Electrochemical immunosensors
AssigneesIowa State University Research Foundation, Inc., Brigham Young University
InventorsJonathan Claussen, Suprem Das, Brian D. Iverson
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Abstract
In a general aspect, an apparatus can include a first carbon nanotube array that is patterned to define a first electrode having a first plurality of electrode segments. The apparatus can also include a second carbon nanotube array that is patterned to define a second electrode having a second plurality of electrode segments. The second plurality of electrode segments can be interdigitated with the first plurality of electrode segments. The apparatus can further include a biorecognition agent disposed on a surface of the first electrode and disposed on a surface of the second electrode. The first plurality of electrode segments can each have a height-to-width aspect ratio of at least 1 to 1.
Claims22
An apparatus comprising:
- a first carbon nanotube array that is patterned to define a first electrode having a first plurality of electrode segments;
- a second carbon nanotube array that is patterned to define a second electrode having a second plurality of electrode segments, the second plurality of electrode segments being interdigitated with the first plurality of electrode segments;
- and
- a biorecognition agent disposed on a surface of the first electrode and disposed on a surface of the second electrode,
- the first plurality of electrode segments each having a height of greater than or equal to 1.0 micron (μm) and a height-to-width aspect ratio of at least 1 to 1.
An apparatus comprising:
- a substrate;
- a patterned carbon nanotube array disposed on a surface of the substrate, the patterned carbon nanotube array having a vertical height from the surface of the substrate of greater than or equal to 0.5 microns (μm);
- amorphous carbon infiltrated in a surface of the patterned carbon nanotube array;
- and
- a biorecognition agent disposed on the surface of the patterned carbon nanotube array.
A method comprising:
- forming a first carbon nanotube array including patterning the first carbon nanotube array to define a first electrode having a first plurality of electrode segments;
- forming a second carbon nanotube array including patterning the second carbon nanotube array to define a second electrode having a second plurality of electrode segments, the second plurality of electrode segments being interdigitated with the first plurality of electrode segments;
- and
- immobilizing a biorecognition agent on a surface of the first electrode and on a surface of the second electrode,
- the first plurality of electrode segments each having a height of greater than or equal to 1.0 micron (μm) and a height-to-width aspect ratio of at least 1 to 1.
Dependencies are inferred from the claim text.