Development of up-converting phosphor technology-based lateral-flow assay for rapidly quantitative detection of hepatitis B surface antibody

作者：Li Luping; Zhou Lei; Yu Yang; Zhu Ziwen; Lin Changqing; Lu Changlong^*; Yang Ruifu

来源：Diagnostic Microbiology and Infectious Disease, 2009, 63(2): 165-172.

DOI：10.1016/j.diagmicrobio.2008.10.020

• Up-converting phosphor technology
• Biosensor
• Lateral-flow strip
• Hepatitis B surface antibody
• Clinical quantitative detection

An up-converting phosphor technology-based lateral-flow (UPT-LF) assay system was developed for rapid and quantitative detection of hepatitis B surface antibody (HBsAb). To evaluate its performance, we compared it with the Abbott Axsym AUSAB (ABBOTT Diagnostics Division, Wiesbaden, Germany) assay and conventional ELISA (Wantai Biological Pharmacy Enterprise, Beijing, China) using 13 standard positive sera and 306 clinical sera. In both laboratory evaluation and clinical application, UPT-LF assay showed the best sensitivity (99.19%) and detection agreement (97.43% for the adjusted agreement) with true results. The concordance rate between UPT-LF and ELISA, as shown by correlative regression analysis, was the highest (R(2) = 0.6389), whereas that between UPT-LF and AUSAB was the lowest (R(2) = 0.5702). In conclusion, UPT-LF assay for quantitative detection of HBsAb is sensitive and rapid, promising this new assay a bright future.

• 出版日期2009-2
• 单位中国医科大学