Patents by Inventor Dan Buzatu

Dan Buzatu has filed for patents to protect the following inventions. This listing includes patent applications that are pending as well as patents that have already been granted by the United States Patent and Trademark Office (USPTO).

  • Patent number: 9194868
    Abstract: In various embodiments, the present disclosure describes methods and systems for detecting microbes in a sample. The methods are generally applicable to quantifying the number of target bacteria in a sample counted from a detection region of a flow cytometer histogram. The detection methods can be employed in the presence of other microorganisms and other non-target microbe components to selectively quantify the amount of a target microbe. The methods are advantageous over those presently existing for testing of foodstuffs and diagnostic evaluation in their speed, accuracy and ease of use. Various swab collection devices and kits useful for practicing the present disclosure are also described herein.
    Type: Grant
    Filed: August 17, 2009
    Date of Patent: November 24, 2015
    Assignees: The United States of America, Vivione Biosciences, LLC
    Inventors: Dan A. Buzatu, Jon G. Wilkes, Ted A. Moskal, Bill Nevius, Jason T. Taylor, Randal K. Tucker, Melinda Miller, Shawn Ramsanoop
  • Publication number: 20150276573
    Abstract: In various embodiments, the present disclosure describes methods and systems for detecting microbes in a sample. The methods are generally applicable to quantifying the number of target bacteria in a sample counted from a detection region of a flow cytometer histogram. The detection methods can be employed in the presence of other microorganisms and other non-target microbe components to selectively quantify the amount of a target microbe. The methods are advantageous over those presently existing for testing of foodstuffs and diagnostic evaluation in their speed, accuracy and ease of use. Various swab collection devices and kits useful for practicing the present disclosure are also described herein.
    Type: Application
    Filed: March 26, 2014
    Publication date: October 1, 2015
    Applicant: Vivione Biosciences, LLC
    Inventors: Dan Buzatu, Jon Wilkes, Ted Moskal, Bill Nevius, Melinda Miller, Shawn Ramsaroop
  • Publication number: 20150275264
    Abstract: In various embodiments, the present disclosure describes methods and systems for detecting microbes in a sample. The methods are generally applicable to quantifying the number of target bacteria in a sample counted from a detection region of a flow cytometer histogram. The detection methods can be employed in the presence of other microorganisms and other non-target microbe components to selectively quantify the amount of a target microbe. The methods are advantageous over those presently existing for testing of foodstuffs and diagnostic evaluation in their speed, accuracy and ease of use. Various swab collection devices and kits useful for practicing the present disclosure are also described herein.
    Type: Application
    Filed: March 26, 2014
    Publication date: October 1, 2015
    Applicant: Vivione Biosciences, LLC
    Inventors: Dan Buzatu, Jon Wilkes, Ted Moskal, Bill Nevius, Melinda Miller, Shawn Ramsaroop
  • Publication number: 20150275263
    Abstract: In various embodiments, the present disclosure describes methods and systems for detecting microbes in a sample. The methods are generally applicable to quantifying the number of target bacteria in a sample counted from a detection region of a flow cytometer histogram. The detection methods can be employed in the presence of other microorganisms and other non-target microbe components to selectively quantify the amount of a target microbe. The methods are advantageous over those presently existing for testing of foodstuffs and diagnostic evaluation in their speed, accuracy and ease of use. Various swab collection devices and kits useful for practicing the present disclosure are also described herein.
    Type: Application
    Filed: March 26, 2014
    Publication date: October 1, 2015
    Applicant: Vivione Biosciences, LLC
    Inventors: Dan Buzatu, Jon Wilkes, Ted Moskal, Bill Nevius, Melinda Miller, Shawn Ramsaroop
  • Patent number: 9103788
    Abstract: Methods for detecting one or more target bacteria in a test sample are provided. It is shown herein that photosensitizers combined with intense light exposure reduce fluorescing background due to non-bacterial particles. This permits detection of subsequently labeled target bacterial cells (e.g., using a fluorescently labeled antibody) against a largely black background. In particular examples, the methods include incubating the test sample in a growth medium that permits growth of bacteria present in the sample, contacting the sample with a photo-sensitizer; exposing the sample to light under conditions sufficient for the photo-sensitizer to photobleach contaminating non-bacterial particulates present in the sample. The bacteria can then be substantially separated from the sample, thereby generating an isolated bacterial sample. The method can also include contacting the isolated bacterial sample with a binding agent specific for the one or more target bacteria, and detecting the one or more target bacteria.
    Type: Grant
    Filed: November 30, 2012
    Date of Patent: August 11, 2015
    Assignees: THE UNITED STATES OF AMERICA, AS REPRESENTED BY THE SECRETARY, DEPARTMENT OF HEALTH AND HUMAN SERVICES, VIVIONE BIOSCIENCES, LLC
    Inventors: Jon G. Wilkes, Dan Buzatu, Randal Tucker, Thaddeus John Moskal, Jr.
  • Publication number: 20150065853
    Abstract: A system and method for preprocessing magnetic resonance spectroscopy (MRS) data of brain tissue for pattern-based diagnostics is disclosed. The MRS preprocessing system includes an MRS preprocessing module that executes an operation that normalizes MRS spectrum data, recalibrates and scales the normalized MRS spectrum data, and then renormalizes the scaled MRS spectrum data. The resulting preprocessed MRS data is used to assist in identifying abnormalities in tissues shown in MRS scans.
    Type: Application
    Filed: September 5, 2014
    Publication date: March 5, 2015
    Applicant: The United States of America, as represented by the Secretary, Dept. of Health and Human Services
    Inventors: Jon G. Wilkes, Dan A. Buzatu, Pierre Alusta, Bruce Pearce, Ryan M. Kretzer, Inessa IM, Richard D. Beger
  • Patent number: 8880354
    Abstract: A system and method for preprocessing magnetic resonance spectroscopy (MRS) data of brain tissue for pattern-based diagnostics is disclosed. The MRS preprocessing system includes an MRS preprocessing module that executes an operation that normalizes MRS spectrum data, recalibrates and scales the normalized MRS spectrum data, and then renormalizes the scaled MRS spectrum data. The resulting preprocessed MRS data is used to assist in identifying abnormalities in tissues shown in MRS scans.
    Type: Grant
    Filed: November 12, 2010
    Date of Patent: November 4, 2014
    Assignee: The United States of America, as Represented by the Secretary, Department of Health and Human Services
    Inventors: Jon G. Wilkes, Dan A. Buzatu, Pierre Alusta, Bruce Pearce, Ryan M. Kretzer, Inessa Im, Richard D. Beger
  • Patent number: 8704169
    Abstract: Disclosed is a mass spectrometer for analyzing a sample that has or is suspected of having microorganisms. The disclosed mass spectrometer has been uniquely configured to include a sample platform which functions as a counter electrode or discharge electrode and a surface to provide the sample to be analyzed. The mass spectrometer also includes an ion source positioned adjacent to the sample platform for ionizing and volatizing molecules within the sample, wherein the sample platform and the ion source are positioned such that during operation of the mass spectrometer an electrical discharge takes place between the ion source and the sample platform. Also disclosed are methods for generating a mass spectrum profile/fingerprint of a sample. The methods include positioning a sample platform having a sample adjacent to an ion source.
    Type: Grant
    Filed: October 11, 2011
    Date of Patent: April 22, 2014
    Assignee: The United States of America, as represented by the Secretary, Department of Health and Human Services
    Inventors: Pierre Alusta, Cameron Dorey, William Ryan Parker, Jon G. Wilkes, Dan Buzatu
  • Publication number: 20130131992
    Abstract: A system and method for preprocessing magnetic resonance spectroscopy (MRS) data of brain tissue for pattern-based diagnostics is disclosed. The MRS preprocessing system includes an MRS preprocessing module that executes an operation that normalizes MRS spectrum data, recalibrates and scales the normalized MRS spectrum data, and then renormalizes the scaled MRS spectrum data. The resulting preprocessed MRS data is used to assist in identifying abnormalities in tissues shown in MRS scans.
    Type: Application
    Filed: November 12, 2010
    Publication date: May 23, 2013
    Applicant: The Government USA as Represented by the Secretary Dept. of Health and Human Services
    Inventors: Jon G. Wilkes, Dan A. Buzatu, Pierre Alusta, Bruce Pearce, Ryan M. Kretzer, Inessa Im, Richard D. Beger
  • Publication number: 20130087700
    Abstract: Disclosed is a mass spectrometer for analyzing a sample that has or is suspected of having microorganisms. The disclosed mass spectrometer has been uniquely configured to include a sample platform which functions as a counter electrode or discharge electrode and a surface to provide the sample to be analyzed. The mass spectrometer also includes an ion source positioned adjacent to the sample platform for ionizing and volatizing molecules within the sample, wherein the sample platform and the ion source are positioned such that during operation of the mass spectrometer an electrical discharge takes place between the ion source and the sample platform. Also disclosed are methods for generating a mass spectrum profile/fingerprint of a sample. The methods include positioning a sample platform having a sample adjacent to an ion source.
    Type: Application
    Filed: October 11, 2011
    Publication date: April 11, 2013
    Inventors: Pierre Alusta, Cameron Dorey, William Ryan Parker, Jon G. Wilkes, Dan Buzatu
  • Publication number: 20110217694
    Abstract: In various embodiments, the present disclosure describes methods and systems for detecting microbes in a sample. The methods are generally applicable to quantifying the number of target bacteria in a sample counted from a detection region of a flow cytometer histogram. The detection methods can be employed in the presence of other microorganisms and other non-target microbe components to selectively quantify the amount of a target microbe. The methods are advantageous over those presently existing for testing of foodstuffs and diagnostic evaluation in their speed, accuracy and ease of use. Various swab collection devices and kits useful for practicing the present disclosure are also described herein.
    Type: Application
    Filed: August 17, 2009
    Publication date: September 8, 2011
    Inventors: Dan A. Buzatu, Jon G. Wilkes, Ted A. Moskal, Bill Nevius, Jason T. Taylor, Randal K. Tucker, Melinda Miller, Shawn Ramsanoop
  • Publication number: 20110085971
    Abstract: The present invention provides a novel approach to cancer therapy and diagnostics that utilizes nanotubes and other similar nanostructures as both an indirect source of radiation therapy (BNCT), and as delivery vehicles for other types of radio- and chemo-therapeutic materials, as well as imaging agents for diagnostic purposes.
    Type: Application
    Filed: October 15, 2010
    Publication date: April 14, 2011
    Inventors: Dan A. Buzatu, Jon G. Wilkes, Dwight Miller, Jerry A. Darsey, Tom Heinze, Alex Birls, Richard Beger
  • Publication number: 20110085972
    Abstract: The present invention provides a novel approach to cancer therapy and diagnostics that utilizes nanotubes and other similar nanostructures as both an indirect source of radiation therapy (BNCT), and as delivery vehicles for other types of radio- and chemo-therapeutic materials, as well as imaging agents for diagnostic purposes.
    Type: Application
    Filed: October 15, 2010
    Publication date: April 14, 2011
    Inventors: Dan A. Buzatu, Jon G. Wilkes, Dwight Miller, Jerry A. Darsey, Tom Heinze, Alex Birts, Richard Beger
  • Publication number: 20110027174
    Abstract: The present invention provides a novel approach to cancer therapy and diagnostics that utilizes nanotubes and other similar nanostructures as both an indirect source of radiation therapy (BNCT), and as delivery vehicles for other types of radio- and chemo-therapeutic materials, as well as imaging agents for diagnostic purposes.
    Type: Application
    Filed: October 15, 2010
    Publication date: February 3, 2011
    Inventors: Dan A. Buzatu, Jon G. Wilkes, Dwight Miller, Jerry A. Darsey, Tom Heinze, Alex Birls, Richard Beger
  • Patent number: 7824660
    Abstract: The present invention provides a novel approach to cancer therapy and diagnostics that utilizes nanotubes and other similar nanostructures as both an indirect source of radiation therapy (BNCT), and as delivery vehicles for other types of radio- and chemo-therapeutic materials, as well as imaging agents for diagnostic purposes.
    Type: Grant
    Filed: April 30, 2008
    Date of Patent: November 2, 2010
    Inventors: Dan A. Buzatu, Jon G. Wilkes, Dwight Miller, Jerry A. Darsey, Tom Heinze, Alex Birls, Richard Beger
  • Patent number: 7684934
    Abstract: A method for reproducibly analyzing mass spectra from different sample sources is provided. The method deconvolutes the complex spectra by collapsing multiple peaks of different molecular mass that originate from the same molecular fragment into a single peak. The differences in molecular mass are apparent differences caused by different charge states of the fragment and/or different metal ion adducts and/or reactant products of one or more of the charge states. The deconvoluted spectrum is compared to a library of mass spectra acquired from samples of known identity to unambiguously determine the identity of one or more components of the sample undergoing analysis.
    Type: Grant
    Filed: June 7, 2004
    Date of Patent: March 23, 2010
    Assignee: The United States of America as represented by the Department of Health and Human Services
    Inventors: Alexandre Shvartsburg, Jon G. Wilkes, Paul Chiarelli, Ricky D. Holland, Dan A. Buzatu, Michael A. Beaudoin
  • Patent number: 7608240
    Abstract: The present invention provides a novel approach to cancer therapy and diagnostics that utilizes nanotubes and other similar nanostructures as both an indirect source of radiation therapy (BNCT), and as delivery vehicles for other types of radio- and chemo-therapeutic materials, as well as imaging agents for diagnostic purposes.
    Type: Grant
    Filed: December 6, 2004
    Date of Patent: October 27, 2009
    Assignee: Board of Trustees of the University of Arkansas
    Inventors: Dan A. Buzatu, Jon G. Wilkes, Dwight Miller, Jerry A. Darsey, Tom Heinze, Alex Biris, Richard Berger, Mark Diggs
  • Publication number: 20090022655
    Abstract: The present invention provides a novel approach to cancer therapy and diagnostics that utilizes nanotubes and other similar nanostructures as both an indirect source of radiation therapy (BNCT), and as delivery vehicles for other types of radio- and chemo-therapeutic materials, as well as imaging agents for diagnostic purposes.
    Type: Application
    Filed: April 30, 2008
    Publication date: January 22, 2009
    Inventors: Dan A. Buzatu, Jon G. Wilkes, Dwight Miller, Jerry A. Darsey, Tom Heinze, Alex Birls, Richard Beger
  • Publication number: 20080017847
    Abstract: A molecular structure. In one embodiment, the molecular structure includes a nanotube formed with a plurality of carbon atoms having a first end, an opposite, second end, and a body portion defined therebetween, wherein the body portion has an interior surface defining a cavity, an opposite, exterior surface and a longitudinal axis therethrough the cavity, and a porphyrin molecule having a plurality of carbon atoms and a first plurality of hydrogen atoms, wherein at its original state the porphyrin molecule has a plurality of pyrrole units and each pyrrole unit is coupled to another pyrrole unit through a methine bridge so as to form a ring structure with a second plurality of hydrogen atoms positioned peripherally along the ring structure. The porphyrin molecule is chemically coupled to the interior surface of the nanotube such that at least one of the second plurality of hydrogen atoms positioned peripherally along the ring structure is replaced by a carbon atom of the nanotube.
    Type: Application
    Filed: September 13, 2005
    Publication date: January 24, 2008
    Applicant: Board of Trustees of the University of Arkansas
    Inventors: Jerry Darsey, Dan Buzatu, Freddy Nguyen
  • Publication number: 20070269814
    Abstract: A method of determining the presence and level of microorganisms and/or chemicals in samples taken from generally any non-laboratory substance or environment. The method preferably comprises one or a combination of the steps of (a) prescreening for threshold levels of targeted microorganisms and/or (b) confirming the presence of targeted microorganisms or chemicals by mass spectrometry fingerprint analysis.
    Type: Application
    Filed: November 10, 2006
    Publication date: November 22, 2007
    Applicant: LITMUS, L.L.C.
    Inventors: JON WILKES, DAN BUZATU, DWIGHT MILLER, DANIEL CURTIS, MARK DIGGS, RAJESH NAYAK, FATEMEH RAFII, JOHN SUTHERLAND, RANDAL TUCKER