INOR 91 |
| Early detection of explosives and the subsequent analysis of suspicious materials is an area of current research interest. Sensitive, selective, portable, user friendly and cost efficient methods are a few of the desired features that new detection devices should strive for. Fluorescent polymers have recently gained popularity because they incorporate many of the aforementioned characteristics. However, there are few guidelines available when it comes to the design of these sensor materials. The rational design and synthesis of a new series of well characterized conjugated poly(silolevinylene)s is described. Detection of a range of high explosive materials including TNT, Tetryl, RDX, HMX, PETN and TNG by a fluorescence quenching mechanism was carried out. Detection limits as low as 600 pg were observed. A thin-film detection process for solid-particulates was developed to obtain good selectivity and rapid on-site evaluation of suspect materials and surfaces. A rational approach to sensor design is discussed. |
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Inorganic Materials: Applications to Environmental and Energy Research
1:30 PM-5:30 PM, Sunday, August 19, 2007 BCEC -- 203, Oral
Division of Inorganic Chemistry |