• Chinese Journal of Lasers
  • Vol. 51, Issue 9, 0907013 (2024)
Qin Huang, Leyang Huang, Xiangyu Jin, Zeyin Mao, Anni Deng, Lü Wenqi, Hao Zhong, Shihong Wang, Yixuan Shi, Jiahui Chen, Shiguang Huang, and Guoliang Huang*
Author Affiliations
  • Department of Biomedical Engineering, School of Medicine, Tsinghua University, Beijing 100084, China
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    DOI: 10.3788/CJL231461 Cite this Article Set citation alerts
    Qin Huang, Leyang Huang, Xiangyu Jin, Zeyin Mao, Anni Deng, Lü Wenqi, Hao Zhong, Shihong Wang, Yixuan Shi, Jiahui Chen, Shiguang Huang, Guoliang Huang. Fully Integrated Nucleic Acid Analysis System Based on Syringe-Microfluidic Chip and Application of Precision Medicine[J]. Chinese Journal of Lasers, 2024, 51(9): 0907013 Copy Citation Text show less
    Structure and sectional view of the nucleic acid extraction syringe and microfluidic chip detection system
    Fig. 1. Structure and sectional view of the nucleic acid extraction syringe and microfluidic chip detection system
    Schematic diagram of nucleic acid extraction process by a syringe structure nucleic acid extraction system
    Fig. 2. Schematic diagram of nucleic acid extraction process by a syringe structure nucleic acid extraction system
    Design, physical pictures and working principle of the microfluidic chip. (a) Design of the substrate and primer embedding sequence; (b) physical picture of the microfluidic chip and its working principle. C. alb-L, C. gla-L, C. par-L, and C. tro-L represent the types of primers embedded in the reaction chamber. LAMP reaction reagent is transparent in real, and red pigment is added here to indicate the location of the amplification reagent on the chip. PC, positive control; NC, negative control; No., serial number
    Fig. 3. Design, physical pictures and working principle of the microfluidic chip. (a) Design of the substrate and primer embedding sequence; (b) physical picture of the microfluidic chip and its working principle. C. alb-L, C. gla-L, C. par-L, and C. tro-L represent the types of primers embedded in the reaction chamber. LAMP reaction reagent is transparent in real, and red pigment is added here to indicate the location of the amplification reagent on the chip. PC, positive control; NC, negative control; No., serial number
    Structural diagram and physical picture of the temperature control module. (a) Hierarchical diagram of the temperature control module; (b) structural diagram of the temperature control module; (c) physical picture of the temperature control module
    Fig. 4. Structural diagram and physical picture of the temperature control module. (a) Hierarchical diagram of the temperature control module; (b) structural diagram of the temperature control module; (c) physical picture of the temperature control module
    Structural diagram and physical picture of the fluorescence detection module. (a) Structural diagram; (b) physical picture
    Fig. 5. Structural diagram and physical picture of the fluorescence detection module. (a) Structural diagram; (b) physical picture
    Diagram of microfluidic chip nucleic acid amplification and detection system
    Fig. 6. Diagram of microfluidic chip nucleic acid amplification and detection system
    Physical picture of syringe-microfluidic chip based nucleic acid extraction and detection system
    Fig. 7. Physical picture of syringe-microfluidic chip based nucleic acid extraction and detection system
    Detection parameterContent
    Fully integrated systemKit method
    Manual steps110+3
    Time consuming /min10~60
    Average Ct value /min20.924.4
    Standard deviation(SD)/min1.31.5
    Coefficient of variation(CV)value /%6.226.14
    Table 1. Detection analysis of the fully integrated nucleic acid analysis system versus kit method
    Test MethodPathogenCulture methodTotalPχ2

    Kappa

    value

    C. albC.glaC.parC.troNegative

    method

    Fully integrated

    C.alb2300002310.950
    C.gla080008
    C.par001001
    C.tro000404
    Negative20002628
    Total258142664
    Table 2. Comparison of clinical test results of fully integrated method and culture method for four fungi
    Qin Huang, Leyang Huang, Xiangyu Jin, Zeyin Mao, Anni Deng, Lü Wenqi, Hao Zhong, Shihong Wang, Yixuan Shi, Jiahui Chen, Shiguang Huang, Guoliang Huang. Fully Integrated Nucleic Acid Analysis System Based on Syringe-Microfluidic Chip and Application of Precision Medicine[J]. Chinese Journal of Lasers, 2024, 51(9): 0907013
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