Disposable sub-microliter volume sensor and method of making

US6258229A · kind A · utility

Inventors

• Handani Winarta · Nashua, US
• Xiaohua Cai · Shanghai, CN
• Fung Seto · Newton, US
• Chung Chang Young · Weston, US

Key dates

• Filing date: Jun 2, 1999
• Grant date: Jul 10, 2001
• Expiry date: Jun 2, 2019

Classification

• Technology area (CPC C): Chemistry; Metallurgy
• CPC primary: C12Q1/004
• WIPO field: Biotechnology
• WIPO sector: Chemistry

Abstract

A disposable electrode strip for testing a fluid sample including a laminated strip with a first and second end, a vent, an open path for receiving a fluid sample of less than one microliter beginning from the first end and connecting to the vent, a working electrode, a reference electrode and a pseudo-working electrode embedded in the laminated strip within the open path and proximate to the first end, a reagent matrix coextensive within the open path and covering the three electrodes, and conductive contacts located at the second end of the laminated strip.