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首页> 外文期刊>Organic Electronics >Water-gated phthalocyanine transistors: Operation and transduction of the peptide-enzyme interaction
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Water-gated phthalocyanine transistors: Operation and transduction of the peptide-enzyme interaction

机译：水控酞菁晶体管：肽酶相互作用的操作和转导

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摘要

The use of aqueous solutions as the gate medium is an attractive strategy to obtain high charge carrier density (10~(12) cm~(-2)) and low operational voltages (＜1 Ⅴ) in organic transistors. Additionally, it provides a simple and favorable architecture to couple both ionic and electronic domains in a single device, which is crucial for the development of novel technologies in bioelectronics. Here, we demonstrate the operation of transistors containing copper phthalocyanine (CuPc) thin-films gated with water and discuss the charge dynamics at the CuPc/water interface. Without the need for complex multilayer patterning, or the use of surface treatments, water-gated CuPc transistors exhibited low threshold (100 ± 20 mV) and working voltages (＜1 V) compared to conventional CuPc transistors, along with similar charge carrier mobilities (1.2 ± 0.2) x 10~(-3) cm~2 V~(-1) s~(-1). Several device characteristics such as moderate switching speeds and hysteresis, associated with high capacitances at low frequencies upon bias application (3.4 -12 μF cm~(-2)), indicate the occurrence of interfacial ion doping. Finally, water-gated CuPc OTFTs were employed in the transduction of the biospecific interaction between tripeptide reduced glutathione (GSH) and glutathione S-transferase (GST) enzyme, taking advantage of the device sensitivity and multiparametricity.
机译：使用水溶液作为栅极介质是在有机晶体管中获得高电荷载流子密度（10〜（12）cm〜（-2））和低工作电压（＜1Ⅴ）的一种有吸引力的策略。此外，它提供了一种简单且有利的架构，可在单个设备中耦合离子域和电子域，这对于生物电子领域新技术的开发至关重要。在这里，我们演示了包含用水栅控的酞菁铜（CuPc）薄膜的晶体管的操作，并讨论了CuPc /水界面的电荷动力学。与传统的CuPc晶体管相比，无需进行复杂的多层构图或无需进行表面处理，水门控式CuPc晶体管的阈值（100±20 mV）和工作电压（＜1 V）低，并且载流子迁移率相似（ 1.2±0.2）x 10〜（-3）cm〜2 V〜（-1）s〜（-1）。施加偏压（3.4 -12μF​​cm〜（-2））时，与低频率下的高电容相关的多种器件特性（例如适中的开关速度和磁滞）表明发生了界面离子掺杂。最后，利用水闸化的CuPc OTFT来转导三肽还原型谷胱甘肽（GSH）和谷胱甘肽S-转移酶（GST）酶之间的生物特异性相互作用，从而充分利用了设备的敏感性和多参数性。

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  • 来源
    《Organic Electronics》 |2016年第4期|217-226|共10页
  • 作者

    Rafael Furlan de Oliveira; Leandro Merces; Tatiana Parra Velio; Carlos Cesar Bof Bufon;

  • 作者单位

    Brazilian Nanotechnology National Laboratory (LNNano), CNPEM, 13083-970, Campinas, Brazil;

    Brazilian Nanotechnology National Laboratory (LNNano), CNPEM, 13083-970, Campinas, Brazil,Institute of Physics 'Gleb Wataghin' (IFGW), UNICAMP, 13083-859, Campinas, Brazil;

    Brazilian Nanotechnology National Laboratory (LNNano), CNPEM, 13083-970, Campinas, Brazil,Department of Physical Chemistry, Institute of Chemistry (IQ), UNICAMP, 13083-970, Campinas, Brazil;

    Brazilian Nanotechnology National Laboratory (LNNano), CNPEM, 13083-970, Campinas, Brazil,Institute of Physics 'Gleb Wataghin' (IFGW), UNICAMP, 13083-859, Campinas, Brazil,Department of Physical Chemistry, Institute of Chemistry (IQ), UNICAMP, 13083-970, Campinas, Brazil;

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  • 原文格式 PDF
  • 正文语种 eng
  • 中图分类
  • 关键词

    Copper phthalocyanine; Water-gated organic transistor; Reduced glutathione; Glutathione S-Transferase; Bioelectronics;

    机译：铜酞菁;水控有机晶体管;还原型谷胱甘肽;谷胱甘肽S-转移酶;生物电子学;

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