Optical Analysis Ink Structure with Dual-Slope Resin-Pigment Composite
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Solution Overview
Problem
Existing optical analysis structures face challenges in controlling the movement of samples due to permeation through pigment-based structures and overflow issues with resin-based structures, leading to inconsistent optical measurement results.
Innovation Solution
A structure for optical analysis is developed, featuring a support with an ink structure composed of a pigment-based ink and a resin-based ink, where the ink structure includes a first component forming the body and a second component at the lower side surface with distinct slopes, enhancing lipophilicity and preventing sample overflow, and incorporating a curing agent and retardant for improved transmittance.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If a pigment structure is used to form the ink structure, then the ink structure can be formed, but sample permeation through holes occurs
Solution Approach 1:
The patent combines pigment-based ink and resin-based ink to form a composite ink structure. The pigment-based ink provides structural formation while the resin-based ink fills gaps and reduces permeation, creating a material composite that resolves the contradiction between structure formation and sample containment.
Solution Approach 2:
The patent applies different ink materials to different regions of the ink structure. The pigment-based ink is used where structural formation is needed, while the resin-based ink is used where sample containment is critical, creating local quality variations that address different requirements in different areas.
2Reliability
If a resin structure is used to form the ink structure, then sample containment is improved, but sample overflow occurs due to small contact angle
Solution Approach 1:
The patent creates different surface properties at different locations of the ink structure by using pigment-based ink for the bulk structure and resin-based ink for surface regions. This local quality differentiation allows the structure to have both good sample containment and controlled wettability to prevent overflow.
Solution Approach 2:
The composite ink structure combines the advantages of both pigment-based and resin-based materials, where the resin component provides sample containment while the pigment component and their interaction control surface wettability to prevent overflow.
3Ease of manufacture
If a single ink composition is used, then manufacturing is simplified, but optical measurement consistency is poor due to permeation and overflow
Solution Approach 1:
The patent uses a composite ink composition containing both pigment-based ink (30-70 wt%) and resin-based ink (30-70 wt%). This composite material approach improves optical measurement consistency by preventing sample permeation and overflow, while still maintaining relatively simple manufacturing through a single coating process.
Solution Approach 2:
The patent optimizes the weight ratio parameters of the two ink components (both between 30-70 wt%) to achieve the best balance between manufacturing simplicity and measurement precision. By adjusting these composition parameters, the ink structure achieves optimal sample containment and optical properties.
4Ease of manufacture
If the ink structure has uniform composition, then manufacturing is easier, but transmittance control is limited
Solution Approach 1:
The patent creates non-uniform ink composition with different regions having different pigment and resin ratios. This allows different parts of the ink structure to have different transmittance properties, enabling transmittance control while maintaining ease of manufacture through a single coating process that naturally creates the composition gradient.
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 structure effectively controls sample movement and ensures uniform optical measurement data by preventing sample permeation and overflow, while increasing transmittance with varying ink composition ratios and wavelengths.
Implementation Method 1
The second ink structural component may be formed by the resin-based ink in the ink composition flowing downward in a gravitational direction.
Implementation Method 2
A transmittance of the ink structure may increase in correspondence with an increase of an ink composition ratio of a white resin-based ink included in the ink composition. A transmittance of the ink structure may increase in correspondence with an increase of a wavelength of light that is incident onto the ink structure.
Data Source
AI summary
Disclosed herein are a structure for optical analysis that is capable of optically analyzing a small amount of a sample and an ink composition for manufacturing the same. A structure for optical analysis includes a support and an ink structure coupled to the support and configured to form a chamber on one surface of the support. The ink structure includes a first ink structural component configured to form a body of the ink structure and a second ink structural component formed at a lower portion of a side surface of the first ink, such that the first ink structural component and the second ink structural component have different slopes with respect to a direction of a center of the chamber.