Structure for optical analysis and ink composition for manufacturing the same
Inventors
CHO, Euy Hyun • KANG, Ji Yun • Kim, Ji Won • Park, Sung Ha • Lee, Beom Seok
Assignees
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Publication Number
US-10106694-B2
Publication Date
2018-10-23
Expiration Date
Abstract
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.
Core Innovation
The invention relates to an optical-analysis structure that includes a support and an ink structure coupled to the support to form a chamber having a bottom surface and side surfaces. The ink structure includes first and second ink structural components configured to form respective first and second sidewalls of the chamber, and the first sidewall is formed by a first ink structural component having a first slope with respect to a direction of a center of the chamber, while the second sidewall is formed by a second ink structural component positioned under the first sidewall and having a second slope with respect to the direction of the center of the chamber.
The first slope is different from the second slope, and the first sidewall and the second sidewall form one of the side surfaces of the chamber. The ink structure is formed by coating an ink composition that includes a pigment-based ink and a resin-based ink, and the second ink structural component has a higher lipophilicity than the first ink structural component.
The chamber and channel diameters and widths decrease toward the support to guide sample flow. The longitudinal profiles of the second ink structural component can be parabolic or Gaussian, and the performance is described as improved uniform optical measurement dispersion compared with pigment-only or resin-only structures, with tunable light transmittance that increases with a higher white resin-based ink ratio and with increasing incident wavelength.
Claims Coverage
The document includes one independent claim with two main inventive features: an ink-formed chamber sidewall formed from first and second ink structural components having different slopes, and an ink composition in which the second component has higher lipophilicity than the first component.
Sloped first and second ink structural sidewalls forming chamber side surfaces
A structure for optical analysis comprising a support and an ink structure coupled to the support to form a chamber having a bottom surface and side surfaces, where the ink structure comprises a first ink structural component configured to form a first sidewall with a first slope and a second ink structural component configured to form a second sidewall positioned under the first sidewall with a second slope, the first slope being different from the second slope, and the first sidewall and the second sidewall form one of the side surfaces of the chamber.
Higher lipophilicity second component from pigment-based and resin-based ink composition
The ink structure is formed by coating an ink composition that includes a pigment-based ink and a resin-based ink, wherein the second ink structural component has a higher lipophilicity than the first ink structural component.
Across the independent claim, the structure for optical analysis is defined by an ink-formed chamber side surface built from two ink structural components with different slopes, together with a two-component coating ink in which the second component has higher lipophilicity than the first.
Stated Advantages
Improved uniform optical measurement dispersion using the compounded structure versus pigment-only or resin-only structures.
Tunable light transmittance, including transmittance increasing with a higher white resin-based ink ratio.
Tunable light transmittance increasing with increasing incident wavelength.
Documented Applications
Microfluidic device applicability, including a housing/platform layer with transparent regions and chambers accommodating reagents for sample flow through the ink-formed chamber/channel.
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