Colorimetric determination of cystine in human urine using label-free gold nanoparticles
作者单位：Nano-Mineral Materials and Application Engineering Research Center of Ministry of EducationFaculty of Materials Science and ChemistryChina University of Geosciences Division of Nanomaterials and ChemistryHefei National Laboratory for Physical Sciences at MicroscaleDepartment of ChemistryUniversity of Science and Technology of China
会议名称：《中国颗粒学会超微颗粒专委会2013年年会暨第八届海峡两岸超微颗粒学术研讨会》
会议日期：2013年
学科分类：1010[医学-医学技术（可授医学、理学学位）] 10[医学]
基 金：funding support from the Fundamental Research Funds for the Central Universities(CUG090108)
摘 要：Cystinosis and some other diseases are characterized by high concentrations of cystine in urine(usually400 mg L-1).Until now many methods have been developed to detect cystine in human urine,such as iodimetry,[1]electrochemitry,[2]high-performance liquid chromatography,[3]fluorimetry[4]and colorimetry.[5]Among these methods,colorimetric assay is the most attractive analytical method,especially in a resource poor setting,due to its simplicity,easy observation by the naked eye and no requirement for sophisticated