Optical sensor arrays for odor recognition

Walt, David R.; Dickinson, Todd A.; White, Joel; Kauer, John S.; Johnson, Stephen R.; Engelhardt, H.; Sutter, Jon M.; Jurs, Peter C.

doi:10.1016/s0956-5663(98)00024-4

Cited by 71 publications

(43 citation statements)

References 9 publications

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“…10 This system uses different temporal changes in fluorescence experienced by a solvatochromic dye immobilized on various polymer matrices upon exposure to vapor pulses. The response is caused by the solvatochromic effects combined with polymer swelling.…”

Section: ·2 Odor Sensormentioning

confidence: 99%

Fiber-Optic Biosensors—Trends and Advances

et al. 2000

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Section: ·2 Odor Sensormentioning

confidence: 99%

Fiber-Optic Biosensors—Trends and Advances

et al. 2000

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“…At the beginning of the eighties Persaud and Dodd [1] created the first electronic system (called electronic nose) for gas recognition that by some means worked in a similar way as the human sense of smell does. Since then, a high number of works have been devoted to the development of electronic noses [2][3][4][5]. Lately, the concept was translated to the human sense of taste and electronic tongues (or taste sensors) were created [6,7].…”

Section: Introductionmentioning

confidence: 99%

“…, Mg 2? , Cl -, SO 4 2-, and HCO 3 -) typically in a not very wide range of concentrations. Thus, for instance, a great effort has been devoted to the preparation and synthesis of receptors for anions [25].…”

Section: Introductionmentioning

confidence: 99%

An electronic tongue for qualitative and quantitative analyses of anions in natural waters

et al. 2009

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Based on the cross-sensitivity shown by certain metal electrodes for some anions in a liquid media, an array of five potentiometric electrodes (Au, Ag, Pt, Cu and Zn) has been used as an electronic tongue device for the recognition and prediction of common anions chloride, sulfate and bicarbonate in mineral waters. The recognition testing studies included measurements of potential (emf) on solutions of pure salts, mixtures of salt and some mineral waters. Predictions were performed by using partial least square. A good discrimination between different water samples by PCA analysis was found as well as an adequate prediction of the concentration of chloride and sulfate.

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“…Arrays have been prepared with various dyes in various polymers on the ends of fiber optic bundles. [6][7][8] Thus, sorbent polymers are important as sensing materials on a number of types of array-based electronic noses, either as neat polymers, as composites containing conducting particles within the polymer film, or as composites incorporating fluorescent dyes. All of these approaches can benefit from rational polymer design and synthesis.…”

Section: Introductionmentioning

confidence: 99%

Polymers for Chemical Sensors Using Hydrosilylation Chemistry

Grate¹,

Kaganove²,

Nelson³

2001

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SummarySorbent and functionalized polymers play a key role in a diverse set of fields, including chemical sensors, separation membranes, solid-phase extraction techniques, and chromatography. Sorbent polymers are critical to a number of sensor array or "electronic nose" systems. The responses of the sensors in the array give rise to patterns that can be used to distinguish one compound from another, provided that a sufficiently diverse set of sensing materials is present in the array. Figure S1 illustrates the concept of several sensors, each with a different sensor coating, giving rise to variable responses to an analyte that appear as a pattern in bar-graph format. Using hydrosilylation as the bond-forming reaction, we have developed a versatile and efficient approach to developing sorbent polymers with diverse interactive properties for sensor applications. Both the chemical and physical properties of these polymers are predictable and tunable by design.

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Optical sensor arrays for odor recognition

Cited by 71 publications

References 9 publications

Fiber-Optic Biosensors—Trends and Advances

Fiber-Optic Biosensors—Trends and Advances

An electronic tongue for qualitative and quantitative analyses of anions in natural waters

Polymers for Chemical Sensors Using Hydrosilylation Chemistry

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