Self-shedding MOF-nanocarriers modulated CdS/MoSe2 heterojunction activity through in-situ ion exchange: An enhanced split-type photoelectrochemical sensor for deoxynivalenol

Pei Song; Jin-Jin Xu; Jia-Yan Ye; Rui-Jin Shao; Xiaoping Xu; Ai-Jun Wang; Li-Ping Mei; Yadong Xue; Jiu-Ju Feng

doi:10.1016/j.talanta.2024.126464

Self-shedding MOF-nanocarriers modulated CdS/MoSe₂ heterojunction activity through in-situ ion exchange: An enhanced split-type photoelectrochemical sensor for deoxynivalenol

Talanta. 2024 Oct 1:278:126464. doi: 10.1016/j.talanta.2024.126464. Epub 2024 Jun 26.

Authors

Pei Song¹, Jin-Jin Xu², Jia-Yan Ye², Rui-Jin Shao², Xiaoping Xu³, Ai-Jun Wang², Li-Ping Mei⁴, Yadong Xue⁵, Jiu-Ju Feng⁶

Affiliations

¹ Central Laboratory, Clinical Laboratory, Affiliated Jinhua Hospital, Zhejiang University School of Medicine, Jinhua, 321000, China; College of Geography and Environmental Sciences, College of Chemistry and Materials Sciences, Key Laboratory of Watershed Earth Surface Processes and Ecological Security, Zhejiang Normal University, Jinhua, 321004, China.
² College of Geography and Environmental Sciences, College of Chemistry and Materials Sciences, Key Laboratory of Watershed Earth Surface Processes and Ecological Security, Zhejiang Normal University, Jinhua, 321004, China.
³ Central Laboratory, Clinical Laboratory, Affiliated Jinhua Hospital, Zhejiang University School of Medicine, Jinhua, 321000, China.
⁴ College of Geography and Environmental Sciences, College of Chemistry and Materials Sciences, Key Laboratory of Watershed Earth Surface Processes and Ecological Security, Zhejiang Normal University, Jinhua, 321004, China. Electronic address: [email protected].
⁵ Central Laboratory, Clinical Laboratory, Affiliated Jinhua Hospital, Zhejiang University School of Medicine, Jinhua, 321000, China. Electronic address: [email protected].
⁶ College of Geography and Environmental Sciences, College of Chemistry and Materials Sciences, Key Laboratory of Watershed Earth Surface Processes and Ecological Security, Zhejiang Normal University, Jinhua, 321004, China. Electronic address: [email protected].

PMID: 38936106
DOI: 10.1016/j.talanta.2024.126464

Abstract

Deoxynivalenol (DON), a mycotoxin produced by Fusarium, poses a significant risk to human health and the environment. Therefore, the development of a highly sensitive and accurate detection method is essential to monitor the pollution situation. In response to this imperative, we have devised an advanced split-type photoelectrochemical (PEC) sensor for DON analysis, which leverages self-shedding MOF-nanocarriers to modulate the photoelectric response ability of PEC substrate. The PEC sensing interface was constructed using CdS/MoSe₂ heterostructures, while the self-shedding copper peroxide nanodots@ZIF-8 (CPNs@ZIF-8) served as the Cu²⁺ source for the in-situ ion exchange reaction, which generated a target-related signal reduction. The constructed PEC sensor exhibited a broad linear range of 0.1 pg mL^-1 to 500 ng mL^-1 with a low detection limit of 0.038 pg mL^-1, demonstrating high stability, selectivity, and proactivity. This work not only introduces innovative ideas for the design of photosensitive materials, but also presents novel sensing strategies for detecting various environmental pollutants.

Keywords: Deoxynivalenol; In-situ ion exchange; MOF-Nanocarriers CdS/MoSe(2); Photoelectrochemical sensor; Self-shedding.

MeSH terms

Cadmium Compounds* / chemistry
Electrochemical Techniques* / methods
Ion Exchange
Limit of Detection
Metal-Organic Frameworks* / chemistry
Photochemical Processes
Sulfides / chemistry
Trichothecenes* / analysis
Trichothecenes* / chemistry

Substances

Trichothecenes
deoxynivalenol
Cadmium Compounds
Metal-Organic Frameworks
Sulfides
cadmium sulfide