Microscale Condenser Arrays for High-Throughput Particle Purification
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Solution Overview
Problem
Current microfluidic technologies, such as nanoDLD and nCA, face low flow rates due to nanoscale dimensional confinement effects, limiting their ability to process samples efficiently for further analysis, especially in lab-on-a-chip applications where rapid and precise purification of small quantities is required.
Innovation Solution
The development of microscale and mesoscale condenser arrays with a lattice structure of pillars, which laterally displace fluid flow to increase throughput, allowing for higher fluid output rates and efficient particle purification across a broad size band while maintaining low fluidic resistance.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Measurement precision
If nanoscale dimensional confinement effects are used in microfluidic technologies, then particle purification precision is improved, but flow rate decreases
Solution Approach 1:
The patent changes the characteristic dimension parameter from nanoscale to microscale/mesoscale range. By increasing the pillar size and gap dimensions while maintaining the lattice structure, the device achieves both adequate purification precision and significantly improved flow rates exceeding 1.0 nanoliters per hour.
Solution Approach 2:
The patent transitions from two-dimensional nanoscale confinement to three-dimensional microscale/mesoscale lattice structures. This dimensional expansion allows fluid to flow through multiple parallel pathways, increasing overall throughput while maintaining separation effectiveness through the lattice geometry.
2Productivity
If microscale and mesoscale condenser arrays are used, then throughput is improved, but device complexity increases
Solution Approach 1:
The device is segmented into multiple identical lattice units arranged in series. Each unit consists of repeating pillar patterns that can be manufactured using standardized processes. This modular segmentation achieves high throughput through parallel flow pathways while controlling complexity through repetition and standardization.
Solution Approach 2:
The patent uses copying by replicating the same lattice structure multiple times in sequence. Instead of designing complex unique features, the same pillar arrangement is copied across many units, simplifying manufacturing while achieving the required throughput through cumulative flow capacity.
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 solution enables microfluidic separation and purification at rates greater than 1.0 nanoliters per hour, facilitating the preparation of samples for analysis by increasing the throughput of microscale and mesoscale particles, thus addressing the limitations of existing technologies.
Implementation Method 1
The plurality of pillars can define a lattice that laterally displaces a fluid flowing through the condenser array
Data Source
AI summary
Microscale and/or mesoscale condenser arrays that can facilitate microfluidic separation and/or purification of mesoscale and/or nanoscale particles and methods of operation are described herein. An apparatus comprises a condenser array comprising pillars arranged in a plurality of columns, wherein a pillar gap greater than or equal to about 0.5 micrometers is located between a first pillar of the pillars in a first column of the columns and a second pillar of the plurality of pillars in the first column, and wherein the first pillar is adjacent to the second pillar. The first ratio can be characterized by Dx/Dy is less than or equal to a first defined value, wherein Dx represents a first distance across the lattice in a first direction, wherein Dy represents a second distance across the lattice in a second direction, and wherein the first direction is orthogonal to the second direction.