Paper-Based Microarray Chip for Rapid HPV Detection

The patent employs disposable microarray chips with pre-immobilized capture probes that can be discarded after a single use. This eliminates the need for expensive, complex instrumentation by using low-cost, single-use diagnostic units that integrate sample processing and detection, thereby maintaining high sensitivity while reducing device complexity and cost.

The patent extracts the complex instrumentation requirements from the detection system and replaces them with simplified sample-to-answer cartridges. The microarray chip design separates capture, detection, and waste regions into distinct functional zones, allowing the removal of sophisticated laboratory equipment while preserving diagnostic accuracy through integrated on-chip processing.

The patent merges multiple diagnostic steps (sample preparation, nucleic acid amplification, and detection) into a single integrated microarray chip workflow. By combining these functions in one device with automated fluid handling and on-chip processing, the system achieves both high detection accuracy and rapid results, reducing turnaround time while maintaining molecular-level diagnostic precision.

The patent implements continuous automated processing through the microarray chip design, where sample lysis, nucleic acid release, hybridization, and detection occur in continuous sequence without manual intervention or waiting periods. This continuous action eliminates idle time between steps, maintaining high detection accuracy while significantly reducing overall turnaround time.

The patent uses disposable microarray chips that eliminate the need for expensive, maintainable laboratory infrastructure. Each chip is a low-cost, single-use unit that performs high-sensitivity detection without requiring sophisticated equipment, thereby reducing resource requirements while maintaining high test sensitivity through integrated on-chip processing.

The microarray chip design enables self-service operation where the chip itself performs sample processing, nucleic acid amplification, and detection without requiring external sophisticated equipment or highly trained personnel. The chip's integrated design handles all complex functions autonomously, reducing resource requirements while maintaining high sensitivity through built-in capture and detection mechanisms.

The patent changes the detection parameter from traditional immunochromatographic methods to nucleic acid hybridization on microarrays. This parameter change enables rapid detection speed through automated on-chip processing while maintaining high specificity through sequence-specific probe hybridization, overcoming the limitation of conventional rapid tests that sacrifice accuracy for speed.

The patent replaces the mechanical reading systems of traditional rapid tests with optical detection of fluorescent or chemiluminescent signals from nucleic acid hybridization. This substitution maintains rapid detection speed while dramatically improving specificity through molecular-level recognition, allowing visual or automated readout of highly specific nucleic acid-probe interactions.