Effect of small polyanions on retroviruses

A retrovirus is a virus that inserts a copy of its genome into the DNA of a host cell that it invades, thus changing that cell's genome. Once inside the host cell's cytoplasm, the virus uses its reverse transcriptase enzyme ...

Nobel in chemistry honors 'greener' way to build molecules

Two scientists won the Nobel Prize in chemistry Wednesday for finding an ingenious and environmentally cleaner way to build molecules—an approach now used to make a variety of compounds, including medicines and pesticides.

Researchers translate insect defense chemicals into eerie sounds

Sawfly larvae protect themselves by secreting cocktails of unpleasant, volatile chemicals intended to repel predators, particularly ants. Researchers can assess the effectiveness of these defenses by staging meetups, so-called ...

The pathway for producing ethylene

New research lays out the chemical steps used by a naturally occurring enzyme to convert a common chemical compound into ethylene—a plant hormone important for fruit ripening and an industrial chemical used in the production ...

Compounds that give coffee its distinctive 'mouthfeel'

Coffee drinkers intuitively recognize the pleasure of swallowing a smooth, rich brew versus a watery one. Aside from added cream or sugar, the coffee itself contributes to this sensation—referred to as body or mouthfeel—but ...

New method for the molecular functionalization of surfaces

One vision that is currently driving material scientists is to combine organic molecules (and their diverse functionalities) with the technological possibilities offered by extremely sophisticated semiconductor electronics. ...

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