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Interpretable Deep Learning for Single-Molecule Nanopore Fingerprinting Using Physics-Guided Preprocessing
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DOI：10.1021/acssensors.5c04784.png)
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Abstract
En 中文
Rapid and robust molecular fingerprinting is critical in biomanufacturing, diagnostics, and environmental monitoring. Nanopore sensing provides single-molecule readouts as transient ionic current pulses; however, conventional analyses depend on handcrafted features that miss informative structural information. We present an interpretable machine learning framework that operates directly on raw pulses, pairing a physics-guided time−frequency transform with a compact neural classifier and feature-attribution maps. We also include conventional feature-based SVMs and a 1D classifier trained on raw pulses as baselines. On two self-assembled DNA nanostructures of similar size but distinct geometry, for which standard pulse features overlap, the method achieves high accuracy and yields physically consistent attributions that highlight discriminative signal motifs. A matched control without the time−frequency transform clarifies when learned filters suffice versus when physics-guided preprocessing improves reliability, leading to a practical “custom-filter” design principle. The workflow is modular, lightweight, and applicable to pulse-based sensing platforms, including virus and exosome analysis, electrochemical monitoring, and industrial fault detection. By combining accuracy with transparency, it lays the groundwork for deployable sensing platforms in regulated, mission-critical settings.
Keywords:
Genetics
Layers
Nanopores
Nanostructures
Neural networks
nanopore sensing
DNA nanostructures
single-molecule fingerprinting
machine learning
explainable AI
wavelet transform
signal processing
convolutional neural networks
Journal
IF:
9.1
Papers:
976
Citations:
2.6W