Publications by authors named "Julian William Gardner"

Materials following Murray's law are of significant interest due to their unique porous structure and optimal mass transfer ability. However, it is challenging to construct such biomimetic hierarchical channels with perfectly cylindrical pores in synthetic systems following the existing theory. Achieving superior mass transport capacity revealed by Murray's law in nanostructured materials has thus far remained out of reach.

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Article Synopsis
  • Formaldehyde is a harmful indoor air pollutant and detecting it accurately in real-time has been challenging for low-power sensors due to noise and baseline drift.
  • Researchers developed a fully 3D-printed sensor using quantum dot/graphene-based aerogel that can recognize formaldehyde sensitively and in real-time at room temperature.
  • This new sensor achieved a detection limit of just 8.02 parts per billion with a power consumption of only ∼130 microwatts, and incorporates smart algorithms for reliable detection even under difficult conditions.
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The gas sensor market is growing fast, driven by many socioeconomic and industrial factors. Mid-infrared (MIR) gas sensors offer excellent performance for an increasing number of sensing applications in healthcare, smart homes, and the automotive sector. Having access to low-cost, miniaturized, energy efficient light sources is of critical importance for the monolithic integration of MIR sensors.

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