Page 85 - 《精细化工》2021年第7期
P. 85
第 38 卷第 7 期 精 细 化 工 Vol.38, No.7
202 1 年 7 月 FINE CHEMICALS July 2021
功能材料
用于新型冠状病毒快速诊断的荧光免疫层析
试纸条的制备及其细胞成像
1
1
黄池宝 1,4 ,杨 斌 2,3 ,康 帅 ,杨 丽 2,3 ,吕国岭 ,余福勋 2,3*
(1. 遵义师范学院 信息工程学院,贵州 遵义 563002;2. 贵州省人民医院中心实验室,贵州 贵阳
550002;3. 贵州省人民医院卫健委肺脏免疫性疾病重点实验室,贵州 贵阳 550002;4. 韶关大学 英东
生物与农业学院,广东 韶关 512005)
摘要:合成了双光子荧光标记探针 LP 并对其结构进行了表征,通过 LP 标记 SARS-CoV-2 的 N-蛋白抗原(Ag)
获得 LP-Ag,并将 LP-Ag 制成免疫层析试纸条(TPICS)/试剂盒(TPICK)。临床应用研究表明,与核酸法
(PCR)/胶体金法比较,TPICS 的阳性符合率、阴性符合率和总符合率分别为 98.99%/98.10%、99.55%/99.53%
和 99.38%/99.06%,其一致性系数 Kappa 值(K)为 0.972/0.975,灵敏度、特异性和准确度分别为 98.99%/98.10%、
99.55%/99.53%和 99.38%/99.06%。检测试剂与参比试剂检测结果一致(K>0.75),无统计学差异。TPICS/TPICK
检测所用稀释血样一般为 25~50 μL(合全血样 5~10 μL),检测时间在 10 min 内,既避免了核酸法操作繁琐与检
测周期过长的缺点,又克服了胶体金法因吸附官能团脱落而导致的不稳定性,具有良好的应用价值。LP-Ag 可
用于细胞中 SARS-CoV-2 成像以鉴定其阴阳性。
关键词:COVID-19/SARS-CoV-2;N-蛋白;免疫层析试纸条;双光子荧光;试剂盒;功能材料
中图分类号:R563.1;O657.3 文献标识码:A
文章编号:1003-5214 (2021) 07-1367-07 开放科学 (资源服务) 标识码 (OSID):
Preparation of two-photon fluorescence immunochromatographic strip
for rapid diagnosis of SARS-CoV-2 and cell-imaging
1
1,4
2,3
1
2,3
HUANG Chibao , YANG Bin , KANG Shuai , YANG Li , LYU Guoling , YU Fuxun 2,3*
(1. School of Information Engineering, Zunyi Normal University, Zunyi 563002, Guizhou, China; 2. Department of
Central Laboratory, Guizhou Provincial People's Hospital, Guiyang 550002, Guizhou, China; 3. NHC Key Laboratory
of Pulmonary Immunological Diseases, Guizhou Provincial People's Hospital, Guiyang 550002, Guizhou, China;
4. Henry Fok School of Biology and Agriculture, Shaoguan University, Shaoguan 512005, Guangdong, China)
Abstract: A two-photon fluorescence labelling probe LP was synthesized and characterized. LP-Ag was
obtained by labelling the N protein antigen (Ag) of SARS-CoV-2 with LP, and then the LP-Ag was made
into an immunochromatographic test strip (TPICS)/kit (TPICK). Clinical application results showed that
compared with those of nucleic acid method (PCR)/colloidal gold method, the positive coincidence rate,
negative coincidence rate and total coincidence rate of TPICS were 98.99%/98.10%, 99.55%/99.53% and
99.38%/99.06%, respectively. The consistency coefficient Kappa value (K) was 0.972/0.975. The
sensitivity, specificity and accuracy were 98.99%/98.10%, 99.55%/99.53% and 99.38%/99.06%,
respectively. The results of detection reagent and reference reagents were consistent (K > 0.75) without
statistical difference. The dilute blood sample used in TPICS/TPICK detection was generally 25~50 μL
(whole blood sample 5~10 μL), and the test time was within 10 min. This method avoided the
收稿日期:2021-03-02; 定用日期:2021-03-09; DOI: 10.13550/j.jxhg.20210211
基金项目:贵州省高层次创新型人才培养计划项目——“百”层次人才([2016]5683);贵州省科技支撑计划项目([2020]4Y001,
[2020]4Y004,[2018]2785);贵州省教育厅自然科学研究项目(KY[2019]068,KY[2018]028);国家自然科学基金(21562050,
[2019]81960001);贵州省第八批科技创新人才团队建设专项基金[(2015)4007];贵州省科学技术基金项目(黔科合 J 字[2015]2146);
贵州省教育厅自然科学重点研究项目(黔教合 KY 字[2014]296)
作者简介:黄池宝(1969—),男,教授,E-mail: huangchibao@163.com。联系人:余福勋(1965—),男,教授,E-mail: yufuxun@126.com。