Applications of LEDs in optical sensors and chemical sensing device for detection of biochemicals, heavy metals, and environmental nutrients. (August 2017)

• Record Type: Journal Article
• Authors: Yeh, Pulin; Yeh, Naichia; Lee, Chin-Hai; Ding, Ting-Jou
• Is Part Of: Renewable & sustainable energy reviews. Volume 75(2017)
• Page Start: 461
• Page End: 468
• Publication Date: 2017-08
• Subjects: TAS total analysis system -- BCG bromocresol green -- BoNT botulinum neurotoxin -- CCD charge-coupled device -- CE capillary electrophoresis -- FITC fluorescein isothiocyanate -- FWHM full wave at half maximum -- GPMAS gas-phase molecular absorption spectrometric -- IR infrared -- LIF laser-induced fluorescence -- LED light emitting diode -- LED-IF LED-induced fluorescence -- LOD limit of detection -- MG malachite green -- OFCS optical fiber chemical sensor -- OLED organic light emitting diode -- OPA o-Phthaldialdehyde -- PD photodiodes -- PEO poly(ethylene oxide) -- PDMS poly(dimethylsiloxane) -- pLED polyfluorene-based thin-film polymer LED -- UV ultraviolet; Chemical sensor -- Fluorescence -- LED -- Microfludic device -- Optical fiber; Renewable energy sources -- Periodicals; Power resources -- Periodicals; Énergies renouvelables -- Périodiques; Ressources énergétiques -- Périodiques; 333.794
• DOI: 10.1016/j.rser.2016.11.011
• Languages: English
• ISSNs: 1364-0321

Abstract

Abstract: This study examined the applications of chemical sensing devices integrated with LEDs in the range between UV and IR (247–3800 nm). These chemical sensors are used to detect heavy metals, toxins and toxic gases, environmental nutrients, as well as biochemicals and biohazard related compounds. The possible shortcomings of some reviewed applications are discussed, with suggestions or likely resolutions provided. Orange, yellow, and green LEDs, which are less used in other scientific studies, are found to prevail in sensing device applications. A table that includes the findings covered in this paper has been compiled to list some common types of LEDs and their respective uses in the areas of interest. As the fifth paper of a series that discuss LEDs' applications in scientific researches, this review leads to the conclusion that LEDs have become the prominent light sources of chemical sensors and are well qualified to succeed its more energy demanding counterparts in and beyond the reviewed areas.