Greg Geissman, formerly public relations manager at Invitrogen, has been named director of media relations at public relations firm Noonan Russo.
In his new role, he is responsible for directing the media strategy for the agency across all clients.
Archemix has appointed James McArdle to the post of vice president of chemistry, manufacturing, and controls.
McArdle was most recently at Isis Pharmaceuticals, where he was vice president of quality assurance. He also worked at SmithKline Beecham Pharmaceuticals (now GlaxoSmithKline) for 16 years.