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Hameed H, Faheem S, Paiva-Santos AC, Sarwar HS, Jamshaid M. A Comprehensive Review of Hydrogel-Based Drug Delivery Systems: Classification, Properties, Recent Trends, and Applications. AAPS PharmSciTech 2024; 25:64. [PMID: 38514495 DOI: 10.1208/s12249-024-02786-x] [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: 12/20/2023] [Accepted: 03/05/2024] [Indexed: 03/23/2024] Open
Abstract
As adaptable biomaterials, hydrogels have shown great promise in several industries, which include the delivery of drugs, engineering of tissues, biosensing, and regenerative medicine. These hydrophilic polymer three-dimensional networks have special qualities like increased content of water, soft, flexible nature, as well as biocompatibility, which makes it excellent candidates for simulating the extracellular matrix and promoting cell development and tissue regeneration. With an emphasis on their design concepts, synthesis processes, and characterization procedures, this review paper offers a thorough overview of hydrogels. It covers the various hydrogel material types, such as natural polymers, synthetic polymers, and hybrid hydrogels, as well as their unique characteristics and uses. The improvements in hydrogel-based platforms for controlled drug delivery are examined. It also looks at recent advances in bioprinting methods that use hydrogels to create intricate tissue constructions with exquisite spatial control. The performance of hydrogels is explored through several variables, including mechanical properties, degradation behaviour, and biological interactions, with a focus on the significance of customizing hydrogel qualities for particular applications. This review paper also offers insights into future directions in hydrogel research, including those that promise to advance the discipline, such as stimuli-responsive hydrogels, self-healing hydrogels, and bioactive hydrogels. Generally, the objective of this review paper is to provide readers with a detailed grasp of hydrogels and all of their potential uses, making it an invaluable tool for scientists and researchers studying biomaterials and tissue engineering.
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Affiliation(s)
- Huma Hameed
- Faculty of Pharmaceutical Sciences, University of Central Punjab, Lahore, 54000, Pakistan.
| | - Saleha Faheem
- Faculty of Pharmaceutical Sciences, University of Central Punjab, Lahore, 54000, Pakistan
| | - Ana Cláudia Paiva-Santos
- Department of Pharmaceutical Technology, Faculty of Pharmacy of the University of Coimbra, University of Coimbra, 3000-548, Coimbra, Portugal
- REQUIMTE/LAQV, Group of Pharmaceutical Technology, Faculty of Pharmacy of the University of Coimbra, University of Coimbra, 3000-548, Coimbra, Portugal
| | - Hafiz Shoaib Sarwar
- Faculty of Pharmaceutical Sciences, University of Central Punjab, Lahore, 54000, Pakistan
| | - Muhammad Jamshaid
- Faculty of Pharmaceutical Sciences, University of Central Punjab, Lahore, 54000, Pakistan
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2
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Zhang J, Zhang S, Liu C, Lu Z, Li M, Hurren C, Wang D. Photopolymerized multifunctional sodium alginate-based hydrogel for antibacterial and coagulation dressings. Int J Biol Macromol 2024; 260:129428. [PMID: 38232887 DOI: 10.1016/j.ijbiomac.2024.129428] [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: 10/07/2023] [Revised: 01/02/2024] [Accepted: 01/09/2024] [Indexed: 01/19/2024]
Abstract
Trauma caused by tissue damage in clinical applications has posed a serious threat to public safety. Dressings with a single function cannot meet the needs of wound healing, but multifunctional dressings are difficult to achieve and obtain. To address this issue, this research designed a facile one-pot photo-crosslinking method to prepare multifunctional sodium alginate-based hydrogel dressings for effective wound healing. According to irregular wounds, sodium alginate-based hydrogel dressings can be quickly prepared anytime and anywhere. The structure and physicochemical properties of hydrogels are regulated by modulating the proportion of main components sodium alginate and acrylamide. The results showed the sodium alginate-based composite hydrogel as a candidate multifunctional dressing that exhibits excellent stretchability and compressibility, viscoelasticity, and suitable tissue-like adhesion. In vitro drug release and antibacterial experiments indicated that the hydrogel has effective antibacterial properties against S. aureus and P. aeruginosa. Furthermore, the haemostatic behaviour of the hydrogel was demonstrated using the coagulation activation test, whole blood-clotting test, and blood cell and platelet adhesion experiments. All these results demonstrated that the sodium alginate-based hydrogel had high application potential as a multifunctional medical dressing for wound healing.
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Affiliation(s)
- Jiaqi Zhang
- Key Laboratory of Textile Fiber and Products (Wuhan Textile University) Ministry of Education, Hubei International Scientific and Technological Cooperation Base of Intelligent Textile Materials & Application, Wuhan Textile University, Wuhan 430200, China; Deakin University, Institute for Frontier Materials, Geelong 3216, Australia
| | - Siwei Zhang
- Key Laboratory of Textile Fiber and Products (Wuhan Textile University) Ministry of Education, Hubei International Scientific and Technological Cooperation Base of Intelligent Textile Materials & Application, Wuhan Textile University, Wuhan 430200, China
| | - Chao Liu
- Deakin University, Institute for Frontier Materials, Geelong 3216, Australia
| | - Zhentan Lu
- Key Laboratory of Textile Fiber and Products (Wuhan Textile University) Ministry of Education, Hubei International Scientific and Technological Cooperation Base of Intelligent Textile Materials & Application, Wuhan Textile University, Wuhan 430200, China.
| | - Mufang Li
- Key Laboratory of Textile Fiber and Products (Wuhan Textile University) Ministry of Education, Hubei International Scientific and Technological Cooperation Base of Intelligent Textile Materials & Application, Wuhan Textile University, Wuhan 430200, China.
| | - Christopher Hurren
- Deakin University, Institute for Frontier Materials, Geelong 3216, Australia.
| | - Dong Wang
- Key Laboratory of Textile Fiber and Products (Wuhan Textile University) Ministry of Education, Hubei International Scientific and Technological Cooperation Base of Intelligent Textile Materials & Application, Wuhan Textile University, Wuhan 430200, China
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3
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Li Z, Yong H, Wang K, Zhou YN, Lyu J, Liang L, Zhou D. (Controlled) Free radical (co)polymerization of multivinyl monomers: strategies, topological structures and biomedical applications. Chem Commun (Camb) 2023; 59:4142-4157. [PMID: 36919482 DOI: 10.1039/d3cc00250k] [Citation(s) in RCA: 3] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 03/10/2023]
Abstract
Free radical (co)polymerization (FRP/FRcP) of multivinyl monomers (MVMs) has emerged as a powerful strategy for the synthesis of chemically and topologically complex polymers due to its unique reaction kinetics, which enables the preparation of polymers with multiple functional groups and novel macromolecular structures. However, conventional FRP/FRcP of MVMs inevitably leads to insoluble crosslinked materials. Therefore, the development of advanced strategies for the controlled polymerization of MVMs is essential for the preparation of chemically and topologically complex polymers. In this review, we introduce the gelation mechanism of conventional FRP of MVMs and present the strategies of controlled polymerization of MVMs for the preparation of chemically and topologically complex polymers. We also discuss polymers with unique topologies synthesized by controlled polymerization of MVMs, such as crosslinked networks, (hyper)branched, star, cyclic, and single-chain cyclized/knotted structures. Finally, biomedical applications of various advanced polymeric materials prepared by controlled polymerization of MVMs are highlighted and the challenges is this field are discussed.
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Affiliation(s)
- Zhili Li
- School of Chemical Engineering and Technology, Xi'an Jiaotong University, Xi'an, 710049, China.
| | - Haiyang Yong
- School of Chemical Engineering and Technology, Xi'an Jiaotong University, Xi'an, 710049, China.
| | - Kaixuan Wang
- School of Chemical Engineering and Technology, Xi'an Jiaotong University, Xi'an, 710049, China.
| | - Ya-Nan Zhou
- School of Chemical Engineering and Technology, Xi'an Jiaotong University, Xi'an, 710049, China.
| | - Jing Lyu
- Charles Institute of Dermatology, School of Medicine, University College Dublin, Dublin 4, Ireland.
| | - Lirong Liang
- Department of Clinical Epidemiology, Beijing Institute of Respiratory Medicine and Beijing Chao Yang Hospital, Capital Medical University, Beijing, 100020, China.
| | - Dezhong Zhou
- School of Chemical Engineering and Technology, Xi'an Jiaotong University, Xi'an, 710049, China.
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4
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Hua W, Zhang C, Raymond L, Mitchell K, Wen L, Yang Y, Zhao D, Liu S, Jin Y. 3D printing-based full-scale human brain for diverse applications. BRAIN-X 2023; 1:e5. [PMID: 37818250 PMCID: PMC10564551 DOI: 10.1002/brx2.5] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Figures] [Subscribe] [Scholar Register] [Indexed: 10/12/2023]
Abstract
Surgery is the most frequent treatment for patients with brain tumors. The construction of full-scale human brain models, which is still challenging to realize via current manufacturing techniques, can effectively train surgeons before brain tumor surgeries. This paper aims to develop a set of three-dimensional (3D) printing approaches to fabricate customized full-scale human brain models for surgery training as well as specialized brain patches for wound healing after surgery. First, a brain patch designed to fit a wound's shape and size can be easily printed in and collected from a stimuli-responsive yield-stress support bath. Then, an inverse 3D printing strategy, called "peeling-boiled-eggs," is proposed to fabricate full-scale human brain models. In this strategy, the contour layer of a brain model is printed using a sacrificial ink to envelop the target brain core within a photocurable yield-stress support bath. After crosslinking the contour layer, the as-printed model can be harvested from the bath to photo crosslink the brain core, which can be eventually released by liquefying the contour layer. Both the brain patch and full-scale human brain model are successfully printed to mimic the scenario of wound healing after removing a brain tumor, validating the effectiveness of the proposed 3D printing approaches.
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Affiliation(s)
- Weijian Hua
- Department of Mechanical Engineering, University of Nevada Reno, Reno, Nevada, USA
| | - Cheng Zhang
- Department of Mechanical Engineering, University of Nevada Reno, Reno, Nevada, USA
- School of Mechanical Engineering, Dalian University of Technology, Dalian, Liaoning, China
| | - Lily Raymond
- Department of Mechanical Engineering, University of Nevada Reno, Reno, Nevada, USA
| | - Kellen Mitchell
- Department of Mechanical Engineering, University of Nevada Reno, Reno, Nevada, USA
| | - Lai Wen
- Department of Pharmacology, Center for Molecular and Cellular Signaling in the Cardiovascular System, School of Medicine, University of Nevada, Reno, Nevada, USA
| | - Ying Yang
- Department of Chemistry, University of Nevada Reno, Reno, Nevada, USA
| | - Danyang Zhao
- School of Mechanical Engineering, Dalian University of Technology, Dalian, Liaoning, China
| | - Shu Liu
- Department of Gerontology, The First Affiliated Hospital of China Medical University, Shenyang, Liaoning, China
| | - Yifei Jin
- Department of Mechanical Engineering, University of Nevada Reno, Reno, Nevada, USA
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Enhancing Stem Cell Therapy for Cartilage Repair in Osteoarthritis-A Hydrogel Focused Approach. Gels 2021; 7:gels7040263. [PMID: 34940323 PMCID: PMC8701810 DOI: 10.3390/gels7040263] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/11/2021] [Revised: 12/05/2021] [Accepted: 12/09/2021] [Indexed: 12/19/2022] Open
Abstract
Sem cells hold tremendous promise for the treatment of cartilage repair in osteoarthritis. In addition to their multipotency, stem cells possess immunomodulatory effects that can alleviate inflammation and enhance cartilage repair. However, the widely clinical application of stem cell therapy to cartilage repair and osteoarthritis has proven difficult due to challenges in large-scale production, viability maintenance in pathological tissue site and limited therapeutic biological activity. This review aims to provide a perspective from hydrogel-focused approach to address few key challenges in stem cell-based therapy for cartilage repair and highlight recent progress in advanced hydrogels, particularly microgels and dynamic hydrogels systems for improving stem cell survival, retention and regulation of stem cell fate. Finally, progress in hydrogel-assisted gene delivery and genome editing approaches for the development of next generation of stem cell therapy for cartilage repair in osteoarthritis are highlighted.
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Vasquez JM, Idrees A, Carmagnola I, Sigen A, McMahon S, Marlinghaus L, Ciardelli G, Greiser U, Tai H, Wang W, Salber J, Chiono V. In situ Forming Hyperbranched PEG-Thiolated Hyaluronic Acid Hydrogels With Honey-Mimetic Antibacterial Properties. Front Bioeng Biotechnol 2021; 9:742135. [PMID: 34869257 PMCID: PMC8637896 DOI: 10.3389/fbioe.2021.742135] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/15/2021] [Accepted: 09/28/2021] [Indexed: 11/13/2022] Open
Abstract
The rapidly increasing resistance of bacteria to currently approved antibiotic drugs makes surgical interventions and the treatment of bacterial infections increasingly difficult. In recent years, complementary strategies to classical antibiotic therapy have, therefore, gained importance. One of these strategies is the use of medicinal honey in the treatment of bacterially colonized wounds. One of the several bactericidal effects of honey is based on the in situ generation of hydrogen peroxide through the activity of the enzyme glucose oxidase. The strategy underlying this work is to mimic this antibacterial redox effect of honey in an injectable, biocompatible, and rapidly forming hydrogel. The hydrogel was obtained by thiol–ene click reaction between hyperbranched polyethylene glycol diacrylate (HB PEGDA), synthesized using reversible addition-fragmentation chain transfer (RAFT) polymerization, and thiolated hyaluronic acid (HA-SH). After mixing 500 µL HB PEGDA (10%, w/w) and 500 µL HA-SH (1%, w/w) solutions, hydrogels formed in ∼60 s (HB PEGDA/HA-SH 10.0–1.0), as assessed by the tube inverting test. The HB PEGDA/HA-SH 10.0–1.0 hydrogel (200 µL) was resistant to in vitro dissolution in water for at least 64 days, absorbing up to 130 wt% of water. Varying glucose oxidase (GO) amounts (0–500 U/L) and constant glucose content (2.5 wt%) were loaded into HB PEGDA and HA-SH solutions, respectively, before hydrogel formation. Then, the release of H2O2 was evaluated through a colorimetric pertitanic acid assay. The GO content of 250 U/L was selected, allowing the formation of 10.8 ± 1.4 mmol H2O2/L hydrogel in 24 h, under static conditions. The cytocompatibility of HB PEGDA/HA-SH 10.0–1.0 hydrogels loaded with different GO activities (≤ 500 U/L) at a constant glucose amount (2.5 wt%) was investigated by in vitro assays at 24 h with L929 and HaCaT cell lines, according to DIN EN ISO 10993-5. The tests showed cytocompatibility for GO enzyme activity up to 250 U/L for both cell lines. The antibacterial activity of HB PEGDA/HA-SH 10.0–1.0 hydrogels loaded with increasing amounts of GO was demonstrated against various gram-positive bacteria (S. aureus and S. epidermidis), antibiotic-resistant gram-positive bacteria (MRSA and MRSE), gram-negative bacteria (P. aeruginosa, E. coli, and A. baumanii), and antibiotic-resistant gram-negative strains (P. aeruginosa and E. coli) using agar diffusion tests. For all gram-positive bacterial strains, increasing efficacy was measured with increasing GO activity. For the two P. aeruginosa strains, efficacy was shown only from an enzyme activity of 125 U/L and for E. coli and A. baumanii, efficacy was shown only from 250 U/L enzyme activity. HB PEGDA/HA-SH 10.0–1.0 hydrogels loaded with ≤250 U/L GO and 2.5 wt% glucose are promising formulations due to their fast-forming properties, cytocompatibility, and ability to produce antibacterial H2O2, warranting future investigations for bacterial infection treatment, such as wound care.
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Affiliation(s)
- Jeddah Marie Vasquez
- Department of Mechanical and Aerospace Engineering, Politecnico di Torino, Turin, Italy.,Blafar Ltd., Dublin, Ireland.,Wenxin Wang Research Group, Charles Institute of Dermatology, University College Dublin, Dublin, Ireland
| | - Ayesha Idrees
- Department of Mechanical and Aerospace Engineering, Politecnico di Torino, Turin, Italy.,Department of Surgery, Universitätsklinikum Knappschaftskrankenhaus Bochum, Ruhr-University, Bochum, Germany
| | - Irene Carmagnola
- Department of Mechanical and Aerospace Engineering, Politecnico di Torino, Turin, Italy
| | - Aa Sigen
- Blafar Ltd., Dublin, Ireland.,Wenxin Wang Research Group, Charles Institute of Dermatology, University College Dublin, Dublin, Ireland
| | - Sean McMahon
- Blafar Ltd., Dublin, Ireland.,Wenxin Wang Research Group, Charles Institute of Dermatology, University College Dublin, Dublin, Ireland
| | | | - Gianluca Ciardelli
- Department of Mechanical and Aerospace Engineering, Politecnico di Torino, Turin, Italy
| | - Udo Greiser
- Wenxin Wang Research Group, Charles Institute of Dermatology, University College Dublin, Dublin, Ireland
| | | | - Wenxin Wang
- Blafar Ltd., Dublin, Ireland.,Wenxin Wang Research Group, Charles Institute of Dermatology, University College Dublin, Dublin, Ireland
| | - Jochen Salber
- Department of Surgery, Universitätsklinikum Knappschaftskrankenhaus Bochum, Ruhr-University, Bochum, Germany
| | - Valeria Chiono
- Department of Mechanical and Aerospace Engineering, Politecnico di Torino, Turin, Italy
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7
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Dayal P, Misra N, Khewle S, Singh RA. On the Role of Half-Catalan Numbers and Pathwidth in Hyperbranched Polymers Synthesized by AB m Step Polymerization. Macromolecules 2021. [DOI: 10.1021/acs.macromol.1c01608] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
Affiliation(s)
- Pratyush Dayal
- Department of Chemical Engineering, Indian Institute of Technology Gandhinagar, Gandhinagar, Gujarat 382355, India
| | - Neeldhara Misra
- Department of Computer Science and Engineering, Indian Institute of Technology Gandhinagar, Gandhinagar, Gujarat 382355, India
| | - Surbhi Khewle
- Department of Chemical Engineering, Indian Institute of Technology Gandhinagar, Gandhinagar, Gujarat 382355, India
| | - Ravi Anand Singh
- Department of Chemical Engineering, Indian Institute of Technology Gandhinagar, Gandhinagar, Gujarat 382355, India
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8
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Wang X, Li X, Duffy P, McMahon S, Wang X, Lyu J, Xu Q, A S, Chen NN, Bi V, Dürig T, Wang W. Resveratrol‐Loaded Poly(
d
,
l
‐Lactide‐
Co
‐Glycolide) Microspheres Integrated in a Hyaluronic Acid Injectable Hydrogel for Cartilage Regeneration. ADVANCED NANOBIOMED RESEARCH 2021. [DOI: 10.1002/anbr.202100070] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/11/2022] Open
Affiliation(s)
- Xi Wang
- Charles Institute of Dermatology School of Medicine University College Dublin Dublin 4 Ireland
- Ashland Specialties Ireland Ltd. National Science Park Building V, Dublin Road, Petitswood, Mullingar Co. Westmeath N91 F6PD Ireland
| | - Xiaolin Li
- Charles Institute of Dermatology School of Medicine University College Dublin Dublin 4 Ireland
- Ashland Specialties Ireland Ltd. National Science Park Building V, Dublin Road, Petitswood, Mullingar Co. Westmeath N91 F6PD Ireland
| | - Patrick Duffy
- Ashland Specialties Ireland Ltd. National Science Park Building V, Dublin Road, Petitswood, Mullingar Co. Westmeath N91 F6PD Ireland
| | - Sean McMahon
- Ashland Specialties Ireland Ltd. National Science Park Building V, Dublin Road, Petitswood, Mullingar Co. Westmeath N91 F6PD Ireland
| | - Xianqing Wang
- Charles Institute of Dermatology School of Medicine University College Dublin Dublin 4 Ireland
| | - Jing Lyu
- Charles Institute of Dermatology School of Medicine University College Dublin Dublin 4 Ireland
| | - Qian Xu
- Charles Institute of Dermatology School of Medicine University College Dublin Dublin 4 Ireland
| | - Sigen A
- Charles Institute of Dermatology School of Medicine University College Dublin Dublin 4 Ireland
| | - Ningyi N. Chen
- Pharmaceutical R&D Ashland Specialty Ingredients G.P. 500 Hercules Road, 8136A/260 Wilmington DE 19808 USA
| | - Vivian Bi
- Pharmaceutical R&D Ashland Specialty Ingredients G.P. 500 Hercules Road, 8136A/260 Wilmington DE 19808 USA
| | - Thomas Dürig
- Pharmaceutical R&D Ashland Specialty Ingredients G.P. 500 Hercules Road, 8136A/260 Wilmington DE 19808 USA
| | - Wenxin Wang
- Charles Institute of Dermatology School of Medicine University College Dublin Dublin 4 Ireland
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9
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Cai Y, Johnson M, A S, Xu Q, Tai H, Wang W. A Hybrid Injectable and Self-Healable Hydrogel System as 3D Cell Culture Scaffold. Macromol Biosci 2021; 21:e2100079. [PMID: 34145758 DOI: 10.1002/mabi.202100079] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Key Words] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/02/2021] [Revised: 04/14/2021] [Indexed: 01/06/2023]
Abstract
Cell therapies have great potential for the treatment of many different diseases, while the direct application of cells to the targeted location leads to limited therapeutic outcomes due to the low cell engraftment and cell survival rate. Injectable hydrogels have been developed to facilitate cell delivery; however, those currently developed hydrogel systems still face the limited cell survival rate. Here, an injectable and self-healable hydrogel is reported through the combination of hyperbranched PEG-based multi-hydrazide macro-crosslinker (HB-PEG-HDZ) and aldehyde-functionalized hyaluronic acid (HA-CHO), with gelatin added to increase the crosslinking density and cell activity. The hydrogels can be formed only in 7 s due to the relatively high content of the functional end groups. The reversible crosslinking mechanism between the hydrazide and aldehyde groups endows the hydrogel with shear-thinning and self-healing properties. The hydrogels with gelatin exhibit relatively better mechanical properties and cell activity. The hydrogels can improve the survival, attachment, and engraftment of injected cells due to the rapid sol-gel transition, which can promote an enhanced regenerative response.
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Affiliation(s)
- Yi Cai
- Charles Institute of Dermatology, School of Medicine, University College Dublin, Dublin, Dublin 4, Ireland.,Blafar Limited, NovaUCD, Belfield Innovation Park Belfield, Dublin, Dublin 4, Ireland
| | - Melissa Johnson
- Charles Institute of Dermatology, School of Medicine, University College Dublin, Dublin, Dublin 4, Ireland
| | - Sigen A
- Charles Institute of Dermatology, School of Medicine, University College Dublin, Dublin, Dublin 4, Ireland
| | - Qian Xu
- Charles Institute of Dermatology, School of Medicine, University College Dublin, Dublin, Dublin 4, Ireland
| | - Hongyun Tai
- Blafar Limited, NovaUCD, Belfield Innovation Park Belfield, Dublin, Dublin 4, Ireland
| | - Wenxin Wang
- Charles Institute of Dermatology, School of Medicine, University College Dublin, Dublin, Dublin 4, Ireland.,MOE Key Laboratory of Macromolecular Synthesis and Functionalization, Department of Polymer Science and Engineering, Zhejiang University, Hangzhou, 310027, China
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10
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Roseen MA, Lee R, Post AD, Wancura M, Connell JP, Cosgriff-Hernandez E, Grande-Allen KJ. Poly(ethylene glycol)-Based Coatings for Bioprosthetic Valve Tissues: Toward Restoration of Physiological Behavior. ACS APPLIED BIO MATERIALS 2020; 3:8352-8360. [PMID: 35019607 DOI: 10.1021/acsabm.0c00550] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/13/2022]
Abstract
Bioprosthetic valves (BPVs) have a limited lifespan in the body necessitating repeated surgeries to replace the failed implant. Early failure of these implants has been linked to various surface properties of the valve. Surface properties of BPVs are significantly different from physiological valves because of the fixation process used when processing the xenograft tissue. To improve the longevity of BPVs, efforts need to be taken to improve the surface properties and shield the implant from the bodily interactions that degrade it. Toward this goal, we evaluated the use of hydrogel coatings to attach to the BPV tissue and impart surface properties that are close to physiological. Hydrogels are well characterized for their biocompatibility and highly tunable surface characteristics. Using a previously published coating method, we deposited hydrogel coatings of poly(ethylene glycol)diacrylate (PEGDA) and poly(ethylene glycol)diacrylamide (PEGDAA) atop BPV samples. Coated samples were evaluated against the physiological tissue and uncoated glutaraldehyde-fixed tissue for deposition of hydrogel, surface adherence, mechanical properties, and fixation properties. Results showed both PEGDA- and PEGDAA-deposited coatings were nearly continuous across the valve leaflet surface. Further, the PEGDA- and PEGDAA-coated samples showed restoration of physiological levels of protein adhesion and mechanical stiffness. Interestingly, the coating process rather than the coating itself altered the material behavior yet did not alter the cross-linking from fixation. These results show that the PEG-based coatings for BPVs can successfully alter surface properties of BPVs and help promote physiological characteristics without interfering with the necessary fixation.
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Affiliation(s)
- Madeleine A Roseen
- Department of Bioengineering, Rice University, Houston 77005, Texas, United States
| | - Romi Lee
- Department of Bioengineering, Rice University, Houston 77005, Texas, United States
| | - Allison D Post
- Department of Biomedical Engineering, University of Texas at Austin, Austin 78712, Texas, United States
| | - Megan Wancura
- Department of Chemistry, University of Texas at Austin, Austin 78712, Texas, United States
| | - Jennifer P Connell
- Department of Bioengineering, Rice University, Houston 77005, Texas, United States
| | | | - K Jane Grande-Allen
- Department of Bioengineering, Rice University, Houston 77005, Texas, United States
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11
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Redox and pH dual-responsive injectable hyaluronan hydrogels with shape-recovery and self-healing properties for protein and cell delivery. Carbohydr Polym 2020; 250:116979. [DOI: 10.1016/j.carbpol.2020.116979] [Citation(s) in RCA: 21] [Impact Index Per Article: 5.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/13/2020] [Revised: 08/18/2020] [Accepted: 08/20/2020] [Indexed: 02/08/2023]
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12
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Jiang Z, He H, Liu H, Thayumanavan S. Azide-Terminated RAFT Polymers for Biological Applications. CURRENT PROTOCOLS IN CHEMICAL BIOLOGY 2020; 12:e85. [PMID: 33207082 PMCID: PMC7685003 DOI: 10.1002/cpch.85] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 12/21/2022]
Abstract
Reversible addition-fragmentation chain-transfer (RAFT) polymerization is a commonly used polymerization methodology to generate synthetic polymers. The products of RAFT polymerization, i.e., RAFT polymers, have been widely employed in several biologically relevant areas, including drug delivery, biomedical imaging, and tissue engineering. In this article, we summarize a synthetic methodology to display an azide group at the chain end of a RAFT polymer, thus presenting a reactive site on the polymer terminus. This platform enables a click reaction between azide-terminated polymers and alkyne-containing molecules, providing a broadly applicable scaffold for chemical and bioconjugation reactions on RAFT polymers. We also highlight applications of these azide-terminated RAFT polymers in fluorophore labeling and for promoting organelle targeting capability. © 2020 Wiley Periodicals LLC. Basic Protocol 1: Synthesis of the azide derivatives of chain transfer agent and radical initiator Basic Protocol 2: Installation of an azide group on the α-end of RAFT polymers Alternate Protocol: Installation of an azide group on the ω-end of RAFT polymers Basic Protocol 3: Click reaction between azide-terminated RAFT polymers and alkyne derivatives.
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Affiliation(s)
- Ziwen Jiang
- Department of Chemistry, University of Massachusetts Amherst, Amherst, MA 01003, United States
- Department of Pharmaceutical Chemistry, University of California, San Francisco, CA, 94158, United States
| | - Huan He
- Department of Chemistry, University of Massachusetts Amherst, Amherst, MA 01003, United States
- DuPont Electronics & Imaging, Marlborough, MA 01752, United States
| | - Hongxu Liu
- Department of Chemistry, University of Massachusetts Amherst, Amherst, MA 01003, United States
| | - S. Thayumanavan
- Department of Chemistry, University of Massachusetts Amherst, Amherst, MA 01003, United States
- Molecular and Cellular Biology Program, University of Massachusetts Amherst, Amherst, MA 01003, United States
- Center for Bioactive Delivery at the Institute for Applied Life Sciences, University of Massachusetts Amherst, Amherst, MA 01003, United States
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13
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A S, Lyu J, Johnson M, Creagh-Flynn J, Zhou D, Lara-Sáez I, Xu Q, Tai H, Wang W. Instant Gelation System as Self-Healable and Printable 3D Cell Culture Bioink Based on Dynamic Covalent Chemistry. ACS APPLIED MATERIALS & INTERFACES 2020; 12:38918-38924. [PMID: 32805952 DOI: 10.1021/acsami.0c08567] [Citation(s) in RCA: 13] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/11/2023]
Abstract
The rapid development of additive manufacturing techniques in the field of tissue regeneration offers unprecedented success for artificial tissue and organ fabrication. However, some limitations still remain for current bioinks, such as the compromised cell viability after printing, the low cross-linking efficiency leading to poor printing resolution and speed due to the relatively slow gelation rate, and the requirement of external stimuli for gelation. To address these problems, herein, a biocompatible and printable instant gelation hydrogel system has been developed based on a designed hyperbranched poly(ethylene glycol) (PEG)-based multihydrazide macro-cross-linker (HB-PEG-HDZ) and an aldehyde-functionalized hyaluronic acid (HA-CHO). HB-PEG-HDZ is prepared by the postfunctionalization of hyperbranched PEG-based multivinyl macromer via thiol-ene chemistry. Owing to the high functional group density of HB-PEG-HDZ, the hydrogel can be formed instantly upon mixing the solutions of two components. The reversible cross-linking mechanism between the hydrazide and aldehyde groups endows the hydrogel with shear-thinning and self-healing properties. The minimally toxic components and cross-linking chemistry allow the resulting hydrogel to be a biocompatible niche. Moreover, the fast sol-to-gel transition of the hydrogel, combining all of the advanced characteristics of this platform, protects the cells during the printing procedure, avoids their damage during extrusion, and improves the transplanted cell survival.
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Affiliation(s)
- Sigen A
- Charles Institute of Dermatology, School of Medicine, University College Dublin, Dublin 4, Ireland
| | - Jing Lyu
- Charles Institute of Dermatology, School of Medicine, University College Dublin, Dublin 4, Ireland
| | - Melissa Johnson
- Charles Institute of Dermatology, School of Medicine, University College Dublin, Dublin 4, Ireland
| | - Jack Creagh-Flynn
- Charles Institute of Dermatology, School of Medicine, University College Dublin, Dublin 4, Ireland
| | - Dezhong Zhou
- School of Chemical Engineering and Technology (SCET), Xi'an Jiaotong University, Xi'an 710049, Shaanxi, China
| | - Irene Lara-Sáez
- Charles Institute of Dermatology, School of Medicine, University College Dublin, Dublin 4, Ireland
| | - Qian Xu
- Charles Institute of Dermatology, School of Medicine, University College Dublin, Dublin 4, Ireland
| | - Hongyun Tai
- School of Chemistry, Bangor University, Deiniol Road, Bangor, Gwynedd LL57 2UW, United Kingdom
| | - Wenxin Wang
- Charles Institute of Dermatology, School of Medicine, University College Dublin, Dublin 4, Ireland
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Comparison of Hydrogels for the Development of Well-Defined 3D Cancer Models of Breast Cancer and Melanoma. Cancers (Basel) 2020; 12:cancers12082320. [PMID: 32824576 PMCID: PMC7465483 DOI: 10.3390/cancers12082320] [Citation(s) in RCA: 17] [Impact Index Per Article: 4.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/09/2020] [Revised: 08/10/2020] [Accepted: 08/14/2020] [Indexed: 02/07/2023] Open
Abstract
Bioprinting offers the opportunity to fabricate precise 3D tumor models to study tumor pathophysiology and progression. However, the choice of the bioink used is important. In this study, cell behavior was studied in three mechanically and biologically different hydrogels (alginate, alginate dialdehyde crosslinked with gelatin (ADA–GEL), and thiol-modified hyaluronan (HA-SH crosslinked with PEGDA)) with cells from breast cancer (MDA-MB-231 and MCF-7) and melanoma (Mel Im and MV3), by analyzing survival, growth, and the amount of metabolically active, living cells via WST-8 labeling. Material characteristics were analyzed by dynamic mechanical analysis. Cell lines revealed significantly increased cell numbers in low-percentage alginate and HA-SH from day 1 to 14, while only Mel Im also revealed an increase in ADA–GEL. MCF-7 showed a preference for 1% alginate. Melanoma cells tended to proliferate better in ADA–GEL and HA-SH than mammary carcinoma cells. In 1% alginate, breast cancer cells showed equally good proliferation compared to melanoma cell lines. A smaller area was colonized in high-percentage alginate-based hydrogels. Moreover, 3% alginate was the stiffest material, and 2.5% ADA–GEL was the softest material. The other hydrogels were in the same range in between. Therefore, cellular responses were not only stiffness-dependent. With 1% alginate and HA-SH, we identified matrices that enable proliferation of all tested tumor cell lines while maintaining expected tumor heterogeneity. By adapting hydrogels, differences could be accentuated. This opens up the possibility of understanding and analyzing tumor heterogeneity by biofabrication.
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Li X, A S, Xu Q, Alshehri F, Zeng M, Zhou D, Li J, Zhou G, Wang W. Cartilage-Derived Progenitor Cell-Laden Injectable Hydrogel—An Approach for Cartilage Tissue Regeneration. ACS APPLIED BIO MATERIALS 2020; 3:4756-4765. [DOI: 10.1021/acsabm.0c00294] [Citation(s) in RCA: 15] [Impact Index Per Article: 3.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/18/2022]
Affiliation(s)
- Xiaolin Li
- Charles Institute of Dermatology, School of Medicine, University College Dublin, Dublin 4, Ireland
| | - Sigen A
- Charles Institute of Dermatology, School of Medicine, University College Dublin, Dublin 4, Ireland
| | - Qian Xu
- Charles Institute of Dermatology, School of Medicine, University College Dublin, Dublin 4, Ireland
| | - Fatma Alshehri
- Princess Nourah Bint Abdulrahman University (PNU), Riyadh 11671, Saudi Arabia
| | - Ming Zeng
- Department of Dermatology, The First Affiliated Hospital of Jinan University, Guangzhou 510630, China
| | - Dezhong Zhou
- School of Chemical Engineering and Technology (SCET), Xi’an Jiaotong University, Xi’an, Shaanxi 710049, China
| | - Jun Li
- Department of Orthopedic Surgery, Rush University Medical Center, Chicago, Illinois 60612, United States
| | - Guangqian Zhou
- Department of Medical Cell Biology and Genetics, Guangdong Key Laboratory of Genome Stability & Disease Prevention, Shenzhen Key Laboratory for Anti-ageing and Regenerative Medicine, Health Science Center, Shenzhen University, Nanhai Ave 3688, Shenzhen 518060, China
| | - Wenxin Wang
- Charles Institute of Dermatology, School of Medicine, University College Dublin, Dublin 4, Ireland
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Cuneo T, Gao H. Recent advances on synthesis and biomaterials applications of hyperbranched polymers. WILEY INTERDISCIPLINARY REVIEWS-NANOMEDICINE AND NANOBIOTECHNOLOGY 2020; 12:e1640. [DOI: 10.1002/wnan.1640] [Citation(s) in RCA: 8] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Received: 01/16/2020] [Revised: 03/14/2020] [Accepted: 04/02/2020] [Indexed: 12/13/2022]
Affiliation(s)
- Timothy Cuneo
- Department of Chemistry and Biochemistry University of Notre Dame Indiana USA
| | - Haifeng Gao
- Department of Chemistry and Biochemistry University of Notre Dame Indiana USA
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17
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Dong Y, Cui M, Qu J, Wang X, Kwon SH, Barrera J, Elvassore N, Gurtner GC. Conformable hyaluronic acid hydrogel delivers adipose-derived stem cells and promotes regeneration of burn injury. Acta Biomater 2020; 108:56-66. [PMID: 32251786 DOI: 10.1016/j.actbio.2020.03.040] [Citation(s) in RCA: 79] [Impact Index Per Article: 19.8] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/16/2019] [Revised: 03/26/2020] [Accepted: 03/27/2020] [Indexed: 02/07/2023]
Abstract
Injury to the skin from severe burns can cause debilitating physical and psychosocial distress to the patients. Upon healing, deep dermal burns often result in devastating hypertrophic scar formation. For many decades, stem cell-based therapies have shown significant potential in improving wound healing. However, current cell delivery methods are often insufficient to maintain cell viability in a harmful burn wound environment to promote skin regeneration. In this study, we developed an enhanced approach to deliver adipose-derived stem cells (ASCs) for the treatment of burn wounds, using an in-situ-formed hydrogel system comprised of a hyperbranched poly(ethylene glycol) diacrylate (HB-PEGDA) polymer, a commercially available thiol-functionalized hyaluronic acid (HA-SH) and a short RGD peptide. Stable hydrogels with tunable swelling and mechanical properties form within five minutes under physiological conditions via the Michael-type addition reaction. Combining with RGD peptide, as a cell adhesion motif, significantly alters the cellular morphology, enhances cell proliferation, and increases the paracrine activity of angiogenesis and tissue remodeling growth factors and cytokines. Bioluminescence imaging of luciferase+ ASCs indicated that the hydrogel protected the implanted cells from the harmful wound environment in burns. Hydrogel-ASC treatment significantly enhanced neovascularization, accelerated wound closure and reduced the scar formation. Our findings suggest that PEG-HA-RGD-based hydrogel provides an effective niche capable of augmenting the regenerative potential of ASCs and promoting burn wound healing. STATEMENT OF SIGNIFICANCE: Burn injury is one of the most devastating injures, and patients suffer from many complications and post-burn scar formation despite modern therapies. Here, we designed a conformable hydrogel-based stem cell delivery platform that allows rapid in-situ gelation upon contact with wounds. Adipose-derived stem cells were encapsulated into a PEG-HA-RGD hydrogels. Introducing of RGD motif significantly improved the cellular morphology, proliferation, and secretion of angiogenesis and remodeling cytokines. A deep second-degree burn murine model was utilized to evaluate in-vivo cell retention and therapeutic effect of the hydrogel-ASC-based therapy on burn wound healing. Our hydrogel remarkably improved ASCs viability in burn wounds and the hydrogel-ASC treatment enhanced the neovascularization, promoted wound closure, and reduced scar formation.
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Affiliation(s)
- Yixiao Dong
- Shanghai Institute for Advanced Immunochemical Studies, ShanghaiTech University, Shanghai, China; Department of Surgery, Stanford University School of Medicine, Stanford, CA, United States; The Charles Institute of Dermatology, School of Medicine and Medical Science, University College Dublin, Dublin, Ireland.
| | - Meihua Cui
- Shanghai Institute for Advanced Immunochemical Studies, ShanghaiTech University, Shanghai, China
| | - Ju Qu
- Shanghai Institute for Advanced Immunochemical Studies, ShanghaiTech University, Shanghai, China
| | - Xuechun Wang
- Shanghai Institute for Advanced Immunochemical Studies, ShanghaiTech University, Shanghai, China
| | - Sun Hyung Kwon
- Department of Surgery, Stanford University School of Medicine, Stanford, CA, United States
| | - Janos Barrera
- Department of Surgery, Stanford University School of Medicine, Stanford, CA, United States
| | - Nicola Elvassore
- Shanghai Institute for Advanced Immunochemical Studies, ShanghaiTech University, Shanghai, China
| | - Geoffrey C Gurtner
- Department of Surgery, Stanford University School of Medicine, Stanford, CA, United States.
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Roseen MA, Fahrenholtz MM, Connell JP, Grande-Allen KJ. Interfacial Coating Method for Amine-Rich Surfaces using Poly(ethylene glycol) Diacrylate Applied to Bioprosthetic Valve Tissue Models. ACS APPLIED BIO MATERIALS 2020; 3:1321-1330. [PMID: 35021626 DOI: 10.1021/acsabm.9b00911] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/30/2023]
Abstract
Bioprosthetic heart valve implants are beset by calcification and failure due to the interactions between the body and the transplant. Hydrogels can be used as biological blank slates that may help to shield implants from these interactions; however, traditional light-based hydrogel polymerization is impeded by tissue opacity and topography. Therefore, new methods must be created to bind hydrogel to implant tissues. To address these complications, a two-step surface-coating method for bioprosthetic valves was developed. A previously developed bioprosthetic valve model (VM) was used to investigate and optimize the coating method. Generally, this coating is achieved by first reacting surface amine groups with an NHS-PEG-acrylate while also allowing glucose to absorb into the bulk. Then, glucose oxidase, poly(ethylene glycol) diacrylate (PEGDA), and iron ions are added to the system to initiate free-radical polymerization that bonds the PEGDA hydrogel to the acrylates sites on the surface. Results showed a thin (∼8 μm), continuous coating on VM samples that is capable of repelling protein adhesion (2% surface fouling versus 20% on uncoated samples) and does not significantly affect the surface mechanical properties. Based on this success, the coating method was translated to glutaraldehyde-fixed valve tissue samples. Results showed noncontinuous but evident coating on the surface, which was further improved by adjusting the coating solution. These results demonstrate the feasibility of the proposed two-step surface coating method for modifying the surface of bioprosthetic valve replacements.
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Affiliation(s)
- Madeleine A Roseen
- Rice University, Department of Bioengineering, 6100 Main St, Houston, Texas 77035, United States
| | - Monica M Fahrenholtz
- Rice University, Department of Bioengineering, 6100 Main St, Houston, Texas 77035, United States.,Texas Children's Hospital, Department of Surgery, 6621 Fannin St, Houston, Texas 77030, United States
| | - Jennifer P Connell
- Rice University, Department of Bioengineering, 6100 Main St, Houston, Texas 77035, United States
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Perera D, Medini M, Seethamraju D, Falkowski R, White K, Olabisi RM. The effect of polymer molecular weight and cell seeding density on viability of cells entrapped within PEGDA hydrogel microspheres. J Microencapsul 2018; 35:475-481. [DOI: 10.1080/02652048.2018.1526341] [Citation(s) in RCA: 12] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/16/2022]
Affiliation(s)
- Davina Perera
- Biomedical Engineering, Rutgers University, New Brunswick, NJ, USA
| | - Michael Medini
- Biomedical Engineering, Rutgers University, New Brunswick, NJ, USA
| | | | - Ron Falkowski
- Biomedical Engineering, Rutgers University, New Brunswick, NJ, USA
| | - Kristopher White
- Chemical and Biochemical Engineering, Rutgers University, New Brunswick, NJ, USA
| | - Ronke M. Olabisi
- Biomedical Engineering, Rutgers University, New Brunswick, NJ, USA
- Institute of Advanced Materials, Devices and Nanotechnology, Rutgers University, New Brunswick, NJ, USA
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20
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Roointan A, Farzanfar J, Mohammadi-Samani S, Behzad-Behbahani A, Farjadian F. Smart pH responsive drug delivery system based on poly(HEMA-co-DMAEMA) nanohydrogel. Int J Pharm 2018; 552:301-311. [PMID: 30291961 DOI: 10.1016/j.ijpharm.2018.10.001] [Citation(s) in RCA: 57] [Impact Index Per Article: 9.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/30/2018] [Revised: 09/27/2018] [Accepted: 10/02/2018] [Indexed: 12/29/2022]
Abstract
The advent of smart nanohydrogel has revealed new opportunities for scientists to develop the most efficient anti-cancer vehicles with safe and biocompatible profile. In this experiment, using reversible addition-fragmentation chain transfer polymerization method as a novel, safe and smart pH responsive formulation of poly (hydroxyethyl methacrylate-co-N,N-dimethylaminoethyl methacrylate) and poly (ethylene glycol)-diacrylate as cross-linker were synthesized. The synthesized structure was confirmed by Fourier-transform infrared spectroscopy and proton nuclear magnetic resonance methods. The pH responsive behavior of the synthesized particles was checked by size measurement in two different pH values (5.5 and 7.4) by dynamic light scattering and transmission electron microscopy. The prepared structure had nanometer sizes of 180 in medium with pH of 7.4, when it encountered acidic medium (e.g. pH 5.5), the particles swelled to about 400 nm. The efficiency of the prepared pH responsive nanohydrogels was tested as a drug delivery system. An anti-cancer drug, doxorubicin successfully interacted with this material. The release profiles of nanoparticles carrying drug molecules were checked in two different simulated pH of healthy organs (7.4) and tumor site (5.5). Despite lower release in pH of 7.4 (∼20%), an increased drug release of 80% was obtained in pH of 5.5. The in vitro toxicity assay, apoptosis evaluation and uptake experiments were performed on breast cancer cell line (MCF-7), which showed a time dependency cellular entrance, an enhanced cytotoxicity and apoptosis induction by the doxorubicin loaded nanoparticles. Hemolysis assays confirmed the safety and hemocompatibility of the developed nanohydrogel. The suitable size (<200 nm), pH responsive behavior, anti-proliferative activity and apoptosis induction in cancer cells and hemocompatibility were the noticeable features of the developed doxorubicin adsorbed nanoparticle, which introduced this formulation as an ideal vehicle in anti-cancer drug delivery.
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Affiliation(s)
- Amir Roointan
- Department of Medical Biotechnology, School of Advanced Medical Sciences and Technologies, Shiraz University of Medical Sciences, Shiraz, Iran
| | - Javad Farzanfar
- Pharmaceutical Sciences Research Center, Shiraz University of Medical Sciences, Shiraz, Iran
| | - Soliman Mohammadi-Samani
- Department of Pharmaceutics, Faculty of Pharmacy, Shiraz University of Medical Sciences, Shiraz, Iran
| | - Abbas Behzad-Behbahani
- Diagnostic Laboratory Sciences and Technology Research Center, School of Paramedical Sciences, Shiraz University of Medical Sciences, Shiraz, Iran
| | - Fatemeh Farjadian
- Pharmaceutical Sciences Research Center, Shiraz University of Medical Sciences, Shiraz, Iran.
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Li J, Huang Y, Song J, Li X, Zhang X, Zhou Z, Chen D, Ma PX, Peng W, Wang W, Zhou G. Cartilage regeneration using arthroscopic flushing fluid-derived mesenchymal stem cells encapsulated in a one-step rapid cross-linked hydrogel. Acta Biomater 2018; 79:202-215. [PMID: 30165202 DOI: 10.1016/j.actbio.2018.08.029] [Citation(s) in RCA: 57] [Impact Index Per Article: 9.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/05/2018] [Revised: 08/14/2018] [Accepted: 08/23/2018] [Indexed: 01/22/2023]
Abstract
Many attempts have been made to repair articular cartilage defects, including mesenchymal stem cell (MSC)-based tissue engineering strategies. Although this approach shows promise, optimizing MSC sources and their delivery is challenging. This study was designed to test the feasibility of using MSCs found in the human arthroscopic flushing fluid (AFF) for cartilage regeneration, by incorporating them into a newly developed one-step rapid cross-linking hyper-branched polyPEGDA/HA hydrogel. AFF-MSCs were isolated from the original intra-articular flushing fluid of 10 patients prior to arthroscopic procedures. The hydrogel was fabricated with hyper-branched polyPEGDA and thiolated hyaluronic acid (HA). In vitro assays demonstrated that AFF-MSCs possessed the typical MSC morphology and phenotype, and maintained chondrogenic differentiation properties when encapsulated within the hydrogel. The AFF-MSC/hydrogel composite could significantly repair full-thickness cartilage defects generated in a rat model after 8 weeks of implantation; smooth cartilage was formed with evidence of hyaline cartilage formation. These data suggest that human AFF-MSCs are a novel and abundant MSC source that have high therapeutic value for cartilage regeneration. STATEMENT OF SIGNIFICANCE Many attempts have been made to repair the defects of articular cartilage, including mesenchymal stem cell (MSC)-based tissue engineering strategies. Optimizing MSC sources and their delivery approaches still remain clinically challenging. Recent studies determined that MSCs derived from synovium and synovial fluid exhibited superior chondrogenic potential. However, no feasible methods to harvest these human tissues and cells have been impeding them for clinical application. Hereby, we explored a simple and easy accessible approach to obtain a new stem cell source from arthroscopic flushing fluid (AFF-MSCs), which probably contains plenty of MSCs from synovium and synovial fluid. Further experiments demonstrated that encapsulation of these stem cells with one-step rapid cross-linked polyPEGDA/HA hydrogel held very encouraging potential for cartilage regeneration.
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Dong Y, Rodrigues M, Kwon SH, Li X, A S, Brett EA, Elvassore N, Wang W, Gurtner GC. Acceleration of Diabetic Wound Regeneration using an In Situ-Formed Stem-Cell-Based Skin Substitute. Adv Healthc Mater 2018; 7:e1800432. [PMID: 30004192 DOI: 10.1002/adhm.201800432] [Citation(s) in RCA: 47] [Impact Index Per Article: 7.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/23/2018] [Revised: 05/31/2018] [Indexed: 02/06/2023]
Abstract
Chronic diabetic ulcers are a common complication in patients with diabetes, often leading to lower limb amputations and even mortality. Stem cells have shown promise in promoting cutaneous wound healing by modulating inflammation, angiogenesis, and re-epithelialization. However, more effective delivery and engraftment strategies are needed to prolong transplanted stem cell lifespan and their pro-healing functions in a chronic wound environment to improve skin regeneration. In this study, an injectable poly(ethylene glycol) (PEG)-gelatin-based hydrogel system is examined to create a functional stem cell niche for the delivery of adipose-derived stem cells (ASCs) into diabetic wounds. Human ASCs are encapsulated into the in situ crosslinked hydrogels and cultured in a 3D topography. The encapsulated cells are well attached and spread inside the hydrogels, retaining viability, proliferation, and metabolic activity up to three weeks in vitro. Allogeneic ASCs are delivered to diabetic wounds by this hydrogel vehicle. It is found that stem cell retention is significantly improved in vivo with vehicle-mediated delivery. The ASC-hydrogel-based treatment decreases inflammatory cell infiltration, enhances neovascularization, and remarkably accelerates wound closure in diabetic mice. Together, these findings suggest this conveniently-applicable ASC-hydrogel-based skin substitute provides a promising potential for the treatment of chronic diabetic wounds.
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Affiliation(s)
- Yixiao Dong
- Shanghai Institute for Advanced Immunochemical Studies; ShanghaiTech University; Shanghai 201210 China
| | - Melanie Rodrigues
- Department of Surgery; Stanford University School of Medicine; Stanford CA 94305 USA
| | - Sun Hyung Kwon
- Department of Surgery; Stanford University School of Medicine; Stanford CA 94305 USA
| | - Xiaolin Li
- Charles Institute of Dermatology; School of Medicine and Medical Science; University College Dublin; Dublin 4 Ireland
| | - Sigen A
- Charles Institute of Dermatology; School of Medicine and Medical Science; University College Dublin; Dublin 4 Ireland
| | - Elizabeth Anne Brett
- Department of Surgery; Stanford University School of Medicine; Stanford CA 94305 USA
| | - Nicola Elvassore
- Shanghai Institute for Advanced Immunochemical Studies; ShanghaiTech University; Shanghai 201210 China
| | - Wenxin Wang
- Charles Institute of Dermatology; School of Medicine and Medical Science; University College Dublin; Dublin 4 Ireland
| | - Geoffrey C. Gurtner
- Department of Surgery; Stanford University School of Medicine; Stanford CA 94305 USA
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Kong L, Jiang B. Free radical branching homopolymerization of asymmetrical divinyl monomers in isopropyl alcohol. POLYMER 2018. [DOI: 10.1016/j.polymer.2018.07.081] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/28/2022]
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Xu Q, A S, Gao Y, Guo L, Creagh-Flynn J, Zhou D, Greiser U, Dong Y, Wang F, Tai H, Liu W, Wang W, Wang W. A hybrid injectable hydrogel from hyperbranched PEG macromer as a stem cell delivery and retention platform for diabetic wound healing. Acta Biomater 2018; 75:63-74. [PMID: 29803782 DOI: 10.1016/j.actbio.2018.05.039] [Citation(s) in RCA: 176] [Impact Index Per Article: 29.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/10/2018] [Revised: 05/09/2018] [Accepted: 05/24/2018] [Indexed: 12/15/2022]
Abstract
The injectable hydrogel with desirable biocompatibility and tunable properties can improve the efficacy of stem cell-based therapy. However, the development of injectable hydrogel remains a great challenge due to the restriction of crosslinking efficiency, mechanical properties, and potential toxicity. Here, we report that a new injectable hydrogel system was fabricated from hyperbranched multi-acrylated poly(ethylene glycol) macromers (HP-PEGs) and thiolated hyaluronic acid (HA-SH) and used as a stem cell delivery and retention platform. The new HP-PEGs were synthesized via in situ reversible addition fragmentation chain transfer (RAFT) polymerization using an FDA approved anti-alcoholic drug-Disulfiram (DS) as the RAFT agent precursor. HP-PEGs can form injectable hydrogels with HA-SH rapidly via thiol-ene click reaction under physiological conditions. The hydrogels exhibited stable mechanical properties, non-swelling and anti-fouling properties. Hydrogels encapsulating adipose-derived stem cells (ADSCs) have demonstrated promising regenerative capabilities such as the maintenance of ADSCs' stemness and secretion abilities. The ADSCs embedded hydrogels were tested on the treatment of diabetic wound in a diabetic murine animal model, showing enhanced wound healing. STATEMENT OF SIGNIFICANCE Diabetic wounds, which are a severe type of diabetes, have become one of the most serious clinical problems. There is a great promise in the delivery of adipose stem cells into wound sites using injectable hydrogels that can improve diabetic wound healing. Due to the biocompatibility of poly(ethylene glycol) diacrylate (PEGDA), we developed an in situ RAFT polymerization approach using anti-alcoholic drug-Disulfiram (DS) as a RAFT agent precursor to achieve hyperbranched PEGDA (HP-PEG). HP-PEG can form an injectable hydrogel by crosslinking with thiolated hyaluronic acid (HA-SH). ADSCs can maintain their regenerative ability and be delivered into the wound sites. Hence, diabetic wound healing process was remarkably promoted, including inhibition of inflammation, enhanced angiogenesis and re-epithelialization. Taken together, the ADSCs-seeded injectable hydrogel may be a promising candidate for diabetic wound treatment.
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Zhu J, Li F, Wang X, Yu J, Wu D. Hyaluronic Acid and Polyethylene Glycol Hybrid Hydrogel Encapsulating Nanogel with Hemostasis and Sustainable Antibacterial Property for Wound Healing. ACS APPLIED MATERIALS & INTERFACES 2018; 10:13304-13316. [PMID: 29607644 DOI: 10.1021/acsami.7b18927] [Citation(s) in RCA: 221] [Impact Index Per Article: 36.8] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/08/2023]
Abstract
Immediate hemorrhage control and anti-infection play important roles in the wound management. Besides, a moist environment is also beneficial for wound healing. Hydrogels are promising materials in urgent hemostasis and drug release. However, hydrogels have the disadvantage of rapid release profiles, leading to the exposure to high drug concentrations. In this study, we constructed hybrid hydrogels with rapid hemostasis and sustainable antibacterial property combining aminoethyl methacrylate hyaluronic acid (HA-AEMA) and methacrylated methoxy polyethylene glycol (mPEG-MA) hybrid hydrogels and chlorhexidine diacetate (CHX)-loaded nanogels. The CHX-loaded nanogels (CLNs) were prepared by the enzyme degradation of CHX-loaded lysine-based hydrogels. The HA-AEMA and mPEG-MA hybrid hydrogel loaded with CLNs (labeled as Gel@CLN) displayed a three-dimensional microporous structure and exhibited excellent swelling, mechanical property, and low cytotoxicity. The Gel@CLN hydrogel showed a prolonged release period of CHX over 240 h and the antibacterial property over 10 days. The hemostasis and wound-healing properties were evaluated in vivo using a mouse model. The results showed that hydrogel had the rapid hemostasis capacity and accelerated wound healing. In summary, CLN-loaded hydrogels may be excellent candidates as hemostasis and anti-infection materials for the wound dressing application.
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Affiliation(s)
- Jie Zhu
- Key Laboratory of Textile Science and Technology, Ministry of Education, College of Textiles , Donghua University , Songjiang District , Shanghai 201620 , China
| | - Faxue Li
- Key Laboratory of Textile Science and Technology, Ministry of Education, College of Textiles , Donghua University , Songjiang District , Shanghai 201620 , China
| | - Xueli Wang
- Modern Textile Institute , Donghua University , Changning District , Shanghai 200051 , China
| | - Jianyong Yu
- Modern Textile Institute , Donghua University , Changning District , Shanghai 200051 , China
| | - Dequn Wu
- Key Laboratory of Textile Science and Technology, Ministry of Education, College of Textiles , Donghua University , Songjiang District , Shanghai 201620 , China
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Huang Q, Zou Y, Arno MC, Chen S, Wang T, Gao J, Dove AP, Du J. Hydrogel scaffolds for differentiation of adipose-derived stem cells. Chem Soc Rev 2018; 46:6255-6275. [PMID: 28816316 DOI: 10.1039/c6cs00052e] [Citation(s) in RCA: 204] [Impact Index Per Article: 34.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/15/2022]
Abstract
Natural extracellular matrices (ECMs) have been widely used as a support for the adhesion, migration, differentiation, and proliferation of adipose-derived stem cells (ADSCs). However, poor mechanical behavior and unpredictable biodegradation properties of natural ECMs considerably limit their potential for bioapplications and raise the need for different, synthetic scaffolds. Hydrogels are regarded as the most promising alternative materials as a consequence of their excellent swelling properties and their resemblance to soft tissues. A variety of strategies have been applied to create synthetic biomimetic hydrogels, and their biophysical and biochemical properties have been modulated to be suitable for cell differentiation. In this review, we first give an overview of common methods for hydrogel preparation with a focus on those strategies that provide potential advantages for ADSC encapsulation, before summarizing the physical properties of hydrogel scaffolds that can act as biological cues. Finally, the challenges in the preparation and application of hydrogels with ADSCs are explored and the perspectives are proposed for the next generation of scaffolds.
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Affiliation(s)
- Qiutong Huang
- Department of Polymeric Materials, School of Materials Science and Engineering, Tongji University, 4800 Caoan Road, Shanghai, 201804, China.
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Zhang Q, Lv Y, Liu M, Wang X, Mi Y, Wang Q. Nanoinitiator for enzymatic anaerobic polymerization and graft enhancement of gelatin-PAAM hydrogel. J Mater Chem B 2018; 6:1402-1409. [PMID: 32254425 DOI: 10.1039/c7tb03244g] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
As an emerging method for mildly molding polymer hydrogel bioscaffolds, the enzymatically polymerized system is mainly based on the screening of various oxidoreductases to produce radicals, but the design of multifunctional nanoinitiators to facilitate hydrogel performance remains challenging. Here, we utilize N-hydroxyimide-modified silica nanoparticles as nanoinitiators to simultaneously trigger glucose oxidase anaerobic polymerization and nanoparticle-grafting enhancement of the gelatin-polyacrylamide (PAAM) hydrogel. The enzyme-nanoinitiator system produced nitrogen radicals, which were further converted into carbon radicals via GOx-catalyzed glucose reduction, as confirmed by electron paramagnetic resonance (EPR) analysis. Our stretchable hydrogel has a 12-fold increased fracture energy relative to traditional hydrogel due to grafting enhancement by the nanoinitiator. The temperature-dependent physical crosslinking of gelatin endowed our hydrogel facile printing ability. Cytotoxicity assay and 3D cell culture demonstrated the low toxicity of our hydrogel. As the first example of the use of nanoinitiators for enzymatic polymerization, this work provides a biocompatible platform to prepare or print hydrogel bioscaffolds with the required mechanical strength.
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Affiliation(s)
- Qi Zhang
- School of Chemical Science and Engineering, Tongji University, Shanghai 200092, China.
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28
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Huang J, Jiang X. Injectable and Degradable pH-Responsive Hydrogels via Spontaneous Amino-Yne Click Reaction. ACS APPLIED MATERIALS & INTERFACES 2018; 10:361-370. [PMID: 29235844 DOI: 10.1021/acsami.7b18141] [Citation(s) in RCA: 71] [Impact Index Per Article: 11.8] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/07/2023]
Abstract
Injectable hydrogels have attracted increasing attention in tissue regeneration and local drug delivery applications. Current click reactions for preparing injectable hydrogels often require a photoinitiator or catalyst, which may be toxic and may involve complex synthesis of precursors. Here, we report a facile and inexpensive method to prepare injectable and degradable hydrogels via spontaneous amino-yne click reaction without using any initiator or catalyst under physiological conditions based on telechelic electron-deficient dipropiolate ester of polyethylene glycol and water-soluble commercially available carboxymethyl chitosan (CMC). The gelation time, mechanical property, and degradation rate of the hydrogels could be adjusted by varying CMC concentrations and stoichiometric ratios. The reversible pH-induced sol-gel transitions of the hydrogel are presented and the pH-controlled drug release behaviors are demonstrated, of which the mechanism is discussed. In vitro cytotoxicity assays and in vivo in situ injection study of the CMC-based hydrogels showed favorable gel formation, nontoxicity, and good tissue biocompatibility. Therefore, these biodegradable and injectable hydrogels prepared by spontaneous amino-yne click reaction hold potential for tissue engineering and other biomedical applications.
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Affiliation(s)
- Jiachang Huang
- Key Laboratory of Biomedical Polymers of Ministry of Education & Department of Chemistry, Wuhan University , Luojia Hill, Wuhan 430072, P. R. China
| | - Xulin Jiang
- Key Laboratory of Biomedical Polymers of Ministry of Education & Department of Chemistry, Wuhan University , Luojia Hill, Wuhan 430072, P. R. China
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29
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Synthesis of fluorescent dendrimers with aggregation-induced emission features through a one-pot multi-component reaction and their utilization for biological imaging. J Colloid Interface Sci 2018; 509:327-333. [PMID: 28918375 DOI: 10.1016/j.jcis.2017.09.039] [Citation(s) in RCA: 10] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/08/2017] [Revised: 09/02/2017] [Accepted: 09/05/2017] [Indexed: 01/15/2023]
Abstract
Hyperbranched polymers have attracted wide research attention owing to their unique topological structure, physicochemical properties and great potential for applications such asadditives, drug delivery, catalysts and nanotechnology. Among these, the polyamidoamine(PAMAM) dendrimers are some of the most important dendrimers. However, the synthesis and biomedical applications of fluorescent PAMAM dendrimers have received only limited attention. In this work, we present a rather effective and convenient approach for synthesis of fluorescent PAMAM dendrimers with aggregation-induced emission (AIE) properties through a one-pot catalyst-free Mannich reaction under rather mild experimental conditions (e.g., low reaction temperature, air atmosphere in the presence of water). The obtained AIE-active amphiphiles (PhE-PAD) could self-assemble into fluorescent organic nanoparticles (FONs). The obtained AIE-active FONs (PhE-PAD FONs) were fully characterized, and their successful construction was confirmed by 1H NMR spectroscopy, FT-IR spectroscopy and transmission electron microscopy. Fluorescence and UV-Visible absorption spectroscopy results demonstrated that the final PhE-PAD FONs showed strong yellow fluorescence, desirable photostability and good water dispersity. The cell viability evaluation and confocal laser scanning microscope imaging results suggested that PhE-PAD FONs possessed low cytotoxicity and excellent biocompatibility. Taken together, these results demonstrate that we have developed a facile and efficient strategy for the fabrication of AIE-active FONs, which possess many desirable features for biomedical applications.
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30
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A S, Xu Q, McMichael P, Gao Y, Li X, Wang X, Greiser U, Zhou D, Wang W. A facile one-pot synthesis of acrylated hyaluronic acid. Chem Commun (Camb) 2018; 54:1081-1084. [DOI: 10.1039/c7cc08648b] [Citation(s) in RCA: 17] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/18/2022]
Abstract
The synthesis of acrylated hyaluronic acid (HA-A) was presented via a facile one-pot reaction method which eliminates laborious purification and the risks of HA degradation.
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Affiliation(s)
- Sigen A
- Charles Institute of Dermatology
- School of Medicine
- University College Dublin
- Dublin 4
- Ireland
| | - Qian Xu
- Charles Institute of Dermatology
- School of Medicine
- University College Dublin
- Dublin 4
- Ireland
| | - Peter McMichael
- Institut National Polytechnique – Ecole Nationale Supérieure des Ingénieurs en Arts Chimiques Et Technologiques (INP-ENSIACET)
- Toulouse
- France
| | - Yongsheng Gao
- Charles Institute of Dermatology
- School of Medicine
- University College Dublin
- Dublin 4
- Ireland
| | - Xiaolin Li
- Charles Institute of Dermatology
- School of Medicine
- University College Dublin
- Dublin 4
- Ireland
| | - Xi Wang
- Charles Institute of Dermatology
- School of Medicine
- University College Dublin
- Dublin 4
- Ireland
| | - Udo Greiser
- Charles Institute of Dermatology
- School of Medicine
- University College Dublin
- Dublin 4
- Ireland
| | - Dezhong Zhou
- Charles Institute of Dermatology
- School of Medicine
- University College Dublin
- Dublin 4
- Ireland
| | - Wenxin Wang
- Charles Institute of Dermatology
- School of Medicine
- University College Dublin
- Dublin 4
- Ireland
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31
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Maiti B, Haldar U, Rajasekhar T, De P. Functional-Polymer Library through Post-Polymerization Modification of Copolymers Having Oleate and Pentafluorophenyl Pendants. Chemistry 2017; 23:15156-15165. [PMID: 28850744 DOI: 10.1002/chem.201703151] [Citation(s) in RCA: 10] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/07/2017] [Indexed: 01/11/2023]
Affiliation(s)
- Binoy Maiti
- Department of Chemical Sciences; Indian Institute of Science Education and Research Kolkata; Mohanpur Nadia, West Bengal 741246 India
| | - Ujjal Haldar
- Department of Chemical Sciences; Indian Institute of Science Education and Research Kolkata; Mohanpur Nadia, West Bengal 741246 India
| | - Tota Rajasekhar
- Department of Chemical Sciences; Indian Institute of Science Education and Research Kolkata; Mohanpur Nadia, West Bengal 741246 India
| | - Priyadarsi De
- Department of Chemical Sciences; Indian Institute of Science Education and Research Kolkata; Mohanpur Nadia, West Bengal 741246 India
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32
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Chang B, Ahuja N, Ma C, Liu X. Injectable scaffolds: Preparation and application in dental and craniofacial regeneration. MATERIALS SCIENCE & ENGINEERING. R, REPORTS : A REVIEW JOURNAL 2017; 111:1-26. [PMID: 28649171 PMCID: PMC5478172 DOI: 10.1016/j.mser.2016.11.001] [Citation(s) in RCA: 130] [Impact Index Per Article: 18.6] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/21/2023]
Abstract
Injectable scaffolds are appealing for tissue regeneration because they offer many advantages over pre-formed scaffolds. This article provides a comprehensive review of the injectable scaffolds currently being investigated for dental and craniofacial tissue regeneration. First, we provide an overview of injectable scaffolding materials, including natural, synthetic, and composite biomaterials. Next, we discuss a variety of characteristic parameters and gelation mechanisms of the injectable scaffolds. The advanced injectable scaffolding systems developed in recent years are then illustrated. Furthermore, we summarize the applications of the injectable scaffolds for the regeneration of dental and craniofacial tissues that include pulp, dentin, periodontal ligament, temporomandibular joint, and alveolar bone. Finally, our perspectives on the injectable scaffolds for dental and craniofacial tissue regeneration are offered as signposts for the future advancement of this field.
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Affiliation(s)
- Bei Chang
- Department of Biomedical Sciences, Texas A&M University College of Dentistry, Dallas, TX 75246, USA
| | - Neelam Ahuja
- Department of Biomedical Sciences, Texas A&M University College of Dentistry, Dallas, TX 75246, USA
| | - Chi Ma
- Department of Biomedical Sciences, Texas A&M University College of Dentistry, Dallas, TX 75246, USA
| | - Xiaohua Liu
- Department of Biomedical Sciences, Texas A&M University College of Dentistry, Dallas, TX 75246, USA
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33
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Liu G, Li Y, Yang L, Wei Y, Wang X, Wang Z, Tao L. Cytotoxicity study of polyethylene glycol derivatives. RSC Adv 2017. [DOI: 10.1039/c7ra00861a] [Citation(s) in RCA: 98] [Impact Index Per Article: 14.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022] Open
Abstract
Cytotoxicity of PEG oligomers (with different molecular weights) and PEG based monomers (with different chain end groups) was studied in detail.
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Affiliation(s)
- Guoqiang Liu
- Key Laboratory of Bioorganic Phosphorus Chemistry & Chemical Biology (Ministry of Education)
- Department of Chemistry
- Tsinghua University
- Beijing 100084
- P. R. China
| | - Yongsan Li
- Key Laboratory of Bioorganic Phosphorus Chemistry & Chemical Biology (Ministry of Education)
- Department of Chemistry
- Tsinghua University
- Beijing 100084
- P. R. China
| | - Lei Yang
- Cancer Institute & Hospital
- Peking Union Medical College & Chinese Academy of Medical Science
- Beijing 100021
- P. R. China
| | - Yen Wei
- Key Laboratory of Bioorganic Phosphorus Chemistry & Chemical Biology (Ministry of Education)
- Department of Chemistry
- Tsinghua University
- Beijing 100084
- P. R. China
| | - Xing Wang
- The State Key Laboratory of Chemical Resource Engineering
- Beijing University of Chemical Technology
- Beijing 100029
- P. R. China
| | - Zhiming Wang
- College of Pharmaceutical Science
- Zhejiang Chinese Medical University
- Hangzhou
- P. R. China
| | - Lei Tao
- Key Laboratory of Bioorganic Phosphorus Chemistry & Chemical Biology (Ministry of Education)
- Department of Chemistry
- Tsinghua University
- Beijing 100084
- P. R. China
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34
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Wei Q, Xu W, Zhang Q, Zhang S, Cheng L, Wang Q. Dynamic hydrogels produced via monoamine oxidase B-catalyzed deamination and aldimine crosslinking for 3D printing. J Mater Chem B 2017; 5:5092-5095. [PMID: 32264093 DOI: 10.1039/c7tb01108c] [Citation(s) in RCA: 20] [Impact Index Per Article: 2.9] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
Dynamic hydrogels of amino-containing polysaccharides (or proteins) and benzylamine-difunctionalized PEG were prepared via an oxidative deamination reaction catalyzed by MAO B.
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Affiliation(s)
- Qingcong Wei
- School of Chemical Science and Engineering
- Tongji University
- Shanghai 200092
- China
- School of Chemistry and Chemical Engineering
| | - Wei Xu
- Spine Division of Orthopaedics Department
- Tongji Hospital
- Tongji University School of Medicine
- Shanghai 200065
- China
| | - Qi Zhang
- School of Chemical Science and Engineering
- Tongji University
- Shanghai 200092
- China
| | - Shuang Zhang
- School of Chemical Science and Engineering
- Tongji University
- Shanghai 200092
- China
| | - Liming Cheng
- Spine Division of Orthopaedics Department
- Tongji Hospital
- Tongji University School of Medicine
- Shanghai 200065
- China
| | - Qigang Wang
- School of Chemical Science and Engineering
- Tongji University
- Shanghai 200092
- China
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35
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Wong EHH, Khin MM, Ravikumar V, Si Z, Rice SA, Chan-Park MB. Modulating Antimicrobial Activity and Mammalian Cell Biocompatibility with Glucosamine-Functionalized Star Polymers. Biomacromolecules 2016; 17:1170-8. [PMID: 26859230 DOI: 10.1021/acs.biomac.5b01766] [Citation(s) in RCA: 66] [Impact Index Per Article: 8.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/11/2022]
Abstract
The development of novel reagents and antibiotics for combating multidrug resistance bacteria has received significant attention in recent years. In this study, new antimicrobial star polymers (14-26 nm in diameter) that consist of mixtures of polylysine and glycopolymer arms were developed and were shown to possess antimicrobial efficacy toward Gram positive bacteria including methicillin-resistant Staphylococcus aureus (MRSA) and vancomycin-resistant Enterococcus (VRE) (with MIC values as low as 16 μg mL(-1)) while being non-hemolytic (HC50 > 10,000 μg mL(-1)) and exhibit excellent mammalian cell biocompatibility. Structure function analysis indicated that the antimicrobial activity and mammalian cell biocompatibility of the star nanoparticles could be optimized by modifying the molar ratio of polylysine to glycopolymers arms. The technology described herein thus represents an innovative approach that could be used to fight deadly infectious diseases.
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Affiliation(s)
- Edgar H H Wong
- School of Chemical and Biomedical Engineering, and ‡Centre for Antimicrobial Bioengineering, Nanyang Technological University , Singapore 637459.,The Singapore Centre for Environmental Life Sciences Engineering, and ∥School of Biological Sciences, Nanyang Technological University , Singapore 637551
| | - Mya Mya Khin
- School of Chemical and Biomedical Engineering, and ‡Centre for Antimicrobial Bioengineering, Nanyang Technological University , Singapore 637459.,The Singapore Centre for Environmental Life Sciences Engineering, and ∥School of Biological Sciences, Nanyang Technological University , Singapore 637551
| | - Vikashini Ravikumar
- School of Chemical and Biomedical Engineering, and ‡Centre for Antimicrobial Bioengineering, Nanyang Technological University , Singapore 637459.,The Singapore Centre for Environmental Life Sciences Engineering, and ∥School of Biological Sciences, Nanyang Technological University , Singapore 637551
| | - Zhangyong Si
- School of Chemical and Biomedical Engineering, and ‡Centre for Antimicrobial Bioengineering, Nanyang Technological University , Singapore 637459.,The Singapore Centre for Environmental Life Sciences Engineering, and ∥School of Biological Sciences, Nanyang Technological University , Singapore 637551
| | - Scott A Rice
- School of Chemical and Biomedical Engineering, and ‡Centre for Antimicrobial Bioengineering, Nanyang Technological University , Singapore 637459.,The Singapore Centre for Environmental Life Sciences Engineering, and ∥School of Biological Sciences, Nanyang Technological University , Singapore 637551
| | - Mary B Chan-Park
- School of Chemical and Biomedical Engineering, and ‡Centre for Antimicrobial Bioengineering, Nanyang Technological University , Singapore 637459.,The Singapore Centre for Environmental Life Sciences Engineering, and ∥School of Biological Sciences, Nanyang Technological University , Singapore 637551
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36
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Dong D, Li J, Cui M, Wang J, Zhou Y, Luo L, Wei Y, Ye L, Sun H, Yao F. In Situ "Clickable" Zwitterionic Starch-Based Hydrogel for 3D Cell Encapsulation. ACS APPLIED MATERIALS & INTERFACES 2016; 8:4442-4455. [PMID: 26817499 DOI: 10.1021/acsami.5b12141] [Citation(s) in RCA: 64] [Impact Index Per Article: 8.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/05/2023]
Abstract
Three-dimensional (3D) cell encapsulation in hydrogel provides superb methods to investigate the biochemical cues in directing cellular fate and behaviors outside the organism, the primary step of which is to establish suitable "blank platform" to mimic and simplify native ECM microenvironment. In this study, zwitterionic starch-based "clickable" hydrogels were fabricated via a "copper- and light- free" Michael-type "thiol-ene" addition reaction between acylated-modified sulfobetaine-derived starch (SB-ST-A) and dithiol-functionalized poly(ethylene glycol) (PEG-SH). By incorporating antifouling SB-ST and PEG, the hydrogel system would be excellently protected from nontarget protein adsorption to act as a "blank platform". The hydrogels could rapidly gel under physiological conditions in less than 7 min. Dynamic rheology experiments suggested the stiffness of the hydrogel was close to the native tissues, and the mechanical properties as well as the gelation times and swelling behaviors could be easily tuned by varying the precursor proportions. The protein and cell adhesion assays demonstrated that the hydrogel surface could effectively resist nonspecific protein and cell adhesion. The degradation study in vitro confirmed that the hydrogel was biodegradable. A549 cells encapsulated in the hydrogel maintained high viability (up to 93%) and started to proliferate in number and extend in morphology after 2 days' culture. These results indicated the hydrogel presented here could be a potential candidate as "blank platform" for 3D cell encapsulation and biochemical cues induced cellular behavior investigation in vitro.
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Affiliation(s)
- Dianyu Dong
- School of Chemical Engineering and Technology, Tianjin University , Tianjin 300072, China
| | - Junjie Li
- Department of Advanced Interdisciplinary Studies, Institute of Basic Medical Sciences and Tissue Engineering Research Center, Academy of Military Medical Sciences , Beijing 100850, China
| | - Man Cui
- Department of Basic Medical Sciences, North China University of Science and Technology , Tangshan 063000, China
| | - Jinmei Wang
- School of Chemical Engineering and Technology, Tianjin University , Tianjin 300072, China
| | - Yuhang Zhou
- School of Chemical Engineering and Technology, Tianjin University , Tianjin 300072, China
| | - Liu Luo
- School of Chemical Engineering and Technology, Tianjin University , Tianjin 300072, China
| | - Yufei Wei
- School of Chemical Engineering and Technology, Tianjin University , Tianjin 300072, China
| | - Lei Ye
- School of Chemical Engineering and Technology, Tianjin University , Tianjin 300072, China
| | - Hong Sun
- Department of Basic Medical Sciences, North China University of Science and Technology , Tangshan 063000, China
| | - Fanglian Yao
- School of Chemical Engineering and Technology, Tianjin University , Tianjin 300072, China
- Key Laboratory of Systems Bioengineering, Ministry of Education, Tianjin University , Tianjin 300072, China
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37
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Absil R, Çakir S, Gabriele S, Dubois P, Barner-Kowollik C, Du Prez F, Mespouille L. Click reactive microgels as a strategy towards chemically injectable hydrogels. Polym Chem 2016. [DOI: 10.1039/c6py01663d] [Citation(s) in RCA: 10] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
Doubly crosslinked microgels (DX microgels) are hydrogels constructed by covalently interlinked microgel particles, offering two levels of hierarchy within the network, the first one being the microgel and the second being the interlinked microgel network.
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Affiliation(s)
- Rémi Absil
- Laboratory of Polymeric and Composite Materials (LPCM)
- Center of Innovation and Research in Materials and Polymers (CIRMAP)
- Health and Materials Research Institutes
- University of Mons (UMons)
- 7000 Mons
| | - Seda Çakir
- Polymer Chemistry Research Group
- Ghent University
- B-9000 Ghent
- Belgium
| | - Sylvain Gabriele
- Laboratoire Interfaces & Fluides complexes
- CIRMAP
- Research Institute for Biosciences
- University of Mons
- 7000 Mons
| | - Philippe Dubois
- Laboratory of Polymeric and Composite Materials (LPCM)
- Center of Innovation and Research in Materials and Polymers (CIRMAP)
- Health and Materials Research Institutes
- University of Mons (UMons)
- 7000 Mons
| | - Christopher Barner-Kowollik
- Preparative Macromolecular Chemistry
- Institut für Technische Chemie und Polymerchemie
- Karlsruhe Institute of Technology (KIT)
- 76128 Karlsruhe
- Germany
| | - Filip Du Prez
- Polymer Chemistry Research Group
- Ghent University
- B-9000 Ghent
- Belgium
| | - Laetitia Mespouille
- Laboratory of Polymeric and Composite Materials (LPCM)
- Center of Innovation and Research in Materials and Polymers (CIRMAP)
- Health and Materials Research Institutes
- University of Mons (UMons)
- 7000 Mons
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38
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Ban Q, Kong J. Intramolecular cyclization of long-chain hyperbranched polymers (HyperMacs) from A2 + Bn step-wise polymerization. Polym Chem 2016. [DOI: 10.1039/c6py00986g] [Citation(s) in RCA: 23] [Impact Index Per Article: 2.9] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
We presented a precise topological analysis on intramolecular cyclization for long-chain hyperbranched polymers via the new parameter of the macro-cyclic index (m-CI).
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Affiliation(s)
- Qingfu Ban
- MOE Key Laboratory of Space Applied Physics and Chemistry
- Shaanxi Key Laboratory of Macromolecular Science and Technology
- School of Science
- Northwestern Polytechnical University
- Xi'an
| | - Jie Kong
- MOE Key Laboratory of Space Applied Physics and Chemistry
- Shaanxi Key Laboratory of Macromolecular Science and Technology
- School of Science
- Northwestern Polytechnical University
- Xi'an
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