作者单位:City Univ New York, Brooklyn Coll, Dept Phys, 2900 Bedford Ave, Brooklyn, NY 11210 USA[1]Tokyo Univ Agr & Technol, Dept Biotechnol, Koganei, Tokyo 1848588, Japan[2]City Univ New York, Hunter Coll, Dept Phys, 695 Pk Ave, Park Avenue, NY 10065 USA[3]