A glass nanopore ionic sensor for surface charge analysis

Chen Songyue; Chen Hong; Zhang Jian; Dong Hepeng; Zhan Kan; Tang Yongliang

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A glass nanopore ionic sensor for surface charge analysis

机译：用于表面电荷分析的玻璃纳米孔离子传感器

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Surface charge-based nanopore characterization techniques unfold unique properties and provide a powerful platform for a variety of sensing applications. In this paper, we have proposed a nanoconfined inner wall surface charge characterization method with glass nanopores. The glass nanopores were functionalized with DNA aptamers that were designed for mercury (Hg2+) ion immobilization by forming thymine-Hg2+-thymine structures. The surface charge of the nanopores was modulated by surface chemistry and Hg(2+)ion concentrations and analysed by combining zeta potential measurements on glass slides and the ionic current rectification ratio of the nanopores. Also, 1 pM Hg(2+)ions could be detected by the nanopores.

机译：基于表面电荷的纳米孔表征技术展开独特的特性，并为各种传感应用提供强大的平台。在本文中，我们提出了一种纳米覆盖的内壁表面电荷表征方法，含有玻璃纳米孔。玻璃纳米孔用DNA适体官能化，该DNA适体通过形成胸腺嘧啶-HG2 + -Thymine结构而设计用于汞（HG2 +）离子固定。纳米孔的表面电荷通过表面化学和Hg（2+）离子浓度调节，并通过将Zeta电位测量与纳米孔的离子电流整流比组合来分析。此外，纳米孔可以检测下午1pm Hg（2+）离子。

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《RSC Advances》 |2020年第36期|共6页
作者
Chen Songyue; Chen Hong; Zhang Jian; Dong Hepeng; Zhan Kan; Tang Yongliang;
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作者单位

Xiamen Univ Dept Mech &

Elect Engn Xiamen 361005 Peoples R China;

Xiamen Univ Pen Tung Sah Inst Micronano Sci &

Technol Xiamen 361005 Peoples R China;

Xiamen Univ Coll Chem &

Chem Engn Xiamen 361005 Peoples R China;

Xiamen Univ Dept Mech &

Elect Engn Xiamen 361005 Peoples R China;

Xiamen Univ Coll Chem &

Chem Engn Xiamen 361005 Peoples R China;

Xiamen Univ Dept Mech &

Elect Engn Xiamen 361005 Peoples R China;

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正文语种 eng
中图分类化学;
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专利

1. A glass nanopore ionic sensor for surface charge analysis [J] . Chen Songyue, Chen Hong, Zhang Jian, RSC Advances . 2020,第36期

机译：用于表面电荷分析的玻璃纳米孔离子传感器
2. A glass nanopore ionic sensor for surface charge analysis [J] . Songyue Chen, Hong Chen, Jian Zhang, RSC Advances . 2020,第36期

机译：用于表面电荷分析的玻璃纳米孔离子传感器
3. Resistive-Pulse Sensing and Surface Charge Analysis of a Single Nanoparticle Collision at a Conical Glass Nanopore [J] . Zhou Ya, Wang Dandan, Li Chuanping, Analytical chemistry . 2019,第12期

机译：锥形玻璃纳米孔单个纳米粒子碰撞的电阻脉冲感测和表面电荷分析
4. Critical surface charge density for counter-ion binding in mixed micelles of ionic with non-ionic surfactant [C] . M. Manabe, H. Kawamura, H. Katsu-ura, International conference on colloid and surface science . 2001

机译：非离子表面活性剂的混合胶束中对抗离子结合的临界表面电荷密度
5. Electrical sensors for chemical processes: Capacitive sensing of photoinduced intramolecular charge transfer reactions and universal bioaffinity sensor based on conductance variation through nanopores. [D] . Vlassiouk, Ivan Valer'Evich. 2005

机译：用于化学过程的电传感器：基于纳米孔电导变化的电容感应光诱导的分子内电荷转移反应和通用生物亲和力传感器。
6. Label-Free DNA Sensor Based on Surface Charge Modulated Ionic Conductance [O] . Xian Wang, Sergei Smirnov -1

机译：基于表面电荷调节离子电导的无标记DNA传感器
7. Resistive-Pulse Sensing and Surface Charge Analysis of a Single Nanoparticle Collision at a Conical Glass Nanopore [O] . -1

机译：锥形玻璃纳米孔单个纳米粒子碰撞的电阻脉冲感测和表面电荷分析

A glass nanopore ionic sensor for surface charge analysis

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