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Xu Y, Bei Z, Li M, Ye L, Chu B, Zhao Y, Qian Z. Biomedical application of materials for external auditory canal: History, challenges, and clinical prospects. Bioact Mater 2024; 39:317-335. [PMID: 38827173 PMCID: PMC11139775 DOI: 10.1016/j.bioactmat.2024.05.035] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/13/2023] [Revised: 05/14/2024] [Accepted: 05/19/2024] [Indexed: 06/04/2024] Open
Abstract
Biomaterials play an integral role in treatment of external auditory canal (EAC) diseases. Regarding the special anatomic structure and physiological characteristics of EAC, careful selection of applicable biomaterials was essential step towards effective management of EAC conditions. The bioactive materials can provide reasonable biocompatibility, reduce risk of host pro-inflammatory response and immune rejection, and promote the healing process. In therapeutic procedure, biomaterials were employed for covering or packing the wound, protection of the damaged tissue, and maintaining of normal structures and functions of the EAC. Therefore, understanding and application of biomaterials was key to obtaining great rehabilitation in therapy of EAC diseases. In clinical practice, biomaterials were recognized as an important part in the treatment of different EAC diseases. The choice of biomaterials was distinct according to the requirements of various diseases. As a result, awareness of property regarding different biomaterials was fundamental for appropriate selection of therapeutic substances in different EAC diseases. In this review, we firstly introduced the characteristics of EAC structures and physiology, and EAC pathologies were summarized secondarily. From the viewpoint of biomaterials, the different materials applied to individual diseases were outlined in categories. Besides, the underlying future of therapeutic EAC biomaterials was discussed.
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Affiliation(s)
- Yang Xu
- Department of Otorhinolaryngology-Head & Neck Surgery, West China Hospital, Sichuan University, Chengdu, Sichuan, China
- Department of Biotherapy, Cancer Center and State Key Laboratory of Biotherapy, West China Hospital, Sichuan University, Chengdu, Sichuan, China
| | - Zhongwu Bei
- Department of Biotherapy, Cancer Center and State Key Laboratory of Biotherapy, West China Hospital, Sichuan University, Chengdu, Sichuan, China
| | - Mei Li
- Department of Otorhinolaryngology-Head & Neck Surgery, West China Hospital, Sichuan University, Chengdu, Sichuan, China
| | - Lin Ye
- Department of Biotherapy, Cancer Center and State Key Laboratory of Biotherapy, West China Hospital, Sichuan University, Chengdu, Sichuan, China
- Department of Ophthalmology, West China Hospital, Sichuan University, Chengdu, Sichuan, China
| | - Bingyang Chu
- Department of Biotherapy, Cancer Center and State Key Laboratory of Biotherapy, West China Hospital, Sichuan University, Chengdu, Sichuan, China
| | - Yu Zhao
- Department of Otorhinolaryngology-Head & Neck Surgery, West China Hospital, Sichuan University, Chengdu, Sichuan, China
| | - Zhiyong Qian
- Department of Biotherapy, Cancer Center and State Key Laboratory of Biotherapy, West China Hospital, Sichuan University, Chengdu, Sichuan, China
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2
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Condò I, Giannitelli SM, Lo Presti D, Cortese B, Ursini O. Overview of Dynamic Bond Based Hydrogels for Reversible Adhesion Processes. Gels 2024; 10:442. [PMID: 39057465 PMCID: PMC11275299 DOI: 10.3390/gels10070442] [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: 06/06/2024] [Revised: 06/27/2024] [Accepted: 07/02/2024] [Indexed: 07/28/2024] Open
Abstract
Polymeric hydrogels are soft materials with a three-dimensional (3D) hydrophilic network capable of retaining and absorbing large amounts of water or biological fluids. Due to their customizable properties, these materials are extensively studied for developing matrices for 3D cell culture scaffolds, drug delivery systems, and tissue engineering. However, conventional hydrogels still exhibit many drawbacks; thus, significant efforts have been directed towards developing dynamic hydrogels that draw inspiration from organisms' natural self-repair abilities after injury. The self-healing properties of these hydrogels are closely associated with their ability to form, break, and heal dynamic bonds in response to various stimuli. The primary objective of this review is to provide a comprehensive overview of dynamic hydrogels by examining the types of chemical bonds associated with them and the biopolymers utilized, and to elucidate the chemical nature of dynamic bonds that enable the modulation of hydrogels' properties. While dynamic bonds ensure the self-healing behavior of hydrogels, they do not inherently confer adhesive properties. Therefore, we also highlight emerging approaches that enable dynamic hydrogels to acquire adhesive properties.
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Affiliation(s)
- Ilaria Condò
- Department of Engineering, Università Campus Bio-Medico di Roma, Via Álvaro del Portillo 21, 00128 Rome, Italy; (I.C.); (D.L.P.)
| | - Sara Maria Giannitelli
- Department of Science and Technology for Sustainable Development and One Health, Università Campus Bio-Medico di Roma, Via Álvaro del Portillo 21, 00128 Rome, Italy;
| | - Daniela Lo Presti
- Department of Engineering, Università Campus Bio-Medico di Roma, Via Álvaro del Portillo 21, 00128 Rome, Italy; (I.C.); (D.L.P.)
- Fondazione Policlinico Universitario Campus Bio-Medico, Via Álvaro del Portillo 200, 00128 Rome, Italy
| | - Barbara Cortese
- National Research Council—Institute of Nanotechnology (CNR-Nanotec), Università La Sapienza, c/o Edificio Fermi, Pz.le Aldo Moro 5, 00185 Rome, Italy;
| | - Ornella Ursini
- National Research Council—Institute of Nanotechnology (CNR-Nanotec), Università La Sapienza, c/o Edificio Fermi, Pz.le Aldo Moro 5, 00185 Rome, Italy;
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Liu Q, Wang C, Cheng M, Hu L, Zhang Z, Sun Q, Wang S, Fan Y, Pan P, Chen J. Self-Healing Conductive Hydrogels with Dynamic Dual Network Structure Accelerate Infected Wound Healing via Photothermal Antimicrobial and Regulating Inflammatory Response. ACS APPLIED MATERIALS & INTERFACES 2024; 16:30776-30792. [PMID: 38848491 DOI: 10.1021/acsami.4c04113] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/09/2024]
Abstract
Wound infections are an escalating clinical challenge with continuous inflammatory response and the threat of drug-resistant bacteria. Herein, a series of self-healing conductive hydrogels were designed based on carboxymethyl chitosan/oxidized sodium alginate/polymerized gallic acid/Fe3+ (CMC/OSA/pGA/Fe3+, COGFe) for promoting infected wound healing. The Schiff base and catechol-Fe3+ chelation in the dynamical dual network structure of the hydrogels endowed dressings with good toughness, conductivity, adhesion, and self-healing properties, thus flexibly adapting to the deformation of skin wounds. In terms of ultraviolet (UV) resistance and scavenging of reactive oxygen species (ROS), the hydrogels significantly reduced oxidative stress at the wound site. Additionally, the hydrogels with photothermal therapy (PTT) achieved a 95% bactericidal rate in 5 min of near-infrared (NIR) light radiation by disrupting the bacterial cell membrane structure through elevated temperature. Meanwhile, the inherent antimicrobial properties of GA could reduce healthy tissue damage caused by excessive heat. The composite hydrogels could effectively promote the proliferation and migration of fibroblasts and possess good biocompatibility and hemostatic effect. In full-thickness infected wound repair experiments in rats, the COGFe5 hydrogel combined with NIR effectively killed bacteria, modulated macrophage polarization (M1 to M2 phenotype) to improve the immune microenvironment of the wound, and shortened the repair time by accelerating the expression of collagen deposition (TGF-β) and vascular factors (CD31). This combined therapy might provide a prospective strategy for infectious wound treatment.
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Affiliation(s)
- Qing Liu
- Marine College, Shandong University, Weihai 264209, China
| | - Chunxiao Wang
- Marine College, Shandong University, Weihai 264209, China
| | - Meiqi Cheng
- Marine College, Shandong University, Weihai 264209, China
| | - Le Hu
- Marine College, Shandong University, Weihai 264209, China
| | - Ziyue Zhang
- Marine College, Shandong University, Weihai 264209, China
| | - Qisen Sun
- Marine College, Shandong University, Weihai 264209, China
| | - Shaoshen Wang
- Marine College, Shandong University, Weihai 264209, China
| | - Yinuo Fan
- Marine College, Shandong University, Weihai 264209, China
| | - Panpan Pan
- Marine College, Shandong University, Weihai 264209, China
| | - Jingdi Chen
- Marine College, Shandong University, Weihai 264209, China
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4
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Huang L, Jiang Y, Zhang P, Li M, Liu B, Tang K. Injectable Modified Sodium Alginate Microspheres for Enhanced Operative Efficiency and Safety in Endoscopic Submucosal Dissection. Biomacromolecules 2024; 25:2953-2964. [PMID: 38652682 DOI: 10.1021/acs.biomac.4c00081] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 04/25/2024]
Abstract
Endoscopic submucosal dissection (ESD) is an effective method for resecting early-stage tumors in the digestive system. To achieve a low injection pressure of the injected fluid and continuous elevation of the mucosa following injection during the ESD technique, we introduced an innovative injectable sodium-alginate-based drug-loaded microsphere (Cipro-ThSA) for ESD surgery, which was generated through an emulsion reaction involving cysteine-modified sodium alginate (ThSA) and ciprofloxacin. Cipro-ThSA microspheres exhibited notable adhesiveness, antioxidant activity, and antimicrobial properties, providing a certain level of postoperative wound protection. In vitro cell assays confirmed the decent biocompatibility of the material. Lastly, according to animal experiments involving submucosal elevation of porcine colons, Cipro-ThSA microspheres ensure surgically removable lift height while maintaining the mucosa for approximately 246% longer than saline, which could effectively reduce surgical risks while providing sufficient time for operation. Consequently, the Cipro-ThSA microsphere holds great promise as a novel submucosal injection material, in terms of enhancing the operational safety and effectiveness of ESD surgery.
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Affiliation(s)
- Luzhan Huang
- School of Materials Science and Engineering, Zhengzhou University, Zhengzhou 450001, China
| | - Yongchao Jiang
- School of Materials Science and Engineering, Zhengzhou University, Zhengzhou 450001, China
| | - Pengcheng Zhang
- School of Materials Science and Engineering, Zhengzhou University, Zhengzhou 450001, China
| | - Muhan Li
- The First Affiliated Hospital of Zhengzhou University, Zhengzhou 450052, China
| | - Bingrong Liu
- The First Affiliated Hospital of Zhengzhou University, Zhengzhou 450052, China
| | - Keyong Tang
- School of Materials Science and Engineering, Zhengzhou University, Zhengzhou 450001, China
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Zhou S, Zhang X, Ni W, He Y, Li M, Wang C, Bai Y, Zhang H, Yao M. An Immune-Regulating Polysaccharide Hybrid Hydrogel with Mild Photothermal Effect and Anti-Inflammatory for Accelerating Infected Wound Healing. Adv Healthc Mater 2024:e2400003. [PMID: 38711313 DOI: 10.1002/adhm.202400003] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/01/2024] [Revised: 04/24/2024] [Indexed: 05/08/2024]
Abstract
Bacterial infections and excessive inflammation present substantial challenges for clinical wound healing. Hydrogels with mild photothermal (PTT) effects have emerged as promising agents owing to their dual actions: positive effects on cells and negative effects on bacteria. Here, an injectable self-healing hydrogel of oxidized konjac glucomannan/arginine-modified chitosan (OKGM/CS-Arg, OC) integrated with protocatechualdehyde-@Fe (PF) nanoparticles capable of effectively absorbing near-infrared radiation is synthesized successfully. The OC/PF hydrogels exhibit excellent mechanical properties, biocompatibility, and antioxidant activity. Moreover, in synergy with PTT, OC/PF demonstrates potent antibacterial effects while concurrently stimulating cell migration and new blood vessel formation. In methicillin-resistant Staphylococcus aureus-infected full-thickness mouse wounds, the OC/PF hydrogel displays remarkable antibacterial and anti-inflammatory activities, and accelerates wound healing by regulating the wound immune microenvironment and promoting M2 macrophage polarization. Consequently, the OC/PF hydrogel represents a novel therapeutic approach for treating multidrug-resistant bacterial infections and offers a technologically advanced solution for managing infectious wounds in clinical settings.
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Affiliation(s)
- ShengZhe Zhou
- Department of Plastic and Reconstructive Surgery, Shanghai Ninth People's Hospital, Shanghai Jiao Tong University School of Medicine, Shanghai, 200011, P. R. China
| | - Xueliang Zhang
- School of Chemistry and Chemical Engineering, Shanghai Jiao Tong University, Shanghai, 200240, P. R. China
| | - Wei Ni
- Department of Plastic and Reconstructive Surgery, Shanghai Ninth People's Hospital, Shanghai Jiao Tong University School of Medicine, Shanghai, 200011, P. R. China
- Wuhan National Laboratory for Optoelectronics, Huazhong University of Science and Technology, 1037 Luoyu Road, Wuhan, 430000, P. R. China
| | - Yu He
- Department of Plastic and Reconstructive Surgery, Shanghai Ninth People's Hospital, Shanghai Jiao Tong University School of Medicine, Shanghai, 200011, P. R. China
| | - Ming Li
- Department of Plastic and Reconstructive Surgery, Shanghai Ninth People's Hospital, Shanghai Jiao Tong University School of Medicine, Shanghai, 200011, P. R. China
| | - Caixia Wang
- Department of Plastic and Reconstructive Surgery, Shanghai Ninth People's Hospital, Shanghai Jiao Tong University School of Medicine, Shanghai, 200011, P. R. China
| | - Yubing Bai
- Department of Plastic and Reconstructive Surgery, Shanghai Ninth People's Hospital, Shanghai Jiao Tong University School of Medicine, Shanghai, 200011, P. R. China
| | - Hao Zhang
- Department of Plastic and Reconstructive Surgery, Shanghai Ninth People's Hospital, Shanghai Jiao Tong University School of Medicine, Shanghai, 200011, P. R. China
| | - Min Yao
- Department of Plastic and Reconstructive Surgery, Shanghai Ninth People's Hospital, Shanghai Jiao Tong University School of Medicine, Shanghai, 200011, P. R. China
- Institute of Traumatic Medicine, Shanghai Jiao Tong University School of Medicine, Shanghai, 201999, P. R. China
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6
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Deng J, Gao S, Liu M, Xie W, Pan GY. Antioxidant and antibacterial hydrogel formed by protocatechualdehyde-ferric iron complex and aminopolysaccharide for infected wound healing. Int J Biol Macromol 2024; 268:131642. [PMID: 38641283 DOI: 10.1016/j.ijbiomac.2024.131642] [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: 09/28/2023] [Revised: 04/13/2024] [Accepted: 04/14/2024] [Indexed: 04/21/2024]
Abstract
To better treat bacteria-infected wounds and promote healing, new wound dressings must be developed. In this study, we obtained PA@Fe by chelating iron trivalent ions (Fe3+) with protocatechualdehyde (PA), which has a catechol structure. Subsequently, we reacted it with ethylene glycol chitosan (GC) via a Schiff base reaction and loaded vancomycin to obtain an antibacterial Gel@Van hydrogel with a photothermal response. The as-prepared Gel@Van hydrogel exhibited good injectability, self-healing, hemostasis, photothermal stability, biocompatibility, and antioxidant and antibacterial properties. Moreover, Gel@Van hydrogel achieved highly synergistic antibacterial efficacy through photothermal and antibiotic sterilization. In a mouse skin-damaged infection model, Gel@Van hydrogel had a strong ability to promote the healing of methicillin-resistant Staphylococcus aureus (MRSA)-infected wounds, indicating the great potential application value of Gel@Van hydrogel in the field of treating and promoting the healing of infected wounds.
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Affiliation(s)
- Jianbin Deng
- School of Pharmacy, Guilin Medical University, Guilin 541100, PR China
| | - Shiqi Gao
- School of Pharmacy, Guilin Medical University, Guilin 541100, PR China
| | - Mengqi Liu
- School of Pharmacy, Guilin Medical University, Guilin 541100, PR China
| | - Weiquan Xie
- School of Pharmacy, Guilin Medical University, Guilin 541100, PR China.
| | - Guang-Yu Pan
- School of Pharmacy, Guilin Medical University, Guilin 541100, PR China; School of Intelligent Medicine and Biotechnology, Guilin Medical University, Guilin 541100, PR China; Key Laboratory of Biochemistry and Molecular Biology (Guilin Medical University), Education Department of Guangxi Zhuang Autonomous Region, Guilin 541100, PR China.
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7
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Yang AL, Sun SB, Qu LY, Li XY, Liu JL, Zhou F, Xu YJ. Polysaccharide hydrogel containing silver nanoparticle@catechol microspheres with photothermal, antibacterial and anti-inflammatory activities for infected-wounds repair. Int J Biol Macromol 2024; 265:130898. [PMID: 38508556 DOI: 10.1016/j.ijbiomac.2024.130898] [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: 12/18/2023] [Revised: 03/04/2024] [Accepted: 03/12/2024] [Indexed: 03/22/2024]
Abstract
Anti-infection hydrogels have recently aroused enormous attraction, particularly in the treatment of chronic wounds. Herein, silver nanoparticle@catechol formaldehyde resin microspheres (Ag@CFRs) were fabricated by one-step hydrothermal method and subsequently encapsulated in hydrogels which were developed by Schiff base reaction between aldehyde groups in oxidized hyaluronic acid and amino groups in carboxymethyl chitosan. The developed polysaccharide hydrogel exhibited microporous structure, high swelling capacity, favorable mechanical strength, enhanced tissue adhesion and photothermal activities. Additionally, the hydrogel not only ensured long-term and high-efficiency antibacterial performance (99.9 %) toward E. coli and S. aureus, but also realized superior cytocompatibility in vitro. Moreover, based on the triple antibacterial strategies endowed by chitosan, silver nanoparticles and the photothermal properties of catechol microspheres, the composite hydrogel exhibited excellent anti-infection function, significantly downregulated inflammatory factors (TNF-α and IL-1β) and promoted in vivo infected-wound healing. These results demonstrated that the polysaccharide hydrogel containing Ag@CFRs has great potential for infected-wounds repair.
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Affiliation(s)
- An-Le Yang
- Institute of Functional Textiles and Advanced Materials, College of Textiles & Clothing, State Key Laboratory of Bio-fibers and Eco-textiles, Qingdao University, Qingdao 266071, China
| | - Shi-Bin Sun
- Institute of Functional Textiles and Advanced Materials, College of Textiles & Clothing, State Key Laboratory of Bio-fibers and Eco-textiles, Qingdao University, Qingdao 266071, China
| | - Lian-Yi Qu
- Institute of Functional Textiles and Advanced Materials, College of Textiles & Clothing, State Key Laboratory of Bio-fibers and Eco-textiles, Qingdao University, Qingdao 266071, China
| | - Xue-Yan Li
- Institute of Functional Textiles and Advanced Materials, College of Textiles & Clothing, State Key Laboratory of Bio-fibers and Eco-textiles, Qingdao University, Qingdao 266071, China
| | - Jiang-Long Liu
- Institute of Functional Textiles and Advanced Materials, College of Textiles & Clothing, State Key Laboratory of Bio-fibers and Eco-textiles, Qingdao University, Qingdao 266071, China
| | - Fang Zhou
- Institute of Functional Textiles and Advanced Materials, College of Textiles & Clothing, State Key Laboratory of Bio-fibers and Eco-textiles, Qingdao University, Qingdao 266071, China.
| | - Ying-Jun Xu
- Institute of Functional Textiles and Advanced Materials, College of Textiles & Clothing, State Key Laboratory of Bio-fibers and Eco-textiles, Qingdao University, Qingdao 266071, China.
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Lai S, Wu T, Shi C, Wang X, Liu P, Wang L, Yu H. Triple-layered core-shell fiber dressings with enduring platelet conservation and sustained growth factor release abilities for chronic wound healing. Regen Biomater 2024; 11:rbae034. [PMID: 38601330 PMCID: PMC11004556 DOI: 10.1093/rb/rbae034] [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: 01/03/2024] [Revised: 03/08/2024] [Accepted: 03/12/2024] [Indexed: 04/12/2024] Open
Abstract
Platelet-rich plasma (PRP) is one of the most popular biomaterials in regenerative medicine. However, the difficulties encountered in its preservation, and the requirement for on-demand preparation severely limit its application. In addition, its rapid degradation in the wound microenvironment makes the sustained release of growth factors impossible and finally reduces the therapeutic effect on chronic wounds. Here, a multifunctional dressing based on triple-layered core-shell fibers for loading and enduring preservation of PRP was developed using a one-step coaxial bioprinting technique combined with freeze-drying. The platelets were effectively dispersed and immobilized in the core layer of the fiber, leading to a sustained release of growth factors from the PRP. The rate of release can be controlled by adjusting the triple-layered core-shell structure. Simultaneously, the triple-layered core-shell structure can reduce the deactivation of PRP during freezing and storage. The experimental findings suggest that PRP exhibits sustained activity, facilitating the process of wound healing even after a storage period of 180 days. Furthermore, the protective mechanism of PRP by the triple-layered core-shell fiber was investigated, and the conditions for freeze-drying and storage were optimized, further enhancing the long-term storability of PRP. As a result, the multifunctional core-shell fiber dressings developed in this study offer a novel approach for sustained growth factor release and the enduring preservation of active PRP.
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Affiliation(s)
- Simin Lai
- Guangdong–Hong Kong Joint Laboratory for New Textile Materials, School of Textile Science and Engineering, Wuyi University, Jiangmen 529020, China
| | - Tingbin Wu
- Guangdong–Hong Kong Joint Laboratory for New Textile Materials, School of Textile Science and Engineering, Wuyi University, Jiangmen 529020, China
| | - Chenxi Shi
- Guangdong–Hong Kong Joint Laboratory for New Textile Materials, School of Textile Science and Engineering, Wuyi University, Jiangmen 529020, China
| | | | - Pengbi Liu
- Guangdong–Hong Kong Joint Laboratory for New Textile Materials, School of Textile Science and Engineering, Wuyi University, Jiangmen 529020, China
| | - Lihuan Wang
- Guangdong–Hong Kong Joint Laboratory for New Textile Materials, School of Textile Science and Engineering, Wuyi University, Jiangmen 529020, China
| | - Hui Yu
- Guangdong–Hong Kong Joint Laboratory for New Textile Materials, School of Textile Science and Engineering, Wuyi University, Jiangmen 529020, China
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Jiang Y, Zhang W, Guo Y, Zheng X, Tang K. Bioinspired adhesive hydrogel based on serotonin-modified gelatin and oxidized hyaluronic acid for rapid hemostasis and wound healing. Int J Biol Macromol 2024; 261:129739. [PMID: 38281529 DOI: 10.1016/j.ijbiomac.2024.129739] [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: 09/02/2023] [Revised: 01/12/2024] [Accepted: 01/23/2024] [Indexed: 01/30/2024]
Abstract
A hybrid hydrogel system (GSOHA) consisting of serotonin-grafted gelatin and oxidized hyaluronic acid (OHA) was developed in this study to efficiently control bleeding and prevent bacterial infections during surgery and trauma. The study results showed that the incorporation of serotonin successfully produced hydrogels with rapid hemostatic, antibacterial, and antioxidant properties. The GSOHA hydrogel exhibited considerably stronger tissue adhesion (15.55 ± 0.36 kPa) to porcine skin than the commercial fibrin glue (1.09 ± 0.04 kPa). In addition, the hydrogel could rapidly absorb blood cells and stimulate cell conjugation with serotonin addition. In vitro experiments using endothelial cells and erythrocytes demonstrated the excellent biocompatibility and hemocompatibility of the hydrogel. Most importantly, the GSOHA hydrogel accelerated the wound healing process in a full-thickness skin defect mice model, and the histological staining results demonstrated that GSOHA significantly promoted collagen deposition and vascularization. In conclusion, this study demonstrated the significant potential of the GSOHA hydrogel as an adhesive dressing for rapid hemostasis and wound healing.
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Affiliation(s)
- Yongchao Jiang
- School of Materials Science and Engineering, Zhengzhou University, Zhengzhou, 450001, China.
| | - Wenjie Zhang
- School of Materials Science and Engineering, Zhengzhou University, Zhengzhou, 450001, China
| | - Yingying Guo
- School of Materials Science and Engineering, Zhengzhou University, Zhengzhou, 450001, China
| | - Xuejing Zheng
- School of Materials Science and Engineering, Zhengzhou University, Zhengzhou, 450001, China
| | - Keyong Tang
- School of Materials Science and Engineering, Zhengzhou University, Zhengzhou, 450001, China.
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Du Y, Bai Y, Lang S, Xing D, Ma L, Li K, Peng J, Li X, Liu G. Gelatin Sponges with a Uniform Interoperable Pore Structure and Biodegradability for Liver Injury Hemostasis and Tissue Regeneration. Biomacromolecules 2023; 24:5313-5327. [PMID: 37725632 DOI: 10.1021/acs.biomac.3c00803] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 09/21/2023]
Abstract
Developing a hemostatic sponge that can effectively control bleeding from visceral injuries while guiding in situ tissue regeneration in incompressible wounds remains a challenge. Most of the existing hemostatic sponges degrade slowly, are relatively single-functioning, and cannot cope with complex environments. Herein, a biodegradable rapidly hemostatic sponge (GPZ) was created by dual-dynamic-bond cross-linking among Zn2+, protocatechualdehyde (PA)-containing catechol and aldehyde groups, and gelatin. GPZ had a uniformly distributed interconnected pore structure with excellent fluid absorption. It could effectively absorb the oozing blood and increase the blood concentration while stimulating platelet activation and accelerating blood coagulation. Compared to commercial hemostats, GPZ treatment significantly accelerated hemostasis in the rat liver defect model (∼0.33 min, ≥50% reduction in the hemostatic time) and in the rabbit liver defect model (∼1.02 min, ≥60% reduction in the hemostatic time). Additionally, GPZ had excellent antibacterial and antioxidant properties that effectively protected the wound from infection and excessive inflammation. In the liver regeneration model, GPZ significantly increased the rate of hepatic tissue repair and promoted rapid functional recovery without complications and adverse reactions. Overall, we designed a simple and effective biodegradable rapid hemostatic sponge with good clinical translational potential for treating lethal incompressible bleeding and promoting wound healing.
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Affiliation(s)
- Yangrui Du
- College of Biomass Science and Engineering, Sichuan University, Chengdu 610065, China
| | - Yangjing Bai
- West China School of Nursing, Sichuan University/Department of Cardiovascular Surgery, West China Hospital, Sichuan University, Chengdu 610041, China
| | - Shiying Lang
- College of Biomass Science and Engineering, Sichuan University, Chengdu 610065, China
| | - Dandan Xing
- College of Biomass Science and Engineering, Sichuan University, Chengdu 610065, China
| | - Li Ma
- College of Biomass Science and Engineering, Sichuan University, Chengdu 610065, China
| | - Kaijun Li
- College of Biomass Science and Engineering, Sichuan University, Chengdu 610065, China
| | - Jinyu Peng
- College of Biomass Science and Engineering, Sichuan University, Chengdu 610065, China
| | - Xinyun Li
- Dazhou Hospital of Integrated Traditional Chinese and Western Medicine, Dazhou, Sichuan 635000, China
| | - Gongyan Liu
- College of Biomass Science and Engineering, Sichuan University, Chengdu 610065, China
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