I cannot create a summary of the requested article because the search results provided do not contain the content of the article titled "Scientists just made living blood vessels on a chip that act like real ones". The search results only contain fragments from other sources (vaccination article and 2007 Quark journal) that are not relevant to your request for an abstract of the article on blood vessels on a chip by Texas A&M researchers. In order to create an accurate and factual summary as per your requirements, I need the full text of the original article.