Example 2
A 2 cm×3 cm sample of sheet acellular dermal matrix (ADM) derived from porcine dermis and having a wet thickness of approximately 1.3 mm was vacuum dried at 35° C. at less than 100 millitorr absolute pressure for 12-24 hours, yielding a dried, semi-transparent ADM having a thickness of approximately 0.7 mm. The dried, semi-transparent ADM was then transferred to a UVP model CL-1000 ultraviolet crosslinker using UVA lamps emitting a UV wavelength in the range of from 350-375 nm (target 365 nm) and irradiated with 370 nm wavelength UV-A light at an intensity of 5.5 mW/cm2 for 4 hours. The ADM was then rehydrated overnight in Dulbecco's phosphate-buffered saline (PBS buffer) with no Ca or Mg salts (standard nominal concentration of 2.67 mM KCl, 1.47 mM KH2PO4, 138 mM NaCl, and 8.06 mM Na2HPO4.7H2O).
A 2 cm×3 cm sample of “wet” (i.e., not vacuum dried overnight) sheet acellular dermal matrix (ADM) derived from porcine dermis and having a wet thickness of approximately 1.3 mm was placed in a UVP model CL-1000 ultraviolet crosslinker using UVA lamps emitting a UV wavelength in the range of from 350-375 nm (target 365 nm) and irradiated with 370 nm wavelength UV-A light at an intensity of 5.5 mW/cm2 for 4 hours.