In Situ Growth of Columnar PEG on PEDOT and Its Antifouling Properties

IF 3.9 2区化学 Q2 CHEMISTRY, MULTIDISCIPLINARY Langmuir Pub Date : 2024-07-03 DOI:10.1021/acs.langmuir.4c02180

Wenfeng Hai*, Yang Liu, YuJia Tian, Zhiran Chen, Yingsong Chen, Wenji Bao, Tingfang Bai, Jinghai Liu and Yushuang Liu*,

引用次数: 0

Abstract

The antifouling properties of conductive polymers have received extensive attention for biosensor and bioelectronic applications. Polyethylene glycol (PEG) is a well-known antifouling material, but the controlled regulation of the surface topography of PEG without a template remains a challenge. Here, we show a columnar structure antifouling conductive polymer brush with enhanced antifouling properties and considerable conductivity. The method involves synthesizing the 3,4-ethylenedioxythiophene monomer modified with azide (EDOT-N₃), the electropolymerization of PEDOT-N₃, and the in situ growth of PEG polymer brushes on PEDOT through double-click reactions. The resultant columnar structure polymer brush exhibits high electrical conductivity (3.5 Ω·cm²), ultrahigh antifouling property, electrochemical stability (capacitance retention was 93.8% after 2000 cycles of CV scans in serum), and biocompatibility.

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柱状 PEG 在 PEDOT 上的原位生长及其防污性能。

导电聚合物的防污特性在生物传感器和生物电子应用领域受到广泛关注。聚乙二醇（PEG）是一种著名的防污材料，但如何在没有模板的情况下可控地调节 PEG 的表面形貌仍是一个难题。在这里，我们展示了一种柱状结构的防污导电聚合物刷，它具有更强的防污性能和可观的导电性。该方法包括合成叠氮修饰的 3,4-亚乙二氧基噻吩单体（EDOT-N3）、PEDOT-N3 的电聚合以及通过双击反应在 PEDOT 上原位生长 PEG 聚合物刷。最终得到的柱状结构聚合物刷具有高导电性（3.5 Ω-cm2）、超强防污性、电化学稳定性（在血清中进行 2000 次 CV 扫描后电容保持率为 93.8%）和生物相容性。

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来源期刊

Langmuir 化学-材料科学：综合

CiteScore

6.50

自引率

10.30%

发文量

1464

审稿时长

2.1 months

期刊介绍： Langmuir is an interdisciplinary journal publishing articles in the following subject categories: Colloids: surfactants and self-assembly, dispersions, emulsions, foams Interfaces: adsorption, reactions, films, forces Biological Interfaces: biocolloids, biomolecular and biomimetic materials Materials: nano- and mesostructured materials, polymers, gels, liquid crystals Electrochemistry: interfacial charge transfer, charge transport, electrocatalysis, electrokinetic phenomena, bioelectrochemistry Devices and Applications: sensors, fluidics, patterning, catalysis, photonic crystals However, when high-impact, original work is submitted that does not fit within the above categories, decisions to accept or decline such papers will be based on one criteria: What Would Irving Do? Langmuir ranks #2 in citations out of 136 journals in the category of Physical Chemistry with 113,157 total citations. The journal received an Impact Factor of 4.384*. This journal is also indexed in the categories of Materials Science (ranked #1) and Multidisciplinary Chemistry (ranked #5).