Molecular sieve sensors for selective detection at the nanogram level

Title: Molecular sieve sensors for selective detection at the nanogram level

Full Record
Other Related Research

Abstract

The invention relates to a selective chemical sensor for selective detection of chemical entities even at the nanogram level. The invention further relates to methods of using the sensor. The sensor comprises: (a) a piezoelectric substrate capable of detecting mass changes resulting from adsorption of material thereon; and (b) a coating applied to the substrate, which selectively sorbs chemical entities of a size smaller than a preselected magnitude.

Inventors:

Bein, Thomas ^[1]; Brown, Kelly D ^[1]; Frye, Gregory C ^[1]; Brinker, Charles J ^[1]

Albuquerque, NM

Issue Date:: 1992-01-01

Research Org.:: AT&T

OSTI Identifier:: 868480

Patent Number(s):: 5151110

Assignee:: University of New Mexico (Albuquerque, NM)

Patent Classifications (CPCs):: G - PHYSICS G01 - MEASURING G01N - INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES

B - PERFORMING OPERATIONS B01 - PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL B01D - SEPARATION

Show more

G - PHYSICS G01 - MEASURING G01N - INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
G01N30/00 - Investigating or analysing materials by separation into components using adsorption, absorption or similar phenomena or using ion-exchange, e.g. chromatography

B - PERFORMING OPERATIONS B01 - PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL B01D - SEPARATION
B01D2253/304 - Linear dimensions, e.g. particle shape, diameter

G - PHYSICS G01 - MEASURING G01N - INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
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
G01N2291/0256 - Adsorption, desorption, surface mass change, e.g. on biosensors

B - PERFORMING OPERATIONS B01 - PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL B01D - SEPARATION
B01D2253/108 - Zeolites

G - PHYSICS G01 - MEASURING G01N - INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
G01N2291/0422 - Shear waves, transverse waves, horizontally polarised waves

B - PERFORMING OPERATIONS B01 - PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL B01D - SEPARATION
B01D2253/11 - Clays
B01D2253/106 - Silica or silicates
B01D53/02 - by adsorption, e.g. preparative gas chromatography {

G - PHYSICS G01 - MEASURING G01N - INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
G01N2291/0426 - Bulk waves, e.g. quartz crystal microbalance, torsional waves

B - PERFORMING OPERATIONS B01 - PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL B01D - SEPARATION
B01D2257/702 - Hydrocarbons

G - PHYSICS G01 - MEASURING G01N - INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
G01N2291/0423 - Surface waves, e.g. Rayleigh waves, Love waves

B - PERFORMING OPERATIONS B01 - PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL B01D - SEPARATION
B01D2253/202 - Polymeric adsorbents
B01D2257/502 - Carbon monoxide

Show less

DOE Contract Number:: AC04-76DP00789

Resource Type:: Patent

Country of Publication:: United States

Language:: English

Subject:: molecular; sieve; sensors; selective; detection; nanogram; level; relates; chemical; sensor; entities; methods; comprises; piezoelectric; substrate; capable; detecting; mass; changes; resulting; adsorption; material; thereon; coating; applied; selectively; sorbs; size; preselected; magnitude; coating applied; chemical sensor; molecular sieve; sensor comprises; material thereon; nanogram level; piezoelectric substrate; preselected magnitude; selective chemical; selectively sorb; selective detection; substrate capable; /95/96/

Citation Formats


                    Bein, Thomas, Brown, Kelly D, Frye, Gregory C, and Brinker, Charles J. Molecular sieve sensors for selective detection at the nanogram level.  United States: N. p., 1992. 
        Web.

Copy to clipboard


                    Bein, Thomas, Brown, Kelly D, Frye, Gregory C, & Brinker, Charles J. Molecular sieve sensors for selective detection at the nanogram level.  United States.

Copy to clipboard


                    Bein, Thomas, Brown, Kelly D, Frye, Gregory C, and Brinker, Charles J. Wed .  
        "Molecular sieve sensors for selective detection at the nanogram level".  United States.  https://www.osti.gov/servlets/purl/868480.

Copy to clipboard


                    
@article{osti_868480,

  title        = {Molecular sieve sensors for selective detection at the nanogram level},

  author       = {Bein, Thomas and Brown, Kelly D and Frye, Gregory C and Brinker, Charles J},

  abstractNote = {The invention relates to a selective chemical sensor for selective detection of chemical entities even at the nanogram level. The invention further relates to methods of using the sensor. The sensor comprises: (a) a piezoelectric substrate capable of detecting mass changes resulting from adsorption of material thereon; and (b) a coating applied to the substrate, which selectively sorbs chemical entities of a size smaller than a preselected magnitude.},

  doi          = {},

  journal      = {},
number       = ,

  volume       = ,

  place        = {United States},

  year         = {1992},

  month        = {1}

}

Copy to clipboard

Patent:

View Patent

Save / Share:

Export Metadata

Save to My Library

Similar Records in DOE Patents and OSTI.GOV collections:

Selective chemical detection by energy modulation of sensors

Patent Stetter, Joseph R [Naperville, IL]; Otagawa, Takaaki [Solon, OH]

A portable instrument for use in the field in detecting, identifying, and quantifying a component of a sampled fluid includes a sensor which chemically reacts with the component of interest or a derivative thereof, an electrical heating filament for heating the sample before it is applied to the sensor, and modulator for continuously varying the temperature of the filament (and hence the reaction rate) between two values sufficient to produce the chemical reaction. In response to this thermal modulation, the sensor produces a modulated output signal, the modulation of which is a function of the activation energy of the chemicalmore »« less
Full Text Available
System and method for controlling ammonia levels in a selective catalytic reduction catalyst using a nitrogen oxide sensor

Patent

A system according to the principles of the present disclosure includes an air/fuel ratio determination module and an emission level determination module. The air/fuel ratio determination module determines an air/fuel ratio based on input from an air/fuel ratio sensor positioned downstream from a three-way catalyst that is positioned upstream from a selective catalytic reduction (SCR) catalyst. The emission level determination module selects one of a predetermined value and an input based on the air/fuel ratio. The input is received from a nitrogen oxide sensor positioned downstream from the three-way catalyst. The emission level determination module determines an ammonia level basedmore »« less
Full Text Available
Methods for improved selectivity in photo-activation and detection of molecular diagnostic agents

Patent Wachter, Eric A [Oak Ridge, TN]; Fisher, Walter G [Knoxville, TN]; Dees, H Craig [Knoxville, TN]

A method for the imaging of a particular volume of plant or animal tissue, wherein the plant or animal tissue contains at least one photo-active molecular agent. The method comprises the steps of treating the particular volume of the plant or animal tissue with light sufficient to promote a simultaneous two-photon excitation of the photo-active molecular agent contained in the particular volume of the plant or animal tissue, photo-activating at least one of the at least one photo-active molecular agent in the particular volume of the plant or animal tissue, thereby producing at least one photo-activated molecular agent, wherein themore »« less
Full Text Available
Method for improved selectivity in photo-activation and detection of molecular diagnostic agents

Patent Wachter, Eric A [Oak Ridge, TN]; Fisher, Walter G [Knoxville, TN]; Dees, H Craig [Knoxville, TN]

A method for the imaging of a particular volume of plant or animal tissue, wherein the plant or animal tissue contains at least one photo-active molecular agent. The method includes the steps of treating the particular volume of the plant or animal tissue with light sufficient to promote a simultaneous two-photon excitation of the photo-active molecular agent contained in the particular volume of the plant or animal tissue, photo-activating at least one of the at least one photo-active molecular agent in the particular volume of the plant or animal tissue, thereby producing at least one photo-activated molecular agent, wherein themore »« less
Full Text Available
Method for selective detection of explosives in mass spectrometer or ion mobility spectrometer at parts-per-quadrillion level

Patent Ewing, Robert G.; Atkinson, David A.; Clowers, Brian H.

A method for selective detection of volatile and non-volatile explosives in a mass spectrometer or ion mobility spectrometer at a parts-per-quadrillion level without preconcentration is disclosed. The method comprises the steps of ionizing a carrier gas with an ionization source to form reactant ions or reactant adduct ions comprising nitrate ions (NO.sub.3.sup.-); selectively reacting the reactant ions or reactant adduct ions with at least one volatile or non-volatile explosive analyte at a carrier gas pressure of at least about 100 Ton in a reaction region disposed between the ionization source and an ion detector, the reaction region having a lengthmore »« less
Full Text Available

Similar Records