SU1260778A1 - Device for fluorescent analysis of individual microparticles in flow - Google Patents
Device for fluorescent analysis of individual microparticles in flow Download PDFInfo
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- SU1260778A1 SU1260778A1 SU853882874A SU3882874A SU1260778A1 SU 1260778 A1 SU1260778 A1 SU 1260778A1 SU 853882874 A SU853882874 A SU 853882874A SU 3882874 A SU3882874 A SU 3882874A SU 1260778 A1 SU1260778 A1 SU 1260778A1
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- fluorescence
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- Investigating, Analyzing Materials By Fluorescence Or Luminescence (AREA)
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Abstract
Изобретение предназначено дл счета и анализа отдельных микрочастиц б потоке транспортной среды пу- тем регистрации флуоресценции объек-: та. Изобретение представл ет собой, устройство, состо щее из источника света, оптической системы, проточной камеры, устройства, создающего посто нное давление струи исследуемой жидкости, и детектора флуоресценции . Проточна кювета выполнена в виде трубки, сужающейс книзу в капилл р с выходньм отверстием 80- 100 мкм. К другому концу кюветы приварено оптическое окно таким образом что позвол ет направл ть свет, возбуждающий флуоресценцию по оси жидкости , вытекающей через капилл р и транспортирующей анализируемые частицы . Изобретение позвол ет практически полностью исключить рассе ние возбуждающего света, в объеме струи, где измер етс флуоресценци детектором , что приводит к возрастанию чувствительности определени . Отсутствие рассе нной компоненты возбуждающего излучени позвол ет снизить требование к запиракицим фильтрам, что также вли ет на увеличение флуоресцентного сигнала, а следовательно на повьшение чувствительности уста- HoekHi 1 ил. i (Л iNd О) о 00The invention is intended for counting and analyzing individual microparticles b of the transport medium stream by detecting the fluorescence of an object: that. The invention is a device consisting of a light source, an optical system, a flow chamber, a device that creates a constant pressure of the jet of the test liquid, and a fluorescence detector. The flow cell is made in the form of a tube, tapering downwards into the capillary with an outlet of 80-100 microns. An optical window is welded to the other end of the cuvette in such a way that it directs the light that excites the fluorescence along the axis of the liquid flowing through the capillary and transporting the particles being analyzed. The invention makes it possible to almost completely eliminate the scattering of the exciting light in the jet volume, where the fluorescence is measured by the detector, which leads to an increase in the detection sensitivity. The absence of the scattered component of the excitation radiation reduces the requirement for locking the filters, which also affects the increase in the fluorescent signal and, consequently, the increase in sensitivity of the HoekHi 1 sludge filter. i (L iNd O) o 00
Description
Изобретение относитс к биологическим и медицинским исследовани м и предназначено дл счета и анализа отдельных микрочастиц в потоке трано портной среды путем регистрации флуо- ,ресценции объекта,The invention relates to biological and medical research and is intended for counting and analyzing individual microparticles in the flow of the transport medium by recording the fluorescence of the object,
Цель изобретени - повьшение чувствительности устройства. The purpose of the invention is to increase the sensitivity of the device.
На чертеже изображено устройство.The drawing shows the device.
Устройство содержит источник 1 возбуждающего света, оптическую систему в виде поворотной призмы 2, проточную кювету 3 с оптическим окном 4 на входе и каналами 5 дл поступлени частиц Пробы. Каналы 5 дл поступлени частиц пробы соединены с системами доставки 6 и 7 иссле- дуег- згх объектов, проточна кювета 3, , выполненна в вида трубки, суживающейс в капилл р с выходным отверстием 8, равным 80-100 мкм.The device comprises an excitation light source 1, an optical system in the form of a rotary prism 2, a flow cell 3 with an optical window 4 at the entrance and channels 5 for entering the Sample particles. Channels 5 for the entry of sample particles are connected to delivery systems 6 and 7 of research objects, flow cell 3, made in the form of a tube, tapering into a capillary with outlet 8, equal to 80-100 microns.
Исследуемые частицы 9, приготовленные в виде взвеси, в результате давлени , созда ваемого устройством 7, поступают из системы доставки 6 по каналам 5 в проточную кювету 3. На выходе проточной камеры формируетс стру 10, поочередно траспортирующа частицы в- информационно-измеритель- ную зону. Свет, возбуждающий флуоресценцию от источника 1 с помощью поворотной призмы 2 направл етс через оптическое окно 4 внутрь протоной кюветы по оси .струи 10. Далее вплоть до объема, где провод тс измерени , свет проходит в оптически однородной среде (жидкости) при углах , превьшающих предельный угол полного отражени . Возбуждающий свет иницииру флуоресценцию исследуемого объекта, не выходит за ее пределы и равномерно освещает информационно- измерительный объем. Флуоресцентное излучение 11 улавливаетс оптичес- . кой фокусирующей системой 12, направл етс на детектор 13 и регистрируетс устройством 14..Investigated particles 9, prepared as a suspension, as a result of pressure created by device 7, come from delivery system 6 through channels 5 to flow cell 3. At the exit of flow chamber, a jet 10 is formed, alternately transporting particles into the information-measuring zone. . The light exciting the fluorescence from the source 1 by means of the rotary prism 2 is directed through the optical window 4 inside the proton cell along the axis of the jet 10. Then up to the volume where the measurements are made, the light passes in an optically homogeneous medium (liquid) at angles exceeding maximum angle of total reflection. The exciting light initiates the fluorescence of the object under study, does not go beyond its limits and uniformly illuminates the information-measuring volume. Fluorescent radiation 11 is trapped optically. which focusing system 12, is directed to the detector 13 and recorded by the device 14 ..
Изобретение практически полносты исключает расе ние возбуждающегоThe invention almost completely eliminates the scattering of the exciting
света в информационно-измерительном объеме, что приводит к возрастанию его интенсивности и увеличивает чувствительности устройства. Отсут ствие рассе нной компоненты возбуждающегоlight in the information-measuring volume, which leads to an increase in its intensity and increases the sensitivity of the device. The absence of the scattered component of the exciting
света позвол ет снизить требовани к запирающим светофильтрам. Сигнал флуоресцентции возрастает, что также повышает чувствительность установки. Равномерное освещение информационно-измерительного объема уменьшает разброс показателей, что приводит к повьппению воспроизводимости результатов измерений и позвол ет исключить сложную систему гидрофокусировкиlight reduces the requirements for blocking light filters. The fluorescence signal increases, which also increases the sensitivity of the installation. Uniform illumination of the information-measuring volume reduces the dispersion of the indicators, which leads to greater reproducibility of the measurement results and eliminates the complex hydrofocusing system.
частиц, что, в свою очередь, упрощает конструкцию и повьшдает ее надежность .particles, which, in turn, simplifies the design and increases its reliability.
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SU853882874A SU1260778A1 (en) | 1985-01-31 | 1985-01-31 | Device for fluorescent analysis of individual microparticles in flow |
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SU853882874A SU1260778A1 (en) | 1985-01-31 | 1985-01-31 | Device for fluorescent analysis of individual microparticles in flow |
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SU1260778A1 true SU1260778A1 (en) | 1986-09-30 |
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Cited By (15)
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US6589792B1 (en) | 1998-02-27 | 2003-07-08 | Dakocytomation Denmark A/S | Method and apparatus for flow cytometry |
US7723116B2 (en) | 2003-05-15 | 2010-05-25 | Xy, Inc. | Apparatus, methods and processes for sorting particles and for providing sex-sorted animal sperm |
US7771921B2 (en) | 2000-11-29 | 2010-08-10 | Xy, Llc | Separation systems of frozen-thawed spermatozoa into X-chromosome bearing and Y-chromosome bearing populations |
US7772005B1 (en) | 1998-07-30 | 2010-08-10 | Xy, Llc | Method of establishing an equine artificial insemination sample |
US7820425B2 (en) | 1999-11-24 | 2010-10-26 | Xy, Llc | Method of cryopreserving selected sperm cells |
US7855078B2 (en) | 2002-08-15 | 2010-12-21 | Xy, Llc | High resolution flow cytometer |
US7929137B2 (en) | 1997-01-31 | 2011-04-19 | Xy, Llc | Optical apparatus |
US8137967B2 (en) | 2000-11-29 | 2012-03-20 | Xy, Llc | In-vitro fertilization systems with spermatozoa separated into X-chromosome and Y-chromosome bearing populations |
US8486618B2 (en) | 2002-08-01 | 2013-07-16 | Xy, Llc | Heterogeneous inseminate system |
US8497063B2 (en) | 2002-08-01 | 2013-07-30 | Xy, Llc | Sex selected equine embryo production system |
US9134220B2 (en) | 2004-07-27 | 2015-09-15 | Beckman Coulter, Inc. | Enhancing flow cytometry discrimination with geometric transformation |
US9145590B2 (en) | 2000-05-09 | 2015-09-29 | Xy, Llc | Methods and apparatus for high purity X-chromosome bearing and Y-chromosome bearing populations of spermatozoa |
US9365822B2 (en) | 1997-12-31 | 2016-06-14 | Xy, Llc | System and method for sorting cells |
RU2642455C2 (en) * | 2012-05-04 | 2018-01-25 | ЭКОЛАБ ЮЭсЭй ИНК. | Self-cleaning optical sensor |
US11230695B2 (en) | 2002-09-13 | 2022-01-25 | Xy, Llc | Sperm cell processing and preservation systems |
-
1985
- 1985-01-31 SU SU853882874A patent/SU1260778A1/en active
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Cited By (21)
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US7929137B2 (en) | 1997-01-31 | 2011-04-19 | Xy, Llc | Optical apparatus |
US9422523B2 (en) | 1997-12-31 | 2016-08-23 | Xy, Llc | System and method for sorting cells |
US9365822B2 (en) | 1997-12-31 | 2016-06-14 | Xy, Llc | System and method for sorting cells |
US6589792B1 (en) | 1998-02-27 | 2003-07-08 | Dakocytomation Denmark A/S | Method and apparatus for flow cytometry |
US7772005B1 (en) | 1998-07-30 | 2010-08-10 | Xy, Llc | Method of establishing an equine artificial insemination sample |
US7820425B2 (en) | 1999-11-24 | 2010-10-26 | Xy, Llc | Method of cryopreserving selected sperm cells |
US9145590B2 (en) | 2000-05-09 | 2015-09-29 | Xy, Llc | Methods and apparatus for high purity X-chromosome bearing and Y-chromosome bearing populations of spermatozoa |
US7771921B2 (en) | 2000-11-29 | 2010-08-10 | Xy, Llc | Separation systems of frozen-thawed spermatozoa into X-chromosome bearing and Y-chromosome bearing populations |
US8137967B2 (en) | 2000-11-29 | 2012-03-20 | Xy, Llc | In-vitro fertilization systems with spermatozoa separated into X-chromosome and Y-chromosome bearing populations |
US8652769B2 (en) | 2000-11-29 | 2014-02-18 | Xy, Llc | Methods for separating frozen-thawed spermatozoa into X-chromosome bearing and Y-chromosome bearing populations |
US9879221B2 (en) | 2000-11-29 | 2018-01-30 | Xy, Llc | Method of in-vitro fertilization with spermatozoa separated into X-chromosome and Y-chromosome bearing populations |
US8486618B2 (en) | 2002-08-01 | 2013-07-16 | Xy, Llc | Heterogeneous inseminate system |
US8497063B2 (en) | 2002-08-01 | 2013-07-30 | Xy, Llc | Sex selected equine embryo production system |
US7855078B2 (en) | 2002-08-15 | 2010-12-21 | Xy, Llc | High resolution flow cytometer |
US11230695B2 (en) | 2002-09-13 | 2022-01-25 | Xy, Llc | Sperm cell processing and preservation systems |
US11261424B2 (en) | 2002-09-13 | 2022-03-01 | Xy, Llc | Sperm cell processing systems |
US7723116B2 (en) | 2003-05-15 | 2010-05-25 | Xy, Inc. | Apparatus, methods and processes for sorting particles and for providing sex-sorted animal sperm |
US9134220B2 (en) | 2004-07-27 | 2015-09-15 | Beckman Coulter, Inc. | Enhancing flow cytometry discrimination with geometric transformation |
USRE46559E1 (en) | 2004-07-27 | 2017-09-26 | Beckman Coulter, Inc. | Enhancing flow cytometry discrimination with geometric transformation |
US11408813B2 (en) | 2004-07-27 | 2022-08-09 | Beckman Coulter, Inc. | Enhancing flow cytometry discrimination with geometric transformation |
RU2642455C2 (en) * | 2012-05-04 | 2018-01-25 | ЭКОЛАБ ЮЭсЭй ИНК. | Self-cleaning optical sensor |
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