3D Nucleic Acid Matrix for In Situ Spatial Sequencing
Find Innovative SolutionsGenerate Solutions
Solution Overview
Problem
Current methods for detecting nucleic acids, such as RNA and proteins, fail to preserve their spatial orientation and cellular origin, as they involve extracting and amplifying nucleic acids on flat surfaces, making it impossible to identify their cellular origin.
Innovation Solution
A three-dimensional matrix is created where nucleic acids are covalently bound or cross-linked, allowing in situ amplification and sequencing, preserving their spatial orientation and enabling high-throughput sequencing of biological samples.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Ease of manufacture
If nucleic acids are extracted from their native environment for analysis, then amplification and sequencing can be performed, but the cellular origin and spatial orientation information is lost
Solution Approach 1:
The patent transitions from two-dimensional flat arrays to three-dimensional matrices for nucleic acid organization. This dimensional change enables preservation of spatial orientation information while maintaining amplification and sequencing capabilities. The 3D matrix structure allows nucleic acids to maintain their native spatial relationships in x, y, and z dimensions, solving the information loss problem while enabling high-throughput analysis.
Solution Approach 2:
The patent employs composite matrix materials that provide both structural support for spatial preservation and chemical functionality for nucleic acid amplification. The matrix combines materials with appropriate porosity, mechanical stability, and biochemical compatibility, enabling simultaneous achievement of spatial orientation preservation and molecular biology operations.
2Productivity
If nucleic acids are placed on flat array surfaces or beads, then high-throughput detection is enabled, but three-dimensional spatial information is collapsed
Solution Approach 1:
The patent explicitly addresses the limitation of flat arrays by implementing three-dimensional matrices. This allows nucleic acids to maintain their spatial coordinates in x, y, and z dimensions while still enabling high-throughput detection through systematic addressing and interrogation of the 3D structure, thus resolving the contradiction between throughput and spatial precision.
3Productivity
If nucleic acids are amplified in solution, then amplification efficiency is high, but spatial location information is lost
Solution Approach 1:
The patent segments the amplification process to occur in situ within the three-dimensional matrix rather than in bulk solution. This segmentation allows each nucleic acid location to be amplified independently while maintaining its spatial context, enabling both efficient amplification and spatial information preservation through localized reaction compartments.
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 three-dimensional matrix allows for prolonged information storage and read-out cycles, providing high-throughput sequencing and imaging of nucleic acids while maintaining their spatial orientation and cellular context.
Implementation Method 1
nucleic acids covalently bound into a matrix or into or to a matrix material. The nucleic acids may be co-polymerized with the matrix material or cross-linked to the matrix material or both
Implementation Method 2
The nucleic acids may then be amplified and sequenced in situ, i.e. within the matrix
Implementation Method 3
placing them on a flat array surface or beads for gene detecting via hybridization or sequencing
Data Source
AI summary
Methods of analyzing nucleic acids of a cell are provided.