Super-Resolution Molecular Barcoding for Single-Cell Analysis
Find Innovative SolutionsGenerate Solutions
Solution Overview
Problem
Current methods for analyzing biological systems at both microscopic and macroscopic scales are resource-intensive and inefficient, lacking the ability to systematically understand molecular interactions with high resolution and economy.
Innovation Solution
A method involving the association of cellular constituents with probes labeled to emit signals, utilizing super-resolution technologies to create molecular indicia that can identify biological states with resolutions better than 25 nm, allowing for efficient analysis of cellular constituents like mRNA, DNA, and proteins in intact cells.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Measurement precision
If conventional microscopy methods are used to analyze cellular constituents, then the analysis can be performed with standard equipment, but the resolution is limited by the diffraction limit (approximately 200-300 nm) and resource consumption is high
Solution Approach 1:
The invention segments the cellular analysis process into two distinct stages: (1) macroscopic multiplexed probe association with cellular constituents using conventional microscopy, and (2) microscopic super-resolution imaging of the molecular indicia. This segmentation allows each stage to operate at its optimal resolution and resource efficiency level, resolving the contradiction between measurement precision and productivity.
Solution Approach 2:
The invention transitions from two-dimensional conventional microscopy to three-dimensional super-resolution imaging by introducing the dimension of molecular-scale spatial information. The molecular indicia serve as bridges between the macroscopic probe distribution and the microscopic molecular positions, enabling resolution beyond the diffraction limit without proportionally increasing resource consumption.
2Measurement precision
If super-resolution technologies are used to achieve high resolution imaging, then molecular interactions can be resolved at 25 nm or better, but the resource consumption and complexity increase significantly
Solution Approach 1:
The invention introduces molecular indicia as intermediary structures that mediate between the macroscopic probes and the microscopic molecular targets. These indicia serve as resolvable proxies that can be detected by super-resolution microscopy without requiring direct imaging of the molecular constituents themselves, thereby reducing system complexity while maintaining high measurement precision.
Solution Approach 2:
The invention creates simplified optical copies (molecular indicia) of the molecular constituents that can be resolved by super-resolution microscopy. Instead of directly imaging the complex molecular structures, the system creates resolvable indicator patterns that represent the molecular positions and interactions, reducing the complexity of the imaging system while achieving high resolution.
3Productivity
If macroscopic analysis methods are used to study molecular interactions, then large-scale systematic analysis can be performed, but the molecular-level details and high-resolution interactions cannot be captured
Solution Approach 1:
The invention merges macroscopic multiplexed analysis capabilities with microscopic super-resolution imaging by combining probe-based molecular identification with high-resolution spatial mapping. The molecular indicia enable simultaneous achievement of large-scale systematic analysis and molecular-level detail capture, resolving the contradiction between analysis throughput and molecular resolution.
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 high-throughput, multiplex detection of molecular species in single cells with single molecule precision, overcoming the diffraction limit and providing unprecedented resolution in molecular interactions, suitable for various cellular types including bacteria, yeast, and human cells.
Implementation Method 1
each of the plurality of probes is attached with a label that is capable of emitting a signal
Data Source
AI summary
Methods and systems are provided for creating molecular barcodes or indicia for cellular constituents within single cells and for resolving such barcodes or indicia with super resolution technologies such as super resolution microscopy. By this approach, numerous molecular species that can be measured simultaneously in single cells. It has been demonstrated that multiple mRNA transcripts can be labeled with a spatially ordered sequence of fluorophores, and that barcode can be resolved. The methods and systems can be used for genome-wide transcriptional profiling in individual cells by super-resolution barcoding and suggest a general strategy to bring large-scale-omics approach into single cells.