Colorimetric detection of volatile organic compounds using a colloidal crystal-based chemical sensor for environmental applications

Endo, Tatsuro; Yanagida, Yasuko; Hatsuzawa, Takeshi

doi:10.1016/j.snb.2007.03.003

Cited by 120 publications

(70 citation statements)

References 21 publications

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“…Using polydimethylsiloxane and a 3D colloidal crystal, Endo et al reported a chemical sensing device for VOC that demonstrated colorimetric detection capabilities. Their device allowed the detection of the type and concentration of the VOC, and can be easily observable with the naked eye [151]. Xu et al developed a spherical porphyrin sensor array based on colloidal crystals for volatile organic compounds (VOC) vapor detection.…”

Section: Sensorsmentioning

confidence: 99%

Bottom-Up Assembly and Applications of Photonic Materials

Zheng

Ravaine

2016

Crystals

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Abstract:The assembly of colloidal building-blocks is an efficient, inexpensive and flexible approach for the fabrication of a wide variety of photonic materials with designed shapes and large areas. In this review, the various assembly routes to the fabrication of colloidal crystals and their post-assembly modifications to the production of photonic materials are first described. Then, the emerging applications of the colloidal photonic structures in various fields such as biological and chemical sensing, anti-reflection, photovoltaics, and light extraction are summarized.

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Section: Sensorsmentioning

confidence: 99%

Bottom-Up Assembly and Applications of Photonic Materials

Zheng

Ravaine

2016

Crystals

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“…Because PDMS swells in nonpolar organic solvents, when the resultant colloidal composite was subjected to such substances, its lattice constant and thus the wavelength of the Bragg diffracted light increased, resulting in a colorimetric detection of such volatile organic compounds (VOCs) [14]. Another interesting example of a chemical sensor that also made creative usage of nanotechnology is that of colloidal crystal films formed from composite core/shell nanospheres for selective sensing of multiple vapors at very low concentrations The nanospheres consisted of a core made of a material preferentially responsive to one class of chemicals (e.g., polystyrene), which was then coated with a shell made of a second material which was preferentially responsive to another class of chemicals (sol-gel).…”

Section: Chemistrymentioning

confidence: 99%

“…For instance, fluorescence was employed for optical pH sensing with aminofluorescein as indicator [20], for detecting Li ions using two-color fluorescence [21], or for monitoring of commercial gasolines by quantifying the intensity of the Stokes-shifted fluorescence from some of the heavier polycyclic aromatic hydrocarbons C x H y , (x,y) ! (14,10), that are present in gasolines as minor constituents [22]. A fluorescence smart detector for capillary analysis was realized and employed for concentration and molecular discrimination from the average wavelength of fluorescence spectrum.…”

Section: Chemistrymentioning

confidence: 99%

Color Sensors and Their Applications

Puiu

2012

Springer Series on Chemical Sensors and Biosensors

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This chapter intends to provide an introduction to and a very brief summary of the principal categories of color sensors and of their applications, both relatively little known to the general public.First, an introduction describes the background of the topic(s) and the overall context. The main differences between two major but complementary techniques, colorimetry and spectrometry, will be presented here, as well as a quick summary of the scientific, technical, and industrial applications of color sensing. The second section will summarize the basic operational principles and architectures of color sensors realized in silicon. Although stand-alone detectors will also be described and discussed, the main focus will be on solid-state microsensors which can ideally be monolithically integrated together with signal processing circuits onto the same chip as "smart sensors" or intelligent microsystems. First, sensors realized only in monocrystalline silicon are summarized, followed then by those fabricated in other materials, with amorphous silicon and its alloys as the key players in this latter category.Finally, the chapter ends with the sections devoted to Conclusions and References. This chapter presents only a few of the most relevant aspects related to color sensors and examples of their practical applications. It is, in fact, an extensively abbreviated version of a much more detailed and exhaustive review dedicated to both color sensing and microspectrometry, and which is presently in preparation for future submission to Springer Verlag.

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“…Among various aromatic Volatile Organic Compounds (VOCs), Benzene, Toluene and Xylene (BTX) are highly carcinogenic in nature [1]. Being natural constituents of crude oil and coal, BTX are emitted to air through vehicle exhaust and different industrial process (like paints, cosmetics, adhesive etc.)…”

Section: Introductionmentioning

confidence: 99%

“…[2]. In extreme cases, BTX inhalation, oral consumption and/or skin absorption may affect nervous and blood production system [1,2].…”

Section: Introductionmentioning

confidence: 99%