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Zhang F, Zheng Y, Wang L, Kang Y, Dong H, Li H, Zhao X, Li B, Chen H, Qiu J, Sang Y, Liu C, Liu H, Wang S. Implantable Zinc Ion Battery and Osteogenesis-Immunoregulation Bifunction of Its Catabolite. ACS NANO 2024. [PMID: 39083700 DOI: 10.1021/acsnano.4c04705] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 08/02/2024]
Abstract
Biocompatible batteries can power implantable electronic devices and have broad applications in medicine. However, the controlled degradation of implantable batteries, the impact of battery catabolites on surrounding tissues, and wireless charging designs are often overlooked. Here, we designed an implantable zinc ion battery (ZIB) using a gelatin/polycaprolactone-based composite gel electrolyte. The prepared ZIBs deliver a high specific capacity of 244.0 mA h g-1 (0.5C) and long cycling stability of 300 cycles (4C). ZIBs were completely degraded within 8 weeks in rats and 30 days in a phosphate-buffered saline lipase solution, demonstrating good biocompatibility and degradability. ZIBs catabolites induced macrophage M2 polarization and exhibited anti-inflammatory properties, with mRNA levels of the M2 markers Arg-1 and CD206 up-regulated 15.8-fold and 13.4-fold, respectively, compared to the blank control group. Meanwhile, the expressions of two typical osteogenic markers, osteopontin and osteocalcin, were up-regulated by 3.6-fold and 5.6-fold, respectively, demonstrating that designed ZIBs promoted osteogenic differentiation of bone marrow mesenchymal stem cells. Additionally, a wireless energy transmission module was designed using 3D printing technology to realize real-time charging of the ZIB in rats. The designed ZIB is a promising power source for implantable medical electronic devices and also serves as a functional material to accelerate bone repair.
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Affiliation(s)
- Feng Zhang
- State Key Laboratory of Crystal Materials, Shandong University Jinan 250100, P. R. China
| | - Yubo Zheng
- Department of Oral and Maxillofacial Surgery, Qilu Hospital of Shandong University.Jinan 250012, P. R. China
| | - Liang Wang
- State Key Laboratory of Crystal Materials, Shandong University Jinan 250100, P. R. China
| | - Yongchao Kang
- State Key Laboratory of Crystal Materials, Shandong University Jinan 250100, P. R. China
| | - Huitong Dong
- State Key Laboratory of Crystal Materials, Shandong University Jinan 250100, P. R. China
| | - Houzhen Li
- State Key Laboratory of Crystal Materials, Shandong University Jinan 250100, P. R. China
| | - Xiaoru Zhao
- State Key Laboratory of Crystal Materials, Shandong University Jinan 250100, P. R. China
| | - Boyan Li
- Department of Neurosurgery, Qilu Hospital, Cheeloo College of Medicine and Institute of Brain and Brain-Inspired Science, Shandong University, Jinan 250012 Shandong, China
| | - Hao Chen
- State Key Laboratory of Crystal Materials, Shandong University Jinan 250100, P. R. China
| | - Jichuan Qiu
- State Key Laboratory of Crystal Materials, Shandong University Jinan 250100, P. R. China
| | - Yuanhua Sang
- State Key Laboratory of Crystal Materials, Shandong University Jinan 250100, P. R. China
| | - Chao Liu
- Department of Oral and Maxillofacial Surgery, Qilu Hospital of Shandong University.Jinan 250012, P. R. China
| | - Hong Liu
- State Key Laboratory of Crystal Materials, Shandong University Jinan 250100, P. R. China
| | - Shuhua Wang
- State Key Laboratory of Crystal Materials, Shandong University Jinan 250100, P. R. China
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Deaconu M, Prelipcean AM, Brezoiu AM, Mitran RA, Seciu-Grama AM, Matei C, Berger D. Design of Scaffolds Based on Zinc-Modified Marine Collagen and Bilberry Leaves Extract-Loaded Silica Nanoparticles as Wound Dressings. Int J Nanomedicine 2024; 19:7673-7689. [PMID: 39099793 PMCID: PMC11296363 DOI: 10.2147/ijn.s466905] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/02/2024] [Accepted: 07/09/2024] [Indexed: 08/06/2024] Open
Abstract
Purpose In this study, wound dressings were designed using zinc-modified marine collagen porous scaffold as host for wild bilberry (WB) leaves extract immobilized in functionalized mesoporous silica nanoparticles (MSN). These new composites were developed as an alternative to conventional wound dressings. In addition to the antibacterial activity of classic antibiotics, a polyphenolic extract could act as an antioxidant and/or an anti-inflammatory agent as well. Methods Wild bilberry leaves extract was prepared by ultrasound-assisted extraction in ethanol and its properties were evaluated by UV-Vis spectroscopy (radical scavenging activity, total amount of polyphenols, flavonoids, anthocyanins, and condensed tannins). The extract components were identified by HPLC, and the antidiabetic properties of the extract were evaluated via α-glucosidase inhibitory activity. Spherical MSN were modified with propionic acid or proline moieties by post-synthesis method and used as carriers for the WB leaves extract. The textural and structural features of functionalized MSN were assessed by nitrogen adsorption/desorption isotherms, small-angle XRD, SEM, TEM, and FTIR spectroscopy. The composite porous scaffolds were prepared by freeze drying of the zinc-modified collagen suspension containing WB extract loaded silica nanoparticles. Results The properties of the new composites demonstrated enhanced properties in terms of thermal stability of the zinc-collagen scaffold, without altering the protein conformation, and stimulation of NCTC fibroblasts mobility. The results of the scratch assay showed contributions of both zinc ions from collagen and the polyphenolic extract incorporated in functionalized silica in the wound healing process. The extract encapsulated in functionalized MSN proved enhanced biological activities compared to the extract alone: better inhibition of P. aeruginosa and S. aureus strains, higher biocompatibility on HaCaT keratinocytes, and anti-inflammatory potential demonstrated by reduced IL-1β and TNF-α levels. Conclusion The experimental data shows that the novel composites can be used for the development of effective wound dressings.
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Affiliation(s)
- Mihaela Deaconu
- CAMPUS Research Institute, National University of Science and Technology Politehnica Bucharest, Bucharest, 060042, Romania
- Faculty of Chemical Engineering and Biotechnologies, National University of Science and Technology Politehnica Bucharest, Bucharest, 011061, Romania
| | | | - Ana-Maria Brezoiu
- Faculty of Chemical Engineering and Biotechnologies, National University of Science and Technology Politehnica Bucharest, Bucharest, 011061, Romania
| | - Raul-Augustin Mitran
- ‘Ilie Murgulescu’ Institute of Physical Chemistry, Romanian Academy, Bucharest, 060021, Romania
| | - Ana-Maria Seciu-Grama
- Faculty of Chemical Engineering and Biotechnologies, National University of Science and Technology Politehnica Bucharest, Bucharest, 011061, Romania
| | - Cristian Matei
- Faculty of Chemical Engineering and Biotechnologies, National University of Science and Technology Politehnica Bucharest, Bucharest, 011061, Romania
| | - Daniela Berger
- Faculty of Chemical Engineering and Biotechnologies, National University of Science and Technology Politehnica Bucharest, Bucharest, 011061, Romania
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Zhang Y, Dong Q, Zhao X, Sun Y, Lin X, Zhang X, Wang T, Yang T, Jiang X, Li J, Cao Z, Cai T, Liu W, Zhang H, Bai J, Yao Q. Honeycomb-like biomimetic scaffold by functionalized antibacterial hydrogel and biodegradable porous Mg alloy for osteochondral regeneration. Front Bioeng Biotechnol 2024; 12:1417742. [PMID: 39070169 PMCID: PMC11273084 DOI: 10.3389/fbioe.2024.1417742] [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: 04/15/2024] [Accepted: 06/20/2024] [Indexed: 07/30/2024] Open
Abstract
Introduction: Osteochondral repair poses a significant challenge due to its unique pathological mechanisms and complex repair processes, particularly in bacterial tissue conditions resulting from open injuries, infections, and surgical contamination. This study introduces a biomimetic honeycomb-like scaffold (Zn-AlgMA@Mg) designed for osteochondral repair. The scaffold consists of a dicalcium phosphate dihydrate (DCPD)-coated porous magnesium scaffold (DCPD Mg) embedded within a dual crosslinked sodium alginate hydrogel (Zn-AlgMA). This combination aims to synergistically exert antibacterial and osteochondral integrated repair properties. Methods: The Zn-AlgMA@Mg scaffold was fabricated by coating porous magnesium scaffolds with DCPD and embedding them within a dual crosslinked sodium alginate hydrogel. The structural and mechanical properties of the DCPD Mg scaffold were characterized using scanning electron microscopy (SEM) and mechanical testing. The microstructural features and hydrophilicity of Zn-AlgMA were assessed. In vitro studies were conducted to evaluate the controlled release of magnesium and zinc ions, as well as the scaffold's osteogenic, chondrogenic, and antibacterial properties. Proteomic analysis was performed to elucidate the mechanism of osteochondral integrated repair. In vivo efficacy was evaluated using a rabbit full-thickness osteochondral defect model, with micro-CT evaluation, quantitative analysis, and histological staining (hematoxylin-eosin, Safranin-O, and Masson's trichrome). Results: The DCPD Mg scaffold exhibited a uniform porous structure and superior mechanical properties. The Zn-AlgMA hydrogel displayed consistent microstructural features and enhanced hydrophilicity. The Zn-AlgMA@Mg scaffold provided controlled release of magnesium and zinc ions, promoting cell proliferation and vitality. In vitro studies demonstrated significant osteogenic and chondrogenic properties, as well as antibacterial efficacy. Proteomic analysis revealed the underlying mechanism of osteochondral integrated repair facilitated by the scaffold. Micro-CT evaluation and histological analysis confirmed successful osteochondral integration in the rabbit model. Discussion: The biomimetic honeycomb-like scaffold (Zn-AlgMA@Mg) demonstrated promising results for osteochondral repair, effectively addressing the challenges posed by bacterial tissue conditions. The scaffold's ability to release magnesium and zinc ions in a controlled manner contributed to its significant osteogenic, chondrogenic, and antibacterial properties. Proteomic analysis provided insights into the scaffold's mechanism of action, supporting its potential for integrated osteochondral regeneration. The successful in vivo results highlight the scaffold's efficacy, making it a promising biomaterial for future applications in osteochondral repair.
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Affiliation(s)
- Yongqiang Zhang
- Department of Orthopedic Surgery, Institute of Digital Medicine, Nanjing First Hospital, Nanjing Medical University, Nanjing, China
- Key Lab of Additive Manufacturing Technology, Institute of Digital Medicine, Nanjing Medical University, Nanjing, China
- Research Center of Digital Medicine and 3D Printing Technology of Jiangsu Province, Nanjing, China
| | - Qiangsheng Dong
- School of Materials Science and Engineering, Jiangsu Key Laboratory of Advanced Structural Materials and Application Technology, Nanjing Institute of Technology, Nanjing, China
| | - Xiao Zhao
- Department of Orthopedic Surgery, Institute of Digital Medicine, Nanjing First Hospital, Nanjing Medical University, Nanjing, China
- Key Lab of Additive Manufacturing Technology, Institute of Digital Medicine, Nanjing Medical University, Nanjing, China
- Research Center of Digital Medicine and 3D Printing Technology of Jiangsu Province, Nanjing, China
| | - Yuzhi Sun
- Department of Orthopedic Surgery, Institute of Digital Medicine, Nanjing First Hospital, Nanjing Medical University, Nanjing, China
- Key Lab of Additive Manufacturing Technology, Institute of Digital Medicine, Nanjing Medical University, Nanjing, China
- Research Center of Digital Medicine and 3D Printing Technology of Jiangsu Province, Nanjing, China
| | - Xin Lin
- Department of Laboratory Medicine, Nanjing First Hospital, Nanjing Medical University, Nanjing, Jiangsu, China
| | - Xin Zhang
- Department of Orthopedic Surgery, Institute of Digital Medicine, Nanjing First Hospital, Nanjing Medical University, Nanjing, China
- Key Lab of Additive Manufacturing Technology, Institute of Digital Medicine, Nanjing Medical University, Nanjing, China
- Research Center of Digital Medicine and 3D Printing Technology of Jiangsu Province, Nanjing, China
| | - Tianming Wang
- Department of Orthopedic Surgery, Institute of Digital Medicine, Nanjing First Hospital, Nanjing Medical University, Nanjing, China
- Key Lab of Additive Manufacturing Technology, Institute of Digital Medicine, Nanjing Medical University, Nanjing, China
- Research Center of Digital Medicine and 3D Printing Technology of Jiangsu Province, Nanjing, China
| | - Tianxiao Yang
- Department of Orthopedic Surgery, Institute of Digital Medicine, Nanjing First Hospital, Nanjing Medical University, Nanjing, China
- Key Lab of Additive Manufacturing Technology, Institute of Digital Medicine, Nanjing Medical University, Nanjing, China
- Research Center of Digital Medicine and 3D Printing Technology of Jiangsu Province, Nanjing, China
| | - Xiao Jiang
- Department of Orthopedic Surgery, Institute of Digital Medicine, Nanjing First Hospital, Nanjing Medical University, Nanjing, China
- Key Lab of Additive Manufacturing Technology, Institute of Digital Medicine, Nanjing Medical University, Nanjing, China
- Research Center of Digital Medicine and 3D Printing Technology of Jiangsu Province, Nanjing, China
| | - Jiaxiang Li
- Department of Orthopedic Surgery, Institute of Digital Medicine, Nanjing First Hospital, Nanjing Medical University, Nanjing, China
- Key Lab of Additive Manufacturing Technology, Institute of Digital Medicine, Nanjing Medical University, Nanjing, China
- Research Center of Digital Medicine and 3D Printing Technology of Jiangsu Province, Nanjing, China
| | - Zhicheng Cao
- Department of Orthopedic Surgery, Institute of Digital Medicine, Nanjing First Hospital, Nanjing Medical University, Nanjing, China
- Key Lab of Additive Manufacturing Technology, Institute of Digital Medicine, Nanjing Medical University, Nanjing, China
- Research Center of Digital Medicine and 3D Printing Technology of Jiangsu Province, Nanjing, China
| | - Tingwen Cai
- Department of Orthopedic Surgery, Institute of Digital Medicine, Nanjing First Hospital, Nanjing Medical University, Nanjing, China
- Key Lab of Additive Manufacturing Technology, Institute of Digital Medicine, Nanjing Medical University, Nanjing, China
- Research Center of Digital Medicine and 3D Printing Technology of Jiangsu Province, Nanjing, China
| | - Wanshun Liu
- Department of Orthopedic Surgery, Institute of Digital Medicine, Nanjing First Hospital, Nanjing Medical University, Nanjing, China
- Key Lab of Additive Manufacturing Technology, Institute of Digital Medicine, Nanjing Medical University, Nanjing, China
- Research Center of Digital Medicine and 3D Printing Technology of Jiangsu Province, Nanjing, China
| | - Hongjing Zhang
- Department of Orthopedic Surgery, Institute of Digital Medicine, Nanjing First Hospital, Nanjing Medical University, Nanjing, China
- Key Lab of Additive Manufacturing Technology, Institute of Digital Medicine, Nanjing Medical University, Nanjing, China
- Research Center of Digital Medicine and 3D Printing Technology of Jiangsu Province, Nanjing, China
| | - Jing Bai
- School of Materials Science and Engineering, Southeast University, Nanjing, Jiangsu, China
- Institute of Medical Devices (Suzhou), Southeast University, Suzhou, China
| | - Qingqiang Yao
- Department of Orthopedic Surgery, Institute of Digital Medicine, Nanjing First Hospital, Nanjing Medical University, Nanjing, China
- Key Lab of Additive Manufacturing Technology, Institute of Digital Medicine, Nanjing Medical University, Nanjing, China
- Research Center of Digital Medicine and 3D Printing Technology of Jiangsu Province, Nanjing, China
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Zhou Y, Ma X, Yu C, Tian Y, Liang Q, Xin M, Sun P, Liu F, Chao D, Jia X, Wang C, Lu G. A Wearable Self-Charging Electroceutical Device for Bacteria-Infected Wound Healing. ACS NANO 2024; 18:15681-15694. [PMID: 38848285 DOI: 10.1021/acsnano.4c01818] [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
The prolonged wound-healing process caused by pathogen infection remains a major public health challenge. The developed electrical antibiotic administration typically requires metal electrodes wired to a continuous power supply, restricting their use beyond clinical environments. To obviate the necessity for antibiotics and an external power source, we have developed a wearable synergistic electroceutical device composed of an air self-charging Zn battery. This battery integrates sustained tissue regeneration and antibacterial modalities while maintaining more than half of the initial capacity after ten cycles of chemical charging. In vitro bacterial/cell coculture with the self-charging battery demonstrates inhibited bacterial activity and enhanced cell function by simulating the endogenous electric field and dynamically engineering the microenvironment with released chemicals. This electroceutical device provides accelerated healing of a bacteria-infected wound by stimulating angiogenesis and modulating inflammation, while effectively inhibiting bacterial growth at the wound site. Considering the simple structure and easy operation for long-term treatment, this self-charging electroceutical device offers great potential for personalized wound care.
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Affiliation(s)
- Yan Zhou
- State Key Laboratory of Integrated Optoelectronics, College of Electronic Science and Engineering, Jilin University, Changchun 130012, China
| | - Xuenan Ma
- State Key Laboratory of Integrated Optoelectronics, College of Electronic Science and Engineering, Jilin University, Changchun 130012, China
| | - Changchun Yu
- School of Ophthalmology and Optometry, School of Biomedical Engineering, State Key Laboratory of Ophthalmology, Optometry, and Vision Science, Wenzhou Medical University, Wenzhou 325027, China
| | - Yaping Tian
- Department of Dermatology and Venerology of the First Hospital, Jilin University, Changchun 130021, China
| | - Qin Liang
- College of Chemistry, Jilin University, Changchun 130012, China
| | - Meiying Xin
- Jilin Provincial Key Laboratory of Pediatric Neurology, Department of Pediatric Neurology, The First Hospital of Jilin University, Changchun 130021, China
| | - Peng Sun
- State Key Laboratory of Integrated Optoelectronics, College of Electronic Science and Engineering, Jilin University, Changchun 130012, China
- International Center of Future Science, Jilin University, Changchun 130012, China
| | - Fangmeng Liu
- State Key Laboratory of Integrated Optoelectronics, College of Electronic Science and Engineering, Jilin University, Changchun 130012, China
- International Center of Future Science, Jilin University, Changchun 130012, China
| | - Danming Chao
- College of Chemistry, Jilin University, Changchun 130012, China
| | - Xiaoteng Jia
- State Key Laboratory of Integrated Optoelectronics, College of Electronic Science and Engineering, Jilin University, Changchun 130012, China
| | - Caiyun Wang
- Intelligent Polymer Research Institute, AIIM Facility, University of Wollongong, Wollongong, New South Wales 2522, Australia
| | - Geyu Lu
- State Key Laboratory of Integrated Optoelectronics, College of Electronic Science and Engineering, Jilin University, Changchun 130012, China
- International Center of Future Science, Jilin University, Changchun 130012, China
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Pramanik S, Alhomrani M, Alamri AS, Alsanie WF, Nainwal P, Kimothi V, Deepak A, Sargsyan AS. Unveiling the versatility of gelatin methacryloyl hydrogels: a comprehensive journey into biomedical applications. Biomed Mater 2024; 19:042008. [PMID: 38768611 DOI: 10.1088/1748-605x/ad4df7] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/20/2024] [Accepted: 05/20/2024] [Indexed: 05/22/2024]
Abstract
Gelatin methacryloyl (GelMA) hydrogels have gained significant recognition as versatile biomaterials in the biomedical domain. GelMA hydrogels emulate vital characteristics of the innate extracellular matrix by integrating cell-adhering and matrix metalloproteinase-responsive peptide motifs. These features enable cellular proliferation and spreading within GelMA-based hydrogel scaffolds. Moreover, GelMA displays flexibility in processing, as it experiences crosslinking when exposed to light irradiation, supporting the development of hydrogels with adjustable mechanical characteristics. The drug delivery landscape has been reshaped by GelMA hydrogels, offering a favorable platform for the controlled and sustained release of therapeutic actives. The tunable physicochemical characteristics of GelMA enable precise modulation of the kinetics of drug release, ensuring optimal therapeutic effectiveness. In tissue engineering, GelMA hydrogels perform an essential role in the design of the scaffold, providing a biomimetic environment conducive to cell adhesion, proliferation, and differentiation. Incorporating GelMA in three-dimensional printing further improves its applicability in drug delivery and developing complicated tissue constructs with spatial precision. Wound healing applications showcase GelMA hydrogels as bioactive dressings, fostering a conducive microenvironment for tissue regeneration. The inherent biocompatibility and tunable mechanical characteristics of GelMA provide its efficiency in the closure of wounds and tissue repair. GelMA hydrogels stand at the forefront of biomedical innovation, offering a versatile platform for addressing diverse challenges in drug delivery, tissue engineering, and wound healing. This review provides a comprehensive overview, fostering an in-depth understanding of GelMA hydrogel's potential impact on progressing biomedical sciences.
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Affiliation(s)
- Sheersha Pramanik
- Department of Biotechnology, Bhupat and Jyoti Mehta School of Biosciences, Indian Institute of Technology Madras, Chennai 600036, Tamil Nadu, India
| | - Majid Alhomrani
- Department of Clinical Laboratory Sciences, The faculty of Applied Medical Sciences, Taif University, Taif, Saudi Arabia
- Centre of Biomedical Sciences Research (CBSR), Deanship of Scientific Research, Taif University, Taif, Saudi Arabia
| | - Abdulhakeem S Alamri
- Department of Clinical Laboratory Sciences, The faculty of Applied Medical Sciences, Taif University, Taif, Saudi Arabia
- Centre of Biomedical Sciences Research (CBSR), Deanship of Scientific Research, Taif University, Taif, Saudi Arabia
| | - Walaa F Alsanie
- Department of Clinical Laboratory Sciences, The faculty of Applied Medical Sciences, Taif University, Taif, Saudi Arabia
- Centre of Biomedical Sciences Research (CBSR), Deanship of Scientific Research, Taif University, Taif, Saudi Arabia
| | - Pankaj Nainwal
- School of Pharmacy, Graphic Era Hill University, Dehradun 248001, India
| | - Vishwadeepak Kimothi
- Himalayan Institute of Pharmacy and Research, Rajawala, Dehradun, Uttrakhand, India
| | - A Deepak
- Saveetha Institute of Medical and Technical Sciences, Saveetha School of Engineering, Chennai, Tamil Nadu 600128, India
| | - Armen S Sargsyan
- Scientific and Production Center 'Armbiotechnology' NAS RA, 14 Gyurjyan Str., Yerevan 0056, Armenia
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Bastos CM, Rocha F, Patinha C, Marinho-Reis P. Characterization of percutaneous absorption of calcium, magnesium, and potentially toxic elements in two tailored sulfurous therapeutic peloids: a comprehensive in vitro pilot study. INTERNATIONAL JOURNAL OF BIOMETEOROLOGY 2024; 68:1061-1072. [PMID: 38427095 PMCID: PMC11108904 DOI: 10.1007/s00484-024-02644-2] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 12/04/2023] [Revised: 02/20/2024] [Accepted: 02/24/2024] [Indexed: 03/02/2024]
Abstract
Pelotherapy treatments in thermal spas, which utilize peloids composed of clay minerals mixed with saltwater or mineral-medicinal water, can have various effects on spa users, ranging from therapeutic to potential adverse reactions. Despite the widespread use of peloids, comprehensive information on the penetration and permeation of essential and potentially toxic elements into deeper layers of the skin during pelotherapy is limited. Understanding the concentrations of these elements is crucial for evaluating therapeutic benefits and ensuring safety. This study investigates the in vitro availability and absorption of calcium, magnesium, and potentially toxic elements in two peloids, considering their formulation matrix. To replicate the pelotherapy methodology, an in vitro permeation experiment was conducted using a vertical diffusion chamber (Franz cells) and a biological system with human skin membranes from five Caucasian women, age range between 25 and 51 years. The experiment involved heating the peloids to 45℃. The results emphasize the possible transport properties of chemical elements in peloids, providing valuable information related to potential therapeutic efficacy and safety considerations. Despite no apparent differences between peloids' chemical composition, the method identified permeation variations among chemical elements. The methodology employed in this study adheres to the guidelines outlined by OECD for analyzing skin absorption through an in vitro approach. Furthermore, it aligns with the associated OECD guidance document for conducting skin absorption studies. The replicability of this methodology not only facilitates the analysis of peloids pre-formulation but also provides a robust means to evaluate the effectiveness of therapeutic elements during topical administration, particularly those with potential toxicity concerns.
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Affiliation(s)
- Carla Marina Bastos
- Department of Geosciences, GeoBioTec Research Centre, University of Aveiro, Aveiro, 3810-193, Portugal.
- Exatronic, Aveiro, Lda. 3800-373, Portugal.
| | - Fernando Rocha
- Department of Geosciences, GeoBioTec Research Centre, University of Aveiro, Aveiro, 3810-193, Portugal
| | - Carla Patinha
- Department of Geosciences, GeoBioTec Research Centre, University of Aveiro, Aveiro, 3810-193, Portugal
| | - Paula Marinho-Reis
- Institute of Earth Sciences (ICT), Pole of the University of Minho, University of Minho, Braga, 4710-057, Portugal
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Che S, Yang Y, Li Z, Su Z, Zhang S. Integration of Zn 2+, ATP, and bFGF to Nanodressing with Core-Shell Structure Fabricated by Emulsion Electrospinning for Wound Healing. ACS APPLIED BIO MATERIALS 2024; 7:3316-3329. [PMID: 38691017 DOI: 10.1021/acsabm.4c00258] [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] [Indexed: 05/03/2024]
Abstract
Basic fibroblast growth factor (bFGF) plays an important role in active wound repair. However, the existing dosage forms in clinical applications are mainly sprays and freeze-dried powders, which are prone to inactivation and cannot achieve a controlled release. In this study, a bioactive wound dressing named bFGF-ATP-Zn/polycaprolactone (PCL) nanodressing with a "core-shell" structure was fabricated by emulsion electrospinning, enabling the sustained release of bFGF. Based on the coordination and electrostatic interactions among bFGF, ATP, and Zn2+, as well as their synergistic effect on promoting wound healing, a bFGF-ATP-Zn ternary combination system was prepared with higher cell proliferation activity and used as the water phase for emulsion electrospinning. The bFGF-ATP-Zn/PCL nanodressing demonstrated improved mechanical properties, sustained release of bFGF, cytocompatibility, and hemocompatibility. It increased the proliferation activity of human dermal fibroblasts (HDFs) and enhanced collagen secretion by 1.39 and 3.45 times, respectively, while reducing the hemolysis rate to 3.13%. The application of the bFGF-ATP-Zn/PCL nanodressing in mouse full-thickness skin defect repair showed its ability to accelerate wound healing and reduce wound scarring within 14 days. These results provide a research basis for the development and application of this bioactive wound dressing product.
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Affiliation(s)
- Shiyi Che
- State Key Laboratory of Biochemical Engineering, Institute of Process Engineering, Chinese Academy of Sciences, Beijing 100190, China
- University of Chinese Academy of Sciences, No. 19 Yuquan Road, Shijingshan District, Beijing 100049, China
| | - Yanli Yang
- State Key Laboratory of Biochemical Engineering, Institute of Process Engineering, Chinese Academy of Sciences, Beijing 100190, China
| | - Zhengjun Li
- State Key Laboratory of Biochemical Engineering, Institute of Process Engineering, Chinese Academy of Sciences, Beijing 100190, China
- Key Laboratory of Biopharmaceutical Preparation and Delivery, Chinese Academy of Sciences, Beijing 100190, China
| | - Zhiguo Su
- State Key Laboratory of Biochemical Engineering, Institute of Process Engineering, Chinese Academy of Sciences, Beijing 100190, China
- Key Laboratory of Biopharmaceutical Preparation and Delivery, Chinese Academy of Sciences, Beijing 100190, China
| | - Songping Zhang
- State Key Laboratory of Biochemical Engineering, Institute of Process Engineering, Chinese Academy of Sciences, Beijing 100190, China
- Key Laboratory of Biopharmaceutical Preparation and Delivery, Chinese Academy of Sciences, Beijing 100190, China
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Liu Y, Lin S, Xu Z, Wu Y, Wang G, Yang G, Cao L, Chang H, Zhou M, Jiang X. High-Performance Hydrogel-Encapsulated Engineered Exosomes for Supporting Endoplasmic Reticulum Homeostasis and Boosting Diabetic Bone Regeneration. ADVANCED SCIENCE (WEINHEIM, BADEN-WURTTEMBERG, GERMANY) 2024; 11:e2309491. [PMID: 38380490 PMCID: PMC11077675 DOI: 10.1002/advs.202309491] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 12/06/2023] [Revised: 02/09/2024] [Indexed: 02/22/2024]
Abstract
The regeneration of bone defects in diabetic patients still faces challenges, as the intrinsic healing process is impaired by hyperglycemia. Inspired by the discovery that the endoplasmic reticulum (ER) is in a state of excessive stress and dysfunction under hyperglycemia, leading to osteogenic disorder, a novel engineered exosome is proposed to modulate ER homeostasis for restoring the function of mesenchymal stem cells (MSCs). The results indicate that the constructed engineered exosomes efficiently regulate ER homeostasis and dramatically facilitate the function of MSCs in the hyperglycemic niche. Additionally, the underlying therapeutic mechanism of exosomes is elucidated. The results reveal that exosomes can directly provide recipient cells with SHP2 for the activation of mitophagy and elimination of mtROS, which is the immediate cause of ER dysfunction. To maximize the therapeutic effect of engineered exosomes, a high-performance hydrogel with self-healing, bioadhesive, and exosome-conjugating properties is applied to encapsulate the engineered exosomes for in vivo application. In vivo, evaluation in diabetic bone defect repair models demonstrates that the engineered exosomes delivering hydrogel system intensively enhance osteogenesis. These findings provide crucial insight into the design and biological mechanism of ER homeostasis-based tissue-engineering strategies for diabetic bone regeneration.
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Affiliation(s)
- Yulan Liu
- Department of ProsthodonticsShanghai Ninth People's HospitalShanghai Jiao Tong University School of MedicineCollege of StomatologyShanghai Jiao Tong UniversityNational Center for StomatologyNational Clinical Research Center for Oral DiseasesShanghai Key Laboratory of StomatologyShanghai Research Institute of StomatologyShanghai Engineering Research Center of Advanced Dental Technology and MaterialsShanghai200125China
| | - Sihan Lin
- Department of ProsthodonticsShanghai Ninth People's HospitalShanghai Jiao Tong University School of MedicineCollege of StomatologyShanghai Jiao Tong UniversityNational Center for StomatologyNational Clinical Research Center for Oral DiseasesShanghai Key Laboratory of StomatologyShanghai Research Institute of StomatologyShanghai Engineering Research Center of Advanced Dental Technology and MaterialsShanghai200125China
| | - Zeqian Xu
- Department of ProsthodonticsShanghai Ninth People's HospitalShanghai Jiao Tong University School of MedicineCollege of StomatologyShanghai Jiao Tong UniversityNational Center for StomatologyNational Clinical Research Center for Oral DiseasesShanghai Key Laboratory of StomatologyShanghai Research Institute of StomatologyShanghai Engineering Research Center of Advanced Dental Technology and MaterialsShanghai200125China
| | - Yuqiong Wu
- Department of ProsthodonticsShanghai Ninth People's HospitalShanghai Jiao Tong University School of MedicineCollege of StomatologyShanghai Jiao Tong UniversityNational Center for StomatologyNational Clinical Research Center for Oral DiseasesShanghai Key Laboratory of StomatologyShanghai Research Institute of StomatologyShanghai Engineering Research Center of Advanced Dental Technology and MaterialsShanghai200125China
| | - Guifang Wang
- Department of ProsthodonticsShanghai Ninth People's HospitalShanghai Jiao Tong University School of MedicineCollege of StomatologyShanghai Jiao Tong UniversityNational Center for StomatologyNational Clinical Research Center for Oral DiseasesShanghai Key Laboratory of StomatologyShanghai Research Institute of StomatologyShanghai Engineering Research Center of Advanced Dental Technology and MaterialsShanghai200125China
| | - Guangzheng Yang
- Department of ProsthodonticsShanghai Ninth People's HospitalShanghai Jiao Tong University School of MedicineCollege of StomatologyShanghai Jiao Tong UniversityNational Center for StomatologyNational Clinical Research Center for Oral DiseasesShanghai Key Laboratory of StomatologyShanghai Research Institute of StomatologyShanghai Engineering Research Center of Advanced Dental Technology and MaterialsShanghai200125China
| | - Lingyan Cao
- Department of ProsthodonticsShanghai Ninth People's HospitalShanghai Jiao Tong University School of MedicineCollege of StomatologyShanghai Jiao Tong UniversityNational Center for StomatologyNational Clinical Research Center for Oral DiseasesShanghai Key Laboratory of StomatologyShanghai Research Institute of StomatologyShanghai Engineering Research Center of Advanced Dental Technology and MaterialsShanghai200125China
| | - Haishuang Chang
- Shanghai Institute of Precision MedicineShanghai Ninth People's HospitalShanghai Jiaotong University School of MedicineShanghai200125China
| | - Mingliang Zhou
- Department of ProsthodonticsShanghai Ninth People's HospitalShanghai Jiao Tong University School of MedicineCollege of StomatologyShanghai Jiao Tong UniversityNational Center for StomatologyNational Clinical Research Center for Oral DiseasesShanghai Key Laboratory of StomatologyShanghai Research Institute of StomatologyShanghai Engineering Research Center of Advanced Dental Technology and MaterialsShanghai200125China
| | - Xinquan Jiang
- Department of ProsthodonticsShanghai Ninth People's HospitalShanghai Jiao Tong University School of MedicineCollege of StomatologyShanghai Jiao Tong UniversityNational Center for StomatologyNational Clinical Research Center for Oral DiseasesShanghai Key Laboratory of StomatologyShanghai Research Institute of StomatologyShanghai Engineering Research Center of Advanced Dental Technology and MaterialsShanghai200125China
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9
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Cao H, Wang J, Hao Z, Zhao D. Gelatin-based biomaterials and gelatin as an additive for chronic wound repair. Front Pharmacol 2024; 15:1398939. [PMID: 38751781 PMCID: PMC11094280 DOI: 10.3389/fphar.2024.1398939] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/11/2024] [Accepted: 04/15/2024] [Indexed: 05/18/2024] Open
Abstract
Disturbing or disrupting the regular healing process of a skin wound may result in its progression to a chronic state. Chronic wounds often lead to increased infection because of their long healing time, malnutrition, and insufficient oxygen flow, subsequently affecting wound progression. Gelatin-the main structure of natural collagen-is widely used in biomedical fields because of its low cost, wide availability, biocompatibility, and degradability. However, gelatin may exhibit diverse tailored physical properties and poor antibacterial activity. Research on gelatin-based biomaterials has identified the challenges of improving gelatin's poor antibacterial properties and low mechanical properties. In chronic wounds, gelatin-based biomaterials can promote wound hemostasis, enhance peri-wound antibacterial and anti-inflammatory properties, and promote vascular and epithelial cell regeneration. In this article, we first introduce the natural process of wound healing. Second, we present the role of gelatin-based biomaterials and gelatin as an additive in wound healing. Finally, we present the future implications of gelatin-based biomaterials.
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Affiliation(s)
- Hongwei Cao
- Department of Otorhinolaryngology, The First Affiliated Hospital of China Medical University, Shenyang, China
| | - Jingren Wang
- Department of Prosthodontics, Affiliated Stomatological Hospital of China Medical University, Shenyang, China
| | - Zhanying Hao
- Department of General Surgery, The Fourth Affiliated Hospital of China Medical University, Shenyang, China
| | - Danyang Zhao
- Department of emergency Surgery, The Fourth Affiliated Hospital of China Medical University, Shenyang, China
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10
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Hou Y, Xu X, Zhou Y, Li Q, Zhu L, Liu C, Chen S, Pang J. Versatile Bioactive Glass/Zeolitic Imidazolate Framework-8-Based Skin Scaffolds toward High-Performance Wound Healing. ACS APPLIED MATERIALS & INTERFACES 2024; 16:8228-8237. [PMID: 38343190 DOI: 10.1021/acsami.3c14529] [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: 02/23/2024]
Abstract
Designing a novel biomaterial for wound healing is based on biocompatibility and excellent mechanical strength. In this study, bioactive glass (BG) and zeolitic imidazolate framework-8 (ZIF-8) have been incorporated into poly(ε-caprolactone)/poly(vinyl alcohol) (PCL/PVA) composite skin scaffolds via microfluidic electrospinning. Interestingly, the addition of ZIF-8 further strengthens the BG stability and demonstrates better antibacterial effects. Utilizing the slow release of Zn, Ca, and Si ions, it also significantly promotes growth factor expression and skin regeneration. In addition, it is further demonstrated by in vitro and in vivo studies that the prepared composite skin scaffolds possess excellent biocompatibility, antibacterial capabilities, and mechanical properties. The prepared BG/ZIF-8-loaded scaffold possesses high tensile strength (26 MPa) and excellent antibacterial properties (achieves 89.64 and 78.8% inhibition of E. coli and S. aureus, respectively), and cell viability increased by 51.2%. More importantly, the wound shrinkage of the BG/ZIF-8-loaded scaffold is better than that of an unloaded scaffold, and the shrinkage rates of PCL/PVA@BG/ZIF-8(1 wt %) group is 95% with 2.2 mm granulation growth thickness within 12 days. Thus, the composite skin scaffold loaded with BG/ZIF-8 prepared by microfluidic electrospinning provides a new perspective for accelerating wound healing and is a potential novel therapeutic strategy for efficient wound healing.
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Affiliation(s)
- Yongchun Hou
- State Key Laboratory of Materials-Oriented Chemical Engineering, College of Chemical Engineering, Jiangsu Key Laboratory of Fine Chemicals and Functional Polymer Materials, Nanjing Tech University, No. 5 Xin Mofan Road, Nanjing 210009, P. R. China
| | - Xiaowei Xu
- College of Food Science, Fujian Agriculture and Forestry University, Fuzhou 350002, P. R. China
| | - Yaqin Zhou
- State Key Laboratory of Materials-Oriented Chemical Engineering, College of Chemical Engineering, Jiangsu Key Laboratory of Fine Chemicals and Functional Polymer Materials, Nanjing Tech University, No. 5 Xin Mofan Road, Nanjing 210009, P. R. China
| | - Qing Li
- State Key Laboratory of Materials-Oriented Chemical Engineering, College of Chemical Engineering, Jiangsu Key Laboratory of Fine Chemicals and Functional Polymer Materials, Nanjing Tech University, No. 5 Xin Mofan Road, Nanjing 210009, P. R. China
| | - Liangliang Zhu
- State Key Laboratory of Materials-Oriented Chemical Engineering, College of Chemical Engineering, Jiangsu Key Laboratory of Fine Chemicals and Functional Polymer Materials, Nanjing Tech University, No. 5 Xin Mofan Road, Nanjing 210009, P. R. China
| | - Chang Liu
- State Key Laboratory of Materials-Oriented Chemical Engineering, College of Chemical Engineering, Jiangsu Key Laboratory of Fine Chemicals and Functional Polymer Materials, Nanjing Tech University, No. 5 Xin Mofan Road, Nanjing 210009, P. R. China
| | - Su Chen
- State Key Laboratory of Materials-Oriented Chemical Engineering, College of Chemical Engineering, Jiangsu Key Laboratory of Fine Chemicals and Functional Polymer Materials, Nanjing Tech University, No. 5 Xin Mofan Road, Nanjing 210009, P. R. China
| | - Jie Pang
- College of Food Science, Fujian Agriculture and Forestry University, Fuzhou 350002, P. R. China
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11
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Jia Y, Shi J, Ding B, Zhao L, Xu K, Hu C, Xu W, Zhu A, Yang H, Wang X, Yao F. Photoactive Poly-L-Lysine gel with resveratrol-magnesium metal polyphenol network: A promising strategy for preventing tracheal anastomotic complications following surgery. Mater Today Bio 2024; 24:100938. [PMID: 38260033 PMCID: PMC10801330 DOI: 10.1016/j.mtbio.2023.100938] [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: 10/27/2023] [Revised: 12/19/2023] [Accepted: 12/28/2023] [Indexed: 01/24/2024] Open
Abstract
Postoperative complications at the anastomosis site following tracheal resection are a prevalent and substantial concern. However, most existing solutions primarily focus on managing symptoms, with limited attention given to proactively preventing the underlying pathological processes. To address this challenge, we conducted a drug screening focusing on clinically-relevant polyphenolic compounds, given the growing interest in polyphenolic compounds for their potential role in tissue repair during wound healing. This screening led to the identification of resveratrol as the most promising candidate for mitigating tracheal complications, as it exhibited the most significant efficacy in enhancing the expression of vascular endothelial growth factor (VEGF) while concurrently suppressing the pivotal fibrosis factor: transforming growth factor-beta 1 (TGF-β1), showcasing its robust potential in addressing these issues. Building upon this discovery, we further developed an innovative photosensitive poly-L-lysine gel integrated with a resveratrol-magnesium metal polyphenol network (MPN), named Res-Mg/PL-MA. This design allows for the enables sustained release of resveratrol and synergistically enhances the expression of VEGF and also promotes resistance to tensile forces, aided by magnesium ions, in an anastomotic tracheal fistula animal models. Moreover, the combination of resveratrol and poly-L-lysine hydrogel effectively inhibits bacteria, reduces local expression of key inflammatory factors, and induces polarization of macrophages toward an anti-inflammatory phenotype, as well as inhibits TGF-β1, consequently decreasing collagen production levels in an animal model of post-tracheal resection. In summary, our novel Res-Mg/PL-MA hydrogel, through antibacterial, anti-inflammatory, and pro-vascularization mechanisms, effectively prevents complications at tracheal anastomosis, offering significant promise for translational applications in patients undergoing tracheal surgeries.
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Affiliation(s)
- Yunxuan Jia
- Department of Thoracic Surgery, Shanghai Chest Hospital, Shanghai Jiao Tong University School of Medicine, Shanghai, 200030, China
| | - Jingfeng Shi
- Department of Respiratory and Critical Care Medicine, No.2 People's Hospital of Fuyang City, Fuyang Infectious Disease Clinical College of Anhui Medical University, Fuyang, 236015, China
| | - Bowen Ding
- Department of Pathology, Shanghai Chest Hospital, Shanghai Jiao Tong University School of Medicine, Shanghai, 200030, China
| | - Liang Zhao
- Department of Thoracic Surgery, Shanghai Chest Hospital, Shanghai Jiao Tong University School of Medicine, Shanghai, 200030, China
| | - Ke Xu
- Department of Thoracic Surgery, Shanghai Chest Hospital, Shanghai Jiao Tong University School of Medicine, Shanghai, 200030, China
| | - Chuang Hu
- Department of Thoracic Surgery, Shanghai Key Laboratory of Tissue Engineering, Shanghai Ninth People's Hospital, Shanghai Jiao Tong University School of Medicine, Shanghai, 200011, China
| | - Weijiao Xu
- Department of Thoracic Surgery, Shanghai Chest Hospital, Shanghai Jiao Tong University School of Medicine, Shanghai, 200030, China
| | - Anshun Zhu
- Wenzhou Medical University, Wenzhou, 325015, China
| | - Haitang Yang
- Department of Thoracic Surgery, Shanghai Chest Hospital, Shanghai Jiao Tong University School of Medicine, Shanghai, 200030, China
| | - Xiansong Wang
- Department of Thoracic Surgery, Shanghai Key Laboratory of Tissue Engineering, Shanghai Ninth People's Hospital, Shanghai Jiao Tong University School of Medicine, Shanghai, 200011, China
| | - Feng Yao
- Department of Thoracic Surgery, Shanghai Chest Hospital, Shanghai Jiao Tong University School of Medicine, Shanghai, 200030, China
- Wenzhou Medical University, Wenzhou, 325015, China
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12
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Huo S, Liu S, Liu Q, Xie E, Miao L, Meng X, Xu Z, Zhou C, Liu X, Xu G. Copper-Zinc-Doped Bilayer Bioactive Glasses Loaded Hydrogel with Spatiotemporal Immunomodulation Supports MRSA-Infected Wound Healing. ADVANCED SCIENCE (WEINHEIM, BADEN-WURTTEMBERG, GERMANY) 2024; 11:e2302674. [PMID: 38037309 PMCID: PMC10837387 DOI: 10.1002/advs.202302674] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 04/26/2023] [Revised: 08/29/2023] [Indexed: 12/02/2023]
Abstract
Developing biomaterials with antimicrobial and wound-healing activities for the treatment of wound infections remains challenging. Macrophages play non-negligible roles in healing infection-related wounds. In this study, a new sequential immunomodulatory approach is proposed to promote effective and rapid wound healing using a novel hybrid hydrogel dressing based on the immune characteristics of bacteria-associated wounds. The hydrogel dressing substrate is derived from a porcine dermal extracellular matrix (PADM) and loaded with a new class of bioactive glass nanoparticles (BGns) doped with copper (Cu) and zinc (Zn) ions (Cu-Zn BGns). This hybrid hydrogel demonstrates a controlled release of Cu2+ and Zn2+ and sequentially regulates the phenotypic transition of macrophages from M1 to M2 by alternately activating nucleotide-binding oligomerization domain (NOD) and inhibiting mitogen-activated protein kinases (MAPK) signaling pathways. Additionally, its dual-temporal bidirectional immunomodulatory function facilitates enhanced antibacterial activity and wound healing. Hence, this novel hydrogel is capable of safely and efficiently accelerating wound healing during infections. As such, the design strategy provides a new direction for exploring novel immunomodulatory biomaterials to address current clinical challenges related to the treatment of wound infections.
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Affiliation(s)
- Shicheng Huo
- Department of Orthopedic SurgerySpine CenterChangzheng HospitalNavy Medical UniversityShanghai200003China
| | - Shu Liu
- Department of Spine SurgeryChanghai HospitalNavy Military Medical University168 Changhai RoadShanghai200433China
| | - Qianqian Liu
- Department of Medical Record StatisticsSichuan Provincial People's HospitalUniversity of Electronic Science and Technology of ChinaChengduChina
| | - En Xie
- Key Laboratory for Ultrafine Materials of Ministry of EducationEast China University of Science and TechnologyShanghai200237China
| | - Licai Miao
- Department of Orthopedics TraumaShanghai Changhai HospitalNaval Medical UniversityShanghai200433China
| | - Xiangyu Meng
- Department of Orthopedics TraumaShanghai Changhai HospitalNaval Medical UniversityShanghai200433China
| | - Zihao Xu
- Department of Orthopedics TraumaShanghai Changhai HospitalNaval Medical UniversityShanghai200433China
| | - Chun Zhou
- Orthpaedic TraumaDepartment of OrthopedicsRenji HospitalSchool of MedicineShanghai Jiao Tong UniversityShanghaiChina
| | - Xuesong Liu
- Department of UltrasoundRenji HospitalSchool of MedicineShanghai Jiao Tong UniversityShanghaiChina
| | - Guohua Xu
- Department of Orthopedic SurgerySpine CenterChangzheng HospitalNavy Medical UniversityShanghai200003China
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13
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Yao W, Song Z, Ma X, Huang Y, Zhang X, Li Y, Wei P, Zhang J, Xiong C, Yang S, Xu Y, Jing W, Zhao B, Zhang X, Han Y. Asymmetric adhesive SIS-based wound dressings for therapeutically targeting wound repair. J Nanobiotechnology 2024; 22:34. [PMID: 38238748 PMCID: PMC10797997 DOI: 10.1186/s12951-024-02294-x] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/10/2023] [Accepted: 01/02/2024] [Indexed: 01/22/2024] Open
Abstract
Severe tissue injuries pose a significant risk to human health. Conventional wound dressings fall short in achieving effective tissue regeneration, resulting in suboptimal postoperative healing outcomes. In this study, an asymmetric adhesive wound dressing (marked as SIS/PAA/LAP) was developed, originating from acrylate acid (AA) solution with laponite (LAP) nanoparticles polymerization and photo-crosslinked on the decellularized extracellular matrix small intestinal submucosa (SIS) patch. Extensive studies demonstrated that the SIS/PAA/LAP exhibited higher tissue adhesion strength (~ 33 kPa) and burst strength (~ 22 kPa) compared to conventional wound dressings like Tegaderm and tissue adhesive products. Importantly, it maintained favorable cell viability and demonstrated robust angiogenic capacity. In animal models of full-thickness skin injuries in rats and skin injuries in Bama miniature pigs, the SIS/PAA/LAP could be precisely applied to wound sites. By accelerating the formation of tissue vascularization, it displayed superior tissue repair outcomes. This asymmetrically adhesive SIS-based patch would hold promising applications in the field of wound dressings.
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Affiliation(s)
- Wende Yao
- School of Medicine, Nankai University, Tianjin, 300071, China
- Department of Plastic and Reconstructive Surgery, The First Medical Centre, Chinese PLA General Hospital, Beijing, 100853, China
| | - Zelong Song
- School of Medicine, Nankai University, Tianjin, 300071, China
- Department of Orthopaedics, The Fourth Medical Centre, Chinese PLA General Hospital, Beijing, 100048, China
| | - Xiaodong Ma
- Department of Neurosurgery, The First Medical Centre, Chinese PLA General Hospital, Beijing, 100048, China
| | - Yiqian Huang
- Beijing Biosis Healing Biological Technology Co., Ltd, Beijing, 102600, China
| | - Xueying Zhang
- Beijing Biosis Healing Biological Technology Co., Ltd, Beijing, 102600, China
| | - Yunhuan Li
- Beijing Biosis Healing Biological Technology Co., Ltd, Beijing, 102600, China
| | - Pengfei Wei
- Beijing Biosis Healing Biological Technology Co., Ltd, Beijing, 102600, China
| | - Julei Zhang
- Department of Plastic and Reconstructive Surgery, The First Medical Centre, Chinese PLA General Hospital, Beijing, 100853, China
- Department of Burn and Plastic Surgery, The 980st Hospital of the PLA Joint Logistics Support Force, Hebei, China
| | - Chenlu Xiong
- School of Medicine, Nankai University, Tianjin, 300071, China
- Department of Plastic and Reconstructive Surgery, The First Medical Centre, Chinese PLA General Hospital, Beijing, 100853, China
| | - Sihan Yang
- School of Medicine, Nankai University, Tianjin, 300071, China
- Department of Plastic and Reconstructive Surgery, The First Medical Centre, Chinese PLA General Hospital, Beijing, 100853, China
| | - Yujian Xu
- Department of Plastic and Reconstructive Surgery, The First Medical Centre, Chinese PLA General Hospital, Beijing, 100853, China
| | - Wei Jing
- Beijing Biosis Healing Biological Technology Co., Ltd, Beijing, 102600, China
| | - Bo Zhao
- Beijing Biosis Healing Biological Technology Co., Ltd, Beijing, 102600, China.
| | - Xuesong Zhang
- School of Medicine, Nankai University, Tianjin, 300071, China.
- Department of Orthopaedics, The Fourth Medical Centre, Chinese PLA General Hospital, Beijing, 100048, China.
| | - Yan Han
- School of Medicine, Nankai University, Tianjin, 300071, China.
- Department of Plastic and Reconstructive Surgery, The First Medical Centre, Chinese PLA General Hospital, Beijing, 100853, China.
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14
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Nakipoglu M, Özkabadayı Y, Karahan S, Tezcaner A. Bilayer wound dressing composed of asymmetric polycaprolactone membrane and chitosan-carrageenan hydrogel incorporating storax balsam. Int J Biol Macromol 2024; 254:128020. [PMID: 37956814 DOI: 10.1016/j.ijbiomac.2023.128020] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/06/2023] [Revised: 11/08/2023] [Accepted: 11/09/2023] [Indexed: 11/15/2023]
Abstract
A comprehensive approach is needed to develop multifunctional wound dressing that is simple yet efficient. In this work, Liquidambar orientalis Mill. storax loaded hydroxyethyl chitosan (HECS)-carrageenan (kC) based hydrogel (HECS-kC) and polydopamine coated asymmetric polycaprolactone membrane (PCL-DOP) were used to develop a multifunctional and modular bilayer wound dressing. Asymmetric PCL-DOP membrane was prepared by non-solvent induced phase separation (NIPS) followed by polydopamine coating and demonstrated an excellent barrier against bacteria while allowing permeability for 5.45 ppm dissolved‑oxygen and 2130 g/m2 water vapor transmission in 24 h in addition to 805 kPa tensile strength. Storax loaded HECS-kC hydrogel, on the other hand, demonstrated a pH-responsive degradation and swelling to provide necessary conditions to facilitate wound healing. The hydrogels showed stretchability above 140 %, mild adhesive strength on sheep skin and PCL-DOP membrane, while the storax incorporation enhanced antibacterial and antioxidant activity. Furthermore, rat full-thickness skin defect model showed that the developed bilayer wound dressing could significantly facilitate wound healing compared to Tegaderm™ and control groups. This study shows that the bilayered wound dressing has the potential to be used as a simple and effective wound care system.
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Affiliation(s)
- Mustafa Nakipoglu
- Department of Biotechnology, Middle East Technical University, Ankara 06800, Turkey; Department of Molecular Biology and Genetics, Bartin University, Bartin 74100, Turkey.
| | - Yasin Özkabadayı
- Department of Histology, Kırıkkale University, Kırıkkale 71450, Turkey.
| | - Siyami Karahan
- Department of Histology, Kırıkkale University, Kırıkkale 71450, Turkey.
| | - Ayşen Tezcaner
- Department of Biotechnology, Middle East Technical University, Ankara 06800, Turkey; Department of Engineering Sciences, Middle East Technical University, Ankara 06800, Turkey.
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15
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Zhou F, Sun S, Cui C, Li X, Wu S, Ma J, Chen S, Li CM. Zinc ions and ciprofloxacin-encapsulated chitosan/poly(ɛ-caprolactone) composite nanofibers promote wound healing via enhanced antibacterial and immunomodulatory. Int J Biol Macromol 2023; 253:127086. [PMID: 37769775 DOI: 10.1016/j.ijbiomac.2023.127086] [Citation(s) in RCA: 8] [Impact Index Per Article: 8.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/22/2023] [Revised: 09/18/2023] [Accepted: 09/24/2023] [Indexed: 10/01/2023]
Abstract
Antibacterial and anti-inflammatory nanofibrous membranes have attracted extensive attention, especially for the cutaneous wound treatment. In this study, zinc ions and ciprofloxacin-encapsulated chitosan/poly(ɛ-caprolactone) (CS/PCL) electrospun core-shell nanofibers were prepared by employing zinc ions-coordinated chitosan as the shell, and ciprofloxacin-functionalized PCL as the core. The morphology and core-shell structure of the as-prepared composite nanofibers were examined by SEM and TEM, respectively. The physical structure and mechanical property of the electrospun membrane were explored by FTIR, swelling, porosity and tensile test. Tensile strength of the zinc ions-coordinated CS/PCL composite nanofibers was enhanced to ca. 16 MPa. Meanwhile, the composite nanofibers can rapidly release of ciprofloxacin during 11 days and effectively suppress above 98 % of S. aureus proliferation. Moreover, the composite nanofibers exhibited excellent guide cell alignment and cyto-activity, as well as significantly down-regulated the inflammation factors, IL-6 and TNF-α in vitro. Animal experiments in vivo showed that the zinc ions-coordinated CS/PCL membrane by means of the synergistic effect of ciprofloxacin and active zinc ions, could significantly alleviate macrophage infiltration, promote collagen deposition and accelerate the healing process of wounds.
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Affiliation(s)
- Fang Zhou
- College of Textiles and Clothing, Qingdao University, Qingdao 266061, China.
| | - Shibin Sun
- College of Textiles and Clothing, Qingdao University, Qingdao 266061, China
| | - Congjing Cui
- College of Textiles and Clothing, Qingdao University, Qingdao 266061, China
| | - Xueyan Li
- College of Textiles and Clothing, Qingdao University, Qingdao 266061, China
| | - Shaohua Wu
- College of Textiles and Clothing, Qingdao University, Qingdao 266061, China
| | - Jianwei Ma
- College of Textiles and Clothing, Qingdao University, Qingdao 266061, China
| | - Shaojuan Chen
- College of Textiles and Clothing, Qingdao University, Qingdao 266061, China.
| | - Chang Ming Li
- Institute of Advanced Cross-field Science, College of Life Science, Qingdao University, Shandong 266071, China; Institute of Material Science and Devices, School of Material Science and Engineering, Suzhou University of Science and Technology, Suzhou 215009, China
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16
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Lu B, Zhang J, Zhu G, Liu T, Chen J, Liang X. Highly hydrophilic and dispersed TiO 2 nano-system with enhanced photocatalytic antibacterial activities and accelerated tissue regeneration under visible light. J Nanobiotechnology 2023; 21:491. [PMID: 38115054 PMCID: PMC10731761 DOI: 10.1186/s12951-023-02241-2] [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: 09/26/2023] [Accepted: 12/03/2023] [Indexed: 12/21/2023] Open
Abstract
Titanium dioxide (TiO2)-based photodynamic antibacterial (PDA) agents present a novel approach for addressing drug-resistant bacterial infections and the associated tissue damage. However, the suboptimal dispersibility, negative charge, and weak photocatalytic activity under visible light of TiO2 hinder its practical applications. This study aimed to address these limitations by developing a highly hydrophilic and dispersed Zn-TiO2/reduced graphene oxide (rGO) (HTGZ) nano-system with exceptional visible light catalytic activity and tissue repair ability. HTGZ produced an antibacterial ratio over 98% within a short time, likely due to the enhanced production of reactive oxygen species under visible light. After being co-cultured for 4 days, L929 cells and BMSCs maintained over 90% activity, indicating that HTGZ had no significant cytotoxicity. Furthermore, the transcriptomic and metabolic analyses revealed that the antibacterial mechanism mainly came from the destruction of cell membranes and the disruption of various metabolic processes, such as purine metabolism and fatty acid biosynthesis. Critically, results of in vivo experiments had authenticated that HTGZ significantly promoted infected tissue regeneration by slaughtering bacteria and release Zn2+. After 14 days, the wound area was only one-third that of the control group. Overall, the enhanced antibacterial efficacy and wound-healing potential position HTGZ as a promising nano-antibacterial medication for the clinical treatment of infectious bacterial diseases.
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Affiliation(s)
- Boyao Lu
- State Key Laboratory of Oral Diseases & National Center for Stomatology & National Clinical Research Center for Oral Diseases, Department of Prosthodontics II of West China Hospital of Stomatology, Sichuan University, Chengdu, 610041, Sichuan, China
| | - Jie Zhang
- College of Materials Science and Engineering, Sichuan University, Chengdu, 610065, China
| | - Guixin Zhu
- State Key Laboratory of Oral Diseases & National Center for Stomatology & National Clinical Research Center for Oral Diseases, Department of Prosthodontics II of West China Hospital of Stomatology, Sichuan University, Chengdu, 610041, Sichuan, China
| | - Tiqian Liu
- State Key Laboratory of Oral Diseases & National Center for Stomatology & National Clinical Research Center for Oral Diseases, Department of Prosthodontics II of West China Hospital of Stomatology, Sichuan University, Chengdu, 610041, Sichuan, China
| | - Jinwei Chen
- College of Materials Science and Engineering, Sichuan University, Chengdu, 610065, China.
- Engineering Research Center of Alternative Energy Materials & Devices, Ministry of Education, Sichuan University, Chengdu, 610065, China.
| | - Xing Liang
- State Key Laboratory of Oral Diseases & National Center for Stomatology & National Clinical Research Center for Oral Diseases, Department of Prosthodontics II of West China Hospital of Stomatology, Sichuan University, Chengdu, 610041, Sichuan, China.
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17
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Tang X, Li L, You G, Li X, Kang J. Metallic elements combine with herbal compounds upload in microneedles to promote wound healing: a review. Front Bioeng Biotechnol 2023; 11:1283771. [PMID: 38026844 PMCID: PMC10655017 DOI: 10.3389/fbioe.2023.1283771] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/27/2023] [Accepted: 10/23/2023] [Indexed: 12/01/2023] Open
Abstract
Wound healing is a dynamic and complex restorative process, and traditional dressings reduce their therapeutic effectiveness due to the accumulation of drugs in the cuticle. As a novel drug delivery system, microneedles (MNs) can overcome the defect and deliver drugs to the deeper layers of the skin. As the core of the microneedle system, loaded drugs exert a significant influence on the therapeutic efficacy of MNs. Metallic elements and herbal compounds have been widely used in wound treatment for their ability to accelerate the healing process. Metallic elements primarily serve as antimicrobial agents and facilitate the enhancement of cell proliferation. Whereas various herbal compounds act on different targets in the inflammatory, proliferative, and remodeling phases of wound healing. The interaction between the two drugs forms nanoparticles (NPs) and metal-organic frameworks (MOFs), reducing the toxicity of the metallic elements and increasing the therapeutic effect. This article summarizes recent trends in the development of MNs made of metallic elements and herbal compounds for wound healing, describes their advantages in wound treatment, and provides a reference for the development of future MNs.
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Affiliation(s)
- Xiao Tang
- Department of Proctology, Hospital of Chengdu University of Traditional Chinese Medicine, Chengdu, Sichuan, China
- School of Clinical Medicine, Chengdu University of Traditional Chinese Medicine, Chengdu, Sichuan, China
| | - Li Li
- Department of Proctology, Hospital of Chengdu University of Traditional Chinese Medicine, Chengdu, Sichuan, China
- School of Clinical Medicine, Chengdu University of Traditional Chinese Medicine, Chengdu, Sichuan, China
| | - Gehang You
- School of Clinical Medicine, Chengdu University of Traditional Chinese Medicine, Chengdu, Sichuan, China
| | - Xinyi Li
- Department of Proctology, Hospital of Chengdu University of Traditional Chinese Medicine, Chengdu, Sichuan, China
- School of Clinical Medicine, Chengdu University of Traditional Chinese Medicine, Chengdu, Sichuan, China
| | - Jian Kang
- Department of Proctology, Hospital of Chengdu University of Traditional Chinese Medicine, Chengdu, Sichuan, China
- School of Clinical Medicine, Chengdu University of Traditional Chinese Medicine, Chengdu, Sichuan, China
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18
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Liu W, Zhang K, Nan J, Lei P, Sun Y, Hu Y. Nano artificial periosteum PCL/Ta/ZnO accelerates repair of periosteum via antibacterial, promoting vascularization and osteogenesis. BIOMATERIALS ADVANCES 2023; 154:213624. [PMID: 37716333 DOI: 10.1016/j.bioadv.2023.213624] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 06/05/2023] [Revised: 08/31/2023] [Accepted: 09/09/2023] [Indexed: 09/18/2023]
Abstract
The periosteum plays a critical role in bone development, shaping, remodeling, and fracture healing due to its abundance of osteoprogenitor cells, osteoblasts, and capillary network. However, the role of periosteum in bone injury healing has been underestimated, thus there is an urgent need to develop a multifunctional artificial periosteum that mimics the natural one. To tackle this issue, electrospinning technology was employed to fabricate an artificial periosteum composed of Poly-ε-caprolactone (PCL) doped with tantalum (Ta) and zinc oxide (ZnO) nanoparticles to enhance its antibacterial, osteogenic, and angiogenic properties. The in vitro cell experiments have demonstrated that the PCL/Ta/ZnO artificial periosteum exhibits excellent biocompatibility and can effectively facilitate osteogenic differentiation of BMSCs as well as angiogenic differentiation of EPCs. Antibacterial experiments have demonstrated the excellent bactericidal effects of PCL/Ta/ZnO artificial periosteum against both S. aureus and E. coli. The subcutaneous infection and critical-sized skull bone defect models have validated its in vivo properties of antibacterial activity, promotion of osteogenesis, and angiogenic potential. The PCL/Ta/ZnO artificial periosteum demonstrates remarkable efficacy in infection control and favorable immunomodulation, thereby achieving rapid vascularized bone repair. In conclusion, the utilization of PCL/Ta/ZnO tissue-engineered periosteum has been demonstrated to exhibit antibacterial properties, pro-vascularization effects, and promotion of osteogenesis at the site of bone defects. This promising approach could potentially offer effective treatment for bone defects.
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Affiliation(s)
- Wenbin Liu
- Department of Orthopaedics, The Third Xiangya Hospital, Central South University, 138 Tongzipo Road, Changsha 410008, China
| | - Kai Zhang
- Department of Orthopedic Surgery, National Clinical Research Center for Geriatric Disorders, Xiangya Hospital, Central South University, Changsha, China
| | - Jiangyu Nan
- Department of Orthopedic Surgery, National Clinical Research Center for Geriatric Disorders, Xiangya Hospital, Central South University, Changsha, China
| | - Pengfei Lei
- Department of Orthopedics, The First Affiliated Hospital, Medical College of Zhejiang University, Hangzhou, China; Hunan Engineering Research Center of Biomedical Metal and Ceramic Implants, Changsha, China.
| | - Yan Sun
- Department of Orthopedics, The First Affiliated Hospital, Medical College of Zhejiang University, Hangzhou, China; Hunan Engineering Research Center of Biomedical Metal and Ceramic Implants, Changsha, China.
| | - Yihe Hu
- Department of Orthopedics, The First Affiliated Hospital, Medical College of Zhejiang University, Hangzhou, China; Hunan Engineering Research Center of Biomedical Metal and Ceramic Implants, Changsha, China.
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19
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Ju Y, Zeng H, Ye X, Dai M, Fang B, Liu L. Zn 2+ incorporated composite polysaccharide microspheres for sustained growth factor release and wound healing. Mater Today Bio 2023; 22:100739. [PMID: 37521525 PMCID: PMC10374596 DOI: 10.1016/j.mtbio.2023.100739] [Citation(s) in RCA: 3] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/08/2023] [Revised: 06/17/2023] [Accepted: 07/19/2023] [Indexed: 08/01/2023] Open
Abstract
The development of new wound dressings has always been an issue of great clinical importance and research promise. In this study, we designed a novel double cross-linked polysaccharide hydrogel microspheres based on alginate (ALG) and hyaluronic acid methacrylate (HAMA) from gas-assisted microfluidics for wound healing. The microspheres from gas-assisted microfluidics showed an uniform size and good microsphere morphology. Moreover, this composite polysaccharide hydrogel microspheres were constructed by harnessing the fact that zinc ions (Zn2+) can cross-link with ALG as well as histidine-tagged vascular endothelial growth (His-VEGF) to achieve long-term His-VEGF release, thus promoting angiogenesis and wound healing. Meanwhile, Zn2+, as an important trace element, can exert antibacterial and anti-inflammatory effects, reshaping the trauma microenvironment. In addition, photo cross-linked HAMA was introduced into the microspheres to further improve its mechanical properties and drug release ability. In summary, this novel Zn2+ composite polysaccharide hydrogel microspheres loaded with His-VEGF based on a dual cross-linked strategy exhibited synergistic antimicrobial and angiogenic effects in promoting wound healing.
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Affiliation(s)
- Yikun Ju
- The Third Affiliated Hospital of Wenzhou Medical University, Wenzhou, 325200, China
- Department of Plastic and Aesthetic (Burn) Surgery, The Second Xiangya Hospital, Central South University, Changsha, 410011, China
| | - Huanxuan Zeng
- The Third Affiliated Hospital of Wenzhou Medical University, Wenzhou, 325200, China
| | - Xiuzhi Ye
- The Third Affiliated Hospital of Wenzhou Medical University, Wenzhou, 325200, China
| | - Minghai Dai
- The Third Affiliated Hospital of Wenzhou Medical University, Wenzhou, 325200, China
| | - Bairong Fang
- Department of Plastic and Aesthetic (Burn) Surgery, The Second Xiangya Hospital, Central South University, Changsha, 410011, China
| | - Liangle Liu
- The Third Affiliated Hospital of Wenzhou Medical University, Wenzhou, 325200, China
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20
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Ding Z, Cheng W, Liu L, Xu G, Lu Q, Kaplan DL. Nanosized Silk-Magnesium Complexes for Tissue Regeneration. Adv Healthc Mater 2023; 12:e2300887. [PMID: 37317936 DOI: 10.1002/adhm.202300887] [Citation(s) in RCA: 4] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/19/2023] [Revised: 06/12/2023] [Indexed: 06/16/2023]
Abstract
Metal ions provide multifunctional signals for cell and tissue functions, including regeneration. Inspired by metal-organic frameworks (MOFs), nanosized silk protein aggregates with a high negative charge density are used to form stable silk-magnesium ion complexes. Magnesium ions (Mg ions) are added directly to silk nanoparticle solutions, inducing gelation through the formation of silk-Mg coordination complexes. The Mg ions are released slowly from the nanoparticles through diffusion, with sustained release via tuning the degradation or dissolution of the nanosized silk aggregates. Studies in vitro reveal a dose-dependent influence of Mg ions on angiogenic and anti-inflammatory functions. Silk-Mg ion complexes in the form of hydrogels also stimulate tissue regeneration with a reduced formation of scar tissue in vivo, suggesting potential utility in tissue regeneration.
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Affiliation(s)
- Zhaozhao Ding
- State Key Laboratory of Radiation Medicine and Radiation Protection, Institutes for Translational Medicine, Soochow University, Suzhou, 215123, P. R. China
- National Engineering Laboratory for Modern Silk & Collaborative Innovation Center of Suzhou Nano Science and Technology, Soochow University, Suzhou, 215123, P. R. China
| | - Weinan Cheng
- Department of Orthopaedics, Shanghai Jiao Tong University Affiliated Shanghai Sixth People's Hospital, Shanghai, 200233, P. R. China
- Department of Orthopedics, the First Affiliated Hospital of Xiamen University, School of Medicine, Xiamen University, Xiamen, 361000, P. R. China
| | - Lutong Liu
- National Engineering Laboratory for Modern Silk & Collaborative Innovation Center of Suzhou Nano Science and Technology, Soochow University, Suzhou, 215123, P. R. China
| | - Gang Xu
- Department of Orthopedics, The Affiliated Hospital of Xuzhou Medical University, Lianyungang, 222061, P. R. China
| | - Qiang Lu
- State Key Laboratory of Radiation Medicine and Radiation Protection, Institutes for Translational Medicine, Soochow University, Suzhou, 215123, P. R. China
| | - David L Kaplan
- Department of Biomedical Engineering, Tufts University, Medford, MA, 02155, USA
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