Introduction
In these times of high awareness of potential threat, there is a greater need for precautionary measures. Explosives, chemical warfare agents, and toxic industrial chemicals present the most immediate threats towards soft targets such as stadiums, malls, theme parks, airports, subways, train stations, and high-rise buildings.
The problem
Security processes generally involve portal systems that individuals walk through. The systems restrict movement, can be large and costly, and are labor-intensive to operate. Though mostly effective, a more widespread security system sweeping waiting rooms, bathrooms, and shops could be employed to ensure optimal effectiveness.
Most hazardous items are volatile such as explosives, toxic industrial chemicals, and chemical warfare agents. Small, sensitive, and rapid sensors could be employed in multiple locations throughout soft targets to ensure safety. These detectors could work in conjunction with camera systems to better survey areas.
The solution
The detection of volatile airborne compounds can most easily be achieved by vertebrate olfactory systems. The systems are most highly...