Flexible Carbon Nanotube Based Gas Sensors Fabricated by Large-Scale Spray Deposition

Abdellah, Alaa; Abdelhalim, Ahmed; Loghin, F.; Köhler, Philipp; Ahmad, Zubair; Scarpa, Giuseppe; Lugli, Paolo

doi:10.1109/jsen.2013.2265775

Cited by 60 publications

(43 citation statements)

References 38 publications

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“…The inherently reduced dimensionality and, hence, high surface-to-volume ratio, which, together with outstanding gas adsorption capabilities, renders CNTs ideal candidate for environmental sensing applications [6], [7]. In general, CNTs could be classified into single-walled carbon nanotubes (SWCNTs) and multi-walled carbon nanotubes (MWCNTs).…”

Section: Introductionmentioning

confidence: 99%

Highly sensitive and selective carbon nanotube-based gas sensor arrays functionalized with different metallic nanoparticles

Abdelhalim

Winkler

Loghin

et al. 2015

Sensors and Actuators B: Chemical

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Section: Introductionmentioning

confidence: 99%

Highly sensitive and selective carbon nanotube-based gas sensor arrays functionalized with different metallic nanoparticles

Abdelhalim

Winkler

Loghin

et al. 2015

Sensors and Actuators B: Chemical

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“…0.03 wt % of CNTs were added to the solution and treated with a horn sonicator (Branson Sonifier S-450D) for 25 min at a power of 50%. The solution was then centrifuged at 15 krpm for 90 min and the top 80% of the supernatant separated, to be used as the CNT ink [32].…”

Section: Methodsmentioning

confidence: 99%

“…To speed up the drying of the wet droplets arriving at the substrate, the substrates were left lying on the hot plate. This approach allows the formation of dry layers with good thickness control over time, enhancing at the same time reproducibility [32].…”

mentioning

confidence: 99%

Scalable Deposition of Nanomaterial-Based Temperature Sensors for Transparent and Pervasive Electronics

et al. 2018

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This work presents a comparative analysis of materials for planar semitransparent thermocouples fabricated by spray deposition on a flexible substrate. Three different materials are employed to build such devices, analyzing also the effect of the spray order in their final performance. The highest Seebeck coefficient (50.4 μV/K) is found for a junction made of carbon nanotubes (CNTs) on top of silver nanowires (AgNWs) whereas its efficiency in terms of power is the lowest because of the higher sheet resistance of the CNTs. In this case, the best combination for energy-harvesting purposes would be poly (3,4-ethylenedioxythiophene) polystyrene sulfonate (PEDOT:PSS) and AgNWs, with a power factor of 219 fW/K2. These results prove the feasibility of developing large-scale and cost-effective thermocouples that could be used for sensing or energy-harvesting applications.

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“…A nanosensor is a type of nanotechnology application by spraying a CNTs thin film on a label or surface of smart packaging. CNTs‐based gas sensors show an exceptionally high performance as well as immediate response to the ammonia (NH 3 ) and carbon dioxide (CO 2 ) gas (Abdelhalim and others ; Abdellah and others ). Food packaging enables detection, sensoring, and communication and can alert shopkeepers if their meat products are at risk of spoilage.…”

Section: Current Commercialized Nano‐food Packaging In the Marketmentioning

confidence: 99%

Nano‐Food Packaging: An Overview of Market, Migration Research, and Safety Regulations

Bumbudsanpharoke

2015

Journal of Food Science

334

121

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Recently, food packages produced with nanoparticles, "nano-food packaging," have become more available in the current market. However, although the use of nanomaterials is increasing in food packaging applications, concern over toxicity affects consumer perceptions and acceptance. Quite a number of commercialized forms of nano-food packaging are coated or composited product with inorganic materials, for example, nanosilver and nanoclay as representative examples. Several studies have shown the possibility of nanomaterial migration from packaging or containers to foodstuff. The debate is still ongoing among researchers about the extent of migration and whether it is negligible and safe. Government agencies and stakeholders must hurry to determine use limitations and release conclusive legislation and regulations as soon as possible since nano-food packaging may have great impacts on human health. This paper aims to review the availability of nano-food packaging in the current market, report case studies on nanomaterial migration, and present the current status of safety regulations and management of nano-food packaging in leading countries across regions. This review should enable governments and researchers to develop further nanomaterial risk assessment studies.

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Flexible Carbon Nanotube Based Gas Sensors Fabricated by Large-Scale Spray Deposition

Cited by 60 publications

References 38 publications

Highly sensitive and selective carbon nanotube-based gas sensor arrays functionalized with different metallic nanoparticles

Highly sensitive and selective carbon nanotube-based gas sensor arrays functionalized with different metallic nanoparticles

Scalable Deposition of Nanomaterial-Based Temperature Sensors for Transparent and Pervasive Electronics

Nano‐Food Packaging: An Overview of Market, Migration Research, and Safety Regulations

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