Shape memory laser-induced graphene electrode based on polybenzoxazine-co-epoxy coated fabric and its electrochemical sensor application

IF 5.3 3区材料科学 Q2 MATERIALS SCIENCE, MULTIDISCIPLINARY

Materials Research Bulletin Pub Date : 2025-06-02 DOI:10.1016/j.materresbull.2025.113591

Panuwat Luengrojanakul , Annop Klamchuen , Piyawan Leepheng , Benchapol Tunhoo , Krittapas Charoensuk , Sarawut Rimdusit

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引用次数: 0

Abstract

In this investigation, CO₂ direct laser writing is performed on BA-a/NGDE shape memory polymer matrix coated fabric. Findings show that the quality and surface coverage of formed laser-induced graphene (LIG) are dependent on BA-a content. The LIGs acquired at higher BA-a content possess low sheet resistance (∼10–15 Ω/sq), facilitating its use as joule heater for shape memory actuation (T_avg ∼130 °C at 20 V for BOZ70-LIG). Furthermore, the fabricated LIG electrode shows potential use as electrochemical sensor with ΔE_p of 88–200 mV and k⁰ of 0.005 cm s^-1 (20 mm length) for 1 mM K₄[Fe(CN)₆]/0.1 M KCl. The 40 mm electrode length also maintains respectable electrochemical performance even after subjecting LIG to shape deformation and recovery. Moreover, the molecular imprinted polymer (MIP) modified LIG electrode also exhibits promising results in selective dopamine detection through leucodopaminechrome in PBS with linear detection range of 1.0–15.0 μM and LOD of 0.61 μM.

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基于聚苯并恶嗪共环氧涂层织物的形状记忆激光诱导石墨烯电极及其电化学传感器应用

在本研究中，CO2直接激光写入BA-a/NGDE形状记忆聚合物基涂层织物。研究结果表明，激光诱导形成的石墨烯（LIG）的质量和表面覆盖率与BA-a含量有关。在较高BA-a含量下获得的LIGs具有较低的片电阻（~ 10-15 Ω/sq），便于其用作形状记忆驱动的焦耳加热器（BOZ70-LIG在20 V下的温度为~ 130°C）。此外，制备的LIG电极具有作为电化学传感器的潜力，ΔEp为88-200 mV， k0为0.005 cm s-1 （20 mm长度），1 mm K4[Fe(CN)6]/0.1 M KCl。40毫米的电极长度即使在LIG遭受形状变形和恢复后也保持了可观的电化学性能。此外，分子印迹聚合物（MIP）修饰的LIG电极在PBS中选择性检测多巴胺，线性检测范围为1.0 ~ 15.0 μM， LOD为0.61 μM。

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来源期刊

Materials Research Bulletin 工程技术-材料科学：综合

CiteScore

9.80

自引率

5.60%

发文量

372

审稿时长

42 days

期刊介绍： Materials Research Bulletin is an international journal reporting high-impact research on processing-structure-property relationships in functional materials and nanomaterials with interesting electronic, magnetic, optical, thermal, mechanical or catalytic properties. Papers purely on thermodynamics or theoretical calculations (e.g., density functional theory) do not fall within the scope of the journal unless they also demonstrate a clear link to physical properties. Topics covered include functional materials (e.g., dielectrics, pyroelectrics, piezoelectrics, ferroelectrics, relaxors, thermoelectrics, etc.); electrochemistry and solid-state ionics (e.g., photovoltaics, batteries, sensors, and fuel cells); nanomaterials, graphene, and nanocomposites; luminescence and photocatalysis; crystal-structure and defect-structure analysis; novel electronics; non-crystalline solids; flexible electronics; protein-material interactions; and polymeric ion-exchange membranes.