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【太原理工大学|Microchemical Journal】基于智能手机的尿液多指标精准定量检测平台

  • 2026-02-02 10:33:53
【太原理工大学|Microchemical Journal】基于智能手机的尿液多指标精准定量检测平台
PART 01
文章信息
题目(英文原题): Smartphone-assisted colorimetry and array test strip integrated platform for urine multi-index simultaneous precise quantification and personalized healthcare monitoring
作者: Haiqin Li, Yueyue Li, Xiaoliang Zhang, Xiaojun Ren, Xiaochun Li*
单位:
太原理工大学 人工智能学院 生物医学精准检测与仪器研究所
山西医科大学第三医院 / 山西白求恩医院 肾内科
期刊: Microchemical Journal 2025 年,第 208 卷,文章号 112329
DOI: https://doi.org/10.1016/j.microc.2024.112329
PART 02
一句话核心结论
作者构建了一套集阵列尿试纸、光学附件与智能手机 App 于一体的尿液多指标精准定量平台,实现了 9 种尿液生物标志物的居家级定量检测,并在 100 例临床样本中验证了其可靠性。
PART 03
研究背景与科学问题
尿液分析是临床检验“三大常规”之一,在 肾病、代谢疾病和慢性病长期监测 中具有不可替代的作用。
然而,现有尿液检测方式存在明显局限:
  • 传统试纸 :依赖肉眼比色,仅能定性或半定量
  • 医院分析仪 :设备昂贵、操作复杂,难以居家应用
随着智能手机成像与计算能力的提升, 基于手机的比色分析 成为尿液检测的重要发展方向。但当前仍面临三大关键问题:
  • 多指标颜色响应差异大, 单一颜色空间难以精准定量
  • 手机型号差异导致成像一致性不足
  • 多数研究仅基于人工尿样, 真实临床样本验证不足
本文的核心科学问题是:如何实现多指标、可重复、可临床对标的居家尿液精准定量检测?
PART 04
技术原理与创新点
系统整体设计
作者提出了一种 Smart Urine Analyzer(智能尿液分析仪) ,由三部分构成:
  1. 3 × 3 阵列化尿试纸 (由商业长条试纸重构)
  2. 3D 打印光学附件 (集成 LED 均匀光源 + 微距镜头)
  3. 智能手机 App (自动识别、计算、存储与远程共享)
关键技术创新
阵列化试纸设计
将传统 75 mm 长试纸重构为 3 × 3 阵列
缩短成像区域,显著提升光照均匀性与检测精度
多颜色空间最优匹配策略
针对不同指标,分别选用 RGB 或 HSV 中的最优色度参数
解决多指标颜色响应“非单调性”难题
跨机型自适应成像结构
弹簧卡扣式手机支架
兼容多型号智能手机,保证成像一致性
App 级自动定量与数据管理
自动识别检测区域
输出具体浓度值
支持历史数据追踪与医患远程共享
PART 05
实验验证与性能表现
检测指标
系统实现了 9 种尿液指标的同时定量检测 :
  • 亚硝酸盐(Nitrite)
  • 微量白蛋白(Microalbumin)
  • 肌酐(Creatinine)
  • pH
  • 胆红素(Bilirubin)
  • 钙离子(Calcium)
  • 蛋白(Protein)
  • 血红蛋白(Hemoglobin)
  • 葡萄糖(Glucose)
定量性能
  • 线性相关系数(R²): 全部 > 0.99
  • 检测限(LOD): 覆盖临床检测需求
  • 人工尿回收率: 83.67 % – 119.33 %
  • RSD: 均 < 11.33 %
临床样本验证
作者对 100 例真实临床尿样 进行了对比测试:
  • 对照仪器: 迪瑞 H-800 尿液分析仪
  • 评价方法:ROC 曲线分析
关键结果
  • AUC 值: 0.88 – 0.99
  • 灵敏度: 85.2 % – 97.7 %
  • 特异性: 83.9 % – 100 %
结果表明,该系统与医院标准设备具有 高度一致性 ,满足 POCT(即时检测)需求。
PART 06
学术贡献
  • 构建了一个 真正可用于居家场景的多指标尿液定量检测平台
  • 提出了 多颜色空间最优匹配的比色定量新范式
  • 实现了从“试纸半定量”到“手机精准定量”的关键跨越
  • 通过大样本临床验证,证明其医学实用性
PART 07
局限性与未来方向
局限性:
  • 仍依赖商业试纸本身的反应稳定性
  • 部分指标(如亚硝酸盐)临床阳性样本较少
未来方向:
  • 拓展更多尿液或体液生物标志物
  • 与 AI 算法结合,实现疾病风险预测
  • 推动产品化与家庭医疗场景落地
PART 08
总结
该工作将 阵列化试纸设计、最优比色算法与智能手机平台 深度融合,实现了尿液多指标的高精度、低成本、可居家的定量检测。 研究为 慢性病管理、远程医疗与家庭健康监测 提供了一种极具应用潜力的新方案。
PART 09
图文赏析(示例)
图1 :3 × 3 阵列尿试纸结构及手机光学附件整体设计。
图3 :9 种尿液指标的比色响应及定量校准曲线。
图4 :100 例临床样本中不同指标的阳性/阴性分布。
图5 :与医院尿液分析仪对比的 ROC 曲线结果。


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  1. CONNECT:[ UseTime:0.000639s ] mysql:host=127.0.0.1;port=3306;dbname=h460;charset=utf8mb4
  2. SHOW FULL COLUMNS FROM `fenlei` [ RunTime:0.000894s ]
  3. SELECT * FROM `fenlei` WHERE `fid` = 0 [ RunTime:0.001338s ]
  4. SELECT * FROM `fenlei` WHERE `fid` = 63 [ RunTime:0.002075s ]
  5. SHOW FULL COLUMNS FROM `set` [ RunTime:0.000707s ]
  6. SELECT * FROM `set` [ RunTime:0.000241s ]
  7. SHOW FULL COLUMNS FROM `article` [ RunTime:0.000814s ]
  8. SELECT * FROM `article` WHERE `id` = 467978 LIMIT 1 [ RunTime:0.015527s ]
  9. UPDATE `article` SET `lasttime` = 1771395506 WHERE `id` = 467978 [ RunTime:0.007918s ]
  10. SELECT * FROM `fenlei` WHERE `id` = 64 LIMIT 1 [ RunTime:0.000329s ]
  11. SELECT * FROM `article` WHERE `id` < 467978 ORDER BY `id` DESC LIMIT 1 [ RunTime:0.000988s ]
  12. SELECT * FROM `article` WHERE `id` > 467978 ORDER BY `id` ASC LIMIT 1 [ RunTime:0.000653s ]
  13. SELECT * FROM `article` WHERE `id` < 467978 ORDER BY `id` DESC LIMIT 10 [ RunTime:0.002337s ]
  14. SELECT * FROM `article` WHERE `id` < 467978 ORDER BY `id` DESC LIMIT 10,10 [ RunTime:0.001803s ]
  15. SELECT * FROM `article` WHERE `id` < 467978 ORDER BY `id` DESC LIMIT 20,10 [ RunTime:0.008099s ]
0.108597s