Title: Tunable multiwalled nanotube resonator

Abstract

A tunable nanoscale resonator has potential applications in precise mass, force, position, and frequency measurement. One embodiment of this device consists of a specially prepared multiwalled carbon nanotube (MWNT) suspended between a metal electrode and a mobile, piezoelectrically controlled contact. By harnessing a unique telescoping ability of MWNTs, one may controllably slide an inner nanotube core from its outer nanotube casing, effectively changing its length and thereby changing the tuning of its resonance frequency. Resonant energy transfer may be used with a nanoresonator to detect molecules at a specific target oscillation frequency, without the use of a chemical label, to provide label-free chemical species detection.

Inventors:

Jensen, Kenneth J; Girit, Caglar O; Mickelson, William E; Zettl, Alexander K; Grossman, Jeffrey C

Issue Date:

Tue Nov 05 00:00:00 EST 2013

Research Org.:

Lawrence Berkeley National Laboratory (LBNL), Berkeley, CA (United States)

Sponsoring Org.:

USDOE

OSTI Identifier:

1107885

Patent Number(s):

8573031

Application Number:

13/026,122

Assignee:

The Regents of the University of California (Oakland, CA)

Patent Classifications (CPCs):

B - PERFORMING OPERATIONS B82 - NANOTECHNOLOGY B82Y - SPECIFIC USES OR APPLICATIONS OF NANOSTRUCTURES

G - PHYSICS G01 - MEASURING G01N - INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES

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B - PERFORMING OPERATIONS B82 - NANOTECHNOLOGY B82Y - SPECIFIC USES OR APPLICATIONS OF NANOSTRUCTURES

B82Y30/00 - Nanotechnology for materials or surface science, e.g. nanocomposites

G - PHYSICS G01 - MEASURING G01N - INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES

G01N2291/0256 - Adsorption, desorption, surface mass change, e.g. on biosensors
G01N29/022 - {Fluid sensors based on microsensors, e.g. quartz crystal-microbalance [QCM], surface acoustic wave [SAW] devices, tuning forks, cantilevers, flexural plate wave [FPW] devices
G01N29/036 - by measuring frequency or resonance of acoustic waves

H - ELECTRICITY H03 - BASIC ELECTRONIC CIRCUITRY H03H - IMPEDANCE NETWORKS, e.g. RESONANT CIRCUITS

H03H9/02259 - {Driving or detection means}
H03H9/02393 - {Post-fabrication trimming of parameters, e.g. resonance frequency, Q factor}
H03H9/2463 - {Clamped-clamped beam resonators}

Y - NEW / CROSS SECTIONAL TECHNOLOGIES Y10 - TECHNICAL SUBJECTS COVERED BY FORMER USPC Y10S - TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS

Y10S977/752 - Multi-walled

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DOE Contract Number:  

AC02-05CH11231

Resource Type:

Patent

Country of Publication:

United States

Language:

English

Subject:

47 OTHER INSTRUMENTATION