水凝胶具有类细胞外基质的内在结构及理化特性,可增强细胞间交流,促进组织再生,在组织工程领域引起了广泛关注,已成为最有潜力的生物活性材料。石墨烯具有独特的导电、导热和力学性能,将石墨烯引入水凝胶基质构建石墨烯基导电水凝胶,大幅拓展了传统水凝胶的应用范围。近年来,石墨烯基导电水凝胶已广泛应用于组织工程、柔性传感器、超级电容器等领域。总结了现阶段石墨烯基导电水凝胶的制备方法及其在皮肤、骨、心肌、神经、骨骼肌修复领域的研究进展,以期为未来组织工程的相关研究提供借鉴。
Hydrogels have the intrinsic structure and physicochemical properties similar to extracellular matrix,which can enhance the communication between cells and promote tissue regeneration.Currently,hydrogels have attracted wide attention in the field of tissue engineering,and have become the most potential bioactive materials.Graphene has unique electrical,thermal and mechanical properties.The introduction of graphene into hydrogel matrix to construct graphene-based conductive hydrogels greatly expands the application range of traditional hydrogels.In recent years,graphene-based conductive hydrogels have been widely used in tissue engineering,flexible sensors,supercapacitors and other fields.In this paper,the preparation methods of graphene-based conductive hydrogels and their research progress in skin,bone,myocardium,nerve and skeletal muscle repair were summarized,aiming to provide a reference for the future research related to tissue engineering.
[1] Deng Z X,Yu R,Guo B L.Stimuli-responsive conductive hydrogels:design,properties,and applications[J].Materials Chemistry Frontiers,2021,5(5):2092-2123.
[2] Quan Q Y,Zhao T Y,Luo Z,et al.Antifreezing,antidrying,and conductive hydrogels for electronic Sk n applications at ultralow temperatures[J].ACS Applied Materials & Interfaces,2024,16(16):21133-21145.
[3] Himori S,Sakata T.Wireless electrochemical detection of enzyme-driven conductive hydrogel motor for autonomous mobile biosensor[J].Sensors and Actuators B:Chemical,2023,393:134239.
[4] Sardana S,Gupta A,Singh K,et al.Conducting polymer hydrogel based electrode materials for supercapacitor applications[J].Journal of Energy Storage,2022,45:103510.
[5] Yin H Y,Liu F F,Abdiryim T,et al.Sodium carboxymethyl cellulose and MXene reinforced multifunctional conductive hydrogels for multimodal sensors and flexible supercapacitors[J].Carbohydrate Polymers,2024,327:121677.
[6] Yu C J,Yao F L,Li J J.Rational design of injectable conducting polymer-based hydrogels for tissue engineering[J].Acta Biomaterialia,2022,139:4-21.
[7] Yang S,Zhang C Y,Yong L,et al.Construction of PNIPAM/graphene oxide loaded with silver nanoparticles interpenetrating intelligent hydrogels for antibacterial dressing[J].Polymer Bulletin,2024,81(14):13027-13044.
[8] Verdanova M,Rezek B,Ukraintsev E,et al.Nanocarbon allotropes—graphene and nanocrystalline diamond—promote cell proliferation[J].Small,2016,12(18):2499-2509.
[9] Mauri E,Salvati A,Cataldo A,et al.Graphene-laden hydrogels:a strategy for thermally triggered drug delivery[J].Materials Science and Engineering:C,2021,118:111353.
[10] Balu R,Reeder S,Knott R,et al.Tough photocrosslinked silk fibroin/graphene oxide nanocomposite hydrogels[J].Langmuir,2018,31(34):9238-9225.
[11] Zhao Y Y,Liu Y,Kang S Q,et al.Peripheral nerve injury repair by electrical stimulation combined with graphene-based scaffolds[J].Frontiers in Bioengineering and Biotechnology,2024,12:1345163.
[12] Kim B,Park J,Lee J,et al.Conductive double-network hydrogel composed of sodium alginate,polyacrylamide,and reduced graphene oxide[J].Korean Journal of Chemical Engineering,2023,2(40):352-360.
[13] Chen X L,Ranjan V D,Liu S J,et al.In situ formation of 3D conductive and cell-laden graphene hydrogel for electrically regulating cellular behavior[J].Macromolecular Bioscience,2021,21(4):2000374.
[14] Ulutürk C,Alemdar N.Production of reduced graphene oxide-based electrically conductive hydrogel by using modified chitosan[J].Journal of Applied Polymer Science,2019,136(40):48008.
[15] Li B G,Wu C,Wang C Y,et al.Fabrication of tough,self-recoverable,and electrically conductive hydrogels by in situ reduction of poly(acrylic acid) grafted grapheneoxide in polyacrylamide hydrogel matrix[J].Journal of Applied Polymer Science,2019,23(137):48781.
[16] Wang L M,Yu Y R,Zhao X W,et al.A biocompatible self-powered piezoelectric poly(vinyl alcohol)-based hydrogel for diabetic wound repair[J].ACS Applied Materials & Interfaces,2022,41(14):46273-46289.
[17] Dou Y Y,Zhang Y W,Zhang S,et al.Multi-functional conductive hydrogels based on heparin-polydopamine complex reduced graphene oxide for epidermal sensing and chronic wound healing[J].Journal of Nanobiotechnology,2023,1(21):343.
[18] Ou X L,Guan L,Guo W L,et al.Graphene oxide-based injectable conductive hydrogel dressing with immunomodulatory for chronic infected diabetic wounds[J].Materials & Design,2022,224:111284.
[19] Zhang C G,Liu W W,CAO C,et al.Modulating surface potential by controlling the β Phase content in poly(vinylidene fluoridetrifluoroethylene) membranes enhances bone regeneration[J].Advanced Healthcare Materials,2018,7(11):1701466.
[20] Zigman T,Davila S,Dobric I,et al.Intraoperative measurement of bone electrical potential:a piece in the puzzle of understanding fracture healing[J].Injury,2013,44:S16-S19.
[21] Jing W,Huang Y Q,Wei P F,et al.Roles of electrical stimulation in promoting osteogenic differentiation of BMSCs on conductive fibers[J].Journal of Biomedical Materials Research Part A,2019,107(7):1443-1454.
[22] Li Y W,He J H,Zhou J P,et al.A conductive photothermal non-swelling nanocomposite hydrogel patchaccelerating bone defect repair[J].Biomaterials Science,2022,5(10):1326-1341.
[23] Li Y Z,Yang L,Hou Y,et al.Polydopamine-mediated graphene oxide and nanohydroxyapatite-incorporated conductive scaffold with an immunomodulatory ability accelerates periodontal bone regeneration in diabetes[J].Bioactive Materials,2022,18:213-227.
[24] Tariq U,Gupta M,Pathak S,et al.Role of biomaterials in cardiac repair and regeneration:therapeutic intervention for myocardial infarction[J].ACS Biomaterials Science & Engineering,2022,8(8):3271-3298.
[25] Wang L Y,Liu Y Q,Ye G L,et al.Injectable and conductive cardiac patches repair infarcted myocardium in rats and minipigs[J].Nature Biomedical Engineering,2021,5(10):1157-1173.
[26] Li X P,Qu K Y,Zhou B,et al.Electrical stimulation of neonatal rat cardiomyocytes using conductive polydopamine-reduced graphene oxide-hybrid hydrogels for constructing cardiac microtissues[J].Colloids and Surfaces B:Biointerfaces,2021,205:111844.
[27] Zhou J,Yang X N,Liu W,et al.Injectable OPF/graphene oxide hydrogels provide mechanical support and enhance cell electrical signaling after implantation into myocardial infarct[J].Theranostics,2018,8(12):3317-3330.
[28] Anno MTD,Wang X X,Onorati M,et al.Human neuroepithelial stem cell regional specificity enables spinal cord repair through a relay circuit[J].Nature Communications,2018,9(1):3419.
[29] Gao Y S,Dai C L,Zhang M,et al.Biomimetic silk fibroin hydrogel for enhanced peripheralnerve regeneration:synergistic effects of graphene oxide and fibroblast exosom[J].Advanced Functional Materials,2024,34:2314610.
[30] Yang S H,Pan J,Fu H J,et al.Preparation of carbon-based conductive hydrogels and their potential for promoting nerve regeneration[J].Advanced Composites and Hybrid Materials,2025,8(2):185.
[31] Karimi-Soflou R,Shabani I,Karkhaneh A.Enhanced neural differentiation by applying electrical stimulation utilizing conductive and antioxidant alginate-polyp yrrole/poly-l-lysine hydrogels[J].International Journal of Biological Macromolecules,2023,237:124063.
[32] Ye J J,Pan X H,Wen Z F,et al.Injectable conductive hydrogel remodeling microenvironment and mimicking neuroelectric signal transmission after spinal cord injury[J].Journal of Colloid And Interface Science,2024,668,646-657.
[33] Chen L G,Wang W S,Li Z F,et al.Conducting molybdenum sulfide/graphene oxide/polyvinyl alcohol nanocomposite hydrogel for repairing spinal cord injury[J].Journal of Nanobiotechnology,2022,1(20):210.
[34] Gao Y S,Dai C L,Zhang M,et al.Biomimetic silk fibroin hydrogel for enhanced peripheralnerve regeneration:synergistic effects of graphene oxide and fibroblast exosom[J].Advanced Functional Materials,2024,34:2314610.
[35] Park J,Jeon J,Kim B,et al.Electrically conductive hydrogel nerve guidance conduits for peripheral erve regeneration[J].Advanced Functional Materials,2020,30(39):2003759.
[36] Park J,Choi J H,Kim S,et al.Micropatterned conductive hydrogels as multifunctional muscle-mimicking biomaterials:graphene-incorporated hydrogels directly patterned with femtosecond laser ablation[J].Acta Biomaterialia,2019,97:141-153.
[37] Aparicio-Collado J L,García-San-Martín N,Molina-Mateo J,et al.Electroactive calcium-alginate/polycaprolactone/reduced graphene oxide nanohybrid hydrogels for skeletal muscle tissue engineering[J].Colloids and Surfaces B:Biointerfaces,2022,214:112455.
基金资助
重庆理工大学研究生教育高质量发展行动计划资助成果(gzlcx20242061);四川大学高等教育教学改革工程(SCU10257)