Artificial intelligence-assisted colorimetry for urine glucose detection towards enhanced sensitivity,accuracy,resolution,and anti-illuminating capability  

作　　者：Fan Feng Zeping Ou Fangdou Zhang Jinxing Chen Jiankun Huang Jingxiang Wang Haiqiang Zuo Jingbin Zeng 

机构地区：[1]State Key Laboratory for Heavy Oil Processing,College of Chemistry and Chemical Engineering,China University of Petroleum(East China),Qingdao 266580,China [2]College of New Energy,China University of Petroleum(East China),Qingdao 266580,China [3]Institute of Functional Nano&Soft Materials(FUNSOM),Jiangsu Key Laboratory for Carbon-Based Functional Materials&Devices,Soochow University,Suzhou 215123,China [4]Qingdao Fifth People’s Hospital,Qingdao 266580,China

出　　处：《Nano Research》2023年第10期12084-12091,共8页纳米研究（英文版）

基　　金：the National Natural Science Foundation of China(No.21876206);the Shandong Key Fundamental Research Project(No.ZR202010280003);the Fundamental Research Funds for the Central Universities(No.18CX02037A);the Youth Innovation and Technology project of Universities in Shandong Province(No.2020KJC007).

摘　　要：Colorimetry often suffers from deficiency in quantitative determination,susceptibility to ambient illuminance,and low sensitivity and visual resolution to tiny color changes.To offset these deficiencies,we incorporate deep machine learning into colorimetry by introducing a convolutional neural network(CNN)with powerful parallel processing,self-organization,and self-learning capabilities.As a proof of concept,a plasmonic nanosensor is proposed for the colorimetric detection of glucose by coupling Benedict’s reagent with gold nanoparticles(AuNPs),which relies on the assemble of AuNPs into dendritic nanochains by Cu2O.The distinct difference of refractive index between Cu2O and Au and the localized surface plasmon resonance coupling effect among AuNPs leads to a broad spectral shift as well as abundant color changes,thereby providing sufficient data for selflearning enabled by machine learning.The CNN is then used to fully diversify the learning and training of the images from standard samples under different ambient conditions and to obtain a classifier that can not only recognize tiny color changes that are imperceptible to human eyes,but also exhibit high accuracy and excellent anti-environmental interference capability.This classifier is then compiled as an application(APP)and implanted into a smartphone with Android environment.306 clinical urine samples were detected using the proposed method and the results showed a satisfactory correlation(87.6%)with that of a standard blood glucose test method.More importantly,this method can be generalized to other applications in colorimetry,and more broadly,in other scientific domains that involve image analysis and quantification.

关 键 词：artificial intelligence COLORIMETRY urine glucose plasmonic nanosensor smartphone platform 

分 类 号：TP18[自动化与计算机技术—控制理论与控制工程]