Towards an electronic dog nose: surface plasmon resonance immunosensor for security and safety.

Takeshi Onodera,Kiyoshi Toko

doi:10.3390/s140916586

Abstract

This review describes an “electronic dog nose” based on a surface plasmon resonance (SPR) sensor and an antigen–antibody interaction for security and safety. We have concentrated on developing appropriate sensor surfaces for the SPR sensor for practical use. The review covers different surface fabrications, which all include variations of a self-assembled monolayer containing oligo(ethylene glycol), dendrimer, and hydrophilic polymer. We have carried out detection of explosives using the sensor surfaces. For the SPR sensor to detect explosives, the vapor or particles of the target substances have to be dissolved in a liquid. Therefore, we also review the development of sampling processes for explosives, and a protocol for the measurement of explosives on the SPR sensor in the field. Additionally, sensing elements, which have the potential to be applied for the electronic dog nose, are described.

Highlights

Working dogs have been deployed for use in various places, such as the police force, airport customs, disaster-affected areas, snowy mountains, and the home
We describe an electronic dog nose based on a surface plasmon resonance (SPR) sensor, an antigen–antibody interaction and a sampling method for hazardous substances
We developed a method of detecting 1,3,5-trinitroperhydro-1,3,5-triazine (research department explosive (RDX)) [16]

Summary

Introduction

Working dogs have been deployed for use in various places, such as the police force, airport customs, disaster-affected areas, snowy mountains, and the home. Dogs can find a given target using their. Sensors 2014, 14 excellent sense of smell. A dog’s sensitivity to odor has been expressed well in a quote from Horowitz [1], who states that “As we see the world, the dog smells it”. Since the terrorist attacks in the USA on 11 September 2001, concern about terrorist attacks has increased in Japan. Dogs trained to detect explosives were deployed at Narita airport in Japan in preparation for holding the 2002 FIFA World Cup. A dog’s sensitivity depends on its physical condition, and a dog cannot be employed to search for explosives for a prolonged time [2].

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Conclusion