History of The Discovery
Seeds such as soybeans containing very high levels of protein can undergo desiccation, yet survive and revive after water absorption. A. Carl Leopold, began studying this capability at the Boyce Thompson Institute for Plant Research at Cornell University in the mid 1980s. He found soybeans and corn to have a range of soluble carbohydrates protecting the seed's cell viability. Patents were awarded to him in the early 1990s on techniques for protecting "biological membranes" and proteins in the dry state. Using the knowledge gleaned from studying the preservation of proteins in dry soybeans, Carl developed a method to preserve peptide hormones like insulin in the glassy state so that they can be pulverized into a powder and inhaled by diabetics as an alternative to self-injection
What Leopold, who has died, could not have foreseen is that his research on soybeans would lead to techniques that allowed insulin to be dried and later processed into an inhalable insulin, named Exubera by Pfizer.
Read more about this topic: Inhalable Insulin
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