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He H, Huang W, Zhang S, Li J, Zhang J, Li B, Xu J, Luo Y, Shi H, Li Y, Xiao J, Ezekiel OC, Li X, Wu J. Microneedle Patch for Transdermal Sequential Delivery of KGF-2 and aFGF to Enhance Burn Wound Therapy. SMALL (WEINHEIM AN DER BERGSTRASSE, GERMANY) 2024:e2307485. [PMID: 38623988 DOI: 10.1002/smll.202307485] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 08/28/2023] [Revised: 12/19/2023] [Indexed: 04/17/2024]
Abstract
Severe burn wounds usually destroy key cells' functions of the skin resulting in delayed re-epithelization and wound regeneration. Promoting key cells' activities is crucial for burn wound repair. It is well known that keratinocyte growth factor-2 (KGF-2) participates in the proliferation and morphogenesis of epithelial cells while acidic fibroblast growth factor (aFGF) is a key mediator for fibroblast and endothelial cell growth and differentiation. However, thick eschar and the harsh environment of a burn wound often decrease the delivery efficiency of fibroblast growth factor (FGF) to the wound site. Therefore, herein a novel microneedle patch for sequential transdermal delivery of KGF-2 and aFGF is fabricated to enhance burn wound therapy. aFGF is first loaded in the nanoparticle (NPaFGF) and then encapsulated NPaFGF with KGF-2 in the microneedle patch (KGF-2/NPaFGF@MN). The result shows that KGF-2/NPaFGF@MN can successfully get across the eschar and sequentially release KGF-2 and aFGF. Additional data demonstrated that KGF-2/NPaFGF@MN achieved a quicker wound closure rate with reduced necrotic tissues, faster re-epithelialization, enhanced collagen deposition, and increased neo-vascularization. Further evidence suggests that improved wound healing is regulated by significantly elevated expressions of hypoxia-inducible factor-1 alpha (HIF-1ɑ) and heat shock protein 90 (Hsp90) in burn wounds. All these data proved that KGF-2/NPaFGF@MN is an effective treatment for wound healing of burns.
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Affiliation(s)
- Huacheng He
- School of Pharmaceutical Science, Wenzhou Medical University, Wenzhou, Zhejiang, 325035, P. R. China
- Oujiang Laboratory (Zhejiang Lab for Regenerative Medicine, Vision and Brain Health), Wenzhou, Zhejiang, 325000, P. R. China
| | - Wen Huang
- School of Pharmaceutical Science, Wenzhou Medical University, Wenzhou, Zhejiang, 325035, P. R. China
| | - Shihui Zhang
- School of Pharmaceutical Science, Wenzhou Medical University, Wenzhou, Zhejiang, 325035, P. R. China
| | - Jie Li
- School of Pharmaceutical Science, Wenzhou Medical University, Wenzhou, Zhejiang, 325035, P. R. China
| | - Jian Zhang
- School of Pharmaceutical Science, Wenzhou Medical University, Wenzhou, Zhejiang, 325035, P. R. China
| | - Bingxin Li
- School of Pharmaceutical Science, Wenzhou Medical University, Wenzhou, Zhejiang, 325035, P. R. China
| | - Jie Xu
- School of Pharmaceutical Science, Wenzhou Medical University, Wenzhou, Zhejiang, 325035, P. R. China
| | - Yuting Luo
- School of Pharmaceutical Science, Wenzhou Medical University, Wenzhou, Zhejiang, 325035, P. R. China
| | - Huiling Shi
- School of Pharmaceutical Science, Wenzhou Medical University, Wenzhou, Zhejiang, 325035, P. R. China
| | - Yue Li
- School of Pharmaceutical Science, Wenzhou Medical University, Wenzhou, Zhejiang, 325035, P. R. China
| | - Jian Xiao
- School of Pharmaceutical Science, Wenzhou Medical University, Wenzhou, Zhejiang, 325035, P. R. China
| | - Odinaka Cassandra Ezekiel
- School of Pharmaceutical Science, Wenzhou Medical University, Wenzhou, Zhejiang, 325035, P. R. China
| | - Xiaokun Li
- School of Pharmaceutical Science, Wenzhou Medical University, Wenzhou, Zhejiang, 325035, P. R. China
| | - Jiang Wu
- School of Pharmaceutical Science, Wenzhou Medical University, Wenzhou, Zhejiang, 325035, P. R. China
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Chen Y, Hu M, Hu H, Ji S, Huang L, Wei W, Zhao K, Teng C. Fabrication of an Adhesive Small Intestinal Submucosa Acellular Matrix Hydrogel for Accelerating Diabetic Wound Healing. ACS OMEGA 2023; 8:46653-46662. [PMID: 38107900 PMCID: PMC10720003 DOI: 10.1021/acsomega.3c05682] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 08/03/2023] [Revised: 11/10/2023] [Accepted: 11/14/2023] [Indexed: 12/19/2023]
Abstract
The treatment of diabetic skin defects comes with enormous challenges in the clinic due to the disordered metabolic microenvironment. In this study, we therefore designed a novel composite hydrogel (SISAM@HN) with bioactive factors and tissue adhesive properties for accelerating chronic diabetic wound healing. Hyaluronic acid (HA) modified by N-(2-aminoethyl)-4-(4-(hydroxymethyl)-2-methoxy-5-nitrosophenoxy) butanamide (NB) held the phototriggering tissue adhesive capacity. Decellularized small intestinal submucosa (SIS) was degreased and digested to form the acellular matrix, which facilitated bioactive factor release. The results of the burst pressure test demonstrated that the in situ formed hydrogel possessed a tissue adhesive property. In vitro experiments, based on bone marrow stromal cells, revealed that the SIS acellular matrix-containing hydrogel contributed to promoting cell proliferation. In vivo, a diabetic mouse model was created and used to evaluate the tissue regeneration function of the obtained hydrogel, and our results showed that the synthesized hydrogel could assist collagen deposition, attenuate inflammation, and foster vascular growth during the wound healing process. Overall, the SIS acellular matrix-containing HA hydrogel was able to adhere to the wound sites, promote cell proliferation, and facilitate angiogenesis, which would be a promising biomaterial for wound dressing in clinical therapy of diabetic skin defects.
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Affiliation(s)
- Yao Chen
- Department
of Orthopaedic Surgery, the Fourth Affiliated Hospital, International
Institutes of Medicine, Zhejiang University
School of Medicine, Yiwu, Zhejiang 322000, China
| | - Miner Hu
- Department
of Cardiology, the Fourth Affiliated Hospital, International Institutes
of Medicine, Zhejiang University School
of Medicine, Yiwu, Zhejiang 322000, China
| | - Honghua Hu
- Department
of Orthopaedic Surgery, the Fourth Affiliated Hospital, International
Institutes of Medicine, Zhejiang University
School of Medicine, Yiwu, Zhejiang 322000, China
| | - Shunxian Ji
- Department
of Orthopaedic Surgery, the Fourth Affiliated Hospital, International
Institutes of Medicine, Zhejiang University
School of Medicine, Yiwu, Zhejiang 322000, China
| | - Leyi Huang
- Department
of Orthopaedic Surgery, the Fourth Affiliated Hospital, International
Institutes of Medicine, Zhejiang University
School of Medicine, Yiwu, Zhejiang 322000, China
| | - Wei Wei
- Department
of Orthopaedic Surgery, the Fourth Affiliated Hospital, International
Institutes of Medicine, Zhejiang University
School of Medicine, Yiwu, Zhejiang 322000, China
- Key
Laboratory of Tissue Engineering and Regenerative Medicine of Zhejiang
Province, Zhejiang University School of
Medicine, Hangzhou, Zhejiang 310000, China
| | - Kun Zhao
- Department
of Endocrinology, the Seventh Medical Center of Chinese PLA General
Hospital, Beijing 100700, China
| | - Chong Teng
- Department
of Orthopaedic Surgery, the Fourth Affiliated Hospital, International
Institutes of Medicine, Zhejiang University
School of Medicine, Yiwu, Zhejiang 322000, China
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3
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Pan Y, Yang D, Zhou M, Liu Y, Pan J, Wu Y, Huang L, Li H. Advance in topical biomaterials and mechanisms for the intervention of pressure injury. iScience 2023; 26:106956. [PMID: 37378311 PMCID: PMC10291478 DOI: 10.1016/j.isci.2023.106956] [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] [Indexed: 06/29/2023] Open
Abstract
Pressure injuries (PIs) are localized tissue damage resulting from prolonged compression or shear forces on the skin or underlying tissue, or both. Different stages of PIs share common features include intense oxidative stress, abnormal inflammatory response, cell death, and subdued tissue remodeling. Despite various clinical interventions, stage 1 or stage 2 PIs are hard to monitor for the changes of skin or identify from other disease, whereas stage 3 or stage 4 PIs are challenging to heal, painful, expensive to manage, and have a negative impact on quality of life. Here, we review the underlying pathogenesis and the current advances of biochemicals in PIs. We first discuss the crucial events involved in the pathogenesis of PIs and key biochemical pathways lead to wound delay. Then, we examine the recent progress of biomaterials-assisted wound prevention and healing and their prospects.
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Affiliation(s)
- Yingying Pan
- School of Nursing, Wenzhou Medical University, Wenzhou, Zhejiang 325035, China
| | - Dejun Yang
- Engineering Research Center of Clinical Functional Materials and Diagnosis & Treatment Devices of Zhejiang Province, Wenzhou Institute, University of Chinese Academy of Sciences, Wenzhou, Zhejiang 325011, China
| | - Min Zhou
- School of Nursing, Wenzhou Medical University, Wenzhou, Zhejiang 325035, China
| | - Yong Liu
- Engineering Research Center of Clinical Functional Materials and Diagnosis & Treatment Devices of Zhejiang Province, Wenzhou Institute, University of Chinese Academy of Sciences, Wenzhou, Zhejiang 325011, China
- Joint Research Centre on Medicine, The Affiliated Xiangshan Hospital of Wenzhou Medical University, Ningbo, Zhejiang 315700, China
| | - Jiandan Pan
- The Second Affiliated Hospital of Wenzhou Medical University, Wenzhou, Zhejiang 325035, China
| | - Yunlong Wu
- Engineering Research Center of Clinical Functional Materials and Diagnosis & Treatment Devices of Zhejiang Province, Wenzhou Institute, University of Chinese Academy of Sciences, Wenzhou, Zhejiang 325011, China
- School of Pharmaceutical Sciences, Xiamen University, Xiamen, Fujian 361102, China
| | - Lijiang Huang
- Joint Research Centre on Medicine, The Affiliated Xiangshan Hospital of Wenzhou Medical University, Ningbo, Zhejiang 315700, China
| | - Huaqiong Li
- Joint Research Centre on Medicine, The Affiliated Xiangshan Hospital of Wenzhou Medical University, Ningbo, Zhejiang 315700, China
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Da Silva J, Leal EC, Carvalho E, Silva EA. Innovative Functional Biomaterials as Therapeutic Wound Dressings for Chronic Diabetic Foot Ulcers. Int J Mol Sci 2023; 24:9900. [PMID: 37373045 DOI: 10.3390/ijms24129900] [Citation(s) in RCA: 6] [Impact Index Per Article: 6.0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/28/2023] [Revised: 05/19/2023] [Accepted: 06/06/2023] [Indexed: 06/29/2023] Open
Abstract
The imbalance of local and systemic factors in individuals with diabetes mellitus (DM) delays, or even interrupts, the highly complex and dynamic process of wound healing, leading to diabetic foot ulceration (DFU) in 15 to 25% of cases. DFU is the leading cause of non-traumatic amputations worldwide, posing a huge threat to the well-being of individuals with DM and the healthcare system. Moreover, despite all the latest efforts, the efficient management of DFUs still remains a clinical challenge, with limited success rates in treating severe infections. Biomaterial-based wound dressings have emerged as a therapeutic strategy with rising potential to handle the tricky macro and micro wound environments of individuals with DM. Indeed, biomaterials have long been related to unique versatility, biocompatibility, biodegradability, hydrophilicity, and wound healing properties, features that make them ideal candidates for therapeutic applications. Furthermore, biomaterials may be used as a local depot of biomolecules with anti-inflammatory, pro-angiogenic, and antimicrobial properties, further promoting adequate wound healing. Accordingly, this review aims to unravel the multiple functional properties of biomaterials as promising wound dressings for chronic wound healing, and to examine how these are currently being evaluated in research and clinical settings as cutting-edge wound dressings for DFU management.
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Affiliation(s)
- Jessica Da Silva
- CNC-Center for Neuroscience and Cell Biology, CIBB-Center for Innovative Biomedicine and Biotechnology, University of Coimbra, Rua Larga, 3004-504 Coimbra, Portugal
- PDBEB-Ph.D. Programme in Experimental Biology and Biomedicine, University of Coimbra, 3004-504 Coimbra, Portugal
- Institute of Interdisciplinary Research, University of Coimbra, Casa Costa Alemão, Rua Dom Francisco de Lemos, 3030-789 Coimbra, Portugal
- Department of Biomedical Engineering, Genome and Biomedical Sciences Facilities, UC Davis, 451 Health Sciences Dr., Davis, CA 95616, USA
| | - Ermelindo C Leal
- CNC-Center for Neuroscience and Cell Biology, CIBB-Center for Innovative Biomedicine and Biotechnology, University of Coimbra, Rua Larga, 3004-504 Coimbra, Portugal
- Institute of Interdisciplinary Research, University of Coimbra, Casa Costa Alemão, Rua Dom Francisco de Lemos, 3030-789 Coimbra, Portugal
| | - Eugénia Carvalho
- CNC-Center for Neuroscience and Cell Biology, CIBB-Center for Innovative Biomedicine and Biotechnology, University of Coimbra, Rua Larga, 3004-504 Coimbra, Portugal
- Institute of Interdisciplinary Research, University of Coimbra, Casa Costa Alemão, Rua Dom Francisco de Lemos, 3030-789 Coimbra, Portugal
| | - Eduardo A Silva
- Department of Biomedical Engineering, Genome and Biomedical Sciences Facilities, UC Davis, 451 Health Sciences Dr., Davis, CA 95616, USA
- Department of Chemistry, Bioscience, and Environmental Engineering, University of Stavanger, Kristine Bonnevies vei 22, 4021 Stavanger, Norway
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5
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Xu Y, Hu Q, Wei Z, Ou Y, Cao Y, Zhou H, Wang M, Yu K, Liang B. Advanced polymer hydrogels that promote diabetic ulcer healing: mechanisms, classifications, and medical applications. Biomater Res 2023; 27:36. [PMID: 37101201 PMCID: PMC10134570 DOI: 10.1186/s40824-023-00379-6] [Citation(s) in RCA: 5] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/02/2023] [Accepted: 04/14/2023] [Indexed: 04/28/2023] Open
Abstract
Diabetic ulcers (DUs) are one of the most serious complications of diabetes mellitus. The application of a functional dressing is a crucial step in DU treatment and is associated with the patient's recovery and prognosis. However, traditional dressings with a simple structure and a single function cannot meet clinical requirements. Therefore, researchers have turned their attention to advanced polymer dressings and hydrogels to solve the therapeutic bottleneck of DU treatment. Hydrogels are a class of gels with a three-dimensional network structure that have good moisturizing properties and permeability and promote autolytic debridement and material exchange. Moreover, hydrogels mimic the natural environment of the extracellular matrix, providing suitable surroundings for cell proliferation. Thus, hydrogels with different mechanical strengths and biological properties have been extensively explored as DU dressing platforms. In this review, we define different types of hydrogels and elaborate the mechanisms by which they repair DUs. Moreover, we summarize the pathological process of DUs and review various additives used for their treatment. Finally, we examine the limitations and obstacles that exist in the development of the clinically relevant applications of these appealing technologies. This review defines different types of hydrogels and carefully elaborate the mechanisms by which they repair diabetic ulcers (DUs), summarizes the pathological process of DUs, and reviews various bioactivators used for their treatment.
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Affiliation(s)
- Yamei Xu
- Department of Pathology, College of Basic Medicine, Chongqing Medical University, 1 Yixueyuan Road, Yuzhong Distinct, Chongqing, 400016, P.R. China
- Molecular Medicine Diagnostic and Testing Center, Chongqing Medical University, 1 Yixueyuan Road, Yuzhong Distinct, Chongqing, 400016, P.R. China
| | - Qiyuan Hu
- Department of Pathology, College of Basic Medicine, Chongqing Medical University, 1 Yixueyuan Road, Yuzhong Distinct, Chongqing, 400016, P.R. China
- Molecular Medicine Diagnostic and Testing Center, Chongqing Medical University, 1 Yixueyuan Road, Yuzhong Distinct, Chongqing, 400016, P.R. China
| | - Zongyun Wei
- Department of Pathology, College of Basic Medicine, Chongqing Medical University, 1 Yixueyuan Road, Yuzhong Distinct, Chongqing, 400016, P.R. China
- Molecular Medicine Diagnostic and Testing Center, Chongqing Medical University, 1 Yixueyuan Road, Yuzhong Distinct, Chongqing, 400016, P.R. China
| | - Yi Ou
- Department of Pathology, College of Basic Medicine, Chongqing Medical University, 1 Yixueyuan Road, Yuzhong Distinct, Chongqing, 400016, P.R. China
- Molecular Medicine Diagnostic and Testing Center, Chongqing Medical University, 1 Yixueyuan Road, Yuzhong Distinct, Chongqing, 400016, P.R. China
| | - Youde Cao
- Department of Pathology, College of Basic Medicine, Chongqing Medical University, 1 Yixueyuan Road, Yuzhong Distinct, Chongqing, 400016, P.R. China
- Molecular Medicine Diagnostic and Testing Center, Chongqing Medical University, 1 Yixueyuan Road, Yuzhong Distinct, Chongqing, 400016, P.R. China
- Department of Pathology, the First Affiliated Hospital of Chongqing Medical University, 1 Youyi Road, Yuzhong Distinct, Chongqing, 400042, P.R. China
| | - Hang Zhou
- Department of Pathology, College of Basic Medicine, Chongqing Medical University, 1 Yixueyuan Road, Yuzhong Distinct, Chongqing, 400016, P.R. China
| | - Mengna Wang
- Department of Pathology, College of Basic Medicine, Chongqing Medical University, 1 Yixueyuan Road, Yuzhong Distinct, Chongqing, 400016, P.R. China
- Molecular Medicine Diagnostic and Testing Center, Chongqing Medical University, 1 Yixueyuan Road, Yuzhong Distinct, Chongqing, 400016, P.R. China
| | - Kexiao Yu
- Department of Orthopedics, Chongqing Traditional Chinese Medicine Hospital, No. 6 Panxi Seventh Branch Road, Jiangbei District, Chongqing, 400021, P.R. China.
- Institute of Ultrasound Imaging of Chongqing Medical University, 1 Yixueyuan Road, Yuzhong Distinct, Chongqing, 400016, P.R. China.
| | - Bing Liang
- Department of Pathology, College of Basic Medicine, Chongqing Medical University, 1 Yixueyuan Road, Yuzhong Distinct, Chongqing, 400016, P.R. China.
- Molecular Medicine Diagnostic and Testing Center, Chongqing Medical University, 1 Yixueyuan Road, Yuzhong Distinct, Chongqing, 400016, P.R. China.
- Department of Pathology, the First Affiliated Hospital of Chongqing Medical University, 1 Youyi Road, Yuzhong Distinct, Chongqing, 400042, P.R. China.
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Cui J, Zhang S, Cheng S, Shen H. Current and future outlook of loaded components in hydrogel composites for the treatment of chronic diabetic ulcers. Front Bioeng Biotechnol 2023; 11:1077490. [PMID: 36860881 PMCID: PMC9968980 DOI: 10.3389/fbioe.2023.1077490] [Citation(s) in RCA: 3] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/23/2022] [Accepted: 01/17/2023] [Indexed: 02/16/2023] Open
Abstract
Due to recalcitrant microangiopathy and chronic infection, traditional treatments do not easily produce satisfactory results for chronic diabetic ulcers. In recent years, due to the advantages of high biocompatibility and modifiability, an increasing number of hydrogel materials have been applied to the treatment of chronic wounds in diabetic patients. Research on composite hydrogels has received increasing attention since loading different components can greatly increase the ability of composite hydrogels to treat chronic diabetic wounds. This review summarizes and details a variety of newly loaded components currently used in hydrogel composites for the treatment of chronic diabetic ulcers, such as polymer/polysaccharides/organic chemicals, stem cells/exosomes/progenitor cells, chelating agents/metal ions, plant extracts, proteins (cytokines/peptides/enzymes) and nucleoside products, and medicines/drugs, to help researchers understand the characteristics of these components in the treatment of diabetic chronic wounds. This review also discusses a number of components that have not yet been applied but have the potential to be loaded into hydrogels, all of which play roles in the biomedical field and may become important loading components in the future. This review provides a "loading component shelf" for researchers of composite hydrogels and a theoretical basis for the future construction of "all-in-one" hydrogels.
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Affiliation(s)
- Jiaming Cui
- Sichuan Provincial Orthopaedic Hospital, Chengdu, Sichuan, China,*Correspondence: Jiaming Cui,
| | - Siqi Zhang
- Guangzhou Medical University, Guangzhou, Guangdong, China
| | - Songmiao Cheng
- Sichuan Provincial Orthopaedic Hospital, Chengdu, Sichuan, China
| | - Hai Shen
- Sichuan Provincial Orthopaedic Hospital, Chengdu, Sichuan, China
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Li Q, Wang D, Jiang Z, Li R, Xue T, Lin C, Deng Y, Jin Y, Sun B. Advances of hydrogel combined with stem cells in promoting chronic wound healing. Front Chem 2022; 10:1038839. [PMID: 36518979 PMCID: PMC9742286 DOI: 10.3389/fchem.2022.1038839] [Citation(s) in RCA: 2] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/07/2022] [Accepted: 11/07/2022] [Indexed: 08/15/2023] Open
Abstract
Wounds can be divided into two categories, acute and chronic. Acute wounds heal through the normal wound healing process. However, chronic wounds take longer to heal, leading to inflammation, pain, serious complications, and an economic burden of treatment costs. In addition, diabetes and burns are common causes of chronic wounds that are difficult to treat. The rapid and thorough treatment of chronic wounds, including diabetes wounds and burns, represents a significant unmet medical need. Wound dressings play an essential role in chronic wound treatment. Various biomaterials for wound healing have been developed. Among these, hydrogels are widely used as wound care materials due to their good biocompatibility, moisturizing effect, adhesion, and ductility. Wound healing is a complex process influenced by multiple factors and regulatory mechanisms in which stem cells play an important role. With the deepening of stem cell and regenerative medicine research, chronic wound treatment using stem cells has become an important field in medical research. More importantly, the combination of stem cells and stem cell derivatives with hydrogel is an attractive research topic in hydrogel preparation that offers great potential in chronic wound treatment. This review will illustrate the development and application of advanced stem cell therapy-based hydrogels in chronic wound healing, especially in diabetic wounds and burns.
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Affiliation(s)
- Qirong Li
- Department of Hepatobiliary and Pancreas Surgery, China-Japan Union Hospital of Jilin University, Changchun, China
- Laboratory Animal Center, College of Animal Science, Jilin University, Changchun, China
| | - Dongxu Wang
- Laboratory Animal Center, College of Animal Science, Jilin University, Changchun, China
| | - Ziping Jiang
- Department of Hand and Foot Surgery, The First Hospital of Jilin University, Changchun, China
| | - Rong Li
- Laboratory Animal Center, College of Animal Science, Jilin University, Changchun, China
| | - Tianyi Xue
- Laboratory Animal Center, College of Animal Science, Jilin University, Changchun, China
| | - Chao Lin
- School of Grain Science and Technology, Jilin Business and Technology College, Changchun, China
| | - Yongzhi Deng
- School of Pharmacy, Changchun University of Chinese Medicine, Changchun, China
| | - Ye Jin
- School of Pharmacy, Changchun University of Chinese Medicine, Changchun, China
| | - Baozhen Sun
- Department of Hepatobiliary and Pancreas Surgery, China-Japan Union Hospital of Jilin University, Changchun, China
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Preparation of biodegradable carboxymethyl cellulose/dopamine/Ag NPs cryogel for rapid hemostasis and bacteria-infected wound repair. Int J Biol Macromol 2022; 222:272-284. [PMID: 36152700 DOI: 10.1016/j.ijbiomac.2022.09.172] [Citation(s) in RCA: 11] [Impact Index Per Article: 5.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/10/2022] [Revised: 09/15/2022] [Accepted: 09/19/2022] [Indexed: 11/21/2022]
Abstract
Massive hemorrhage caused by accident or surgery is a major factor in accidental death. In addition, bacterial infection is also an important threat after bleeding. Cryogels with interpenetrating macroporous structures pose great application prospects in rapid hemostasis and infected wound repair. In this study, cryogels with different pore size are prepared by carboxymethyl cellulose (CMC) and dopamine (DA). The CMC grafted with different DA amounts is crosslinked by free DA through oxidative polymerization at low temperatures to form cryogels with different pore sizes. And the CMC/DA-3 cryogel is chosen as the optimal group for its high porosity, suitable mechanical, and good hemostatic ability. CMC/DA-3 cryogel is loaded with silver nanoparticles (Ag NPs) to prepare hemostatic cryogel with antibacterial properties. Antibacterial tests and animal hemostasis experiments confirm that the CMC/DA-3/Ag cryogel has good antibacterial properties and can finish rapid hemostasis. In the S. aureus infection skin defect model, the wound healing is significantly improved compared with commercial gelatin sponge. In summary, the novel cryogel has great potential in rapid hemostasis and infected wound healing.
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9
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Idumah CI. Recently emerging advancements in polymeric cryogel nanostructures and biomedical applications. INT J POLYM MATER PO 2022. [DOI: 10.1080/00914037.2022.2097678] [Citation(s) in RCA: 2] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/28/2022]
Affiliation(s)
- Christopher Igwe Idumah
- Department of Polymer Engineering, Faculty of Engineering, Nnamdi Azikiwe University Awka, Awka, Nigeria
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Hydrogel loading 2D montmorillonite exfoliated by anti-inflammatory Lycium barbarum L. polysaccharides for advanced wound dressing. Int J Biol Macromol 2022; 209:50-58. [PMID: 35331795 DOI: 10.1016/j.ijbiomac.2022.03.089] [Citation(s) in RCA: 10] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/21/2021] [Revised: 03/15/2022] [Accepted: 03/15/2022] [Indexed: 01/03/2023]
Abstract
Designing wound dressing materials with hemocompatibility, suitable mechanical properties, outstanding hemostatic effects and anti-inflammatory activity is of great practical significance for wound management. Herein, a hemostatic hydrogel loaded with Lycium barbarum L. polysaccharide (LBP)-functionalized ultrathin MMT nanosheets (L-MMT NSs) was fabricated for efficient hemostasis and wound healing. Loading the L-MMT NSs into polyvinyl alcohol (PVA), the obtained P-L-MMT hydrogel exhibited a 3D porous structure with good swelling properties, cytocompatibility, hemocompatibility, and anti-inflammatory activity. Importantly, in vivo investigations demonstrated that the P-L-MMT hydrogel exerts outstanding hemostasis activity in the hemorrhaging mouse liver model and reduces tissue damage caused by inflammation to shorten wound healing time. Altogether, the convenient exfoliation and functionalization of bulk MMT using LBPs make this inexpensive and rising nanostructure more attractive in the application of nanomedicine. Moreover, due to the synergy between hemostasis and anti-inflammation, this newly developed multifunctional P-L-MMT hydrogel represents a promising material in biomedical fields.
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