2D/2D heterostructure Ni-Fe LDH/black phosphorus nanosheets with AuNP for noxious substance diphenylamine detection in food samples

Sanjay Ballur Prasanna; Yu-Chien Lin; Sayee Kannan Ramaraj; Udesh Dhawan; Xinke Liu; Ching-Wei Tung; Rajalakshmi Sakthivel; Ren-Jei Chung

doi:10.1016/j.foodchem.2023.137295

2D/2D heterostructure Ni-Fe LDH/black phosphorus nanosheets with AuNP for noxious substance diphenylamine detection in food samples

Food Chem. 2024 Jan 30:432:137295. doi: 10.1016/j.foodchem.2023.137295. Epub 2023 Aug 25.

Authors

Sanjay Ballur Prasanna¹, Yu-Chien Lin¹, Sayee Kannan Ramaraj², Udesh Dhawan³, Xinke Liu⁴, Ching-Wei Tung⁵, Rajalakshmi Sakthivel⁶, Ren-Jei Chung⁷

Affiliations

¹ Department of Chemical Engineering and Biotechnology, National Taipei University of Technology (Taipei Tech), Taipei 10608, Taiwan.
² PG& Research Department of Chemistry, Thiagarajar College, Madurai 09, Tamilnadu, India.
³ Centre for the Cellular Microenvironment, Division of Biomedical Engineering, James Watt School of Engineering, Mazumdar-Shaw Advanced Research Centre, University of Glasgow, Glasgow G116EW, UK.
⁴ College of Materials Science and Engineering, Chinese Engineering and Research Institute of Microelectronics, Shenzhen University, Shenzhen 518060, China; Department of Electrical and Computer Engineering, National University of Singapore, Singapore 117583, Singapore.
⁵ Department of Materials Engineering, Ming Chi University of Technology, New Taipei City, Taiwan. Electronic address: chingweitung@mail.mcut.edu.tw.
⁶ Department of Chemical Engineering and Biotechnology, National Taipei University of Technology (Taipei Tech), Taipei 10608, Taiwan. Electronic address: rajalakshmi@ntut.edu.tw.
⁷ Department of Chemical Engineering and Biotechnology, National Taipei University of Technology (Taipei Tech), Taipei 10608, Taiwan; High-value Biomaterials Research and Commercialization Center, National Taipei University of Technology (Taipei Tech), Taipei 10608, Taiwan. Electronic address: rjchung@mail.ntut.edu.tw.

PMID: 37659324
DOI: 10.1016/j.foodchem.2023.137295

Abstract

In this study, gold nanoparticles decorated on nickel-iron layered double hydroxide with black phosphorus nanosheets (AuNP/Ni-Fe LDH/BPNSs) composite were prepared using a stirring method. Analyte tracing is required for developing viable sensors. The AuNP/Ni-Fe LDH/BPNSs composite exhibited a large specific surface area, high conductivity, high electrocatalytic activity, and rapid electron transfer. These properties play a vital role in monitoring diphenylamine (DPA) in food samples. The formation of the AuNP/Ni-Fe LDH/BPNSs composite was confirmed using various structural and morphological characterization techniques. The electroanalytical character of the AuNP/Ni-Fe LDH/BPNSs composite was evaluated using voltammetry. Interestingly, the AuNP/Ni-Fe LDH/BPNSs showed a wide linear range of 0.0125-1003.82 μM and a detection limit of 4.63 nM with a sensitivity of 0.399 µA µM^-1 cm^-2. The constructed sensor shows considerable selectivity, stability, repeatability, and reproducibility, and the practicability of DPA was monitored in the apples, sweet tomatoes, pears, and grapes with satisfactory recoveries.

Keywords: Black phosphorous; Diphenylamine; Electrooxidation; Food samples; Ni-Fe layered double hydroxide.

MeSH terms

Diphenylamine*
Gold
Metal Nanoparticles*
Phosphorus
Reproducibility of Results

Substances

Diphenylamine
Gold
Phosphorus