US 7,332,339 B2
	Transferring materials into cells using porous silicon
Leigh T Canham, Malvern (United Kingdom)
Assigned to PSIMedica Limited, Malvern, Worcestershire (United Kingdom)
Filed on May 27, 2004, as Appl. No. 10/854,255.
Application 10/854255 is a division of application No. 09/743447, granted, now 6,770,480, previously published as PCT/GB99/02383, filed on Jul. 22, 1999.
Claims priority of application No. 9815819.9 (GB), filed on Jul. 22, 1998.
Prior Publication US 2004/0220535 A1, Nov. 04, 2004
This patent is subject to a terminal disclaimer.
Int. Cl. C12N 15/87 (2006.01)

U.S. Cl. 435—459  [435/470; 435/285.3]

3 Claims

1. A method of transferring a substance into a cell comprising using a sub-micron silicon particle comprising silicon for conveying the substance into the cell, the particle comprising a porous surface layer.