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One-Step Manufacture Of Nanowire Biosensors

技术优势: One-step in-situ synthesis. Each nanowire is fabricated on the device in seconds and is functionalized as it is grown. There is no need for post-synthesis modification or placement. Easy manufacture. UC's methods are compatible with current fabrication technologies and could be used to develop densely packed arrays of heterogonous probes on an array. Instantaneous, specific, and label-free detection. Biological targets selectively bind to the wire's functional groups, leading to a rapid and easily measured change in conductance. Versatility. The UC methods could be readily adapted to sense biological materials, chemical species, and gases.

*Abstract: Electrochemical biosensors based on nanotubes or nanowires could be widely used in diagnostic, research, and security applications. However, the problems associated with functionalizing and placing these nano-elements on a device have prevented the practical application of this technology.

University of California scientists have developed a simple one-step methodology for the synthesis of functionalized nanowires that act as biosensors. Nanowires of 100 to 200 nm have been tested that can accurately sense the presence of target biological molecules through changes in conductance when the target binds to the wire's functional ligands

*Principal Investigation: Name: Wilfred Chen
Department:

Name: Ashok Mulchandani
Department:

Name: Nosang Myung
Department:

附加资料: Patent Number: US8034222B2
Application Number: US2005259557A
Inventor: Myung, Nosang V. | Mulchandani, Ashok | Chen, Wilfred
Priority Date: 26 Oct 2004
Priority Number: US8034222B2
Application Date: 25 Oct 2005
Publication Date: 11 Oct 2011
IPC Current: G01N0027327
US Class: 20440301 | 204400 | 42208202 | 977957
Assignee Applicant: The Regents of the University of California
Title: Conducting polymer nanowire sensors
Usefulness: Conducting polymer nanowire sensors
Summary: The device is useful for detecting an analyte e.g. biotin or its derivative (claimed).
Novelty: Doped conducting polymer material used for detecting analyte comprises analyte-binding species that has different conductivity depending on presence or absence of analyte

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