biomed/biology-news.asp <a href="http://feeds.bio-medicine.org/latest-biology-newsDate:1/14/2013">http://feeds.bio-medicine.org/latest-biology-newsDate:1/14/2013</a> xopolymer particles (TEP), a gel-like substance formed by the spontaneous aggregation of sticky chains of organic molecules that are secreted by algae, bacteria, and other organisms.