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公开(公告)号:US20140158600A1
公开(公告)日:2014-06-12
申请号:US14182804
申请日:2014-02-18
Applicant: Drexel University
Inventor: Benjamin B. Yellen , Gennady Friedman
IPC: B03C1/02
CPC classification number: B03C1/02 , B01F13/0809 , B03C1/288 , B03C1/30 , B03C1/32 , B03C2201/18
Abstract: One aspect of the invention provides a device for sorting non-magnetic particles. The device includes: (a) a fluid holding chamber comprising an inner and outer surface; (b) a fluid in contact with the inner surface of the fluid holding chamber, said fluid containing a dispersion of magnetic particles and at least two sets of non-magnetic particles; and (c) at least two sources of magnetic fields positioned in close proximity to, or inside of, the fluid holding chamber. The at least two sources of magnetic fields produce a changeable pattern of magnetic field minima and maxima regions thereby causing said non-magnetic particles in the fluid to be transported towards the magnetic field minima regions by magnetic force. At least one of said sources of magnetic fields comprises an array of magnetizable features on a micrometer or nanometer length scale.
Abstract translation: 本发明的一个方面提供一种用于分选非磁性颗粒的装置。 该装置包括:(a)流体保持室,其包括内表面和外表面; (b)与流体保持室的内表面接触的流体,所述流体包含磁性颗粒和至少两组非磁性颗粒的分散体; 和(c)至少两个定位在流体保持室附近或内部的磁场源。 所述至少两个磁场源产生磁场最小值和最大值区域的可变图案,从而使流体中的所述非磁性颗粒通过磁力被传送到磁场最小区域。 所述磁场源中的至少一个包括千分尺或纳米长度刻度上的可磁化特征阵列。
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公开(公告)号:US08678640B2
公开(公告)日:2014-03-25
申请号:US13755991
申请日:2013-01-31
Applicant: Drexel University
Inventor: Benjamin B. Yellen , Gennady Friedman
IPC: B01F13/08
CPC classification number: B03C1/02 , B01F13/0809 , B03C1/288 , B03C1/30 , B03C1/32 , B03C2201/18
Abstract: Device and methods for use of these devices to manipulate substantially non-magnetic particles dispersed inside a magnetic fluid by employing a changeable pattern of local magnetic field maxima and minima are provided.
Abstract translation: 提供了使用这些装置通过采用局部磁场最大值和最小值的可变图案来操纵分散在磁性流体内部的基本上非磁性颗粒的装置和方法。
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公开(公告)号:US09415398B2
公开(公告)日:2016-08-16
申请号:US14182804
申请日:2014-02-18
Applicant: Drexel University
Inventor: Benjamin B. Yellen , Gennady Friedman
CPC classification number: B03C1/02 , B01F13/0809 , B03C1/288 , B03C1/30 , B03C1/32 , B03C2201/18
Abstract: One aspect of the invention provides a device for sorting non-magnetic particles. The device includes: (a) a fluid holding chamber comprising an inner and outer surface; (b) a fluid in contact with the inner surface of the fluid holding chamber, said fluid containing a dispersion of magnetic particles and at least two sets of non-magnetic particles; and (c) at least two sources of magnetic fields positioned in close proximity to, or inside of, the fluid holding chamber. The at least two sources of magnetic fields produce a changeable pattern of magnetic field minima and maxima regions thereby causing said non-magnetic particles in the fluid to be transported towards the magnetic field minima regions by magnetic force. At least one of said sources of magnetic fields comprises an array of magnetizable features on a micrometer or nanometer length scale.
Abstract translation: 本发明的一个方面提供一种用于分选非磁性颗粒的装置。 该装置包括:(a)流体保持室,其包括内表面和外表面; (b)与流体保持室的内表面接触的流体,所述流体包含磁性颗粒和至少两组非磁性颗粒的分散体; 和(c)至少两个定位在流体保持室附近或内部的磁场源。 所述至少两个磁场源产生磁场最小值和最大值区域的可变图案,从而使流体中的所述非磁性颗粒通过磁力被传送到磁场最小区域。 所述磁场源中的至少一个包括千分尺或纳米长度刻度上的可磁化特征阵列。
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公开(公告)号:US20130140241A1
公开(公告)日:2013-06-06
申请号:US13755991
申请日:2013-01-31
Applicant: Drexel University
Inventor: Benjamin B. Yellen , Gennady Friedman
IPC: B03C1/32
CPC classification number: B03C1/02 , B01F13/0809 , B03C1/288 , B03C1/30 , B03C1/32 , B03C2201/18
Abstract: Device and methods for use of these devices to manipulate substantially non-magnetic particles dispersed inside a magnetic fluid by employing a changeable pattern of local magnetic field maxima and minima are provided.
Abstract translation: 提供了使用这些装置通过采用局部磁场最大值和最小值的可变图案来操纵分散在磁性流体内部的基本上非磁性颗粒的装置和方法。
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