发明名称 |
Apparatus, device and method for generating magnetic field gradient |
摘要 |
A monolithic or dual monolithic magnetic device or apparatus having an array of formations such as protruding or raised nubs wherein adjacent nubs have the same or opposite polarity to produce a high magnetic field gradient in the vicinity of the nubs is described. In lieu of nubs, the use of a magnetic device with thru-holes, blind holes, filled holes, or iron flux concentrators is also detailed, wherein all embodiments result in regions of high magnetic field gradient. Apparatus and methods for spot-poling a magnet array are also illustrated. An application of an array of MEMS actuators using the magnets of the present invention to produce high field gradient at precise locations is described. A further application of a biochemical separation unit containing a magnetic array and micro-fluidic channels for separating out magnetic particles tagged with bio-specific molecules for sensing the presence of a disease or specified chemicals is also described.
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申请公布号 |
US2003234711(A1) |
申请公布日期 |
2003.12.25 |
申请号 |
US20020180013 |
申请日期 |
2002.06.25 |
申请人 |
BERNSTEIN JONATHAN JAY;TAYLOR WILLIAM PATRICK;BRAZZLE JOHN DAVID;CORCORAN CHRISTOPHER JOHN;LEE JAMES KELLY |
发明人 |
BERNSTEIN JONATHAN JAY;TAYLOR WILLIAM PATRICK;BRAZZLE JOHN DAVID;CORCORAN CHRISTOPHER JOHN;LEE JAMES KELLY |
分类号 |
G02B26/08;(IPC1-7):G02B26/08 |
主分类号 |
G02B26/08 |
代理机构 |
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地址 |
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