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Ji D, Kim DY, Fan Z, Lee CS, Kim J. Hysteresis-Free, Elastic, and Tough Hydrogel with Stretch-Rate Independence and High Stability in Physiological Conditions. SMALL (WEINHEIM AN DER BERGSTRASSE, GERMANY) 2024; 20:e2309217. [PMID: 38133489 DOI: 10.1002/smll.202309217] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 11/08/2023] [Revised: 11/22/2023] [Indexed: 12/23/2023]
Abstract
Many existing synthetic hydrogels are inappropriate for repetitive motions because of large hysteresis, and their mechanical properties in warm and saline physiological conditions remain understudied. In this study, a stretch-rate-independent, hysteresis-free, elastic, and tough nanocomposite hydrogel that can maintain its mechanical properties in phosphate-buffered saline of 37 °C similar to warm and saline conditions of the human body is developed. The strength, stiffness, and toughness of the hydrogel are simultaneously reinforced by biomimetic silica nanoparticles with a surface of embedded circular polyamine chains. Such distinctive surfaces form robust interfacial interactions by local topological folding/entanglement with the polymer chains of the matrix. Load transfer from the soft polymer matrix to stiff nanoparticles, along with the elastic sliding/unfolding/disentanglement of polymer chains, overcomes the traditional trade-off between strength/stiffness and toughness and allows for hysteresis-free, strain-rate-independent, and elastic behavior. This robust reinforcement is sustained in warm phosphate-buffered saline. These properties demonstrate the application potential of the developed hydrogel as a soft, elastic, and tough bio-strain sensor that can detect dynamic motions across various deformation speeds and ranges. The findings provide a simple yet effective approach to developing practical hydrogels with a desirable combination of strength/stiffness and toughness, in a fully swollen and equilibrated state.
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Affiliation(s)
- Donghwan Ji
- School of Chemical Engineering, Sungkyunkwan University (SKKU), Suwon, 16419, Republic of Korea
| | - Dong-Yeong Kim
- Department of Chemical Engineering and Applied Chemistry, Chungnam National University (CNU), 99 Daehak-ro, Yuseong-gu, Daejeon, 34134, Republic of Korea
| | - Ziwen Fan
- School of Chemical Engineering, Sungkyunkwan University (SKKU), Suwon, 16419, Republic of Korea
| | - Chang-Soo Lee
- Department of Chemical Engineering and Applied Chemistry, Chungnam National University (CNU), 99 Daehak-ro, Yuseong-gu, Daejeon, 34134, Republic of Korea
| | - Jaeyun Kim
- School of Chemical Engineering, Sungkyunkwan University (SKKU), Suwon, 16419, Republic of Korea
- Department of Health Sciences and Technology, Samsung Advanced Institute for Health Sciences & Technology (SAIHST), Sungkyunkwan University (SKKU), Suwon, 16419, Republic of Korea
- Biomedical Institute for Convergence at SKKU (BICS), Sungkyunkwan University (SKKU), Suwon, 16419, Republic of Korea
- Institute of Quantum Biophysics (IQB), Sungkyunkwan University (SKKU), Suwon, 16419, Republic of Korea
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2
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Han GY, Kwack HW, Kim YH, Je YH, Kim HJ, Cho CS. Progress of polysaccharide-based tissue adhesives. Carbohydr Polym 2024; 327:121634. [PMID: 38171653 DOI: 10.1016/j.carbpol.2023.121634] [Citation(s) in RCA: 2] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/22/2023] [Revised: 11/20/2023] [Accepted: 11/21/2023] [Indexed: 01/05/2024]
Abstract
Recently, polymer-based tissue adhesives (TAs) have gained the attention of scientists and industries as alternatives to sutures for sealing and closing wounds or incisions because of their ease of use, low cost, minimal tissue damage, and short application time. However, poor mechanical properties and weak adhesion strength limit the application of TAs, although numerous studies have attempted to develop new TAs with enhanced performance. Therefore, next-generation TAs with improved multifunctional properties are required. In this review, we address the requirements of polymeric TAs, adhesive characteristics, adhesion strength assessment methods, adhesion mechanisms, applications, advantages and disadvantages, and commercial products of polysaccharide (PS)-based TAs, including chitosan (CS), alginate (AL), dextran (DE), and hyaluronic acid (HA). Additionally, future perspectives are discussed.
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Affiliation(s)
- Gi-Yeon Han
- Program in Environmental Materials Science, Department of Agriculture, Forestry and Bioresources, Seoul National University, Seoul 08826, Republic of Korea
| | - Ho-Wook Kwack
- Program in Environmental Materials Science, Department of Agriculture, Forestry and Bioresources, Seoul National University, Seoul 08826, Republic of Korea
| | - Yo-Han Kim
- Department of Agricultural Biotechnology, Research Institute of Agriculture and Life Sciences, Seoul National University, Seoul 08826, Republic of Korea
| | - Yeon Ho Je
- Department of Agricultural Biotechnology, Research Institute of Agriculture and Life Sciences, Seoul National University, Seoul 08826, Republic of Korea
| | - Hyun-Joong Kim
- Program in Environmental Materials Science, Department of Agriculture, Forestry and Bioresources, Seoul National University, Seoul 08826, Republic of Korea.
| | - Chong-Su Cho
- Department of Agricultural Biotechnology, Research Institute of Agriculture and Life Sciences, Seoul National University, Seoul 08826, Republic of Korea.
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3
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Wu SJ, Wu J, Kaser SJ, Roh H, Shiferaw RD, Yuk H, Zhao X. A 3D printable tissue adhesive. Nat Commun 2024; 15:1215. [PMID: 38331971 PMCID: PMC10853267 DOI: 10.1038/s41467-024-45147-9] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/20/2023] [Accepted: 01/15/2024] [Indexed: 02/10/2024] Open
Abstract
Tissue adhesives are promising alternatives to sutures and staples for joining tissues, sealing defects, and immobilizing devices. However, existing adhesives mostly take the forms of glues or hydrogels, which offer limited versatility. We report a direct-ink-write 3D printable tissue adhesive which can be used to fabricate bioadhesive patches and devices with programmable architectures, unlocking new potential for application-specific designs. The adhesive is conformable and stretchable, achieves robust adhesion with wet tissues within seconds, and exhibits favorable biocompatibility. In vivo rat trachea and colon defect models demonstrate the fluid-tight tissue sealing capability of the printed patches, which maintained adhesion over 4 weeks. Moreover, incorporation of a blood-repelling hydrophobic matrix enables the printed patches to seal actively bleeding tissues. Beyond wound closure, the 3D printable adhesive has broad applicability across various tissue-interfacing devices, highlighted through representative proof-of-concept designs. Together, this platform offers a promising strategy toward developing advanced tissue adhesive technologies.
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Affiliation(s)
- Sarah J Wu
- Department of Mechanical Engineering, Massachusetts Institute of Technology, Cambridge, MA, 02139, USA
| | - Jingjing Wu
- Department of Mechanical Engineering, Massachusetts Institute of Technology, Cambridge, MA, 02139, USA
| | - Samuel J Kaser
- Department of Chemistry, Massachusetts Institute of Technology, Cambridge, MA, 02139, USA
| | - Heejung Roh
- Department of Mechanical Engineering, Massachusetts Institute of Technology, Cambridge, MA, 02139, USA
| | - Ruth D Shiferaw
- Department of Mechanical Engineering, Massachusetts Institute of Technology, Cambridge, MA, 02139, USA
| | - Hyunwoo Yuk
- Department of Mechanical Engineering, Massachusetts Institute of Technology, Cambridge, MA, 02139, USA.
- SanaHeal, Inc., Cambridge, MA, USA.
| | - Xuanhe Zhao
- Department of Mechanical Engineering, Massachusetts Institute of Technology, Cambridge, MA, 02139, USA.
- Department of Civil and Environmental Engineering, Massachusetts Institute of Technology, Cambridge, MA, 02139, USA.
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4
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Park J, Kim TY, Kim Y, An S, Kim KS, Kang M, Kim SA, Kim J, Lee J, Cho S, Seo J. A Mechanically Resilient and Tissue-Conformable Hydrogel with Hemostatic and Antibacterial Capabilities for Wound Care. ADVANCED SCIENCE (WEINHEIM, BADEN-WURTTEMBERG, GERMANY) 2023; 10:e2303651. [PMID: 37705116 PMCID: PMC10602564 DOI: 10.1002/advs.202303651] [Citation(s) in RCA: 6] [Impact Index Per Article: 6.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 06/05/2023] [Revised: 08/05/2023] [Indexed: 09/15/2023]
Abstract
Hydrogels are used in wound dressings because of their tissue-like softness and biocompatibility. However, the clinical translation of hydrogels remains challenging because of their long-term stability, water swellability, and poor tissue adhesiveness. Here, tannic acid (TA) is introduced into a double network (DN) hydrogel consisting of poly(vinyl alcohol) (PVA) and poly(acrylic acid) (PAA) to realize a tough, self-healable, nonswellable, conformally tissue-adhesive, hemostatic, and antibacterial hydrogel. The TA within the DN hydrogel forms a dynamic network, enabling rapid self-healing (within 5 min) and offering effective energy dissipation for toughness and viscoelasticity. Furthermore, the hydrophobic moieties of TA provide a water-shielding effect, rendering the hydrogel nonswellable. A simple chemical modification to the hydrogel further strengthens its interfacial adhesion with tissues (shear strength of ≈31 kPa). Interestingly, the TA also can serve as an effective hemostatic (blood-clotting index of 58.40 ± 1.5) and antibacterial component, which are required for a successful wound dressing. The antibacterial effects of the hydrogel are tested against Escherichia coli and Staphylococcus aureus. Finally, the hydrogel is prepared in patch form and applied to a mouse model to test in vivo biocompatibility and hemostatic performances.
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Affiliation(s)
- Jae Park
- School of Electrical and Electronic EngineeringYonsei UniversitySeoul03722Republic of Korea
- LYNK Solutec Inc.Seoul03722Republic of Korea
| | - Tae Young Kim
- School of Electrical and Electronic EngineeringYonsei UniversitySeoul03722Republic of Korea
| | - Yeonju Kim
- School of Electrical and Electronic EngineeringYonsei UniversitySeoul03722Republic of Korea
| | - Soohwan An
- Department of BiotechnologyYonsei University50–1 Yonsei‐ro, Seodaemun‐guSeoul03722Republic of Korea
| | - Kyeong Seok Kim
- Department of ChemistryHanyang UniversitySeoul04763Republic of Korea
| | - Minkyong Kang
- School of Electrical and Electronic EngineeringYonsei UniversitySeoul03722Republic of Korea
| | - Soo A Kim
- School of Electrical and Electronic EngineeringYonsei UniversitySeoul03722Republic of Korea
| | - Jayoung Kim
- Department of Medical EngineeringCollege of MedicineYonsei UniversitySeoul03722Republic of Korea
| | - Joonseok Lee
- Department of ChemistryHanyang UniversitySeoul04763Republic of Korea
| | - Seung‐Woo Cho
- Department of BiotechnologyYonsei University50–1 Yonsei‐ro, Seodaemun‐guSeoul03722Republic of Korea
| | - Jungmok Seo
- School of Electrical and Electronic EngineeringYonsei UniversitySeoul03722Republic of Korea
- LYNK Solutec Inc.Seoul03722Republic of Korea
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Cao Y, Wang L, Zhang X, Lu Y, Wei Y, Liang Z, Hu Y, Huang D. Double-crosslinked PNIPAM-based hydrogel dressings with adjustable adhesion and contractility. Regen Biomater 2023; 10:rbad081. [PMID: 37840848 PMCID: PMC10570987 DOI: 10.1093/rb/rbad081] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/13/2023] [Revised: 08/19/2023] [Accepted: 08/31/2023] [Indexed: 10/17/2023] Open
Abstract
Rapid post-wound closure is necessary to avoid wound infection and promote scar-free healing when skin trauma occurs. In this study, new types of hydrogel dressings with adjustable contractility were fabricated based on N-isopropyl acrylamide/sodium alginate/graphene oxide (P/SA/GO). Then, the chitosan (CS) solution was used as a bridging polymer to achieve tissue adhesion to the hydrogel. The results show that the hydrogel based on poly(N-isopropyl acrylamide) (PNIPAM) not only has the ability to self-shrink but also can adjust the rate of shrinkage through near-infrared thermal stimulation. At the same time, high adhesion strength (7.86 ± 1.22 kPa) between the tissue and the dressing is achieved through the introduction of bridging polymers (CS), and the coating area of the bridging polymer can be adjusted to achieve regional adhesion. The mouse total skin defects experiments have shown that sutures-free wound closure in the early stages of wound healing could be obtained by adjusting the material temperature. Besides, the dressings can promote scar-free wound healing by reducing inflammatory cell infiltration and collagen deposition. These results indicate that double-crosslinked PNIPAM-based hydrogel dressings with adjustable adhesion and contractility proposed in this study provide a candidate material for achieving trackless wound healing.
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Affiliation(s)
- Yu Cao
- Department of Biomedical Engineering, Research Center for Nano-Biomaterials & Regenerative Medicine, College of Biomedical Engineering, Taiyuan University of Technology, Taiyuan 030024, China
| | - Longfei Wang
- Department of Biomedical Engineering, Research Center for Nano-Biomaterials & Regenerative Medicine, College of Biomedical Engineering, Taiyuan University of Technology, Taiyuan 030024, China
- Shanxi-Zheda Institute of Advanced Materials and Chemical Engineering, Taiyuan 030032, China
| | - Xiumei Zhang
- Department of Biomedical Engineering, Research Center for Nano-Biomaterials & Regenerative Medicine, College of Biomedical Engineering, Taiyuan University of Technology, Taiyuan 030024, China
| | - Yi Lu
- Department of Biomedical Engineering, Research Center for Nano-Biomaterials & Regenerative Medicine, College of Biomedical Engineering, Taiyuan University of Technology, Taiyuan 030024, China
| | - Yan Wei
- Department of Biomedical Engineering, Research Center for Nano-Biomaterials & Regenerative Medicine, College of Biomedical Engineering, Taiyuan University of Technology, Taiyuan 030024, China
- Shanxi-Zheda Institute of Advanced Materials and Chemical Engineering, Taiyuan 030032, China
| | - Ziwei Liang
- Department of Biomedical Engineering, Research Center for Nano-Biomaterials & Regenerative Medicine, College of Biomedical Engineering, Taiyuan University of Technology, Taiyuan 030024, China
- Shanxi-Zheda Institute of Advanced Materials and Chemical Engineering, Taiyuan 030032, China
| | - Yinchun Hu
- Department of Biomedical Engineering, Research Center for Nano-Biomaterials & Regenerative Medicine, College of Biomedical Engineering, Taiyuan University of Technology, Taiyuan 030024, China
- Shanxi-Zheda Institute of Advanced Materials and Chemical Engineering, Taiyuan 030032, China
| | - Di Huang
- Department of Biomedical Engineering, Research Center for Nano-Biomaterials & Regenerative Medicine, College of Biomedical Engineering, Taiyuan University of Technology, Taiyuan 030024, China
- Shanxi-Zheda Institute of Advanced Materials and Chemical Engineering, Taiyuan 030032, China
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Lang P, Liu T, Huang S, Zhou Z, Zhang M, Lin Y, He Q, Yao Y, Liu Z, Zhang L. Degradable Temperature-Sensitive Hydrogel Loaded with Heparin Effectively Prevents Post-Operative Tissue Adhesions. ACS Biomater Sci Eng 2023. [PMID: 37179492 DOI: 10.1021/acsbiomaterials.3c00017] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 05/15/2023]
Abstract
Tissue adhesions could occur following surgeries, and severe tissue adhesions can lead to serious complications. Medical hydrogels could be applied at surgical sites as a physical barrier to prevent tissue adhesion. For practical reasons, spreadable, degradable, and self-healable gels are highly demanded. To meet these requirements, we applied carboxymethyl chitosan (CMCS) to poloxamer-based hydrogels to generate low Poloxamer338 (P338) content gels displaying low viscosity at refrigerator temperature and improved mechanical strength at body temperature. Heparin, an effective adhesion inhibitor, was also added to construct P338/CMCS-heparin composite hydrogel (PCHgel). PCHgel presents as a flowable liquid below 20 °C and could rapidly transform into gel when spread on the surface of damaged tissue due to temperature change. The introduction of CMCS enabled hydrogels to form a stable self-healable barrier at injured positions and slowly release heparin during the wound healing period before being degraded after ∼14 days. Ultimately, PCHgel significantly reduced tissue adhesion in model rats and displayed higher efficiency than P338/CMCS gel without heparin. Its adhesion suppression mechanism was verified, and it also displayed good biosafety. Therefore, PCHgel showed good clinical transformation potential with high efficacy, good safety, and ease of use.
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Affiliation(s)
- Puxin Lang
- College of Polymer Science and Engineering, Sichuan University, Chengdu, Sichuan 610000, China
| | - Tiantian Liu
- College of Polymer Science and Engineering, Sichuan University, Chengdu, Sichuan 610000, China
| | - Shiqi Huang
- College of Polymer Science and Engineering, Sichuan University, Chengdu, Sichuan 610000, China
| | - Zhaojie Zhou
- College of Polymer Science and Engineering, Sichuan University, Chengdu, Sichuan 610000, China
| | - Mengxing Zhang
- College of Polymer Science and Engineering, Sichuan University, Chengdu, Sichuan 610000, China
| | - Yunzhu Lin
- West China School of Public Health and West China Fourth Hospital, Sichuan University, Chengdu, Sichuan 610000, China
- West China School of Pharmacy, Sichuan University, Chengdu, Sichuan 610000, P. R. China
| | - Qin He
- Med-X Center for Materials, Sichuan University, Chengdu, Sichuan 610000, China
- West China School of Pharmacy, Sichuan University, Chengdu, Sichuan 610000, P. R. China
| | - Yuqin Yao
- Med-X Center for Materials, Sichuan University, Chengdu, Sichuan 610000, China
| | - Zhenmi Liu
- West China School of Public Health and West China Fourth Hospital, Sichuan University, Chengdu, Sichuan 610000, China
| | - Ling Zhang
- College of Polymer Science and Engineering, Sichuan University, Chengdu, Sichuan 610000, China
- Med-X Center for Materials, Sichuan University, Chengdu, Sichuan 610000, China
- West China School of Public Health and West China Fourth Hospital, Sichuan University, Chengdu, Sichuan 610000, China
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Entirely S-protected thiolated hydroxyethylcellulose: Design of a dual cross-linking approach for hydrogels. Eur J Pharm Biopharm 2022; 181:292-299. [PMID: 36427674 DOI: 10.1016/j.ejpb.2022.11.018] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/21/2022] [Revised: 11/17/2022] [Accepted: 11/18/2022] [Indexed: 11/25/2022]
Abstract
AIM The aim of this study was the synthesis and evaluation of entirely S-protected thiolated hydroxyethylcellulose (HEC) with low and high viscosity, as well as thiolated poly-L-lysine (poly-L-Lys) used as dual-acting ionic as well as thiol-disulfide exchange mediated cross-linking hydrogel. METHODS Bis(mercaptosuccinic acid) was covalently attached to low and high viscous HECs via Fisher esterification, obtaining S-protected polymers. Poly-L-Lys-cysteine was synthesized via amidation of poly-L-Lys-HBr with cysteine (Cys). Thiolated polymers were examined in terms of cytotoxicity and rheological behavior of hydrogels containing these thiomers was evaluated with a cone-plate rheometer. RESULTS Thiomers showed less cytotoxicity compared to the corresponding unmodified polymers. Rheological studies showed that cross-linking occurred between the two polymers via thiol-disulfide exchange reactions facilitated by the complementary charges. Employing poly-L-Lys-Cys in a concentration of either 0.5 or 5% (m/v) resulted in a 34.5-fold or 17.3-fold as well as a 53.6-fold or 29.6-fold improvement in dynamic viscosity within 5 min at 37 °C on S-protected thiolated low and high viscous HEC, compared to the corresponding unmodified HECs, respectively. CONCLUSION By the combination of anionic S-protected thiolated polymers with a cationic thiolated polymer, dual-acting hydrogels exhibiting a time dependent increase in viscosity can be designed.
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