Citation:
SUN Jing-Jing, SONG Qi, MU Ying. Microfluidic Chip for Methamphetamine Detection Based on Time-resolved Fluoroimmunoassay[J]. Chinese Journal of Analytical Chemistry,
;2018, 46(7): 1116-1121.
doi:
10.11895/j.issn.0253-3820.181216
-
A novel polydimethylsiloxane (PDMS)-poly-L-lysine (PLL) microfluidic chip, comprised of 24 reaction channels with 2.5 μL volume of each reaction channel only, was proposed for quantitative analysis of methamphetamine (MET) based on time-resolved immunoassay techniques. The chip utilized the adsorption characteristics of PDMS and PLL towards proteins to immobilize MET complete antigens (MET-BSA) on the surface of reaction channel. Then the competition reaction could happen between MET-Ag in the sample solution and MET-BSA on the inner surfaces of the reaction channels with MET-Ab in the reagent. The surface of latex microspheres was labeled by lanthanide, which could emit red fluorescence under the exposure of ultraviolet (UV). Based on the principle of competitive immunoassay, the more MET-Ag, the less the fluorescence intensity in the reaction channel. The detection results of this chip were acquired using UV-irradiation fluorescence imaging method. With this method, 24 samples could be detected and analyzed simultaneously on a chip by just taking the fluorescence image of the chip. The method allows the detection of MET antigens ranging from 100 ng/mL to 3000 ng/mL, with less sample consumption and high-throughput. This chip is suitable for the police preliminary screening work and has a good application prospects.
-
-
-
[1]
-
[2]
-
[3]
-
[4]
-
[5]
-
[6]
-
[7]
-
[8]
-
[9]
-
[10]
-
[11]
-
[12]
-
[13]
-
[14]
-
[15]
-
[16]
-
[17]
-
[18]
-
[19]
-
[20]
-
[1]
-
-
-
[1]
Min Gu , Huiwen Xiong , Liling Liu , Jilie Kong , Xueen Fang . Rapid Quantitative Detection of Procalcitonin by Microfluidics: An Instrumental Analytical Chemistry Experiment. University Chemistry, 2024, 39(4): 87-93. doi: 10.3866/PKU.DXHX202310120
-
[2]
Jinghui Zhang , Wei Shen , Sheng Tang , Ru Jia , Wei Zhong . Exploration and Reflection on Interdisciplinary Teaching of Analytical Chemistry in the New Era of International Competition. University Chemistry, 2025, 40(7): 1-9. doi: 10.12461/PKU.DXHX202408019
-
[3]
Liqiang Huang , Peng Lin . 数-图分析法解释仪器分析实验课程教学中的难点. University Chemistry, 2025, 40(6): 353-359. doi: 10.12461/PKU.DXHX202407074
-
[4]
Fan Yu , Aihua Li , Yun Liu , Tianrong Zhu , Liang Wang , Junhui Xu , Yazhen Wang . Exploration and Practice in Developing a Premier Course in Inorganic and Analytical Chemistry. University Chemistry, 2024, 39(8): 36-43. doi: 10.3866/PKU.DXHX202312037
-
[5]
Yuan Zhuang , Wenhui Li , Jie Li . Curriculum Reform of “Chemical Composition Analysis of Materials” under Background of First-Class Discipline Construction. University Chemistry, 2025, 40(5): 283-290. doi: 10.12461/PKU.DXHX202407070
-
[6]
Yuan Zheng , Quan Lan , Zhenggen Zha , Lingling Li , Jun Jiang , Pingping Zhu . Teaching Reform of Organic Synthesis Experiments by Introducing Reverse Thinking and Design Concepts: Taking the Synthesis of Cinnamic Acid Based on Retrosynthetic Analysis as an Example. University Chemistry, 2024, 39(6): 207-213. doi: 10.3866/PKU.DXHX202310065
-
[7]
Mi Wen , Baoshuo Jia , Yongqi Chai , Tong Wang , Jianbo Liu , Hailong Wu . Improvement of Fluorescence Quantitative Analysis Experiment: Simultaneous Determination of Rhodamine 6G and Rhodamine 123 in Food Using Chemometrics-Assisted Three-Dimensional Fluorescence Method. University Chemistry, 2025, 40(4): 390-398. doi: 10.12461/PKU.DXHX202405147
-
[8]
Yan Yuan , Haitao Wu , Yi Zhang , Li Jiang , Feng Cao , Yanmao Dong . Research on the Talent Training System to Enhance the Core Competence of Employment for Undergraduate Students Majoring in Materials Chemistry. University Chemistry, 2024, 39(11): 52-56. doi: 10.12461/PKU.DXHX202402015
-
[9]
Ruoxi Sun , Yiqian Xu , Shaoru Rong , Chunmiao Han , Hui Xu . The Enchanting Collision of Light and Time Magic: Exploring the Footprints of Long Afterglow Lifetime. University Chemistry, 2024, 39(5): 90-97. doi: 10.3866/PKU.DXHX202310001
-
[10]
Zhou Fang , Zhihao Zhang , Weihan Jiang , Kin Shing Chan . Warfarin: From Poison to Cure, the Remarkable Journey of a Molecule. University Chemistry, 2025, 40(4): 326-330. doi: 10.12461/PKU.DXHX202406038
-
[11]
Rui Gao , Ying Zhou , Yifan Hu , Siyuan Chen , Shouhong Xu , Qianfu Luo , Wenqing Zhang . Design, Synthesis and Performance Experiment of Novel Photoswitchable Hybrid Tetraarylethenes. University Chemistry, 2024, 39(5): 125-133. doi: 10.3866/PKU.DXHX202310050
-
[12]
Zeyu XU , Anlei DANG , Bihua DENG , Xiaoxin ZUO , Yu LU , Ping YANG , Wenzhu YIN . Evaluation of the efficacy of graphene oxide quantum dots as an ovalbumin delivery platform and adjuvant for immune enhancement. Chinese Journal of Inorganic Chemistry, 2024, 40(6): 1065-1078. doi: 10.11862/CJIC.20240099
-
[13]
Qin Tu , Anju Tao , Tongtong Ma , Jinyi Wang . Innovative Experimental Teaching of Escherichia coli Detection Based on Paper Chip. University Chemistry, 2024, 39(6): 271-277. doi: 10.3866/PKU.DXHX202309062
-
[14]
Zhibei Qu , Changxin Wang , Lei Li , Jiaze Li , Jun Zhang . Organoid-on-a-Chip for Drug Screening and the Inherent Biochemistry Principles. University Chemistry, 2024, 39(7): 278-286. doi: 10.3866/PKU.DXHX202311039
-
[15]
Jianan Hong , Chenyu Xu , Yan Liu , Changqi Li , Menglin Wang , Yanwei Zhang . 通过边缘活性位点调控解析光热催化中析氢与二氧化碳还原的界面竞争. Acta Physico-Chimica Sinica, 2025, 41(9): 100099-. doi: 10.1016/j.actphy.2025.100099
-
[16]
Gaofeng Zeng , Shuyu Liu , Manle Jiang , Yu Wang , Ping Xu , Lei Wang . Micro/Nanorobots for Pollution Detection and Toxic Removal. University Chemistry, 2024, 39(9): 229-234. doi: 10.12461/PKU.DXHX202311055
-
[17]
Hui Shi , Shuangyan Huan , Yuzhi Wang . Ideological and Political Design of Potassium Permanganate Oxidation-Reduction Titration Experiment. University Chemistry, 2024, 39(2): 175-180. doi: 10.3866/PKU.DXHX202308042
-
[18]
Zhenlin Zhou , Siyuan Chen , Yi Liu , Chengguo Hu , Faqiong Zhao . A New Program of Voltammetry Experiment Teaching Based on Laser-Scribed Graphene Electrode. University Chemistry, 2024, 39(2): 358-370. doi: 10.3866/PKU.DXHX202308049
-
[19]
Feng Liang , Desheng Li , Yuting Jiang , Jiaxin Dong , Dongcheng Liu , Xingcan Shen . Method Exploration and Instrument Innovation for the Experiment of Colloid ζ Potential Measurement by Electrophoresis. University Chemistry, 2024, 39(5): 345-353. doi: 10.3866/PKU.DXHX202312009
-
[20]
Wei Peng , Baoying Wen , Huamin Li , Yiru Wang , Jianfeng Li . Exploration and Practice on Raman Scattering Spectroscopy Experimental Teaching. University Chemistry, 2024, 39(8): 230-240. doi: 10.3866/PKU.DXHX202312062
-
[1]
Metrics
- PDF Downloads(12)
- Abstract views(443)
- HTML views(62)