Palladium nanoparticles decorated Ni-MOF nanocomposite as an electrochemical platform for the selective detection of dopamine

被引：33

作者：

Kavya, K. V. ^{[1
]}

Muthu, Dinesh ^{[1
]}

Pattappan, Dhanaprabhu ^{[1
]}

Vargheese, Stella ^{[1
]}

Gokila, N. ^{[1
]}

Sivaramkumar, M. S. ^{[2
]}

Kumar, Ramasamy Thangavelu Rajendra ^{[1
]}

Haldorai, Yuvaraj ^{[1
]}

机构：

[1] Bharathiar Univ, Dept Nanosci & Technol, Coimbatore 641046, Tamil Nadu, India

[2] Kongunadu Arts & Sci Coll, Dept Chem, Coimbatore 641029, Tamil Nadu, India

来源：

MATERIALS LETTERS | 2022年 / 306卷

关键词：

Metal-organic framework; Palladium; Dopamine; Electrochemical sensor; METAL-ORGANIC FRAMEWORKS; REDUCED GRAPHENE OXIDE;

D O I：

10.1016/j.matlet.2021.130926

中图分类号：

T [工业技术];

学科分类号：

08 ;

摘要：

In this study, we prepared an electrochemical sensor using palladium nanoparticles decorated nickel-based metal-organic framework (Pd@Ni-MOF) nanocomposite for the detection of dopamine. The cyclic voltammetry analysis proved that a glassy carbon electrode modified by the Pd@Ni-MOF nanocomposite showed good electrocatalytic activity toward dopamine oxidation. Differential pulse voltammetry showed that the peak current increased linearly with dopamine concentration in the range of 1 nM to 100 mu M with a low detection limit of 0.01 mu M. The nanocomposite sensor exhibited good selectivity, stability, and excellent reproducibility. The sensor is used to determine the dopamine level in urine samples with acceptable recovery, implying its feasibility for practical application.

引用

页数：4

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