Cell Encapsulation Well Plate for Consistent Tissue Graft Scaling
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Solution Overview
Problem
Conventional approaches have struggled to recreate functional tissues at a necessary scale for therapeutic efficacy by effectively forming and encapsulating cell aggregates in biocompatible scaffolds, while maintaining biological conditions and minimizing variation between grafts.
Innovation Solution
A device comprising a well plate with indexed mold floor and protrusions is used to encapsulate cell aggregates within a biocompatible scaffold, allowing for controlled polymerization and easy ejection of encapsulated grafts for downstream use.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Manufacturing precision
If conventional approaches are used to form cell aggregates and encapsulate them in scaffolds, then tissue grafts can be created, but the scale and consistency necessary for therapeutic efficacy cannot be achieved
Solution Approach 1:
The device segments the tissue production process into individual well compartments, where each well serves as an independent micro-reactor for forming cell aggregates and encapsulating them in scaffolds. This segmentation enables parallel processing of multiple grafts simultaneously, achieving both scale and consistency through standardized replication across numerous identical reaction chambers.
Solution Approach 2:
The invention controls and standardizes critical parameters including well geometry, scaffold concentration, cell aggregate size, and polymerization conditions. By precisely controlling these parameters across all wells, the device achieves reproducible graft characteristics necessary for therapeutic consistency while scaling production through multi-well formats.
2Reliability
If cell aggregates are encapsulated in biocompatible scaffolds, then functional tissues can be created, but variation between grafts increases
Solution Approach 1:
The device ensures that each well provides an identical local environment for graft formation, with standardized well dimensions, scaffold distribution, and cell aggregate positioning. This local uniformity across all wells guarantees that each graft develops under the same controlled conditions, minimizing variation while maintaining functional tissue properties.
Solution Approach 2:
The well plate design creates a universal platform where identical protocols and conditions apply to all wells simultaneously. This universality ensures that the same fabrication process generates consistent grafts across the entire plate, reducing batch-to-batch and well-to-well variation while maintaining therapeutic functionality.
3Ease of operation
If manual manipulation methods are used for graft handling, then encapsulated tissue can be transferred, but damage occurs during manipulation and packaging
Solution Approach 1:
The device creates standardized grafts in identical well configurations that can be systematically transferred as copies to storage or implantation locations. This standardized format enables automated or semi-automated handling where grafts are moved en masse rather than individually, minimizing mechanical stress and damage while maintaining ease of operation through systematic transfer protocols.
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 device facilitates the formation of consistent tissue grafts by encapsulating cell aggregates in a biocompatible scaffold, enabling scalable and damage-free manipulation and packaging for therapeutic applications.
Implementation Method 1
introducing a polymerizing agent into the one or more wells to polymerize the biocompatible scaffold, thereby encapsulating the population of aggregates
Data Source
AI summary
Featured is a device for encapsulating cells and aggregates thereof. Also featured are methods of encapsulating aggregates including, e.g., parenchymal cells (e.g., hepatocytes) and stromal cells, in a biocompatible scaffold.