Researchers from the University at Buffalo are developing a handheld sensor that can detect the presence of toxins potentially used as agents in biological warfare. The proposed sensor, which will utilize optical-detection and chemical-sensing technologies, could be used in urban, military, industrial and even home environments, says researcher Albert H. Titus, assistant professor of electrical engineering in the UB School of Engineering and Applied Sciences. "Our sensor will have certain advantages over what is currently available," Titus says. "It will be lightweight, portable, relatively inexpensive to manufacture and it can be tailored to detect many types -- or different quantities...