SG10201912164UA - System for identifying and sorting living cells - Google Patents

System for identifying and sorting living cells

Info

Publication number
SG10201912164UA
SG10201912164UA SG10201912164UA SG10201912164UA SG10201912164UA SG 10201912164U A SG10201912164U A SG 10201912164UA SG 10201912164U A SG10201912164U A SG 10201912164UA SG 10201912164U A SG10201912164U A SG 10201912164UA SG 10201912164U A SG10201912164U A SG 10201912164UA
Authority
SG
Singapore
Prior art keywords
identifying
living cells
sorting living
sorting
cells
Prior art date
Application number
SG10201912164UA
Inventor
Matthias Wagner
John Heanue
Original Assignee
1087 Systems Inc
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by 1087 Systems Inc filed Critical 1087 Systems Inc
Publication of SG10201912164UA publication Critical patent/SG10201912164UA/en

Links

Classifications

    • GPHYSICS
    • G01MEASURING; TESTING
    • G01NINVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
    • G01N15/00Investigating characteristics of particles; Investigating permeability, pore-volume, or surface-area of porous materials
    • G01N15/10Investigating individual particles
    • G01N15/14Electro-optical investigation, e.g. flow cytometers
    • G01N15/1434Electro-optical investigation, e.g. flow cytometers using an analyser being characterised by its optical arrangement
    • G01N15/1436Electro-optical investigation, e.g. flow cytometers using an analyser being characterised by its optical arrangement the optical arrangement forming an integrated apparatus with the sample container, e.g. a flow cell
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B01PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01LCHEMICAL OR PHYSICAL LABORATORY APPARATUS FOR GENERAL USE
    • B01L3/00Containers or dishes for laboratory use, e.g. laboratory glassware; Droppers
    • B01L3/50Containers for the purpose of retaining a material to be analysed, e.g. test tubes
    • B01L3/502Containers for the purpose of retaining a material to be analysed, e.g. test tubes with fluid transport, e.g. in multi-compartment structures
    • B01L3/5027Containers for the purpose of retaining a material to be analysed, e.g. test tubes with fluid transport, e.g. in multi-compartment structures by integrated microfluidic structures, i.e. dimensions of channels and chambers are such that surface tension forces are important, e.g. lab-on-a-chip
    • B01L3/502761Containers for the purpose of retaining a material to be analysed, e.g. test tubes with fluid transport, e.g. in multi-compartment structures by integrated microfluidic structures, i.e. dimensions of channels and chambers are such that surface tension forces are important, e.g. lab-on-a-chip specially adapted for handling suspended solids or molecules independently from the bulk fluid flow, e.g. for trapping or sorting beads, for physically stretching molecules
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B07SEPARATING SOLIDS FROM SOLIDS; SORTING
    • B07CPOSTAL SORTING; SORTING INDIVIDUAL ARTICLES, OR BULK MATERIAL FIT TO BE SORTED PIECE-MEAL, e.g. BY PICKING
    • B07C5/00Sorting according to a characteristic or feature of the articles or material being sorted, e.g. by control effected by devices which detect or measure such characteristic or feature; Sorting by manually actuated devices, e.g. switches
    • B07C5/34Sorting according to other particular properties
    • CCHEMISTRY; METALLURGY
    • C12BIOCHEMISTRY; BEER; SPIRITS; WINE; VINEGAR; MICROBIOLOGY; ENZYMOLOGY; MUTATION OR GENETIC ENGINEERING
    • C12NMICROORGANISMS OR ENZYMES; COMPOSITIONS THEREOF; PROPAGATING, PRESERVING, OR MAINTAINING MICROORGANISMS; MUTATION OR GENETIC ENGINEERING; CULTURE MEDIA
    • C12N5/00Undifferentiated human, animal or plant cells, e.g. cell lines; Tissues; Cultivation or maintenance thereof; Culture media therefor
    • C12N5/06Animal cells or tissues; Human cells or tissues
    • C12N5/0602Vertebrate cells
    • C12N5/0608Germ cells
    • C12N5/0612Germ cells sorting of gametes, e.g. according to sex or motility
    • GPHYSICS
    • G01MEASURING; TESTING
    • G01NINVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
    • G01N15/00Investigating characteristics of particles; Investigating permeability, pore-volume, or surface-area of porous materials
    • G01N15/10Investigating individual particles
    • G01N15/14Electro-optical investigation, e.g. flow cytometers
    • GPHYSICS
    • G01MEASURING; TESTING
    • G01NINVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
    • G01N15/00Investigating characteristics of particles; Investigating permeability, pore-volume, or surface-area of porous materials
    • G01N15/10Investigating individual particles
    • G01N15/14Electro-optical investigation, e.g. flow cytometers
    • G01N15/1425Electro-optical investigation, e.g. flow cytometers using an analyser being characterised by its control arrangement
    • G01N15/1427Electro-optical investigation, e.g. flow cytometers using an analyser being characterised by its control arrangement with the synchronisation of components, a time gate for operation of components, or suppression of particle coincidences
    • GPHYSICS
    • G01MEASURING; TESTING
    • G01NINVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
    • G01N15/00Investigating characteristics of particles; Investigating permeability, pore-volume, or surface-area of porous materials
    • G01N15/10Investigating individual particles
    • G01N15/14Electro-optical investigation, e.g. flow cytometers
    • G01N15/1429Electro-optical investigation, e.g. flow cytometers using an analyser being characterised by its signal processing
    • G01N15/1433
    • GPHYSICS
    • G01MEASURING; TESTING
    • G01NINVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
    • G01N15/00Investigating characteristics of particles; Investigating permeability, pore-volume, or surface-area of porous materials
    • G01N15/10Investigating individual particles
    • G01N15/14Electro-optical investigation, e.g. flow cytometers
    • G01N15/1434Electro-optical investigation, e.g. flow cytometers using an analyser being characterised by its optical arrangement
    • GPHYSICS
    • G01MEASURING; TESTING
    • G01NINVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
    • G01N15/00Investigating characteristics of particles; Investigating permeability, pore-volume, or surface-area of porous materials
    • G01N15/10Investigating individual particles
    • G01N15/14Electro-optical investigation, e.g. flow cytometers
    • G01N15/1456Electro-optical investigation, e.g. flow cytometers without spatial resolution of the texture or inner structure of the particle, e.g. processing of pulse signals
    • G01N15/1459Electro-optical investigation, e.g. flow cytometers without spatial resolution of the texture or inner structure of the particle, e.g. processing of pulse signals the analysis being performed on a sample stream
    • GPHYSICS
    • G01MEASURING; TESTING
    • G01NINVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
    • G01N15/00Investigating characteristics of particles; Investigating permeability, pore-volume, or surface-area of porous materials
    • G01N15/10Investigating individual particles
    • G01N15/14Electro-optical investigation, e.g. flow cytometers
    • G01N15/1468Electro-optical investigation, e.g. flow cytometers with spatial resolution of the texture or inner structure of the particle
    • G01N15/147Electro-optical investigation, e.g. flow cytometers with spatial resolution of the texture or inner structure of the particle the analysis being performed on a sample stream
    • GPHYSICS
    • G01MEASURING; TESTING
    • G01NINVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
    • G01N15/00Investigating characteristics of particles; Investigating permeability, pore-volume, or surface-area of porous materials
    • G01N15/10Investigating individual particles
    • G01N15/14Electro-optical investigation, e.g. flow cytometers
    • G01N15/1484Electro-optical investigation, e.g. flow cytometers microstructural devices
    • GPHYSICS
    • G01MEASURING; TESTING
    • G01NINVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
    • G01N21/00Investigating or analysing materials by the use of optical means, i.e. using sub-millimetre waves, infrared, visible or ultraviolet light
    • G01N21/17Systems in which incident light is modified in accordance with the properties of the material investigated
    • G01N21/1702Systems in which incident light is modified in accordance with the properties of the material investigated with opto-acoustic detection, e.g. for gases or analysing solids
    • GPHYSICS
    • G01MEASURING; TESTING
    • G01NINVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
    • G01N21/00Investigating or analysing materials by the use of optical means, i.e. using sub-millimetre waves, infrared, visible or ultraviolet light
    • G01N21/17Systems in which incident light is modified in accordance with the properties of the material investigated
    • G01N21/25Colour; Spectral properties, i.e. comparison of effect of material on the light at two or more different wavelengths or wavelength bands
    • G01N21/31Investigating relative effect of material at wavelengths characteristic of specific elements or molecules, e.g. atomic absorption spectrometry
    • G01N21/35Investigating relative effect of material at wavelengths characteristic of specific elements or molecules, e.g. atomic absorption spectrometry using infrared light
    • G01N21/3563Investigating relative effect of material at wavelengths characteristic of specific elements or molecules, e.g. atomic absorption spectrometry using infrared light for analysing solids; Preparation of samples therefor
    • GPHYSICS
    • G01MEASURING; TESTING
    • G01NINVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
    • G01N29/00Investigating or analysing materials by the use of ultrasonic, sonic or infrasonic waves; Visualisation of the interior of objects by transmitting ultrasonic or sonic waves through the object
    • G01N29/22Details, e.g. general constructional or apparatus details
    • G01N29/24Probes
    • G01N29/2418Probes using optoacoustic interaction with the material, e.g. laser radiation, photoacoustics
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B01PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01LCHEMICAL OR PHYSICAL LABORATORY APPARATUS FOR GENERAL USE
    • B01L2200/00Solutions for specific problems relating to chemical or physical laboratory apparatus
    • B01L2200/06Fluid handling related problems
    • B01L2200/0647Handling flowable solids, e.g. microscopic beads, cells, particles
    • B01L2200/0652Sorting or classification of particles or molecules
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B01PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01LCHEMICAL OR PHYSICAL LABORATORY APPARATUS FOR GENERAL USE
    • B01L2300/00Additional constructional details
    • B01L2300/06Auxiliary integrated devices, integrated components
    • B01L2300/0627Sensor or part of a sensor is integrated
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B01PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01LCHEMICAL OR PHYSICAL LABORATORY APPARATUS FOR GENERAL USE
    • B01L2300/00Additional constructional details
    • B01L2300/08Geometry, shape and general structure
    • B01L2300/0861Configuration of multiple channels and/or chambers in a single devices
    • B01L2300/0864Configuration of multiple channels and/or chambers in a single devices comprising only one inlet and multiple receiving wells, e.g. for separation, splitting
    • G01N15/01
    • G01N15/149
    • GPHYSICS
    • G01MEASURING; TESTING
    • G01NINVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
    • G01N15/00Investigating characteristics of particles; Investigating permeability, pore-volume, or surface-area of porous materials
    • G01N15/10Investigating individual particles
    • G01N2015/1006Investigating individual particles for cytology
    • GPHYSICS
    • G01MEASURING; TESTING
    • G01NINVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
    • G01N15/00Investigating characteristics of particles; Investigating permeability, pore-volume, or surface-area of porous materials
    • G01N15/10Investigating individual particles
    • G01N15/14Electro-optical investigation, e.g. flow cytometers
    • G01N2015/1497Particle shape
    • GPHYSICS
    • G01MEASURING; TESTING
    • G01NINVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
    • G01N2201/00Features of devices classified in G01N21/00
    • G01N2201/06Illumination; Optics
    • G01N2201/061Sources
    • G01N2201/06113Coherent sources; lasers
    • G01N2201/0612Laser diodes
SG10201912164UA 2010-11-16 2011-11-16 System for identifying and sorting living cells SG10201912164UA (en)

Applications Claiming Priority (6)

Application Number Priority Date Filing Date Title
US45699710P 2010-11-16 2010-11-16
US201161464775P 2011-03-09 2011-03-09
US201161516623P 2011-04-05 2011-04-05
US201161519567P 2011-05-25 2011-05-25
US201161571051P 2011-06-20 2011-06-20
US201161575799P 2011-08-29 2011-08-29

Publications (1)

Publication Number Publication Date
SG10201912164UA true SG10201912164UA (en) 2020-02-27

Family

ID=46048107

Family Applications (3)

Application Number Title Priority Date Filing Date
SG2013031927A SG190015A1 (en) 2010-11-16 2011-11-16 System for identifying and sorting living cells
SG10201912164UA SG10201912164UA (en) 2010-11-16 2011-11-16 System for identifying and sorting living cells
SG10201509185UA SG10201509185UA (en) 2010-11-16 2011-11-16 System for identifying and sorting living cells

Family Applications Before (1)

Application Number Title Priority Date Filing Date
SG2013031927A SG190015A1 (en) 2010-11-16 2011-11-16 System for identifying and sorting living cells

Family Applications After (1)

Application Number Title Priority Date Filing Date
SG10201509185UA SG10201509185UA (en) 2010-11-16 2011-11-16 System for identifying and sorting living cells

Country Status (4)

Country Link
EP (3) EP3708674B1 (en)
JP (3) JP2014503195A (en)
SG (3) SG190015A1 (en)
WO (1) WO2012068287A2 (en)

Families Citing this family (32)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US11243494B2 (en) 2002-07-31 2022-02-08 Abs Global, Inc. Multiple laminar flow-based particle and cellular separation with laser steering
US20120225475A1 (en) 2010-11-16 2012-09-06 1087 Systems, Inc. Cytometry system with quantum cascade laser source, acoustic detector, and micro-fluidic cell handling system configured for inspection of individual cells
US10908066B2 (en) 2010-11-16 2021-02-02 1087 Systems, Inc. Use of vibrational spectroscopy for microfluidic liquid measurement
US8941062B2 (en) 2010-11-16 2015-01-27 1087 Systems, Inc. System for identifying and sorting living cells
GB2519460B (en) 2012-07-09 2018-02-21 Thermo Electron Scient Instruments Llc Motorized variable path length cell for spectroscopy
US9194786B2 (en) * 2012-08-01 2015-11-24 Owl biomedical, Inc. Particle manipulation system with cytometric capability
US8961904B2 (en) 2013-07-16 2015-02-24 Premium Genetics (Uk) Ltd. Microfluidic chip
US11796449B2 (en) 2013-10-30 2023-10-24 Abs Global, Inc. Microfluidic system and method with focused energy apparatus
EP4253936A3 (en) 2014-03-18 2024-03-20 The Regents of The University of California Parallel flow cytometer using radiofrequency mulitplexing, and method
SG11201701581YA (en) 2014-08-28 2017-04-27 Sysmex Corp Particle imaging apparatus and particle imaging method
US10620124B2 (en) 2014-10-20 2020-04-14 Hitachi, Ltd. Optical analysis device and biomolecular analysis device
US10206663B2 (en) * 2015-01-14 2019-02-19 Roc8Sci Co. Apparatus for drawing of a bodily fluid and method therefor
JP2018509615A (en) * 2015-02-19 2018-04-05 プレミアム ジェネティクス (ユーケー) リミテッド Scanning infrared measurement system
EP4194801A1 (en) 2015-02-24 2023-06-14 The University of Tokyo Dynamic high-speed high-sensitivity imaging device and imaging method
JP6713730B2 (en) * 2015-05-20 2020-06-24 シスメックス株式会社 Cell detection device and cell detection method
KR102600559B1 (en) 2015-10-13 2023-11-10 벡톤 디킨슨 앤드 컴퍼니 Multimodal fluorescence imaging flow cytometry system
US11098275B2 (en) 2015-10-28 2021-08-24 The University Of Tokyo Analysis device
CA3011719A1 (en) 2016-01-21 2017-07-27 Protein Dynamic Solutions Llc Method and system for spectral data analysis
EP3469338A4 (en) * 2016-06-10 2020-01-15 The Regents of the University of California Image-based cell sorting systems and methods
US11119029B2 (en) * 2016-09-22 2021-09-14 Imec Vzw Particle detection using thin lenses
CN108458963B (en) * 2018-04-13 2023-06-06 大连海事大学 Microfluidic chip device and method for sequentially separating and counting particles and cells based on nano-micro channel combination
BR112020023607A2 (en) 2018-05-23 2021-02-17 Abs Global, Inc. systems and methods for focusing particles on microchannels
EP3807005B1 (en) * 2018-06-13 2023-10-25 ThinkCyte K.K. Methods and systems for cytometry
CN113784618B (en) 2019-04-18 2023-12-22 艾步思国际有限责任公司 System and process for continuous addition of cryoprotectant
CN114303050A (en) * 2019-07-10 2022-04-08 贝克顿·迪金森公司 Reconfigurable integrated circuit for adjusting cell sorting classification
US11628439B2 (en) 2020-01-13 2023-04-18 Abs Global, Inc. Single-sheath microfluidic chip
EP4143535A4 (en) * 2020-04-28 2023-09-13 Becton, Dickinson and Company Method for index sorting unique phenotypes and systems for same
KR102450943B1 (en) * 2020-07-30 2022-10-04 아주대학교산학협력단 Biosensor, manufacturing method thereof and analysis method using the same
JP7170367B2 (en) * 2020-09-28 2022-11-14 日本分光株式会社 Infrared circular dichroism measuring device
KR102564301B1 (en) * 2021-11-18 2023-08-07 고등기술연구원연구조합 Apparatus for measuring damage of filter and measuring method using the same
CN114778422B (en) * 2022-04-19 2023-09-08 北京理工大学 Automatic cell sorting system and method based on micro-droplet control technology
WO2023220536A2 (en) * 2022-05-08 2023-11-16 The General Hospital Corporation Systems and methods for sorting using laser particles or cells

Family Cites Families (19)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4765737A (en) * 1987-03-30 1988-08-23 Cornell Research Foundation Cell size measurements using light in flow cytometry and cell sorting
FI98765C (en) * 1995-01-16 1997-08-11 Erkki Soini Flow cytometric method and apparatus
US6031232A (en) * 1995-11-13 2000-02-29 Bio-Rad Laboratories, Inc. Method for the detection of malignant and premalignant stages of cervical cancer
JP3454173B2 (en) * 1998-11-09 2003-10-06 三菱電機株式会社 Optical dust sensor optical system
US6853654B2 (en) 1999-07-27 2005-02-08 Intel Corporation Tunable external cavity laser
CA2408939C (en) * 2000-05-09 2011-11-08 Xy, Inc. High purity x-chromosome bearing and y-chromosome bearing populations of spermatozoa
US6749565B2 (en) * 2000-07-08 2004-06-15 Victor Chudner Method for blood infrared spectroscopy diagnosing of inner organs pathology
AU2002234621A1 (en) * 2001-01-22 2002-07-30 Ralf Masuch Rapid test for biological substances using ftir
EP1715327A3 (en) * 2002-04-03 2007-01-10 Johann Wolfgang Goethe-Universität Frankfurth am Main Infrared measuring device, especially for the spectrometry of aqueous systems, preferably multiple component systems
US7699767B2 (en) * 2002-07-31 2010-04-20 Arryx, Inc. Multiple laminar flow-based particle and cellular separation with laser steering
DK2309245T3 (en) * 2003-03-28 2016-01-04 Inguran Llc Methods for providing sex-sorted animal semen
NZ544103A (en) * 2003-05-15 2010-10-29 Xy Llc Efficient haploid cell sorting for flow cytometer systems
US7391795B2 (en) * 2003-08-01 2008-06-24 Nippon Telegraph And Telephone Corporation Laser light source
EP1663460B1 (en) * 2003-09-04 2015-07-08 Premium Genetics (UK) Limited Multiple laminar flow-based particle and cellular separation with laser steering
NZ530972A (en) * 2004-02-05 2005-04-29 Embrionics Ltd A method and apparatus for orientating and selecting cells
WO2005115737A2 (en) * 2004-03-22 2005-12-08 Quantaspec Inc. System and method for detecting and identifying an analyte
JP4921307B2 (en) * 2007-10-02 2012-04-25 日本電信電話株式会社 Optical absorption analyzer
AU2011319559B2 (en) * 2010-10-20 2015-02-19 Unilever Plc Foaming agents comprising hydrophobin
EP3933038A1 (en) * 2020-07-02 2022-01-05 Technische Universität München Modified terpene synthases and their use for production of pseudopterosin intermediates and/or pseudopterosins

Also Published As

Publication number Publication date
EP2640844A2 (en) 2013-09-25
JP2019022536A (en) 2019-02-14
EP3708674B1 (en) 2023-06-07
EP2640844B1 (en) 2021-03-24
SG190015A1 (en) 2013-06-28
WO2012068287A2 (en) 2012-05-24
EP2640844A4 (en) 2018-03-21
JP6911254B2 (en) 2021-07-28
WO2012068287A3 (en) 2012-10-04
EP4227666A1 (en) 2023-08-16
JP2017012197A (en) 2017-01-19
EP3708674A1 (en) 2020-09-16
JP2014503195A (en) 2014-02-13
SG10201509185UA (en) 2015-12-30

Similar Documents

Publication Publication Date Title
SG10201912164UA (en) System for identifying and sorting living cells
EP2539837A4 (en) Classification system and method
EP2613400A4 (en) Battery and battery system
EP2646057A4 (en) Methods and systems for spatially identifying abnormal cells
IL226156A0 (en) Modular electrochemical systems and methods
EP2593036A4 (en) Dental analysis method and system
GB2498149B (en) Battery management system and method
EP2537016A4 (en) Biological sample collection system
EP2702133A4 (en) Cell sorter system and method
HK1165242A1 (en) Ophthalmological analysis method and analysis system
EP2646283A4 (en) Loading analysis system and method
EP2845261A4 (en) System and method for identifying batteries
EP2599043A4 (en) Collaborative structured analysis system and method
EP2642928A4 (en) System for improved tissue handling and in line analysis of the tissue
EP2622515A4 (en) Collecting and presenting information
EP2596006A4 (en) Methods and systems for analysis of single cells
EP2577423A4 (en) Teleprompting system and method
EP2529302A4 (en) Processor-cache system and method
EP2623057A4 (en) Bone plate and bone plate system
SG11201401913YA (en) Systems and methods for biological analysis
HK1179494A1 (en) Analyte testing method and system
EP2601590A4 (en) System and method for social collection
ZA201207694B (en) Automated small object sorting systems and methods
EP2543999A4 (en) Cell detection method and cell detection system
EP2533348A4 (en) Charging system and charging method