An innovative sensor is prepared by electrode modification through a nano-ranged electrode modifier composed of LaNbO₄ nano caviars decorated on the enmeshed carbon nanofibers to identify excess vitamins in animal feed. Menadione (Vitamins K3) is a micronutrient fundamentally required in precise quantities for animal health upkeep. Still, its exploitation has recently resulted in water reservoir contamination through waste generated from animal husbandry. Sustainable prevention of water contamination makes menadione detection highly imperative and flickered the attention of researchers. Considering these aspects, a novel menadione sensing platform is designed by interdisciplinary incorporation of nanoscience and electrochemical engineering. The structural and crystallographic features and the electrode modifier's morphological insights were keenly investigated. The hierarchal arrangement of individual constituents in nanocomposite is benefited through hybrid heterojunction and quantum confinement that synchronously activate the menadione detection with a LOD of 68.5 nM and 67.49 nM for oxidation and reduction, respectively. The as-prepared sensor has a wide linear range (0.1–173.6 μM), high sensitivity, good selectivity, and stability. The application of this sensor is extended to a water sample to monitor the consistency of the proposed sensor.

_{通过由LaNbO 4}组成的纳米级电极改性剂进行电极改性制备了一种创新传感器纳米鱼子酱装饰在交织在一起的碳纳米纤维上，用于识别动物饲料中过量的维生素。甲萘醌（维生素 K3）是一种微量营养素，对维持动物健康至关重要。尽管如此，它的开发最近已导致水库因畜牧业产生的废物而受到污染。水污染的可持续预防使得甲萘醌的检测变得非常必要，并引起了研究人员的关注。考虑到这些方面，通过纳米科学和电化学工程的跨学科结合设计了一种新型甲萘醌传感平台。对结构和晶体学特征以及电极改性剂的形态学见解进行了敏锐的研究。纳米复合材料中各个成分的层次排列得益于混合异质结和量子限制，同步激活甲萘醌检测，氧化和还原的 LOD 分别为 68.5 nM 和 67.49 nM。制备的传感器线性范围宽(0.1–173.6 μM)、灵敏度高、选择性好、稳定性好。该传感器的应用扩展到水样以监测所提出的传感器的一致性。