Ibrahem Hashim Jasim

US Patent:

20190250159, Aug 15, 2019

Filed:

Apr 29, 2019

Appl. No.:

16/396972

Inventors:

- Columbia MO, US
Shibajyoti Ghosh Dastider - Columbia MO, US
Shuping Zhang - Columbia MO, US
Majed El Dweik - Jefferson City MO, US
Nuh Sadi Yuksek - Columbia MO, US
Ibrahem Jasim - Columbia MO, US
Jiayu Liu - Columbia MO, US

International Classification:

G01N 33/569
B01L 3/00
B03C 5/00
B03C 5/02
G01N 33/543

Abstract:

Disclosed herein are example embodiments of a transformative sensor apparatus that is capable of detecting and quantifying the presence of a substance of interest such as a specified bacteria within a sample via changes in impedance exhibited by a detection electrode array. In an example embodiment, sensitivity is improved by including a focusing electrode array in a rampdown channel to focus a concentration of the substance of interest into a detection region. The focusing electrodes include an opposing pair of electrodes in a rampdown orientation. The focusing electrode may also include tilted thin film finger electrodes extending from the rampdown electrodes. In another example embodiment, trapping electrodes are positioned to trap a concentration of the substance of interest onto the detection electrode array.

US Patent:

20160299138, Oct 13, 2016

Filed:

Apr 8, 2016

Appl. No.:

15/094045

Inventors:

- Columbia MO, US
Shibajyoti Ghosh Dastider - Columbia MO, US
Shuping Zhang - Columbia MO, US
Majed El Dweik - Jefferson City MO, US
Nuh Sadi Yuksek - Columbia MO, US
Ibrahem Jasim - Columbia MO, US

International Classification:

G01N 33/569
G01N 27/27
B01L 3/00
B03C 5/02
G01N 33/543
G01N 27/447
B03C 5/00

Abstract:

Disclosed herein are example embodiments of a transformative sensor apparatus that is capable of detecting and quantifying the presence of a substance of interest such as a specified bacteria within a sample via changes in impedance exhibited by a detection electrode array. In an example embodiment, sensitivity is improved by including a focusing electrode array in a rampdown channel to focus a concentration of the substance of interest into a detection region. The focusing electrodes include an opposing pair of electrodes in a rampdown orientation. The focusing electrode may also include tilted thin film finger electrodes extending from the rampdown electrodes. In another example embodiment, trapping electrodes are positioned to trap a concentration of the substance of interest onto the detection electrode array.