Objective To study the numerical abnormality of chromosomes in lung cancer by dual-color fluorescence in situ hybridization(FISH).

They were neither large nor small, while their color was a nondescript brown; but in them smouldered a fire, or, rather, lurked an expression dual and strangely contradictory.

This study develops a facile and accurate approach towards detection of melamine utilizing gold nanoparticles and a dual color and precipitation test.