电磁传导性水凝胶被广泛应用于组织工程、软致动器、药物传递、电磁干扰屏蔽等方面,在生物医学、传感器等领域有着巨大的应用潜力。采用仿贻贝微凝胶氧化还原引发的方式构建具有电磁响应的水凝胶网络。首先采用紫外光微乳液聚合的方法制备仿贻贝微凝胶;其次,以仿贻贝微凝胶和纳米Fe3O4为引发体系,以丙烯酰胺和4-苯乙烯磺酸钠作为小分子单体,以二丙烯酸聚乙二醇酯作为交联剂,采用氧化还原引发聚合的方法构建水凝胶体系,并对水凝胶进行结构表征。结果表明,制备的水凝胶具有一定的弹性且具有电磁传导性能,在柔性可穿戴器件之中有潜在的应用价值。
Hydrogels with electromagnetic conductivity are widely used in tissue engineering,soft actuators,drug delivery,electromagnetic interference shielding and other fields.They have great potential application in biomedical,sensor and other areas.Therefore,we used mussel-inspired microgel to construct an electromagnetic responsive hydrogel by redox initiation method.Firstly,we prepared a mussel-inspired microgel by microemulsion polymerization under UV-initiated.Secondly,we used mussel-inspired microgel and nano-Fe3O4 as the initiating system,acrylamide and sodium 4-phenylethen sulfonate as the small molecule monomers,and polyethylene glycol diacrylate as the crosslinking agent to construct the hydrogel system by redox-initiated polymerization method.Finally,we characterized the structure of the hydrogel.The results showed that the prepared hydrogel exhibited certain elasticity and electromagnetic conductivity,which has potential application value in flexible wearable devices.
[1] Ahmed E M.Hydrogel:preparation,characterization,and applications:a review[J].Journal of Advanced Research,2015,6(2):105-121.
[2] Kopecek J,Yang J Y.Revie-hydrogels as smart biomaterials[J].Polymer International,2007,56(9):1078-1098.
[3] Joseph J G.Polymeric gels and hydrogels for biomedical and pharmaceutical applications[J].Polymers for Advanced Technologies,2010,21:27-47.
[4] 张琳,周天啸,王奔,等.Fmoc-F多肽水凝胶对丁香精油的控释作用研究[J].食品与机械,2016,32(9):8-11.
[5] Herber S,Olthuis W,Bergveld P,et al.Exploitation of a pH-sensitive hydrogel disk for CO2 detection[J].Sensors and Actuators B,2004,103(1):284-289.
[6] Distler T,Boccaccini A R.3D printing of electrically conductive hydrogels for tissue engineering and biosensors:a review[J].Acta Biomaterialia,2020,101:1-13.
[7] Kim S H,Jung S,Yoon I S,et al.Ultrastretchable conductor fabricated on skin-like hydrogel-elastomer hybrid substrates for skin electronics[J].Advanced Materials,2018,30(26):1800109.
[8] Kook G,Jeong S,Kim M K,et al.Fabrication of highly dense silk fibroin biomemristor array and its resistive switching characteristics[J].Advanced Materials Technologies,2020,5(4):1900991.
[9] Pan S W,Zhang F L,Cai P Q,et al.Mechanically interlocked hydrogel-elastomer hybrids for on-skin electronics[J].Advanced Functional Materials,2020,30(29):1909540.
[10] Dautta M,Alshetaiwi M,Escobar A,et al.Multi-functional hydrogel-interlayer RF/NFC resonators as a versatile platform for passive and wireless biosensing[J].Advanced Electronic Materials,2020,6(4):1901311.
[11] Ding H Y,Xin Z Q,Yang Y Y,et al.Ultrasensitive,low-vol-tage operational,and asymmetric ionic sensing hydrogel for multipurpose applications[J].Advanced Functional Materials,2020,30(12):1909616.
[12] Khazaeli A,Godbille C G,Barz D P J.A novel flexible hybrid battery-supercapacitor based on a self-assembled vanadium-graphene hydrogel[J].Advanced Functional Materials,2020,30(21):1910738.
[13] Liu Y D,Lu N,Liu F Y,et al.Highly strong and tough double-crosslinked hydrogel electrolyte for flexible supercapacitors[J].Chem Electro Chem,2020,7(4):1007-1015.
[14] Yang J,Li Y,Yu X,et al.Tough and conductive dual physically cross-linked hydrogels for wearable sensors[J].Ind Eng Chem Res,2019,58(36):17001-17009.
[15] Zheng L Z,Su X J,Lai X J,et al.Conductive superhydrophobic cotton fabrics via layer-by-layer assembly of carbon nanotubes for oil-water separation and human motion detection[J].Mater Lett,2019,253:230-233.
[16] Li L,Pan L J,Ma Z,et al.All inkjet-printed amperometric multiplexed biosensors based on nanostructured conductive hydrogel electrodes[J].Nano Lett,2018,18:3322-3327.
[17] Kim C C,Lee H H,Hwan O K,et al.Highly stretchable,transparent ionic touch panel[J].Science,2016,353(6300):682-687.
[18] Li L,Zhang Y,Lu H Y,et al.Cryopolymerization enables anisotropic polyaniline hybrid hydrogels with superelasticity and highly deformation-tolerant electrochemical energy storage[J].Nature Communications,2020,11(1):62.
[19] Zeng J,Dong L B,Sha W X,et al.Highly stretchable,compressible and arbitrarily deformable all-hydrogel soft supercapacitors[J].Chemical Engineering Journal,2020,383:123098.
[20] Wang H F,Wu J,Qiu J,et al.In situ formation of a renewable cellulose hydrogel electrolyte for high-performance flexible all-solid-state asymmetric supercapacitors[J].Sustainable Energy & Fuels,2019,3(11):3109-3115.
[21] Hsu H H,Liu Y Q,Wang Y,et al.Mussel-inspired autonomously self-healable all-in-one supercapacitor with biocompatible hydrogel[J].ACS Sustainable Chemistry & Engineering,2020,8(18):6935-6948.
[22] Wang S T,Guo G Q,Lu X X,et al.Facile soaking strategy toward simultaneously enhanced conductivity and toughness of self-healing composite hydrogels through constructing multiple noncovalent interactions[J].ACS Appl Mater Interfaces,2018,10(22):19133-19142.
[23] Huang Z B,Yin G F,Liao X M,et al.Conducting polypyrrole in tissue engineering applications[J].Front Mater Sci,2014,8(1):39-45.
[24] Stejskalj,Bober P,Trchova M,et al.Polyaniline cryogels supported with poly(vinyl alcohol):soft and conducting[J].Macromolecules,2017,50(3):972-978.
[25] Nezakati T,Seifalian A,Tan A,et al.Conductive polymers:opportunities and challenges in biomedical applications[J].Chem Rev,2018,118(14):6766-6843.
[26] Huebsch N,Kearney C J,Zhao X H,et al.Ultrasound-triggered disruption and self-healing of reversibly cross-linked hydrogels for drug delivery and enhanced chemotherapy[J].Sci,2014,111(27):9762-9767.
基金资助
超分子结构与材料国家重点实验室开放课题(sklssm2022037)
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