Norovirus-Binding Peptides for Sensitive Detection and Infection Control
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Solution Overview
Problem
Current methods for detecting norovirus, such as electron microscopy, antibody-based detection, and RNA amplification, are complex, time-consuming, costly, and have low specificity, while norovirus antibodies are unstable and expensive.
Innovation Solution
Development of norovirus-binding peptides with high affinity, composed of specific amino acid sequences, for sensitive detection and infection control, using a cDNA display method to identify peptides that bind specifically to norovirus.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Measurement precision
If antibody-based detection is used, then detection sensitivity is improved, but manufacturing cost increases and quality stability deteriorates
Solution Approach 1:
The patent uses peptides that replicate the binding function of antibodies but are synthesized chemically rather than produced biologically. These peptide probes copy the specific antigen-binding capability of antibodies while avoiding the complexity and cost of antibody production through chemical synthesis methods
Solution Approach 2:
The patent employs peptides with shorter half-lives that can be rapidly synthesized and discarded after use, replacing expensive, long-lived antibodies. The peptides are produced through cost-effective chemical synthesis rather than expensive animal or cell culture processes, making them economically advantageous despite shorter operational lifetimes
2Measurement precision
If RNA amplification method is used, then detection sensitivity is improved, but operation complexity increases and detection time extends
Solution Approach 1:
The patent extracts only the essential detection function from complex RNA amplification processes by using peptides that bind directly to norovirus antigens. This eliminates the need for reverse transcription, amplification cycles, and complex instrumentation, reducing operational complexity while maintaining detection capability
Solution Approach 2:
The patent skips the time-consuming RNA extraction, reverse transcription, and amplification steps by using peptide-based direct antigen detection. This allows rapid binding and detection without proceeding through the multiple intermediate steps required by RT-PCR methods
3Ease of operation
If previously reported norovirus peptide is used, then detection simplicity is improved, but bonding strength deteriorates
Solution Approach 1:
The patent optimizes peptide parameters including amino acid sequence, length, and chemical composition to enhance binding affinity. By systematically varying these parameters and selecting peptides with higher affinity for norovirus antigens, the bonding strength is improved while maintaining the simplicity of peptide-based detection
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
The peptides enable rapid, cost-effective, and sensitive detection of norovirus, and can be used to inhibit virus binding to cells, providing a prophylactic and therapeutic approach.
Implementation Method 1
a norovirus-binding peptide consisting of an amino acid sequence selected from the group consisting of SEQ ID NOs: 1 to 327
Data Source
AI summary
A peptide that specifically binds to norovirus, which is useful for detection and infection control of norovirus is provided. A norovirus-binding peptide consisting of an amino acid sequence selected from the group consisting of SEQ ID NOs: 1 to 327.