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Graphene Oxide‐Templated Conductive and Redox‐Active Nanosheets Incorporated Hydrogels for Adhesive Bioelectronics
Advanced Functional Materials ( IF 18.5 ) Pub Date : 2019-11-18 , DOI: 10.1002/adfm.201907678 Donglin Gan 1 , Ziqiang Huang 1 , Xiao Wang 1 , Lili Jiang 2 , Chaoming Wang 3 , Mingyu Zhu 4 , Fuzeng Ren 4 , Liming Fang 5 , Kefeng Wang 6 , Chaoming Xie 1 , Xiong Lu 1
Advanced Functional Materials ( IF 18.5 ) Pub Date : 2019-11-18 , DOI: 10.1002/adfm.201907678 Donglin Gan 1 , Ziqiang Huang 1 , Xiao Wang 1 , Lili Jiang 2 , Chaoming Wang 3 , Mingyu Zhu 4 , Fuzeng Ren 4 , Liming Fang 5 , Kefeng Wang 6 , Chaoming Xie 1 , Xiong Lu 1
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2D conductive nanosheets are central to electronic applications because of their large surface areas and excellent electronic properties. However, tuning the multifunctions and hydrophilicity of conductive nanosheets are still challenging. Herein, a green strategy is developed for fabricating conductive, redox‐active, water‐soluble nanosheets via the self‐assembly of poly(3,4‐ethylenedioxythiophene) (PEDOT) on the polydopamine‐reduced and sulfonated graphene oxide (PSGO) template. The conductivity and hydrophilicity of nanosheets are highly improved by PSGO. The nanosheets are redox active due to the abundant catechol groups and can be used as versatile nanofillers in developing conductive and adhesive hydrogels. The nanosheets create a mussel‐inspired redox environment inside the hydrogel networks and endow the hydrogel with long‐term and repeatable adhesiveness. This hydrogel is biocompatible and can be implanted for biosignals detection in vivo. This mussel‐inspired strategy for assembling 2D nanosheets can be adapted for producing diverse multifunctional nanomaterials, with various potential applications in bioelectronics.
中文翻译：
氧化石墨烯模板化的导电和氧化还原活性纳米片结合了用于胶粘剂生物电子学的水凝胶
2D导电纳米片因其较大的表面积和出色的电子性能而成为电子应用的中心。然而，调节导电纳米片的多功能性和亲水性仍然具有挑战性。本文提出了一种绿色策略，通过在聚多巴胺还原和磺化氧化石墨烯（PSGO）模板上自组装聚（3,4-乙撑二氧噻吩）（PEDOT）来制造导电的，具有氧化还原活性的水溶性纳米片。PSGO大大提高了纳米片的电导率和亲水性。纳米片由于具有丰富的儿茶酚基团而具有氧化还原活性，可用作开发导电性和粘合性水凝胶的多功能纳米填料。纳米片在水凝胶网络内部创建了贻贝启发的氧化还原环境，并使水凝胶具有长期且可重复的粘合性。这种水凝胶具有生物相容性，可以植入体内进行生物信号检测。这种贻贝启发的2D纳米片组装策略可适用于生产多种多功能纳米材料，并在生物电子学中具有多种潜在应用。
更新日期：2020-01-29
中文翻译：
氧化石墨烯模板化的导电和氧化还原活性纳米片结合了用于胶粘剂生物电子学的水凝胶
2D导电纳米片因其较大的表面积和出色的电子性能而成为电子应用的中心。然而，调节导电纳米片的多功能性和亲水性仍然具有挑战性。本文提出了一种绿色策略，通过在聚多巴胺还原和磺化氧化石墨烯（PSGO）模板上自组装聚（3,4-乙撑二氧噻吩）（PEDOT）来制造导电的，具有氧化还原活性的水溶性纳米片。PSGO大大提高了纳米片的电导率和亲水性。纳米片由于具有丰富的儿茶酚基团而具有氧化还原活性，可用作开发导电性和粘合性水凝胶的多功能纳米填料。纳米片在水凝胶网络内部创建了贻贝启发的氧化还原环境，并使水凝胶具有长期且可重复的粘合性。这种水凝胶具有生物相容性，可以植入体内进行生物信号检测。这种贻贝启发的2D纳米片组装策略可适用于生产多种多功能纳米材料，并在生物电子学中具有多种潜在应用。
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