Electrochemiluminescence Signal Enhancement of Ru(bpy)32+-doped SiO2 Nanoparticles Based on Sodium Polyacrylate-Nafion Mixing Membrane and Their Bio-labeling

CHEN Zhe; DOU Xing-ru; GE Zhi-li; GUO Li-ping; XIE Hong-ping

doi:10.3788/fgxb20163703.0310

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Electrochemiluminescence Signal Enhancement of Ru(bpy)₃²⁺-doped SiO₂ Nanoparticles Based on Sodium Polyacrylate-Nafion Mixing Membrane and Their Bio-labeling

更新时间：2020-08-12

- Electrochemiluminescence Signal Enhancement of Ru(bpy)₃²⁺-doped SiO₂ Nanoparticles Based on Sodium Polyacrylate-Nafion Mixing Membrane and Their Bio-labeling
- Chinese Journal of Luminescence Vol. 37, Issue 3, Pages: 310-314(2016)
- 作者机构：
  
  1. 苏州大学药学院,江苏苏州,215123
  2. 苏州大学第一附属医院,江苏苏州,215123
  3. 重庆科技学院化学化工学院重庆,401331
- 作者简介：
- 基金信息：
- DOI：10.3788/fgxb20163703.0310
  CLC： O482.31;O614.82
- Received：16 October 2015，
  
  Revised：21 December 2015，
  
  Published：05 March 2016
- 稿件说明：
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陈哲, 豆兴茹, 葛芝莉等. 利用聚丙烯酸钠-Nafion混合膜增强三联吡啶钌掺杂SiO2纳米粒的电化学发光信号及其生物标记[J]. 发光学报, 2016,37(3): 310-314

CHEN Zhe, DOU Xing-ru, GE Zhi-li etc. Electrochemiluminescence Signal Enhancement of Ru(bpy)32+-doped SiO2 Nanoparticles Based on Sodium Polyacrylate-Nafion Mixing Membrane and Their Bio-labeling[J]. Chinese Journal of Luminescence, 2016,37(3): 310-314
陈哲, 豆兴茹, 葛芝莉等. 利用聚丙烯酸钠-Nafion混合膜增强三联吡啶钌掺杂SiO2纳米粒的电化学发光信号及其生物标记[J]. 发光学报, 2016,37(3): 310-314 DOI： 10.3788/fgxb20163703.0310.

CHEN Zhe, DOU Xing-ru, GE Zhi-li etc. Electrochemiluminescence Signal Enhancement of Ru(bpy)32+-doped SiO2 Nanoparticles Based on Sodium Polyacrylate-Nafion Mixing Membrane and Their Bio-labeling[J]. Chinese Journal of Luminescence, 2016,37(3): 310-314 DOI： 10.3788/fgxb20163703.0310.

摘要

对于三联吡啶钌(Ru(bpy)

)掺杂的SiO

纳米粒

以聚电解质聚丙烯酸钠和成膜物质Nafion的混合液对纳米粒进行包覆

制备了聚丙烯酸钠和Nafion混合膜包覆的电化学发光(ECL)纳米粒。结果表明:混合膜包覆的纳米粒

相对于Nafion膜的ECL信号增强了13倍。同时

混合膜表面可交换阳离子显著增加

能够通过离子交换固载大量的Ru(bpy)

纳米粒的ECL信号可进一步增强约3倍。混合膜还具有另外一个显著的优势

即通过混合膜的疏水相互作用可以方便地标记生物大分子

标记抗体仍然具有良好的免疫活性。

Abstract

Ru(bpy)

-doped SiO

nanoparticles were covered with the mixture of polyelectrolyte sodium polyacrylate and membrane-forming substance Nafion

and then the electrochemiluminescence (ECL) nanoparticles were acquired. The results show that ECL intensity of the polyacrylate-Nafion mixing membrane covered nanoparticles is enhanced 13 times

compared with the Nafion membrane covered nanoparticles. At the same time

there is an obvious increase of the exchangeable cation on the surface of the mixing membrane

and more Ru(bpy)

can be immobilized on the surface of the nanoparticles based on ion exchanging

and the corresponding ECL intensity can be enhanced about 3 times. Another significant advantage of the mixing membrane is that the as-prepared nanoparticles can label bio-macromolecule more easily based on the hydrophobic interaction. The results show that the labelled antibody still has good immune activity.

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references

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