University of Iowa Research Foundation

Chris Coretsopoulos

Matthew A Howard

Winston Kong Chan

Mark Allen Arnold

Jonathon Todd Olesberg

John P Prineas

Jonathan T Olesberg

An article of manufacture and a method of defining a photodetector element are provided. The article of manufacture includes a photodector element comprising a junction formed by a first III-V semiconductor layer having a first charge type and a second III-V semiconductor layer comprising a second dopant having a second charge type. The second III-V semiconductor layer is disposed between the first III-V semiconductor layer and a wafer. Patterned dopant regions having a third charge type, the third charge type being the same as the first charge type, are disposed in the first III-V semiconductor layer.

System and method of planar processing of semiconductors into detector arrays

Disclosed is an implantable microspectrometer for the reagentless optical detection of an analyte in a sample fluid. The microspectrometer comprises an optical sampling cell having a cell housing defining a fluid inlet port and a fluid outlet port, the fluid inlet port configured to receive an optical sampling fluid from a test subject; an electromagnetic radiation source in communication with a first portion of the optical sampling cell housing and configured to irradiate at least a portion of the optical sampling fluid with electromagnetic radiation; and an electromagnetic radiation detector in communication with a second portion of the optical sampling cell housing and configured to detect electromagnetic radiation emanating from the optical sampling cell. In use, the implantable microspectrometer can optically detect at least one parameter of an analyte contained within the optical sampling fluid in the absence of an added reagent.

Reagentless optical analyte detection system

An electrode array includes a flexible substrate, and a plurality of electrodes disposed on the flexible substrate. The flexible substrate is preferably formed of polyimide. The contacts preferably have a diameter in the range of approximately 10 &mgr;m to 1 mm. The an electrode array is manufactured by forming a plurality of electrodes on a flexible substrate by forming a metal line on the flexible substrate for each of the plurality of electrodes by depositing one or more metals using electron beam evaporation and then patterning the one or more metals and forming a contact on the flexible substrate for each of the plurality of electrodes using one of electroplating and embossing, and then forming an insulating film on the flexible substrate except over the contacts and areas of the electrodes utilized for connections to an electrical device. Electroplating is utilized to form contacts less than approximately 100 &mgr;m in diameter, and embossing is utilized to form contacts greater than approximately 100 &mgr;m in diameter.

Growing community of inventors

Iowa City, IA, United States of America

Chris Coretsopoulos