Patents Assigned to Digital Bio Technology Co., Ltd.
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Publication number: 20120003725Abstract: Disclosed is a microfluidic chip capable of accurately and quickly detecting presence of a trace amount of a target within a fluid sample. It has a channel structure comprising a sample inlet for feeding a sample therethrough, a first reservoir for primarily storing the sample therein, a second reservoir for secondarily storing the sample therein, a first reaction portion in which a target is conjugated with a label, a second reaction portion in which the labeled target undergoes a specific reaction, such as an antigen-antibody reaction, and a delaying portion, located between the first and the second reaction portion, for decreasing a flow rate of the sample.Type: ApplicationFiled: November 21, 2008Publication date: January 5, 2012Applicant: DIGITAL BIO TECHNOLOGY CO., LTD.Inventors: Hyun Chang Lim, Jun Ha Park, Chang Seop Lee, Hyun Joo Jung, Ji Young Park, Chan Il Chung, Jun Keun Chang
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Publication number: 20110294197Abstract: Disclosed is a module for rapidly detecting analytes in fluids with high effectiveness and a chip having the module. The module includes a microchannel, which has a filtering zone for removing noise materials and a reaction zone wherein labeling reaction and immobilization reaction for detection of analytes are performed, sample fluid moving through the microchannel due to capillary floating. In a case where the chip having the module is used in detecting analytes in fluids, it is possible to minimize dead volume of sample fluid so that high effective volume ratio can be implemented. Therefore, the chip can be used in detecting analytes from the minimum amount of sample fluid.Type: ApplicationFiled: July 23, 2008Publication date: December 1, 2011Applicant: DIGITAL BIO TECHNOLOGY CO., LTD.Inventors: Jun Ha Park, Chang Seop Lee, Hyun Chang Lim, Chan Il Chung, Jun Keun Chang
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Publication number: 20110036152Abstract: Disclosed is a fluid analysis chip including a microchannel formed within the chip. The chip includes a sample and a sample outlet communicating with an outside of the chip, and has a structure where the sample inlet and the sample outlet communicate with each other through the closed channel. An expanding part formed in a longitudinal direction of a channel in such a manner that a pair of inner walls corresponding to each other has a larger sectional area at a part or a whole thereof is formed. Therefore, fluids, which pass through the channel adjacent to the expanding part, move while making contact with only another pair of inner walls of the channel, which correspond to each other.Type: ApplicationFiled: March 23, 2010Publication date: February 17, 2011Applicant: Digital Bio Technology Co., Ltd.Inventors: Jun Ha Park, Chan Il Chung, Jun Keun Chang, Dae Sung Hur, Ji Young Park
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Publication number: 20110030458Abstract: Disclosed is a fluid analysis chip including a microchannel formed within the chip. The chip includes a sample and a sample outlet communicating with an outside of the chip, and has a structure where the sample inlet and the sample outlet communicate with each other through the closed channel. An expanding part formed in a longitudinal direction of a channel in such a manner that a pair of inner walls corresponding to each other has a larger sectional area at a part or a whole thereof is formed. Therefore, fluids, which pass through the channel adjacent to the expanding part, move while making contact with only another pair of inner walls of the channel, which correspond to each other.Type: ApplicationFiled: July 23, 2008Publication date: February 10, 2011Applicant: DIGITAL BIO TECHNOLOGY CO., LTD.Inventors: Jun Ha Park, Chan Il Chung, Jun Keun Chang
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Patent number: 7751040Abstract: Disclosed is a microchip for a flowcytometer. A channel is expanded around a point, on which laser beams emitted from an optical unit are focused, so that focused sample particles slow down when they pass the expanded portion. This improves the detection intensity of sample particles.Type: GrantFiled: September 27, 2006Date of Patent: July 6, 2010Assignees: Digital Bio Technology Co., Ltd., Seoul National University Industry FoundationInventors: Jun-Keun Chang, Hyun-Woo Bang, Ho-Young Yun, Keun-Chang Cho, Chan-Il Chung
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Publication number: 20100012575Abstract: Disclosed is a channel filter for separating microparticles, and more particularly to a channel filter which can easily separate a sample having various sized microparticles by using a surface topology. In the disclosed channel filter, a topology having an upward/downward reference height from a sample inlet to an outlet is continuously or discontinuously formed, and thus it is possible to efficiently separate microparticles from a sample liquid.Type: ApplicationFiled: November 2, 2007Publication date: January 21, 2010Applicant: DIGITAL BIO TECHNOLOGY CO., LTD.Inventors: Dae-Sung Hur, Jun-Ha Park, Chan- Il Chung, Jun-Keun Chang
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Publication number: 20100003744Abstract: Disclosed is a a flow cytometer for diagnosis of HIV infections. A fluorescent material having a relatively lower fluorescence intensity is conjugated with one marker and another fluorescent material having a relatively higher fluorescence intensity is conjugated with the other marker. The two markers can be sorted and counted individually and simultaneously from the fluorescence intensity difference.Type: ApplicationFiled: September 11, 2009Publication date: January 7, 2010Applicant: DIGITAL BIO TECHNOLOGY CO., LTD.Inventors: Jun-keun CHANG, Chan-il CHUNG, Ho-young YUN, Hyun-woo BANG
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Publication number: 20090035802Abstract: Disclosed is a method for detecting and counting cell surface markers using a difference in fluorescence intensities. A fluorescent material having a relatively lower fluorescence intensity is conjugated with one marker and another fluorescent material having a relatively higher fluorescence intensity is conjugated with the other marker. The two markers can be sorted and counted individually and simultaneously from the fluorescence intensity difference.Type: ApplicationFiled: July 31, 2007Publication date: February 5, 2009Applicant: Digital Bio Technology, Co., Ltd.Inventors: Jun-keun Chang, Chan-il Chung, Ho-young Yun, Hyun-woo Bang
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Publication number: 20080218753Abstract: Disclosed is a microchip for a flowcytometer. A channel is expanded around a point, on which laser beams emitted from an optical unit are focused, so that focused sample particles slow down when they pass the expanded portion. This improves the detection intensity of sample particles.Type: ApplicationFiled: September 27, 2006Publication date: September 11, 2008Applicant: DIGITAL BIO TECHNOLOGY CO., LTD.Inventors: Jun-Keun Chang, Hyun-Woo Bang, Ho-Young Yun, Keun-Chang Cho, Chan-Il Chung
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Publication number: 20070275454Abstract: An electroporation apparatus comprising an elongated hollow member in order to provide a uniform electric field during electroporation, wherein specifically, electroporation is carried out by applying electric pulses through a couple of electrodes from both end parts of the elongated hollow member, after the hollow member is charged with fluid specimen including cells and material which would be injected into the cells.Type: ApplicationFiled: June 13, 2005Publication date: November 29, 2007Applicant: Digital Bio Technology Co., Ltd.Inventors: Jun-Keun Chang, Keun-Chang Cho, Chan-Il Chung, Young-Shik Shin, Jeong-Ah Kim, Neon-Cheol Jung