• Laser & Optoelectronics Progress
  • Vol. 60, Issue 17, 1722001 (2023)
Bangchao Xi1,2,3,4, Jiayu Yang1,2,3,4, Shaolei Huang1,2,3,4, Haozheng Dai1,2,3,4..., Juntian Zeng1,2,3,4 and Dongxu Zhang1,2,3,4,*|Show fewer author(s)
Author Affiliations
  • 1School of Public Health, Xiamen University, Xiamen 361102, Fujian , China
  • 2State Key Laboratory of Molecular Vaccinology and Molecular Diagnostic(Xiamen University), Xiamen 361102, Fujian , China
  • 3National Institute of Diagnostics and Vaccine Development in Infection Diseases(Xiamen University), Xiamen 361102, Fujian , China
  • 4State Drug Administration Key Laboratory of Infectious Disease Detection Technology Research and Evaluation, Xiamen 361102, Fujian , China
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    DOI: 10.3788/LOP222231 Cite this Article Set citation alerts
    Bangchao Xi, Jiayu Yang, Shaolei Huang, Haozheng Dai, Juntian Zeng, Dongxu Zhang. A Straight-Axis Multi-Channel Optical Detection System for Nucleic Acid On-Site Detection[J]. Laser & Optoelectronics Progress, 2023, 60(17): 1722001 Copy Citation Text show less
    Schematic diagram of the orthogonal optical path structure
    Fig. 1. Schematic diagram of the orthogonal optical path structure
    Schematic diagram of light passing through optical components
    Fig. 2. Schematic diagram of light passing through optical components
    Schematic diagram of multi-channel integration and switching device
    Fig. 3. Schematic diagram of multi-channel integration and switching device
    Rapid amplification supporting device. (a) Microfluidic chip; (b) amplification heating light path; (c) optical fiber with linear spot; (d) physical map of multi-channel integration and switching device
    Fig. 4. Rapid amplification supporting device. (a) Microfluidic chip; (b) amplification heating light path; (c) optical fiber with linear spot; (d) physical map of multi-channel integration and switching device
    Block diagram of the hardware structure of the detection system
    Fig. 5. Block diagram of the hardware structure of the detection system
    Light Tools simulation. (a) Optical path structure; (b) spot size
    Fig. 6. Light Tools simulation. (a) Optical path structure; (b) spot size
    Test environment and conditions. (a) Fully automatic nucleic acid detection device; (b) internal structure diagram
    Fig. 7. Test environment and conditions. (a) Fully automatic nucleic acid detection device; (b) internal structure diagram
    Resolution comparison between the straight-axis multi-channel optical detection systems and commercial PCR instruments.(a) FAM; (b) HEX; (c) ROX
    Fig. 8. Resolution comparison between the straight-axis multi-channel optical detection systems and commercial PCR instruments.(a) FAM; (b) HEX; (c) ROX
    Channel crosstalk data histogram
    Fig. 9. Channel crosstalk data histogram
    Detection curves of straight-axis multi-channel optical detection systems. (a) Random result 1; (b) random result 2; (c) random result 3; (d) random result 4
    Fig. 10. Detection curves of straight-axis multi-channel optical detection systems. (a) Random result 1; (b) random result 2; (c) random result 3; (d) random result 4
    LEDCenter wavelength /nmHalf bandwidth /nmHalf-width value /(°)CompanyFluorescence channel
    NSPB510BS46520±15NICHIAFAM
    NSPG310B52035±15NICHIAHEX
    HSE575H-L51257535±12Huashang OptoelectronicsROX
    NSPR310S63515±15NICHIACY5
    Table 1. Parameters of LED
    Fluorescence channelDistance between LED and excitation lens /mmDistance between excitation lens and filter/mmDistance between fiber and emission lens /mmDistance between emission lens and filter /mm
    FAM7.77.37.64.3
    HEX7.77.37.64.3
    ROX7.17.37.64.3
    CY57.77.37.64.3
    Table 2. Parameters of optical path distance
    DyeFAMHEXROX
    ConcentrationHighModerateLowHighModerateLowHighModerateLow
    CV /%0.020.100.720.100.180.830.170.540.80
    Table 3. Fluorescent dye detection repeatability test results
    Bangchao Xi, Jiayu Yang, Shaolei Huang, Haozheng Dai, Juntian Zeng, Dongxu Zhang. A Straight-Axis Multi-Channel Optical Detection System for Nucleic Acid On-Site Detection[J]. Laser & Optoelectronics Progress, 2023, 60(17): 1722001
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