University of Pennsylvania

'Onion' vesicles for drug delivery developed

One of the defining features of cells is their membranes. Each cell's repository of DNA and protein-making machinery must be kept stable and secure from invaders and toxins. Scientists have attempted to replicate ...

dateJun 10, 2014 in Biochemistry
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Cosmologists weigh cosmic filaments and voids

(Phys.org) —Cosmologists have established that much of the stuff of the universe is made of dark matter, a mysterious, invisible substance that can't be directly detected but which exerts a gravitational ...

dateApr 17, 2014 in Astronomy
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