[Yu, Y.] Huazhong Normal Univ, Inst Nanosci & Nanotechnol, Wuhan 430079, Peoples R China.
[Yu, Y.; Rybczynski, J.; Ren, Z. F.; Lan, Y. C.; Paudel, T.; Wang, D. Z.] Boston Coll, Dept Phys, Chestnut Hill, MA 02467 USA.
[Cimeno, A.; Cai, D.; Chiles, T. C.] Boston Coll, Dept Biol, Chestnut Hill, MA 02467 USA.
[Wagner, D. J.] USN, Hlth Res Ctr, Detachment Environm Hlth Effects, Wright Patterson AFB, OH 45433 USA.
[Qiu, M. Q.] Huazhong Normal Univ, Coll Chem, Wuhan 430079, Peoples R China.