Why is independent variable isolation important in multiplex nucleic acid detection?

Isolating each LAMP reaction in individual capillaries prevents cross-contamination and ensures that fluorescence signals correspond only to the intended target, enabling accurate attribution of amplification events to specific nucleic acid sequences.

How does capillary force-driven loading improve assay reproducibility in nucleic acid testing?

Capillary force enables automatic, uniform filling of each capillary with the LAMP reaction mixture, minimizing volumetric variability and ensuring consistent reaction conditions across all detection channels.

What quantitative measurement enables hit confirmation in this multiplex detection platform?

Fluorescence intensity extracted from 16-bit TIFF images at 532 nm wavelength provides a quantitative readout for comparing amplification strength across capillaries and setting positivity thresholds.

Why are no-primer control capillaries essential for cross-functional collaboration in assay development?

The two no-primer control capillaries (positions nine and ten) allow teams to distinguish true amplification from background fluorescence or contamination, supporting reliable data sharing between discovery and analytical groups.

What statistical analysis capability is required before implementing this platform for routine screening?

Teams must establish signal-to-noise thresholds and replicate variability assessments using blank and positive control capillaries to define cutoffs for calling amplification positive or negative in multiplex runs.

זיהוי ויזואלי של מספר חומצות גרעין ב מערך נימי

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Cited by 3

08:56 min

November 15th, 2017

10.3791/56597-v

November 15th, 2017

6.7K views

Jianwei Chen^*¹^,²^,³ , Ning Shao^*¹^,²^,³ , Jiaying Hu^*⁴ , Rong Li⁴ , Yuanshou Zhu¹^,²^,³ , Dabing Zhang⁴^,⁵ , Shujuan Guo¹^,²^,³ , Junhou Hui⁶ , Peng Liu⁶ , Litao Yang⁴ , Sheng-Ce Tao¹^,²^,³

¹Key Laboratory of Systems Biomedicine (Ministry of Education), Shanghai Center for Systems Biomedicine, Shanghai Jiao Tong University, ²State Key Laboratory of Oncogenes and Related Genes, ³School of Biomedical Engineering, Shanghai Jiao Tong University, ⁴Collaborative Innovation Center for Biosafety of GMOs, National Center for the Molecular Characterization of Genetically Modified Organisms, School of Life Sciences and Biotechnology, Shanghai Jiao Tong University, ⁵Key Laboratory of Crop Marker-Assisted Breeding of Huaian Municipality, Jiangsu Collaborative Innovation Center of Regional Modern Agriculture and Environmental Protection, ⁶Department of Biomedical Engineering, Collaborative Innovation Center for Diagnosis and Treatment of Infectious Diseases, School of Medicine, Tsinghua University

^* These authors contributed equally

פרוטוקול זה מתאר את הזיוף של קלטת קטן, מוכן לשימוש, שניתן להחיל לצורך זיהוי חזותי של מספר חומצות גרעין בבדיקה אחת, קלה לתפעול. בגישה זו, מערך נימי שימש לצורך זיהוי מולטיפלקס ויעיל מאוד של GMO מטרות.