公开(公告)号：NZ504061A

公开(公告)日：2003-01-31

申请号：NZ50406198

申请日：1998-10-27

Applicant: IDEXX LAB INC

Inventor： PIERSON MARK W ,  TOWNSEND DAVID E ,  GU HAOYI ,  NAQUI ALI ,  GELARDI PAUL J

IPC: C12M1/34 ,  B01J19/00 ,  B01L3/00 ,  B01L3/02 ,  C12Q1/04 ,  G01N33/18 ,  G01N33/48 ,  G01N33/53 ,  G01N33/543

Abstract: Method and assay devices for the detection of the presence or amount of biological material, analyte(s), or microorganism(s) in a sample. The method includes the steps of liquefying the sample (if necessary) and distributing the liquefied sample over the surface of the assay device. The device may comprise an incubation plate, a dip stick device, or other devices. The devices have at least one reagent provided within the devices. Some devices have a generally flat horizontal surface which is divided into a plurality of recessed wells. Others have one or more surfaces with reagent island(s) immobilized thereon. Each well or reagent island is adapted to hold an aliquot of liquid. The wells or reagent islands are sized and shaped, and formed of a suitable material, to hold the aliquot within the well or reagent island by surface tension. Any excess liquid from the liquefied sample is drained from the surface of the device. The method then involves incubating the assay device until the presence or amount of the biological material, analyte, or microorganism is determined.

公开(公告)号：AU3792300A

公开(公告)日：2000-08-24

申请号：AU3792300

申请日：2000-06-05

Applicant: IDEXX LAB INC

Inventor： PIERSON MARK W ,  TOWNSEND DAVID E ,  GU HAOYI ,  NAQUI ALI

IPC: C12M1/34 ,  C12Q1/00

公开(公告)号：BR9611519A

公开(公告)日：1999-03-02

申请号：BR9611519

申请日：1996-11-12

Applicant: IDEXX LAB INC

Inventor： TOWNSEND DAVID E ,  PIERSON MARK W ,  CROTEAU ANDREW J ,  NAQUI ALI

IPC: G01N33/48 ,  B01L3/00 ,  C12M1/20 ,  C12M1/34 ,  G01N1/00

Abstract: Method for detection of a biological material in a sample. The method includes the steps of liquifying the sample (if necessary) and pouring the liquified sample into the incubation plate. The incubation plate has a generally flat horizontal surface and the surface is divided into a plurality of at least 20 recessed wells. Each well is adapted to hold an aliquot of liquid and is sized and shaped, and formed of a suitable material, to hold the aliquot within the well by surface tension. Any excess liquid from the liquified sample is poured from the surface of the plate. The method then involves incubating that incubation plate until the presence or absence of the biological material is determined.

公开(公告)号：MX9709876A

公开(公告)日：1998-03-31

申请号：MX9709876

申请日：1997-12-08

Applicant: IDEXX LAB INC

Inventor： TOWNSEND DAVID E ,  CHEN CHUN-MING

IPC: C12Q1/04 ,  G01N33/02 ,  G01N33/18

Abstract: Esta invencion se refiere a un método para detectar la existencia o medir la concentracion del total de bacterias viables en una muestra de prueba de un producto alimenticio; se provee un medio que contiene tres o más substratos de enzima distintos, teniendo cada uno una porcion de nutriente y una porcion detectable enlazada a la misma; cuando un substrato es hidrolizado por una enzima bacteriana para crear una porcion detectable separada, causa o produce una señal detectable; estos substratos producen señales detectables cuando alguna de una enzima fosfatasa, una enzima glicosidasa o una enzima peptidasa está presente en el medio.

公开(公告)号：AR002403A1

公开(公告)日：1998-03-11

申请号：AR10305196

申请日：1996-07-06

Applicant: IDEXX LAB INC

Inventor： TOWNSEND DAVID E

IPC: C12Q1/04 ,  G01N33/02 ,  C12Q1/34 ,  C12Q1/37 ,  C12Q1/40 ,  C12Q1/42 ,  C12Q1/44 ,  C12S13/00

Abstract: Esta invención se refiere a un método para detectar la existencia o medir la concentración de bacterias viables totales en una muestra de prueba de unproducto alimenticio. Se provee un medio que contiene hasta 3 sustratos de enzimas diferentesde manera tal que cada uno posea una fracción nutriente yuna fracción detectable vinculadas entre sí. Cuando un substrato es hidrolizado por una enzima bacteriológica, para crear una fracción detectable separada,ocasiona o produce una senal perceptible. Estos substratos producen senales perceptibles cuando cualquiera de una enzima fosfatasa, una enzima glicosidasao un enzima peptidasa está presente en un medio.