Substrate having oxide layer, method for detecting target material using the substrate, and optical sensor including the substrate

• US 20050112677A1
• Filed: 11/22/2004
• Published: 05/26/2005
• Est. Priority Date: 11/22/2003
• Status: Abandoned Application

• Current Assignee: Samsung Electronics Co. Ltd.
• Original Assignee: Samsung Electronics Co. Ltd.
• Inventors: Shim, Jeo-young
• Application Number:
  US10/994,626
• Publication Number:
  US 20050112677A1
• Time in Patent Office: Days
• US Class Current: 435/6
• CPC Class Codes: G01N 33/552 Glass or silica

Abstract

Provided are a substrate used in optically detecting a target material and having an oxide layer, a method for detecting a target material using the substrate, and an optical sensor including the substrate. The substrate can provide an increased detection signal in an analysis method using the substrate.

Claims

1. A substrate used in optically detecting a target material and having an oxide layer.

2. The substrate of claim 1, wherein the oxide layer has a thickness of 500-1,500 Å

.

3. The substrate of claim 1, wherein the substrate is made of silicon or glass.

4. The substrate of claim 1, wherein the substrate is a microarray substrate or an enzyme linked immunosorbent assay (ELISA) substrate.

5. A method for detecting a target material, which comprises:

immobilizing a probe material on a substrate, wherein the substrate used in optically detecting a target material and having an oxide layer;

reacting the immobilized probe material and the target material;

illuminating a reaction product with excitation light; and

measuring light emitted from the reaction product by the excitation light.

6. The method of claim 5, wherein the target material is labeled with an optically active material.

7. The method of claim 6, wherein the optically active material is a fluorescent or phosphorescent material.

11. The method of claim 5, wherein the oxide layer has a thickness of 500-1,500 Å

.

12. The method of claim 5, wherein the substrate is made of silicon or glass.

13. The method of claim 5, wherein the substrate is a microarray substrate or an enzyme linked immunosorbent assay (ELISA) substrate.

8. An optical sensor for target material detection comprising.

a substrate used in optically detecting a target material and having an oxide layer.

9. The optical sensor of claim 8, further comprising:

a device depositing a target material to be detected;

a device illuminating excitation light; and

a device detecting light emitted from the target material by the excitation light.

10. The optical sensor of claim 8, wherein the substrate is a microarray substrate or an enzyme linked immunosorbent assay (ELISA) substrate.