Korea
| | - Ungyu Paik
- Department of Material Science and Engineering, Department of Energy Engineering, Hanyang University, Seoul 133-791, Republic of Korea
| | - Yihui Zhang
- Department of Civil and Environmental Engineering, Department of Mechanical Engineering, Center for Engineering and Health and Skin Disease Research Center, Northwestern University, Evanston, Illinois 60208, USA
- Center for Mechanics and Materials, Tsinghua University, Beijing 100084, China
| | - Yonggang Huang
- Department of Civil and Environmental Engineering, Department of Mechanical Engineering, Center for Engineering and Health and Skin Disease Research Center, Northwestern University, Evanston, Illinois 60208, USA
| | - John A. Rogers
- Department of Materials Science and Engineering, Frederick Seitz Materials Research Laboratory, University of Illinois, Urbana-Champaign, Urbana, Illinois 61801, USA
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