University of Missouri

University of Notre Dame Du Lac

Shramik Sengupta

Hsueh-Chia Chang

Sachidevi Puttaswamy

John Andrew Viator

Kyle Rood

Christine Mary O'Brien

Sagar K Gupta

Jeff Mosley

Christine Mary O'brien

An improved system and method is provided for detecting viable bacteria in a suspension sample. A sample of a suspension in which bacterial presence is suspected is collected from a source and a portion of the sample transferred to a microfluidic unit. A series of analysis signals at different frequencies are applied to the sample portion. An impedance is measured via a signal analyzer for the sample portion for each of the analysis signals to define an impedance data set. An initial bulk capacitance value is determined for a model circuit based on the impedance dataset. After a predetermined time period, a new bulk capacitance value is determined for on another portion of the sample. The difference between the new bulk capacitance and the initial bulk capacitance value is compared to a threshold value to determine if viable bacterial is present in the sample.

Rapid detection of viable bacteria system and method

A multiple flow system and method for detecting substances in a fluid is provided. More specifically, a first fluid tube containing a first fluid and a second fluid tube containing a second fluid are coupled to a common fluid tube via a connector, such that alternating discrete compartments of the first fluid and the second fluid flow through the common fluid tube. The first and second fluids are immiscible. A substance detector, having a flow chamber with an internal wall, is coupled to the common fluid tube. The alternating discrete compartments of the first and second fluids flow through the flow chamber and are analyzed by the substance detector.

Multiple phase flow system for detecting and isolating substances

Growing community of inventors

Columbia, MO, United States of America

Shramik Sengupta