Smartphone-Assisted Wireless Ultrasensitive Nitrite Detection in Food Samples via Hierarchical MXene/NiCoMn-LDH/Sulfide Heterostructure on Flexible Laser-Induced Graphene Electrode.

ABSTRACT: Designing a smartphone in-built, wireless, ultrasensitive hybrid heterostructure-based sensor is challenging, but it is potentially crucial for achieving efficient electrochemical responses related to real-time food safety monitoring. Herein, the pioneering design of a few-layered MXene-tagged NiCoMn-layered double hydroxide (LDH)/amorphous sulfide (MXe/NiCoMn-LDH/S) hollow spheres were fabricated and tagged onto a laser-induced graphene (LIG) electrode for smartphone-based electrochemical detection of nitrite (NO₂ ^-). Benefiting from the unique structural and compositional advantages of MXe/NiCoMn-LDH/S integrated on a flexible LIG electrode platform, the sensor achieved a linear detection range from 0.90 to 25 µM, and a low detection limit of 0.21 µM, along with a h

SUBMITTER: Ranjith KS 

PROVIDER: S-EPMC12723330 | biostudies-literature | 2025 Dec

REPOSITORIES: biostudies-literature