Preparation of IrO<sub>2</sub>@MnO<sub>2</sub> Nanozyme and Its Application in the Detection of Ascorbic Acid

Yang Jun-song; Zhong Ying-ying; Yu Qian

doi:10.12052/gdutxb.200170

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Preparation of IrO₂@MnO₂ Nanozyme and Its Application in the Detection of Ascorbic Acid

更新时间：2026-05-27

- Preparation of IrO₂@MnO₂ Nanozyme and Its Application in the Detection of Ascorbic Acid
- Vol. 39, Issue 2, Pages: 130-136(2022)
- 作者机构：
  
  广东工业大学轻工化工学院,广东,广州,510006
- 作者简介：
- 基金信息：
- DOI：10.12052/gdutxb.200170
  CLC： O657.3
- Online First：10 March 2022，
  
  Published：2022
- 稿件说明：
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杨俊松, 钟颖颖, 余倩. IrO₂@MnO₂纳米酶的制备及用于抗坏血酸的检测[J]. 广东工业大学学报, 2022, 39(2): 130-136. DOI: 10.12052/gdutxb.200170.

Yang Jun-song, Zhong Ying-ying, Yu Qian. Preparation of IrO₂@MnO₂ Nanozyme and Its Application in the Detection of Ascorbic Acid[J]. 2022, 39(2): 130-136. DOI: 10.12052/gdutxb.200170.
杨俊松, 钟颖颖, 余倩. IrO₂@MnO₂纳米酶的制备及用于抗坏血酸的检测[J]. 广东工业大学学报, 2022, 39(2): 130-136. DOI: 10.12052/gdutxb.200170. DOI：

Yang Jun-song, Zhong Ying-ying, Yu Qian. Preparation of IrO₂@MnO₂ Nanozyme and Its Application in the Detection of Ascorbic Acid[J]. 2022, 39(2): 130-136. DOI: 10.12052/gdutxb.200170. DOI：

摘要

通过原位整合法制备了粒径约为136 nm，形态均一的方块状IrO

@MnO

纳米复合物。经实验证明该复合物具有协同提高的氧化酶模拟活性，其

值为6.50 × 10

−3

mmol/L，远优于IrO

纳米颗粒(IrO

Nanoparticles，IrO

NPs)(

= 9.73 × 10

−2

mmol/L)和MnO

纳米颗粒(MnO

Nano-particles

MnO

NPs)(

= 2.41 × 10

−1

mmol/L)。此外，通过实验获得了用于抗坏血酸(AscorbicAcids，AA)检测的IrO

@MnO

纳米复合物的最佳传感条件，包括反应体系为pH为4、反应温度为37 ℃、反应时间为5 min、IrO

@MnO

复合纳米酶质量浓度为71.43 µg/mL。最后，IrO

@MnO

纳米复合物被用于检测AA，检测范围为0~312.5 μmol/L，定量限为14.2 μmol/L，检测限为1.42 μmol/L。本文所制备IrO

@MnO

纳米酶在食品监制、生物医药、临床诊断等领域具有较高的潜在应用价值。

Abstract

A uniform square shaped IrO

@MnO

nanocomposite with a particle size of about 136 nm was prepared by the in-situ integration method. Results show that the nanocomposite has synergisti

cally improved oxidase mimic activity

and its

value is 6.50 × 10

−3

mmol/L which is better than that of IrO

NPs (

= 9.73 × 10

−2

mmol/L) and MnO

NPs (

= 2.41 × 10

−1

mmol/L)

respectively. In addition

the optimal sensing conditions of IrO

@MnO

nanocomposite for AA detection are obtained through experiments

which include the reaction system at pH 4

the reaction temperature at 37 ℃

the reaction time at 5 min

and the concentration of IrO

@MnO

nanocomposite at 71.43 µg/mL. Finally

the IrO

@MnO

nanocomposite is used for sensitive detection of AA

the detection range is 0~312.5 μmol/L

thequantification limit is 14.2 μmol/L and the detection limit is 1.42 μmol/L.

关键词

Keywords

references

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Preparation of IrO2@MnO2 Nanozyme and Its Application in the Detection of Ascorbic Acid

DOI：10.12052/gdutxb.200170

摘要

Abstract

关键词

Keywords

references

Preparation of IrO₂@MnO₂ Nanozyme and Its Application in the Detection of Ascorbic Acid