An integrated gas-liquid droplet microfluidic platform for digital sampling and detection of airborne targets

Tirandazi, Pooyan; Hidrovo, Carlos

doi:10.1016/j.snb.2018.03.057

Cited by 18 publications

(9 citation statements)

References 80 publications

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“…[8][9][10][11] Moreover these droplets can be used in high throughput screening applications to find rare molecules and cells of desired properties. [12][13][14] The prospect of translating these laboratory-scale demonstrations into commercial success has been further heightened by the recent advances in the large-scale production of droplets and bubbles using parallelized microfluidic generators. [15][16][17][18][19][20][21][22] One important class of multiphasic fluid dispersions that microfluidics are uniquely well suited to produce are ternary compound bubbles.…”

Section: Graphical Abstract Introductionmentioning

confidence: 99%

Large-Scale Production of Compound Bubbles Using Parallelized Microfluidics for Efficient Extraction of Metal Ions

et al. 2019

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Section: Graphical Abstract Introductionmentioning

confidence: 99%

Large-Scale Production of Compound Bubbles Using Parallelized Microfluidics for Efficient Extraction of Metal Ions

et al. 2019

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“…Triandazi et al have developed a droplet-based microfluidic platform for detecting ammonia in a gaseous mixture [ 37 ]. The device consists of three units: Generation, collection, and harvesting.…”

Section: Bubble/droplet-based Microfluidicsmentioning

confidence: 99%

Microfluidic Gas Sensors: Detection Principle and Applications

et al. 2022

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With the rapid growth of emerging point-of-use (POU)/point-of-care (POC) detection technologies, miniaturized sensors for the real-time detection of gases and airborne pathogens have become essential to fight pollution, emerging contaminants, and pandemics. However, the low-cost development of miniaturized gas sensors without compromising selectivity, sensitivity, and response time remains challenging. Microfluidics is a promising technology that has been exploited for decades to overcome such limitations, making it an excellent candidate for POU/POC. However, microfluidic-based gas sensors remain a nascent field. In this review, the evolution of microfluidic gas sensors from basic electronic techniques to more advanced optical techniques such as surface-enhanced Raman spectroscopy to detect analytes is documented in detail. This paper focuses on the various detection methodologies used in microfluidic-based devices for detecting gases and airborne pathogens. Non-continuous microfluidic devices such as bubble/droplet-based microfluidics technology that have been employed to detect gases and airborne pathogens are also discussed. The selectivity, sensitivity, advantages/disadvantages vis-a-vis response time, and fabrication costs for all the microfluidic sensors are tabulated. The microfluidic sensors are grouped based on the target moiety, such as air pollutants such as carbon monoxide and nitrogen oxides, and airborne pathogens such as E. coli and SARS-CoV-2. The possible application scenarios for the various microfluidic devices are critically examined.

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“…This work showed that triple emulsion droplets could be made; future applications in DNA analysis or biosensing might be promising. Detection of molecules in air was performed by using a gas–liquid droplet method so the liquid picked up target analytes . Using this method, ammonia was detected at 500 ppm; other airborne analytes should also be tested and their detection limits measured.…”

Section: Pdmsmentioning

confidence: 99%

“…Detection of molecules in air was performed by using a gas−liquid droplet method so the liquid picked up target analytes. 117 Using this method, ammonia was detected at 500 ppm; other airborne analytes should also be tested and their detection limits measured. Parylene was used to coat the outside of a PDMS device to control diffusion into and out from the channels.…”

Section: ■ Pdmsmentioning

confidence: 99%

Microfluidics: Innovations in Materials and Their Fabrication and Functionalization

et al. 2019

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An integrated gas-liquid droplet microfluidic platform for digital sampling and detection of airborne targets

Cited by 18 publications

References 80 publications

Large-Scale Production of Compound Bubbles Using Parallelized Microfluidics for Efficient Extraction of Metal Ions

Large-Scale Production of Compound Bubbles Using Parallelized Microfluidics for Efficient Extraction of Metal Ions

Microfluidic Gas Sensors: Detection Principle and Applications

Microfluidics: Innovations in Materials and Their Fabrication and Functionalization

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