Cell-support matrix having narrowly defined uniformly vertically and non-randomly organized porosity and pore density and a method for preparation thereof
Robert Lane Smith, Palo Alto, CA (US); Laurence J. B. Tarrant, Northhampton, MA (US); Akihiko Kusanagi, Brookline, MA (US); and Hans P. I. Claesson, Wayland, MA (US)
Assigned to Ocugen, Inc., Malvern, PA (US)
Filed by Ocugen, Inc., Malvern, PA (US)
Filed on Jan. 22, 2021, as Appl. No. 17/156,062.
Application 17/156,062 is a continuation of application No. 16/706,372, filed on Dec. 6, 2019, granted, now 10,900,017.
Application 16/706,372 is a continuation of application No. 15/641,773, filed on Jul. 5, 2017, abandoned.
Application 15/641,773 is a continuation of application No. 14/577,610, filed on Dec. 19, 2014, granted, now 9,701,940, issued on Jul. 11, 2017.
Application 14/577,610 is a continuation of application No. 11/523,833, filed on Sep. 19, 2006, granted, now 8,921,109, issued on Dec. 30, 2014.
Claims priority of provisional application 60/718,714, filed on Sep. 19, 2005.
Prior Publication US 2021/0246418 A1, Aug. 12, 2021
1. A collagen-based cell-support matrix having narrowly defined and uniformly vertically and non-randomly organized porosity and pore density wherein said matrix is prepared from a collagen-based biocompatible material, wherein said porosity is determined by pore size and wherein said pore size is substantially homogeneous in diameter.