The microelectronic wireless nitrate sensor network for environmental water monitoring

Gartia, Manas Ranjan; Braunschweig, Björn; Chang, Te Wei; Moinzadeh, Parya; Minsker, Barbara; Agha, Gul; Wiȩckowski, Andrzej; Keefer, Laura; Liu, Gang Logan

doi:10.1039/c2em30380a

Cited by 36 publications

(19 citation statements)

References 38 publications

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“…Water and humidity detection is widely used in various fields, including water leakage detection, chemical reaction control, biomedical carrier and environmental monitor 1, 2 . There are tremendous efforts have been dedicated for the quantification and tracing water (or humidity) conductivity accurately and efficient in the past decades 3, 4 .…”

Section: Introductionmentioning

confidence: 99%

A green route to prepare fluorescent and absorbent nano-hybrid hydrogel for water detection

Wang

Qing

Yan

et al. 2017

Sci Rep

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An environment-friendly fluorescent nano-hybrid hydrogel has been synthesized successfully, from cellulose nanocrystal (CNC), acrylic acid (AA) and phosphorescent Eu2+/Dy3+ doped SrAl2O4 via free radical polymerization. The hydrogel network matrix fixed Eu2+/Dy3+ doped SrAl2O4 nanoparticles by polymer chains with coordinate bonds that prevented particles from aggregating and quenching in water. The fluorescent nano-hybrid hydrogel exhibited extremely high water absorption of which the swelling ratio in distilled water and NaCl salt solution were respectively of 323.35 g/g and 32.65 g/g. Furthermore, the hydrogel displayed excellent water retention property that can keep half of the moisture even exposed to 80 °C for 210 min. Besides, the hydrogel had bright green fluorescence under the sunlight or ultraviolet excitation, and the fluorescence intensity was up to 125477 after swelling 50 times in water. The time-resolved photoluminescence (TRPL) afterglow decay examination showed that the fluorescent emission persisted for 4 h after hydrogels excited at 368 nm wavelength UV-light for 10 min. The fluorescence intensity behaved significant linear relationship with the swelling ratio. As a result, these hydrogels were considered as promising candidates for the preparation of stable and sensitive sensor materials in green water detection.

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Section: Introductionmentioning

confidence: 99%

A green route to prepare fluorescent and absorbent nano-hybrid hydrogel for water detection

Wang

Qing

Yan

et al. 2017

Sci Rep

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“…Biological analysis technologies play an important role in many fields such as disease biomarker diagnosis and monitoring, drug discovery, and molecular analysis [ 1 – 7 ]. Established techniques include enzyme-linked immunosorbent assay (ELISA), western blotting, polymerase chain reaction (PCR), and fluorescence conjugated reagents.…”

Section: Introductionmentioning

confidence: 99%

Low Temperature Reactive Sputtering of Thin Aluminum Nitride Films on Metallic Nanocomposites

Ramadan

Evoy

2015

PLoS ONE

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Piezoelectric aluminum nitride thin films were deposited on aluminum-molybdenum (AlMo) metallic nanocomposites using reactive DC sputtering at room temperature. The effect of sputtering parameters on film properties was assessed. A comparative study between AlN grown on AlMo and pure aluminum showed an equivalent (002) crystallographic texture. The piezoelectric coefficients were measured to be 0.5±0.1 C m-2 and 0.9±0.1 C m-2, for AlN deposited on Al/0.32Mo and pure Al, respectively. Films grown onto Al/0.32Mo however featured improved surface roughness. Roughness values were measured to be 1.3nm and 5.4 nm for AlN films grown on AlMo and on Al, respectively. In turn, the dielectric constant was measured to be 8.9±0.7 for AlN deposited on Al/0.32Mo seed layer, and 8.7±0.7 for AlN deposited on aluminum; thus, equivalent within experimental error. Compatibility of this room temperature process with the lift-off patterning of the deposited AlN is also reported.

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“…electrochemical-based multi-analyte biochip, microfluidics, electronics controller and energy harvesting system for power supply. Furthermore, a low cost, miniaturized and sensitive microelectronic wireless nitrate sensor network was established for quantification of nitrate concentration in water environments [393]. The conceptual design of sensor network consisted of sensor interface (input and output parameter interface), a low-power processor and wireless communication named 'Imote2 .…”

Section: Wireless Sensor Network and Remote Sensing Applicationsmentioning

confidence: 99%

Detection of contaminants in water supply: A review on state-of-the-art monitoring technologies and their applications

Zulkifli

Rahim

Lau

2018

Sensors and Actuators B: Chemical

213

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a b s t r a c tWater monitoring technologies are widely used for contaminants detection in wide variety of water ecology applications such as water treatment plant and water distribution system. A tremendous amount of research has been conducted over the past decades to develop robust and efficient techniques of contaminants detection with minimum operating cost and energy. Recent developments in spectroscopic techniques and biosensor approach have improved the detection sensitivities, quantitatively and qualitatively. The availability of in-situ measurements and multiple detection analyses has expanded the water monitoring applications in various advanced techniques including successful establishment in hand-held sensing devices which improves portability in real-time basis for the detection of contaminant, such as microorganisms, pesticides, heavy metal ions, inorganic and organic components. This paper intends to review the developments in water quality monitoring technologies for the detection of biological and chemical contaminants in accordance with instrumental limitations. Particularly, this review focuses on the most recently developed techniques for water contaminant detection applications. Several recommendations and prospective views on the developments in water quality assessments will also be included.

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The microelectronic wireless nitrate sensor network for environmental water monitoring

Cited by 36 publications

References 38 publications

A green route to prepare fluorescent and absorbent nano-hybrid hydrogel for water detection

A green route to prepare fluorescent and absorbent nano-hybrid hydrogel for water detection

Low Temperature Reactive Sputtering of Thin Aluminum Nitride Films on Metallic Nanocomposites

Detection of contaminants in water supply: A review on state-of-the-art monitoring technologies and their applications

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