@article{scholars19844,
            year = {2024},
             doi = {10.1088/1361-6439/ad2305},
          number = {3},
          volume = {34},
            note = {cited By 0},
         journal = {Journal of Micromechanics and Microengineering},
           title = {Wearable microfluidic sweat collection platform with a calorimetric flow rate sensor for realtime and long-term sweat rate measurements},
          author = {Silverio, A. A. and Ho, E. T. W. and Ang, J. and Esguerra, K.},
        abstract = {This work presents the design and fabrication of a wearable microfluidic patch-based system for sweat collection with a calorimetric flow rate sensor based on heat convection for measuring sweat rate (SR). The effects were predicted using a 3D multi-physics simulator and were verified on a fabricated patch made of polyimide layers. The sensor can detect surface temperature gradients of 302-312 K caused by fluid flowing thru the microfluidic channels at a rate of 0.5-23 {\^A}ug s{\^a}??1 that fall within the physiological range of SR. Meanwhile, the relation between flow rate and temperature gradient is highly linear (Pearson r2 = 0.999) and repeatable. This work also demonstrates a low-cost method for patterning microfluidic channels on flexible substrates which can be used for mass production of wearable patches. {\^A}{\copyright} 2024 IOP Publishing Ltd.},
             url = {https://www.scopus.com/inward/record.uri?eid=2-s2.0-85185542062&doi=10.1088\%2f1361-6439\%2fad2305&partnerID=40&md5=7f9b2a7b6735c4233a2a633674127263},
        keywords = {Calorimetry; Flow rate; Fluidic devices; Heat convection; Substrates; Thermal gradients; Wearable sensors, Calorimetric flow rate sensor; Channel modelling; Flow rate sensors; Microfluidic channel modeling; Microfluidics channels; Rate sensing; Real- time; Sweat rate sensing; Sweat rates; Wearable devices, Microfluidics}
}