TY - JOUR
T1 - Endowing hexaphenylsilole with chemical sensory and biological probing properties by attaching amino pendants to the silolyl core
AU - Dong, Yongqiang
AU - Lam, Jacky W.Y.
AU - Qin, Anjun
AU - Li, Zhen
AU - Liu, Jianzhao
AU - Sun, Jingzhi
AU - Dong, Yuping
AU - Tang, Ben Zhong
PY - 2007/9/26
Y1 - 2007/9/26
N2 - Hexaphenylsilole (HPS) was functionalized by two amino (A2) groups, giving a new silole derivative of 1,1-bis[4-(diethylaminomethyl)phenyl]-2,3,4,5-tetraphenylsilole (A2HPS) that is capable of detecting explosives, biomacromolecules and pH changes. A2HPS is nonemissive when molecularly dissolved but becomes highly luminescent when aggregated. The emission of its nanoaggregates is quenched by picric acid with a high Ksv value (∼1.7 × 105 M-1). A2HPS can dissolve in acidic aqueous media, due to the transformation of its amino groups to ammonium-salts. The resultant nonemissive aqueous solution is turned on by increasing its pH value or adding protein or DNA.
AB - Hexaphenylsilole (HPS) was functionalized by two amino (A2) groups, giving a new silole derivative of 1,1-bis[4-(diethylaminomethyl)phenyl]-2,3,4,5-tetraphenylsilole (A2HPS) that is capable of detecting explosives, biomacromolecules and pH changes. A2HPS is nonemissive when molecularly dissolved but becomes highly luminescent when aggregated. The emission of its nanoaggregates is quenched by picric acid with a high Ksv value (∼1.7 × 105 M-1). A2HPS can dissolve in acidic aqueous media, due to the transformation of its amino groups to ammonium-salts. The resultant nonemissive aqueous solution is turned on by increasing its pH value or adding protein or DNA.
UR - http://www.scopus.com/inward/record.url?scp=34548476950&partnerID=8YFLogxK
U2 - 10.1016/j.cplett.2007.08.030
DO - 10.1016/j.cplett.2007.08.030
M3 - Article
AN - SCOPUS:34548476950
SN - 0009-2614
VL - 446
SP - 124
EP - 127
JO - Chemical Physics Letters
JF - Chemical Physics Letters
IS - 1-3
ER -