-
公开(公告)号:US07442515B2
公开(公告)日:2008-10-28
申请号:US10630235
申请日:2003-07-29
申请人: Buddy D. Ratner , Xuanhong Cheng , Karl Bohringer , Yanbing Wang , Yael Hanein , Ashutosh Shastry
发明人: Buddy D. Ratner , Xuanhong Cheng , Karl Bohringer , Yanbing Wang , Yael Hanein , Ashutosh Shastry
IPC分类号: G01N33/53
CPC分类号: C12M25/06 , C12M23/20 , C12M25/02 , G01N33/545
摘要: In one aspect, the present invention provides devices for binding cells or molecules, wherein each device includes (a) a body defining a first surface and a second surface that is located opposite to the first surface; (b) a heater disposed upon the first surface; and (c) a temperature-responsive layer disposed upon the second surface. In another aspect, the present invention provides methods for binding molecules or living cells to a temperature-responsive material.
摘要翻译: 一方面,本发明提供了用于结合细胞或分子的装置,其中每个装置包括(a)限定第一表面的主体和与第一表面相对定位的第二表面; (b)设置在第一表面上的加热器; 和(c)设置在第二表面上的温度响应层。 另一方面,本发明提供了将分子或活细胞结合到温度敏感材料的方法。
-
公开(公告)号:US20110085166A1
公开(公告)日:2011-04-14
申请号:US12920262
申请日:2009-03-02
申请人: H. Daniel Ou-Yang , Xuanhong Cheng
发明人: H. Daniel Ou-Yang , Xuanhong Cheng
CPC分类号: G01N21/645 , B01L3/502761 , B01L2300/0654 , B01L2300/0681 , G01N2021/6463
摘要: Provided herein are new methods and apparatus for quantitative measurement and analysis of particles, including new apparatus systems to process and detect nanoparticles in suspension. By focusing a laser beam at the center of a reservoir, nanoparticles are concentrated by optical energy, and fluorescent intensity at the focal point of the laser is measured to quantify particle concentration in the reservoir. The techniques may be applied to the analysis of suspensions of nanoparticles, including natural particles (e.g., microorganisms including whole viruses, bacteria, animal cells, and proteins) and synthetic particles (e.g., colloidal latexes, paints, pigments, and metallic or semiconductor nanoparticles) for medical and industrial applications, among others.
摘要翻译: 本文提供了用于定量测量和分析颗粒的新方法和装置,包括用于处理和检测悬浮液中的纳米颗粒的新装置系统。 通过将激光束聚焦在储存器的中心,纳米颗粒被光能集中,并且测量激光焦点处的荧光强度以量化储层中的颗粒浓度。 这些技术可以应用于纳米颗粒悬浮液的分析,包括天然颗粒(例如,包括全病毒,细菌,动物细胞和蛋白质的微生物)和合成颗粒(例如胶体胶乳,油漆,颜料和金属或半导体纳米颗粒 )用于医疗和工业应用等。
-
公开(公告)号:US09976973B2
公开(公告)日:2018-05-22
申请号:US13884580
申请日:2011-11-09
申请人: Nicholas Watkins , Rashid Bashir , William Rodriguez , Xuanhong Cheng , Mehmet Toner , Grace Chen , Aaron Oppenheimer
发明人: Nicholas Watkins , Rashid Bashir , William Rodriguez , Xuanhong Cheng , Mehmet Toner , Grace Chen , Aaron Oppenheimer
CPC分类号: G01N27/02 , B01L2200/0652 , B01L2300/0877 , C12M41/36 , G01N15/12 , G01N15/1245 , G01N33/56972 , G01N2015/1006 , G01N2015/1486
摘要: This disclosure relates to methods and devices to count particles of interest, such as cells. The methods include obtaining a fluid sample that may contain particles of interest; counting all types of particles in a portion of the sample using a first electrical differential counter to generate a first total; removing any particles of interest from the portion of the fluid sample; counting any particles remaining in the portion of the fluid sample using a second electrical differential counter after the particles of interest are removed to generate a second total; and calculating a number of particles of interest originally in the fluid sample by subtracting the second total from the first total, wherein the difference is the number of particles of interest in the sample. These methods and related devices can be used, for example, to produce a robust, inexpensive diagnostic kit for CD4+ T cell counting in whole blood samples.
-
公开(公告)号:US08537356B2
公开(公告)日:2013-09-17
申请号:US12920262
申请日:2009-03-02
申请人: H. Daniel Ou-Yang , Xuanhong Cheng
发明人: H. Daniel Ou-Yang , Xuanhong Cheng
IPC分类号: G01N21/00
CPC分类号: G01N21/645 , B01L3/502761 , B01L2300/0654 , B01L2300/0681 , G01N2021/6463
摘要: Provided herein are new methods and apparatus for quantitative measurement and analysis of particles, including new apparatus systems to process and detect nanoparticles in suspension. By focusing a laser beam at the center of a reservoir, nanoparticles are concentrated by optical energy, and fluorescent intensity at the focal point of the laser is measured to quantify particle concentration in the reservoir. The techniques may be applied to the analysis of suspensions of nanoparticles, including natural particles (e.g., microorganisms including whole viruses, bacteria, animal cells, and proteins) and synthetic particles (e.g., colloidal latexes, paints, pigments, and metallic or semiconductor nanoparticles) for medical and industrial applications, among others.
摘要翻译: 本文提供了用于定量测量和分析颗粒的新方法和装置,包括用于处理和检测悬浮液中的纳米颗粒的新装置系统。 通过将激光束聚焦在储存器的中心,纳米颗粒被光能集中,并且测量激光焦点处的荧光强度以量化储层中的颗粒浓度。 这些技术可以应用于纳米颗粒悬浮液的分析,包括天然颗粒(例如,包括全病毒,细菌,动物细胞和蛋白质的微生物)和合成颗粒(例如胶体胶乳,油漆,颜料和金属或半导体纳米颗粒 )用于医疗和工业应用等。
-
公开(公告)号:US20090298067A1
公开(公告)日:2009-12-03
申请号:US12293046
申请日:2007-03-15
CPC分类号: G01N33/56972 , G01N33/56966 , Y10S436/824
摘要: The invention features methods, devices, and kits for the isolation of analytes (e.g., a cell). A sample containing a desired analyte is introduced into a microfluidic device containing moieties that bind the desired analyte. A shear stress is applied that is great enough to prevent binding of undesired analytes and low enough to allow binding of the analyte of interest. Once bound, the desired analytes can be analyzed (e.g., counted). The invention also features methods for determining a shear stress for isolating a desired analyte.
摘要翻译: 本发明的特征在于用于分离分析物(例如,细胞)的方法,装置和试剂盒。 将含有所需分析物的样品引入含有结合所需分析物的部分的微流体装置中。 施加的剪切应力足够大以防止不需要的分析物的结合,并且足够低以允许感兴趣的分析物的结合。 一旦结合,可以分析所需的分析物(例如,计数)。 本发明还具有确定用于分离所需分析物的剪切应力的方法。
-
公开(公告)号:US08852875B2
公开(公告)日:2014-10-07
申请号:US12596768
申请日:2008-04-21
申请人: Mehmet Toner , Rashid Bashir , Xuanhong Cheng , Utkan Demirci , Daniel Irimia , William R. Rodriguez , Liju Yang , Lee Zamir , Yi-Shao Liu
发明人: Mehmet Toner , Rashid Bashir , Xuanhong Cheng , Utkan Demirci , Daniel Irimia , William R. Rodriguez , Liju Yang , Lee Zamir , Yi-Shao Liu
IPC分类号: G01N33/567 , G01N33/50 , G01N33/84 , G01N15/10 , G01N15/14
CPC分类号: G01N33/5005 , G01N15/1031 , G01N15/1056 , G01N15/1484 , G01N33/84 , G01N2015/1006 , G01N2015/1062 , Y02A50/58
摘要: The invention features methods of quantifying cells in a sample by lysing the cells followed by the measurement of at least one intracellular component. Methods of the invention are especially useful for quantifying small numbers of cells, e.g., over a large surface area or volume compared to the cell size. In a preferred embodiment, methods of the invention are performed using a microfluidic device.
摘要翻译: 本发明的特征在于通过裂解细胞然后测量至少一种细胞内成分来定量样品中细胞的方法。 本发明的方法对于量化小数量的细胞特别有用,例如,与细胞大小相比,在大的表面积或体积上。 在优选的实施方案中,使用微流体装置进行本发明的方法。
-
公开(公告)号:US20130295588A1
公开(公告)日:2013-11-07
申请号:US13884580
申请日:2011-11-09
申请人: Nicholas Watkins , Rashid Bashir , William Rodriguez , Xuanhong Cheng , Mehmet Toner , Grace Chen , Aaron Oppenheimer
发明人: Nicholas Watkins , Rashid Bashir , William Rodriguez , Xuanhong Cheng , Mehmet Toner , Grace Chen , Aaron Oppenheimer
IPC分类号: G01N27/02
CPC分类号: G01N27/02 , B01L2200/0652 , B01L2300/0877 , C12M41/36 , G01N15/12 , G01N15/1245 , G01N33/56972 , G01N2015/1006 , G01N2015/1486
摘要: This disclosure relates to methods and devices to count particles of interest, such as cells. The methods include obtaining a fluid sample that may contain particles of interest; counting all types of particles in a portion of the sample using a first electrical differential counter to generate a first total; removing any particles of interest from the portion of the fluid sample; counting any particles remaining in the portion of the fluid sample using a second electrical differential counter after the particles of interest are removed to generate a second total; and calculating a number of particles of interest originally in the fluid sample by subtracting the second total from the first total, wherein the difference is the number of particles of interest in the sample. These methods and related devices can be used, for example, to produce a robust, inexpensive diagnostic kit for CD4+ T cell counting in whole blood samples.
摘要翻译: 本公开涉及计算感兴趣的颗粒例如细胞的方法和装置。 所述方法包括获得可含有感兴趣的颗粒的流体样品; 使用第一电差分计数器对样品的一部分中的所有类型的颗粒计数以产生第一总数; 从流体样品的一部分去除任何感兴趣的颗粒; 在除去感兴趣的颗粒之后,使用第二电差速器计数器在流体样品的部分中剩余的任何颗粒计数以产生第二总数; 以及通过从第一个总计中减去第二个总计来计算最初在流体样品中的感兴趣的颗粒数,其中差值是样品中的感兴趣的颗粒数。 这些方法和相关装置可用于例如在全血样品中产生用于CD4 + T细胞计数的稳健且廉价的诊断试剂盒。
-
公开(公告)号:US20120003687A1
公开(公告)日:2012-01-05
申请号:US12596768
申请日:2008-04-21
申请人: Mehmet Toner , Rashid Bashir , Xuanhong Cheng , Utkan Demirci , Daniel Irimia , William R. Rodriguez , Liju Yang , Lee Zamir , Yi-Shao Liu
发明人: Mehmet Toner , Rashid Bashir , Xuanhong Cheng , Utkan Demirci , Daniel Irimia , William R. Rodriguez , Liju Yang , Lee Zamir , Yi-Shao Liu
IPC分类号: C12Q1/06
CPC分类号: G01N33/5005 , G01N15/1031 , G01N15/1056 , G01N15/1484 , G01N33/84 , G01N2015/1006 , G01N2015/1062 , Y02A50/58
摘要: The invention features methods of quantifying cells in a sample by lysing the cells followed by the measurement of at least one intracellular component. Methods of the invention are especially useful for quantifying small numbers of cells, e.g., over a large surface area or volume compared to the cell size. In a preferred embodiment, methods of the invention are performed using a microfluidic device.
摘要翻译: 本发明的特征在于通过裂解细胞然后测量至少一种细胞内成分来定量样品中细胞的方法。 本发明的方法对于量化小数量的细胞特别有用,例如,与细胞大小相比,在大的表面积或体积上。 在优选的实施方案中,使用微流体装置进行本发明的方法。
-
公开(公告)号:US08911957B2
公开(公告)日:2014-12-16
申请号:US12293046
申请日:2007-03-15
IPC分类号: G01N33/543 , G01N33/53 , G01N33/569
CPC分类号: G01N33/56972 , G01N33/56966 , Y10S436/824
摘要: The invention features methods, devices, and kits for the isolation of analytes (e.g., a cell). A sample containing a desired analyte is introduced into a microfluidic device containing moieties that bind the desired analyte. A shear stress is applied that is great enough to prevent binding of undesired analytes and low enough to allow binding of the analyte of interest. Once bound, the desired analytes can be analyzed (e.g., counted). The invention also features methods for determining a shear stress for isolating a desired analyte.
摘要翻译: 本发明的特征在于用于分离分析物(例如,细胞)的方法,装置和试剂盒。 将含有所需分析物的样品引入含有结合所需分析物的部分的微流体装置中。 施加的剪切应力足够大以防止不需要的分析物的结合,并且足够低以允许感兴趣的分析物的结合。 一旦结合,可以分析所需的分析物(例如,计数)。 本发明还具有确定用于分离所需分析物的剪切应力的方法。
-
公开(公告)号:US08080593B2
公开(公告)日:2011-12-20
申请号:US11947770
申请日:2007-11-29
申请人: Mark Humayun , Buddy R. Ratner , James Weiland , Murat Tunc , Xuanhong Cheng
发明人: Mark Humayun , Buddy R. Ratner , James Weiland , Murat Tunc , Xuanhong Cheng
CPC分类号: A61L24/001 , A61B17/00491 , A61F9/007 , A61L24/06 , C08L33/26
摘要: The present invention relates to thermoresponsive adhesives. The invention further relates to methods for the reversible attachment of retinal implants, other implants, and drug delivery devices.
摘要翻译: 本发明涉及热敏粘合剂。 本发明还涉及视网膜植入物,其它植入物和药物递送装置的可逆附着的方法。
-
-
-
-
-
-
-
-
-