3D printed optofluidic biosensor: NaYF4: Yb3+, Er3+ upconversion nano-emitters for temperature sensing
نویسندگان
چکیده
The nonintrusive, realtime, and accurate measurement of the local temperature has applications in a variety scenarios. This need led to significant research develop novel nanophotonic sensors. In this paper, 3D-printed optofluidic chip is nano-engineered for local, contactless, precise optical microfluidic channels using lanthanide-doped upconversion nanoparticles. Temperature sensing nano-emitters are doped UV-curable matrix embedded into channel maskless photolithography. Photoluminescence NaYF4:Yb3+, Er3+ nanoparticles have two bands green spectrum which PL maximums at 521 nm 541 used sensing. Thus, enabling ratiometric when excited near-infrared light, desirable measurements biological biomedical settings. functionality sensor nonintrusive microalgae culture medium demonstrated.
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ژورنال
عنوان ژورنال: Sensors and Actuators A-physical
سال: 2021
ISSN: ['0924-4247', '1873-3069']
DOI: https://doi.org/10.1016/j.sna.2021.112734