Optical Disc Bioassay Readout Using Standard Drive Error Mapping
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Solution Overview
Problem
Current methods for assessing bioassay results using disc-based bioassays require expensive and time-consuming hardware modifications of computer optical drives, and existing software techniques are technically challenging and inefficient.
Innovation Solution
A method utilizing conventional optical disc drives to assess bioassay results by recording data with error detection redundancy on optical discs, activating the polycarbonate surface with ozone and UV irradiation to bind biomolecules, and processing bioassay results to enhance detectability through size or color changes, allowing for error mapping and decoding.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Adaptability or versatility
If hardware modification is performed on commercial optical drives to enable bioassay assessment, then the capability to read disc-based bioassays is improved, but the device complexity and cost increase significantly
Solution Approach 1:
The patent uses the error detection and correction mechanisms already present in commercial optical drives to create a readable copy of the bioassay data. By encoding bioassay results into error patterns that mimic actual disc errors, the system leverages the existing error correction code (ECC) infrastructure of commercial drives without requiring any hardware modification.
Solution Approach 2:
The patent makes commercial optical drives universally applicable to disc-based bioassays by using their existing error detection capabilities. The same drive that reads standard data discs can also assess bioassay results by interpreting error patterns, eliminating the need for specialized hardware.
2Adaptability or versatility
If comprehensive hardware modification is performed on optical drives, then the functionality for bioassay detection is improved, but the time and cost required for implementation increases
Solution Approach 1:
The patent creates a software-based solution that copies the error detection functionality already present in commercial drives. This approach eliminates the time-consuming process of hardware modification while maintaining full bioassay detection capability through software interpretation of error patterns.
3Ease of operation
If software techniques are used to analyze digital signals from optical drives, then the capability to assess bioassays without hardware modification is improved, but the technical complexity and practicality decrease
Solution Approach 1:
The patent introduces an intermediary encoding layer that translates bioassay results into error patterns recognizable by commercial drive software. This intermediary representation (errors in readable data) bridges the gap between simple drive operation and complex bioassay analysis, making the system both easy to operate and technically feasible.
4Measurement precision
If error detection redundancy is used to encode bioassay results, then the sensitivity and accuracy of detection is improved, but the data processing complexity increases
Solution Approach 1:
The patent employs the optical drive's own error detection and correction mechanisms to assess bioassay results. The drive automatically detects and reports errors in the encoded data, eliminating the need for external complex analysis systems. The error patterns themselves serve as the measurement signal.
Applied Scientific Principles
This section explains which scientific principles are used to turn an abstract innovation direction into a practical engineering solution.
Function Achieved in This Case
Enables cost-effective, non-invasive assessment of bioassay results using standard optical disc drives without modification, improving sensitivity and reducing costs by utilizing error detection and mapping techniques to identify positive and negative assay sites.
Implementation Method 1
activating the polycarbonate surface with ozone and UV irradiation to bond biomolecules
Data Source
AI summary
Methods and systems are described for assessing the results of a bioassay between probe biomolecules and target biomolecules using a conventional optical disc drive. Particular methods involve: bonding the probe biomolecules to a polycarbonate (PC) surface of an optical disc having digital data comprising error-detection redundancies recorded thereon; introducing the target biomolecules to the PC surface of the optical disc in a vicinity of the bonded probe biomolecules; processing the bioassay to alter a manner in which a read light from the optical disc drive interacts optically with the optical disc in a vicinity of positive bioassay results where the target biomolecules have bonded to the probe biomolecules; reading the digital data from the optical disc using the optical drive and using the error-detection redundancies to detect errors in the digital data read by the optical drive; mapping the detected errors to corresponding locations on the optical disc; and determining that positive bioassay results have occurred at the locations of the detected errors.