基金supported by the National Science Foundation,USA(CHE1111000)National Institute of Health,USA(GM081655)+3 种基金Army Research Office,USA(W911NF-11-1-0251)Defense Threat Reduction Agency,USA(HDTRA1-11-1-0019)Office of Naval Research,USA(N00014-08-1-1211)Semiconductor Research Corporation,USA(P10419)