A new synthetical method for nanomaterials was developed, and the semicondu
ctor nanocrystalline CdS was fabricated through controlling of the living b
iomembrane in bean sprouts. The results indicated that approximately spheri
cal CdS particles about 5. 1 nm, which has a cubic zinc-blende structure wi
th a cell constant a = 0. 581 8 nm, could be formed after the bean sprouts
were successively soaked in 0. 1 mol . L-1 Na2S and 0. 1 mol . L-1 CdCl2 fo
r 24 h. In addition, the tentative research for the reaction mechanism has
been carried out.