http://www.physorg.com/ en-us Physorg.com internet news portal provides the latest news on science including: Physics, Nanotechnology, Life Sciences, Space Science, Earth Science, Environment, Health and Medicine. (PhysOrg.com) -- The basis of all life forms are vesicles: membrane-enclosed, liquid-filled `bubbles` made of lipids, proteins, and carbohydrates. Cells, which are separated from the surrounding medium by their cell membrane, are really just big vesicles. Small vesicles play a critical role in the intracellular transport of biomolecules. http://www.physorg.com/news157013196.html Chemistry Mon, 23 Mar 2009 07:47:07 EST news157013196 The transportation of antibodies from a mother to her newborn child is vital for the development of that child's nascent immune system. Those antibodies, donated by transfer across the placenta before birth or via breast milk after birth, help shape a baby's response to foreign pathogens and may influence the later occurrence of autoimmune diseases. Images from biologists at the California Institute of Technology (Caltech) have revealed for the first time the complicated process by which these antibodies are shuttled from mother's milk, through her baby's gut, and into the bloodstream, and offer new insight into the mammalian immune system. http://www.physorg.com/news143089729.html Biology Mon, 13 Oct 2008 04:08:49 EST news143089729