The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
Jan. 19, 2021
Filed:
Jun. 30, 2016
Nanyang Technological University, Singapore, SG;
Han Wei Hou, Singapore, SG;
Bernhard Otto Boehm, Singapore, SG;
Hui Min Tay, Singapore, SG;
Say Chye Joachim Loo, Singapore, SG;
Nanyang Technological University, Singapore, SG;
Abstract
This invention relates to a method for separating blood cells comprising the steps of: (a) lysing red blood cells of a blood sample and diluting said sample; (b) providing a microfluidic device comprising a spiral-shaped flow channel having at least a first end and a second end, wherein said flow channel has two inlet ports at or near said first end and at least two outlet ports at or near said second end, wherein one of the two inlet ports is located at the inner wall of the spiral-shaped flow channel and the other inlet port is located at the outer wall of the spiral-shaped flow channel and at least one of the outlet ports is connected to a container allowing the storage of blood cells; (c) introducing the sample of step (a) into the inlet port located at the outer wall of the spiral-shaped flow channel and introducing a sheath fluid into the inlet port located at the inner wall of the spiral-shaped flow channel; (d) driving said sample and the sheath fluid through the spiral-shaped flow channel; and (e) recovering the blood cell in the at least one container connected to the at least one outlet port. The present invention also relates to coupling above described method of purifying neutrophils in the native state with a method for diagnosing diabetes or an inflammatory disease in a subject, which involves further investigation of neutrophils by determining their rolling speed, the neutrophil circularity (NC) index and/or the expression of markers, such as intracellular reactive oxygen species (ROS), CD1 1 b or PSGL-1.