Each paper embargoed for release until date and time of presentation, unless noted otherwise

SAN DIEGO - More than 7,700 cutting-edge research findings will be presented at the 221st national meeting of the American Chemical Society, April 1-5, in San Diego. Some 15,000 scientists are expected to attend the meeting, which will be held at the San Diego Convention Center and nearby hotels. Highlights include:

• An artificial enzyme that could lead to the prevention of skin cancer.
• Reducing chemotherapy's side effects and avoiding multidrug resistance.
• A new flu vaccine for people who are allergic to eggs.
• Newly discovered lead-contaminated factory sites across the country.
• Risks and benefits of biotech crops.

News releases and advisories will be posted on the World Wide Web, on an embargoed basis, at www.eurekalert.org under the "ACS 221st national meeting" button. They will also be posted at www.acs.org/news when the embargoes are lifted.

The meeting is open to accredited news media. The pressroom will be in room 18, mezzanine level, of the San Diego Convention Center, 111 West Harbor Drive. It opens at noon, Saturday, March 31, and closes that day at 6:00 p.m., Pacific Time. The pressroom hours of operation during the meeting, April 1-5, are 6:00 a.m. until 6:00 p.m., Pacific Time.

News media must register at the pressroom to receive badges, which are needed for admittance to events. Press kits will include a complete set of meeting abstracts, news releases on selected research papers, and a schedule of news briefings. For more information, contact Charmayne Marsh at the telephone numbers listed at the top of this page.

Sunday, April 1

• Green chemistry subject of major symposium - Designer liquids that can replace hazardous organic solvents are poised to revolution
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