Through understanding that the fluid in the vortex fluidic device (VFD) housing an inclined rapidly rotating tube exhibits resonance behaviours from the confining boundaries of the glass surface and the...
Mixing immiscible liquids typically requires the use of auxiliary substances including phase transfer catalysts, microgels, surfactants, complex polymers and nano- particles and/or micromixers. Centrifugally separated immiscible liquids of different densities...
The fabrication of hybrid protein-Cu3(PO4)2 nanoflowers (NFs) via an intermediate toroidal structure is dramatically accelerated under shear using a vortex fluidic device (VFD) which possesses a rapidly rotating angled tube. As-prepared laccase NFs (LNFs) exhibit ≈1.8-fold increase in catalytic activity compared to free laccase under diffusion control, which is further enhanced by ≈2.9-fold for the catalysis under shear in the VFD. A new LNF immobilization platform (VLIS) was subsequently developed by mixing the LNFs for 15 min with silica hydrogel resulting in gelation along the VFD tube surface. The resultant LNFs@Silica coating is highly stable and reusable, which allows a dramatic 16-fold enhancement in catalytic rates relative to LNF@Silica inside glass vials. Real-time monitoring of the UV-Vis within the LNFs@Silica coated tube reveals good stability of the coating in continuous flow processing. The results demonstrate the utility of the VFD microfluidic platform, further highlighting its ability in controlling chemical and enzymatic processes.
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