"We didn't expect the level of a single cell to be so stable," she said.
"It was his work that identified genes as being switches for a cell, to be turned on or off during development," Dr. Wieschaus said.
The resulting pictures let the path taken by each nerve cell to be traced through the worm's body.
Labuschagne, who has photographed the walls for posterity, said he would like the cell to be turned into a museum but added: "I don't think it's going to happen, not the way this paint has been damaged.
More than a week before the Brookhaven ceremony, KeySpan announced its own fuel cell program, with one cell to be installed in late summer at the New York Institute of Technology in Westbury.
Bizos called for the cell to be recognised as a national heritage site, adding: "This is where we had consultations with Nelson Mandela, Walter Sisulu, Govan Mbeki and others.
Dr. Baker was the leading champion of efforts to develop a high-temperature fuel cell to be used as a reliable, economical power source for buildings and the electrical grid.
As the bubbles rise to the surface, they carry the copper minerals with them, leaving gangue minerals in the cell to be discarded as tailings.
The amorphous state has a higher electrical resistance than the crystalline state, allowing the value stored in the cell to be determined.
The DNA molecule then integrates into the genome of the host cell to be replicated so that new viral progeny can be made.
Unlike electron microscopy, this does not require a cell to be chemically fixed, stained or embedded in plastic in order to be photographed.
