Chemical engineering

MIT researchers have developed a microchip that releases chemicals on demand. Left to right: Professor Michael Cima, graduate student John Santini and Professor Robert Langer stand in the Microsystems Technology Laboratory where the chip was fabricated. Mr. Santini holds a silicon wafer containing 21 of the dime-sized chips.

Microchip stores, releases chemicals for many uses

February 3, 1999

Front (left) and back views of a new microchip for the controlled release of chemicals. The dots between the three large bars (cathodes) on the front are the caps (anodes) covering the reservoirs that hold chemicals. An electrical voltage applied between a reservoir cap and a cathode causes a reaction that dissolves the cap, releasing the chemical. The back view shows the larger openings for each ...

MIT microchip releases chemicals on demand

January 27, 1999

Assistant Professor Paula Hammond (right) and graduate student Sarah Clark are developing a new way to create microscopic patterns on surfaces. They recently mechanized the process; Ms. Clark holds part of the equipment to do so.

MIT team develops new way to create microscopic patterns on surfaces

Could become alternative to conventional procedures such as photolithography

December 1, 1998

Team creates new way to pattern surfaces

November 25, 1998

Corrosion fighter works to thwart oxidation at every turn

September 26, 1998

Paper focuses on chemicals' image

July 15, 1998

Chemical engineering honors 20

June 3, 1998

MIT forum June 11-12 to explore chemicals and society

June 1, 1998

Films with tiny particles could have many uses

October 8, 1997

Plastic for growing new nerves

September 10, 1997

Three in chemical engineering are named to professorships

June 11, 1997

Chemical Engineering honors students, faculty and staff

June 4, 1997

Burner technology cuts emissions

May 14, 1997

MIT-NASA Tissue-Engineering Experiment on Mir

October 23, 1996

Implant wafer approved for brain cancer treatment

October 2, 1996

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