Browsing Science (Faculty of) by Author "Ren, Carolyn L."
Now showing items 1-9 of 9
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Droplet formation in microfluidic T-junction generators operating in the transitional regime. I. Experimental observations
Glawdel, Tomasz; Elbuken, Caglar; Ren, Carolyn L. (American Physical Society Physics, 2012-01-26)This is the first part of a two-part study on the generation of droplets at a microfluidic T-junction operating in the transition regime where confinement of the droplet creates a large squeezing pressure that influences ... -
Droplet formation in microfluidic T-junction generators operating in the transitional regime. II. Modeling
Glawdel, Tomasz; Elbuken, Caglar; Ren, Carolyn L. (American Physical Society Physics, 2012-01-26)This is the second part of a two-part study on the generation of droplets at a microfluidic T-junction operating in the transition regime. In the preceding paper [Phys. Rev. E 85, 016322 (2012)], we presented our experimental ... -
Droplet formation in microfluidic T-junction generators operating in the transitional regime. III. Dynamic surfactant effects
Glawdel, Tomasz; Ren, Carolyn L. (American Physical Society Physics, 2012-08-13)This study extends our previous work on droplet generation in microfluidic T-junction generators to include dynamic interfacial tension effects created by the presence of surfactants. In Paper I [T. Glawdel, C. Elbuken, ... -
Droplet Microfluidic System with On-Demand Trapping and Releasing of Droplet for Drug Screening Applications
Courtney, Matthew; Chen, Xiaoming; Chan, Sarah; Mohamed, Tarek; Rao, Praveen P.N.; Ren, Carolyn L. (American Chemical Society (ACS), 2017-01-03)96-Well plate has been the traditional method used for screening drug compounds libraries for potential bioactivity. Although this method has been proven successful in testing doseÐresponse analysis, the microliter consumption ... -
Hydrodynamic shrinkage of liquid CO2 Taylor drops in a straight microchannel
Qin, Ning; Wen, John Z.; Ren, Carolyn L. (IOP Publishing, 2018-02-12)Hydrodynamic shrinkage of liquid CO2 drops in water under a Taylor flow regime is studied using a straight microchannel (length/width similar to 100). A general form of a mathematical model of the solvent-side mass transfer ... -
Non-linear, non-monotonic effect of nano-scale roughness on particle deposition in absence of an energy barrier: Experiments and modeling
Jin, Chao; Glawdel, Tomasz; Ren, Carolyn L.; Emelko, Monica B. (Springer Nature, 2015-12-11)Deposition of colloidal- and nano-scale particles on surfaces is critical to numerous natural and engineered environmental, health, and industrial applications ranging from drinking water treatment to semi-conductor ... -
Numerical Study on Single Flowing Liquid and Supercritical CO2 Drop in Microchannel: Thin Film, Flow Fields, and Interfacial Profile
Qin, Ning; Feng, Yu; Wen, John Z.; Ren, Carolyn L. (MDPI, 2018-06-01)Taylor segments, as a common feature in two- or multi-phase microflows, are a strong flow pattern candidate for applications when enhanced heat or mass transfer is particularly considered. A thin film that separates these ... -
On nonequilibrium shrinkage of supercritical CO2 droplets in a water-carrier microflow
Qin, Ning; Wen, John Z.; Chen, Baixin; Ren, Carolyn L. (AIP Publishing, 2018-07-16)We report an experimental study on the hydrodynamic shrinkage of supercritical carbon dioxide (scCO(2)) microdroplets during a nonequilibrium process. After scCO(2 )microdroplets are generated by water shearing upon a ... -
Photocatalytic performances of ZnO nanoparticle film and vertically aligned nanorods in chamber-based microfluidic reactors: Reaction kinetics and flow effects
Zhao, Pei; Qin, Ning; Wen, John Z.; Ren, Carolyn L. (Elsevier BV, 2017-07-15)The nanoparticle seed layer (a film) and vertically aligned nanorods of zinc oxide (ZnO) with different lengths were fabricated within a novel chamber-based microfluidic (microchamber) reactor with a varying height of ...