3D Printed Biomaterials via Genetically Modified Cell Deposition
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Solution Overview
Problem
Current biomaterial production methods are slow, resource-intensive, and lack control over reproducibility and design, making it difficult to produce custom-designed biomaterials in mass quantities with uniform properties.
Innovation Solution
A method and system for three-dimensional construction of biomaterials involving the deposition of living cells in a predetermined pattern on a substrate, followed by immobilization, incubation, and separation to produce biomaterials, utilizing genetically modified cells like Saccharomyces cerevisiae and a 3D printing system for precise control over production.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Productivity
If traditional biomaterial production methods are used, then natural biomaterials can be produced, but production speed is slow and resource consumption is high
Solution Approach 1:
The production process is segmented into discrete steps: cell deposition in predetermined patterns, immobilization on substrates, controlled incubation, and separation. This segmentation allows for optimized control of each step, improving overall productivity while reducing resource waste through precise material allocation.
Solution Approach 2:
The invention changes key parameters by using genetically modified cells that can be induced to produce biomaterials on demand, transforming slow natural production into a controlled, rapid process. The use of cell cultures with modified metabolic pathways enables fast biomaterial synthesis without the resource overhead of supporting entire living organisms.
2Manufacturing precision
If complex biomaterials with inorganic components are produced naturally, then functional properties are achieved, but production time extends to days, months, or years
Solution Approach 1:
Cells are pre-engineered with the genetic capacity to produce specific biomaterials and inorganic components. This preliminary genetic modification eliminates the need for long natural growth periods, as the cells are already programmed to synthesize complex materials with desired functional properties when induced.
Solution Approach 2:
The invention replaces slow biological growth processes with controlled cellular synthesis mechanisms. Genetically modified cells are used as biological factories that can be induced to rapidly produce complex biomaterials with precise compositional control, substituting natural evolutionary timescales with engineered production rates.
3Reliability
If natural biomaterial production is used, then biomaterials can be obtained, but macro-scale uniformity and reproducibility are difficult to control
Solution Approach 1:
The invention applies local quality control by depositing cells in predetermined patterns and positions on substrates. Each localized region can be controlled to produce specific biomaterial compositions and structures, ensuring macro-scale uniformity through micro-scale precision. This spatial control enables reproducible results across the entire production system.
4Strength
If biomaterials with complex secondary and tertiary structures are produced, then scale- and directionally-dependent properties are achieved, but machining and incorporation into composites becomes challenging
Solution Approach 1:
The invention adds the dimension of spatial control by depositing cells in predetermined three-dimensional patterns on substrates. This approach creates biomaterials with built-in directional properties and complex structures that are inherently integrated into the final product geometry, eliminating the need for subsequent machining operations and simplifying incorporation into composites.
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 fast, controlled, and efficient production of custom-designed biomaterials with reduced resource overhead, achieving uniformity and scalability in biomaterial production.
Implementation Method 1
living cells that are configured for secreting, sequestering, or otherwise producing a selected biomaterial
Implementation Method 2
depositing, into a predetermined three-dimensional pattern on a substrate using a three-dimensional positioning and dispensing system, living cells
Implementation Method 3
immobilizing the deposited living cells such that the predetermined three-dimensional pattern is maintained
Implementation Method 4
incubating the immobilized living cells under conditions wherein the selected biomaterial is produced
Implementation Method 5
separating the cells from the bound biomaterial to result in the three-dimensional biomaterial product
Data Source
AI summary
This system combines 3D printing technology with artificially modified cells for production of nonliving biomaterials. A 3D printer deposits a 3D array of bioengineered cells in the shape of a selected product. The cells are programmed to produce biomaterials in regulated amounts. The cell array deposits biomaterials onto a substrate. The cells and substrate are then removed, leaving a finished, nonliving product with microscale structure and precision.