Focused acoustic ejection cell sorting system and method

G - Physics – 01 – N

Patent

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Details

G01N 15/10 (2006.01) C12M 1/26 (2006.01) C12M 3/00 (2006.01) G01N 15/14 (2006.01) G01N 29/02 (2006.01) G01N 30/02 (2006.01)

Patent

CA 2433296

A method is provided for acoustically ejecting from a channel or other container a plurality of fluid droplets, each of which contains one or more particles or other localized volumes. The localized volumes, which can be living cells, are ejected towards sites on a substrate surface, a container, or a channel. An integrated cell sorting and arraying system is also provided that is capable of sorting based upon cellular properties by the selective ejection of cells from a carrier fluid. The cells can be ejected with adjustable velocity and trajectory. The ejected cells can be directed to form an array, wherein each site of the array can contain a single cell. Additionally provided is a method of forming arrays of single live cells more efficiently, rapidly, flexibly, and economically than by other cell array approaches. This method permits efficient, continuous, and simultaneous sorting of cells based upon the quantitative or semiquantitative measurement of cellular properties, and also permits non-binary or severally-branched decision-making. An integrated system, which includes a processor, and methods are also provided for the detection, selection, and ejection of selected particles or circumscribed volumes, such as live cells, from a continuous stream of fluid-suspended particles or other circumscribed volumes flowing in channels.

L'invention porte sur un procédé d'éjection acoustique d'un canal ou d'un récipient de séries de gouttelettes de liquide contenant chacune une ou plusieurs particules ou d'autres volumes localisés. Lesdits volumes qui peuvent être des cellules vivantes sont éjectés vers des sites de la surface d'un substrat, ou vers un récipient, ou vers un canal. L'invention porte également sur un système intégré de tri et de disposition de cellules les triant en fonction de leurs propriétés en les éjectant sélectivement d'un liquide porteur à des vitesses et sur des trajectoires, modulables. Les cellules éjectées peuvent être amenées à former un réseau organisé dont chaque site contient une seule cellule. L'invention porte en outre sur un procédé de formation de réseaux de cellules, isolées plus rapidement, flexiblement et économiquement qu'avec d'autres techniques et permettant de plus un tri efficace, continu, et simultané en fonction de mesures quantitative ou semi-quantitative de leurs propriétés, et autorisant des prises de décisions non binaires et sur plusieurs ramifications. L'invention porte par ailleurs sur un système intégré comportant un processeur, et sur des procédés de détection, sélection, et éjection de particules sélectionnées ou de volumes circonscrits tels que des cellules vivantes contenues dans un flux continu de particules en suspension dans un liquide, ou d'autres volumes circonscrits circulant dans des canaux.

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