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:
Jul. 09, 2024
Filed:
Jan. 24, 2020
University of Virginia Patent Foundation, Charlottesville, VA (US);
Nathan Swami, Charlottesville, VA (US);
Walter Varhue, Charlottesville, VA (US);
Vahid Farmehini, Charlottesville, VA (US);
UNIVERSITY OF VIRGINIA PATENT FOUNDATION, Charlottesville, VA (US);
Abstract
Disclosed herein are methods and systems that facilitate the integration of on-chip impedance sensors and measurement circuitries for quantifying the impedance/frequency response of microfluidic device under the same, or similar, conditions used for particle manipulation. The methods and systems can use a microfluidic chip comprising a microfluidic channel with one or more electric-field-generating structures located therein, including a first electric-field-generating structure, wherein the one or more electric-field-generating structures is configured to selectively polarize or manipulate biologic or particle components flowing within the microfluidic channel. The method and system can also employ a circuit configured for automated determination and quantification of parasitic voltage drops during AC electrokinetic particle manipulation, without the need to use valuable biological samples or model particles. The determined impedance response can be used to assess efficacy of the microfluidic device geometry as well as to provide control signals to inform downstream cell separation decisions.