A semiconductor interface triple-molecular gate-based and artificial intelligence raman spectrum analysis sensing platform and biological applications thereof

By constructing a ZrOx heterointerface on the ZrS2 semiconductor surface and introducing a dopamine linker layer and a hydrophobic alkyl brush, combined with machine learning algorithms, the selectivity and speed issues of LysoPC detection in complex biological systems were solved, achieving highly sensitive quantitative analysis suitable for the detection and management of neurological diseases.

CN122409620APending Publication Date: 2026-07-17SHANGHAI FOURTH PEOPLES HOSPITAL (SHANGHAI FOURTH PEOPLES HOSPITAL AFFILIATED TO TONGJI UNIV)

Patent Information

Authority / Receiving Office
CN · China
Patent Type
Applications(China)
Current Assignee / Owner
SHANGHAI FOURTH PEOPLES HOSPITAL (SHANGHAI FOURTH PEOPLES HOSPITAL AFFILIATED TO TONGJI UNIV)
Filing Date
2026-05-20
Publication Date
2026-07-17

AI Technical Summary

Technical Problem

Existing technologies for detecting lipids and small molecule metabolites in complex biological systems suffer from problems such as cumbersome pretreatment, long detection cycles, insufficient selectivity, and difficulty in achieving rapid quantification. In particular, in the detection of lipid molecules such as LysoPC, traditional Raman spectroscopy signals are weak and lack chemical selectivity, making it difficult to meet the requirements for detecting low-abundance molecules.

Method used

A ZrS2@ZrOx heterostructure was constructed using ZrS2 semiconductor nanostructures, and a dopamine linker layer and C12-C20 hydrophobic alkyl brushes were introduced to form a triple molecular-gated hybrid interface. A concentration prediction model was constructed by combining machine learning algorithms to achieve highly selective identification and highly sensitive quantitative analysis of LysoPC.

Benefits of technology

It achieves highly sensitive and selective detection of LysoPC in complex biological systems, with a detection limit of 0.28 mg/mL, a signal-to-noise ratio greater than 18.5, and a single detection time of less than 1 minute. It has good sensitivity, stability and reproducibility, and is suitable for risk assessment of neurological diseases and perioperative neurological function management.

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Abstract

本发明提供了一种基于半导体界面三重分子门控与人工智能拉曼光谱的分析传感平台及其生物应用。通过在ZrS2半导体表面构建ZrOx异质界面,并进一步引入多巴胺连接层及C12‑C20疏水烷基刷,形成兼具头基配位识别、链长疏水自由能筛选及半导体电荷转移增强作用的三重分子门控杂化界面结构,从材料界面层面实现对目标分子的多维筛选与富集;同时利用半导体能带调控产生选择性电荷转移共振增强效应,提高目标分子的拉曼信号响应强度与特异性,降低复杂生物体系中背景干扰的影响。在此基础上,结合机器学习算法对多维拉曼指纹特征进行建模分析,建立拉曼光谱数据与目标分子浓度之间的非线性映射关系,实现复杂生物样本中目标分子的快速、无标记、高准确度定量检测。
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