551
|
Zhou K, Tian R, Li G, Qiu X, Xu L, Guo M, Chigan D, Zhang Y, Chen X, He G. Cationic Chalcogenoviologen Derivatives for Photodynamic Antimicrobial Therapy and Skin Regeneration. Chemistry 2019; 25:13472-13478. [DOI: 10.1002/chem.201903278] [Citation(s) in RCA: 19] [Impact Index Per Article: 3.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/18/2019] [Indexed: 01/01/2023]
Affiliation(s)
- Kun Zhou
- Frontier Institute of Science and TechnologyState Key Laboratory for Strength and Vibration of Mechanical StructuresXi'an Key Laboratory of Sustainable Energy Materials ChemistryXi'an Jiaotong University Xi'an Shaanxi Province 710054 China
| | - Ran Tian
- School of Chemical Engineering and TechnologyShaanxi Key Laboratory of Energy Chemical Process IntensificationInstitute of Polymer Science in Chemical EngineeringXi'an Jiaotong University Xi'an Shaanxi Province 710054 China
| | - Guoping Li
- Frontier Institute of Science and TechnologyState Key Laboratory for Strength and Vibration of Mechanical StructuresXi'an Key Laboratory of Sustainable Energy Materials ChemistryXi'an Jiaotong University Xi'an Shaanxi Province 710054 China
| | - Xinyu Qiu
- Center for Tissue Engineering, School of StomatologyFourth Military Medical University Xi'an Shaanxi Province 710032 China
| | - Letian Xu
- Frontier Institute of Science and TechnologyState Key Laboratory for Strength and Vibration of Mechanical StructuresXi'an Key Laboratory of Sustainable Energy Materials ChemistryXi'an Jiaotong University Xi'an Shaanxi Province 710054 China
| | - Mengying Guo
- Frontier Institute of Science and TechnologyState Key Laboratory for Strength and Vibration of Mechanical StructuresXi'an Key Laboratory of Sustainable Energy Materials ChemistryXi'an Jiaotong University Xi'an Shaanxi Province 710054 China
| | - Dongdong Chigan
- Frontier Institute of Science and TechnologyState Key Laboratory for Strength and Vibration of Mechanical StructuresXi'an Key Laboratory of Sustainable Energy Materials ChemistryXi'an Jiaotong University Xi'an Shaanxi Province 710054 China
| | - Yanfeng Zhang
- Frontier Institute of Science and TechnologyState Key Laboratory for Strength and Vibration of Mechanical StructuresXi'an Key Laboratory of Sustainable Energy Materials ChemistryXi'an Jiaotong University Xi'an Shaanxi Province 710054 China
| | - Xin Chen
- School of Chemical Engineering and TechnologyShaanxi Key Laboratory of Energy Chemical Process IntensificationInstitute of Polymer Science in Chemical EngineeringXi'an Jiaotong University Xi'an Shaanxi Province 710054 China
| | - Gang He
- Frontier Institute of Science and TechnologyState Key Laboratory for Strength and Vibration of Mechanical StructuresXi'an Key Laboratory of Sustainable Energy Materials ChemistryXi'an Jiaotong University Xi'an Shaanxi Province 710054 China
| |
Collapse
|
552
|
Lin Z, Wu T, Wang W, Li B, Wang M, Chen L, Xia H, Zhang T. Biofunctions of antimicrobial peptide-conjugated alginate/hyaluronic acid/collagen wound dressings promote wound healing of a mixed-bacteria-infected wound. Int J Biol Macromol 2019; 140:330-342. [PMID: 31421174 DOI: 10.1016/j.ijbiomac.2019.08.087] [Citation(s) in RCA: 103] [Impact Index Per Article: 20.6] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/12/2019] [Revised: 08/01/2019] [Accepted: 08/09/2019] [Indexed: 12/22/2022]
Abstract
The increase in severe infections caused by antibiotic drug resistance and the decrease in the number of new antibacterial drugs approved for use in the last few decades are driving the need for the development of new antimicrobial strategies. Antimicrobial peptides (AMPs) are a potential new class of antimicrobial drugs that are expected to solve the problem of global antibiotic drug resistance. Herein, the AMP Tet213 was immobilised onto the substrates of alginate (ALG), hyaluronic acid (HA), and collagen (COL) to form the ALG/HA/COL-AMP wound dressing. This wound dressing exhibited a high degree of swelling and the appropriate porosity, mechanical properties, and biodegradability. The Tet213-immobilised ALG/HA/COL dressings exhibited antimicrobial activity against three pathogenic bacterial strains (Gram-negative E. coli and Gram-positive MRSA and S. aureus) and facilitated the proliferation of NIH 3T3 fibroblast cells. In addition, the ALG/HA/COL-AMP antimicrobial dressings promoted wound healing, re-epithelialisation, collagen deposition, and angiogenesis. Moreover, the wound-healing effects of ALG/HA/COL-AMP surpassed the gauze and ALG/HA/COL compared to commercially available silver-based dressings (Aguacel Ag). These results suggest that the Tet213-conjugated ALG/HA/COL wound dressing, with its multiple biological activities, is a promising wound-dressing material.
Collapse
Affiliation(s)
- Zefeng Lin
- Department of Orthopedics, General Hospital of Southern Theater Command of PLA, Guangzhou 510010, China; Guangdong Key Lab of Orthopedic Technology and Implant Materials, Guangzhou 510010, China
| | - Tingting Wu
- Institute of Orthopedic Diseases and Center for Joint Surgery and Sports Medicine, the First Affiliated Hospital, Jinan University, Guangzhou 510632, China
| | - Wanshun Wang
- Guangzhou University of Chinese Medicine, Guangzhou 510010, China
| | - Binglin Li
- The First School of Clinical Medicine, Southern Medical University, 510515, China
| | - Ming Wang
- The First School of Clinical Medicine, Southern Medical University, 510515, China
| | - Lingling Chen
- Department of Orthopedics, General Hospital of Southern Theater Command of PLA, Guangzhou 510010, China; The First School of Clinical Medicine, Southern Medical University, 510515, China
| | - Hong Xia
- Department of Orthopedics, General Hospital of Southern Theater Command of PLA, Guangzhou 510010, China; Guangdong Key Lab of Orthopedic Technology and Implant Materials, Guangzhou 510010, China.
| | - Tao Zhang
- Department of Orthopedics, General Hospital of Southern Theater Command of PLA, Guangzhou 510010, China; Guangdong Key Lab of Orthopedic Technology and Implant Materials, Guangzhou 510010, China.
| |
Collapse
|
553
|
Li J, Zhou C, Luo C, Qian B, Liu S, Zeng Y, Hou J, Deng B, Sun Y, Yang J, Yuan Q, Zhong A, Wang J, Sun J, Wang Z. N-acetyl cysteine-loaded graphene oxide-collagen hybrid membrane for scarless wound healing. Theranostics 2019; 9:5839-5853. [PMID: 31534523 PMCID: PMC6735368 DOI: 10.7150/thno.34480] [Citation(s) in RCA: 65] [Impact Index Per Article: 13.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/27/2019] [Accepted: 06/18/2019] [Indexed: 12/22/2022] Open
Abstract
Wound dressings composed of natural polymers, such as type I collagen, possess good biocompatibility, water holding capacity, air permeability, and degradability, and can be used in wound repair. However, due to the persistent oxidative stress in the wound area, the migration and proliferation of fibroblasts might be suppressed, leading to poor healing. Thus, collagen-containing scaffolds are not suitable for accelerated wound healing. Antioxidant N-acetyl cysteine (NAC) is known to reduce the reactive oxygen species (ROS) and has been widely used in the clinic. Theoretically, the carboxyl group of NAC allows loading of graphene oxide (GO) for sustained release and may also enhance the mechanical properties of the collagen scaffold, making it a better wound-dressing material. Herein, we demonstrated an innovative approach for a potential skin-regenerating hybrid membrane using GO incorporated with collagen I and NAC (N-Col-GO) capable of continuously releasing antioxidant NAC. Methods: The mechanical stability, water holding capacity, and biocompatibility of the N-Col-GO hybrid membrane were measured in vitro. A 20 mm rat full-skin defect model was created to evaluate the repair efficiency of the N-Col-GO hybrid membrane. The vascularization and scar-related genes in the wound area were also examined. Results: Compared to the Col only scaffold, N-Col-GO hybrid membrane exhibited a better mechanical property, stronger water retention capacity, and slower NAC release ability, which likely promote fibroblast migration and proliferation. Treatment with the N-Col-GO hybrid membrane in the rat wound model showed complete healing 14 days after application which was 22% faster than the control group. HE and Masson staining confirmed faster collagen deposition and better epithelization, while CD31 staining revealed a noticeable increase of vascularization. Furthermore, Rt-PCR demonstrated decreased mRNA expression of profibrotic and overexpression of anti-fibrotic factors indicative of the anti-scar effect. Conclusion: These findings suggest that N-Col-GO drug release hybrid membrane serves as a better platform for scarless skin regeneration.
Collapse
Affiliation(s)
- Jialun Li
- Department of Plastic Surgery, Union Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan 430022, China
| | - Chuchao Zhou
- Department of Plastic Surgery, Union Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan 430022, China
| | - Chao Luo
- Department of Plastic Surgery, Union Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan 430022, China
| | - Bei Qian
- Department of Plastic Surgery, Union Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan 430022, China
| | - Shaokai Liu
- Department of Plastic Surgery, Union Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan 430022, China
| | - Yuyang Zeng
- Department of Plastic Surgery, Union Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan 430022, China
| | - Jinfei Hou
- Department of Plastic Surgery, Union Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan 430022, China
| | - Bin Deng
- Department of Pharmacy, Union Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan,430022, China
| | - Yang Sun
- Department of Medical Records Management and Statistics, Union Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan 430022, China
| | - Jie Yang
- Department of Plastic Surgery, Union Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan 430022, China
| | - Quan Yuan
- Department of Plastic Surgery, Union Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan 430022, China
| | - Aimei Zhong
- Department of Plastic Surgery, Union Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan 430022, China
| | - Jiecong Wang
- Department of Plastic Surgery, Union Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan 430022, China
| | - Jiaming Sun
- Department of Plastic Surgery, Union Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan 430022, China
| | - Zhenxing Wang
- Department of Plastic Surgery, Union Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan 430022, China
| |
Collapse
|
554
|
Oves M, Rauf MA, Hussain A, Qari HA, Khan AAP, Muhammad P, Rehman MT, Alajmi MF, Ismail IIM. Antibacterial Silver Nanomaterial Synthesis From Mesoflavibacter zeaxanthinifaciens and Targeting Biofilm Formation. Front Pharmacol 2019; 10:801. [PMID: 31427961 PMCID: PMC6688106 DOI: 10.3389/fphar.2019.00801] [Citation(s) in RCA: 28] [Impact Index Per Article: 5.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/17/2018] [Accepted: 06/21/2019] [Indexed: 11/13/2022] Open
Abstract
Considering the significance of biological and eco-friendly nanomaterials, in the present study, we have synthesized silver nanoparticles from the exopolysaccharide of recently recovered bacterial strain CEES51 from the Red Sea coastal area of Jeddah, Saudi Arabia. 16S ribosomal RNA gene sequencing was used to characterize the isolated bacteria, and it was identified as Mesoflavibacter zeaxanthinifaciens and assigned an accession number MH707257.1 GenBank. The bacterial strain is an excellent exopolysaccharide producer and survived at hypersaline (30%) and high-temperature (50°C) conditions. The bacterial exopolysaccharides were employed for the fabrication of silver nanoparticles at room temperature. UV-visible spectrophotometer optimized the synthesized nanoparticles, and their size was determined by Nanophox particle size analyzer and dynamic light scattering. Additionally, the X-ray powder diffraction and Fourier-transform infrared spectroscopy studies also approved its crystalline nature and the involvement of organic functional groups in their formation. The synthesized nanomaterials were tested for their antibacterial and antibiofilm properties against pathogenic microorganisms Bacillus subtilis and methicillin-resistant Staphylococcus aureus. The antimicrobial property showed time, and dose-dependent response with a maximum of zone inhibition was observed at around 22 and 18 mm at a dose of 50 µg/well against B. subtilis and S. aureus and a minimum inhibitory concentration of 8 and 10 µg/ml, respectively. Furthermore, the synthesized silver nanoparticles possessed a substantial antibiofilm property and were also found to be biocompatible as depicted by red blood cell lysis assay and their interaction with peripheral blood mononuclear cells and human embryonic kidney 293 cells. Therefore, Mesoflavibacter zeaxanthinifaciens is found to be an excellent source for exopolysaccharide synthesis that assists in the silver nanoparticle production.
Collapse
Affiliation(s)
- Mohammad Oves
- Center of Excellence in Environmental Studies, King Abdulaziz University, Jeddah, Saudi Arabia.,Department of Biological Science, King Abdulaziz University, Jeddah, Saudi Arabia
| | - Mohd Ahmar Rauf
- International Joint Centre for Biomedical Innovation, Henan University, Kaifeng, China
| | - Afzal Hussain
- Department of Phamocognosy, College of Pharmacy, King Saud University, Riyadh, Saudi Arabia
| | - Huda A Qari
- Center of Excellence in Environmental Studies, King Abdulaziz University, Jeddah, Saudi Arabia.,Department of Biological Science, King Abdulaziz University, Jeddah, Saudi Arabia
| | | | - Pir Muhammad
- International Joint Centre for Biomedical Innovation, Henan University, Kaifeng, China
| | - Md Tabish Rehman
- Department of Phamocognosy, College of Pharmacy, King Saud University, Riyadh, Saudi Arabia
| | - Mohammad Fahad Alajmi
- Department of Phamocognosy, College of Pharmacy, King Saud University, Riyadh, Saudi Arabia
| | - Iqbal I M Ismail
- Center of Excellence in Environmental Studies, King Abdulaziz University, Jeddah, Saudi Arabia.,Department of Chemistry, King Abdulaziz, University, Jeddah, Saudi Arabia
| |
Collapse
|
555
|
Zhu J, Sun Y, Sun W, Meng Z, Shi Q, Zhu X, Gan H, Gu R, Wu Z, Dou G. Calcium ion–exchange cross-linked porous starch microparticles with improved hemostatic properties. Int J Biol Macromol 2019; 134:435-444. [DOI: 10.1016/j.ijbiomac.2019.05.086] [Citation(s) in RCA: 14] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/27/2019] [Revised: 05/09/2019] [Accepted: 05/13/2019] [Indexed: 12/15/2022]
|
556
|
Bagher Z, Atoufi Z, Alizadeh R, Farhadi M, Zarrintaj P, Moroni L, Setayeshmehr M, Komeili A, Kamrava SK. Conductive hydrogel based on chitosan-aniline pentamer/gelatin/agarose significantly promoted motor neuron-like cells differentiation of human olfactory ecto-mesenchymal stem cells. MATERIALS SCIENCE & ENGINEERING. C, MATERIALS FOR BIOLOGICAL APPLICATIONS 2019; 101:243-253. [DOI: 10.1016/j.msec.2019.03.068] [Citation(s) in RCA: 56] [Impact Index Per Article: 11.2] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Received: 07/11/2018] [Revised: 03/18/2019] [Accepted: 03/21/2019] [Indexed: 01/26/2023]
|
557
|
A natural cordycepin/chitosan complex hydrogel with outstanding self-healable and wound healing properties. Int J Biol Macromol 2019; 134:91-99. [DOI: 10.1016/j.ijbiomac.2019.04.195] [Citation(s) in RCA: 44] [Impact Index Per Article: 8.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/22/2019] [Revised: 04/22/2019] [Accepted: 04/30/2019] [Indexed: 12/17/2022]
|
558
|
Liang Y, Xu C, Liu F, Du S, Li G, Wang X. Eliminating Heat Injury of Zeolite in Hemostasis via Thermal Conductivity of Graphene Sponge. ACS APPLIED MATERIALS & INTERFACES 2019; 11:23848-23857. [PMID: 31245992 DOI: 10.1021/acsami.9b04956] [Citation(s) in RCA: 37] [Impact Index Per Article: 7.4] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/09/2023]
Abstract
Thermal release of zeolite is conducive in hemostasis, but losing control will cause serious burns. How to balance the advantages and disadvantages is a challenge. Herein, a zeolite/cross-linked graphene sponge (Z-CGS) was design to break through this challenge. The CGS managed the heat release of zeolite by thermal conduction of graphene. Infrared thermal imager demonstrated the mild exothermic process and good thermal conductivity of the optimized Z-CGS. It controlled wound temperature below 42 °C effectively, as compared to 70 °C of naked zeolite. Blood clotting index further confirmed the contribution of thermal stimulation in Z-CGS. On the synergy of thermal and charge stimulations of zeolite, as well as physical adsorption of CGS, Z-CGS achieved outstanding hemostatic performance. Bleeding was stopped within 69 s in rat artery injury model, faster than that of the Quikclot Combat Gauze. Additionally, cytotoxicity assay and pathological analysis highlighted its biocompatibility. Z-CGS, therefore, was an outstanding composite of combining advantages of zeolite and graphene, while getting rid of the shortcomings of the basic unit. The thermal conductibility of graphene renews an avenue for the safe and highly efficient use of zeolite in hemostasis.
Collapse
Affiliation(s)
- Yuping Liang
- Beijing Laboratory of Biomedical Materials , Beijing University of Chemical Technology , Beijing 100029 , P. R. China
| | - Congcong Xu
- Beijing Laboratory of Biomedical Materials , Beijing University of Chemical Technology , Beijing 100029 , P. R. China
| | - Fang Liu
- Department of Gastroenterology , China-Japan Friendship Hospital , Beijing 100029 , P. R. China
| | - Shiyu Du
- Department of Gastroenterology , China-Japan Friendship Hospital , Beijing 100029 , P. R. China
| | - Guofeng Li
- Beijing Laboratory of Biomedical Materials , Beijing University of Chemical Technology , Beijing 100029 , P. R. China
- Key Laboratory of Biomedical Materials of Natural Macromolecules , Beijing University of Chemical Technology, Ministry of Education , Beijing 100029 , P. R. China
| | - Xing Wang
- Beijing Laboratory of Biomedical Materials , Beijing University of Chemical Technology , Beijing 100029 , P. R. China
- Key Laboratory of Biomedical Materials of Natural Macromolecules , Beijing University of Chemical Technology, Ministry of Education , Beijing 100029 , P. R. China
| |
Collapse
|
559
|
Bu Y, Zhang L, Sun G, Sun F, Liu J, Yang F, Tang P, Wu D. Tetra-PEG Based Hydrogel Sealants for In Vivo Visceral Hemostasis. ADVANCED MATERIALS (DEERFIELD BEACH, FLA.) 2019; 31:e1901580. [PMID: 31106912 DOI: 10.1002/adma.201901580] [Citation(s) in RCA: 150] [Impact Index Per Article: 30.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 03/11/2019] [Revised: 04/24/2019] [Indexed: 05/14/2023]
Abstract
Medical sealant devices for in vivo hemostasis are far from satisfactory in the aged society. A major challenge is effective integration of quick hemorrhage control of the increased anticoagulated patients, high safety, and facile accessibility. Here, a well-defined ammonolysis-based Tetra-PEG hydrogel sealant is developed with rapid gelation speed, strong tissue adhesion, and high mechanical strength. Introduction of cyclized succinyl ester groups into a hydrogel matrix endows the sealant with fast degradable and controllably dissolvable properties. The hydrogel possesses outstanding hemostatic capabilities even under the anticoagulated conditions while displaying excellent biocompatibility and feasibility. These results reveal that the optimized hydrogel may be a facile, effective, and safe sealant for hemorrhage control in vivo.
Collapse
Affiliation(s)
- Yazhong Bu
- Beijing National Laboratory for Molecular Sciences, Institute of Chemistry, Chinese Academy of Sciences, Beijing, 100190, China
- School of Chemical Sciences, University of Chinese Academy of Sciences, Beijing, 100049, China
| | - Licheng Zhang
- Department of Orthopaedics, Chinese PLA General Hospital, Beijing, 100853, China
| | - Guofei Sun
- Department of Orthopaedics, Chinese PLA General Hospital, Beijing, 100853, China
| | - Feifei Sun
- Beijing National Laboratory for Molecular Sciences, Institute of Chemistry, Chinese Academy of Sciences, Beijing, 100190, China
| | - Jianheng Liu
- Department of Orthopaedics, Chinese PLA General Hospital, Beijing, 100853, China
| | - Fei Yang
- Beijing National Laboratory for Molecular Sciences, Institute of Chemistry, Chinese Academy of Sciences, Beijing, 100190, China
- School of Chemical Sciences, University of Chinese Academy of Sciences, Beijing, 100049, China
| | - Peifu Tang
- Department of Orthopaedics, Chinese PLA General Hospital, Beijing, 100853, China
| | - Decheng Wu
- Beijing National Laboratory for Molecular Sciences, Institute of Chemistry, Chinese Academy of Sciences, Beijing, 100190, China
- School of Chemical Sciences, University of Chinese Academy of Sciences, Beijing, 100049, China
| |
Collapse
|
560
|
Blacklow SO, Li J, Freedman BR, Zeidi M, Chen C, Mooney DJ. Bioinspired mechanically active adhesive dressings to accelerate wound closure. SCIENCE ADVANCES 2019; 5:eaaw3963. [PMID: 31355332 PMCID: PMC6656537 DOI: 10.1126/sciadv.aaw3963] [Citation(s) in RCA: 226] [Impact Index Per Article: 45.2] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 12/17/2018] [Accepted: 06/20/2019] [Indexed: 05/21/2023]
Abstract
Inspired by embryonic wound closure, we present mechanically active dressings to accelerate wound healing. Conventional dressings passively aid healing by maintaining moisture at wound sites. Recent developments have focused on drug and cell delivery to drive a healing process, but these methods are often complicated by drug side effects, sophisticated fabrication, and high cost. Here, we present novel active adhesive dressings consisting of thermoresponsive tough adhesive hydrogels that combine high stretchability, toughness, tissue adhesion, and antimicrobial function. They adhere strongly to the skin and actively contract wounds, in response to exposure to the skin temperature. In vitro and in vivo studies demonstrate their efficacy in accelerating and supporting skin wound healing. Finite element models validate and refine the wound contraction process enabled by these active adhesive dressings. This mechanobiological approach opens new avenues for wound management and may find broad utility in applications ranging from regenerative medicine to soft robotics.
Collapse
Affiliation(s)
- S. O. Blacklow
- John A. Paulson School of Engineering and Applied Sciences, Harvard University, Cambridge, MA 02138, USA
- Wyss Institute for Biologically Inspired Engineering, Harvard University, Cambridge, MA 02138, USA
- School of Medicine, University of California, San Francisco, San Francisco, CA 94143, USA
- Department of Bioengineering, University of California, Berkeley, Berkeley, CA 94720, USA
| | - J. Li
- John A. Paulson School of Engineering and Applied Sciences, Harvard University, Cambridge, MA 02138, USA
- Wyss Institute for Biologically Inspired Engineering, Harvard University, Cambridge, MA 02138, USA
- Department of Mechanical Engineering, McGill University, Montreal, QC H3A 0G4, Canada
- Department of Biomedical Engineering, McGill University, Montreal, QC H3A 0G4, Canada
| | - B. R. Freedman
- John A. Paulson School of Engineering and Applied Sciences, Harvard University, Cambridge, MA 02138, USA
- Wyss Institute for Biologically Inspired Engineering, Harvard University, Cambridge, MA 02138, USA
| | - M. Zeidi
- Department of Mechanical Engineering, McGill University, Montreal, QC H3A 0G4, Canada
| | - C. Chen
- John A. Paulson School of Engineering and Applied Sciences, Harvard University, Cambridge, MA 02138, USA
- Wyss Institute for Biologically Inspired Engineering, Harvard University, Cambridge, MA 02138, USA
| | - D. J. Mooney
- John A. Paulson School of Engineering and Applied Sciences, Harvard University, Cambridge, MA 02138, USA
- Wyss Institute for Biologically Inspired Engineering, Harvard University, Cambridge, MA 02138, USA
| |
Collapse
|
561
|
Jing J, Liang S, Yan Y, Tian X, Li X. Fabrication of Hybrid Hydrogels from Silk Fibroin and Tannic Acid with Enhanced Gelation and Antibacterial Activities. ACS Biomater Sci Eng 2019; 5:4601-4611. [DOI: 10.1021/acsbiomaterials.9b00604] [Citation(s) in RCA: 61] [Impact Index Per Article: 12.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/17/2022]
Affiliation(s)
- Juan Jing
- College of Chemistry, Chemical Engineering and Materials Science, Soochow University, Suzhou 215123, China
| | - Shufeng Liang
- State Key Laboratory of Radiation Medicine and Protection, School for Radiological and Interdisciplinary Sciences (RAD-X), Collaborative Innovation Center of Radiation Medicine of Jiangsu Higher Education Institutions, Soochow University, Suzhou 215123, China
| | - Yufei Yan
- Shanghai Key Laboratory for Bone and Joint Diseases, Shanghai Institute of Orthopaedics and Traumatology, Shanghai Ruijin Hospital, School of Medicine, Shanghai Jiaotong University, Shanghai 200025, China
| | - Xin Tian
- State Key Laboratory of Radiation Medicine and Protection, School for Radiological and Interdisciplinary Sciences (RAD-X), Collaborative Innovation Center of Radiation Medicine of Jiangsu Higher Education Institutions, Soochow University, Suzhou 215123, China
| | - Xinming Li
- College of Chemistry, Chemical Engineering and Materials Science, Soochow University, Suzhou 215123, China
| |
Collapse
|
562
|
Ren X, Yang C, Zhang L, Li S, Shi S, Wang R, Zhang X, Yue T, Sun J, Wang J. Copper metal-organic frameworks loaded on chitosan film for the efficient inhibition of bacteria and local infection therapy. NANOSCALE 2019; 11:11830-11838. [PMID: 31184673 DOI: 10.1039/c9nr03612a] [Citation(s) in RCA: 62] [Impact Index Per Article: 12.4] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/19/2023]
Abstract
Although multiple advanced antibacterial and sterilization materials are available, bacterial infections still remain a big challenge in wound healing as they usually induce serious complications and cannot be thoroughly eliminated. Herein, we report an antibacterial film composed of the naturally derived polysaccharide chitosan (CS) and a copper metal-organic framework (HKUST-1) as a multifunctional platform for antibacterial and local infection therapy applications. As expected, the as-prepared HKUST-1/CS film possessed versatile abilities such as slow release of copper ions and reduced cytotoxicity; moreover, fluorescent staining and morphological changes of the bacteria treated with the HKUST-1/CS film confirmed the antibacterial activity of the fabricated film. Furthermore, in vivo results revealed that the HKUST-1/CS film could simultaneously kill bacteria and promote vessel regeneration; this resulted in an enhanced wound closure rate during the local infection therapy process. Overall, these results highlight that the HKUST-1/CS film exhibits significant potential as a suitable and promising wound dressing.
Collapse
Affiliation(s)
- Xinyi Ren
- College of Food Science and Engineering, Northwest A&F University, Yangling, 712100 Shaanxi, P. R. China.
| | | | | | | | | | | | | | | | | | | |
Collapse
|
563
|
Zhang K, Bai X, Yuan Z, Cao X, Jiao X, Li Y, Qin Y, Wen Y, Zhang X. Layered nanofiber sponge with an improved capacity for promoting blood coagulation and wound healing. Biomaterials 2019; 204:70-79. [DOI: 10.1016/j.biomaterials.2019.03.008] [Citation(s) in RCA: 110] [Impact Index Per Article: 22.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/03/2018] [Revised: 03/04/2019] [Accepted: 03/10/2019] [Indexed: 01/07/2023]
|
564
|
Chitosan-bound carboxymethylated cotton fabric and its application as wound dressing. Carbohydr Polym 2019; 221:202-208. [PMID: 31227159 DOI: 10.1016/j.carbpol.2019.05.082] [Citation(s) in RCA: 38] [Impact Index Per Article: 7.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/10/2018] [Revised: 05/20/2019] [Accepted: 05/28/2019] [Indexed: 12/18/2022]
Abstract
Cotton fabric (CF) is commonly used in wound treatment, however, its hemostatic efficiency is far from sufficient. In this study, modified cotton fabric (MCF-0.39) was obtained by a carboxymethylation process, which endowed MCF-0.39 with good swelling ability and water absorption capacity. Chitosan (CHI) was bound to MCF-0.39 by the binder sodium carboxymethyl cellulose (NaCMC) via flat-screen printing technique to prepare the hybrid hemostatic material (CHI-MCF-0.39). The blood clotting index (BCI) of CHI-MCF-0.39 was 3.15-fold lower than that of CF, demonstrating the good clotting ability of the material. In rat liver injury and femoral artery animal model, the groups using CHI-MCF-0.39 had less hemostasis time and blood loss compared with those groups using CF. All the above results indicate that the prepared CHI-MCF-0.39 has promising future applications as effective hemostatic material in trauma treatment.
Collapse
|
565
|
Zhang J, Yang B, Jia Q, Xiao M, Hou Z. Preparation, Physicochemical Properties, and Hemocompatibility of the Composites Based on Biodegradable Poly(Ether-Ester-Urethane) and Phosphorylcholine-Containing Copolymer. Polymers (Basel) 2019; 11:E860. [PMID: 31083573 PMCID: PMC6572198 DOI: 10.3390/polym11050860] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/04/2019] [Revised: 05/05/2019] [Accepted: 05/09/2019] [Indexed: 01/20/2023] Open
Abstract
To improve the hemocompatibility of the biodegradable medical poly(ether-ester-urethane) (PEEU), containing uniform-size aliphatic hard segments that was prepared in our lab, a copolymer containing phosphorylcholine (PC) groups was blended with the PEEU. The PC-copolymer of poly(MPC-co-EHMA) (PMEH) was first obtained by copolymerization of 2-methacryloyloxyethyl phosphorylcholine (MPC) and 2-ethylhexyl methacrylate (EHMA), and then dissolved in mixed solvent of ethanol/chloroform to obtain a homogeneous solution. The composite films (PMPU) with varying PMEH content were prepared by solvent evaporation method. The physicochemical properties of the composite films with varying PMEH content were researched. The PMPU films exhibited higher thermal stability than that of the pure PEEU film. With the PMEH content increasing from 5 to 20 wt%, the PMPU films also possessed satisfied tensile properties with ultimate stress of 22.9-15.8 MPa and strain at break of 925-820%. The surface and bulk hydrophilicity of the films were improved after incorporation of PMEH. In vitro degradation studies indicated that the degradation rate increased with PMEH content, and it took 12-24 days for composite films to become fragments. The protein adsorption and platelet-rich plasma contact tests were adapted to evaluate the surface hemocompatibility of the composite films. It was found that the amount of adsorbed protein and adherent platelet on the surface decreased significantly, and almost no activated platelets were observed when PMEH content was above 5 wt%, which manifested good surface hemocompatibility. Due to the biodegradability, acceptable tensile properties and good surface hemocompatibility, the composites can be expected to be applied in blood-contacting implant materials.
Collapse
Affiliation(s)
- Jun Zhang
- College of Chemistry, Chemical Engineering and Materials Science, Shandong Normal University, Jinan 250014, China.
| | - Bing Yang
- Key Laboratory of Public Security Management Technology in Universities of Shandong, Shandong Management University, Jinan 250357, China.
| | - Qi Jia
- Qilu Pharmaceutical Co. Ltd., Jinan 250104, China.
| | - Minghui Xiao
- College of Chemistry, Chemical Engineering and Materials Science, Shandong Normal University, Jinan 250014, China.
| | - Zhaosheng Hou
- College of Chemistry, Chemical Engineering and Materials Science, Shandong Normal University, Jinan 250014, China.
| |
Collapse
|
566
|
Tao Y, Wei C, Liu J, Deng C, Cai S, Xiong W. Nanostructured electrically conductive hydrogels obtained via ultrafast laser processing and self-assembly. NANOSCALE 2019; 11:9176-9184. [PMID: 31038144 DOI: 10.1039/c9nr01230c] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/09/2023]
Abstract
Electrically conductive polymers have emerged as functional materials for future electronics due to their high electrical conductivity, real-time responsiveness, easy film-formation ability and desirable stretchability. However, the previously developed conductive polymer electronics are still limited to macroscopic hydrogels or films without complicated designs of fine features. Herein, a carbon nanotube-doped hydrophilic photoresist was ultrafast laser processed as an absorbent 3D scaffold to fabricate nanostructured electrically conductive hydrogels (NECHs) for the first time. Taking advantage of the intermolecular forces, we in situ interpenetrated π-conjugated poly(3,4-ethylenedioxythiophene) into NECHs by self-assembly to combine fine features (resolution down to 500 nm, at least two-order accuracy improvement than that in the case of standard 3D-printed electronics) and achieve a high electrical conductivity (0.1-42.5 S m-1), device-level mechanical properties and desirable tolerance to humid/acid environments. Consequently, several reliable, nanostructured, metal-free electrical circuits, alcohol micro-sensors, interdigital capacitors, and loop inductors have been experimentally identified and characterized. The NECHs successfully break current limitations by making better use of the two photon hydrogelation and highly conductive polymer. Optical clarity, conductivity, and extensibility of the NECHs promise their applications in micro energy storage devices, epidermal electronics, nanorobotics and electrical circuit boards for challenging conditions.
Collapse
Affiliation(s)
- Yufeng Tao
- Wuhan National Laboratory of OptoElectronics, Huazhong University of Science and Technology, 1037 Luoyu Road, Wuhan, 430074, China.
| | | | | | | | | | | |
Collapse
|
567
|
N-alkylated chitosan/graphene oxide porous sponge for rapid and effective hemostasis in emergency situations. Carbohydr Polym 2019; 219:405-413. [PMID: 31151541 DOI: 10.1016/j.carbpol.2019.05.028] [Citation(s) in RCA: 57] [Impact Index Per Article: 11.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/04/2019] [Revised: 04/28/2019] [Accepted: 05/08/2019] [Indexed: 01/24/2023]
Abstract
N-alkylated chitosan (AC) sponges and graphene oxide (GO) sponges are promising candidates for emergency hemostat. However, AC sponges have weak mechanical strength and GO sponges may induce toxicity. To overcome these problems, a series of AC/GO composite spongs (ACGS) were prepared with various ratios (GO/AC, 0%, 5%, 10%, and 20%) using a dilute solution freeze phase separation and drying process. The sponges exhibit excellent absorption capacity, mechanical stability, and biocompatibility. In serial in vitro clotting tests, the higher the ratio of GO, the better the coagulation efficiency. ACGS with 20% ratio of GO (ACGS20) has shorter hemostatic time than Celox in a rabbit femoral injury test. Moreover, ACGS20 can accelerate erythrocyte and platelet adhesion. CD62p and intracellular Ca2+ measurements show that ACGS20 can promote the release of intracellular Ca2+ and stimulate platelet activation. These results suggest that ACGS20 is a good candidate composition for a safe and efficacious hemostatic dressing.
Collapse
|
568
|
Xiang Y, Mao C, Liu X, Cui Z, Jing D, Yang X, Liang Y, Li Z, Zhu S, Zheng Y, Yeung KWK, Zheng D, Wang X, Wu S. Rapid and Superior Bacteria Killing of Carbon Quantum Dots/ZnO Decorated Injectable Folic Acid-Conjugated PDA Hydrogel through Dual-Light Triggered ROS and Membrane Permeability. SMALL (WEINHEIM AN DER BERGSTRASSE, GERMANY) 2019; 15:e1900322. [PMID: 31021489 DOI: 10.1002/smll.201900322] [Citation(s) in RCA: 142] [Impact Index Per Article: 28.4] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 01/18/2019] [Revised: 04/04/2019] [Indexed: 05/19/2023]
Abstract
One of the most difficult challenges in the biomedical field is bacterial infection, which causes tremendous harm to human health. In this work, an injectable hydrogel is synthesized through rapid assembly of dopamine (DA) and folic acid (FA) cross-linked by transition metal ions (TMIs, i.e., Zn2+ ), which was named as DFT-hydrogel. Both the two carboxyl groups in the FA molecule and catechol in polydopamine (PDA) easily chelates Zn2+ to form metal-ligand coordination, thereby allowing this injectable hydrogel to match the shapes of wounds. In addition, PDA in the hydrogel coated around carbon quantum dot-decorated ZnO (C/ZnO) nanoparticles (NPs) to rapidly generate reactive oxygen species (ROS) and heat under illumination with 660 and 808 nm light, endows this hybrid hydrogel with great antibacterial efficacy against Staphylococcus aureus (S. aureus, typical Gram-positive bacteria) and Escherichia coli (E. coli, typical Gram-negative bacteria). The antibacterial efficacy of the prepared DFT-C/ZnO-hydrogel against S. aureus and E. coli under dual-light irradiation is 99.9%. Importantly, the hydrogels release zinc ions over 12 days, resulting in a sustained antimicrobial effect and promoted fibroblast growth. Thus, this hybrid hydrogel exhibits great potential for the reconstruction of bacteria-infected tissues, especially exposed wounds.
Collapse
Affiliation(s)
- Yiming Xiang
- Key Laboratory for the Green Preparation and Application of Functional Materials, Hubei Key Laboratory of Polymer Materials, School of Materials Science & Engineering, Hubei University, Ministry of Education, Wuhan, 430062, China
| | - Congyang Mao
- Key Laboratory for the Green Preparation and Application of Functional Materials, Hubei Key Laboratory of Polymer Materials, School of Materials Science & Engineering, Hubei University, Ministry of Education, Wuhan, 430062, China
| | - Xiangmei Liu
- Key Laboratory for the Green Preparation and Application of Functional Materials, Hubei Key Laboratory of Polymer Materials, School of Materials Science & Engineering, Hubei University, Ministry of Education, Wuhan, 430062, China
| | - Zhenduo Cui
- School of Materials Science & Engineering, Key Laboratory of Advanced Ceramics and Machining Technology, Tianjin University, Ministry of Education, Tianjin, 300072, China
| | - Doudou Jing
- Department of Orthopaedics, Union Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, 430022, China
| | - Xianjin Yang
- School of Materials Science & Engineering, Key Laboratory of Advanced Ceramics and Machining Technology, Tianjin University, Ministry of Education, Tianjin, 300072, China
| | - Yanqin Liang
- School of Materials Science & Engineering, Key Laboratory of Advanced Ceramics and Machining Technology, Tianjin University, Ministry of Education, Tianjin, 300072, China
| | - Zhaoyang Li
- School of Materials Science & Engineering, Key Laboratory of Advanced Ceramics and Machining Technology, Tianjin University, Ministry of Education, Tianjin, 300072, China
| | - Shengli Zhu
- School of Materials Science & Engineering, Key Laboratory of Advanced Ceramics and Machining Technology, Tianjin University, Ministry of Education, Tianjin, 300072, China
| | - Yufeng Zheng
- State Key Laboratory for Turbulence and Complex System and Department of Materials Science and Engineering, College of Engineering, Peking University, Beijing, 100871, China
| | - Kelvin Wai Kwok Yeung
- Department of Orthopaedics & Traumatology, Li KaShing Faculty of Medicine, The University of Hong Kong, Pokfulam, Hong Kong, 999077, China
| | - Dong Zheng
- Department of Orthopaedics, Union Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, 430022, China
| | - Xianbao Wang
- Key Laboratory for the Green Preparation and Application of Functional Materials, Hubei Key Laboratory of Polymer Materials, School of Materials Science & Engineering, Hubei University, Ministry of Education, Wuhan, 430062, China
| | - Shuilin Wu
- Key Laboratory for the Green Preparation and Application of Functional Materials, Hubei Key Laboratory of Polymer Materials, School of Materials Science & Engineering, Hubei University, Ministry of Education, Wuhan, 430062, China
- School of Materials Science & Engineering, Key Laboratory of Advanced Ceramics and Machining Technology, Tianjin University, Ministry of Education, Tianjin, 300072, China
| |
Collapse
|
569
|
Abbasian M, Massoumi B, Mohammad-Rezaei R, Samadian H, Jaymand M. Scaffolding polymeric biomaterials: Are naturally occurring biological macromolecules more appropriate for tissue engineering? Int J Biol Macromol 2019; 134:673-694. [PMID: 31054302 DOI: 10.1016/j.ijbiomac.2019.04.197] [Citation(s) in RCA: 105] [Impact Index Per Article: 21.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/10/2019] [Revised: 04/15/2019] [Accepted: 04/30/2019] [Indexed: 12/14/2022]
Abstract
Nowadays, tissue and organ failures resulted from injury, aging accounts, diseases or other type of damages is one of the most important health problems with an increasing incidence worldwide. Current treatments have limitations including, low graft efficiency, shortage of donor organs, as well as immunological problems. In this context, tissue engineering (TE) was introduced as a novel and versatile approach for restoring tissue/organ function using living cells, scaffold and bioactive (macro-)molecules. Among these, scaffold as a three-dimensional (3D) support material, provide physical and chemical cues for seeding cells and has an essential role in cell missions. Among the wide verity of scaffolding materials, natural or synthetic biopolymers are the most commonly biomaterials mainly due to their unique physicochemical and biological features. In this context, naturally occurring biological macromolecules are particular of interest owing to their low immunogenicity, excellent biocompatibility and cytocompatibility, as well as antigenicity that qualified them as popular choices for scaffolding applications. In this review, we highlighted the potentials of natural and synthetic polymers as scaffolding materials. The properties, advantages, and disadvantages of both polymer types as well as the current status, challenges, and recent progresses regarding the application of them as scaffolding biomaterials are also discussed.
Collapse
Affiliation(s)
- Mojtaba Abbasian
- Department of Chemistry, Payame Noor University, P.O. Box: 19395-3697, Tehran, Iran
| | - Bakhshali Massoumi
- Department of Chemistry, Payame Noor University, P.O. Box: 19395-3697, Tehran, Iran
| | - Rahim Mohammad-Rezaei
- Analytical Chemistry Research Laboratory, Faculty of Sciences, Azarbaijan Shahid Madani University, P.O. Box: 53714-161, Tabriz, Iran
| | - Hadi Samadian
- Nano Drug Delivery Research Center, Health Technology Institute, Kermanshah University of Medical Sciences, Kermanshah, Iran
| | - Mehdi Jaymand
- Nano Drug Delivery Research Center, Health Technology Institute, Kermanshah University of Medical Sciences, Kermanshah, Iran.
| |
Collapse
|
570
|
Molecular design, synthesis and biomedical applications of stimuli-responsive shape memory hydrogels. Eur Polym J 2019. [DOI: 10.1016/j.eurpolymj.2019.03.004] [Citation(s) in RCA: 31] [Impact Index Per Article: 6.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/07/2023]
|
571
|
Photocatalytic antibacterial agent incorporated double-network hydrogel for wound healing. Colloids Surf B Biointerfaces 2019; 180:237-244. [PMID: 31055150 DOI: 10.1016/j.colsurfb.2019.04.043] [Citation(s) in RCA: 28] [Impact Index Per Article: 5.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/18/2019] [Revised: 04/17/2019] [Accepted: 04/18/2019] [Indexed: 11/20/2022]
Abstract
A novel antibacterial hydrogel was prepared through the addition of IT to a chitin (CT) and polyvinyl alcohol (PVA) hydrogel, creating a promising material for wound dressings. The addition of nano particles IT endowed the anti-bacterial activity of hydrogel as well as had a positive impact on the mechanical properties of the hydrogels. The structure of the prepared hydrogel dressing was characterized by FTIR, XPS, XRD, SEM and TEM. The composite hydrogel exhibited excellent anti-bacterial activity under the visible light. Cytotoxicity tests (L929 fibroblast cells) showed all samples achieving up to 80% cell viability. Furthermore, compared with conventional dressings, wound healing test revealed that CT/PVA/IT hydrogel could accelerated wound healing in vivo, wound closure rates reached 95.5% after 10 days. This study suggests that the novel hydrogel has considerable potential for applications in wound dressings.
Collapse
|
572
|
Boles LR, Bumgardner JD, Fujiwara T, Haggard WO, Guerra FD, Jennings JA. Characterization of trimethyl chitosan/polyethylene glycol derivatized chitosan blend as an injectable and degradable antimicrobial delivery system. Int J Biol Macromol 2019; 133:372-381. [PMID: 30986460 DOI: 10.1016/j.ijbiomac.2019.04.075] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/26/2018] [Revised: 03/19/2019] [Accepted: 04/11/2019] [Indexed: 01/19/2023]
Abstract
Advanced local delivery systems are needed as adjunctive treatments for severe injuries with high infection rates, such as open fractures. Chitosan systems have been investigated as antimicrobial local delivery systems for orthopaedic infection but possess mismatches between elution and degradation properties. Derivatives of chitosan were chosen that have enhanced swelling ratios or tailorable degradation properties. A combination of trimethyl chitosan and poly(ethylene glycol) diacrylate chitosan was developed as an injectable local delivery system. Research objectives were elution of antimicrobials for 7 days, degradation as open fractures heal, and cytocompatibility. The derivative combination eluted increased active concentrations of vancomycin and amikacin compared to the non-derivatized chitosan paste, 6 vs. 5 days and 5 vs. 4 days, respectively. The derivative combination degraded slower than non-derivatized paste in an enzymatic degradation study, 14 vs. 3 days, which increased antimicrobial delivery duration. Cytocompatibility of the combination with fibroblast and pre-osteoblast cells exceeds the cell viability standard set in ISO 10993-5. Combination paste requires an increased ejection force of 9.40 N (vs. 0.64 N), but this force was within an acceptable injection force threshold, 80 N. These preliminary results indicate combination paste should be further developed into a clinically useful adjunctive local delivery system for infection prevention.
Collapse
Affiliation(s)
- Logan R Boles
- Department of Biomedical Engineering, University of Memphis, Memphis, TN, United States of America
| | - Joel D Bumgardner
- Department of Biomedical Engineering, University of Memphis, Memphis, TN, United States of America
| | - Tomoko Fujiwara
- Department of Biomedical Engineering, University of Memphis, Memphis, TN, United States of America
| | - Warren O Haggard
- Department of Biomedical Engineering, University of Memphis, Memphis, TN, United States of America
| | - Fernanda D Guerra
- Department of Biomedical Engineering, University of Memphis, Memphis, TN, United States of America
| | - Jessica A Jennings
- Department of Biomedical Engineering, University of Memphis, Memphis, TN, United States of America.
| |
Collapse
|
573
|
Tanc B, Orakdogen N. A versatile strategy for mechanically durable nanocomposite cryogels based on cationic (alkyl)methacrylates and hydrophilic bentonite via freezing (cryo)polymerization. SOFT MATTER 2019; 15:3208-3226. [PMID: 30912566 DOI: 10.1039/c9sm00197b] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/09/2023]
Abstract
A simple strategy for the preparation of organic-inorganic (alkyl)methacrylate-based nanocomposite gels was established. The preparation procedure was based on free-radical copolymerization of cationic monomer N,N-dimethylaminoethyl methacrylate (DMAEMA) in the presence of a low amount of ionic comonomer 2-acrylamido-2-methyl-propanosulfonic acid (AMPS), nanoclay bentonite (BENT) and diethyleneglycol dimethacrylate (DEGDMA) as a chemical crosslinker. The parameters of equilibrium volume swelling, initial swelling rate, diffusional exponent, and early- and late-time diffusion coefficients were evaluated from the swelling measurements in salt solutions. PDMAEMA retained its own characteristics regardless of the amounts of ionic comonomer AMPS and nanoclay bentonite. The prepared nanocomposite cryogels/hydrogels were found to be pH and temperature-responsive. The elastic moduli and compressibility of the nanocomposite NC/BENTm-Cgels were much higher than those of NC/BENTm-Hgels. The effective crosslink density distribution of the nanocomposite NC/BENTm-Hgels was evaluated from the elastic moduli data of the as-prepared state and the degree of crosslinking was described by a quadratic polynomial as a function of the clay concentration. At high clay content, the nanocomposite NC/BENTm gels exhibited a lower swelling degree, and thus a higher crosslinking density than the clay-free gels. Both NC/BENTm Hgels and Cgels exhibited obvious pH and temperature double sensitiveness; the equilibrium degree of swelling decreased as the solution's pH or the swelling temperature increased. The power law exponent values obtained from dynamic swelling in aqueous Na2SO4 solution indicated that the sorption mechanism of both the nanocomposite NC/BENTm-Hgel and NC/BENTm-Cgel samples was Fickian controlled. Overall, this study successfully establishes the thermodynamic relations between the physico-mechanical behavior and characteristic network parameters of (alkyl)methacrylate-based nanocomposite gels prepared at various BENT concentrations.
Collapse
Affiliation(s)
- Beril Tanc
- Istanbul Technical University, Department of Chemistry, Soft Materials Research Laboratory, 34469, Istanbul, Maslak, Turkey.
| | | |
Collapse
|
574
|
Wang B, Zhai W, Fan JB, Xu J, Zhao W, Feng X. An interfacially polymerized self-healing organo/hydro copolymer with shape memory. NANOSCALE 2019; 11:6846-6851. [PMID: 30912569 DOI: 10.1039/c9nr00101h] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/09/2023]
Abstract
Organo/hydro copolymer materials have recently received significant attention in the fields of energy, environment and healthcare. Herein, we report the fabrication of a robust organo/hydro copolymer with rapid self-healing and shape memory by emulsion interfacial polymerization. The emulsion interfacial polymerization allowed the formation of a crosslinked organo/hydro copolymer with hydrogen-bonded networks, significantly enhancing the mechanical properties; the proposed organo/hydro copolymer substantially outperformed most of the synthetic self-healing polymers based on hydrogen bonding interactions. We showed that the interfacially polymerized organo/hydro copolymer exhibited good self-healing capacity, i.e. achieved self-healing in less than 2 h, with a healing efficiency of 95.6%. Moreover, it presented shape memory, with a complete shape memory time less than 5 min.
Collapse
Affiliation(s)
- Binshuai Wang
- CAS Key Laboratory of Bio-inspired Materials and Interfacial Science, CAS Center for Excellence in Nanoscience, Technical Institute of Physics and Chemistry, Chinese Academy of Sciences, Beijing, 100190, P. R. China.
| | | | | | | | | | | |
Collapse
|
575
|
Liu S, Jin M, Chen Y, Teng L, Qi D, Ren L. Air‐In‐Water Emulsion Solely Stabilized by Gelatin Methacryloyl and Templating for Macroporous Nanocomposite Hydrogels. MACROMOL CHEM PHYS 2019. [DOI: 10.1002/macp.201800500] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/20/2022]
Affiliation(s)
- Sa Liu
- School of Materials Science and EngineeringSouth China University of Technology Guangzhou 510640 China
- National Engineering Research Center for Tissue Restoration and ReconstructionSouth China University of Technology Guangzhou 510006 China
- Key Laboratory of Biomedical Engineering of Guangdong Provinceand Innovation Center for Tissue Restoration and ReconstructionSouth China University of Technology Guangzhou 510006 China
| | - Min Jin
- School of Materials Science and EngineeringSouth China University of Technology Guangzhou 510640 China
| | - Yunhua Chen
- School of Materials Science and EngineeringSouth China University of Technology Guangzhou 510640 China
- National Engineering Research Center for Tissue Restoration and ReconstructionSouth China University of Technology Guangzhou 510006 China
- Key Laboratory of Biomedical Engineering of Guangdong Provinceand Innovation Center for Tissue Restoration and ReconstructionSouth China University of Technology Guangzhou 510006 China
| | - Lijing Teng
- National Engineering Research Center for Tissue Restoration and ReconstructionSouth China University of Technology Guangzhou 510006 China
| | - Dawei Qi
- School of Materials Science and EngineeringSouth China University of Technology Guangzhou 510640 China
| | - Li Ren
- School of Materials Science and EngineeringSouth China University of Technology Guangzhou 510640 China
- National Engineering Research Center for Tissue Restoration and ReconstructionSouth China University of Technology Guangzhou 510006 China
- Key Laboratory of Biomedical Engineering of Guangdong Provinceand Innovation Center for Tissue Restoration and ReconstructionSouth China University of Technology Guangzhou 510006 China
| |
Collapse
|
576
|
Du X, Wu L, Yan H, Qu L, Wang L, Wang X, Ren S, Kong D, Wang L. Multifunctional Hydrogel Patch with Toughness, Tissue Adhesiveness, and Antibacterial Activity for Sutureless Wound Closure. ACS Biomater Sci Eng 2019; 5:2610-2620. [DOI: 10.1021/acsbiomaterials.9b00130] [Citation(s) in RCA: 48] [Impact Index Per Article: 9.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
Affiliation(s)
- Xinchen Du
- Key Laboratory of Bioactive Materials, Ministry of Education, College of Life Sciences, Nankai University, Tianjin 300071, P. R. China
| | - Le Wu
- Key Laboratory of Bioactive Materials, Ministry of Education, College of Life Sciences, Nankai University, Tianjin 300071, P. R. China
| | - Hongyu Yan
- Key Laboratory of Bioactive Materials, Ministry of Education, College of Life Sciences, Nankai University, Tianjin 300071, P. R. China
| | - Lijie Qu
- Key Laboratory of Bioactive Materials, Ministry of Education, College of Life Sciences, Nankai University, Tianjin 300071, P. R. China
| | - Lina Wang
- Key Laboratory of Bioactive Materials, Ministry of Education, College of Life Sciences, Nankai University, Tianjin 300071, P. R. China
| | - Xin Wang
- Key Laboratory of Bioactive Materials, Ministry of Education, College of Life Sciences, Nankai University, Tianjin 300071, P. R. China
| | - Shuo Ren
- Key Laboratory of Bioactive Materials, Ministry of Education, College of Life Sciences, Nankai University, Tianjin 300071, P. R. China
| | - Deling Kong
- Key Laboratory of Bioactive Materials, Ministry of Education, College of Life Sciences, Nankai University, Tianjin 300071, P. R. China
| | - Lianyong Wang
- Key Laboratory of Bioactive Materials, Ministry of Education, College of Life Sciences, Nankai University, Tianjin 300071, P. R. China
| |
Collapse
|
577
|
Guo F, Wang Y, Chen X, Chen M, He W, Chen Z. Supermacroporous polydivinylbenzene cryogels with high surface area: Synthesis by solvothermal postcrosslinking and their adsorption behaviors for carbon dioxide and aniline. J Appl Polym Sci 2019. [DOI: 10.1002/app.47716] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/06/2023]
Affiliation(s)
- Fenghao Guo
- Shandong Provincial Key Laboratory of Fluorine Chemistry and Chemical Materials, School of Chemistry and Chemical EngineeringUniversity of Jinan Jinan 250022 China
| | - Yinping Wang
- Shandong Provincial Key Laboratory of Fluorine Chemistry and Chemical Materials, School of Chemistry and Chemical EngineeringUniversity of Jinan Jinan 250022 China
| | - Xilu Chen
- Shandong Provincial Key Laboratory of Fluorine Chemistry and Chemical Materials, School of Chemistry and Chemical EngineeringUniversity of Jinan Jinan 250022 China
| | - Mingqian Chen
- Shandong Provincial Key Laboratory of Fluorine Chemistry and Chemical Materials, School of Chemistry and Chemical EngineeringUniversity of Jinan Jinan 250022 China
| | - Wei He
- Shandong Provincial Key Laboratory of Fluorine Chemistry and Chemical Materials, School of Chemistry and Chemical EngineeringUniversity of Jinan Jinan 250022 China
| | - Zhiyong Chen
- Shandong Provincial Key Laboratory of Fluorine Chemistry and Chemical Materials, School of Chemistry and Chemical EngineeringUniversity of Jinan Jinan 250022 China
| |
Collapse
|
578
|
Li Y, Zhu C, Fan D, Fu R, Ma P, Duan Z, Li X, Lei H, Chi L. Construction of porous sponge-like PVA-CMC-PEG hydrogels with pH-sensitivity via phase separation for wound dressing. INT J POLYM MATER PO 2019. [DOI: 10.1080/00914037.2019.1581200] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/27/2023]
Affiliation(s)
- Yang Li
- Shaanxi Key Laboratory of Degradable Biomedical Materials, School of Chemical Engineering, Northwest University, Xi’an, China
- Shaanxi R&D Center of Biomaterials and Fermentation Engineering, School of Chemical Engineering, Northwest University, Xi’an, China
- Biotech. & Biomed. Research Institute, Northwest University, Xi’an, Shaanxi, China
| | - Chenhui Zhu
- Shaanxi Key Laboratory of Degradable Biomedical Materials, School of Chemical Engineering, Northwest University, Xi’an, China
- Shaanxi R&D Center of Biomaterials and Fermentation Engineering, School of Chemical Engineering, Northwest University, Xi’an, China
- Biotech. & Biomed. Research Institute, Northwest University, Xi’an, Shaanxi, China
| | - Daidi Fan
- Shaanxi Key Laboratory of Degradable Biomedical Materials, School of Chemical Engineering, Northwest University, Xi’an, China
- Shaanxi R&D Center of Biomaterials and Fermentation Engineering, School of Chemical Engineering, Northwest University, Xi’an, China
- Biotech. & Biomed. Research Institute, Northwest University, Xi’an, Shaanxi, China
| | - Rongzhan Fu
- Shaanxi Key Laboratory of Degradable Biomedical Materials, School of Chemical Engineering, Northwest University, Xi’an, China
- Shaanxi R&D Center of Biomaterials and Fermentation Engineering, School of Chemical Engineering, Northwest University, Xi’an, China
- Biotech. & Biomed. Research Institute, Northwest University, Xi’an, Shaanxi, China
| | - Pei Ma
- Shaanxi Key Laboratory of Degradable Biomedical Materials, School of Chemical Engineering, Northwest University, Xi’an, China
- Shaanxi R&D Center of Biomaterials and Fermentation Engineering, School of Chemical Engineering, Northwest University, Xi’an, China
- Biotech. & Biomed. Research Institute, Northwest University, Xi’an, Shaanxi, China
| | - Zhiguang Duan
- Shaanxi Key Laboratory of Degradable Biomedical Materials, School of Chemical Engineering, Northwest University, Xi’an, China
- Shaanxi R&D Center of Biomaterials and Fermentation Engineering, School of Chemical Engineering, Northwest University, Xi’an, China
- Biotech. & Biomed. Research Institute, Northwest University, Xi’an, Shaanxi, China
| | - Xian Li
- Shaanxi Key Laboratory of Degradable Biomedical Materials, School of Chemical Engineering, Northwest University, Xi’an, China
- Shaanxi R&D Center of Biomaterials and Fermentation Engineering, School of Chemical Engineering, Northwest University, Xi’an, China
- Biotech. & Biomed. Research Institute, Northwest University, Xi’an, Shaanxi, China
| | - Huan Lei
- Shaanxi Key Laboratory of Degradable Biomedical Materials, School of Chemical Engineering, Northwest University, Xi’an, China
- Shaanxi R&D Center of Biomaterials and Fermentation Engineering, School of Chemical Engineering, Northwest University, Xi’an, China
- Biotech. & Biomed. Research Institute, Northwest University, Xi’an, Shaanxi, China
| | - Lei Chi
- Shaanxi Key Laboratory of Degradable Biomedical Materials, School of Chemical Engineering, Northwest University, Xi’an, China
| |
Collapse
|
579
|
Wei Q, Duan J, Ma G, Zhang W, Wang Q, Hu Z. Enzymatic crosslinking to fabricate antioxidant peptide-based supramolecular hydrogel for improving cutaneous wound healing. J Mater Chem B 2019; 7:2220-2225. [PMID: 32073581 DOI: 10.1039/c8tb03147a] [Citation(s) in RCA: 49] [Impact Index Per Article: 9.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/20/2022]
Abstract
Peptide-based supramolecular hydrogels are promising scaffold materials and have been utilized in many fields. The mechanical properties of peptide hydrogels are usually enhanced by synthetic or natural polymers to expand their application scope. In this study, antioxidant supramolecular hydrogels based on feruloyl-modified peptide and glycol chitosan were fabricated via a mild laccase-mediated crosslinking reaction. A natural polysaccharide derivative, feruloyl glycol chitosan (GC-Fer), was used to enhance the mechanical properties of peptide hydrogels. Feruloyl groups were introduced into the gel matrix via covalent bonds, which endowed the hydrogels with inherent antioxidant properties. This was beneficial for their in vivo application via scavenging harmful free radicals existing in a cutaneous wound. Further in vivo experiments demonstrated that the feruloyl-containing antioxidant hydrogel can improve the cutaneous wound healing process. The regeneration process of mature epithelium and connective tissues was accelerated in a full-thickness skin defect model.
Collapse
Affiliation(s)
- Qingcong Wei
- Collaborative Innovation Center of Henan Province for Green Manufacturing of Fine Chemicals, Key Laboratory of Green Chemical Media and Reactions, Ministry of Education, Henan Engineering Laboratory of Chemical Pharmaceutical and Biomedical Materials, School of Chemistry and Chemical Engineering, Henan Normal University, Xinxiang, Henan 453007, P. R. China.
| | | | | | | | | | | |
Collapse
|
580
|
Liu X, Chang M, He B, Meng L, Wang X, Sun R, Ren J, Kong F. A one-pot strategy for preparation of high-strength carboxymethyl xylan-g-poly(acrylic acid) hydrogels with shape memory property. J Colloid Interface Sci 2019; 538:507-518. [DOI: 10.1016/j.jcis.2018.12.023] [Citation(s) in RCA: 27] [Impact Index Per Article: 5.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/07/2018] [Revised: 12/04/2018] [Accepted: 12/05/2018] [Indexed: 01/09/2023]
|
581
|
Cardoso AM, de Oliveira EG, Coradini K, Bruinsmann FA, Aguirre T, Lorenzoni R, Barcelos RCS, Roversi K, Rossato DR, Pohlmann AR, Guterres SS, Burger ME, Beck RCR. Chitosan hydrogels containing nanoencapsulated phenytoin for cutaneous use: Skin permeation/penetration and efficacy in wound healing. MATERIALS SCIENCE & ENGINEERING. C, MATERIALS FOR BIOLOGICAL APPLICATIONS 2019; 96:205-217. [DOI: 10.1016/j.msec.2018.11.013] [Citation(s) in RCA: 27] [Impact Index Per Article: 5.4] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Received: 03/16/2018] [Revised: 09/27/2018] [Accepted: 11/07/2018] [Indexed: 10/27/2022]
|
582
|
Liang Y, Zhao X, Hu T, Chen B, Yin Z, Ma PX, Guo B. Adhesive Hemostatic Conducting Injectable Composite Hydrogels with Sustained Drug Release and Photothermal Antibacterial Activity to Promote Full-Thickness Skin Regeneration During Wound Healing. SMALL (WEINHEIM AN DER BERGSTRASSE, GERMANY) 2019; 15:e1900046. [PMID: 30786150 DOI: 10.1002/smll.201900046] [Citation(s) in RCA: 697] [Impact Index Per Article: 139.4] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 01/04/2019] [Revised: 02/04/2019] [Indexed: 05/22/2023]
Abstract
Developing injectable nanocomposite conductive hydrogel dressings with multifunctions including adhesiveness, antibacterial, and radical scavenging ability and good mechanical property to enhance full-thickness skin wound regeneration is highly desirable in clinical application. Herein, a series of adhesive hemostatic antioxidant conductive photothermal antibacterial hydrogels based on hyaluronic acid-graft-dopamine and reduced graphene oxide (rGO) using a H2 O2 /HPR (horseradish peroxidase) system are prepared for wound dressing. These hydrogels exhibit high swelling, degradability, tunable rheological property, and similar or superior mechanical properties to human skin. The polydopamine endowed antioxidant activity, tissue adhesiveness and hemostatic ability, self-healing ability, conductivity, and NIR irradiation enhanced in vivo antibacterial behavior of the hydrogels are investigated. Moreover, drug release and zone of inhibition tests confirm sustained drug release capacity of the hydrogels. Furthermore, the hydrogel dressings significantly enhance vascularization by upregulating growth factor expression of CD31 and improve the granulation tissue thickness and collagen deposition, all of which promote wound closure and contribute to a better therapeutic effect than the commercial Tegaderm films group in a mouse full-thickness wounds model. In summary, these adhesive hemostatic antioxidative conductive hydrogels with sustained drug release property to promote complete skin regeneration are an excellent wound dressing for full-thickness skin repair.
Collapse
Affiliation(s)
- Yongping Liang
- Frontier Institute of Science and Technology, and State Key Laboratory for Mechanical Behavior of Materials, Xi'an Jiaotong University, Xi'an, 710049, China
| | - Xin Zhao
- Frontier Institute of Science and Technology, and State Key Laboratory for Mechanical Behavior of Materials, Xi'an Jiaotong University, Xi'an, 710049, China
| | - Tianli Hu
- Frontier Institute of Science and Technology, and State Key Laboratory for Mechanical Behavior of Materials, Xi'an Jiaotong University, Xi'an, 710049, China
| | - Baojun Chen
- Department of Orthopaedics, The First Affiliated Hospital, College of Medicine, Xi'an Jiaotong University, Xi'an, 710061, China
| | - Zhanhai Yin
- Department of Orthopaedics, The First Affiliated Hospital, College of Medicine, Xi'an Jiaotong University, Xi'an, 710061, China
| | - Peter X Ma
- Macromolecular Science and Engineering Center, University of Michigan, Ann Arbor, MI, 48109, USA
- Department of Materials Science and Engineering, University of Michigan, Ann Arbor, MI, 48109, USA
| | - Baolin Guo
- Frontier Institute of Science and Technology, and State Key Laboratory for Mechanical Behavior of Materials, Xi'an Jiaotong University, Xi'an, 710049, China
- Key Laboratory of Shaanxi Province for Craniofacial Precision Medicine Research, College of Stomatology, Xi'an Jiaotong University, Xi'an, 710049, China
| |
Collapse
|
583
|
Yang GH, Yeo M, Koo YW, Kim GH. 4D Bioprinting: Technological Advances in Biofabrication. Macromol Biosci 2019; 19:e1800441. [DOI: 10.1002/mabi.201800441] [Citation(s) in RCA: 66] [Impact Index Per Article: 13.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/18/2018] [Revised: 02/13/2019] [Indexed: 01/07/2023]
Affiliation(s)
- Gi Hoon Yang
- Department of Biomechatronic EngineeringCollege of Biotechnology and BioengineeringSungkyunkwan University 16419 Suwon South Korea
| | - Miji Yeo
- Department of Biomechatronic EngineeringCollege of Biotechnology and BioengineeringSungkyunkwan University 16419 Suwon South Korea
| | - Young Won Koo
- Department of Biomechatronic EngineeringCollege of Biotechnology and BioengineeringSungkyunkwan University 16419 Suwon South Korea
| | - Geun Hyung Kim
- Department of Biomechatronic EngineeringCollege of Biotechnology and BioengineeringSungkyunkwan University 16419 Suwon South Korea
| |
Collapse
|
584
|
Bertuoli P, Ordoño J, Armelin E, Pérez-Amodio S, Baldissera AF, Ferreira CA, Puiggalí J, Engel E, del Valle LJ, Alemán C. Electrospun Conducting and Biocompatible Uniaxial and Core-Shell Fibers Having Poly(lactic acid), Poly(ethylene glycol), and Polyaniline for Cardiac Tissue Engineering. ACS OMEGA 2019; 4:3660-3672. [PMID: 31459579 PMCID: PMC6648110 DOI: 10.1021/acsomega.8b03411] [Citation(s) in RCA: 35] [Impact Index Per Article: 7.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Figures] [Subscribe] [Scholar Register] [Received: 12/05/2018] [Accepted: 01/30/2019] [Indexed: 06/10/2023]
Abstract
Electroactive and biocompatible fibrous scaffolds have been prepared and characterized using polyaniline (PAni) doped with dodecylbenzenesulfonic acid (DBSA) combined with poly(lactic acid) (PLA) and PLA/poly(ethylene glycol) (PEG) mixtures. The composition of simple and core-shell fibers, which have been obtained by both uniaxial and coaxial electrospinning, respectively, has been corroborated by Fourier-transform infrared and micro-Raman spectroscopies. Morphological studies suggest that the incorporation of PEG enhances the packing of PLA and PAni chains, allowing the regulation of the thickness of the fibers. PAni and PEG affect the thermal and electrical properties of the fibers, both decreasing the glass transition temperature and increasing the electrical conductivity. Interestingly, the incorporation of PEG improves the PAni-containing paths associated with the conduction properties. Although dose response curves evidence the high cytotoxicity of PAni/DBSA, cell adhesion and cell proliferation studies on PLA/PAni fibers show a reduction of such harmful effects as the conducting polymer is mainly retained inside the fibers through favorable PAni···PLA interactions. The incorporation of PEG into uniaxial fibers resulted in an increment of the cell mortality, which has been attributed to its rapid dissolution into the culture medium and the consequent enhancement of PAni release. In opposition, the delivery of PAni decreases and, therefore, the biocompatibility of the fibers increases when a shell coating the PAni-containing system is incorporated through coaxial electrospinning. Finally, morphological and functional studies using cardiac cells indicated that these fibrous scaffolds are suitable for cardiac tissue engineering applications.
Collapse
Affiliation(s)
- Paula
T. Bertuoli
- Programa
de Pós-Graduação em Engenharia de Minas,
Metalúrgica e Materiais (PPGE3M), and Departamento de Materiais (DEMAT), Universidade Federal do Rio Grande do Sul (UFRGS), Avenida Bento Gonçalves,
9500, 91501-970 Porto Alegre, Rio Grande do Sul, Brazil
- Departament
d’Enginyeria Química, EEBE, Universitat Politècnica de Catalunya, C/Eduard Maristany, 10-14, Ed. I2, 08019 Barcelona, Spain
- Barcelona
Research Center for Multiscale Science and Engineering, Universitat Politècnica de Catalunya, Eduard Maristany, 10-14, 08019 Barcelona, Spain
| | - Jesús Ordoño
- Institute
for Bioengineering of Catalonia (IBEC), The Barcelona Institute of Science and Technology, Baldiri Reixac 10-12, 08028 Barcelona, Spain
- CIBER
en Bioingeniería, Biomateriales y Nanomedicina, CIBER-BBN, Zaragoza 50018, Spain
| | - Elaine Armelin
- Departament
d’Enginyeria Química, EEBE, Universitat Politècnica de Catalunya, C/Eduard Maristany, 10-14, Ed. I2, 08019 Barcelona, Spain
- Barcelona
Research Center for Multiscale Science and Engineering, Universitat Politècnica de Catalunya, Eduard Maristany, 10-14, 08019 Barcelona, Spain
| | - Soledad Pérez-Amodio
- Institute
for Bioengineering of Catalonia (IBEC), The Barcelona Institute of Science and Technology, Baldiri Reixac 10-12, 08028 Barcelona, Spain
- CIBER
en Bioingeniería, Biomateriales y Nanomedicina, CIBER-BBN, Zaragoza 50018, Spain
- Materials
Science and Metallurgical Engineering, EEBE, Universitat Politècnica de Catalunya (UPC), C/Eduard Maristany, 10-14, Ed. I2, 08019 Barcelona, Spain
| | - Alessandra F. Baldissera
- Programa
de Pós-Graduação em Engenharia de Minas,
Metalúrgica e Materiais (PPGE3M), and Departamento de Materiais (DEMAT), Universidade Federal do Rio Grande do Sul (UFRGS), Avenida Bento Gonçalves,
9500, 91501-970 Porto Alegre, Rio Grande do Sul, Brazil
| | - Carlos. A. Ferreira
- Programa
de Pós-Graduação em Engenharia de Minas,
Metalúrgica e Materiais (PPGE3M), and Departamento de Materiais (DEMAT), Universidade Federal do Rio Grande do Sul (UFRGS), Avenida Bento Gonçalves,
9500, 91501-970 Porto Alegre, Rio Grande do Sul, Brazil
| | - Jordi Puiggalí
- Departament
d’Enginyeria Química, EEBE, Universitat Politècnica de Catalunya, C/Eduard Maristany, 10-14, Ed. I2, 08019 Barcelona, Spain
- Barcelona
Research Center for Multiscale Science and Engineering, Universitat Politècnica de Catalunya, Eduard Maristany, 10-14, 08019 Barcelona, Spain
| | - Elisabeth Engel
- Institute
for Bioengineering of Catalonia (IBEC), The Barcelona Institute of Science and Technology, Baldiri Reixac 10-12, 08028 Barcelona, Spain
- CIBER
en Bioingeniería, Biomateriales y Nanomedicina, CIBER-BBN, Zaragoza 50018, Spain
- Materials
Science and Metallurgical Engineering, EEBE, Universitat Politècnica de Catalunya (UPC), C/Eduard Maristany, 10-14, Ed. I2, 08019 Barcelona, Spain
| | - Luis J. del Valle
- Departament
d’Enginyeria Química, EEBE, Universitat Politècnica de Catalunya, C/Eduard Maristany, 10-14, Ed. I2, 08019 Barcelona, Spain
- Barcelona
Research Center for Multiscale Science and Engineering, Universitat Politècnica de Catalunya, Eduard Maristany, 10-14, 08019 Barcelona, Spain
| | - Carlos Alemán
- Departament
d’Enginyeria Química, EEBE, Universitat Politècnica de Catalunya, C/Eduard Maristany, 10-14, Ed. I2, 08019 Barcelona, Spain
- Barcelona
Research Center for Multiscale Science and Engineering, Universitat Politècnica de Catalunya, Eduard Maristany, 10-14, 08019 Barcelona, Spain
| |
Collapse
|
585
|
Xu Y, Cui M, Patsis PA, Günther M, Yang X, Eckert K, Zhang Y. Reversibly Assembled Electroconductive Hydrogel via a Host-Guest Interaction for 3D Cell Culture. ACS APPLIED MATERIALS & INTERFACES 2019; 11:7715-7724. [PMID: 30714715 DOI: 10.1021/acsami.8b19482] [Citation(s) in RCA: 58] [Impact Index Per Article: 11.6] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/20/2023]
Abstract
The study of cells responding to an electroconductive environment is impeded by the lack of a method, which would allow the encapsulation of cells in an extracellular matrix-like 3D electroactive matrix, and more challengingly, permit a simple mechanism to release cells for further characterization. Herein, we report a polysaccharide-based conductive hydrogel system formed via a β-cyclodextrin-adamantane host-guest interaction. Oxidative polymerization of 3,4-ethylenedioxythiophene (EDOT) in the presence of adamantyl-modified sulfated alginate (S-Alg-Ad) results in bio-electroconductive polymer PEDOT:S-Alg-Ad, which can form hydrogel with poly-β-cyclodextrin (Pβ-CD). The PEDOT:S-Alg-Ad/Pβ-CD hydrogels can be tuned on aspects of mechanical and electrical properties, exhibit self-healing feature, and are injectable. Electron microscopy suggested that the difference in stiffness and conductivity is associated with the nacre-like layered nanostructures when different sizes of PEDOT:S-Alg-Ad nanoparticles were used. Myoblast C2C12 cells were encapsulated in the conductive hydrogel and exhibited proliferation rate comparable to that in nonconductive S-Alg-Ad/Pβ-CD hydrogel. The cells could be released from the hydrogels by adding the β-CD monomer. Astonishingly, the conductive hydrogel can dramatically promote myotube-like structure formation, which is not in the non-electroconductive hydrogel. The ability to embed and release cells in an electroconductive environment will open new doors for cell culture and tissue engineering.
Collapse
Affiliation(s)
- Yong Xu
- B CUBE Center for Molecular Bioengineering , Technische Universität Dresden , 01307 Dresden , Germany
| | - Meiying Cui
- B CUBE Center for Molecular Bioengineering , Technische Universität Dresden , 01307 Dresden , Germany
| | - Panagiotis A Patsis
- B CUBE Center for Molecular Bioengineering , Technische Universität Dresden , 01307 Dresden , Germany
| | - Markus Günther
- Department of Biology, Institute of Botany, Faculty of Science , Technische Universität Dresden , 01062 Dresden , Germany
| | - Xuegeng Yang
- Institute of Fluid Dynamics , Helmholtz-Zentrum Dresden-Rossendorf (HZDR) , 01328 Dresden , Germany
| | - Kerstin Eckert
- Institute of Fluid Dynamics , Helmholtz-Zentrum Dresden-Rossendorf (HZDR) , 01328 Dresden , Germany
| | - Yixin Zhang
- B CUBE Center for Molecular Bioengineering , Technische Universität Dresden , 01307 Dresden , Germany
| |
Collapse
|
586
|
Wiegand C, Abel M, Hipler UC, Elsner P, Zieger M, Kurz J, Wendel HP, Stoppelkamp S. Hemostatic wound dressings: Predicting their effects by in vitro tests. J Biomater Appl 2019; 33:1285-1297. [PMID: 30791851 DOI: 10.1177/0885328219831095] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/15/2022]
Abstract
BACKGROUND Application of controlled in vitro techniques can be used as a screening tool for the development of new hemostatic agents allowing quantitative assessment of overall hemostatic potential. MATERIALS AND METHODS Several tests were selected to evaluate the efficacy of cotton gauze, collagen, and oxidized regenerated cellulose for enhancing blood clotting, coagulation, and platelet activation. RESULTS Visual inspection of dressings after blood contact proved the formation of blood clots. Scanning electron microscopy demonstrated the adsorption of blood cells and plasma proteins. Significantly enhanced blood clot formation was observed for collagen together with β-thromboglobulin increase and platelet count reduction. Oxidized regenerated cellulose demonstrated slower clotting rates not yielding any thrombin generation; yet, led to significantly increased thrombin-anti-thrombin-III complex levels compared to the other dressings. As hemostyptica ought to function without triggering any adverse events, induction of hemolysis, instigation of inflammatory reactions, and initiation of the innate complement system were also tested. Here, cotton gauze provoked high PMN elastase and elevated SC5b-9 concentrations. CONCLUSIONS A range of tests for desired and undesired effects of materials need to be combined to gain some degree of predictability of the in vivo situation. Collagen-based dressings demonstrated the highest hemostyptic properties with lowest adverse reactions whereas gauze did not induce high coagulation activation but rather activated leukocytes and complement.
Collapse
Affiliation(s)
- Cornelia Wiegand
- 1 Department of Dermatology, University Hospital Jena, Jena, Germany
| | - Martin Abel
- 2 Lohmann & Rauscher GmbH & Co. KG, Neuwied, Germany
| | | | - Peter Elsner
- 1 Department of Dermatology, University Hospital Jena, Jena, Germany
| | | | - Julia Kurz
- 4 Department of Thoracic, Cardiac and Vascular Surgery, University Hospital Tuebingen, Tuebingen, Germany
| | - Hans P Wendel
- 4 Department of Thoracic, Cardiac and Vascular Surgery, University Hospital Tuebingen, Tuebingen, Germany
| | - Sandra Stoppelkamp
- 4 Department of Thoracic, Cardiac and Vascular Surgery, University Hospital Tuebingen, Tuebingen, Germany
| |
Collapse
|
587
|
Deng Z, Hu T, Lei Q, He J, Ma PX, Guo B. Stimuli-Responsive Conductive Nanocomposite Hydrogels with High Stretchability, Self-Healing, Adhesiveness, and 3D Printability for Human Motion Sensing. ACS APPLIED MATERIALS & INTERFACES 2019; 11:6796-6808. [PMID: 30673228 DOI: 10.1021/acsami.8b20178] [Citation(s) in RCA: 221] [Impact Index Per Article: 44.2] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/24/2023]
Abstract
Self-healing, adhesive conductive hydrogels are of great significance in wearable electronic devices, flexible printable electronics, and tissue engineering scaffolds. However, designing self-healing hydrogels with multifunctional properties such as high conductivity, excellent mechanical property, and high sensitivity remains a challenge. In this work, the conductive self-healing nanocomposite hydrogels based on nanoclay (laponite), multiwalled carbon nanotubes (CNTs), and N-isopropyl acrylamide are presented. The presented nanocomposite hydrogels displayed good electrical conductivity, rapid self-healing and adhesive properties, flexible and stretchable mechanical properties, and high sensitivity to near-infrared light and temperature. These excellent properties of the hydrogels are demonstrated by the three-dimensional (3D) bulky pressure-dependent device, human activity monitoring device, and 3D printed gridding scaffolds. Good cytocompatibility of the conductive hydrogels was also evaluated with L929 fibroblast cells. These nanocomposite hydrogels have great potential for applications in stimuli-responsive electrical devices, wearable electronics, and so on.
Collapse
|
588
|
Guo B, Qu J, Zhao X, Zhang M. Degradable conductive self-healing hydrogels based on dextran-graft-tetraaniline and N-carboxyethyl chitosan as injectable carriers for myoblast cell therapy and muscle regeneration. Acta Biomater 2019; 84:180-193. [PMID: 30528606 DOI: 10.1016/j.actbio.2018.12.008] [Citation(s) in RCA: 188] [Impact Index Per Article: 37.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/21/2018] [Revised: 11/05/2018] [Accepted: 12/04/2018] [Indexed: 12/25/2022]
Abstract
Injectable conductive hydrogels have great potential as tissue engineering scaffolds and delivery vehicles for electrical signal sensitive cell therapy. In this work, we present the synthesis of a series of injectable electroactive degradable hydrogels with rapid self-healing ability and their potential application as cell delivery vehicles for skeletal muscle regeneration. Self-healable conductive injectable hydrogels based on dextran-graft-aniline tetramer-graft-4-formylbenzoic acid and N-carboxyethyl chitosan were synthesized at physiological conditions. The dynamic Schiff base bonds between the formylbenzoic acid and amine group from N-carboxyethyl chitosan endowed the hydrogels with rapid self-healing ability, which was verified by rheological test. Equilibrated swelling ratio, morphology, mechanical strength, electrochemistry and conductivity of the injectable hydrogels were fully investigated. The self-healable conductive hydrogels showed an in vivo injectability and a linear-like degradation behavior. Two different kinds of cells (C2C12 myoblasts and human umbilical vein endothelial cells (HUVEC)) were encapsulated in the hydrogels by self-healing effect. The L929 fibroblast cell culture results indicated the biocompatibility of the hydrogels. Moreover, the C2C12 myoblast cells were released from the conductive hydrogels with a linear-like profile. The in vivo skeletal muscle regeneration was also studied in a volumetric muscle loss injury model. All these data indicated that these biodegradable self-healing conductive hydrogels are potential candidates as cell delivery vehicles and scaffolds for skeletal muscle repair. STATEMENT OF SIGNIFICANCE: Injectable hydrogels with self-healing and electrical conductivity properties are excellent candidates as tissue-engineered scaffolds for myoblast cell therapy and skeletal muscle regeneration. The self-healing property of these hydrogels can prolong their lifespan. However, most of the reported conductive hydrogels are not degradable or do not have the self-healing ability. Herein, we synthesized antibacterial conductive self-healing hydrogels as a cell delivery carrier for cardiac cell therapy based on chitosan-grafted-tetraaniline hydrogels synthesized in our previous work. However, an acid solution was used to dissolve the polymers in that study, which may induce toxicity to cells. In this work, we synthesized a series of injectable electroactive biodegradable hydrogels with rapid self-healing ability composed of N-carboxyethyl chitosan (CECS) and dextran-graft-aniline oligomers, and these hydrogel precusor can dissolve in PBS solution of pH 7.4; we further demonstrated their potential application as cell delivery vehicles for skeletal muscle regeneration.
Collapse
|
589
|
Xu WK, Tang JY, Yuan Z, Cai CY, Chen XB, Cui SQ, Liu P, Yu L, Cai KY, Ding JD. Accelerated Cutaneous Wound Healing Using an Injectable Teicoplanin-loaded PLGA-PEG-PLGA Thermogel Dressing. CHINESE JOURNAL OF POLYMER SCIENCE 2019. [DOI: 10.1007/s10118-019-2212-5] [Citation(s) in RCA: 34] [Impact Index Per Article: 6.8] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
|
590
|
Wei Q, Chang Y, Ma G, Zhang W, Wang Q, Hu Z. One-pot preparation of double network hydrogels via enzyme-mediated polymerization and post-self-assembly for wound healing. J Mater Chem B 2019; 7:6195-6201. [DOI: 10.1039/c9tb01667h] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/20/2022]
Abstract
An enzymatic one-pot preparation method is used to prepare double network hydrogels for wound healing.
Collapse
Affiliation(s)
- Qingcong Wei
- Collaborative Innovation Center of Henan Province for Green Manufacturing of Fine Chemicals
- Key Laboratory of Green Chemical Media and Reactions
- Ministry of Education
- Henan Engineering Laboratory of Chemical Pharmaceutical and Biomedical Materials
- School of Chemistry and Chemical Engineering
| | - Yuqing Chang
- Collaborative Innovation Center of Henan Province for Green Manufacturing of Fine Chemicals
- Key Laboratory of Green Chemical Media and Reactions
- Ministry of Education
- Henan Engineering Laboratory of Chemical Pharmaceutical and Biomedical Materials
- School of Chemistry and Chemical Engineering
| | - Guanglei Ma
- Collaborative Innovation Center of Henan Province for Green Manufacturing of Fine Chemicals
- Key Laboratory of Green Chemical Media and Reactions
- Ministry of Education
- Henan Engineering Laboratory of Chemical Pharmaceutical and Biomedical Materials
- School of Chemistry and Chemical Engineering
| | - Weiwei Zhang
- Collaborative Innovation Center of Henan Province for Green Manufacturing of Fine Chemicals
- Key Laboratory of Green Chemical Media and Reactions
- Ministry of Education
- Henan Engineering Laboratory of Chemical Pharmaceutical and Biomedical Materials
- School of Chemistry and Chemical Engineering
| | - Qigang Wang
- School of Chemical Science and Engineering, Tongji University
- Shanghai
- P. R. China
| | - Zhiguo Hu
- Collaborative Innovation Center of Henan Province for Green Manufacturing of Fine Chemicals
- Key Laboratory of Green Chemical Media and Reactions
- Ministry of Education
- Henan Engineering Laboratory of Chemical Pharmaceutical and Biomedical Materials
- School of Chemistry and Chemical Engineering
| |
Collapse
|
591
|
Cao J, Xiao L, Shi X. Injectable drug-loaded polysaccharide hybrid hydrogels for hemostasis. RSC Adv 2019; 9:36858-36866. [PMID: 35539059 PMCID: PMC9075136 DOI: 10.1039/c9ra07116d] [Citation(s) in RCA: 42] [Impact Index Per Article: 8.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/05/2019] [Accepted: 11/02/2019] [Indexed: 12/25/2022] Open
Abstract
An injectable hydrogel with high adhesion strength, non-toxicity and low cost is highly desired for developing highly efficient hemostasis. In this study, we developed a new type of injectable adhesive drug loaded hydrogel utilizing the formation of Schiff-base linkages based on carboxymethyl chitosan (CMC), gelatin (GEL) and oxidized alginate (OSA). By optimizing the concentration of the biopolymers, the hybrid hydrogel (CMC-GEL/OSA) demonstrated an extremely fast gelation rate (30 s) and adhesive strength of 11 kPa. The freeze-dried hydrogel showed a three-dimensional porous structure. The hydrogel loaded with levofloxacin exhibited good antibacterial properties. Hemostatic performance of the hydrogel was demonstrated in a rat liver injury model. Compared with the untreated wound, the hemostasis time of the hydrogel treated wound was shortened by 84.2% and the blood loss was reduced by 82.2%. Thus, the proposed injectable hydrogel holds great potential applications for hemostasis, drug delivery and in other biomedical fields. A levofloxacin loaded CMC-GEL/OSA hydrogel was synthesized that exhibited good antibacterial properties, 84.2% shortened hemostatic time and 82.2% reduced blood loss.![]()
Collapse
Affiliation(s)
- Jinying Cao
- School of Resource and Environmental Science
- Key Laboratory for Biomass Resource Chemistry and Environmental Biotechnology of Hubei Province
- Wuhan University
- Wuhan
- China
| | - Ling Xiao
- School of Resource and Environmental Science
- Key Laboratory for Biomass Resource Chemistry and Environmental Biotechnology of Hubei Province
- Wuhan University
- Wuhan
- China
| | - Xiaowen Shi
- School of Resource and Environmental Science
- Key Laboratory for Biomass Resource Chemistry and Environmental Biotechnology of Hubei Province
- Wuhan University
- Wuhan
- China
| |
Collapse
|
592
|
Lei K, Tang L. Surgery-free injectable macroscale biomaterials for local cancer immunotherapy. Biomater Sci 2019; 7:733-749. [DOI: 10.1039/c8bm01470a] [Citation(s) in RCA: 30] [Impact Index Per Article: 6.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/31/2022]
Abstract
Up-to-date review and perspective on injectable macroscale biomaterials for local cancer immunotherapy.
Collapse
Affiliation(s)
- Kewen Lei
- Institute of Materials Science & Engineering
- École polytechnique fédérale de Lausanne (EPFL)
- Lausanne
- Switzerland
| | - Li Tang
- Institute of Materials Science & Engineering
- École polytechnique fédérale de Lausanne (EPFL)
- Lausanne
- Switzerland
- Institute of Bioengineering
| |
Collapse
|
593
|
Zhao YF, Zhao JY, Hu WZ, Ma K, Chao Y, Sun PJ, Fu XB, Zhang H. Synthetic poly(vinyl alcohol)–chitosan as a new type of highly efficient hemostatic sponge with blood-triggered swelling and high biocompatibility. J Mater Chem B 2019; 7:1855-1866. [PMID: 32255048 DOI: 10.1039/c8tb03181a] [Citation(s) in RCA: 60] [Impact Index Per Article: 12.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
Synthetic poly(vinyl alcohol)–chitosan as a new type of highly efficient hemostatic sponge with blood-triggered swelling and high biocompatibility.
Collapse
Affiliation(s)
- Yi-Fan Zhao
- Department of Anesthesiology
- Medical School of Chinese PLA
- Beijing 100853
- China
| | - Jing-Yu Zhao
- Department of Anesthesiology
- Medical School of Chinese PLA
- Beijing 100853
- China
| | - Wen-Zhi Hu
- Wound Healing Unit
- PLA General Hospital
- Beijing 100853
- China
| | - Kui Ma
- Wound Healing Unit
- PLA General Hospital
- Beijing 100853
- China
| | - Yong Chao
- Department of Medical engineering
- The First Affiliated Hospital of the PLA General Hospital
- Beijing 100048
- China
| | - Peng-Jun Sun
- Department of General Sugery
- The First Affiliated Hospital of the PLA General Hospital
- Beijing 100048
- China
| | - Xiao-Bing Fu
- Wound Healing Unit
- PLA General Hospital
- Beijing 100853
- China
| | - Hong Zhang
- Department of Anesthesiology
- PLA General Hospital
- Beijing 100853
- China
| |
Collapse
|
594
|
Sethuram L, Thomas J, Mukherjee A, Chandrasekaran N. Effects and formulation of silver nanoscaffolds on cytotoxicity dependent ion release kinetics towards enhanced excision wound healing patterns in Wistar albino rats. RSC Adv 2019; 9:35677-35694. [PMID: 35528070 PMCID: PMC9074428 DOI: 10.1039/c9ra06913e] [Citation(s) in RCA: 12] [Impact Index Per Article: 2.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/31/2019] [Accepted: 10/23/2019] [Indexed: 01/09/2023] Open
Abstract
Wound tissue regeneration and angiogenesis are dynamic processes that send physiological signals to the body. Thus, designing novel nanoscaffolds by understanding their surface modifications and toxicological response in a biological system with a potent anti-inflammatory response is a viable solution. In this respect, inspired by the surface chemistry, in the present work we focus on the chemical optimization of silver nanoscaffolds using surface cappings in order to understand their kinetic release behaviour in simulated wound fluids (SWF), to analyze their blood compatibility in human lymphocytes and erythrocytes and then embed them in a chitosan-agarose matrix (CAM) as a productive drug delivery system to evaluate in vivo excision wound tissue regeneration efficiency in Wistar rats. In this regard, polyvinyl alcohol capped silver nanocomposites (PVA-AgNPs) exhibit a dominant antibacterial efficacy with the sustained and controlled release of silver ions and percentage cell mortality and percentage hemolysis of only 10% and 16% compared with uncapped-AgNPs or silver bandaids (SBDs). Also, PVA-AgNP impregnated CAM (PVA-CAM) shows positive effects through their anti-inflammatory and angiogenic properties, with a nearly 95% healing effect within 9 days. The complete development of collagen and fibroblast constituents was also monitored in PVA-CAM by hematoxylin & eosin (H & E) and Masson trichrome (MT) staining. These results provide a clear insight into the development of a potent therapeutic formulation using CAM as a scaffold incorporated with surface functionalized PVA-AgNPs as a bioeffective and biocompatible polymer for the fabrication of efficacious silver wound dressing scaffolds in clinical practice. A sustained and controlled release of silver ions from AgNPs is driven by greater percentage of wound contraction with minimal cytotoxic behavioural rates and effective antibacterial activity.![]()
Collapse
Affiliation(s)
| | - John Thomas
- Centre for Nanobiotechnology
- VIT University
- Vellore
- India
| | | | | |
Collapse
|
595
|
Tian T, Wang J, Wu S, Shao Z, Xiang T, Zhou S. A body temperature and water-induced shape memory hydrogel with excellent mechanical properties. Polym Chem 2019. [DOI: 10.1039/c9py00502a] [Citation(s) in RCA: 17] [Impact Index Per Article: 3.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/10/2023]
Abstract
A body temperature and water-induced shape memory hydrogel with excellent mechanical properties was prepared by crosslinking dopamine-terminated tetra-poly(ethylene glycol) with an oxidation reaction.
Collapse
Affiliation(s)
- Tian Tian
- Key Laboratory of Advanced Technologies of Materials
- Ministry of Education
- School of Materials Science and Engineering
- Southwest Jiaotong University
- Chengdu 610031
| | - Jiao Wang
- Key Laboratory of Advanced Technologies of Materials
- Ministry of Education
- School of Materials Science and Engineering
- Southwest Jiaotong University
- Chengdu 610031
| | - Shanshan Wu
- Key Laboratory of Advanced Technologies of Materials
- Ministry of Education
- School of Materials Science and Engineering
- Southwest Jiaotong University
- Chengdu 610031
| | - Zijian Shao
- Key Laboratory of Advanced Technologies of Materials
- Ministry of Education
- School of Materials Science and Engineering
- Southwest Jiaotong University
- Chengdu 610031
| | - Tao Xiang
- Key Laboratory of Advanced Technologies of Materials
- Ministry of Education
- School of Materials Science and Engineering
- Southwest Jiaotong University
- Chengdu 610031
| | - Shaobing Zhou
- Key Laboratory of Advanced Technologies of Materials
- Ministry of Education
- School of Materials Science and Engineering
- Southwest Jiaotong University
- Chengdu 610031
| |
Collapse
|
596
|
Abstract
Smart polymers that are capable of controlled shape transformations under external stimuli have attracted significant attention in the recent years due to the resemblance of this behavior to the biological intelligence observed in nature. In this review, we focus on the recent progress in the field of shape-morphing polymers, highlighting their most promising applications in the biomedical field.
Collapse
Affiliation(s)
- Alina Kirillova
- Department of Mechanical Engineering and Materials Science
- Edmund T. Pratt Jr. School of Engineering
- Duke University
- Durham
- USA
| | - Leonid Ionov
- Faculty of Engineering Science
- University of Bayreuth
- 95440 Bayreuth
- Germany
| |
Collapse
|
597
|
Nguyen MH, Lee SE, Tran TT, Bui CB, Nguyen THN, Vu NBD, Tran TT, Nguyen THP, Nguyen TT, Hadinoto K. A simple strategy to enhance the in vivo wound-healing activity of curcumin in the form of self-assembled nanoparticle complex of curcumin and oligochitosan. MATERIALS SCIENCE & ENGINEERING. C, MATERIALS FOR BIOLOGICAL APPLICATIONS 2018; 98:54-64. [PMID: 30813056 DOI: 10.1016/j.msec.2018.12.091] [Citation(s) in RCA: 19] [Impact Index Per Article: 3.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 06/13/2018] [Revised: 12/11/2018] [Accepted: 12/25/2018] [Indexed: 10/27/2022]
Abstract
While the wound healing activity of curcumin (CUR) has been well-established, its clinical effectiveness remains limited due to the inherently low aqueous CUR solubility, resulting in suboptimal CUR exposure in the wound sites. Previously, we developed high-payload amorphous nanoparticle complex (or nanoplex) of CUR and chitosan (CHI) capable of CUR solubility enhancement by drug-polyelectrolyte complexation. The CUR-CHI nanoplex, however, exhibited poor colloidal stability due to its strong agglomeration tendency. Herein we hypothesized that the colloidal stability could be improved by replacing CHI with its oligomers (OCHI) owed to the better charge distribution in OCHI. The effects of key parameters in drug-polyelectrolyte complexation (i.e. pH, salt inclusion, CUR concentration, and OCHI/CUR charge ratio) on the physical characteristics and preparation efficiency of the CUR-OCHI nanoplex produced were investigated. The in vivo wound healing efficacy of the CUR-OCHI nanoplex and its cytotoxicity towards human keratinocytes cells were examined. The results showed that CUR-OCHI nanoplex exhibited prolonged colloidal stability (72 h versus <24 h for the CUR-CHI nanoplex). At the optimal condition, the CUR-OCHI nanoplex (without ultrasonication) exhibited size, zeta potential, and CUR payload of ≈140 nm, 20 mV, and 78% (w/w), respectively. The nanoplex preparation was simple yet robust at nearly 100% CUR utilization rate. The CUR-OCHI nanoplex exhibited superior wound healing efficacy to the native CUR with wound closure of >90% after 7 days versus 9 days for the native CUR resulting in smaller scars, attributed to its generation of high CUR concentration in the wound sites.
Collapse
Affiliation(s)
- Minh-Hiep Nguyen
- Radiation Technology Center, Nuclear Research Institute, Dalat City, Viet Nam
| | - Suen Ern Lee
- School of Chemical and Biomedical Engineering, Nanyang Technological University, Singapore
| | - The-Thien Tran
- School of Chemical and Biomedical Engineering, Nanyang Technological University, Singapore
| | - Chi-Bao Bui
- Center for Molecular Biomedicine, University of Medicine and Pharmacy at Ho Chi Minh City, Ho Chi Minh, Viet Nam
| | | | - Ngoc-Bich-Dao Vu
- Radiation Technology Center, Nuclear Research Institute, Dalat City, Viet Nam
| | - Thi-Thuy Tran
- Radiation Technology Center, Nuclear Research Institute, Dalat City, Viet Nam
| | | | - Thi-Thu Nguyen
- Center for Research & Production of Radioisotope, Nuclear Research Institute, Dalat City, Viet Nam
| | - Kunn Hadinoto
- School of Chemical and Biomedical Engineering, Nanyang Technological University, Singapore.
| |
Collapse
|
598
|
Hu Z, Lu S, Cheng Y, Kong S, Li S, Li C, Yang L. Investigation of the Effects of Molecular Parameters on the Hemostatic Properties of Chitosan. Molecules 2018; 23:E3147. [PMID: 30513622 PMCID: PMC6321099 DOI: 10.3390/molecules23123147] [Citation(s) in RCA: 41] [Impact Index Per Article: 6.8] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/29/2018] [Revised: 11/25/2018] [Accepted: 11/29/2018] [Indexed: 01/19/2023] Open
Abstract
Hemorrhea is one of the major problems in war, trauma care, and surgical operation that threaten the life of the injured and patients. As a novel polymeric hemostatic agent, biodegradable chitosan can stop bleeding through a variety of approaches. In this paper, chitosan with various molecular parameters was prepared from chitin as raw material through deacetylation, oxidative degradation, hydrophilic modification, and salt formation reactions. The influence of different polymer parameters on the hemostatic effects of chitosan was investigated by in vitro coagulation time and dynamic coagulation assay. The results showed that when the molecular weights were high (10⁵⁻10⁶) and approximate, the coagulation effect of chitosan improved with a decrease of the deacetylation degree and achieved a prominent level in a moderate degree of deacetylation (68.36%). With the same degree of deacetylation, the higher the molecular weight of chitosan, the better the procoagulant effect. The substituent derivatives and acid salts of chitosan showed significant procoagulant effects, especially the acid salts of chitosan. In addition, the hemostasis mechanism of chitosan with various parameters was preliminarily explored by analyzing the plasma recalcification time (PRT). The efforts in this paper laid a basis for further study of the structure⁻activity relationship and the mechanism of chitosan hemostasis.
Collapse
Affiliation(s)
- Zhang Hu
- Faculty of Chemistry and Environmental Science, Guangdong Ocean University, Zhanjiang 524088, China.
| | - Sitong Lu
- Faculty of Chemistry and Environmental Science, Guangdong Ocean University, Zhanjiang 524088, China.
| | - Yu Cheng
- Faculty of Chemistry and Environmental Science, Guangdong Ocean University, Zhanjiang 524088, China.
| | - Songzhi Kong
- Faculty of Chemistry and Environmental Science, Guangdong Ocean University, Zhanjiang 524088, China.
| | - Sidong Li
- Faculty of Chemistry and Environmental Science, Guangdong Ocean University, Zhanjiang 524088, China.
| | - Chengpeng Li
- Faculty of Chemistry and Environmental Science, Guangdong Ocean University, Zhanjiang 524088, China.
| | - Lei Yang
- Faculty of Chemistry and Environmental Science, Guangdong Ocean University, Zhanjiang 524088, China.
| |
Collapse
|
599
|
Qin H, Wang J, Wang T, Gao X, Wan Q, Pei X. Preparation and Characterization of Chitosan/β-Glycerophosphate Thermal-Sensitive Hydrogel Reinforced by Graphene Oxide. Front Chem 2018; 6:565. [PMID: 30555817 PMCID: PMC6282227 DOI: 10.3389/fchem.2018.00565] [Citation(s) in RCA: 45] [Impact Index Per Article: 7.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/29/2018] [Accepted: 10/31/2018] [Indexed: 02/05/2023] Open
Abstract
Thermal-sensitive hydrogel based on chitosan (CS) and β-glycerophosphate (GP) has shown good biocompatibility and biodegradability. But the application of such hydrogel is limited due to its poor mechanical property. Recently, graphene oxide(GO) is widely used as a reinforcement agent to prepare nanocomposites with different polymers for improving the properties of the materials. In this study, CS/GP-based hydrogels with different weight ratio of GO/CS (0.5, 1, 2%) were fabricated. The gelation time of the hydrogels at body temperature was evaluated by tube inverting method. The gelation process during heating was monitored by rheological measurement. The morphology, porosities, chemical structure, swelling properties of the lyophilized hydrogels were investigated by scanning electron microscopy, liquid displacement method, Fourier transform infrared spectroscopy and gravimetric method. Mechanical property of the hydrogels was analyzed by rheological measurement and unconfined compression test. MC3T3-E1 mouse pre-osteoblast cell line was used to assess the biological properties of the hydrogels. The results obtained from those assessments revealed that the addition of GO into CS/GP improved the properties of the prepared hydrogels without changing the high porous and interconnected microstructure and swelling ability of the hydrogels. The gelation time at body temperature was significantly reduced by nearly 20% with the addition of small amount of GO (0.5% weight ratio of CS). The mechanical properties of the hydrogels containing GO were improved significantly over that of CS/GP. The storage (G′)/loss (G″) moduli of the hydrogels with GO were 1.12 to 1.69 times that of CS/GP at the gelling temperature. The Young's modulus of 0.5%GO/CS/GP hydrogel is 1.76 times that of CS/GP. Moreover, the 0.5%GO/CS/GP hydrogel revealed remarkable biological affinity such as cellular attachment, viability and proliferation. All of these results suggest that 0.5%GO/CS/GP hydrogel has great potential for practical application in biomedical field.
Collapse
Affiliation(s)
- Han Qin
- State Key Laboratory of Oral Diseases, Department of Prosthodontics, National Clinical Research Center for Oral Diseases, West China Hospital of Stomatology, Sichuan University, Chengdu, China
| | - Jian Wang
- State Key Laboratory of Oral Diseases, Department of Prosthodontics, National Clinical Research Center for Oral Diseases, West China Hospital of Stomatology, Sichuan University, Chengdu, China
| | - Tong Wang
- State Key Laboratory of Oral Diseases, Department of Prosthodontics, National Clinical Research Center for Oral Diseases, West China Hospital of Stomatology, Sichuan University, Chengdu, China
| | - Xiaomeng Gao
- State Key Laboratory of Oral Diseases, Department of Prosthodontics, National Clinical Research Center for Oral Diseases, West China Hospital of Stomatology, Sichuan University, Chengdu, China
| | - Qianbing Wan
- State Key Laboratory of Oral Diseases, Department of Prosthodontics, National Clinical Research Center for Oral Diseases, West China Hospital of Stomatology, Sichuan University, Chengdu, China
| | - Xibo Pei
- State Key Laboratory of Oral Diseases, Department of Prosthodontics, National Clinical Research Center for Oral Diseases, West China Hospital of Stomatology, Sichuan University, Chengdu, China
| |
Collapse
|
600
|
Qu J, Zhao X, Liang Y, Zhang T, Ma PX, Guo B. Antibacterial adhesive injectable hydrogels with rapid self-healing, extensibility and compressibility as wound dressing for joints skin wound healing. Biomaterials 2018; 183:185-199. [DOI: 10.1016/j.biomaterials.2018.08.044] [Citation(s) in RCA: 877] [Impact Index Per Article: 146.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/03/2018] [Revised: 08/12/2018] [Accepted: 08/20/2018] [Indexed: 12/25/2022]
|