Patent ID: 7892724

Claim:
A method for storing a biological sample comprising mammalian tissue, mammalian organ, population of mammalian cells, a mammalian tissue engineered construct or a mammalian tissue engineered device comprising: a) contacting the biological sample with a composition comprising: (i) a biological buffer, medium, tissue storage solution or organ transport solution (ii) a biomembrane sealing agent comprising a mixture of two or more polyethylene glycols, the first polyethylene glycol having an average molecular weight of about 600 Da, and at least a second polyethylene glycol having an average molecular weight of about 3350 Da; (iii) at least a first chelator; (iv) at least a first antioxidant; and b) maintaining said biological sample from between about 0° C. and about 25° C., wherein said biological sample remains substantially viable in said composition for a period of at least 14 days.