Biosensor and method of manufacturing biosensor

• US 7,407,628 B2
• Filed: 08/05/2004
• Issued: 08/05/2008
• Est. Priority Date: 09/01/2003
• Status: Expired due to Fees

• Current Assignee: Seiko Epson Corporation (Seiko Group)
• Original Assignee: Seiko Epson Corporation (Seiko Group)
• Inventors: Kondo, Takayuki, Fukushima, Hitoshi
• Primary Examiner(s): Warden; Jill
• Assistant Examiner(s): TURK, NEIL N
• Application Number:
  US10/911,627
• Publication Number:
  US 20050063870A1
• Time in Patent Office: 1,461 Days
• Field of Search: None
• US Class Current: 422/82.05
• CPC Class Codes: G01N 21/553 and using surface plasmons fluorescence excitation G01N21/648; enhanced Raman G01N21/658
• CPC Class Codes: G01N 21/6428 Measuring fluorescence of fluorescent products of reactions or of fluorochrome labelled reactive substances, e.g. measuring quenching effects, using measuring "optrodes" in vivo A61B5/00; immunoassay G01N33/53
• CPC Class Codes: G01N 21/6452 Individual samples arranged in a regular 2D-array, e.g. multiwell plates
• CPC Class Codes: G01N 21/6454 using an integrated detector array

Abstract

Aspects of the invention can be an inexpensive biosensor capable of measuring a number of samples in a short time, and suitable for only one-time use (expendable). The biosensor according to the invention can include a light transmissive substrate, a probe fixing region provided on one face of the light transmissive substrate, a light emitting element provided on the other face of the substrate that irradiates the probe fixing region from the back side thereof, and a light receiving element provided on the other face of the substrate that detects the light intensity of the reflected light from the back side of the probe fixing region. Thereby, a biosensor formed in one substrate can be obtained.

Claims

1. A biosensor, comprising:

a light transmissive substrate having a first face and a second face opposing the first face;

a probe fixing region to which a probe is fixed, the probe fixing region provided on the first face of the light transmissive substrate;

a light emitting element provided on the second face of the light transmissive substrate that irradiates the probe fixing region; and

a light receiving element provided on the second face of the light transmissive substrate that detects light intensity of reflected light from the probe fixing region.