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Title: Subcellular analysis by laser ablation electrospray ionization mass spectrometry

Patent ·
OSTI ID:1164685

In various embodiments, a method of laser ablation electrospray ionization mass spectrometry (LAESI-MS) may generally comprise micro-dissecting a cell comprising at least one of a cell wall and a cell membrane to expose at least one subcellular component therein, ablating the at least one subcellular component by an infrared laser pulse to form an ablation plume, intercepting the ablation plume by an electrospray plume to form ions, and detecting the ions by mass spectrometry.

Research Organization:
George Washington Univ., Washington, DC (United States)
Sponsoring Organization:
USDOE
DOE Contract Number:
FG02-01ER15129
Assignee:
George Washington University (Washington, DC)
Patent Number(s):
8,901,487
Application Number:
13/045,277
OSTI ID:
1164685
Resource Relation:
Patent File Date: 2011 Mar 10
Country of Publication:
United States
Language:
English

References (87)

Frequency standard using an atomic fountain of optically trapped atoms patent August 1994
Concentration of biological samples on a microliter scale and analysis by capillary electrophoresis patent June 1998
Atmospheric pressure matrix assisted laser desorption patent October 1999
Fast controllable laser lysis of cells for analysis patent December 2000
Ion mobility spectrometer, spectrometer analyte detection and identification verification system, and method patent December 2002
Methods and apparatus for cell analysis patent March 2003
Miniaturized cell array methods and apparatus for cell-based screening patent April 2003
Automated sample processing for identification of microorganisms and proteins patent May 2003
Mass spectrometric methods for biomolecular screening patent December 2003
Method and apparatus for feedback controlled electrospray patent June 2004
Atmospheric pressure ion source patent September 2005
Solid phase sequencing of double-stranded nucleic acids patent January 2006
Method for increasing ionization efficiency in mass spectroscopy patent August 2006
Apparatus and method for sensor control and feedback patent August 2006
Method for atmospheric pressure analyte ionization patent September 2006
Laser desorption and ionization mass spectrometer with quantitative reproducibility patent October 2006
MALDI-IM-ortho-TOF mass spectrometry with simultaneous positive and negative mode detection patent January 2007
Combined chemical/biological agent detection system and method utilizing mass spectrometry patent September 2007
Method and system for desorption electrospray ionization patent February 2008
Mass spectrometric based method for sample identification patent March 2008
Gold implantation/deposition of biological samples for laser desorption two and three dimensional depth profiling of biological tissues patent December 2009
Pattern recognition of whole cell mass spectra patent March 2010
Mass spectrometric imaging method under ambient conditions using electrospray-assisted laser desorption ionization mass spectrometry patent March 2010
Electrospray-assisted laser desorption ionization device, mass spectrometer, and method for mass spectrometry patent April 2010
Methods for direct biomolecule identification by matrix-assisted laser desorption ionization (MALDI) mass spectrometry patent May 2010
Protein microscope patent June 2010
Compositions and methods for the treatment and prevention of cancer, angiogenesis, and inflammation patent March 2011
Natural marine source phospholipids comprising polyunsaturated fatty acids and their applications patent October 2011
Method and apparatus for feedback controlled electrospray patent-application December 2002
Method for searching for gene encoding nuclear transport protein patent-application September 2003
Method and device for manipulating microscopic quantities of material patent-application March 2004
Method and compositions for identifying anti-HIV therapeutic compounds patent-application June 2004
Methods and apparatuses for analyzing biological samples by mass spectrometry patent-application February 2005
Gold implantation/deposition of biological samples for laser desorption three dimensional depth profiling of tissues patent-application February 2005
Method and device for biochemical detection and analysis of subcellular compartments from a single cell patent-application March 2005
MALDI-IM-ortho-TOF mass spectrometry with simultaneous positive and negative mode detection patent-application October 2005
Method and system for desorption electrospray ionization patent-application October 2005
Combined chemical/biological agent detection system and method utilizing mass spectrometry patent-application November 2005
Laser desorption and ionization mass spectrometer with quantitative reproducibility patent-application December 2005
Gold implantation/deposition of biological samples for laser desorption two and three dimensional depth profiling of biological tissues patent-application June 2006
Peptide sequencing from peptide fragmentation mass spectra patent-application August 2006
Computational method and system for mass spectral analysis patent-application September 2006
Methods for direct biomolecule identification by matrix-assisted laser desorption ionization (MALDI) mass spectrometry patent-application May 2007
Electrospray-Assisted Laser Desorption Ionization Device, Mass Spectrometer, and Method for Mass Spectrometry patent-application August 2007
Reagents and Methods for Using Human Embryonic Stem Cells to Evaluate Toxicity of Pharmaceutical Compounds and Other Chemicals patent-application October 2007
Mass spectrometric imaging method under ambient conditions using electrospray-assisted laser desorption ionization mass spectrometry patent-application January 2008
Method of Analyzing Biosample by Laser Ablation and Apparatus Therefor patent-application January 2008
Laser Desorption Device, Mass Spectrometer Assembly, and Method for Ambient Liquid Mass Spectrometry patent-application May 2008
Hypolipidemic and/or hypocholesteremic compounds obtainable from the goldenseal plant patent-application May 2008
Mass Spectrometry With Laser Ablation patent-application June 2008
Protein Microscope patent-application June 2008
Rare Cell Analysis Using Sample Splitting and DNA Tags patent-application September 2008
Laser desorption - electrospray ion (ESI) source for mass spectrometers patent-application November 2008
Electrospray-Assisted Laser-Induced Acoustic Desorption Ionization Mass Spectrometer and a Method for Mass Spectrometry patent-application December 2008
Lamp patent-application January 2009
Imaging Mass Spectrometry Principle and Its Application in a Device patent-application October 2009
Laser Ablation Electrospray Ionization (LAESI) for Atmospheric Pressure, In Vivo, and Imaging Mass Spectrometry patent-application November 2009
Laser ablation flowing atmospheric-pressure afterglow for ambient mass spectrometry patent-application November 2009
Laser Desorption Ionization and Peptide Sequencing on Laser Induced Silicon Microcolumn Arrays patent-application December 2009
Three-Dimensional Molecular Imaging By Infrared Laser Ablation Electrospray Ionization Mass Spectrometry patent-application January 2010
Gold Implantation/Deposition of Biological Samples for Laser Desorption Two and Three Dimensional Depth Profiling of Biological Tissues patent-application April 2010
Ionization Device patent-application April 2010
Method and device for separation and depletion of certain proteins and particles using electrophoresis patent-application October 2010
Methods for Detecting Metabolic States by Laser Ablation Electrospray Ionization Mass Spectrometry patent-application November 2010
Three-Dimensional Molecular Imaging By Infrared Laser Ablation Electrospray Ionization Mass Spectrometry patent-application November 2011
Three-Dimensional Molecular Imaging By Infrared Laser Ablation Electrospray Ionization Mass Spectrometry patent-application November 2012
Free-electron-laser-based biophysical and biomedical instrumentation journal July 2003
FT-IR imaging of native and tissue-engineered bone and cartilage journal May 2007
Matrix-assisted laser desorption and ionization in the OH and CO absorption bands of aliphatic and aromatic matrices: dependence on laser wavelength and temporal beam profile journal December 1997
Ablation and analysis of small cell populations and single cells by consecutive laser pulses journal June 2010
Nanoscale Atmospheric Pressure Laser Ablation-Mass Spectrometry journal April 2001
Laser Desorption-Atmospheric Pressure Chemical Ionization Mass Spectrometry for the Analysis of Peptides from Aqueous Solutions journal November 2002
New dimension in nano-imaging: breaking through the diffraction limit with scanning near-field optical microscopy journal November 2004
Direct Protein Detection from Biological Media through Electrospray-Assisted Laser Desorption Ionization/Mass Spectrometry journal May 2006
Mass Spectrometry Sampling Under Ambient Conditions with Desorption Electrospray Ionization journal October 2004
Versatile New Ion Source for the Analysis of Materials in Open Air under Ambient Conditions journal April 2005
Laser Ablation Electrospray Ionization for Atmospheric Pressure, in Vivo, and Imaging Mass Spectrometry journal November 2007
Recent Advances in Optical Tweezers journal June 2008
Simultaneous Imaging of Small Metabolites and Lipids in Rat Brain Tissues at Atmospheric Pressure by Laser Ablation Electrospray Ionization Mass Spectrometry journal February 2010
In Situ Metabolic Profiling of Single Cells by Laser Ablation Electrospray Ionization Mass Spectrometry journal October 2009
Intact and top-down characterization of biomolecules and direct analysis using infrared matrix-assisted laser desorption electrospray ionization coupled to FT-ICR mass spectrometry journal April 2009
Infrared laser-assisted desorption electrospray ionization mass spectrometry journal January 2008
Three-Dimensional Imaging of Metabolites in Tissues under Ambient Conditions by Laser Ablation Electrospray Ionization Mass Spectrometry journal August 2009
Ambient Molecular Imaging and Depth Profiling of Live Tissue by Infrared Laser Ablation Electrospray Ionization Mass Spectrometry journal June 2008
Infrared Laser Ablation Atmospheric Pressure Photoionization Mass Spectrometry journal January 2012
Elevated subcortical choline metabolites in cognitively and clinically asymptomatic HIV patients journal March 1999
Laser Capture Microdissection journal November 1996