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Singhal R, Sarangi MK, Rath G. Injectable Hydrogels: A Paradigm Tailored with Design, Characterization, and Multifaceted Approaches. Macromol Biosci 2024; 24:e2400049. [PMID: 38577905 DOI: 10.1002/mabi.202400049] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/05/2024] [Revised: 03/22/2024] [Indexed: 04/06/2024]
Abstract
Biomaterials denoting self-healing and versatile structural integrity are highly curious in the biomedicine segment. The injectable and/or printable 3D printing technology is explored in a few decades back, which can alter their dimensions temporarily under shear stress, showing potential healing/recovery tendency with patient-specific intervention toward the development of personalized medicine. Thus, self-healing injectable hydrogels (IHs) are stunning toward developing a paradigm for tissue regeneration. This review comprises the designing of IHs, rheological characterization and stability, several benchmark consequences for self-healing IHs, their translation into tissue regeneration of specific types, applications of IHs in biomedical such as anticancer and immunomodulation, wound healing and tissue/bone regeneration, antimicrobial potentials, drugs, gene and vaccine delivery, ocular delivery, 3D printing, cosmeceuticals, and photothermal therapy as well as in other allied avenues like agriculture, aerospace, electronic/electrical industries, coating approaches, patents associated with therapeutic/nontherapeutic avenues, and numerous futuristic challenges and solutions.
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Affiliation(s)
- Rishika Singhal
- Department of Pharmaceutics, Amity Institute of Pharmacy, Amity University, Malhaur Railway Station Road, Gomti Nagar, Lucknow, Uttar Pradesh, 201313, India
| | - Manoj Kumar Sarangi
- Department of Pharmaceutics, Amity Institute of Pharmacy, Amity University, Malhaur Railway Station Road, Gomti Nagar, Lucknow, Uttar Pradesh, 201313, India
| | - Goutam Rath
- Department of Pharmaceutics, School of Pharmaceutical Sciences, Siksha 'O' Anusandhan University, Bhubaneswar, Odisha, 751030, India
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2
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Bertsch P, Diba M, Mooney DJ, Leeuwenburgh SCG. Self-Healing Injectable Hydrogels for Tissue Regeneration. Chem Rev 2022; 123:834-873. [PMID: 35930422 PMCID: PMC9881015 DOI: 10.1021/acs.chemrev.2c00179] [Citation(s) in RCA: 177] [Impact Index Per Article: 88.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/06/2023]
Abstract
Biomaterials with the ability to self-heal and recover their structural integrity offer many advantages for applications in biomedicine. The past decade has witnessed the rapid emergence of a new class of self-healing biomaterials commonly termed injectable, or printable in the context of 3D printing. These self-healing injectable biomaterials, mostly hydrogels and other soft condensed matter based on reversible chemistry, are able to temporarily fluidize under shear stress and subsequently recover their original mechanical properties. Self-healing injectable hydrogels offer distinct advantages compared to traditional biomaterials. Most notably, they can be administered in a locally targeted and minimally invasive manner through a narrow syringe without the need for invasive surgery. Their moldability allows for a patient-specific intervention and shows great prospects for personalized medicine. Injected hydrogels can facilitate tissue regeneration in multiple ways owing to their viscoelastic and diffusive nature, ranging from simple mechanical support, spatiotemporally controlled delivery of cells or therapeutics, to local recruitment and modulation of host cells to promote tissue regeneration. Consequently, self-healing injectable hydrogels have been at the forefront of many cutting-edge tissue regeneration strategies. This study provides a critical review of the current state of self-healing injectable hydrogels for tissue regeneration. As key challenges toward further maturation of this exciting research field, we identify (i) the trade-off between the self-healing and injectability of hydrogels vs their physical stability, (ii) the lack of consensus on rheological characterization and quantitative benchmarks for self-healing injectable hydrogels, particularly regarding the capillary flow in syringes, and (iii) practical limitations regarding translation toward therapeutically effective formulations for regeneration of specific tissues. Hence, here we (i) review chemical and physical design strategies for self-healing injectable hydrogels, (ii) provide a practical guide for their rheological analysis, and (iii) showcase their applicability for regeneration of various tissues and 3D printing of complex tissues and organoids.
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Affiliation(s)
- Pascal Bertsch
- Department
of Dentistry-Regenerative Biomaterials, Radboud Institute for Molecular
Life Sciences, Radboud University Medical
Center, 6525 EX Nijmegen, The Netherlands
| | - Mani Diba
- Department
of Dentistry-Regenerative Biomaterials, Radboud Institute for Molecular
Life Sciences, Radboud University Medical
Center, 6525 EX Nijmegen, The Netherlands,John
A. Paulson School of Engineering and Applied Sciences, Harvard University, Cambridge, Massachusetts 02138, United States,Wyss
Institute for Biologically Inspired Engineering at Harvard University, Boston, Massachusetts 02115, United States
| | - David J. Mooney
- John
A. Paulson School of Engineering and Applied Sciences, Harvard University, Cambridge, Massachusetts 02138, United States,Wyss
Institute for Biologically Inspired Engineering at Harvard University, Boston, Massachusetts 02115, United States
| | - Sander C. G. Leeuwenburgh
- Department
of Dentistry-Regenerative Biomaterials, Radboud Institute for Molecular
Life Sciences, Radboud University Medical
Center, 6525 EX Nijmegen, The Netherlands,
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3
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Adhikari J, Perwez MS, Das A, Saha P. Development of hydroxyapatite reinforced alginate–chitosan based printable biomaterial-ink. ACTA ACUST UNITED AC 2021. [DOI: 10.1016/j.nanoso.2020.100630] [Citation(s) in RCA: 20] [Impact Index Per Article: 6.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/12/2023]
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4
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Catoira MC, González-Payo J, Fusaro L, Ramella M, Boccafoschi F. Natural hydrogels R&D process: technical and regulatory aspects for industrial implementation. JOURNAL OF MATERIALS SCIENCE. MATERIALS IN MEDICINE 2020; 31:64. [PMID: 32696261 PMCID: PMC7374448 DOI: 10.1007/s10856-020-06401-w] [Citation(s) in RCA: 11] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 08/30/2019] [Accepted: 07/08/2020] [Indexed: 05/17/2023]
Abstract
Since hydrogel therapies have been introduced into clinic treatment procedures, the biomedical industry has to face the technology transfer and the scale-up of the processes. This will be key in the roadmap of the new technology implementation. Transfer technology and scale-up are already known for some applications but other applications, such as 3D printing, are still challenging. Decellularized tissues offer a lot of advantages when compared to other natural gels, for example they display enhanced biological properties, due to their ability to preserve natural molecules. For this reason, even though their use as a source for bioinks represents a challenge for the scale-up process, it is very important to consider the advantages that originate with overcoming this challenge. Therefore, many aspects that influence the scaling of the industrial process should be considered, like the addition of drugs or cells to the hydrogel, also, the gelling process is important to determine the chemical and physical parameters that must be controlled in order to guarantee a successful process. Legal aspects are also crucial when carrying out the scale-up of the process since they determine the industrial implementation success from the regulatory point of view. In this context, the new law Regulation (EU) 2017/745 on biomedical devices will be considered. This review summarizes the different aspects, including the legal ones, that should be considered when scaling up hydrogels of natural origin, in order to balance these different aspects and to optimize the costs in terms of raw materials and engine.
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Affiliation(s)
- Marta Calvo Catoira
- Center for Translational Research on Autoimmune & Allergic Diseases-CAAD, 28100, Novara, Italy
- Tissuegraft srl, 28100, Novara, Italy
| | - Javier González-Payo
- Telecomunicación, Department of Signal Theory and Communications, University of Vigo, 36310, Vigo, Spain
| | - Luca Fusaro
- Tissuegraft srl, 28100, Novara, Italy
- Department of Health Sciences, University of Piemonte Orientale, 28100, Novara, Italy
| | | | - Francesca Boccafoschi
- Center for Translational Research on Autoimmune & Allergic Diseases-CAAD, 28100, Novara, Italy.
- Tissuegraft srl, 28100, Novara, Italy.
- Department of Health Sciences, University of Piemonte Orientale, 28100, Novara, Italy.
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5
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Swelling and rheological study of calcium phosphate filled bacterial cellulose‐based hydrogel scaffold. J Appl Polym Sci 2019. [DOI: 10.1002/app.48522] [Citation(s) in RCA: 11] [Impact Index Per Article: 2.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/28/2023]
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Lewis L, Hatzikiriakos SG, Hamad WY, MacLachlan MJ. Freeze-Thaw Gelation of Cellulose Nanocrystals. ACS Macro Lett 2019; 8:486-491. [PMID: 35619375 DOI: 10.1021/acsmacrolett.9b00140] [Citation(s) in RCA: 32] [Impact Index Per Article: 6.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
Abstract
Gels are attractive for applications in drug delivery, tissue engineering, and 3D printing. Here, physical colloidal gels were prepared by freeze-thaw (FT) cycling of cellulose nanocrystal (CNC) suspensions. The aggregation of CNCs was driven by the physical confinement of CNCs between growing ice crystal domains. FT cycling was employed to form larger aggregates of CNCs without changing the surface chemistry or ionic strength of the suspensions. Gelation of CNC suspensions by FT cycling was demonstrated in water and other polar solvents. The mechanical and structural properties of the gels were investigated using rheometry, electron microscopy, X-ray diffraction, and dynamic light scattering. We found that the rheology could be tuned by varying the freezing time, the number of FT cycles, and concentration of CNCs in suspension.
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Affiliation(s)
- Lev Lewis
- Department of Chemistry, University of British Columbia, 2036 Main Mall, Vancouver, British Columbia V6T 1Z1, Canada
| | - Savvas G. Hatzikiriakos
- Chemical and Biological Engineering, University of British Columbia, Vancouver, British Columbia V6T 1Z3, Canada
| | - Wadood Y. Hamad
- Bioproducts Innovation Centre of Excellence, FPInnovations, 2665 East Mall, Vancouver, British Columbia V6T 1Z4, Canada
| | - Mark J. MacLachlan
- Department of Chemistry, University of British Columbia, 2036 Main Mall, Vancouver, British Columbia V6T 1Z1, Canada
- Stewart Blusson Quantum Matter Institute, University of British Columbia, 2355 East Mall, Vancouver, British Columbia V6T 1Z4, Canada
- WPI Nano Life Science Institute, Kanazawa University, Kanazawa 920-1192, Japan
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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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Wei P, Yuan Z, Cai Q, Mao J, Yang X. Bioresorbable Microspheres with Surface-Loaded Nanosilver and Apatite as Dual-Functional Injectable Cell Carriers for Bone Regeneration. Macromol Rapid Commun 2018; 39:e1800062. [DOI: 10.1002/marc.201800062] [Citation(s) in RCA: 17] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/24/2018] [Revised: 03/27/2018] [Indexed: 12/29/2022]
Affiliation(s)
- Pengfei Wei
- State Key Laboratory of Organic-Inorganic Composites; Beijing Laboratory of Biomedical Materials; Beijing University of Chemical Technology; Beijing 100029 P. R. China
| | - Zuoying Yuan
- State Key Laboratory of Organic-Inorganic Composites; Beijing Laboratory of Biomedical Materials; Beijing University of Chemical Technology; Beijing 100029 P. R. China
| | - Qing Cai
- State Key Laboratory of Organic-Inorganic Composites; Beijing Laboratory of Biomedical Materials; Beijing University of Chemical Technology; Beijing 100029 P. R. China
| | - Jianping Mao
- Department of Spine Surgery; Beijing Jishuitan Hospital; Beijing 100035 P. R. China
| | - Xiaoping Yang
- State Key Laboratory of Organic-Inorganic Composites; Beijing Laboratory of Biomedical Materials; Beijing University of Chemical Technology; Beijing 100029 P. R. China
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9
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Townsend JM, Dennis SC, Whitlow J, Feng Y, Wang J, Andrews B, Nudo RJ, Detamore MS, Berkland CJ. Colloidal Gels with Extracellular Matrix Particles and Growth Factors for Bone Regeneration in Critical Size Rat Calvarial Defects. AAPS JOURNAL 2017; 19:703-711. [PMID: 28138909 DOI: 10.1208/s12248-017-0045-0] [Citation(s) in RCA: 29] [Impact Index Per Article: 4.1] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 10/21/2016] [Accepted: 01/09/2017] [Indexed: 12/30/2022]
Abstract
Colloidal gels encapsulating natural materials and exhibiting paste-like properties for placement are promising for filling complex geometries in craniofacial bone regeneration applications. Colloidal materials have demonstrated modest clinical outcomes as bone substitutes in orthopedic applications, but limited success in craniofacial applications. As such, development of a novel colloidal gel will fill a void in commercially available products for use in craniofacial reconstruction. One likely application for this technology is cranial reconstruction. Currently, traumatic brain injury (TBI) is often treated with a hemi-craniectomy, a procedure in which half the cranium is removed to allow the injured brain to swell and herniate beyond the enclosed cranial vault. The use of colloidal gels would allow for the design of a pliable material capable of expansion during brain swelling and facilitate cranial bone regeneration alleviating the need for a second surgery to replace the previously removed hemi-cranium. In the current study, colloidal nanoparticles of hydroxyapatite (HAp), demineralized bone matrix (DBM), and decellularized cartilage (DCC) were combined with hyaluronic acid (HA) to form colloidal gels with desirable rheological properties ([Formula: see text] ≥ 100 Pa). BMP-2 and VEGF growth factors were included to assess extracellular matrix (ECM) contribution of DBM and DCC. The HA-HAp (BMP-2) and HA-HAp-DCC group had 89 and 82% higher bone regeneration compared to the sham group, respectively (p < 0.01). Material retention issues observed may be alleviated by implementing chemical crosslinking. Overall, DCC may be a promising material for bone regeneration in general, and colloidal gels may hold significant potential in craniofacial applications.
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Affiliation(s)
- Jakob M Townsend
- Stephenson School of Biomedical Engineering, University of Oklahoma, Norman, Oklahoma, 73019, USA
| | - S Connor Dennis
- Bioengineering Program, University of Kansas, Lawrence, Kansas, 66047, USA
| | - Jonathan Whitlow
- Bioengineering Program, University of Kansas, Lawrence, Kansas, 66047, USA
| | - Yi Feng
- Department of Orthopedic Surgery, University of Kansas Medical Center, Kansas City, Kansas, 66160, USA
| | - Jinxi Wang
- Department of Orthopedic Surgery, University of Kansas Medical Center, Kansas City, Kansas, 66160, USA
| | - Brian Andrews
- Department of Plastic Surgery, University of Kansas Medical Center, Kansas City, Kansas, 66160, USA
| | - Randolph J Nudo
- Department of Rehabilitation Medicine, University of Kansas Medical Center, Kansas City, Kansas, 66160, USA
| | - Michael S Detamore
- Stephenson School of Biomedical Engineering, University of Oklahoma, Norman, Oklahoma, 73019, USA
| | - Cory J Berkland
- Bioengineering Program, University of Kansas, Lawrence, Kansas, 66047, USA. .,Department of Pharmaceutical Chemistry, University of Kansas, Lawrence, Kansas, 66047, USA.
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10
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Dennis SC, Whitlow J, Detamore MS, Kieweg SL, Berkland CJ. Hyaluronic-Acid-Hydroxyapatite Colloidal Gels Combined with Micronized Native ECM as Potential Bone Defect Fillers. LANGMUIR : THE ACS JOURNAL OF SURFACES AND COLLOIDS 2017; 33:206-218. [PMID: 28005380 DOI: 10.1021/acs.langmuir.6b03529] [Citation(s) in RCA: 18] [Impact Index Per Article: 2.6] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/06/2023]
Abstract
One of the grand challenges in translational regenerative medicine is the surgical placement of biomaterials. For bone regeneration in particular, malleable and injectable colloidal gelsare frequently designed to exhibit self-assembling and shear-response behavior which facilitates biomaterial placement in tissue defects. The current study demonstrated that by combining native extracellular matrix (ECM) microparticles, i.e., demineralized bone matrix (DBM) and decellularized cartilage (DCC), with hyaluronic acid (HA) and hydroxyapatite (HAP) nanoparticles, a viscoelastic colloidal gel consisting exclusively of natural materials was achieved. Rheological testing of HA-ECM suspensions and HA-HAP-ECM colloidal gels concluded either equivalent or substantially higher storage moduli (G' ≈ 100-10 000 Pa), yield stresses (τy ≈ 100-1000 Pa), and viscoelastic recoveries (G'recovery ≥ 87%) in comparison with controls formulated without ECM, which indicated a previously unexplored synergy in fluid properties between ECM microparticles and HA-HAP colloidal networks. Notable rheological differences were observed between respective DBM and DCC formulations, specifically in HA-HAP-DBM mixtures, which displayed a mean 3-fold increase in G' and a mean 4-fold increase in τy from corresponding DCC mixtures. An initial in vitro assessment of these potential tissue fillers as substrates for cell growth revealed that all formulations of HA-ECM and HA-HAP-ECM showed no signs of cytotoxicity and appeared to promote cell viability. Both DBM and DCC colloidal gels represent promising platforms for future studies in bone and cartilage tissue engineering. Overall, the current study identified colloidal gels constructed exclusively of natural materials, with viscoelastic properties that may facilitate surgical placement for a wide variety of therapeutic applications.
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Affiliation(s)
| | | | - Michael S Detamore
- Stephenson School of Biomedical Engineering, University of Oklahoma , Norman, Oklahoma 73019, United States
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Beck EC, Barragan M, Tadros MH, Kiyotake EA, Acosta FM, Kieweg SL, Detamore MS. Chondroinductive Hydrogel Pastes Composed of Naturally Derived Devitalized Cartilage. Ann Biomed Eng 2016; 44:1863-80. [PMID: 26744243 DOI: 10.1007/s10439-015-1547-5] [Citation(s) in RCA: 28] [Impact Index Per Article: 3.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/16/2015] [Accepted: 12/29/2015] [Indexed: 01/08/2023]
Abstract
Hydrogel precursors are liquid solutions that are prone to leaking from the defect site once implanted in vivo. Therefore, the objective of the current study was to create a hydrogel precursor that exhibited a yield stress. Additionally, devitalized cartilage extracellular matrix (DVC) was mixed with DVC that had been solubilized and methacrylated (MeSDVC) to create hydrogels that were chondroinductive. Precursors composed of 10% MeSDVC or 10% MeSDVC with 10% DVC were first evaluated rheologically, where non-Newtonian behavior was observed in all hydrogel precursors. Rat bone marrow stem cells (rBMSCs) were mixed in the precursor solutions, and the solutions were then crosslinked and cultured in vitro for 6 weeks with and without exposure to human transforming growth factor β3 (TGF-β3). The compressive modulus, gene expression, biochemical content, swelling, and histology of the gels were analyzed. The DVC-containing gels consistently outperformed the MeSDVC-only group in chondrogenic gene expression, especially at 6 weeks, where the relative collagen II expression of the DVC-containing groups with and without TGF-β3 exposure was 40- and 78-fold higher, respectively, than that of MeSDVC alone. Future work will test for chondrogenesis in vivo and overall, these two cartilage-derived components are promising materials for cartilage tissue engineering applications.
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Affiliation(s)
- Emily C Beck
- Department of Surgery, University of Kansas Medical Center, Kansas City, MO, 66160, USA
| | - Marilyn Barragan
- Department of Molecular Biosciences, University of Kansas, Lawrence, KS, 66045, USA
| | - Madeleine H Tadros
- Department of Chemical and Biomolecular Engineering, Rice University, Houston, TX, 77005, USA
| | - Emi A Kiyotake
- Bioengineering Program, University of Kansas, Lawrence, KS, 66045, USA
| | - Francisca M Acosta
- Department of Chemical and Petroleum Engineering, University of Kansas, 4163 Learned Hall, 1530 W. 15th Street, Lawrence, KS, 66045, USA
| | - Sarah L Kieweg
- Bioengineering Program, University of Kansas, Lawrence, KS, 66045, USA
- Department of Mechanical Engineering, University of Kansas, Lawrence, KS, 66045, USA
| | - Michael S Detamore
- Bioengineering Program, University of Kansas, Lawrence, KS, 66045, USA.
- Department of Chemical and Petroleum Engineering, University of Kansas, 4163 Learned Hall, 1530 W. 15th Street, Lawrence, KS, 66045, USA.
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Beck EC, Lohman BL, Tabakh DB, Kieweg SL, Gehrke SH, Berkland CJ, Detamore MS. Enabling Surgical Placement of Hydrogels Through Achieving Paste-Like Rheological Behavior in Hydrogel Precursor Solutions. Ann Biomed Eng 2015; 43:2569-76. [PMID: 25691398 DOI: 10.1007/s10439-015-1277-8] [Citation(s) in RCA: 18] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/10/2014] [Accepted: 02/09/2015] [Indexed: 02/03/2023]
Abstract
Hydrogels are a promising class of materials for tissue regeneration, but they lack the ability to be molded into a defect site by a surgeon because hydrogel precursors are liquid solutions that are prone to leaking during placement. Therefore, although the main focus of hydrogel technology and developments are on hydrogels in their crosslinked form, our primary focus is on improving the fluid behavior of hydrogel precursor solutions. In this work, we introduce a method to achieve paste-like hydrogel precursor solutions by combining hyaluronic acid nanoparticles with traditional crosslinked hyaluronic acid hydrogels. Prior to crosslinking, the samples underwent rheological testing to assess yield stress and recovery using linear hyaluronic acid as a control. The experimental groups containing nanoparticles were the only solutions that exhibited a yield stress, demonstrating that the nanoparticulate rather than the linear form of hyaluronic acid was necessary to achieve paste-like behavior. The gels were also photocrosslinked and further characterized as solids, where it was demonstrated that the inclusion of nanoparticles did not adversely affect the compressive modulus and that encapsulated bone marrow-derived mesenchymal stem cells remained viable. Overall, this nanoparticle-based approach provides a platform hydrogel system that exhibits a yield stress prior to crosslinking, and can then be crosslinked into a hydrogel that is capable of encapsulating cells that remain viable. This behavior may hold significant impact for hydrogel applications where a paste-like behavior is desired in the hydrogel precursor solution.
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Affiliation(s)
- Emily C Beck
- Bioengineering Program, University of Kansas, 4163 Learned Hall, 1530 W. 15th Street, Lawrence, KS, 66045, USA.
| | - Brooke L Lohman
- Department of Chemical and Petroleum Engineering, University of Kansas, 4163 Learned Hall, 1530 W. 15th Street, Lawrence, KS, 66045, USA.
| | - Daniel B Tabakh
- Department of Chemical and Petroleum Engineering, University of Kansas, 4163 Learned Hall, 1530 W. 15th Street, Lawrence, KS, 66045, USA.
| | - Sarah L Kieweg
- Bioengineering Program, University of Kansas, 4163 Learned Hall, 1530 W. 15th Street, Lawrence, KS, 66045, USA.
- Department of Mechanical Engineering, University of Kansas, Lawrence, KS, 66045, USA.
| | - Stevin H Gehrke
- Bioengineering Program, University of Kansas, 4163 Learned Hall, 1530 W. 15th Street, Lawrence, KS, 66045, USA.
- Department of Chemical and Petroleum Engineering, University of Kansas, 4163 Learned Hall, 1530 W. 15th Street, Lawrence, KS, 66045, USA.
| | - Cory J Berkland
- Bioengineering Program, University of Kansas, 4163 Learned Hall, 1530 W. 15th Street, Lawrence, KS, 66045, USA.
- Department of Chemical and Petroleum Engineering, University of Kansas, 4163 Learned Hall, 1530 W. 15th Street, Lawrence, KS, 66045, USA.
- Department of Pharmaceutical Chemistry, University of Kansas, 320B MRB, 2030 Becker Drive, Lawrence, KS, 66045, USA.
| | - Michael S Detamore
- Bioengineering Program, University of Kansas, 4163 Learned Hall, 1530 W. 15th Street, Lawrence, KS, 66045, USA.
- Department of Chemical and Petroleum Engineering, University of Kansas, 4163 Learned Hall, 1530 W. 15th Street, Lawrence, KS, 66045, USA.
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13
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Maas M, Hess U, Rezwan K. The contribution of rheology for designing hydroxyapatite biomaterials. Curr Opin Colloid Interface Sci 2014. [DOI: 10.1016/j.cocis.2014.09.002] [Citation(s) in RCA: 14] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/24/2022]
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