| Title: | Ultrasensitive chemical detection using a nanocoax sensor |
| Author(s): | Zhao H; Rizal B; McMahon G; Wang H; Dhakal P; Kirkpatrick T; Ren Z; Chiles TC; Naughton MJ; Cai D; |
| Address: | "Department of Physics, Boston College, Chestnut Hill, Massachusetts 02467, United States" |
| ISSN/ISBN: | 1936-086X (Electronic) 1936-0851 (Linking) |
| Abstract: | "We report on the design, fabrication, and performance of a nanoporous, coaxial array capacitive detector for highly sensitive chemical detection. Composed of an array of vertically aligned nanoscale coaxial electrodes constructed with porous dielectric coax annuli around carbon nanotube cores, this sensor is shown to achieve parts per billion level detection sensitivity, at room temperature, to a broad class of organic molecules. The nanoscale, 3D architecture and microscale array pitch of the sensor enable rapid access of target molecules and chip-based multiplexing capabilities, respectively" |
| Keywords: | "Chemistry Techniques, Analytical/*instrumentation Electric Capacitance Electrodes Ethanol/analysis Nanotechnology/*instrumentation Temperature Time Factors Volatile Organic Compounds/analysis;" |
| Notes: | "MedlineZhao, Huaizhou Rizal, Binod McMahon, Gregory Wang, Hengzhi Dhakal, Pashupati Kirkpatrick, Timothy Ren, Zhifeng Chiles, Thomas C Naughton, Michael J Cai, Dong eng CA137681/CA/NCI NIH HHS/ Research Support, N.I.H., Extramural Research Support, Non-U.S. Gov't Research Support, U.S. Gov't, Non-P.H.S. 2012/03/08 ACS Nano. 2012 Apr 24; 6(4):3171-8. doi: 10.1021/nn205036e. Epub 2012 Mar 12" |
