SMDA Isolation via Selective Binding and Lysis
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Solution Overview
Problem
Current methods for isolating and analyzing target analytes encapsulated by surface marker displaying agents (SMDAs) face challenges such as co-purification of non-vesicular proteins and contaminants, difficulty in separating SMDA-associated proteins from soluble or aggregated forms, and the need for scalable and automated processes.
Innovation Solution
A method involving a support surface with binding domains where SMDAs selectively bind, allowing for the removal of unwanted components, lysis to release target analytes, and subsequent capture using specific reagents, enabling efficient isolation and quantification of encapsulated analytes.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Productivity
If differential ultracentrifugation is used for EV isolation, then the method is low-cost and high-throughput, but co-purification of non-vesicular proteins and contaminants occurs
Solution Approach 1:
The isolation process is divided into multiple sequential steps: initial differential ultracentrifugation for bulk recovery, followed by selective binding to capture SMDAs, lysis to release encapsulated cargo, and affinity chromatography for final purification. This segmentation allows each step to optimize for different objectives, maintaining high throughput while improving purity.
Solution Approach 2:
A selective binding agent acts as an intermediary between the SMDA surface markers and the affinity chromatography column. This intermediary enables specific capture of SMDAs based on their surface markers, separating them from non-vesicular proteins and contaminants while maintaining the high-throughput capability of the overall process.
2Device complexity
If traditional isolation methods are used, then the process is simple, but separation of SMDA-associated proteins from soluble or aggregated forms is difficult
Solution Approach 1:
The method extracts the encapsulated cargo from SMDAs through controlled lysis, separating it from both the SMDA membrane structure and from soluble or aggregated proteins in the sample. This extraction step is followed by affinity chromatography that specifically captures the released cargo based on its binding properties, achieving high purity separation.
Solution Approach 2:
The affinity chromatography column serves as an intermediary that selectively interacts with the encapsulated cargo through specific binding domains, while allowing SMDA-associated proteins and soluble contaminants to pass through. This intermediary mechanism enables precise separation based on molecular binding characteristics rather than just size or charge.
3Adaptability or versatility
If manual analysis methods are used, then the process is flexible, but scalability and automation are limited
Solution Approach 1:
The affinity chromatography system is designed with universal binding domains that can be configured to capture different types of SMDAs and their encapsulated cargo through a single platform. The modular design allows the same basic system to handle various analytes by simply changing the binding domain specificity, providing both flexibility and scalability.
Solution Approach 2:
The system employs spontaneous binding interactions between the binding domains on the chromatography column and the surface markers or encapsulated cargo molecules. This self-service mechanism eliminates the need for complex manual manipulation, allowing the process to be automated while maintaining high flexibility through programmable binding domain selection.
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
This method provides a high-throughput, scalable, and automated approach to isolate and quantify target analytes from SMDAs, effectively separating encapsulated from non-encapsulated components, enhancing the accuracy and efficiency of analysis.
Implementation Method 1
the support surface includes a plurality of binding domains and the SMDA selectively binds to a SMDA binding domain on the support surface
Implementation Method 2
contacting the support surface with a lysis reagent to lyse the immobilized SMDA and release the encapsulated target analyte
Implementation Method 3
the target analyte selectively binds to a target analyte binding domain on the support surface
Data Source
AI summary
Method and kits for highly specific detection and isolation of a target analyte encapsulated by a surface marker displaying agent (SMDA) are disclosed.