Abstract: An apertured cell carrier defines first and second outer surfaces and comprises an ordered array of holes therethrough, the holes being in identifiable positions on the carrier and sized to contain individual living cells, the cross sections of the holes at the first outer surface and at a level spaced from the first outer surface, as well as the height between the first outer surface and the level of the second cross section, being defined. Preferably, the ordered array comprises at least one sub-group of uniformly shaped holes sized to accommodate individual living cells of the same size. The carrier may contain entire living cells or substantially entire living cells, held within individual holes. The carrier may be supported on a holder, in which case the carrier is preferably constructed to include a device for aligning it with a complementary device on the holder, whereby the individual addresses of holes in the carrier are identifiable by a set of x and y coordinates.

Abstract: An apertured cell carrier has a configuration defining first and second outer surfaces and comprising an ordered array of holes therethrough, the positions on the carrier of the holes being identifiable and the holes being sized to have the ability to contain individual living cells having a generally spherical shape therewithin, one cell only per hole, in that the holes have (i) a first cross section at the first outer surface of the carrier of such dimensions that living cells can pass through the first cross section without suffering substantial damage, (ii) a second cross section at a level intermediate between said first and second outer surfaces and of such dimensions that said living cells cannot pass through the second cross section, and (iii) a height between the first outer surface and the level of the second cross section such that either such an entire living cell or substantially such an entire living cell is containable within the hole.

Abstract: A method for producing cells having at least one common optical property, electromagnetic property, or biological property. The cells derived from selected living cells located at particular hole positions on an apertured carrier. The selected living cells are separated from all other cells on the carrier either by removing the selected cells from the carrier, or by removing undesired living cells from the carrier, or by killing undesired living cells on the carrier. The selected cells are growing either on the carrier or after having been removed therefrom.

Abstract: An ordinarily delicate microsieve is provided with greater resistance to mechanical distortion by being formed integrally with a rigid frame or by having its thickness built up to an extent where it is significantly more capable of withstanding flex.

Abstract: A method for placing individual living cells at identifiable locations is provided comprising the steps of:(a) providing a carrier having a plurality of apertures, the apertures being arranged in an ordered array and being sized to hold individual cells;(b) applying a fluid containing living cells to the carrier; and(c) applying a force to the cells to move the cells into the apertures.